A buckle structure

Abstract

The utility model relates to the field of lock catch, disclose a buckle structure, including the base of hollow structure, lock piece, set up in the connecting shaft in the base inner chamber, set up in the clasp and elastic piece of connecting shaft, and with the handle fixed connection of clasp, lock piece is set up on the clench groove, the lower part of clasp passes clench groove and hooks up lock piece, the outside wall of base is set up and extends the guide groove of vertical, one side of clasp passes the guide groove and is connected with handle fixedly after, handle is used for when moving in the guide groove, compression elastic piece and drive the lower part of clasp and separate clench groove, elastic piece is used for making clasp reset, through the linkage design of handle, guide groove, clasp and elastic piece, user only needs simple lifting or pressing operation, can easily realize the separation and locking of table top panel and table leg, need not like traditional structure as hard to overcome greater deformation force, greatly promoted the operation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of latches, and in particular to a latch structure. Background Technology

[0002] Traditional tabletop stabilization mechanisms consist of a flexible retaining ring (located at the bottom of the tabletop) and a pin (located at the top of the table legs). The flexible retaining ring has a central hole; the pin is inserted into this hole, and the deformation of the retaining ring limits the pin's position, creating a locking relationship between the tabletop and legs. However, separating the tabletop from the legs requires considerable force to overcome the deformation of the retaining ring and pin, making it inconvenient for children, the elderly, and those with limited strength. Furthermore, the retaining ring can become fatigued over time, affecting its usability and increasing maintenance costs. While traditional locking mechanisms are inexpensive, they are relatively inconvenient to use.

[0003] It is evident that existing technologies still need improvement and enhancement. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a snap-fit ​​structure, which aims to improve the problems of the existing snap-fit ​​structure requiring a lot of force during use and having a short service life.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A snap-fit ​​structure includes a hollow base for fixed connection to the lower surface of a tabletop, a locking piece for fixed connection to the upper surface of a table leg, a connecting shaft extending laterally within the cavity of the base, a hook and an elastic element disposed on the connecting shaft, and a handle fixedly connected to the hook. The locking piece has a slot, and the lower part of the hook passes through the slot and hooks the locking piece. A vertically extending guide groove is provided on the outer side wall of the base, and one side of the hook passes through the guide groove and is fixedly connected to the handle. When the handle moves within the guide groove, it compresses the elastic element and causes the lower part of the hook to disengage from the slot; the elastic element resets the hook.

[0007] The buckle structure includes a hook comprising a rotating part, an extension part disposed below the rotating part, a hook part disposed below the extension part, and a connecting part connected to one side of the rotating part; the connecting shaft passes through the left and right side walls of the rotating part; the lower end of the extension part passes through the slot; the hook part extends away from the guide groove, and the hook part is used to hook the lower surface of the locking piece; the connecting part passes through the guide groove and is fixedly connected to the handle.

[0008] In the aforementioned buckle structure, the rotating part, the extension part, the hook part, and the connecting part are all integrally formed structures.

[0009] In the aforementioned snap-fit ​​structure, an integrally formed mounting seat is provided in the inner cavity of the base, and the connecting shaft passes through both side walls of the mounting seat; the mounting seat is also provided with a vertically extending clearance groove with its opening facing the guide groove, and the rotating part is located in the clearance groove.

[0010] In the aforementioned snap-fit ​​structure, the mounting base has an inclined surface on its side wall facing the guide groove, and the clearance groove is located in the middle of the inclined surface.

[0011] The buckle structure wherein the elastic element is a torsion spring, the torsion spring includes two abutting portions at the ends, a torsion portion integrally formed with the corresponding abutting portions, and a pivot portion for connecting the two torsion portions; the abutting portions abut against the inclined surface respectively; both torsion portions are sleeved on the connecting shaft; the connecting portion is provided with an upward-facing receiving groove, and the pivot portion is engaged in the receiving groove.

[0012] The snap-fit ​​structure wherein the bottom of the receiving groove extends away from the inclined surface.

[0013] In the aforementioned snap-fit ​​structure, the sidewalls of the extension facing the inclined surface and the sidewalls facing the guide groove are both configured as bevels, and the bevels cause the width of the extension to gradually shorten.

[0014] In the aforementioned snap-fit ​​structure, the connecting shaft includes a female pin and a female pin inserted into the slot of the female pin; the rotating part and the elastic element are both disposed on the outer peripheral wall of the female pin.

[0015] In the aforementioned buckle structure, a fixing hole is provided on the side wall of the handle facing the guide groove, the outer end of the connecting part is located in the fixing hole, and the connecting part is fixed to the handle by a fastener.

[0016] Beneficial effects:

[0017] This invention provides a snap-fit ​​structure. Through the coordinated design of the handle, guide groove, hook, and elastic element, users can easily separate and lock the tabletop from the table legs with a simple lifting or pressing operation, eliminating the need to overcome the large deformation force required by traditional structures and greatly improving operational efficiency. Because the required force is significantly reduced, even children, the elderly, or people with limited strength can easily complete the installation and disassembly, effectively solving the problem of traditional snap-fit ​​structures being unfriendly to special groups. Traditional flexible snap rings are prone to fatigue, affecting their usability. However, the elastic element in this snap-fit ​​structure is reasonably stressed, and the structure of each component is stable, effectively reducing wear caused by frequent use, extending the service life of the snap-fit ​​structure, and reducing the frequency of maintenance and replacement. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a snap-fit ​​structure.

[0019] Figure 2 This is a cross-sectional view of the snap-fit ​​structure.

[0020] Figure 3 This is an unfolded diagram of the snap-fit ​​structure with the base hidden.

[0021] Figure 4 This is a schematic diagram of the hook structure.

[0022] Figure 5 This is a sectional view of the base.

[0023] Figure 6 This is a schematic diagram of the elastic element.

[0024] Explanation of main component symbols: 1-base, 11-guide groove, 12-mounting seat, 13-avoidance groove, 14-bevel, 2-locking plate, 21-slot, 3-connecting shaft, 31-female pin, 32-female pin, 4-hook, 41-rotating part, 42-extension part, 421-bevel, 43-hook, 44-connecting part, 441-accommodating groove, 5-handle, 51-fixing hole, 52-fastener, 6-elastic element, 61-abutting part, 62-torsional part, 63-pivot part. Detailed Implementation

[0025] This utility model provides a snap-fit ​​structure. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit the scope of protection of this utility model.

[0026] Please see Figures 1-3This utility model provides a snap-fit ​​structure, including a hollow base 1 for fixed connection to the lower surface of a tabletop, a locking piece 2 for fixed connection to the upper surface of a table leg, a connecting shaft 3 extending laterally within the cavity of the base 1, a hook 4 and an elastic element 6 disposed on the connecting shaft 3, and a handle 5 fixedly connected to the hook 4; the locking piece 2 has a slot 21, the lower part of the hook 4 passes through the slot 21 and hooks the locking piece 2; the outer side wall of the base 1 has a vertically extending guide groove 11, one side of the hook 4 passes through the guide groove 11 and is fixedly connected to the handle 5; the handle 5 is used to compress the elastic element 6 and drive the lower part of the hook 4 out of the slot 21 when moving in the guide groove 11, and the elastic element 6 is used to reset the hook 4.

[0027] In actual use, the base 1 is pre-installed securely on the lower surface of the tabletop using screws or other fixing methods, while the locking plate 2 is correspondingly fixed to the upper surface of the table legs. When it is necessary to separate the tabletop from the table legs, the user only needs to hold the handle 5 located on the outer wall of the base 1 and apply an upward force smoothly along the guide groove 11. As the handle 5 moves upward, the hook 4 fixedly connected to it will rotate around the connecting shaft 3 as the fulcrum. At this time, the lower part of the hook 4 will gradually disengage from the slot 21 of the locking plate 2, compressing the elastic element 6 and releasing the locking relationship between the hook 4 and the locking plate 2. The tabletop will then be in a state where it can be freely lifted.

[0028] After lifting the tabletop, when the force applied to the handle 5 is released, the compressed elastic element 6 will release its stored elastic potential energy, pushing the hook 4 to rotate in the opposite direction and reset. During this process, the hook 4 drives the handle 5 to slide downward along the guide groove 11 until the hook 4 returns to its initial position.

[0029] There are two convenient ways to relock the tabletop and legs: First, press directly on the upper surface of the tabletop to re-engage the lower part of the hook 4 into the slot 21 of the locking piece 2. Second, apply downward force to the tabletop and manually pull upward on the handle 5 to guide the lower part of the hook 4 precisely into the slot 21. Then, slowly release the force on the handle 5. With the reset property of the elastic element 6, the hook 4 firmly hooks the locking piece 2, achieving a reliable connection between the tabletop and legs. This method offers better noise reduction.

[0030] In the aforementioned snap-fit ​​structure, the linkage design of the handle 5, guide groove 11, hook 4, and elastic element 6 allows users to easily separate and lock the tabletop from the table legs with a simple lifting or pressing operation. Unlike traditional structures, this eliminates the need to exert significant force to overcome large deformation forces, greatly improving operational efficiency. Because the required force is significantly reduced, even children, the elderly, or those with less strength can easily complete the installation and disassembly, effectively solving the problem of traditional snap-fit ​​structures being unfriendly to special groups. Traditional flexible snap rings are prone to fatigue, affecting their usability. However, the elastic element 6 in this snap-fit ​​structure is reasonably stressed, and the structure of each component is stable, effectively reducing wear caused by frequent use, extending the service life of the snap-fit ​​structure, and reducing the frequency of maintenance and replacement.

[0031] Please see Figures 2-4 In some embodiments, the hook 4 includes a rotating part 41, an extension part 42 disposed below the rotating part 41, a hook part 43 disposed below the extension part 42, and a connecting part 44 connected to one side of the rotating part 41; the connecting shaft 3 passes through the left and right side walls of the rotating part 41; the lower end of the extension part 42 passes through the slot 21; the extension direction of the hook part 43 is away from the guide groove 11, and the hook part 43 is used to hook the lower surface of the locking piece 2; the connecting part 44 passes through the guide groove 11 and is fixedly connected to the handle 5. The cooperative design of the rotating part 41 and the connecting shaft 3 allows the hook 4 to rotate around the connecting shaft 3, precisely controlling the engagement and disengagement of the hook part 43 and the locking piece 2. The design of the connecting part 44 passing through the guide groove 11 and being fixedly connected to the handle 5 allows the user to directly drive the hook 4 by operating the handle 5 without complicated operation, and also hides the buckle structure in the inner cavity of the base 1, which is aesthetically pleasing and does not hinder the user.

[0032] Please see Figure 4 In some embodiments, the rotating part 41, the extension part 42, the hook part 43, and the connecting part 44 are all integrally formed structures. This integral forming avoids the weak points that may exist in traditional splicing methods, eliminates connection gaps and stress concentration points between components, and makes the entire hook 4 a robust whole.

[0033] Please see Figure 2 and Figure 5In some embodiments, a mounting base 12 integrally formed with the base 1 is provided in the inner cavity of the base 1, and the connecting shaft 3 passes through the two side walls of the mounting base 12; the mounting base 12 is also provided with a vertically extending clearance groove 13 with its opening facing the guide groove 11, and the rotating part 41 is located in the clearance groove 13. The design of the connecting shaft 3 passing through the two side walls of the mounting base 12 further enhances the base 1's ability to withstand the torque generated when the hook 4 rotates, so that the entire buckle structure can distribute the force more evenly when subjected to external force. The vertically extending clearance groove 13 on the mounting base 12 with its opening facing the guide groove 11 provides sufficient space for the rotation of the hook 4. The rotating part 41 is located in the clearance groove 13, and when the handle 5 drives the hook 4 to move, it can rotate around the connecting shaft 3 without obstruction, realizing quick engagement and disengagement with the locking piece 2. In addition, it can also make part of the structure of the rotating part 41 of the hook 4 located in the clearance groove 13, thereby making the size of the base 1 smaller.

[0034] Please see Figure 2 and Figure 5 In some embodiments, the mounting base 12 has a ramp 14 on its sidewall facing the guide groove 11, and the clearance groove 13 is formed in the middle of the ramp 14. The ramp 14 is provided to provide an abutment position for the elastic member 6 to adapt to the tilt angle of both ends of the elastic member 6, and the ramp 14 can provide precise force guidance for the elastic member 6.

[0035] Please see Figures 2-3 and Figure 6 In some embodiments, the elastic element 6 is a torsion spring, which includes two abutment portions 61 at its ends, a torsion portion 62 integrally formed with the corresponding abutment portion 61 (the torsion portion 62 in the figure is a simplified representation, but it is actually a spring arranged in a ring), and a pivot portion 63 for connecting the two torsion portions 62; the abutment portions 61 abut against the inclined surface 14 respectively; both torsion portions 62 are sleeved on the connecting shaft 3; the connecting portion 44 is provided with an upward-facing receiving groove 441, and the pivot portion 63 is engaged in the receiving groove 441. When the hook 4 rotates, by lifting the pivot portion 63 in the receiving groove 441, the torsion portion 62 is gradually compressed, and the abutment portion 61 is firmly pressed against the inclined surface 14. When the force applied to the hook 4 is released, the compressed torsion portion 62 presses the hook 4 down through the pivot portion 63, thereby restoring the hook 4 to its original position. The engagement design of the pivot part 63 of the torsion spring with the connecting part 44 and the receiving groove 441 of the hook 4, and the layout of the torsion part 62 sleeved on the connecting shaft 3, tightly integrate the torsion spring and the hook 4 into a whole. During the operation of the snap-fit ​​structure, the above connection method enables the elastic force of the torsion spring to be efficiently transmitted to the hook 4, ensuring the stability of the hook 4 during the engagement and disengagement actions, preventing wobbling or displacement, and further enhancing the reliability of the connection between the tabletop and the table legs.

[0036] Please see Figure 3 and Figure 4 In some embodiments, the bottom of the receiving groove 441 extends away from the inclined surface 14. The extending direction of the receiving groove 441 is adapted to the rotation / displacement trajectory of the hook 4 to ensure that the pivot portion 63 of the torsion spring is securely engaged with the bottom of the receiving groove 441.

[0037] Please see Figure 3 and Figure 4 In some embodiments, the sidewalls of the extension 42 facing the inclined surface 14 and the sidewalls facing the guide groove 11 are both configured as inclined sides 421, which gradually shorten the width of the extension 42. This limitation makes it easier for the extension 42 and the hook 4 to enter and exit the slot 21, preventing insufficient precision in the fit between the hook 4 and the slot 21 during use from affecting the lifting and resetting of the tabletop.

[0038] Please see Figure 3 In some embodiments, the connecting shaft 3 includes a female pin 31 and a female pin 32 inserted into a slot in the female pin 31; the rotating part 41 and the elastic element 6 are both disposed on the outer peripheral wall of the female pin 31. The nested design of the female pin 31 and the female pin 32 forms a double-layer force-bearing structure, which can withstand greater torque and external impact. During assembly, the cooperation of the female pin 32 and the female pin 31 allows for quick assembly with the rotating part 41 and the elastic element 6 of the hook 4, and facilitates subsequent maintenance and replacement.

[0039] Please see Figure 1 and Figure 2 In some embodiments, the handle 5 has a fixing hole 51 on its side wall facing the guide groove 11, and the outer end of the connecting part 44 is located in the fixing hole 51. The connecting part 44 is fixed to the handle 5 by a fastener 52. Specifically, the fastener 52 is a screw. The screw passes through the fixing hole 51 to tightly fix the connecting part 44 to the handle 5, forming a reliable rigid connection. This allows for fast assembly and facilitates subsequent replacement of the handle 5.

[0040] In summary, this utility model, through the linkage design of handle 5, guide groove 11, hook 4 and elastic element 6, allows users to easily separate and lock the tabletop and table legs with simple lifting or pressing operations, without having to overcome large deformation forces as in traditional structures, thus greatly improving operating efficiency.

[0041] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0042] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0043] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of this utility model, and all such substitutions or changes should fall within the protection scope of this utility model.

Claims

1. A snap-fit ​​structure, characterized in that, The device includes a hollow base for fixed connection to the lower surface of a tabletop, a locking plate for fixed connection to the upper surface of a table leg, a connecting shaft extending laterally within the cavity of the base, a hook and an elastic element disposed on the connecting shaft, and a handle fixedly connected to the hook. The locking plate has a slot, and the lower part of the hook passes through the slot and engages with the locking plate. A vertically extending guide groove is provided on the outer wall of the base, and one side of the hook passes through the guide groove and is fixedly connected to the handle. When the handle moves within the guide groove, it compresses the elastic element and causes the lower part of the hook to disengage from the slot; the elastic element resets the hook.

2. The snap-fit ​​structure according to claim 1, characterized in that, The latch includes a rotating part, an extension part disposed below the rotating part, a hook part disposed below the extension part, and a connecting part connected to one side of the rotating part; the connecting shaft passes through the left and right side walls of the rotating part; the lower end of the extension part passes through the latch groove; the hook part extends away from the guide groove, and the hook part is used to hook the lower surface of the locking piece; the connecting part passes through the guide groove and is fixedly connected to the handle.

3. The snap-fit ​​structure according to claim 2, characterized in that, The rotating part, the extension part, the hook part, and the connecting part are all integrally formed structures.

4. The snap-fit ​​structure according to claim 2, characterized in that, The base has an integrally formed mounting seat in its inner cavity, and the connecting shaft passes through both side walls of the mounting seat; the mounting seat also has a vertically extending clearance groove with its opening facing the guide groove, and the rotating part is located in the clearance groove.

5. The snap-fit ​​structure according to claim 4, characterized in that, The mounting base has an inclined surface on its side wall facing the guide groove, and the clearance groove is located in the middle of the inclined surface.

6. The snap-fit ​​structure according to claim 5, characterized in that, The elastic element is a torsion spring, which includes two abutting portions at the ends, a torsion portion integrally formed with the corresponding abutting portions, and a pivot portion for connecting the two torsion portions; the abutting portions abut against the inclined surface respectively; both torsion portions are sleeved on the connecting shaft; the connecting portion is provided with an upward-facing receiving groove, and the pivot portion is engaged in the receiving groove.

7. The snap-fit ​​structure according to claim 6, characterized in that, The bottom of the receiving groove extends away from the inclined plane.

8. The snap-fit ​​structure according to claim 5, characterized in that, The sidewalls of the extension facing the inclined surface and the sidewalls facing the guide groove are both configured as bevels, which cause the width of the extension to gradually shorten.

9. The snap-fit ​​structure according to claim 2, characterized in that, The connecting shaft includes a female nail and a female nail inserted into the slot of the female nail; the rotating part and the elastic element are both disposed on the outer peripheral wall of the female nail.

10. The snap-fit ​​structure according to claim 2, characterized in that, The handle has a fixing hole on its side wall facing the guide groove. The outer end of the connecting part is located in the fixing hole, and the connecting part is fixed to the handle by fasteners.

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