Detachable plate connecting buckle

Abstract

The utility model relates to the technical field of connecting buckles, and discloses a detachable plate connecting buckle which comprises a female buckle, a male buckle and a screw. The female buckle comprises a female buckle base body, a female buckle fixing hole and a plurality of female buckle separating seams are formed in the female buckle base body to form a plurality of female buckle units, and female buckle parts are arranged at the ends of the female buckle units; the male buckle comprises a male buckle base body, a male buckle fixing hole and a plurality of male buckle separating seams are formed in the male buckle base body to form a plurality of male buckling units, and male buckling parts are arranged at the ends of the male buckling units; and the height of the female inner wall surface is greater than the sum of the heights of the male embedding surface, the male separating surface and the male binding surface. After the male buckle and the female buckle are embedded, the male buckle still has the moving distance alpha, the problem that an existing connecting buckle is prone to releasing when connecting different plates is solved, the precision requirement for forming counter bores is lowered through the redundant distance alpha, the connecting buckle adapts to splicing operation of the plates wrapped with skins of different thicknesses, and the splicing efficiency is improved. And the working efficiency and the connection stability are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of connecting buckle technology, specifically, a detachable sheet metal connecting buckle. Background Technology

[0002] A massage chair is a device that simulates manual massage, designed to help users relax their bodies, relieve fatigue, promote blood circulation, and improve health through various massage techniques. It employs a mechanical or electronic control system and is equipped with a variety of massage functions, such as kneading, tapping, pushing, and vibration, simulating different techniques through rollers, airbags, and other devices. Users can adjust the intensity, speed, and mode of the massage according to their individual needs.

[0003] Existing massage chairs are typically covered with a leather upholstery and filled with elastic materials to improve user comfort. However, the armrests, where users rest their arms, experience significant wear and tear on the leather upholstery, making them prone to aging and damage over time. Therefore, removable armrest panels are usually installed using fasteners, with the leather upholstery and padding on top. When damaged, only the armrest panel needs to be removed and the affected section of leather replaced, reducing maintenance costs and complexity. However, because the leather upholstery on the armrest panel is nailed to the side that connects to the armrest frame, the fasteners on the armrest panel can be compressed after engagement, making the upholstery prone to coming undone. Utility Model Content

[0004] The purpose of this utility model is to provide a detachable plate connecting buckle to solve the problem that existing connecting buckles are prone to coming loose when connecting handrail plates and handrail frames.

[0005] This utility model is achieved through the following technical solution: a detachable plate connecting buckle, including a female buckle, a male buckle, and a screw, wherein the screw is used to fix the female buckle and the male buckle to different plates respectively, and the female buckle and the male buckle are engaged to connect the plates;

[0006] The female buckle includes a female buckle base, on which a female buckle fixing hole and multiple female buckle separation seams are formed to form multiple female buckle engagement units. The end of each female buckle engagement unit is provided with a female buckle engagement part. The female buckle engagement part includes a female fitting surface, a female disengagement surface, a female contact surface, a female inner wall surface, and a female end face.

[0007] The male buckle includes a male buckle base, on which male buckle fixing holes and multiple male buckle separation seams are formed to create multiple male buckle engagement units. The end of each male buckle engagement unit is provided with a male buckle engagement part. The male buckle engagement part includes a male fitting surface, a male disengagement surface, a male contact surface, a male outer wall surface, and a male end face.

[0008] The height of the inner wall of the female buckle is greater than the sum of the heights of the male fitting surface, the male detaching surface, and the male mating surface, so that after the male buckle is inserted into the female buckle, the male buckle has a movable distance α.

[0009] To better realize this utility model, the width of the male fastening unit is further greater than the width of the female fastening separation seam.

[0010] To better realize this utility model, the number of the female buckle separation seam and the male buckle separation seam is the same and is 3-6, that is, the number of the female buckle engagement unit and the male buckle engagement unit is the same and is 3-6.

[0011] To better realize this utility model, the width of the female fastening unit is further greater than the width of the female fastening separation seam.

[0012] To better realize this utility model, the inner diameters of the female and male fixing holes are the same, and the outer diameter of the threaded portion of the screw is equal to the inner diameter of the female or male fixing hole.

[0013] To better realize this utility model, further, the inclination angle between the female mating surface and the horizontal plane is the same as the inclination angle between the male mating surface and the horizontal plane; the inclination angle between the female disengagement surface and the horizontal plane is the same as the inclination angle between the male disengagement surface and the horizontal plane.

[0014] To better realize this utility model, the female buckle base is further provided with multiple through holes.

[0015] To better realize this utility model, the opening position of the through hole coincides with the position of the female fastening unit along the radial direction of the female fastening base.

[0016] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0017] (1) By setting the male buckle and female buckle to fit together, the male buckle still has an active distance α, which solves the problem that existing connecting buckles are prone to disengagement when connecting different plates. The redundant distance α is used to reduce the accuracy requirements of opening countersunk holes and adapt to splicing operations of plates covered with skin of different thicknesses, greatly improving work efficiency and connection stability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a cross-sectional view of the overall structure of this utility model.

[0020] Figure 3 This is an exploded view of the overall structure of this utility model.

[0021] Figure 4 Schematic diagram of the female buckle structure Figure 1 .

[0022] Figure 5 Schematic diagram of the female buckle structure Figure 2 .

[0023] Figure 6 This is a schematic diagram of the male buckle structure.

[0024] Figure 7 This is a schematic diagram of the connection between the fastener and the sheet metal.

[0025] Wherein: 10-Female buckle; 20-Male buckle; 30-Screw; 101-Female buckle base; 102-Female buckle fixing hole; 103-Female buckle separation seam; 104-Female buckle engagement unit; 1041-Female mating surface; 1042-Female detachment surface; 1043-Female mating surface; 1044-Female inner wall surface; 1045-Female end face; 105-Through hole; 201-Male buckle base; 202-Male buckle fixing hole; 203-Male buckle separation seam; 204-Male buckle engagement unit; 2041-Male mating surface; 2042-Male detachment surface; 2043-Male mating surface; 2044-Male outer wall surface; 2045-Male end face; 401-Handrail frame; 402-Removable handrail plate; 403-Counterhead hole. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] 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 or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Example 1:

[0029] This embodiment provides a detachable sheet metal connecting buckle, specifically as follows: Figures 1-7As shown, a detachable sheet metal connector includes a female buckle 10, a male buckle 20, and a screw 30. The female buckle 10 and the male buckle 20 are both plastic products manufactured using injection molding. The screw 30 is used to fix the female buckle 10 and the male buckle 20 to different sheets of material respectively. The female buckle 10 and the male buckle 20 are engaged to connect the sheets of material.

[0030] The female buckle 10 includes a female buckle base 101, on which a female buckle fixing hole 102 and a plurality of female buckle separation seams 103 are provided to form a plurality of female buckle engagement units 104. The female buckle engagement unit 104 is provided with a female buckle engagement part at its end. The female buckle engagement part includes a female fitting surface 1041, a female disengagement surface 1042, a female contact surface 1043, a female inner wall surface 1044, and a female end face 1045.

[0031] The male buckle 20 includes a male buckle base 201, on which a male buckle fixing hole 202 and a plurality of male buckle separation seams 203 are provided to form a plurality of male buckle engagement units 204. The end of the male buckle engagement unit 204 is provided with a male buckle engagement part; the male buckle engagement part includes a male fitting surface 2041, a male disengagement surface 2042, a male contact surface 2043, a male outer wall surface 2044, and a male end surface 2045.

[0032] The height of the inner wall surface 1044 of the female is greater than the sum of the heights of the male mating surface 2041, the male detaching surface 2042, and the male contact surface 2043, so that after the male buckle 20 is inserted into the female buckle 10, the male buckle 20 has a movable distance α.

[0033] Both the handrail frame 401 and the detachable handrail plate 402 have countersunk holes 403. The diameter of the countersunk holes 403 is slightly larger than the diameter of the female buckle 10, allowing the female buckle unit 104 to undergo an outward expansion deformation. When using the connecting buckle, two screws 30 are passed through the female buckle fixing hole 102 and the male buckle fixing hole 202, respectively. Then, the screws 30 are drilled into the handrail frame 401 or the detachable handrail plate 402. At this time, the female buckle 10 is fixed on the handrail frame 401, and the male buckle 20 is fixed on the detachable handrail plate 402. When the handrail frame 401 and the detachable handrail plate 402 are brought together, the male buckle 20 will be inserted into the female buckle 10, thus connecting the handrail frame 401 and the detachable handrail plate 402. Specifically: When the handrail frame 401 and the handrail frame 401 approach each other, the male mating surface 2041 first contacts the female mating surface 1041. At this time, the female mating surface 1041 will block the male mating surface 2041. Therefore, multiple female mating surfaces 1041 will expand outward under the action of force, while multiple male mating surfaces 2041 will retract inward under the reaction force, until the female mating surface 1041 and the male mating surface 2041 are completely misaligned. After that, the female mating surface 1043 and the male mating surface 2043 are mated, and the male buckle 20 moves further. When the female mating surface 1043 and the male mating surface 2043 are separated, the female detachment surface 104... 2. When the male fastener 20 begins to contact the male disengagement surface 2042, the female fastening unit 104 and the male fastening unit 204 gradually return to their original shapes. As the male fastener 20 is further inserted, the male contact surface 2043 begins to adhere to the female inner wall surface 1044, and the female contact surface 1043 begins to adhere to the male outer wall surface 2044. At this time, the female fastening unit 104 and the male fastening unit 204 completely return to their initial shapes, and the fastening is completed. If the male fastener 20 is further inserted, the male end face 2045 will press against the end face of the female fastener base 101 after moving a distance of α. At this time, the male fastener 20 cannot be further inserted.

[0034] Because the surfaces of the handrail frame 401 and the removable handrail board 402 that are in close contact with each other have outer skin covering the edges (workers use an air gun to nail the skin edges to the hidden contact surfaces, so that the exposed surfaces of the handrail frame 401 and the removable handrail board 402 are covered with skin to improve the texture), when the handrail frame 401 and the removable handrail board 402 are attached, the presence of the skin prevents the handrail frame 401 and the removable handrail board 402 from being completely attached. That is, there is actually a gap between the handrail frame 401 and the removable handrail board 402. The countersunk hole 403 is drilled manually, and its depth cannot be made with high precision. Furthermore, since different chair models use different thicknesses of upholstery, if traditional connectors without a redundancy distance α are used, forcibly pressing the armrest frame 401 and the detachable armrest board 402 together, causing the male and female connectors to engage, will result in the upholstery being compressed. This creates a force that pushes the armrest frame 401 and the detachable armrest board 402 away from each other, easily causing the female release surface 1042 and the male release surface 2042 to remain under constant pressure. This prevents the female engagement unit 104 and the male engagement unit 204 from subsequently recovering their original positions. In cases of improper restoration, this can even lead to disengagement. However, using the connecting buckle provided in this case, after the handrail frame 401 and the detachable handrail plate 402 are pressed and fastened together, when the skin is compressed and reset, the male buckle 20 can move a distance α along with the detachable handrail plate 402. This alleviates the force exerted by the skin compression on the handrail frame 401 and the detachable handrail plate 402. At this time, the gap between the handrail frame 401 and the detachable handrail plate 402 is α, but because the edges of the handrail frame 401 and the detachable handrail plate 402 are covered by the skin, they are considered to be in a close fit, thus avoiding disengagement. In other words, the redundant distance α is used to reduce the precision requirements for opening the countersunk hole 403 and to adapt to the splicing operations of plates covered with skins of different thicknesses.

[0035] Example 2:

[0036] This embodiment further extends the above embodiment, specifically as follows: Figures 4-6 As shown, the width of the male fastening unit 204 is greater than the width of the female fastening separation seam 103. This prevents the male fastening unit 204 from sliding directly out of the female fastening separation seam 103 due to the relative misalignment angle between the female fastener 10 and the male fastener 20, thus improving its stability.

[0037] Furthermore, the number of female snap-fit ​​separation seams 103 and male snap-fit ​​separation seams 203 is the same and is 3-6, that is, the number of female snap-fit ​​units 104 and male snap-fit ​​units 204 is the same and is 3-6. If the number of female snap-fit ​​separation seams 103 and male snap-fit ​​separation seams 203 is too small, the curvature of the female snap-fit ​​units 104 and 204 will be too large, and their outward expansion and inward contraction deformation ability will be weakened, making it difficult to fasten and separate, and even easy to break the female snap-fit ​​units 104 and 204. On the other hand, if the number of female snap-fit ​​separation seams 103 and male snap-fit ​​separation seams 203 is too large, the curvature of the female snap-fit ​​units 104 and 204 will be too small, making them too easy to deform, resulting in easy fastening and easy separation, and easy disengagement.

[0038] Furthermore, the width of the female fastening unit 104 is greater than the width of the female fastening separation seam 103. This arrangement is to prevent the female fastening unit 104 from being too small to effectively fasten the male fastener 20.

[0039] Furthermore, the inner diameters of the female buckle fixing hole 102 and the male buckle fixing hole 202 are the same, and the outer diameter of the threaded portion of the screw 30 is equal to the inner diameter of either the female buckle fixing hole 102 or the male buckle fixing hole 202. This arrangement allows the screw 30 to center the female buckle 10 and the male buckle 20, preventing them from becoming misaligned during the assembly of the handrail frame 401 and the detachable handrail plate 402, thus preventing them from effectively engaging.

[0040] Furthermore, the angle of inclination of the female mating surface 1041 to the horizontal plane is the same as the angle of inclination of the male mating surface 2041 to the horizontal plane; the angle of inclination of the female disengagement surface 1042 to the horizontal plane is the same as the angle of inclination of the male disengagement surface 2042 to the horizontal plane. This arrangement ensures that when the male buckle base 201 is engaged with the female buckle 10, the female mating surface 1041 and the male mating surface 2041 are always parallel, and the female disengagement surface 1042 and the male disengagement surface 2042 are also always parallel. That is, when the female mating surface 1041 contacts the male mating surface 2041, it is surface contact, and when the female disengagement surface 1042 contacts the male disengagement surface 2042, it is also surface contact. This effectively distributes the force and prevents line contact.

[0041] Furthermore, the female buckle base 101 is also provided with a plurality of through holes 105. The through holes 105 reduce the injection volume of the female buckle 10 while ensuring structural strength, that is, reduce the weight of the female buckle 10, save material costs, shorten injection time, and improve production efficiency.

[0042] Furthermore, the location of the through hole 105 coincides radially with the location of the female fastening unit 104 along the female fastening base 101. That is, the area with ribs at the bottom of the female fastening base 101 coincides radially with the area of ​​the female fastening separation seam 103, making it less likely for the female fastening unit 104 to tear at the female fastening separation seam 103 when it expands and deforms outward, thus improving its strength.

[0043] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0044] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A detachable sheet metal connecting buckle, comprising a female buckle (10), a male buckle (20), and a screw (30), wherein the screw (30) is used to fix the female buckle (10) and the male buckle (20) onto different sheets metal respectively, and the female buckle (10) and the male buckle (20) are engaged to connect the sheets metal, characterized in that: The female buckle (10) includes a female buckle base (101), on which a female buckle fixing hole (102) and a plurality of female buckle separation seams (103) are provided to form a plurality of female buckle engagement units (104). The female buckle engagement unit (104) is provided with a female buckle engagement part at its end. The female buckle engagement part includes a female fitting surface (1041), a female disengagement surface (1042), a female contact surface (1043), a female inner wall surface (1044), and a female end face (1045). The male buckle (20) includes a male buckle base (201), on which a male buckle fixing hole (202) and a plurality of male buckle separation seams (203) are provided to form a plurality of male buckle engagement units (204). The end of the male buckle engagement unit (204) is provided with a male buckle engagement part; the male buckle engagement part includes a male fitting surface (2041), a male disengagement surface (2042), a male contact surface (2043), a male outer wall surface (2044), and a male end face (2045). The height of the inner wall surface (1044) of the female is greater than the sum of the heights of the male mating surface (2041), the male detaching surface (2042), and the male mating surface (2043), so that after the male buckle (20) is inserted into the female buckle (10), the male buckle (20) has an active distance α.

2. The detachable plate connecting buckle according to claim 1, characterized in that: The width of the male fastening unit (204) is greater than the width of the female fastening separation seam (103).

3. The detachable panel connecting buckle according to claim 2, characterized in that: The number of female snap-fit ​​separation seams (103) and male snap-fit ​​separation seams (203) is the same and is 3-6, that is, the number of female snap-fit ​​units (104) and male snap-fit ​​units (204) is the same and is 3-6.

4. The detachable panel connecting buckle according to claim 2, characterized in that: The width of the female fastening unit (104) is greater than the width of the female fastening separation seam (103).

5. The detachable plate connecting buckle according to any one of claims 1-4, characterized in that: The inner diameters of the female fixing hole (102) and the male fixing hole (202) are the same, and the outer diameter of the threaded portion of the screw (30) is equal to the inner diameter of the female fixing hole (102) or the male fixing hole (202).

6. The detachable plate connecting buckle according to any one of claims 1-4, characterized in that: The angle of inclination of the female mating surface (1041) to the horizontal plane is the same as the angle of inclination of the male mating surface (2041) to the horizontal plane; the angle of inclination of the female detachment surface (1042) to the horizontal plane is the same as the angle of inclination of the male detachment surface (2042) to the horizontal plane.

7. The detachable plate connecting buckle according to any one of claims 1-4, characterized in that: The female buckle base (101) is also provided with a plurality of through holes (105).

8. The detachable panel connecting buckle according to claim 7, characterized in that: The location of the through hole (105) coincides with the location of the female fastening unit (104) radially along the female fastening base (101).

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