CN119419665A

CN119419665A - Cable mounting bracket

Info

Publication number: CN119419665A
Application number: CN202411970536.6A
Authority: CN
Inventors: 闫玲; 赵会娟
Original assignee: Shandong Shengtai Cable Co ltd
Current assignee: Shandong Shengtai Cable Co ltd
Priority date: 2024-12-30
Filing date: 2024-12-30
Publication date: 2025-02-11
Anticipated expiration: 2044-12-30
Also published as: CN119419665B

Abstract

The invention belongs to the technical field of cable installation, and particularly relates to a cable installation bracket which comprises a bottom plate, a cover plate and a plurality of clamping assemblies. The bottom plate is provided with assembly cavities, the cover plate is provided with through holes, and the assembly cavities are vertically opposite to the through holes. The clamping components are matched with the assembly cavities in a one-to-one correspondence mode, and comprise an inner sleeve, an outer sleeve and a second spiral ring. A plurality of pressing arms are arranged at the upper part of the cylinder body of the inner sleeve. The cylinder body is arranged in the assembly hole cavity and fixedly connected with the bottom plate. The pressing arm extends outwards in an inclined mode in the vertical direction, and a rubber cushion is fixedly arranged on the upper portion of the inner wall surface. The outer sleeve is matched with the through hole, a conical hole is formed at the lower part of the cylinder cavity, and the upper end of the outer sleeve can be matched with the second spiral ring. After the inner sleeve and the outer sleeve are matched, the lower part of the pressing arm stretches into the conical hole. When the outer sleeve moves upwards relative to the inner sleeve, the tapered hole can force the pressing arm to draw close to the axial lead side of the inner sleeve at the same time. The invention solves the problems of uneven cable clamping degree, easy sliding and easy damage to rubber.

Description

Cable mounting bracket

Technical Field

The invention relates to the technical field of cable installation and connection, in particular to a cable installation bracket.

Background

Cable clamps or net bags are often used in the prior art to mount cables to the nacelle. The cable clamping plate is used for fixedly mounting the cable, and the cable is prevented from sliding downwards relative to the clamping plate by static friction force generated between the clamping plate and the rubber of the cable. The cable net bag is fixedly installed, and the cable is prevented from sliding downwards by tightening the cable rubber under the action of gravity by means of the steel wire net sleeve.

With the continuous improvement of the power of the wind driven generator, the specification of the configured cable is increased, the weight of the cable is obviously increased, and the vibration condition generated by the fan is relatively stronger. The existing cable clamping plates and the existing net bags are used for fixing cables, clamping force of the clamping plates is insufficient, clamping stress conditions of each cable in the cable group are greatly different, uniformity is poor, the conditions that the cable clamping plates are relatively poor in stability and reliability of fixing clamping states of the cable group are easily caused, and the phenomenon that part of cables easily slide down too much occurs. And when the sliding quantity of the cable relative to the clamping plate is large, the problem that the cable rubber is severely worn easily occurs. In addition, the cable slip quantity is too large, the connecting joint of the torsion cable and the generator can be damaged, huge risks are caused to the operation of the unit, and contusions are easily caused to the cable rubber to deteriorate the insulation performance, the interference shielding performance and the like. If the thicker cable is pulled by the net bag for a long time, the cable rubber is more easily scratched, and the insulating layer is damaged, so that the cable is short-circuited.

Referring to the publication number CN115000897B, the technical scheme disclosed by the name of a cable mounting bracket is the same, and the existing cable mounting bracket is used for simultaneously fixing a plurality of cables of the same cable group by simultaneously extruding the plurality of cables through a clamping plate. The problem to be solved is that the large difference of the capability of the cables to generate sliding caused by the large difference of the tightness states of the cables which are extruded and fixed is caused to be urgent, so that the situation that a certain cable or a plurality of cables slide excessively easily due to poor consistency of cable fixing effects, and the unit is damaged is avoided.

Disclosure of Invention

The cable mounting bracket provided by the invention aims to solve the problem that the clamped state of a plurality of cables on the mounting bracket is uneven and excessive sliding of part of the cables is easy to occur by optimizing the combination fixing structure between the mounting bracket and the cables, and also solves the problem that the rubber of the outer layer of the cables is easy to be damaged when the sliding amount of the cables relative to the mounting bracket is large, so that a firm and reliable clamping effect is achieved on the plurality of cables arranged on the mounting bracket.

The technical scheme adopted by the invention for solving the technical problems is that the cable mounting bracket comprises a bottom plate, a cover plate and a plurality of clamping components. The bottom plate is provided with a plurality of assembly holes, and the cover plate is provided with a plurality of through holes. After the cover plate is fixed on the bottom plate, the assembly cavities are in one-to-one correspondence with the through holes and are opposite to each other vertically.

The clamping components are matched with the assembly cavities one by one and comprise an inner sleeve, an outer sleeve and a second spiral ring.

A plurality of pressing arms are formed at the upper part of the cylinder body of the inner sleeve and distributed at intervals around the circumferential direction. The cylinder body is correspondingly matched with the assembly hole cavity, and the cylinder body is fixedly connected with the bottom plate.

The pressing arm extends upwards along the vertical direction relative to the cylinder body and inclines outwards along the radial direction, so that the inner side surface and the outer side surface of the pressing arm are respectively formed into an inner wedge surface and an outer wedge surface. In this way, the inner wedge surfaces of the pressing arms are distributed on the same conical surface/conical ring cavity, and the outer wedge surfaces of the pressing arms are distributed on the same conical surface/conical ring surface. Therefore, the inner wedge surface and the outer wedge surface are arc-shaped curved surfaces. In addition, the upper part of the inner wedge surface is also fixedly provided with a rubber cushion.

The lower end of the outer sleeve passes through the through hole and extends towards the upper end face direction of the bottom plate, and the upper end extends upwards to the outside of the through hole. The lower part of the cylinder cavity of the outer sleeve is provided with a conical hole with a necking end facing downwards. The upper part of the outer peripheral surface of the outer sleeve is provided with an external thread surface which is correspondingly matched with the second spiral ring, so that the second spiral ring is fixedly connected with a section of the outer sleeve extending above the through hole through a thread structure.

The outer diameter of the second spiral ring is larger than the inner diameter of the through hole. The second spiral ring can be screwed up to pull the outer sleeve to move along the vertical direction, so that the upper end of the outer sleeve is enabled to extend upwards relative to the through hole on the cover plate continuously.

After the inner sleeve is placed in the cylinder cavity of the outer sleeve, the lower part of the pressing arm can extend into the conical hole, and a profile contact matching relationship can be formed between the outer wedge surface and the inner wall of the conical hole. When the outer sleeve moves upwards relative to the cover plate, the outer sleeve also moves upwards relative to the inner sleeve, and the upper end opening of the conical hole gradually approaches to the upper end of the pressing arm, so that the inner wall of the conical hole can press the pressing arm to be close to the axial lead direction of the inner sleeve, and the inner diameter of a conical ring cavity formed by connecting a plurality of inner wedge surfaces in series around the circumferential direction is gradually reduced.

Optionally, the clamping assembly further comprises a first spiro ring. An internal thread surface is formed at the upper end of the shaft hole of the first spiral ring. The second shaft hole can be set as a light beam hole and can ensure that a cable passes through. A radial flange is formed at a lower portion of the outer peripheral surface of the first helicoid ring. The radial flange has an outer diameter greater than an inner diameter of the lower port of the mounting bore.

An external thread section is formed at the lower part of the outer peripheral surface of the cylinder body. The upper end of the first spiral ring extends into the assembly hole cavity and is matched with the external thread section, and the cylinder body is fixedly connected with the bottom plate, so that the first spiral ring can prevent the inner sleeve from moving upwards relative to the bottom plate.

The first shaft hole on the cylinder body can be in butt joint with the second shaft hole on the first spiral ring to form a hole cavity which is communicated in the vertical direction, and a part of a hole channel through which a power supply cable arranged on the clamping assembly passes is formed.

Optionally, the clamping assembly further comprises a cartridge cap. An internal thread counter bore is formed on the bottom surface of the cap cavity of the barrel cap, and an axial through hole for the cable to pass through is formed on the bottom wall of the internal thread counter bore. An elastic ring is fixedly embedded on the inner wall of the axial through hole. The second spiral ring can extend into the cap cavity, and the internal thread counter bore can be matched with the external thread surface, so that the barrel cap and the outer sleeve are fixedly connected into a whole.

Alternatively, an elastically deforming portion is formed at the root portion of the pressing arm. The elastic deformation part can enable the pressing arm to generate elastic deformation at the root part of the pressing arm, so that the resistance when the pressing arm is pushed to move is reduced, the rubber pad can be relatively easily adjusted to be in a state of being fully contacted with the rubber of the cable, the contact effect between the pressing arm and the cable is improved, the distribution state of radial pressure of the pressing arm acting on the cable is improved, the stability of clamping and fixing effects is improved, and the occurrence of the slipping condition of the cable is better restrained.

Optionally, a slot is formed in the inner wedge surface. One side end face of the rubber cushion is fixed in the strip-shaped groove, and the other side end face of the rubber cushion protrudes/exposes outwards relative to the inner wedge surface, so that proper elastic deformation can be generated in the process of pressing and contacting the rubber cushion and the cable.

In the present invention, the rubber pad is preferably made to have a good rigidity in the axial direction, a strong supporting ability, and at the same time, to be capable of being suitably elastically deformed relatively easily in the radial direction. Therefore, the groove and rib structures which can improve the supporting rigidity in the axial direction of the rubber pad and can not adversely affect the elastic deformation in the radial direction of the rubber pad can be distributed on the end surface of the rubber pad facing the cable.

Optionally, an annular flange is formed on an end face of the cover plate facing the bottom plate and at a periphery of the lower port of the through hole. The inner diameter of the annular flange is not smaller than the inner diameter of the through hole.

An axial flange is formed on the lower end face of the outer sleeve. The inner diameter of the axial flange is greater than the inner diameter of the port on the mounting bore. An annular countersink is formed in the base plate at the periphery of the upper port corresponding to the mounting bore. The lower end of the axial flange can be maintained in a state of being inserted into the annular countersink.

Optionally, a shaft shoulder is formed at a lower portion of the outer circumferential surface of the outer sleeve. The outer diameter at the root of the shoulder is not smaller than the outer diameter of the axial flange. The inner diameter of the annular flange is larger than the inner diameter of the through hole.

The lower part of the outer sleeve is sleeved with an elastic piece, the elastic piece is arranged in the annular flange, and the upper end and the lower end of the elastic piece are respectively contacted with the end face of the shaft shoulder part and the upper end face of the bottom plate. The elastic piece can be a spring or an elastic sleeve.

After the cover plate is fixed on the bottom plate, the elastic element can be kept in a compressed state, and the elastic element can exert elastic thrust on the shaft shoulder part to keep in a state of pushing the outer sleeve upwards.

Optionally, a plurality of radial slots distributed alternately around the circumferential direction are arranged on the upper end surface of the second spiral ring. The clamping assembly further includes a wrench that is correspondingly matched to the second spiro ring. The wrench comprises an arc-shaped arm, a plurality of protruding teeth distributed on the concave surface of the arc-shaped arm, and a handle part fixed on the arc-shaped arm.

When the concave surface of the arc arm leans against the side wall of the second spiral ring, the plurality of protruding teeth can be respectively inserted into the plurality of radial slots.

The cable mounting bracket has the beneficial effects that through improving the fixing and combining structure between the bracket and the cables, each cable can be effectively ensured to be firmly and reliably kept in a relatively fixed state with the mounting bracket, the problems that a plurality of cables matched with the mounting bracket are inconsistent and uneven in clamping and fixing conditions, and meanwhile, part of cables are easy to slide downwards relative to the bracket, and the bracket is easy to damage rubber of the cables in the cable sliding process are also effectively solved.

Drawings

FIG. 1 is a schematic view of the present invention in use.

Fig. 2 is a schematic cross-sectional view of the base plate and cover plate mated with the clamping assembly.

Fig. 3 is a schematic cross-sectional view of the inner sleeve.

Fig. 4 is a schematic top view of the inner sleeve.

Fig. 5 is a schematic cross-sectional view of the outer sleeve.

Fig. 6 is a schematic top view of the outer sleeve.

Fig. 7 is a schematic view of the cable mated with the clamping assembly.

Fig. 8 is a schematic view of a split structure of the clamping assembly.

Fig. 9 is a schematic top view of the base plate.

Fig. 10 is a schematic top view of the second spiro ring as mated with a configured wrench.

In the drawing, 100 cables, 10 bottom plates, 11 assembly cavities, 111 annular countersink, 12 flange plates, 13 vertical plates, 14 threaded holes, 20 cover plates, 21 through holes, 22 annular flanges, 30 inner sleeves, 31 barrel bodies, 311 first shaft holes, 312 external thread sections, 32 press arms, 321 outer wedge surfaces, 322 inner wedge surfaces, 323 elastic deformation parts, 33 rubber gaskets, 40 first spiral rings, 41 second shaft holes, 42 inner thread surfaces, 43 radial flanges, 50 outer sleeves, 51 conical holes, 52 outer thread surfaces, 53 axial flanges, 54 shaft shoulders, 55 springs, 60 second spiral rings, 61 radial slots, 62 spanners, 621 arc-shaped arms, 622 protruding teeth, 623 handles, 70 barrel caps, 71 cap cavities, 72 inner thread counter bores and 73 elastic rings.

Detailed Description

The structures, proportions, sizes, etc. shown in the drawings are shown only in connection with the disclosure of the present invention, and are not intended to limit the scope of the invention, which is defined by the claims, but rather by the terms of modification, variation of proportions, or adjustment of sizes, without affecting the efficacy or achievement of the present invention, should be understood as falling within the scope of the present invention. Also, the terms such as "upper", "lower", "front", "rear", "middle", and the like are used herein for descriptive purposes only and are not intended to limit the scope of the invention for which the invention may be practiced or for which the relative relationships may be altered or modified without materially altering the technical context.

A cable mounting bracket as shown in fig. 1-9 includes a base plate 10, a cover plate 20, and a plurality of clamping assemblies. The clamping assembly includes an inner sleeve 30, a first toroid 40, an outer sleeve 50, a second toroid 60, and a cartridge cap 70.

A plurality of assembly cavities 11 are distributed on the bottom plate 10, and a plurality of through holes 21 are distributed on the cover plate 20.

After the cover plate 20 is fixed on the bottom plate 10, the assembly cavities 11 are matched with the through holes 21 in a one-to-one correspondence manner and are opposite to each other vertically. As shown in fig. 9, the bottom plate 10 is provided with a plurality of threaded holes 14, each threaded hole 14 is correspondingly provided with a bolt or a stud, and the cover plate 20 is fixed on the upper portion of the bottom plate 10 by the bolts or the studs, so that the two are connected into a whole. The base plate 10 is fixedly connected to an external member so that the cable mounting bracket is fixed at a high position.

A flange plate 12 is formed on the outer side surface of the base plate 10, and the base plate 10 is fixed to an external facility or member by means of the flange plate 12, and the base plate 10 can be maintained in a flat state. The specific connection structure between the base plate 10 and the external facilities or components can be flexibly set by those skilled in the art according to the actual conditions of the construction site with reference to the prior art, and is not a technical innovation of the present invention, so that the description thereof will not be repeated in the present invention.

A plurality of pairs of vertical plates 13 may be provided on the upper end surface of the base plate 10 such that the pair of vertical plates 13 are opposite left and right or front and rear, and are close to the edge of the base plate 10. After the cover plate 20 is placed on the upper portion of the base plate 10, at least the lower portion of the side wall of the cover plate 20 can be sandwiched between the standing plates 13. By providing the vertical plates 13, the fixing connection structure between the cover plate 20 and the bottom plate 10 can be improved, the capability of resisting transverse shearing force can be improved, and the transverse rigidity and strength of the whole mounting bracket can be improved.

The clamping assemblies are matched with the assembly cavities 11 in a one-to-one correspondence. The cable 100 passes through the mounting bore 11 and the through hole 21 in a vertical direction through a vertical channel formed in the clamping assembly. The clamping assembly is used for connecting the cables 100 with the bottom plate 10 and the cover plate 20 to form a whole, so that the clamping and fixing of the cable groups are realized, and each cable 100 in the cable groups can be prevented from sliding down, as shown in fig. 1 and 7.

Eight pressing arms 32 are arranged at the upper part of the cylinder body 31 of the inner sleeve 30 at intervals around the circumference. After the tube body 31 extends into the assembly hole cavity 11 and is correspondingly matched with the assembly hole cavity 11, the tube body 31 and the bottom plate 10 can be fixedly connected together.

The cartridge body 31 and the mounting bore 11 may be fixedly connected directly by a threaded structure. As can also be seen in fig. 1 to 8, the cartridge body 31 is fixedly restrained in the mounting bore 11 by the first screw ring 40. Specifically, an external thread section 312 is formed at the lower portion of the outer peripheral surface of the cylindrical body 31, and the upper end of the first screw 40 is fitted into the external thread section 312 after being inserted into the fitting bore 11. Meanwhile, a radial flange 43 is formed at a lower portion of the outer circumferential surface of the first screw ring 40, and an outer diameter of the radial flange 43 is made larger than an inner diameter of the lower port of the fitting bore 11. After the internally threaded surface 42 formed at the upper port of the first threaded ring 40 is matingly engaged with the externally threaded section 312, the inner sleeve 30 is prevented from moving upwardly relative to the base plate 10 and the cover plate 20, thereby fixedly restraining the cartridge body 31 within the mounting bore 11.

The inner diameter of the first shaft hole 311 on the cylinder body 31 is identical to the inner diameter of the second shaft hole 41 on the first spiral ring 40, and the first shaft hole 311 is preferably a light beam hole, and the second shaft hole 41 is preferably a light beam hole. The first shaft hole 311 on the cylinder body 31 and the second shaft hole 41 on the first spiral ring 40 can be butted to form a cavity/channel penetrating along the vertical direction. During installation, the cable 100 can smoothly pass through the first shaft hole 311 and the second shaft hole 41 to extend and arrange in the vertical direction. Obviously, the inner diameter of the internal thread surface 42 is larger than the inner diameter of the second shaft hole 41.

The pressing arm 32 extends upward in the vertical direction with respect to the cylinder body 31 and is inclined radially outward, i.e., the pressing arm 32 extends vertically upward and is inclined outward with respect to the cylinder body 31. The inner and outer sides of the pressing arm 32 are respectively formed into an inner wedge surface 322 and an outer wedge surface 321, and the inner wedge surfaces 322 are distributed on the same conical ring surface, and the outer wedge surfaces 321 are distributed on the same conical ring surface. The length and number of the pressing arms 32 need to be reasonably designed according to the weight, outer diameter, material, etc. corresponding to the type of the cable 100.

As is clear from the above description that the plurality of inner wedge surfaces 322 are distributed on the same conical ring surface (i.e. on the conical cylindrical surface), and the plurality of outer wedge surfaces 321 are distributed on the same conical ring surface (i.e. on the conical cylindrical surface), the radial cross sections (projections) of the inner wedge surfaces 322 and the outer wedge surfaces 321 are each arc-shaped, and are inclined radially outward with respect to the axis line in the axial extending direction. Thus, the inner wedge surface 322 and the outer wedge surface 321 are both curved surfaces. In other words, it is understood that a plurality of channels are alternately arranged on the tapered ring body around the circumferential direction, and the channels extend in the axial direction, so that a plurality of press arms 32 can be obtained by dividing the tapered ring body, and then the inner wedge surfaces 322 on the press arms 32 are portions on the inner circumferential surface of the tapered ring body, and the outer wedge surfaces 321 on the press arms 32 are portions on the outer circumferential surface of the tapered ring body.

A rubber pad 33 is fixedly provided on the upper portion of the inner wedge surface 322. The rubber pad 33 may be made of a material such as rubber, which has anti-slip, wear-resistant, and insulating properties and is capable of being elastically deformed. The thickness of the rubber pad 33 is generally not more than 15mm, preferably controlled in the range of 4mm to 8 mm. A bar-shaped groove may be disposed on the inner wedge surface 322, and one side end surface of the rubber pad 33 is fixedly connected with the bar-shaped groove, the other side end surface protrudes outwards relative to the inner wedge surface 322, and one side end surface of the rubber pad 33 protruding outwards relative to the inner wedge surface 322 may contact with the rubber of the cable 100. When the strip-shaped groove is provided, it is necessary to increase the thickness of the rubber pad 33 so that the thickness thereof does not exceed 20mm.

By arranging the strip-shaped groove, and fixing one side end face of the rubber pad 33 in the strip-shaped groove, and protruding the other side end face to the outside, the stability of the fixing position of the rubber pad 33 on the pressing arm 32 can be increased, the rigidity of the rubber pad 33 in the axial direction is improved, and the rubber pad 33 is not easy to generate excessive (axial) sliding dislocation relative to the inner wedge surface 322 when being subjected to the downward pulling force from the cable 100.

The lower end of the outer sleeve 50 passes through the through hole 21 and extends toward the upper end surface of the bottom plate 10, and the upper end extends out of the through hole 21. The lower part of the cylinder cavity of the outer sleeve 50 is provided with a conical hole 51 with a necking end facing downwards. An external thread surface 52 corresponding to and matching with the second spiral ring 60 is formed at the upper portion of the outer circumferential surface of the outer sleeve 50. The second spiral ring 60 has an outer diameter larger than an inner diameter of the through hole 21.

After the inner sleeve 30 is placed in the barrel cavity of the outer sleeve 50, the lower portion of the pressing arm 32 can extend into the tapered bore 51 and can form a profile contact mating relationship between the outer wedge surface 321 and the inner wall of the tapered bore 51. When the second screw ring 60 is screwed to drive the outer sleeve 50 to move upwards relative to the cover plate 20, the outer sleeve 50 also moves upwards relative to the inner sleeve 30, so that the upper port of the tapered hole 51 gradually leans against the upper end/free end of the pressing arm 32, and during this time, the tapered hole 51 can push each pressing arm 32 to approach towards the axial line direction (of the inner sleeve 30) at the same time, so that the inner diameter of the tapered ring surface on which each inner wedge surface 322 is distributed gradually becomes smaller.

The cable 100 is arranged to extend in a vertical direction after passing through the inner sleeve 30. When the pressing arms 32 move toward the axial line direction of the inner sleeve 30, the inclination angles of the pressing arms 32 relative to the vertical direction are gradually reduced, so that the rubber pad 33 can be forced to press against the rubber of the cable 100, and finally the rubber pad 33 and the rubber of the cable 100 are tightly pressed and contacted, a larger contact area can be formed between the pressing arms 32 and the rubber of the cable 100, and larger static friction resistance is generated, so that the cable 100 is held tightly in the inner sleeve 30.

Compared with the existing clamping plate fixing mode, the clamping assembly designed by the invention is easier to adjust and fasten the cohesion force of each clamping assembly on the cable 100, and when the clamping states of each clamping assembly are adjusted and controlled one by one, the clamping assemblies are not influenced, independent adjustment and control can be realized, and the installation and the maintenance are convenient.

In the scheme of the invention, the rubber pad 33 fixed on the pressure arm 32 is directly contacted with the rubber of the cable 100, and the rubber pad 33 can generate a certain degree of elastic deformation when the cable 100 is tightly held by the rubber pad 33, so that a large contact surface can be formed between the pressure arm 32 and the cable 100, and the pressure in the radial direction can be stably maintained, thereby remarkably improving the static friction resistance between the inner sleeve 30 and the rubber of the cable 100, ensuring the stability and the reliability of the static friction resistance, realizing the purpose of effectively inhibiting the cable 100 from sliding down relative to the mounting bracket, effectively preventing the cable 100 from sliding down relative to the mounting bracket, and in addition, in the scheme of the invention, the position where the mounting bracket is fixedly combined with the cable 100, each cable 100 is singly matched with one clamping assembly/one inner sleeve 30 correspondingly, compared with the prior mounting bracket, the form that a plurality of cables 100 are clamped at the same time, the static friction resistance between the inner sleeve 30 and the cable 100 can be better ensured, the stability and the reliability of the static friction resistance can be ensured, and the situation that the cable 100 can be effectively prevented from sliding down relative to the mounting bracket is greatly improved, and the safety of the cable 100 is guaranteed, and the safety of the generator set is greatly improved, and the safety of the generator is improved.

To facilitate the relatively easy change of the inclination angle of the pressing arm 32 with respect to the vertical direction, and at the same time to avoid the breakage of the pressing arm 32 or the generation of excessive stress inside. An elastically deformable portion 323 is formed at the root of the pressing arm 32. The elastic deformation portion 323 can enable the pressing arm 32 to be easily elastically deformed at the root portion of the pressing arm, so that resistance of screwing the second spiral ring 60 to enable the outer sleeve 50 to move upwards relative to the inner sleeve 30 can be reduced, assembly difficulty can be reduced, the pressing arm 32 can be fully close to one side of the axial lead of the inner sleeve 30, and the rubber pad 33 and the outer wall surface of the cable 100 can be adjusted to be in a fully contacted state.

An internally threaded counterbore 72 is formed on the bottom surface of the cap cavity 71 of the cartridge cap 70, and an axial through-hole through which the cable 100 passes is formed on the bottom wall of the internally threaded counterbore 72. An elastic ring 73 is fixedly embedded on the inner wall of the axial through hole. When the cable 100 passes through the axial through hole, the outer wall of the cable 100 can contact with the elastic ring 73, and a sealing structure is formed between the opposite peripheral surfaces of the cable 100 and the elastic ring, so that the rubber pad 33 is protected from rain erosion.

The second screw 60 can extend into the cap cavity 71, and the internally threaded counterbore 72 can mate with the externally threaded surface 52 to fixedly connect the cartridge cap 70 to the outer sleeve 50 as a unit.

By arranging the barrel cap 70, on one hand, the cable 100 and the upper part of the clamping assembly can be sealed correspondingly and matched, the function of protecting the contact surface of the rubber pad 33 and the cable 100 can be achieved, on the other hand, the function of locking the outer sleeve 50 can be achieved, the clamping assembly can still effectively maintain the limiting function on the state of the inner sleeve 30 after being subjected to vibration for a long time, and the stability and reliability of the clamping assembly on the clamping and fixing effect of the cable 100 can be improved. It should be noted that, after the internal thread counterbore 72 is provided, the axial extension of the external thread surface 52 needs to be appropriately increased to ensure that the upper end of the external thread surface 52 can partially protrude above the second spiral ring 60 after the second spiral ring 60 pulls the outer sleeve 50 to move upward by a sufficient stroke, so that a portion of the protruding external thread surface 52 matches with the internal thread counterbore 72.

An annular flange 22 is formed on the end face of the cover plate 20 facing the bottom plate 10, and at the periphery of the lower port of the through hole 21. The inner diameter of the annular flange 22 is not smaller than the inner diameter of the through hole 21. The cover plate 20 is supported and fixed relatively above the base plate 10 by providing the annular flange 22 and bringing the annular flange 22 into contact with the upper end surface of the base plate 10. On the one hand, the stability and reliability of the relative fixing position of the cover plate 20 and the bottom plate 10 in the vertical direction can be ensured, the support strength is enough, the deformation and dislocation cannot be caused, and on the other hand, the thickness of the plate body of the bottom plate 10 and/or the thickness of the plate body of the cover plate 20 can be reduced, so that the whole weight of the mounting bracket is obviously reduced.

An axial flange 53 is formed on the lower end face of the outer sleeve 50. The inner diameter of the axial flange 53 is greater than the inner diameter of the port on the mounting bore 11. An annular countersink 111 is formed on the bottom plate 10 and corresponds to the upper port periphery of the fitting bore 11. The lower end of the axial flange 53 can be maintained in a state of being inserted into the annular recess 111. By providing the axial flange 53 on the outer sleeve 50 and keeping the axial flange 53 in a state of being inserted into the annular countersink 111 at all times, the ability of the mounting bracket to resist lateral loads can be improved.

As shown in fig. 8, a shaft shoulder 54 is formed at a lower portion of the outer circumferential surface of the outer sleeve 50. The outer diameter at the root of the shoulder 54 corresponds to the outer diameter of the axial flange 53. The inner diameter of the annular flange 22 is larger than the inner diameter of the through hole 21.

A spring 55 (i.e., an elastic member) is fitted around the lower portion of the outer sleeve 50, and the spring 55 can be placed in the annular flange 22 with both ends of the spring 55 being held in contact with the end face of the shoulder 54 and the upper end face of the bottom plate 10, respectively. After the cover plate 20 is fixed to the base plate 10, the spring 55 can be kept in a compressed state, and the spring 55 can exert an elastic pushing force upward in the vertical direction on the shoulder 54.

In the installation, only the base plate 10 and the cover plate 20 are required to be pre-connected in the early stage. After the outer sleeve 50 has been moved upward sufficiently to allow the pressure arms 32 to fully grip the cable 100, the connection between the base plate 10 and the cover plate 20 is tightened, causing the cover plate 20 to be pressed tightly against the base plate 10. The position of the second screw ring 60 is then adjusted such that the second screw ring 60 presses against the upper end face of the cover plate 20.

After the spring 55 (or the elastic member) is provided, an upward elastic pushing force can be kept applied to the outer sleeve 50, so that the outer sleeve 50 can be urged to have an upward movement tendency (elastic kinetic energy). When the cable 100 is swung or swung under the influence of external factors, the falling force of the cable 100 reacting on the inner sleeve 30 can fluctuate, during which the elastic thrust of the spring 55 can follow the change, and the influence of the fluctuating falling force on the state of the inner sleeve 30 is reduced by means of the damping characteristic, so that the vibration intensity transmitted to the mounting bracket and the clamping assembly is attenuated, the damping and vibration-resisting effects are achieved, and the stability and the reliability of the fixing effect of the clamping assembly on the cable 100 are improved.

As shown in fig. 10, a plurality of radial slots 61 are provided on the upper end surface of the second spiral ring 60, and are alternately distributed around the circumferential direction. The clamping assembly further includes a wrench 62 that correspondingly mates with the second threaded ring 60. The wrench 62 includes an arc-shaped arm 621, three protruding teeth 622 distributed on the concave surface of the arc-shaped arm 621, and a shank 623 fixed to the arc-shaped arm 621. The shank 623 is either a straight shank extending outwardly (extending obliquely to the vertical) relative to the arcuate arm 621, or an L-shaped shank or the like.

When the concave surface of the arc-shaped arm 621 is abutted against the side wall of the second spiral ring 60, the three protruding teeth 622 can be respectively inserted into the three radial slots 61, and at this time, the handle 623 is operated to drive the second spiral ring 60 to rotate.

After the wrench 62 and the radial slot 61 are provided, the screwing operation of the second spiral ring 60 can be conveniently and rapidly completed, so that the second spiral ring 60 can sufficiently lift the outer sleeve 50 upwards, the tapered hole 51 on the outer sleeve 50 can sufficiently promote the pressing arm 32 on the inner sleeve 30 to hold the cable 100 tightly, and each cable 100 in the cable group can be sufficiently fixed on the mounting bracket.

After the wrench 62 is arranged, final fastening of each clamping assembly can be conveniently, efficiently and fully realized in operation, the dilemma that the clamping assemblies are inconvenient to implement and fasten because the relative arrangement positions of the cables 100 in the cable group are denser can be effectively overcome, and the clamping fixing effect of each clamping assembly on each cable 100 is fully ensured to finally fall to the ground.

The bottom plate 10 and the cover plate 20 may each be a plate structure formed by assembling a plurality of strip-shaped bodies. (1) A half cavity (half cavity cut along the axial direction, the same applies hereinafter) of the assembly cavity 11 and a half cavity of the annular countersink 111 are formed on the strip-shaped body assembled into the bottom plate 10 and on the opposite surface between the adjacent two strips. (2) A half cavity of the through hole 21 and a half ring of the annular flange 22 are formed on the strip-shaped body assembled into the cover plate 20 and on the opposite surface between the two adjacent strip-shaped bodies. Similarly, the inner sleeve 30, the first spiral ring 40, the outer sleeve 50, the second spiral ring 60, and the cap 70 may be formed entirely of two halves, or partially of two halves, with the remainder being formed as a unitary body. For example, the inner sleeve 30 may be a cylindrical body formed by fixedly assembling two semi-cylindrical bodies, the first spiral ring 40 may be a ring body formed by fixedly assembling two semi-cylindrical bodies, or the like.

The component and the element related by the invention are made of composite materials or nonferromagnetic metal materials. For example, nylon (modified nylon), fiber reinforced plastic and other composite materials, aluminum alloy and other nonferromagnetic metal materials, the choice of the component materials should be standard to avoid the eddy current effect.

The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. The present invention is capable of modifications in the foregoing embodiments, as obvious to those skilled in the art, without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims

1. The cable mounting bracket is characterized by comprising a bottom plate (10), a cover plate (20) and a plurality of clamping assemblies;

The bottom plate (10) is provided with a plurality of assembly cavities (11) in a distributed manner, and the cover plate (20) is provided with a plurality of through holes (21) in a distributed manner, wherein after the cover plate (20) is fixed on the bottom plate (10), the assembly cavities (11) are in one-to-one correspondence with the through holes (21) and are matched up and down relatively;

the clamping components are matched with the assembly cavities (11) in a one-to-one correspondence manner;

The clamping assembly comprises an inner sleeve (30), an outer sleeve (50) and a second spiral ring (60);

The upper part of a cylinder body (31) of the inner sleeve (30) is provided with a plurality of pressing arms (32) which are distributed at intervals around the circumferential direction, the cylinder body (31) is correspondingly matched with the assembly cavity (11) and fixedly connected with the bottom plate (10), the pressing arms (32) vertically extend upwards relative to the cylinder body (31) and incline outwards along the radial direction, the inner side surface and the outer side surface of the pressing arms (32) are respectively formed into an inner wedge surface (322) and an outer wedge surface (321), and a rubber pad (33) is fixedly arranged on the upper part of the inner wedge surface (322);

The lower end of the outer sleeve (50) passes through the through hole (21) and then extends towards the upper end face of the bottom plate (10), and the upper end extends upwards to the outside of the through hole (21), a conical hole (51) with a downward necking end is formed at the lower part of a cylinder cavity of the outer sleeve (50), and an external thread surface (52) which is correspondingly matched with the second spiral ring (60) is formed at the upper part of the peripheral surface of the outer sleeve (50);

the outer diameter of the second spiral ring (60) is larger than the inner diameter of the through hole (21);

The inner sleeve (30) is arranged in the outer sleeve (50), the lower part of the pressing arm (32) extends into the conical hole (51) and forms a surface contact matching relationship between the outer wedge surface (321) and the inner wall of the conical hole (51), and when the outer sleeve (50) moves upwards relative to the inner sleeve (30), the conical hole (51) can push the pressing arm (32) and draw the axial lead of the inner sleeve (30) inwards.

2. The cable mounting bracket according to claim 1, wherein the clamping assembly further comprises a first screw ring (40), an inner thread surface (42) is formed at the upper end of a shaft hole II (41) of the first screw ring (40), a radial flange (43) is formed at the lower part of the outer peripheral surface of the first screw ring (40), and the outer diameter of the radial flange (43) is larger than the inner diameter of the lower port of the assembly hole (11);

An external thread section (312) is formed at the lower part of the outer peripheral surface of the cylinder body (31), and the upper end of the first spiral ring (40) extends into the assembly cavity (11) and is matched with the external thread section (312) so as to fix the cylinder body (31) and the bottom plate (10) together.

3. The cable mounting bracket according to claim 1, wherein the clamping assembly further comprises a barrel cap (70), wherein an internal thread counter bore (72) is formed on the bottom surface of a cap cavity (71) of the barrel cap (70), and an axial through hole through which the cable (100) passes is formed on the bottom wall of the internal thread counter bore (72);

The second screw ring (60) can extend into the cap cavity (71) and the internally threaded counterbore (72) can mate with the externally threaded surface (52).

4. The cable mounting bracket according to claim 1, wherein an elastically deforming portion (323) is formed at a root portion of the pressing arm (32), and the elastically deforming portion (323) is capable of elastically deforming the pressing arm (32) at the root portion thereof.

5. The cable mounting bracket according to claim 1, wherein a bar-shaped groove is formed on the inner wedge surface (322), one side end surface of the rubber pad (33) is fixedly provided in the bar-shaped groove, and the other side end surface protrudes outward with respect to the inner wedge surface (322).

6. The cable mounting bracket according to any one of claims 1 to 5, wherein an annular flange (22) is formed on an end face of the cover plate (20) facing the bottom plate (10) and at a periphery of the lower port of the through hole (21), the annular flange (22) having an inner diameter not smaller than an inner diameter of the through hole (21);

an axial flange (53) is formed on the lower end face of the outer sleeve (50), the inner diameter of the axial flange (53) is larger than the inner diameter of the upper port of the assembly cavity (11), an annular countersink (111) is formed on the bottom plate (10) at the periphery of the upper port corresponding to the assembly cavity (11), and the lower end of the axial flange (53) can be kept in a state of being inserted into the annular countersink (111).

7. The cable mounting bracket according to claim 6, wherein a shoulder portion (54) is formed at a lower portion of an outer peripheral surface of the outer sleeve (50), an outer diameter at a root portion of the shoulder portion (54) is not smaller than an outer diameter of the axial flange (53), an inner diameter of the annular flange (22) is larger than an inner diameter of the through hole (21);

An elastic piece is sleeved at the lower part of the outer sleeve (50), is arranged in the annular flange (22) and enables the upper end and the lower end of the elastic piece to be respectively contacted with the end face of the shaft shoulder part (54) and the upper end face of the bottom plate (10);

After the cover plate (20) is fixed on the bottom plate (10), the elastic piece can be kept in a compressed state, and the elastic piece can apply elastic thrust upwards along the vertical direction on the shaft shoulder part (54).

8. The cable mounting bracket according to claim 1, wherein a plurality of radial slots (61) are arranged on the upper end surface of the second spiral ring (60) and distributed at intervals around the circumferential direction;

the wrench (62) comprises an arc-shaped arm (621), a plurality of protruding teeth (622) distributed on the concave surface of the arc-shaped arm (621), and a handle (623) fixed on the arc-shaped arm (621);

the plurality of teeth (622) are insertable into the plurality of radial slots (61) when the concave surface of the arcuate arm (621) is against the side wall of the second toroid (60).