CN217205727U - Central lock device - Google Patents

Abstract

The utility model discloses a center lock device, which comprises a base, an upper rotating sliding sleeve, a lower rotating sliding sleeve and a center rod. The upper rotating sliding sleeve is fixed with the base, and the lower rotating sliding sleeve is sleeved and connected to the upper rotating sliding sleeve. Relatively rotatable, the side wall of the lower rotating sliding sleeve is provided with a chute along the relative rotation direction of the upper rotating sliding sleeve and the lower rotating sliding sleeve. The rod extends into the lower rotating sliding sleeve along the base and the upper rotating sliding sleeve; the utility model adopts the central rod with elastic parts, the upper rotating sliding sleeve, the lower rotating sliding sleeve, and the through holes for extruding or releasing the elastic parts, the accommodating The groove enables the structure to be unlocked by rotating and pulling down, and the upper rotating sliding sleeve and the base are integrally formed in the utility model, which reduces the number of parts, facilitates assembly, is durable, is convenient to use, operates smoothly and safely, and avoids the danger of hand clamping.

Description

A central locking device

technical field

The utility model relates to the field of tents, in particular to a center lock device.

Background technique

The folding tent can be unfolded when in use, and can be folded and contracted when not in use, has the advantages of sunshade and rain protection, and is easy to carry, so it is widely used in daily life such as outdoor exhibitions, product promotion and tourism and leisure. Folding tents can be quickly unfolded and fixed and folded and stored through the center lock. The traditional center lock has a complex structure, the unfolding and folding storage procedures are cumbersome, and the operation is more troublesome, which brings certain inconvenience to the user.

Utility model content

In order to solve the above technical problems, the technical solution provided by the present utility model is: a center lock device, comprising a base, an upper rotating sliding sleeve, a lower rotating sliding sleeve and a center rod, the upper rotating sliding sleeve and the base are fixed as a whole, so The lower rotating sliding sleeve is sleeved with the upper rotating sliding sleeve and can be rotated relative to each other. The limit rod in the rotating sliding sleeve, the central rod extends into the lower rotating sliding sleeve along the base and the upper rotating sliding sleeve; a first elastic part is arranged on one side of the bottom of the center rod, and the base, the upper rotating sliding sleeve, A first through hole, a second through hole and a third through hole for accommodating the center rod are sequentially arranged in the lower rotating sliding sleeve, and a first elastic member accommodating groove is set outward on one side of the third through hole, and the first elastic member It pops out from the accommodating groove to lock the central rod with the upper and lower rotating sliding sleeves. When the lower rotating sliding sleeve rotates so that the side wall of the accommodating groove squeezes the first elastic member and retracts into the central rod, the central rod and the upper rotating sliding sleeve are rotated. The sliding sleeve and the lower rotating sliding sleeve are unlocked.

Further, a limit ring is arranged on the inner bottom surface of the lower rotating sleeve, a first limit plate is arranged on one side of the limit ring and is opposed to the bottom surface of the upper rotating sleeve, and a second limit is arranged at the bottom of the upper rotating sleeve. A second elastic member is arranged between the first limiting plate and the second limiting plate.

Further, the second elastic component is a spring, a bump is provided on the first limiting plate, one end of the spring is clamped on the bump, and the other end is in contact with the second limiting plate.

Further, the limit rod includes an insertion rod inserted into the upper rotating sliding sleeve and a sliding block arranged in the sliding groove, and the upper rotating sliding sleeve is provided with a connection connecting the inner wall of the upper rotating sliding sleeve and the outer wall of the second through hole. A limit block is provided on the limit block with a jack corresponding to the insertion rod.

Further, the diameter of the slider is larger than the diameter of the plunger, and the slider is flush with the outside of the chute.

Further, the top of the first through hole is provided with a funnel-shaped through hole whose inner diameter gradually increases from bottom to top, and the second through hole and the third through hole are straight through holes corresponding to the outer diameter of the center rod. The groove is arranged on the top of the third through hole, the side wall of the accommodating groove and the side wall of the third through hole are connected by an arc transition, and the lower part of the accommodating groove is provided with a boss.

Further, the top of the base is provided with an array of rib fixings.

Further, several reinforcing ribs are arranged on the outer wall of the lower rotating sliding sleeve located at the lower part of the chute.

Further, the bottom of the third through hole penetrates the lower rotating sliding sleeve to provide attachment hanging holes, and the bottom of the lower rotating sliding sleeve is provided with several observation windows along the circumferential direction.

After adopting the above scheme, the present utility model has the following advantages: the present utility model makes the present The structure can be unlocked by rotating and pulling down, and the upper rotating sliding sleeve and the base are integrally formed in the utility model, which reduces the number of parts, is easy to assemble, durable, easy to use, smooth and safe in action, and avoids the danger of hand clamping.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings required in the embodiments will be briefly introduced below. It should be understood that the following drawings only illustrate some implementations of the present invention. For example, therefore, it should not be regarded as a limitation of the scope. For those of ordinary skill in the art, other related drawings can also be obtained from these drawings without any creative effort.

Figure 1 is a schematic structural diagram of a center lock device of the present invention.

Figure 2 is a schematic view of the split structure of a center lock device of the present invention.

Figure 3 is a schematic diagram of the internal structure of a middle and lower rotary sliding sleeve in a center lock device of the present invention.

Figure 4 is a schematic diagram of the bottom structure of a middle and lower rotating sliding sleeve in a center lock device of the present invention.

5 is a schematic diagram of the bottom structure of the upper rotating sliding sleeve in a center lock device of the present invention.

6 is a schematic structural diagram of each through hole in a center lock device of the present invention.

7 is a schematic diagram of the internal structure of a center lock device of the present invention.

FIG. 8 is a schematic view of the installation of the second elastic component in a center lock device of the present invention.

9 is a schematic diagram of the locked/unlocked state of the center rod of a center lock device of the present invention.

In the picture: 1. Base, 2. Upper rotating sliding sleeve, 3. Lower rotating sliding sleeve, 4. Center rod, 5. Chute, 6. Limit rod, 601, Insert rod, 602, Slider, 7. Section An elastic component, 8, first through hole, 801, funnel-shaped through hole, 9, second through hole, 10, third through hole, 11, accommodating groove, 12, limit ring, 13, first limit plate , 14, the second limit plate, 15, the second elastic part, 16, the bump, 17, the limit block, 18, the jack, 19, the rib fixing part, 20, the reinforcing rib, 21, the attachment hanging hole, 22, observation window, 23, boss.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The embodiments described above are a part of the embodiments of the present invention, but not all of the embodiments. The components of the embodiments of the invention generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations.

Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

It should be noted that like numerals and letters refer to like items in the following figures, so once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside" appear The orientation or positional relationship indicated by , "outside" etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that is usually placed when the utility model product is used, is only for the convenience of describing the present utility model and simplifying the It is described, rather than indicated or implied, that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first", "second", "third", etc. are only used to differentiate the description and should not be construed as indicating or implying relative importance.

Furthermore, the appearance of the terms "horizontal", "vertical", "overhanging" etc. does not imply that the component is required to be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal than "vertical", it does not mean that the structure must be completely horizontal, but can be slightly inclined.

In the description of the embodiments of the present invention, "a plurality of" means at least two.

In the description of the embodiments of the present utility model, it should also be noted that, unless otherwise expressly specified and limited, the terms "set", "installed", "connected" and "connected" should be understood in a broad sense, for example, It can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

Example

Referring to Figure 1, a center lock device includes a base 1, an upper rotating sliding sleeve 2, a lower rotating sliding sleeve 3 and a center rod 4, the upper rotating sliding sleeve 2 and the base 1 are fixed as a whole, and the lower rotating sliding sleeve 3 and the upper The rotating sliding sleeve 2 is sleeved and can be rotated relatively; the side wall of the lower rotating sliding sleeve 3 is provided with a chute 5 along the relative rotation direction of the upper rotating sliding sleeve 2 and the lower rotating sliding sleeve 3; The inner limit rod 6; the central rod 4 extends into the lower rotary sliding sleeve 3 along the base 1 and the upper rotary sliding sleeve 2; the bottom side of the central rod 4 is provided with a first elastic member 7, when subjected to external force, the first elastic member 7 is retracted into the center rod 4, and when it is not subjected to external force, the first elastic member 7 ejects the center rod 4; with reference to FIG. 4, the first through hole 8, the second through hole 9 and the third through hole 10, and the top of the first through hole 8 is provided with a funnel-shaped through hole 801 whose inner diameter gradually increases from bottom to top. The three through hole 10 is a straight through hole corresponding to the outer diameter of the center rod. A first elastic member accommodating groove 11 is provided on one side of the third through hole 10 , and the accommodating groove 11 is arranged on the top of the third through hole 10 . The side wall of the third through hole 10 is connected by an arc transition, and a boss 23 is arranged at the lower part of the accommodating groove 11; with reference to FIG. 11, the center rod 4 is locked with the upper rotating sliding sleeve 2 and the lower rotating sliding sleeve 3. When the lower rotating sliding sleeve 3 is rotated so that the side wall of the accommodating groove 11 squeezes the first elastic member and retracts into the center rod 4, The central rod 4 is unlocked with the upper rotating sliding sleeve 2 and the lower rotating sliding sleeve 3 .

In this embodiment, a gap is set between the bottom surface of the upper rotating sliding sleeve 2 and the inner bottom surface of the lower rotating sliding sleeve 3, and the inner bottom surface of the lower rotating sliding sleeve 3 is provided with a limit ring 12 sleeved outside the third through hole 10. The limit ring 12 is a A first limiting plate 13 is arranged on the side against the bottom surface of the upper rotating sliding sleeve 2 , a second limiting plate 14 is arranged at the bottom of the upper rotating sliding sleeve 2 , and a second limiting plate 14 is arranged between the first limiting plate 13 and the second limiting plate 14 . The elastic member 15 and the second elastic member 15 are return springs. With reference to FIG. 8 , a bump 16 is provided on the first limit plate 13 , one end of the spring is clamped on the bump 16 , and the other end is in contact with the second limit plate 14 ; When the external force drives the lower rotating sleeve 3 to rotate relative to the upper rotating sleeve 2, the spring is compressed between the first limit plate 13 and the second limit plate 14, which plays the role of reset after unlocking.

With reference to FIG. 2 , the limit rod 6 includes an insertion rod 601 inserted into the upper rotary sliding sleeve 2 and a sliding block 602 arranged in the chute 5 . The limit block 17 on the outer wall of the two through holes 9, the limit block 17 is provided with a socket 18 corresponding to the insertion rod 601; the diameter of the slider 602 is larger than the diameter of the insertion rod 601, and the slider 602 is flush with the outside of the chute 5, which is convenient for The relative rotation of the lower rotating sliding sleeve 3 and the upper rotating sliding sleeve 2.

Referring to FIG. 1 , the top of the base 1 is provided with an array of rib fixing members 19 , and several reinforcing ribs 20 are provided on the outer wall of the lower rotating sleeve 3 located at the lower part of the chute 5 .

4, the bottom of the third through hole 10 penetrates through the lower rotating sliding sleeve 3 to provide attachment hanging holes 21 for hanging lights or other accessories, and the bottom of the lower rotating sliding sleeve 3 is provided with several observation windows 22 along the circumferential direction, which is convenient for observation spring, and can save cost.

The present invention and the embodiments thereof have been described above, and the description is not restrictive, and what is shown in the accompanying drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. All in all, if those of ordinary skill in the art are inspired by it, without departing from the purpose of the present invention, and without creatively designing the structural modes and embodiments similar to the technical scheme, all should belong to the protection of the present invention. scope.

Claims (9)

1. A central lock device is characterized by comprising a base, an upper rotary sliding sleeve, a lower rotary sliding sleeve and a central rod, wherein the upper rotary sliding sleeve and the base are fixed into a whole; well core rod bottom one side sets up first elastomeric element, set gradually in base, the last rotatory sliding sleeve, the lower rotatory sliding sleeve and hold well core rod's first through-hole, second through-hole and third through-hole, third through-hole one side outwards sets up first elastomeric element holding tank, first elastomeric element makes well core rod and last rotatory sliding sleeve, lower rotatory sliding sleeve locking in the holding tank, when rotatory to making the holding tank lateral wall extrusion first elastomeric element retract to well core rod in, well core rod and last rotatory sliding sleeve, lower rotatory sliding sleeve unblock.

2. The center lock device according to claim 1, wherein a limiting ring is disposed on an inner bottom surface of the lower rotating sliding sleeve, a first limiting plate abutting against a bottom surface of the upper rotating sliding sleeve is disposed on one side of the limiting ring, a second limiting plate is disposed on a bottom of the upper rotating sliding sleeve, and a second elastic member is disposed between the first limiting plate and the second limiting plate.

3. The center lock device as claimed in claim 2, wherein the second elastic member is a spring, the first limiting plate is provided with a protrusion, one end of the spring is clamped on the protrusion, and the other end of the spring abuts against the second limiting plate.

4. The center lock device according to claim 1, wherein the limiting rod comprises an insertion rod inserted into the upper rotary sliding sleeve and a sliding block cooperatively disposed in the sliding groove, a limiting block connected to an inner wall of the upper rotary sliding sleeve and an outer wall of the second through hole is disposed in the upper rotary sliding sleeve, and a jack corresponding to the insertion rod is disposed on the limiting block.

5. The center lock assembly as claimed in claim 4, wherein the diameter of the slider is larger than the diameter of the plunger, and the slider is flush with the outside of the chute.

6. The center lock device according to claim 1, wherein a funnel-shaped through hole having an inner diameter gradually increasing from bottom to top is formed at the top of the first through hole, the second through hole and the third through hole are through holes corresponding to the outer diameter of the center rod, the receiving groove is formed at the top of the third through hole, the side wall of the receiving groove and the side wall of the third through hole are in arc transition connection, and a boss is formed at the lower portion of the receiving groove.

7. The center lock assembly as claimed in claim 1, wherein a plurality of rib fixing members are provided on the top of the base.

8. The center lock assembly as claimed in claim 1, wherein the lower rotary sleeve has a plurality of ribs formed on an outer wall of a lower portion of the sliding groove.

9. The center lock device as claimed in claim 1, wherein the bottom of the third through hole is provided with an attachment hanging hole penetrating through the lower rotating sliding sleeve, and a plurality of observation windows are provided at the bottom of the lower rotating sliding sleeve along the circumferential direction.

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