Buckle assembly for electrical equipment installation

Abstract

The utility model discloses a buckle assembly used for electrical equipment installation, the buckle assembly is used for fixing electrical equipment on a guide rail, the electrical equipment comprises a housing, the center of the bottom of the housing is provided with a guide rail groove for accommodating the guide rail, the buckle assembly comprises a first buckle, a second buckle and an extension rod, the first buckle and the second buckle are arranged on the two opposite sides of a guide rail groove in the bottom of the shell, one end of the extension rod is fixedly connected with the first buckle, and when the first buckle and the second buckle clamp a guide rail, the other end of the extension rod is tightly attached to the second buckle; when the first buckle moves in the direction away from the guide rail, the first buckle is separated from the guide rail, and meanwhile, the extension rod moves under the condition that the extension rod is tightly attached to the second buckle to drive the second buckle to rotate and break away from the guide rail. The electrical equipment can be mounted and dismounted on the guide rail more simply and conveniently, clamping is firm, forward mounting of the electrical equipment is achieved, and dismounting and mounting convenience is improved.

Description

Technical Field

[0001] This utility model relates to the field of fastening technology, specifically to a fastening assembly for the installation of electrical equipment. Background Technology

[0002] Currently, most electrical equipment on the market is installed using DIN rail mounting (DIN stands for German Industrial Standard). To allow for detachable mounting of electrical equipment onto the rail, a metal spring structure is typically used. However, existing metal spring structures usually require auxiliary tools for installation and removal, making it inconvenient and demanding on workers. Tool-free connection and fixing structures mostly use a central or one-end drive method, with a rotary drive structure in the middle or at one end and clips on both sides. The rotary drive structure moves the clips to grip or disengage from the rail. This structure is relatively complex, has insufficient clamping force, and allows the electrical equipment to easily loosen.

[0003] Therefore, in order to facilitate the installation of electrical equipment, there is an urgent need for a snap-fit ​​assembly with a simple structure and a firm gripping effect on the mounting rail. Utility Model Content

[0004] To address the aforementioned issues, this utility model provides a snap-fit ​​assembly for installing electrical equipment, which facilitates the clamping and disassembly of electrical equipment on guide rails, making installation and disassembly on guide rails easier, ensuring secure clamping, enabling forward installation of electrical equipment, and improving ease of assembly and disassembly.

[0005] The technical solution adopted in this utility model is:

[0006] This utility model provides a snap-fit ​​assembly for installing electrical equipment. The snap-fit ​​assembly is used to fix the electrical equipment on a guide rail. The electrical equipment includes a housing, and a guide rail groove for accommodating the guide rail is opened in the center of the bottom of the housing. The snap-fit ​​assembly includes a first snap-fit, a second snap-fit, and an extension rod. The first snap-fit ​​and the second snap-fit ​​are disposed on opposite sides of the guide rail groove at the bottom of the housing. One end of the extension rod is fixedly connected to the first snap-fit. When the first snap-fit ​​and the second snap-fit ​​clamp the guide rail, the other end of the extension rod is tightly fitted to the second snap-fit.

[0007] When the first latch moves away from the guide rail, it separates from the guide rail. At the same time, the extension rod is displaced while the second latch is in close contact, causing the second latch to rotate and disengage from the guide rail.

[0008] Furthermore, the second latch includes a second latch hook and a second latch elastic arm. The second latch hook is rotatable, with a bent portion at the end away from the guide rail groove and a clamping portion at the end near the guide rail groove. The clamping portion and the second latch elastic arm are fixedly connected. When the first and second latches clamp the guide rail, the second latch hook and the extension rod are tightly fitted together. The clamping portion of the second latch hook is used to clamp the guide rail. When the first latch moves away from the guide rail, the first latch separates from the guide rail. At the same time, the extension rod is displaced while the second latch hook is tightly fitted together, causing the second latch elastic arm to undergo elastic deformation and the bent portion to rotate downwards, causing the clamping portion to move away from the guide rail, and the second latch disengages from the guide rail.

[0009] Furthermore, the extension rod has a groove. When the first and second latches clamp the guide rail, the top of the second latch hook is engaged in the groove. When an external force is applied to move the first latch away from the guide rail, the second latch is pressed down at the same time, causing the top of the second latch to move downward. The second latch is lower than the extension rod as a whole, and the groove of the extension rod moves closer to the guide rail. The second latch is pressed by the ungrooved part of the extension rod, and the elastic arm of the second latch undergoes elastic deformation. The bent part rotates downward, causing the clamping part to move away from the extension rod, the guide rail loosens, and the second latch disengages from the guide rail.

[0010] Furthermore, when the second latch hook is not clamping the guide rail, the top of the second latch hook is still tightly fitted with the groove. When the first latch moves towards the guide rail, the first latch is pressed against the guide rail. At the same time, the extension rod is displaced while the second latch hook is tightly fitted. When the extension rod moves to the top of the groove that can accommodate the second latch hook, the elastic arm of the second latch returns to its original shape, and the bent part rotates upward, so that the clamping part is pressed against the extension rod and continues to clamp the guide rail.

[0011] Furthermore, the second snap-on elastic arm of the second snap-on extends downward and then extends away from the guide rail groove. The part extending away from the guide rail groove is the second snap-on fixing end, which is used to fix the second snap-on elastic arm.

[0012] Furthermore, two protrusions are provided on the second buckle fixing end to prevent the second buckle fixing end from rotating.

[0013] Furthermore, the first buckle includes a first buckle hook, a first buckle handle, and a first buckle limiting block. The first buckle hook is used to clamp one end of the guide rail. The first buckle handle is located at the end of the first buckle furthest from the guide rail groove. The first buckle limiting block is installed on the bottom wall of the first buckle. The housing is located below the first buckle and has a first limiting groove and a second limiting groove. The first buckle limiting block can engage with the first limiting groove and the second limiting groove. The first limiting groove and the second limiting groove are located on the same side. The distance between the second limiting groove and the guide rail groove is greater than the distance between the first limiting groove and the guide rail groove.

[0014] Furthermore, when an external force is applied to move the first latch away from the guide rail, the second latch rotates and engages between the two protrusions.

[0015] Furthermore, both the curved portion and the clamping portion of the second buckle hook have downwardly sloping surfaces.

[0016] The beneficial effects of this utility model are:

[0017] The first latch hook of this utility model can move away from the guide rail groove, and the second latch hook can rotate. The first latch hook and the second latch hook clamp the two ends of the guide rail. When the first latch moves away from the guide rail, the latch hook of the first latch separates from the guide rail, and at the same time drives the latch hook of the second latch to rotate and disengage from the guide rail, which facilitates the disassembly and installation of electrical equipment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a snap-fit ​​assembly for installing electrical equipment and the housing of the electrical equipment according to the present invention.

[0019] In the figure, 1 is the buckle assembly, 11 is the first buckle, 12 is the second buckle, 2 is the housing, 21 is the first limiting groove, and 22 is the second limiting groove.

[0020] Figure 2 This is a schematic diagram of the specific structure of a snap-fit ​​assembly for installing electrical equipment according to the present invention.

[0021] In the figure, 13 is the extension rod, 111 is the first buckle hook, 112 is the first buckle limiting block, 113 is the first buckle handle, 121 is the second buckle hook, 122 is the second buckle elastic arm, 123 is the second buckle fixing end, 1211 is the bending part, and 1212 is the clamping part.

[0022] Figure 3 This is an installation diagram of a snap-fit ​​assembly for installing electrical equipment according to the present invention.

[0023] In the diagram, 1 is the snap-fit ​​assembly, 2 is the housing, and 4 is the guide rail.

[0024] Figure 4 This is a schematic diagram of a clip assembly for clamping guide rails used in the installation of electrical equipment according to the present invention.

[0025] In the diagram, 1211 is the curved part, 1212 is the clamping part, 1231 is the protrusion, and 4 is the guide rail.

[0026] Figure 5 This is a schematic diagram of a clip assembly disassembly guide rail for electrical equipment installation according to the present invention.

[0027] In the figure, 1211 is the bending part, 1212 is the clamping part, and 131 is the groove on the extension rod.

[0028] Figure 6 This is a schematic diagram of a snap-fit ​​assembly for installing electrical equipment, which re-clamps the guide rail.

[0029] In the diagram, 1211 is the bending part, 1212 is the clamping part, and 4 is the guide rail. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solution of this utility model will be clearly and completely described below in conjunction with the accompanying drawings and a preferred embodiment.

[0031] refer to Figure 1 and Figure 2 This embodiment provides a snap-fit ​​assembly for installing electrical equipment. The snap-fit ​​assembly 1 is used to fix the electrical equipment on the guide rail 4. The electrical equipment includes a housing 2. A guide rail groove for accommodating the guide rail 4 is opened in the center of the bottom of the housing 2. The snap-fit ​​assembly 1 includes a first snap-fit ​​11, a second snap-fit ​​12, and an extension rod 13. The first snap-fit ​​11 and the second snap-fit ​​12 are disposed on opposite sides of the guide rail groove at the bottom of the housing 2. One end of the extension rod 13 is fixedly connected to the first snap-fit ​​11. When the first snap-fit ​​11 and the second snap-fit ​​12 clamp the guide rail 4, the other end of the extension rod 13 is tightly fitted to the second snap-fit ​​12.

[0032] When the first latch 11 moves away from the guide rail 4, the first latch 11 separates from the guide rail 4. At the same time, the extension rod 13 is displaced while the second latch 12 is in close contact, causing the second latch 12 to rotate and disengage from the guide rail 4.

[0033] The latch assembly 1 also includes an extension rod 13. The first latch 11 has a first latch hook 111, and a notch is formed between the bottom of the first latch hook 111 and the extension rod 13 for clamping the bottom of the guide rail 4. The second latch 12 has a second latch hook 121. The first latch 11 can move away from the guide rail groove, and the second latch 12 can rotate. The first latch 11 and the second latch 12 clamp both ends of the guide rail 4. The first latch 11 also includes a first latch handle 113 and a first latch limiting block 112. The second latch 12 also includes a second latch elastic arm 122 and a second latch fixing end 123. One end of the extension rod 13 is connected to the first latch hook 111, and the other end is connected to the second latch hook 121. The first buckle hook 121 is connected to the second buckle elastic arm 122. The first buckle hook 111 is located at the end of the first buckle 11 closest to the guide rail groove. The first buckle handle 113 is located at the end of the first buckle 11 furthest from the guide rail groove. The first buckle limiting block 112 is installed on the bottom wall of the first buckle 11. The housing 2 is located below the first buckle 11 and has a first limiting groove 21 and a second limiting groove 22. The first buckle limiting block 112 can engage with the first limiting groove 21 and the second limiting groove 22. The first limiting groove 21 and the second limiting groove 22 are located on the same side. The distance between the second limiting groove 22 and the guide rail groove is greater than the distance between the first limiting groove 21 and the guide rail groove.

[0034] Continue to refer to Figure 2 The second latch hook 121 is rotatable. The end of the second latch hook 121 furthest from the guide rail groove is a bent portion 1211, which can rotate around the axis of the second latch hook 121. The end of the second latch hook 121 closest to the guide rail groove is a clamping portion 1212. The clamping portion 1212 and the second latch elastic arm 122 are fixedly connected. When the first latch 11 and the second latch 12 clamp the guide rail, the second latch hook 121 and the extension rod 13 are tightly engaged. The clamping part 1212 is used to clamp the guide rail. When the first buckle 11 moves away from the guide rail 4, the first buckle 11 separates from the guide rail 4. At the same time, the extension rod 13 is displaced while the second buckle hook 121 is in close contact with it. This causes the second buckle elastic arm 122 to undergo elastic deformation and the bent part 1211 to rotate downward. This causes the clamping part 1212 to move away from the guide rail 4, and the second buckle 12 separates from the guide rail 4. However, at this time, the top of the second buckle hook 121 is still in close contact with the extension rod 13.

[0035] The better ones, continue to refer to. Figure 4 and Figure 5To facilitate the disassembly and installation of the guide rail, the extension rod 13 has a groove 131. When the first buckle 11 and the second buckle 12 clamp the guide rail 4, the top of the second buckle hook 121 is locked in the groove 131. When an external force is applied to move the first buckle 11 away from the guide rail, the second buckle 12 is pressed at the same time, causing the top of the second buckle hook 121 to move downward and below the groove 131. The groove 131 of the extension rod 13 moves closer to the guide rail 4, and the second buckle 12 is pressed by the part of the extension rod 13 without the groove 131. The elastic arm 122 of the second buckle undergoes elastic deformation, and the bent part 1211 rotates downward, causing the clamping part 1212 to move away from the extension rod 13. The guide rail 4 loosens, and the second buckle 12 and the guide rail 4 disengage. At this time, the top of the second buckle hook 121 is still tightly attached to the extension rod 13.

[0036] When the first latch 11 moves toward the guide rail, the first latch 11 presses against the guide rail 4. At the same time, the extension rod 13 is displaced while the second latch hook 121 is in close contact. When the extension rod 13 moves to the top of the groove 131, which can accommodate the second latch hook 121, the second latch elastic arm 122 returns to its original shape, and the bent part 1211 rotates upward, so that the clamping part 1212 presses against the extension rod 13 and continues to clamp the guide rail 4, which is convenient and quick.

[0037] Preferably, the second snap-fit ​​elastic arm 122 of the second snap-fit ​​12 extends downward and then extends away from the guide rail groove. The part extending away from the guide rail groove is the second snap-fit ​​fixing end 123, which is used to fix the second snap-fit ​​elastic arm 122.

[0038] Preferably, the second buckle 12 has two protrusions 1231 on its fixed end to prevent the second buckle fixed end 123 from rotating. When an external force is applied to move the first buckle 11 away from the guide rail 4, the second buckle 12 rotates and engages between the two protrusions 1231.

[0039] Preferably, in order to make disassembly and installation easier, when the first latch 11 moves toward or away from the guide rail, the friction between the extension rod 13 and the second latch 12 is reduced, and the rotation of the bending part 1211 is facilitated. Both the bending part 1211 and the clamping part 1212 have downward inclined surfaces.

[0040] refer to Figures 1-4When installing electrical equipment with the snap-fit ​​assembly of this utility model on a guide rail, the first snap-fit ​​hook 111 and the second snap-fit ​​hook 121 can both abut against the guide rail 4 in two ways to clamp the guide rail 4. The first method: the first snap-fit ​​limiting block 112 engages in the first limiting groove 21, pressing the main body of the electrical equipment against the guide rail 4 to complete the installation of the main body of the equipment and the guide rail. The second method: pulling the first snap-fit ​​handle 113 upwards moves the first snap-fit ​​limiting block 112 from the first limiting groove 21 to the second limiting groove 22 of the electrical equipment housing 2. The latch hook 111 moves upward, expanding the clamping space. Simultaneously, the extension rod 13 drives the second latch hook 12 to rotate, that is, the bent part 1211 rotates downward, expanding the clamping space so that the guide rail 4 enters the clamping space. Then, the first latch handle 113 is pushed, and the first latch limiting block 112 moves from the second limiting groove 22 of the electrical equipment housing to the first limiting groove 21, reducing the clamping space. At the same time, the extension rod 13 drives the second latch hook 12 to rotate, that is, the bent part 1211 rotates upward, and the top of the second latch hook 121 is engaged in the groove 131 of the extension rod 13. Both installation methods are simple and convenient, and the second method, as an improvement, is particularly convenient.

[0041] refer to Figure 5 When an electrical device equipped with the snap-fit ​​assembly of this utility model needs to be detached from the guide rail 4, simply pull the first snap-fit ​​handle 113 outward. When the first snap-fit ​​11 is moved away from the guide rail 4 by an external force, the first snap-fit ​​hook 111 separates from the guide rail 4. At the same time, press the second snap-fit ​​12, causing the top of the second snap-fit ​​hook 121 to move downward and below the groove 131. The groove 131 of the extension rod 13 moves closer to the guide rail 4, and the second snap-fit ​​12 is pressed by the ungrooved part of the extension rod 13. The elastic arm 122 of the second snap-fit ​​undergoes elastic deformation, and the bent part 1211 rotates downward, causing the clamping part 1212 to move away from the extension rod 13. The guide rail 4 loosens, and the second snap-fit ​​12 disengages from the guide rail 4. At this time, the top of the second snap-fit ​​hook 121 is still tightly attached to the extension rod 13. Disassembly can be easily achieved.

[0042] refer to Figure 6 When it is necessary to continue installing the guide rail 4, place the guide rail 4 into the guide rail groove, push the first buckle handle 113, and when the first buckle limiting block 112 moves from the second limiting groove 22 of the electrical equipment housing to the first limiting groove 21, the extension rod 13 will move. When the extension rod 13 moves to the top of the groove 131 that can accommodate the second buckle hook 121, the second buckle elastic arm 122 returns to its original state, the bent part 1211 rotates upward, and the top of the second buckle hook 121 is locked in the groove 131 of the extension rod 13. At this time, the clamping part 1212 can continue to clamp the guide rail.

[0043] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications are also within the protection scope of the present utility model.

Claims

1. A snap-fit ​​assembly for installing electrical equipment, the snap-fit ​​assembly (1) being used to fix the electrical equipment onto a guide rail (4), the electrical equipment including a housing (2), a guide rail groove for accommodating the guide rail (4) being provided at the center of the bottom of the housing (2), characterized in that, The buckle assembly (1) includes a first buckle (11), a second buckle (12), and an extension rod (13). The first buckle (11) and the second buckle (12) are located on opposite sides of the bottom guide rail groove of the housing (2). One end of the extension rod (13) is fixedly connected to the first buckle (11). When the first buckle (11) and the second buckle (12) clamp the guide rail, the other end of the extension rod (13) is tightly fitted to the second buckle (12). When the first latch (11) moves away from the guide rail (4), the first latch (11) separates from the guide rail (4), and at the same time the extension rod (13) is displaced while the second latch (12) is in close contact, causing the second latch (12) to rotate and disengage from the guide rail (4).

2. A snap-fit ​​assembly for installing electrical equipment according to claim 1, characterized in that, The second latch (12) includes a second latch hook (121) and a second latch elastic arm (122). The second latch hook (121) is rotatable. The end of the second latch hook (121) away from the guide rail groove is a bent part (1211), and the end of the second latch hook (121) near the guide rail groove is a clamping part (1212). The clamping part (1212) is fixedly connected to the second latch elastic arm (122). When the first latch (11) and the second latch (12) clamp the guide rail (4), the second latch hook (121) and the extension rod (13) When the first buckle (11) moves away from the guide rail (4), the first buckle (11) separates from the guide rail (4). At the same time, the extension rod (13) is displaced while the second buckle hook (121) is in close contact with the second buckle hook (121), causing the elastic arm (122) of the second buckle to undergo elastic deformation and the bent part (1211) to rotate downward, causing the clamping part (1212) to move away from the guide rail (4), and the second buckle (12) and the guide rail (4) to separate.

3. A snap-fit ​​assembly for installing electrical equipment according to claim 2, characterized in that, The extension rod (13) has a groove (131). When the first buckle (11) and the second buckle (12) clamp the guide rail (4), the top of the second buckle hook (121) is stuck in the groove (131). When an external force is applied to move the first buckle (11) away from the guide rail (4), the second buckle (12) is pressed at the same time, causing the top of the second buckle (12) to move downward. The second buckle (12) is lower than the extension rod (13). The groove (131) of the extension rod (13) moves closer to the guide rail (4). The second buckle (12) is pressed by the part of the extension rod (13) that is not grooved (131). The elastic arm (122) of the second buckle undergoes elastic deformation. The bent part (1211) rotates downward, causing the clamping part (1212) to move away from the extension rod (13). The guide rail (4) loosens, and the second buckle (12) and the guide rail (4) separate.

4. A snap-fit ​​assembly for installing electrical equipment according to claim 3, characterized in that, When the second latch hook (121) is not clamping the guide rail (4), the top of the second latch hook (121) is still tightly fitted with the groove (131). When the first latch (11) moves towards the guide rail, the first latch (11) is pressed against the guide rail (4). At the same time, the extension rod (13) is displaced while the second latch hook (121) is tightly fitted. When the extension rod (13) moves to the top of the groove (131) which can accommodate the second latch hook (121), the second latch elastic arm (122) returns to its original state, and the bent part (1211) rotates upward, so that the clamping part (1212) is pressed against the extension rod (13) and continues to clamp the guide rail (4).

5. A snap-fit ​​assembly for installing electrical equipment according to claim 2, characterized in that, The second buckle elastic arm (122) of the second buckle (12) extends downward and then extends away from the guide rail groove. The part extending away from the guide rail groove is the second buckle fixing end (123), which is used to fix the second buckle elastic arm (122).

6. A snap-fit ​​assembly for installing electrical equipment according to claim 2, characterized in that, The second buckle (12) has two protrusions (1231) on its fixing end (123) to prevent the second buckle fixing end (123) from rotating.

7. A snap-fit ​​assembly for installing electrical equipment according to claim 1, characterized in that, The first buckle (11) includes a first buckle hook (111), a first buckle handle (113), and a first buckle limiting block (112). The first buckle hook (111) is used to clamp one end of the guide rail (4). The first buckle handle (113) is located at the end of the first buckle (11) furthest from the guide rail groove. The first buckle limiting block (112) is installed on the bottom wall of the first buckle (11). The housing (2) is located below the first buckle (11) and has a first limiting groove (21) and a second limiting groove (22). The first buckle limiting block (112) can engage with the first limiting groove (21) and the second limiting groove (22). The first limiting groove (21) and the second limiting groove (22) are located on the same side. The distance between the second limiting groove (22) and the guide rail groove is greater than the distance between the first limiting groove (21) and the guide rail groove.

8. A snap-fit ​​assembly for installing electrical equipment according to claim 6, characterized in that, When an external force is applied to move the first latch (11) away from the guide rail (4), the second latch (12) rotates and engages between the two protrusions (1231).

9. A snap-fit ​​assembly for installing electrical equipment according to claim 2, characterized in that, The curved portion (1211) and the clamping portion (1212) of the second buckle hook (121) both have downward sloping surfaces.

Images