Distribution box

Abstract

A distribution box disclosed by the present invention comprises a box body and a box door installed on the box body, the box body is provided with a wiring board, the wiring board is provided with a wiring hole, the wiring hole is internally provided with a fixing sleeve, the fixing sleeve is provided with a fixing hole, the fixing hole is internally provided with a clamping piece, and the clamping piece is provided with a clamping groove. The clamping piece comprises a fixing plate and a plurality of clamping blocks arranged in an annular mode, the fixing plate is provided with a guide groove used for containing the clamping blocks, the outer sides of the clamping blocks are sleeved with annular springs so that the clamping blocks can contract inwards, after the clamping blocks are pressed to expand outwards, the annular springs expand outwards, and the clamping blocks are clamped in the guide groove. And the clamping block moves along the guide groove. The cable fixing device has the beneficial effects that in the process that the cable penetrates through the fixing sleeve to be connected into the box body, the cables of different sizes can be clamped and fixed by the clamping piece, so that the connection between the cable and the box body is more stable and reliable.

Description

Technical Field

[0001] The invention belongs to the technical field of distribution boxes, and in particular relates to a distribution box. Background Art

[0002] Distribution boxes are crucial equipment for distributing electrical energy within power systems. They are primarily used to distribute, control, and protect incoming power according to specific needs. Some distribution boxes are equipped with instruments such as voltmeters, ammeters, and watt-hour meters to monitor circuit status.

[0003] A distribution box consists of a housing and a door. The housing is equipped with multiple wiring holes for connecting cables. Only after the cables are connected to the equipment inside the box can power and signals be transmitted. However, in actual use, the wiring holes of existing distribution boxes lack a structure to secure the cables. This causes the cables to easily wobble due to external forces after being connected, resulting in reduced cable connection stability, especially for small cables. Summary of the Invention

[0004] For existing distribution boxes, the wiring holes lack a mechanism to fix the cables, which causes the cables to shake easily after being connected, affecting the stability and reliability of the cable connection. The present invention proposes a distribution box, comprising a box body and a box door installed on the box body, the box body being provided with a wiring board, the wiring board being provided with a wiring hole, a fixing sleeve being provided in the wiring hole, the fixing sleeve being provided with a fixing hole, a clamping member being provided in the fixing hole, the clamping member comprising a fixing plate and a plurality of clamping blocks arranged in a ring shape, the fixing plate being provided with a guide groove for accommodating the clamping blocks, an annular spring being sleeved on the outside of the clamping blocks to allow the clamping blocks to contract inwardly toward each other, after the cable is inserted into the fixing sleeve, the clamping block is compressed and expands outward, the annular spring expands outward, the clamping block moves along the guide groove, and after the cable completely passes through the fixing sleeve, the clamping block contracts inward and clamps the cable.

[0005] Furthermore, the clamping block is provided with a first clamping head extending inward, and the first clamping head is provided with a first guide surface extending obliquely inward. When the first guide surface is pressed by the cable, the first clamping head expands outward until the cable completely passes through the first clamping head.

[0006] Furthermore, the clamping block is provided with a second clamping head extending inward, and the second clamping head is provided with a second guide surface extending in the same direction as the first guide surface. When the second guide surface is pressed by the cable, the second clamping head expands outward until the cable completely passes through the second clamping head.

[0007] Furthermore, the clamping blocks are provided with arc-shaped spring grooves, the spring grooves between the clamping blocks are arranged in a ring shape, and the annular springs are simultaneously inserted and fitted into the spring grooves arranged in a ring shape.

[0008] Furthermore, a plurality of clamping members are provided in the fixing sleeve, and the clamping members close to one end of the fixing sleeve and the clamping members close to the other end of the fixing sleeve are arranged linearly.

[0009] Furthermore, it also includes a first limiting sleeve and a second limiting sleeve, which are respectively threadedly connected to the upper and lower ends of the fixed sleeve, the bottom of the first fixing sleeve contacts the top of the terminal block, and the top of the second fixing sleeve contacts the bottom of the terminal block to fix the fixed sleeve on the terminal block.

[0010] Furthermore, a first limiting plate and a second limiting plate are threadedly connected in the fixing hole, the first limiting plate abuts against the upper part of the fixing plate, and the second limiting plate abuts against the lower part of the fixing plate, so as to fix the clamp in the fixing hole.

[0011] Furthermore, a prism block is respectively provided on the top of the first limiting sleeve and the bottom of the second limiting sleeve, and a prism groove is provided on one side of the first limiting plate and the second limiting plate.

[0012] Furthermore, a first baffle and a second baffle are provided on the side of the clamping block, and the first baffle and the second baffle are respectively abutted against the upper side and the lower side of the fixing plate to prevent the clamping block from separating from the fixing plate.

[0013] The present invention proposes a distribution box, which has the beneficial effect of providing a fixing sleeve on its wiring board, and providing a clamping member inside the fixing sleeve. The clamping member will expand outward when the cable passes through the fixing sleeve, and will contract inward after the cable passes through the fixing sleeve to clamp and fix the cable, thereby ensuring the stability and reliability of the connection between the cable and the box body, and can also adapt to the access of cables of different sizes, which is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Schematic diagram of the three-dimensional structure of the distribution box in the present invention; Figure 2 Schematic diagram of the three-dimensional structure of the fixed sleeve in the present invention; Figure 3 Schematic diagram of the three-dimensional structure of the clamping member in the present invention; Figure 4 It is a partial structural schematic diagram of the clamping member in the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the clamping block in the present invention.

[0015] The corresponding relationship between the illustration labels and component names in the figure is as follows: 1. Box body; 2. Terminal block; 3. Fixing sleeve; 4. Clamping piece; 5. Clamping block; 11. Box door; 21. Terminal hole; 31. Fixing hole; 32. First limiting sleeve; 33. Second limiting sleeve; 34. Prism block; 35. First limiting plate; 36. Second limiting plate; 37. Prism groove; 41. Fixing plate; 42. Guide groove; 43. Annular spring; 51. First clamping head; 52. Second clamping head; 53. First guide surface; 54. Second guide surface; 55. First baffle; 56. Second baffle; 57. Spring groove. DETAILED DESCRIPTION

[0016] The technical solution of the present invention will be clearly and completely described below in conjunction with embodiments.

[0017] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work should fall within the scope of protection of this application.

[0018] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, for the purposes of describing the embodiments of the present application herein.

[0019] In this application, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe the present invention and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0020] like Figure 1-Figure 5As shown, it is a preferred embodiment of the present invention, a distribution box, including a box body 1 and a box door 11, the box door 11 is movably provided on the box body 1, and a terminal block 2 is fixedly provided at the top and bottom of the box body 1, each of the terminal blocks 2 is provided with a plurality of wiring holes 21, a fixing sleeve 3 is fixedly provided in the wiring hole 21, a fixing hole 31 is vertically penetrated by the inner side of the fixing sleeve 3, and one or more clamping members 4 are fixed in the fixing hole 31, the clamping member 4 includes a fixing plate 41 and a plurality of clamping blocks 5, the fixing plate 41 is provided with a plurality of guide grooves 42 arranged in an annular shape, the clamping blocks 5 are movably provided in the guide grooves 42, and are also arranged in an annular shape with respect to each other, the clamping blocks 5 are provided with arc-shaped spring grooves 57, and the spring grooves 57 between the clamping blocks 5 are also arranged in an annular shape with each other, and an annular spring 43 is inserted in the spring groove 57 so that the annular spring 43 is integrally sleeved on the outside of the clamping block 5.

[0021] like Figure 5 As shown, the clamping block 5 is further provided with a first clamping head 51 extending inwardly, and a first guide surface 53 extending obliquely inwardly is provided on the first clamping head 51. The first guide surfaces 53 on all the first clamping heads 51 collectively form a cone-shaped structure, and the cone-shaped structure is close to one end of the fixed sleeve 3. Furthermore, the clamping block 5 is further provided with a second clamping head 52 extending inwardly, and a second guide surface 54 extending in the same direction as the first guide surface 53 is provided on the second clamping head 52. A cone-shaped structure is also formed between the second guide surfaces 54.

[0022] The cable passes through the fixing hole 31 on the fixing sleeve 3 from the inside or outside of the box 1, and first conflicts with the first guide surface 53 on the first clamping head 51. After the first clamping head 51 is conflicted, it drives the clamping block 5 to move outward along the guide groove 42 and expand until the cable passes through the first clamping head 51. After that, the cable conflicts with the second guide surface 54 on the second clamping head 52 in the same way until it passes through the second clamping head 52. After the cable completely passes through the fixing sleeve 3, the clamping block 5 contracts inward and clamps the cable to prevent it from shaking, thereby ensuring the stability and reliability of the cable connection.

[0023] Furthermore, a plurality of clamping members 4 may be provided in the fixed sleeve 3, and the clamping member 4 near one end of the fixed sleeve 3 and the clamping member 4 near the other end of the fixed sleeve 3 are arranged linearly. This is to ensure that during the insertion of the cable into the fixed sleeve 3, the orientation of each guide surface is consistent with the cable insertion direction and will not block the cable insertion. The plurality of clamping members 4 can increase the clamping force of the cable.

[0024] like Figure 2 and Figure 3As shown, it further includes a first limiting sleeve 32 and a second limiting sleeve 33, and the first limiting sleeve 32 and the second limiting sleeve 33 are respectively threadedly connected to the upper and lower ends of the fixing sleeve 3, the bottom of the first fixing sleeve contacts the top of the terminal block 2, and the top of the second fixing sleeve contacts the bottom of the terminal block 2 to fix the fixing sleeve 3 on the terminal block 2; a first limiting plate 35 and a second limiting plate 36 are also threadedly connected in the fixing hole 31, the first limiting plate 35 abuts against the top of the fixing plate 41, and the second limiting plate 36 abuts against the bottom of the fixing plate 41 to fix the clamping member 4 in the fixing hole 31.

[0025] On the basis of the above, a prism block 34 is provided at the top of the first limiting sleeve 32 and the bottom of the second limiting sleeve 33, and a prism groove 37 is provided on one side of the first limiting plate 35 and the second limiting plate 36. The first limiting sleeve 32, the second limiting sleeve 33, the first limiting plate 35 and the second limiting plate 36 can be quickly disassembled using suitable tools.

[0026] like Figure 5 As shown, further, the two sides of the clamping block 5 are further provided with a first baffle 55 and a second baffle 56 in a fan shape, and the first baffle 55 and the second baffle 56 respectively abut against the upper side and the lower side of the fixed plate 41 to prevent the clamping block 5 from separating from the fixed plate 41.

[0027] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A distribution box, comprising a box body (1) and a box door (11) mounted on the box body (1), wherein the box body (1) is provided with a wiring board (2), and the wiring board (2) is provided with a wiring hole (21), characterized in that: A fixing sleeve (3) is provided in the wiring hole (21), a fixing hole (31) is provided on the fixing sleeve (3), a clamping member (4) is provided in the fixing hole (31), the clamping member (4) comprises a fixing plate (41) and a plurality of clamping blocks (5) arranged in a ring shape, the fixing plate (41) is provided with a guide groove (42) for accommodating the clamping blocks (5), an annular spring (43) is sleeved on the outside of the clamping blocks (5) to allow the clamping blocks (5) to contract inwardly toward each other, and when the clamping blocks (5) are compressed and expanded outwardly, the annular spring (43) expands outwardly, and the clamping blocks (5) move along the guide groove (42).

2. The distribution box according to claim 1, characterized in that: The clamping block (5) is further provided with a first clamping head (51) extending inwardly, and the first clamping head (51) is provided with a first guide surface (53) extending obliquely inwardly, and the first guide surface (53) is pressed to cause the clamping block (5) to expand outwardly.

3. The distribution box according to claim 2, characterized in that: The clamping block (5) is further provided with a second clamping head (52) extending inwardly, and the second clamping head (52) is provided with a second guide surface (54) extending in the same direction as the first guide surface (53).

4. The distribution box according to claim 3, characterized in that: The clamping blocks (5) are provided with arc-shaped spring grooves (57), the spring grooves (57) between the clamping blocks (5) are arranged in a ring shape, and the annular springs (43) are simultaneously inserted and fitted into the spring grooves (57) arranged in a ring shape.

5. The distribution box according to claim 4, characterized in that: A plurality of clamping members (4) are provided in the fixed sleeve (3), and the clamping members (4) close to one end of the fixed sleeve (3) and the clamping members (4) close to the other end of the fixed sleeve (3) are arranged linearly.

6. The distribution box according to claim 1, characterized in that: The fixing sleeve (3) further comprises a first limiting sleeve (32) and a second limiting sleeve (33), wherein the first limiting sleeve (32) and the second limiting sleeve (33) are respectively threadedly connected to the upper end and the lower end of the fixing sleeve (3), the bottom of the first fixing sleeve contacts the top of the wiring board (2), and the top of the second fixing sleeve contacts the bottom of the wiring board (2), so as to fix the fixing sleeve (3) on the wiring board (2).

7. The distribution box according to claim 6, characterized in that: A first limiting plate (35) and a second limiting plate (36) are also threadedly connected in the fixing hole (31), wherein the first limiting plate (35) abuts against the upper portion of the fixing plate (41), and the second limiting plate (36) abuts against the lower portion of the fixing plate (41), so as to fix the clamping member (4) in the fixing hole (31).

8. The distribution box according to claim 7, characterized in that: A prism block (34) is provided on the top of the first limiting sleeve (32) and the bottom of the second limiting sleeve (33), and a prism groove (37) is provided on one side of the first limiting plate (35) and the second limiting plate (36).

9. The distribution box according to claim 1, characterized in that: The side of the clamping block (5) is further provided with a first baffle (55) and a second baffle (56), and the first baffle (55) and the second baffle (56) respectively abut against the upper side and the lower side of the fixed plate (41) to prevent the clamping block (5) from separating from the fixed plate (41).

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