Shelf mounting buckle self-locking mechanism, mounting buckle and shelf mounting device

Abstract

The utility model relates to a shelf installation buckle self-locking mechanism, an installation buckle and a shelf installation device, the mechanism comprises a self-locking part, one end of the self-locking part is provided with a transverse rotating shaft seat, and the self-locking part is rotatably assembled in a through hole penetrating through the front end and the rear end of the installation buckle through a rotating shaft penetrating through the transverse rotating shaft seat; a torsion spring is installed on the transverse rotating shaft seat, two torsion feet of the torsion spring are connected to the hole wall of the through hole and the self-locking part respectively, and the included angle between the two torsion feet is 80-110 degrees after the torsion spring is assembled on the installation buckle. Thus, automatic resetting and locking of the self-locking part can be achieved, the shelf mounting buckle self-locking mechanism is simple in structure, production, machining and assembly difficulty is lowered, performance is stable and reliable, the self-locking part rotates stably and smoothly, meanwhile, it is ensured that the stable locking performance is achieved, unlocking can be easily operated, operation is convenient, the hand feeling is good, and the service life of the shelf mounting buckle self-locking mechanism is prolonged. And the torsion spring and the self-locking part are stably and reliably assembled, and cannot loosen and deviate in the rotating process of the self-locking part.

Description

Technical Field

[0001] The utility model belongs to the technical field of refrigerators and shelves, and particularly relates to a shelf installation buckle self-locking mechanism, an installation buckle and a shelf installation device. Background Art

[0002] In order to facilitate installation and adjust the height of the shelves, currently freezers and shelves use slide rails and multiple mounting buckles on the slide rails to fix multiple shelves on the freezers and shelves. However, the applicant found that the existing mounting buckles all lock the mounting buckles on the slide rails through a locking part that moves in a seesaw manner, and the locking part realizes automatic resetting and locking of the locking part through a compression spring mounting seat provided at the end away from the locking end and a small compression spring between the compression spring mounting seat and the mounting buckle (that is, the small compression spring is compressed and the two ends are respectively abutted against the side walls of the compression spring mounting seat and the mounting buckle). This small compression spring reset structure has the following defects:

[0003] 1. Installing a small compression spring in the small space between the compression spring mounting seat and the side wall of the mounting buckle is difficult to assemble and requires high processing accuracy of accessories;

[0004] 2. During assembly and use, the small compression spring is easy to loosen, shift, or even pop out, resulting in unstable and unreliable automatic reset and locking performance of the locking part;

[0005] 3. The variable bending range of the small compression spring is extremely limited. While ensuring effective locking performance, there is a problem that the unlocking force increases, the difficulty of operation also increases accordingly, affecting the convenience of use. Utility Model Content

[0006] In order to overcome the deficiencies of the prior art, the utility model aims to provide a self-locking structure of a shelf installation buckle self-locking mechanism.

[0007] In order to solve the above problems, the technical solutions adopted by the utility model are as follows:

[0008] In the first aspect, the utility model provides a self-locking mechanism for a shelf mounting buckle, comprising a self-locking portion, one end of the self-locking portion being provided with a transverse rotating shaft seat, and the self-locking portion being assembled in a through hole running through the front and rear ends of the mounting buckle by rotating through a rotating shaft passing through the transverse rotating shaft seat; a torsion spring is installed on the transverse rotating shaft seat, and two torsion pins of the torsion spring are respectively connected to the hole wall of the through hole and the self-locking portion, and the angle between the two torsion pins after being assembled on the mounting buckle is 80°~110°.

[0009] The utility model adopts the above technical scheme, that is, the automatic resetting and locking of the self-locking part is realized, and the self-locking mechanism of the shelf installation buckle has a simple structure, and the difficulty of production, processing and assembly is significantly reduced. The performance is stable and reliable, and the installation is convenient. The self-locking part rotates smoothly and smoothly, and it is ensured that the unlocking can be easily operated while having stable locking performance. The operation is convenient and the hand feel is good. The assembly of the torsion spring and the self-locking part is stable and reliable, and the self-locking part will not loosen or deviate during the rotation process.

[0010] Furthermore, the torsion spring comprises a group A torsion spring coil and a group B torsion spring coil, wherein a lower torsion foot is integrally connected between the group A torsion spring coil and the group B torsion spring coil, and the group A torsion spring coil and the group B torsion spring coil both comprise an upper torsion foot; a raised positioning block is provided on the front surface of the self-locking portion; during assembly, the group A torsion spring coil and the group B torsion spring coil are respectively installed at the two ends of the transverse rotating shaft seat, and the lower torsion foot is connected to the front surface of the self-locking portion and buckles the positioning block.

[0011] Furthermore, the lower twist foot is a U-shaped frame to form a buckle position, and the positioning block is adapted to be clamped in the buckle position.

[0012] Furthermore, the upper torsion legs of the torsion spring coils of group A and group B are separated from each other or connected as one, and abut against the upper hole wall of the through hole.

[0013] Furthermore, the torsion spring coils of group A and group B have the same number of coils and are coaxial.

[0014] Furthermore, the torsion spring is a bilaterally symmetrical structure.

[0015] Furthermore, the torsion spring has a first torsion foot and a second torsion foot, the upper end of the first torsion foot is provided with a transverse bending portion, the width of the transverse bending portion is adapted to the width of the upper hole wall of the through hole, and the lower end of the second torsion foot is bent transversely and hooked inward to form a hook portion; during assembly, the torsion spring is installed on one end of the transverse rotating shaft seat, the transverse bending portion abuts against the upper hole wall of the through hole, and the hook portion transversely overlaps and hooks the self-locking portion.

[0016] Furthermore, a hook foot is provided at the end of the hook portion, and the hook foot hooks one side of the self-locking portion.

[0017] Furthermore, the torsion spring has a first torsion foot and a second torsion foot, the second torsion foot is bent into a hook shape, and the front surface of the self-locking part is provided with a raised positioning block; during assembly, the torsion spring is installed at one end of the transverse rotating shaft seat, the first torsion foot abuts against the upper hole wall of the through hole of the mounting buckle, and the second torsion foot is connected to the front surface of the self-locking part and hooks the positioning block.

[0018] In a second aspect, the utility model further provides a mounting buckle, which is provided with a through hole penetrating through the front and rear ends, and the above-mentioned shelf mounting buckle self-locking mechanism is assembled in the through hole.

[0019] In a third aspect, the utility model further provides a shelf installation device, comprising a slide rail, on which a plurality of the above-mentioned installation buckles are mounted.

[0020] For the technical effects that may be achieved in the above-mentioned second and third aspects, as well as various aspects of the second and third aspects, please refer to the above-mentioned description of the technical effects that may be achieved in the first aspect or various possible schemes in the first aspect, and no further details will be given here. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the self-locking mechanism of the shelf installation buckle described in the first embodiment of the utility model;

[0022] Figure 2 It is a structural schematic diagram of a torsion spring in a self-locking mechanism for a shelf installation buckle according to Embodiment 1 of the present utility model;

[0023] Figure 3 It is a front view structural schematic diagram of the torsion spring in the self-locking mechanism of the shelf installation buckle described in the first embodiment of the utility model;

[0024] Figure 4 It is a structural schematic diagram of a mounting buckle equipped with the self-locking mechanism of the shelf mounting buckle described in the first embodiment of the utility model;

[0025] Figure 5 It is a structural schematic diagram of the self-locking mechanism of the shelf installation buckle described in the second embodiment of the utility model;

[0026] Figure 6 It is a structural schematic diagram of a torsion spring in a self-locking mechanism for a shelf installation buckle according to Embodiment 2 of the present utility model;

[0027] Figure 7 It is a structural schematic diagram of a mounting buckle equipped with the self-locking mechanism of the shelf mounting buckle described in the second embodiment of the utility model;

[0028] Figure 8 It is a structural schematic diagram of the self-locking mechanism of the shelf installation buckle described in the third embodiment of the present utility model;

[0029] Fig. 9 It is a structural schematic diagram of a torsion spring in a self-locking mechanism for a shelf installation buckle according to Embodiment 3 of the present utility model;

[0030] Fig.10 It is a structural schematic diagram of the self-locking mechanism of the shelf installation buckle described in the fourth embodiment of the utility model;

[0031] Fig.11It is a structural schematic diagram of the torsion spring in the self-locking mechanism of the shelf installation buckle described in Example 4 of the utility model.

[0032] Explanation of the reference numerals in the accompanying drawings: 100, self-locking portion, 101, horizontal rotating shaft seat, 102, rotating shaft, 103, torsion spring, 104, torsion spring coil of group A, 105, torsion spring coil of group B, 106, lower twist foot, 107, upper twist foot, 108, positioning block, 109, buckle position, 110, first twist foot, 111, second twist foot, 112, horizontal bending portion, 113, hook portion, 114, hook foot. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0034] Embodiment 1

[0035] like Figure 1-3 As shown, the self-locking mechanism of the shelf mounting buckle described in the embodiment of the utility model includes a self-locking part 100, one end of which is provided with a transverse rotating shaft seat 101, and a torsion spring 103 is installed on the transverse rotating shaft seat 101. During assembly, the self-locking part 100 is assembled in the through hole 201 that passes through the front and rear ends of the mounting buckle 200 by rotating the rotating shaft 102 that passes through the transverse rotating shaft seat 101, and the two twisting legs of the torsion spring 103 are respectively connected to the hole wall of the through hole 201 and the self-locking part 100, and the angle between the two twisting legs after being assembled on the mounting buckle 200 is 80° to 110°.

[0036] The torsion spring 103 comprises a torsion spring coil 104 of group A and a torsion spring coil 105 of group B, wherein a lower torsion foot 106 connected integrally between the torsion spring coils 104 of group A and the torsion spring coils 105 of group B is provided, and both the torsion spring coils 104 of group A and the torsion spring coils 105 of group B have an upper torsion foot 107, and the upper torsion feet 107 of the torsion spring coils 104 of group A and the torsion spring coils 105 of group B are separated from each other (of course, they can also be connected integrally); the front surface of the self-locking portion 100 is provided with a raised positioning block 1 08; During assembly, the torsion spring coils 104 of group A and the torsion spring coils 105 of group B are respectively installed at the two ends of the transverse rotating shaft seat 103, and the upper twist feet 107 of the torsion spring coils 104 of group A and the torsion spring coils 105 are abutted against the upper hole wall of the through hole 201, and the lower twist feet 106 are connected to the front surface of the self-locking part 100 and buckle the positioning block 108. Specifically, the lower twist feet 106 are U-shaped frames to form a buckle position 109, and the positioning block 108 is adapted to be stuck in the buckle position 109.

[0037] like Figure 4The self-locking mechanism of the shelf installation buckle of the utility model is assembled to the installation buckle 200 for use. Under the action of the torsion spring 103, the self-locking part 100 is automatically reset and locked. Compared with the existing installation buckle that uses a small compression spring to reset, there is no need to set structures such as compression spring mounting seat and support column in the limited small space. The difficulty of production, processing and assembly is significantly reduced. The structure is simple, stable and reliable, and the installation is convenient. The self-locking part 100 rotates smoothly and smoothly. Moreover, the torsion spring 103 has a large torsion space for the torsion foot, and the torsion foot connected to the self-locking part 100 is longer. While ensuring stable locking performance, it can be easily unlocked, easy to operate, and has a good hand feel. In addition, the torsion spring 103 is stably and reliably assembled with the self-locking part 100 through the joint action of the torsion spring coil 104 of group A, the torsion spring coil 105 of group B, the lower torsion foot 106 and the positioning block 108. During the rotation process of the self-locking part 100, it will not loosen or deviate, thereby improving the performance of the self-locking mechanism of the shelf installation buckle.

[0038] In order to further improve the balance of the force of the torsion spring 103 on the self-locking part 100, on the one hand, to improve the stability and smoothness of the self-locking part 103 in unlocking rotation and automatic reset, enhance the operating feel, and on the other hand, enhance the reliability of the locking of the self-locking part 100, the torsion spring coils 104 of the group A and the torsion spring coils 105 of the group B of the first embodiment of the present invention have the same number of coils and are coaxial. Preferably, the torsion spring 103 is a bilaterally symmetrical structure, such as Figure 1-3 .

[0039] Embodiment 2

[0040] like Figure 5-7 The structure and working principle of the self-locking mechanism of the shelf mounting buckle described in the embodiment of the utility model are basically the same as those of the first embodiment, and include a self-locking part 100, one end of which is provided with a transverse rotating shaft seat 101, and a torsion spring 103 is installed on the transverse rotating shaft seat 101. During assembly, the self-locking part 100 is assembled in the through hole 201 of the mounting buckle 200 through the rotating shaft 102 passing through the transverse rotating shaft seat 101, and the two torsion pins of the torsion spring 103 are respectively connected to the hole wall of the through hole 201 and the self-locking part 100, and the angle between the two torsion pins after being assembled on the mounting buckle 200 is 80° to 110°. The only difference is that: the torsion spring 103 has a first twist foot 110 and a second twist foot 111, the upper end of the first twist foot 110 is provided with a transverse bending portion 112, the width of the transverse bending portion 112 is adapted to the width of the upper hole wall of the through hole 201, and the lower end of the second twist foot 111 is bent transversely and hooked inward to form a hook portion 113; during assembly, the torsion spring 103 is installed at one end of the transverse rotating shaft seat 101, the transverse bending portion 112 abuts against the upper hole wall of the through hole 201, and the hook portion 113 transversely overlaps and hooks the self-locking portion 100.

[0041] When the second embodiment of the present invention is in use, the self-locking part 100 is automatically reset and locked under the action of the torsion spring 103. Compared with the existing installation buckle that uses a small compression spring for reset, the difficulty of production, processing and assembly is also significantly reduced. The structure is simple, stable and reliable, and easy to install. The self-locking part 100 rotates smoothly and smoothly. The torsion spring 103 can also be easily unlocked while ensuring stable locking performance. The operation is convenient and the hand feel is good. In addition, through the lateral bending portion 112 of the first twist foot 110 and the hook portion 113 of the second twist foot 111, the torsion spring 103 will not loosen or deviate during the rotation process of the self-locking part 100, thereby improving the performance of the self-locking mechanism of the shelf installation buckle.

[0042] Preferably, if Figure 5-8 A hook foot 114 is also provided at the end of the hook portion 113, and the hook foot 114 hooks one side of the self-locking portion 100, further improving the assembly stability of the torsion spring 103 and the self-locking portion 100, ensuring that the torsion spring 103 will not loosen or deviate during the rotation of the self-locking portion 100.

[0043] Embodiments 3 and 4

[0044] like Figures 8 to 11 As shown, the structure and working principle of the frame mounting buckle self-locking mechanism described in the third and fourth embodiments of the utility model are basically the same as those of the second embodiment, and include a self-locking part 100, one end of which is provided with a transverse rotating shaft seat 101, and a torsion spring 103 is installed on the transverse rotating shaft seat 101. During assembly, the self-locking part 100 is rotated and assembled in the through hole 201 that passes through the front and rear ends of the mounting buckle 200 by the rotating shaft 102 that passes through the transverse rotating shaft seat 101, and the torsion spring 103 has a first twisting foot 110 and a second twisting foot 111, and the first twisting foot 110 and the second twisting foot 111 are respectively connected to the hole wall of the through hole 201 and the self-locking part 100, and after being assembled on the mounting buckle 200, the angle between the first twisting foot 110 and the second twisting foot 111 is 80° to 110°. The only difference is that the second twist leg 111 is bent into a hook shape, the front surface of the self-locking part 100 is provided with a protruding positioning block 108, and the first twist leg 110 can be provided with a transverse bending portion 112 (see Figure 8 and 9 ), or a straight rod (see Fig.10 and 11 ); During assembly, the torsion spring 103 is installed at one end of the horizontal rotating shaft seat 103, the first twist foot 110 abuts against the upper hole wall of the through hole 201 of the mounting buckle, and the second twist foot 111 is connected to the front surface of the self-locking part 100 and hooks the positioning block 108.

[0045] When the third and fourth embodiments of the present invention are in use, the self-locking part 100 is automatically reset and locked under the action of the torsion spring 103. Compared with the existing installation buckles that use a small compression spring for reset, the difficulty of production, processing and assembly is also significantly reduced. The structure is simple, stable and reliable, and easy to install. The self-locking part 100 rotates smoothly and smoothly. The torsion spring 103 can also be easily unlocked while ensuring stable locking performance. The operation is convenient and the hand feel is good. The positioning block 108 is hooked by the hook-shaped second twist foot 111, so that the torsion spring 103 will not loosen or deviate during the rotation process of the self-locking part 100, thereby improving the performance of the self-locking mechanism of the shelf installation buckle.

[0046] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A self-locking mechanism for a shelf installation buckle, characterized in that: The invention comprises a self-locking part (100), one end of which is provided with a transverse rotating shaft seat (101), and the self-locking part (100) is rotatably assembled in a through hole (201) penetrating the front and rear ends of a mounting buckle (200) by means of a rotating shaft (102) passing through the transverse rotating shaft seat (101); a torsion spring (103) is mounted on the transverse rotating shaft seat (101), and two torsion pins of the torsion spring (103) are respectively connected to the hole wall of the through hole (201) and the self-locking part (100), and after being assembled on the mounting buckle (200), the angle between the two torsion pins is 80° to 110°.

2. The self-locking mechanism for shelf installation buckles according to claim 1, characterized in that: The torsion spring (103) comprises a torsion spring coil of group A (104) and a torsion spring coil of group B (105), wherein a lower twist foot (106) is connected integrally between the torsion spring coil of group A (104) and the torsion spring coil of group B (105), and both the torsion spring coil of group A (104) and the torsion spring coil of group B (105) comprise an upper twist foot (107); a protruding positioning block (108) is provided on the front surface of the self-locking part (100); during assembly, the torsion spring coil of group A (104) and the torsion spring coil of group B (105) are respectively mounted on two ends of the transverse rotating shaft seat (101), and the lower twist foot (106) is connected to the front surface of the self-locking part (100) and buckles the positioning block (108).

3. The self-locking mechanism for shelf installation buckles according to claim 2, characterized in that: The lower twist foot (106) is in a U-shaped frame, forming a buckle position (109), and the positioning block (108) is adapted to be clamped in the buckle position (109).

4. The self-locking mechanism for shelf installation buckles according to claim 2, characterized in that: The upper torsion legs (107) of the torsion spring coils (104) of the group A and the torsion spring coils (105) of the group B are separated from each other or connected as one, and abut against the upper hole wall of the through hole (201).

5. The self-locking mechanism for shelf installation buckles according to claim 2, characterized in that: The torsion spring coils (104) of group A and the torsion spring coils (105) of group B have the same number of coils and are coaxial.

6. The self-locking mechanism for shelf installation buckles according to claim 2, characterized in that: The torsion spring (103) has a left-right symmetrical structure.

7. The self-locking mechanism for shelf installation buckles according to claim 1, characterized in that: The torsion spring (103) comprises a first torsion foot (110) and a second torsion foot (111); the upper end of the first torsion foot (110) is provided with a transverse bending portion (112); the width of the transverse bending portion (112) is adapted to the width of the upper hole wall of the through hole (201); the lower end of the second torsion foot (111) is transversely bent and hooked inward to form a hook portion (113); during assembly, the torsion spring (103) is installed on one end of the transverse rotating shaft seat (101), the transverse bending portion (112) abuts against the upper hole wall of the through hole (201), and the hook portion (113) transversely overlaps and hooks the self-locking portion (100).

8. The self-locking mechanism for shelf installation buckles according to claim 7, characterized in that: A hook foot (114) is also provided at the end of the hook portion (113), and the hook foot (114) hooks one side of the self-locking portion (100).

9. The self-locking mechanism for shelf installation buckles according to claim 1, characterized in that: The torsion spring (103) comprises a first torsion foot (110) and a second torsion foot (111), wherein the second torsion foot (111) is bent into a hook shape, and a protruding positioning block (108) is provided on the front surface of the self-locking part (100); during assembly, the torsion spring (103) is installed on one end of the transverse rotating shaft seat (101), the first torsion foot (110) abuts against the upper hole wall of the through hole (201) of the mounting buckle, and the second torsion foot (111) is connected to the front surface of the self-locking part (100) and hooks the positioning block (108).

10. A mounting buckle, characterized in that: The mounting buckle is provided with a through hole (201) penetrating through the front and rear ends, and the through hole (201) is equipped with the shelf mounting buckle self-locking mechanism described in any one of claims 1 to 9.

11. A shelf installation device, characterized in that: A slide rail is included, on which a plurality of mounting buckles according to claim 10 are mounted.

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