CN215253530U - Connecting joint and connecting device for double-side supporting plates - Google Patents

Abstract

The utility model discloses a attach fitting and connecting device for two side support panel, attach fitting include first holder, with second holder that first holder matches, and the locking connection the locking subassembly of first holder and second holder, first holder folds and forms centre gripping hole, clamping part, first splint groove and second splint groove with the second holder. The center line direction of centre gripping hole with the extending direction of clamping part is crossing just the centre gripping hole with the clamping part sets up back to back first splint groove certainly the hole terminal surface in centre gripping hole extends to the clamping part. The second splint groove extends to from the hole end face in centre gripping hole the clamping part, first splint groove and second splint groove set up back to back.

Description

Connecting joint and connecting device for double-side supporting plates

Technical Field

The utility model belongs to the technical field of connecting device technique and specifically relates to a attach fitting and connecting device for two side support panel are related to.

Background

The tubular section bar is used for building a material frame to form a frame type material frame. Wherein, the built material shelf is required to be provided with a clapboard to bear materials. However, the two intersecting profiles are connected by a connecting joint to form a frame-type structure. However, the existing joint is a solid structure, and the plate needs to be provided with a notch at the joint to avoid the joint, which increases the processing steps and affects the compatibility of the plate. In addition, the outer peripheral wall of the existing tubular section is attached to the edge of the partition plate, so that the gravity borne by the partition plate cannot be transferred to the tubular section. Particularly, the partition section bar for separating the middle of the material shelf cannot support the plates on both sides of the section bar, and the carrying effect of the plates is affected, so that improvement is needed.

SUMMERY OF THE UTILITY MODEL

To the not enough of above-mentioned prior art existence, the utility model aims at providing a attach fitting and connecting device for two side support panel.

In order to realize the purpose, the utility model discloses the technical scheme who adopts is: the utility model provides a attach fitting for two side support panel, attach fitting includes first holder, with second holder that first holder matches, and the locking connection the locking subassembly of first holder and second holder, first holder and second holder fold and form centre gripping hole, clamping part, first splint groove and second splint groove, the central line direction in centre gripping hole with the extending direction of clamping part is crossing just the centre gripping hole with the clamping part sets up to the back of the body, first splint groove certainly the hole terminal surface in centre gripping hole extends to the clamping part, the second splint groove certainly the hole terminal surface in centre gripping hole extends to the clamping part, first splint groove and second splint groove set up to the back of the body.

In one embodiment, the notch width of the first splint slot is greater than or equal to the notch width of the second splint slot.

In one embodiment, the symmetrical bisecting plane of the first cleat groove coincides with the symmetrical bisecting plane of the second cleat groove; or the symmetrical bisection plane of the first splint groove and the symmetrical bisection plane of the second splint groove are parallel to each other and do not coincide with each other.

In one embodiment, the first cleat groove and the second cleat groove are symmetrically arranged.

In one embodiment, the symmetrical bisector plane of the first splint groove coincides with the center line of the clamping hole, and the symmetrical bisector plane of the first splint groove coincides with the symmetrical bisector plane of the clamping portion.

In one embodiment, the clamping portion is in a groove shape or a through hole shape.

In one embodiment, the first clamping member includes a main body portion, an arc portion recessed from a surface of the main body portion, a groove portion, a first notch portion, and a second notch portion spaced apart from the first notch portion, the central line of the arc-shaped part is intersected with the central line of the groove part, the extending direction of the first gap part is parallel to the central line of the arc-shaped part and extends from the groove part to the arc-shaped part, a first clamping plate groove is formed between the first notch part and the second clamping piece, the extending direction of the second notch part is parallel to the central line of the arc-shaped part and extends from the groove part to the arc-shaped part, a second clamping plate groove is formed between the second gap portion and the second clamping piece, a clamping hole is formed between the arc portion and the second clamping piece, and a clamping portion is formed between the groove portion and the second clamping piece.

In an embodiment, the first notch portion is recessed from an edge of the main body portion toward a center line direction of the arc portion and intersects with a first plane, and the first plane is a folding plane of the first clamping piece and the second clamping piece.

In one embodiment, the first clamping member and the second clamping member are symmetrically arranged.

The utility model also discloses a connecting device, reach as above including first tubulose section bar, second tubulose section bar, first panel, second panel and connector lug, first tubulose section bar disposes first recess and third recess, second tubulose section bar disposes the second recess, first tubulose section bar plug-in connection in the centre gripping hole, first holder and second holder centre gripping are fixed second tubulose section bar, the edge of first panel is restricted in first recess, first splint groove and second recess, the edge of second panel is restricted in third recess, second splint groove and second recess.

After the structure is adopted, compared with the prior art, the utility model the advantage that has is: the first clamping piece and the second clamping piece are clamped and folded to form a clamping hole and a clamping part which are respectively connected with the two sectional materials. And, the attach fitting still possesses the first splint groove of the first panel of centre gripping, the second splint groove of centre gripping second panel, and first panel and second panel are separated and are connected to the second tubular section bar jointly through attach fitting through first tubular section bar to improve connecting device's use convenience, first panel and second panel are connected and simple to operate, and bearing capacity is strong.

Drawings

The invention will be further described with reference to the following figures and examples:

fig. 1 is a schematic perspective view of the connection joint of the present invention.

Fig. 2 is a schematic perspective view of the first clamping member of the present invention.

Fig. 3 is a schematic structural view of the section bars of the present invention connected to form a part of the material shelf through the connecting joints.

Fig. 4 is an explosion structure diagram of the section bar of the utility model which is connected by the connecting joint to form a part of the material shelf.

Fig. 5 is a schematic perspective view of the first tubular section of the present invention.

Fig. 6 is a schematic cross-sectional structure diagram of the first tubular profile of the present invention.

In the figure: a first tubular profile 10; a tube body 11; a first engaging portion 12; an arc-shaped curved surface 121; a first clamping surface 122; a second clamping surface 123; a first groove 13; a first slot wall 131; a second slot wall 132; a tank bottom wall 133; a first curved surface 134; a second curved surface 135; a clamping boss 14; a blowdown tank 141; a second engaging portion 15; a third groove 16; a connection joint 20; a first clamp 21; a main body portion 211; an arc-shaped portion 212; the convex rib 2121 is clamped; a groove portion 213; a clamping face 2131; an avoidance surface 2132; a clamp block 2133; first notched portion 214; a first plane 2141; a second notch portion 215; a second clamp 22; a locking assembly 23; a first cleat groove 24; a clamping hole 25; a clamping portion 26; a second clamping plate groove 27; a first sheet 30; a second tubular profile 40; a second groove 41; a second sheet 50.

Detailed Description

The following description is only a preferred embodiment of the present invention, and does not limit the scope of the present invention.

See fig. 1-6 for illustration: the utility model discloses a attach fitting for two side support panel, attach fitting 20 include first holder 21, with second holder 22 that first holder 21 matches, and the locking is connected the locking subassembly 23 of first holder 21 and second holder 22. The first clamping piece 21 and the second clamping piece 22 are folded to form a clamping hole 25, a clamping part 26, a first clamping plate groove 24 and a second clamping plate groove 27, the central line direction of the clamping hole 25 is intersected with the extending direction of the clamping part 26, the clamping hole 25 and the clamping part 26 are arranged back to back, and the first clamping plate groove 24 extends to the clamping part 26 from the hole end face of the clamping hole 25. The second clamping plate groove 27 extends from the hole end face of the clamping hole 25 to the clamping portion 26, and the first clamping plate groove 24 and the second clamping plate groove 27 are arranged back to back.

The first and second clamping members 22 are clamped together to form a clamping hole 25 and a clamping portion 26 for connecting the two profiles, respectively. The joint 20 further includes a first clamping groove 24 for clamping the first plate member 30 and a second clamping groove 27 for clamping the second plate member 50. The first plate 30 and the second plate 50 are separated by the first tubular section 10 and are connected to the second tubular section 40 together by the connecting joint 20, so that the use convenience of the connecting device is improved, and the first plate 30 and the second plate 50 are convenient to connect and install and have strong bearing performance. The connection tabs 20 are used for connecting devices to form part of a pallet rack or material rack.

See fig. 3 and 4 for illustration: wherein, the connecting device comprises a first tubular section bar 10, a second tubular section bar 40, a first plate 30 and a connecting joint 20. The first tubular profile 10 is provided with a first groove 13 and a third groove 16 and the second tubular profile 40 is provided with a second groove 41. The first tubular section bar 10 is connected to the clamping hole 25 in an inserting manner, and the first clamping piece 21 and the second clamping piece 22 clamp and fix the second tubular section bar 40. The edges of the first plate 30 are defined in the first groove 13, the first clamping groove 24 and the second groove 41, and the edges of the second plate 50 are defined in the third groove 16, the second clamping groove 27 and the second groove 41.

The first tubular profile 10 is plug-connected with the clamping hole 25 such that the connection nipple 20 is fixed to one end of the first tubular profile 10. The connecting joint 20 is connected to the second tubular section bar 40 by clamping through the clamping part 26 so that the first tubular section bar 10 and the second tubular section bar 40 are intersected vertically or obliquely, thereby connecting the first tubular section bar 10 and the second tubular section bar 40 into a whole.

The first clamping plate groove 24 is a groove structure and is disposed on the outer circumferential wall of the connecting joint 20, when the connecting joint 20 connects the first tubular profile 10 and the second tubular profile 40, the first groove 13, the first clamping plate groove 24 and the second groove 41 are located on the same plane, and the edge of the first plate 30 is defined in the first groove 13, the first clamping plate groove 24 and the second groove 41, so as to transmit the bearing force borne by the first plate 30 to the first tubular profile 10, the connecting joint 20 and the second tubular profile 40.

The first clip groove 24 is located at a joining portion of the first clip 21 and the second clip 22 and is recessed toward a center line of the clip hole 25. The first clamping piece 21 and the second clamping piece 22 clamp the first plate 30 in a folded mode, and convenience in assembly of the first plate 30 is improved. The first plate 30 is fixed under the clamping action of the first clamping piece 21 and the second clamping piece 22, and the strength and reliability of connection and fixation of the first plate 30 are improved.

The second clamping plate groove 27 and the first clamping plate groove 24 are arranged oppositely, and the structure and the function of the two are similar. The second clamping plate groove 27 is arranged on the outer peripheral wall of the connecting joint 20 in a groove structure, when the connecting joint 20 connects the first tubular profile 10 and the second tubular profile 40, the third groove 16, the second clamping plate groove 27 and the second groove 41 are in the same plane, and the edge of the second plate 50 is limited in the third groove 16, the second clamping plate groove 27 and the second groove 41, so that the bearing force borne by the second plate 50 is transmitted to the first tubular profile 10, the connecting joint 20 and the second tubular profile 40. That is, the connection joint 20 and the first tubular section 10 constitute an intermediate partition section between the first plate 30 and the second plate 50, and provide support and limit for the first plate 30 and the second plate 50, thereby improving the bearing performance and the connection strength. Wherein the first groove 13 provided in the first tubular profile 10 fits into the first splint groove 20 and the third groove 16 fits into the second splint groove 27 to form a mating connection.

The two sides of the connecting joint 20 respectively clamp the first plate 30 and the second plate 50, wherein when the width of the notch of the first clamping plate groove 20 is greater than the width of the notch of the second clamping plate groove 27, the thickness of the first plate 30 is greater than that of the second plate 50, so that the thicknesses of the plates assembled by the connecting device are different, and the connecting device can be adapted to different weight bearing requirements. Alternatively, when the width of the notch of the first clip groove 20 is equal to the width of the notch of the second clip groove 27, then the thickness of the first sheet 30 is equal to the thickness of the second sheet 50, so as to facilitate the flexible connection of the connecting joint 20 to the second tubular profile 40 without the need to identify directionality.

Further, when the symmetrical bisector of the first splint groove 24 coincides with the symmetrical bisector of the second splint groove 27, the first sheet 30 and the second sheet 50 are in the same plane, so that the height of the bearing surface of the connecting device is consistent. When the symmetrical bisector of the first splint groove 24 and the symmetrical bisector of the second splint groove 27 are parallel to each other and do not coincide with each other, the first sheet 30 has a height difference with respect to the second sheet 50 to adjust the height difference between the bearing surfaces of the two sides of the first tubular section 10 to meet different usage scenario requirements.

See fig. 1 and 2 for illustration: the first clamping piece 21 and the second clamping piece 22 are symmetrically arranged, so that the structure of the connecting joint 20 is uniform, the connecting joint can be adapted to tubular profiles with symmetrical structures, and the using compatibility and the assembling reliability are improved. Optionally, the first and second cleat grooves 24, 27 are symmetrically disposed to equalize the forces on both sides of the connection joint 20. The structure of the first clamping plate groove 24 is exemplified below, and the second clamping plate groove 27 can be understood by referring to the structure of the first clamping plate groove 24, which is not described herein again.

In one embodiment, the plane of symmetry of the first clamping plate slot 24 coincides with the center line of the clamping hole 25, and the plane of symmetry of the first clamping plate slot 24 coincides with the plane of symmetry of the clamping portion 26. The first clamping plate groove 24 is of a long groove-shaped structure, and the notch of the first clamping plate groove 24 is arranged at the side wall of the connecting joint 20 and intersects with the peripheral wall of the connecting joint 20. The first cleat channel 24 extends from one end of the connection joint 20 to the other end to enable the first sheet 30 to traverse the connection. When the first plate 30 is clamped by the connecting joint 20, the edge of the first plate 30 does not need to be provided with a notch-shaped avoiding structure, so that the structural integrity and the use compatibility of the first plate 30 are improved.

The cross section of the first splint groove 24 is a rectangular groove structure, when the symmetrical bisection plane of the first splint groove 24 coincides with the center line of the clamping hole 25, the first plate 30 connected with the first splint groove 24 coincides with the center of the first tubular section 10 connected with the clamping hole 25, so that the force transmitted by the first plate 30 in the first splint groove 24 and the first groove 13 is balanced in the middle, and the stress performance is good. Based on the same principle, when the symmetrical bisector of the first splint groove 24 coincides with the symmetrical bisector of the clamping portion 26, the first sheet material 30 connected with the first splint groove 24 coincides with the center of the second tubular section bar 40 connected with the clamping portion 26, so that the force transmitted by the first sheet material 30 in the first splint groove 24 and the second groove 41 is centrally balanced, and the stress performance is good.

The clamping portion 26 is used for clamping and connecting the second tubular section bar 40, so that the first tubular section bar 10 and the second tubular section bar 40 are connected in an intersecting manner into a whole. Optionally, the clamping portion 26 is groove-shaped or through-hole-shaped. Specifically, when the clamping portion 26 is provided as a through hole structure, the arc-shaped groove provided at one end of the first clamping member 21 and the arc-shaped groove provided at one end of the second clamping member 22 are folded to form a hole structure, so that the clamping portion 26 is clamped to the outer circumferential wall of the second tubular section bar 40, wherein the second tubular section bar 40 is configured as an optical axis structure having the second groove 41 or a tubular structure having a local protrusion on the outer circumferential wall. When the clamping portion 26 is configured to be a groove structure, the clamping boss at one end of the first clamping member 21 and the clamping boss at one end of the second clamping member 22 are folded to form a groove structure, so that the clamping portion 26 is clamped to the outer circumferential wall of the second tubular profile 40, wherein the second tubular profile 40 is configured to have a partially convex tubular structure at the outer circumferential wall.

See fig. 1 and 2 for illustration: the example is given by taking the case that the clamping part 26 is a groove-shaped part for clamping and fixing the protruding local protrusion of the outer peripheral wall of the second tubular section bar 40. Wherein the clamping portion 26 is formed by the first clamping piece 21 and the second clamping frame being closed together and being able to adapt to the locally convex structure of the second tubular profile 40, as exemplified by the structure of the first clamping piece 21.

As shown in fig. 2 and 3, the first clamping member 21 includes a main body portion 211, an arc portion 212 and a groove portion 213 recessed from a surface of the main body portion 211, a first notch portion 214, and a second notch portion 215 spaced apart from the first notch portion 214, and a center line of the arc portion 212 intersects with a center line of the groove portion 213. The extending direction of the first notch portion 214 is parallel to the center line of the arc portion 212 and extends from the groove portion 213 to the arc portion 212, and a first clip groove 24 is formed between the first notch portion 214 and the second clip 22. The extending direction of the second notch portion 215 is parallel to the center line of the arc portion 212 and extends from the groove portion 13 to the arc portion 212, and a second clip groove 27 is formed between the second notch portion 215 and the second clip 22. A clamping hole 25 is formed between the arc portion 212 and the second clamping member 22, and a clamping portion 26 is formed between the groove portion 213 and the second clamping member 22.

The main body portion 211 is an elongated block structure, and the locking assembly 23 is locked and connected to the main body portion 211 to lock and fix the first clamping member 21 and the second clamping member 22. Specifically, the main body portion 211 is provided with a locking hole therethrough, and the locking assembly 23 includes a bolt member and a nut member, the bolt member being inserted through the locking hole and lockingly coupled with the nut member mounted to the second clamping member 22.

The arc portion 212 is formed by extending from the first end of the main body portion 211 to the second end and partially sinking in an arc shape, and the arc portion 212 is in an arc groove structure. When the first clamping member 21 and the second clamping member 22 are folded, a clamping hole 25 is formed between the arc-shaped part 212 and the arc-shaped groove of the second clamping member 22, and the clamping hole 25 is matched with the shape of the outer peripheral wall of the first tubular section bar 10 to clamp and fix the first tubular section bar 10. For example, the arcuate portion 212 is configured as a smooth arcuate groove structure that clamps a smooth shaft-like or reinforced tubular structural profile. Or, the first clamping member 21 further includes at least one clamping convex rib 2121 distributed at intervals on the arc-shaped portion 212, and an extending direction of the at least one clamping convex rib 2121 is parallel to a central line of the arc-shaped portion 212. The clamping ribs 2121 are distributed at intervals on the arc-shaped portion 212, so that the surface of the arc-shaped portion 212 forms a groove surface structure with undulation, which can guide the insertion and installation direction of the first tubular section 10 and prevent the first tubular section 10 from rotating relative to the center line of the clamping hole 25. Optionally, the outer peripheral wall of the first tubular profile 10 is provided with clamping bosses 1414 protruding uniformly from the surface, and the clamping bosses 1414 are matched with the grooves distributed between the clamping ribs 2121 of the arc-shaped portion 212 to form a complementary structure, so as to improve the tightness of the fit between the connection joint 20 and the first tubular profile 10 and the controllability of the movement space.

The groove portion 213 is provided at the second end of the body portion 211, and the extending direction of the groove portion 213 intersects the extending direction of the arc portion 212, so that the extending direction of the second tubular section bar 40 to which the groove portion 213 is connected obliquely intersects the extending direction of the first tubular section bar 10. Specifically, the length direction of the second tubular section bar 40 and the length direction of the first tubular section bar 10 are perpendicular or inclined to each other to facilitate adjustment of the connection direction of the pipes.

The groove 213 protrudes from the end of the main body 211 in a rib shape so that the adapter 20 is clamped on the clamping rib 2121 of the outer peripheral wall of the second tubular profile 40. The end of the groove 213 is adapted to the outer circumference of the second tubular profile 40 and the shape of the locking rib 2121, so that the connector 20 can move along the locking rib 2121 and can be fixed to the second tubular profile 40 after the locking assembly 23 is locked.

Alternatively, the groove portion 213 includes a clamping block 2133 bent from the body portion 211, a clamping surface 2131 positioned at a free end of the clamping block 2133, and a relief surface 2132, wherein the clamping surface 2131 and the relief surface 2132 obliquely intersect, and a clamping portion 26 is formed between the clamping surface 2131 and the second clamping member 22.

The clip block 2133 protrudes from the second end of the body portion 211 in a rib shape and is inclined with respect to the center line of the arc portion 212 to form an inclined rib structure. The clamping surface 2131 is a clamping block 2133 used for clamping and limiting a joint surface of the clamping convex rib 2121, wherein the clamping surface 2131 is matched with a side wall surface of the clamping convex rib 2121. When the side wall surface of the clamping rib 2121 is an inward-concave inclined surface, the clamping block 2133 is clamped on the clamping rib 2121 and can be prevented from being separated from the clamping rib 2121 along the radial direction of the second tubular section 40, so that the tightness of the combination is improved. The clamping surface 2131 is arranged opposite to the second clamping piece 22 to form a clamping part 26, and the clamping effect is good.

The avoiding surface 2132 is located at an end of the clamping block 2133 and is used for avoiding an interference part in the clamping process of the clamping block 2133 and the second tubular profile 40. Specifically, the avoiding surface 2132 is arranged opposite to the surface of the second tubular profile 40 when the first clamping piece 21 is clamped on the clamping convex rib 2121 of the second tubular profile 40, so as to reduce the clamping gap between the clamping block 2133 and the second tubular profile 40. Optionally, the relief surface 2132 and the surface of the second tubular profile 40 are matched to each other to reduce the space available for movement of the clamping block 2133.

The first notch portion 214 extends and is recessed from the edge of the first clamping member 21 in the center direction, the extending direction of the first notch portion 214 is parallel to the center line of the arc portion 212 and extends from the groove portion 213 to the arc portion 212, and a first clamping groove 24 is formed between the first notch portion 214 and the second clamping member 22. The first notch 214 is recessed from the edge of the main body 211 toward the center line of the arc 212 and intersects with a first plane 2141, and the first plane 2141 is a folding plane of the first clip 21 and the second clip 22. The cross section of the first notch part 214 is similar to a rectangular notch and is formed by sinking from the folding surface so as to adapt to the structure of the first plate 30, and the clamping is convenient. The second notch 215 and the first notch 214 are respectively located at two sides of the first clamping member 21, and the two are symmetrically arranged or have different sizes and are deviated from each other in opening directions.

See fig. 3-6 for illustration: the first tubular profile 10 and the second tubular profile 40 have the same or different structures, wherein the first tubular profile 10 and the second tubular profile 40 each have a groove structure for receiving an edge of the first plate 30, i.e. the first groove 13, the second groove 41 and the third groove 16. The first tubular profile 10 is exemplified.

Wherein, first tubulose section bar 10 is including being circular tubulose body 11, certainly the convex first joint portion 12 and the second joint portion 15 in surface of body 11, and certainly the recessed first recess 13 that forms in surface of first joint portion 12 and certainly the recessed second recess 41 that forms in surface of second joint portion 15, the direction of protrusion of first joint portion 12 and the direction of protrusion of second joint portion 15 deviate from each other. The extending direction of the first clamping portion 12 is parallel to the central line of the tube body 11, and the extending direction of the first groove 13 is parallel to the central line of the tube body 11. The extending direction of the second clamping portion 15 is parallel to the central line of the tube 11, and the extending direction of the second groove 41 is parallel to the central line of the tube 11.

First joint portion 12 and second joint portion 15 interval set up in the periphery wall of first tubular section bar 10 to the protruding direction between them deviates from each other, so that first joint portion 12 and second joint portion 15 can bear panel respectively. The first tubular section bar 10 is connected to the connector by inserting, so that the first clamping portion 12 coincides with the first clamping plate groove, and the second clamping portion 15 coincides with the second clamping plate groove 27. Further, the first tubular section bar 10 is installed at the connection joint to constitute a middle partition structure in the material rack, so as to improve the bearing capacity of the material rack and realize the material partition effect. First joint portion 12 and second joint portion 15 set up in the periphery wall of first tubular section bar 10 back to the panel edge that makes first tubular section bar 10 both sides can correspond the plug-in to first recess 13 and second recess 41, and the plane that the panel of both sides was located is parallel to each other, improves panel bearing capacity and structural dimension's stability. The first recess 13 and the second recess 41 are each capable of receiving and supporting the edges of the sheet material to improve the load carrying capacity of the sheet material and the stability of the structural dimensions.

First recess 13 sets up in first joint portion 12, and second recess 41 sets up in second joint portion 15 to make the first tubular section bar 10 that the attach fitting is connected be located the coplanar with the first tubular section bar 10 of self installation, and can fix the multi-side edge of panel, improve the convenience of panel installation. Optionally, the first tubular section 10 is made of an aluminum alloy material to form an integrally formed structure, and has high overall strength and light weight.

The first groove 13 and the second groove 41 are respectively located at two opposite sides of the first tubular profile 10 to respectively mount and fix the plates distributed at two sides of the first tubular profile 10. Optionally, the thickness of the plate mounted on the first tubular section 10 is the same, and the width of the notch of the first groove 13 is equal to the width of the notch of the second groove 41, so that the first tubular section 10 is mounted without directionality, and the convenience of mounting is improved. Optionally, if the thickness of the plate mounted on the first tubular profile 10 is not consistent, the width of the notch of the first groove 13 is greater than the width of the notch of the second groove 41, so as to adapt to different plate mounting respectively, provide flexibility of the first tubular profile 10 in use range, reduce the movement space of the plate, and improve the mounting accuracy of the plate.

Further, first joint portion 12 and second joint portion 15 interval set up in the periphery wall of first tubular section bar 10 to the direction of protrusion between them deviates from each other, so that first joint portion 12 and second joint portion 15 can independently bear panel respectively. When the symmetrical bisector of the first groove 13 is coincident with the symmetrical bisector of the second groove 41, the centers of the first plate 40 and the second plate 50 on both sides of the first tubular profile 10 are at the same height, so that the balance of the torque applied to the first tubular profile 10 is improved. Particularly, when the thicknesses of the first plate 40 and the second plate 50 on the two sides of the first tubular section 10 are the same, the plates on the two sides of the first tubular section 10 are in the same plane, so that the flatness of the bearing surface of the material rack is improved.

See fig. 5 and 6 for illustration: the structure of the first clamping portion 12 and the first groove 13 disposed in the first clamping portion 12 is substantially the same as the structure of the second clamping portion 15 and the second groove 41 disposed in the second clamping portion 15, the first clamping portion 12 and the first groove 13 disposed in the first clamping portion 12 are taken as an example for illustration, and the second clamping portion 15 and the second groove 41 can be understood by reference, and are not described herein again.

The first groove 13 is recessed from the surface of the first clamping portion 12 and extends toward the center of the tube 11, optionally, the first groove 13 is disposed on the first clamping portion 12, and the inner sidewall of the first clamping portion 12 is flat. Optionally, the inner sidewall of the first clamping portion 12 partially protrudes and protrudes toward the center of the tube 11. In an embodiment, the first groove 13 includes a first groove wall 131 and a second groove wall 132 disposed oppositely, and a groove bottom wall 133 connecting the first groove wall 131 and the second groove wall 132, and the first groove wall 131 and the second groove wall 132 protrude from the first engaging portion 12 and protrude toward the center of the tube 11. First recess 13 is from the surface of first joint portion 12 to the central line direction protrusion of body 11 to improve the degree of depth of first recess 13, then improve the area of contact of first recess 13 and first panel 40, improve the support intensity of first tubular section bar 10 to first panel 40 and second panel 50.

The first and second groove walls 131, 132 are oppositely disposed to define opposite sides of the sheet material. The distance between the first groove wall 131 and the second groove wall 132 is adapted to the thickness of the first plate 40, so as to reduce the movement space of the first plate 40 and provide support for the first plate 40.

In an embodiment, the first concave groove 13 further includes a first curved surface 134 and a second curved surface 135, and the first curved surface 134 is curved from the first groove wall 131 to the groove bottom wall 133, and forms the first concave groove 13 with the groove bottom wall 133. The second curved surface 135 is curved from the second groove wall 132 toward the groove bottom wall 133, and forms a second groove 41 with the groove bottom wall 133.

The first curved surface 134 is located at the intersection of the first groove wall 131 and the groove bottom wall 133 to adjust the stress condition of the portion and improve the installation space of the plate. Specifically, the first curved surface 134 extends in a curved manner away from the second groove wall 132 such that a concave first groove 13 is formed between the first groove wall 131 and the groove bottom wall 133. The first groove 13 can avoid forming an arc-shaped chamfer at the bottom position of the first groove 13, so that the first plate 40 can be abutted to the groove bottom wall 133, the installation size is controllable, and the moving space of the first plate 40 is small. The second curved surface 135 is disposed opposite to the first curved surface 134, which can be understood by referring to the structure and function of the first groove 13, and will not be described herein again. Optionally, the first curved surface 134 and the second curved surface 135 are symmetrically disposed, and the thickness of the first groove wall 131 is equal to that of the second groove wall 132, so as to equalize the overall stress of the first groove 13.

In an embodiment, the symmetrical bisector of the first groove 13 coincides with the center line of the pipe 11, that is, the first groove 13 is symmetrically arranged with respect to the center line of the pipe 11, the plate is assembled to the first groove 13, and the bisector of the plate substantially coincides with the bisector of the pipe 11, so as to improve the force balance between the first tubular section 10 and the plate, and the adjustability and the installation accuracy of the installation position of the first tubular section 10 and the plate in the material rack.

The first clamping portion 12 includes an arc-shaped curved surface 121, a first clamping surface 122 intersecting with one end of the arc-shaped curved surface 121, and a second clamping surface 123 intersecting with the other end of the arc-shaped curved surface 121, wherein the first clamping surface 122 intersects with the surface of the pipe body 11 and is inclined with respect to the radial direction of the pipe body 11. The second clamping surface 123 intersects the surface of the pipe body 11 and is inclined with respect to the radial direction of the pipe body 11, and the first groove 13 is recessed from the arc-shaped curved surface 121. The first engaging portion 12 extends along the length direction of the tube 11 to form a strip-shaped rib structure. The curved surface 121 is curved to reduce material consumption and improve the overall strength of the first tubular section 10. Optionally, the center line of the arc-shaped curved surface 121 coincides with the center line of the pipe body 11, so that the first clamping portion 12 is attractive in appearance and is adapted to the structure of the pipe body 11.

The first clamping surface 122 and the second clamping surface 123 constitute two side walls of the first clamping portion 12, so that the connection joint can be clamped on the first clamping surface 122 and the second clamping surface 123 respectively to connect the connection joint with the first tubular profile 10. The first clamping surface 122 and the second clamping surface 123 are inclined with respect to a radial line of the pipe body 11, so that an inwardly concave first clamping groove is formed between the first clamping surface 122 and the outer peripheral wall of the pipe body 11, and an inwardly concave second clamping groove is formed between the second clamping surface 123 and the outer peripheral wall of the pipe body 11, that is, the arc length of the arc-shaped curved surface 121 is greater than a first arc length, which is an arc length between a first intersection line where the first clamping surface 122 intersects with the pipe body 11 and a second intersection line where the second clamping surface 123 intersects with the pipe body 11. The connector is clamped in the first clamping portion 12 and buckled into the first clamping groove and the second clamping groove, so that the connector is prevented from being separated from the first clamping portion 12 along the radial direction of the pipe body 11, and the clamping strength is high.

See fig. 5 and 6 for illustration: the outer contour shape of the first clamping portion 12 is substantially the same as the outer contour shape of the second clamping portion 15, so that the matching performance of the first tubular section 10 and the connection joint is improved. Optionally, the outer contour size of the first clamping portion 12 is greater than or equal to the outer contour size of the second clamping portion 15, so as to adapt to connection joints of different specifications and sizes. When the outer contour dimension of the first clamping portion 12 is larger than the outer contour dimension of the second clamping portion 15, the first clamping portion 12 can be provided with a larger first groove 13 to adapt to plates with different thicknesses.

Further, the first tubular section 10 further includes one or more clamping bosses 14, and the clamping bosses 14 are located between the first clamping portion 12 and the second clamping portion 15. Joint boss 14 first joint portion 12 and the interval distribution of second joint portion 15 in first tubular section bar 10, wherein, the extending direction of joint boss 14 is on a parallel with the central line of body 11. The clamping bosses 14 are spaced apart from the first clamping portion 12 to further improve the overall strength of the first tubular section 10. And the clamping bosses 14 are used for connecting other connecting joints or for installing other sliding block type fittings so as to enlarge the universality of the first tubular section bar 10. In an optional embodiment, optionally, the outer wheel size of the clamping boss 14 is the same as the outer contour size of the first clamping portion 12. That is, the maximum outer size of the clamping boss 14 is the same as the outer size of the first clamping portion 12, so as to improve the universality of the connecting joint assembled by the first tubular section 10. In particular, the clamping projections 14 have the same outer contour dimensions, except that the first recess 13 need not be provided. Optionally, a relief groove 141 is disposed on an inner side wall of the clamping boss 14, so that the clamping boss 14 has a thin-wall structure and uniform thickness. Similarly, the outer wheel size of the clamping boss 14 is the same as the outer contour size of the second clamping portion 15, so that the use flexibility of the clamping boss 14 is improved.

In an optional embodiment, one or more of the clamping bosses 14, the first clamping portion 12 and the second clamping portion 15 are uniformly distributed around the center of the tube 11. Second joint portion 15, joint boss 14 and first joint portion 12 evenly distributed in body 11, the bulk strength is balanced. Optionally, two clamping bosses 14 are provided, and the first clamping portion 12, the two clamping bosses 14 and the second clamping portion 15 are disposed around the tube 11 in four equal parts.

The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed. Other structures and principles are the same as those of the prior art, and are not described in detail herein.

Claims (10)

1. A attach fitting for two side-supported panels characterized in that: the connector comprises a first clamping piece, a second clamping piece matched with the first clamping piece and a locking component connected with the first clamping piece and the second clamping piece, wherein the first clamping piece and the second clamping piece are folded to form a clamping hole, a clamping part, a first clamping plate groove and a second clamping plate groove, the central line direction of the clamping hole is intersected with the extending direction of the clamping part, the clamping hole and the clamping part are arranged oppositely, the hole end face of the clamping hole extends to the clamping part, the second clamping plate groove extends to the clamping part from the hole end face of the clamping hole, and the first clamping plate groove and the second clamping plate groove are arranged oppositely.

2. The connection joint according to claim 1, wherein: the width of the notch of the first splint groove is greater than or equal to that of the notch of the second splint groove.

3. The connection joint according to claim 1, wherein: the symmetrical bisection plane of the first splint groove is superposed with the symmetrical bisection plane of the second splint groove; or the symmetrical bisection plane of the first splint groove and the symmetrical bisection plane of the second splint groove are parallel to each other and do not coincide with each other.

4. The connection joint according to claim 1, wherein: the first clamping plate groove and the second clamping plate groove are symmetrically arranged.

5. The connection joint according to claim 4, wherein: the symmetrical bisection plane of the first clamping plate groove is superposed with the central line of the clamping hole, and the symmetrical bisection plane of the first clamping plate groove is superposed with the symmetrical bisection plane of the clamping part.

6. The connection joint according to claim 1, wherein: the clamping part is groove-shaped or through hole-shaped.

7. The connection joint according to claim 5, wherein: the first clamping piece comprises a main body part, an arc-shaped part formed by sinking the surface of the main body part, a groove part, a first notch part and a second notch part arranged at an interval with the first notch part, the central line of the arc-shaped part is intersected with the central line of the groove part, the extending direction of the first notch part is parallel to the central line of the arc-shaped part and extends from the groove part to the arc-shaped part, a first clamping plate groove is formed between the first notch part and the second clamping piece, the extending direction of the second notch part is parallel to the central line of the arc-shaped part and extends from the groove part to the arc-shaped part, a second clamping plate groove is formed between the second notch part and the second clamping piece, a clamping hole is formed between the arc-shaped part and the second clamping piece, and a clamping part is formed between the groove part and the second clamping piece.

8. The connection joint according to claim 7, wherein: the first notch portion is recessed from the edge of the main body portion to the center line direction of the arc portion and intersects with a first plane, and the first plane is a folding plane of the first clamping piece and the second clamping piece.

9. The connection joint according to any one of claims 6 to 8, wherein: the first clamping piece and the second clamping piece are symmetrically arranged.

10. A connecting device, comprising a first tubular section, a second tubular section, a first plate, a second plate, and the connecting joint of any one of claims 1 to 9, wherein the first tubular section is configured with a first groove and a third groove, the second tubular section is configured with a second groove, the first tubular section is connected to the clamping hole in an inserting manner, the first clamping member and the second clamping member clamp and fix the second tubular section, the edge of the first plate is defined by the first groove, the first clamping plate groove and the second groove, and the edge of the second plate is defined by the third groove, the second clamping plate groove and the second groove.

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