A self-adjusting fastening device for a distribution box

Abstract

The utility model relates to the technical field of distribution box door locks, and discloses a self-adjusting fastening device for a distribution box, comprising a distribution box body, on which a fastening mechanism is arranged; the fastening mechanism comprises a U-shaped plate, a cabinet door, a through hole, a sliding rod, a connecting rod, and a handle, the U-shaped plate is fixedly mounted on the distribution box body by bolts, the cabinet door is arranged on the front side of the U-shaped plate, one end of the connecting rod is fixedly connected to the side of the cabinet door, and the other end is slidably connected to the inside of the through hole, and the through hole is arranged on the U-shaped plate; the utility model installs the U-shaped plate on the distribution box body, so that the cabinet door can control the opening and closing of the distribution box body, and the distribution box body can be opened by holding the handle and pushing it up, so that the opening and closing operation of the distribution box body is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of door locks for distribution boxes, in particular to a self-adjusting fastening device for distribution boxes. Background Art

[0002] The distribution box is a closed or semi-closed metal cabinet that assembles switchgear, measuring instruments, protective electrical appliances and auxiliary equipment. It is widely used because of its advantages such as small size, easy installation, special technical performance, fixed position, unique configuration function and no restrictions on the site. When the distribution box is in use, it is equipped with a closing door for easy opening and maintenance. At the same time, in order to facilitate operation and maintenance, a locking device for controlling the opening and closing of the closing door on the front side of the distribution box needs to be installed on the door panel.

[0003] For example, the Chinese patent publication number is CN213692814U, and the technical solution disclosed in the patent document is as follows: a self-adjusting fastening device for a distribution box, including an adjusting mechanism uniformly distributed on the end surface of the opening end of the distribution box, and a fastening mechanism sleeved on the adjusting mechanism and elastically connected to the adjusting mechanism, wherein the fastening mechanism slides along the outer side of the distribution box toward the inner side of the distribution box, and conflicts with the bearing mechanism uniformly distributed on the contour surface of the cabinet door.

[0004] The existing technology has the following problems:

[0005] The prior art slides the fastening mechanism along the outside of the distribution box toward the inside of the distribution box so that the fastening mechanism conflicts with the bearing mechanism on the cabinet door contour surface, so that the cabinet door is installed in the distribution box and does not require a key to open and close. It is easy to use. However, the fastening mechanism is arranged around the cabinet door, which makes the opening and closing operation of the cabinet door cumbersome, reducing the practicality of the distribution box. Utility Model Content

[0006] 1. Technical issues to be solved

[0007] In view of the deficiencies of the prior art, the utility model provides a self-adjusting fastening device for a distribution box.

[0008] (II) Technical solution

[0009] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a self-adjusting fastening device for a distribution box, comprising a distribution box body, on which a fastening mechanism is arranged; the fastening mechanism comprises a U-shaped plate, a cabinet door, a through hole, a sliding rod, a connecting rod, and a handle, the U-shaped plate is fixedly mounted on the distribution box body by bolts, the cabinet door is arranged on the front side of the U-shaped plate, one end of the connecting rod is fixedly connected to the side of the cabinet door, and the other end is slidably connected to the inside of the through hole, and the through hole is opened on the U-shaped plate.

[0010] Preferably, the sliding rod is fixedly installed inside the through hole and passes through the connecting rod to be slidably connected with the connecting rod. The handle is fixedly installed on the front side of the cabinet door. By setting the handle, the cabinet door can be pushed up conveniently.

[0011] Preferably, a vertical rod is fixedly mounted on the top of the connecting rod, and a trapezoidal block is fixedly mounted on the back of the vertical rod.

[0012] Preferably, a connecting plate is fixedly installed on the side of the U-shaped plate, and the connecting plate is slidably connected to a trapezoidal rod. The inclined surfaces on the trapezoidal block and the inclined surfaces on the trapezoidal rod are arranged relatively to each other. By arranging the trapezoidal rod, the inclined surfaces of the trapezoidal block and the inclined surfaces of the trapezoidal block can be squeezed against each other, thereby automatically realizing self-locking of the cabinet door.

[0013] Preferably, one end of the trapezoidal rod away from the inclined surface is fixedly connected to a circular plate, the outer wall of the trapezoidal rod is sleeved with a spring, and the two ends of the spring are respectively fixedly connected to the outer wall of the circular plate and the outer wall of the connecting plate, and the trapezoidal rod can be driven to reset by setting the spring.

[0014] Preferably, a movable groove is provided on the back side of the cabinet door, and an extension plate is slidably connected to the inside of the movable groove. The top of the extension plate is rotatably connected to a screw rod through an embedded bearing. The screw rod passes through the top of the inner wall of the movable groove and extends to the top of the cabinet door. The screw rod is threadedly connected to the cabinet door and a rotating block is fixedly connected to the top. The screw rod is conveniently rotated by setting the rotating block.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a self-adjusting fastening device for a distribution box, which has the following beneficial effects:

[0017] 1. This self-adjusting fastening device for a distribution box can control the opening and closing of the distribution box body by installing a U-shaped plate on the distribution box body. The distribution box body can be opened by holding the handle and pushing it up, making the opening and closing operation of the distribution box body simple and convenient.

[0018] 2. The self-adjusting fastening device of the distribution box, when the distribution box body is opened, pushes up the cabinet door to drive the trapezoidal block to move upward, so that the inclined surface of the trapezoidal block squeezes the inclined surface of the trapezoidal rod, and the trapezoidal rod moves under pressure until the trapezoidal block is displaced to the top of the trapezoidal rod. The trapezoidal rod is reset to prevent the cabinet door from falling, and the handle can be released without worrying about the cabinet door being closed, thereby achieving self-locking of the cabinet door.

[0019] 3. The self-adjusting fastening device of the distribution box drives the screw rod to rotate by rotating the rotating block, and the screw rod drives the extension plate to move downward, thereby achieving the purpose of adjusting the length of the cabinet door, so that the cabinet door can adapt to distribution box bodies of different lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the trapezoidal rod and the circular plate of the utility model;

[0023] Figure 3 It is a structural schematic diagram of the vertical rod and trapezoidal block of the utility model.

[0024] In the figure: 1. distribution box body; 2. fastening mechanism; 21. U-shaped plate; 22. cabinet door; 23. through hole; 24. sliding rod; 25. connecting rod; 26. handle; 3. vertical rod; 4. trapezoidal block; 5. connecting plate; 6. trapezoidal rod; 7. round plate; 8. spring; 9. extension plate; 10. screw rod; 11. rotating block. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] Example 1

[0027] like Figure 1-3 As shown, the utility model provides a self-adjusting fastening device for a distribution box, including a distribution box body 1, on which a fastening mechanism 2 is arranged; the fastening mechanism 2 includes a U-shaped plate 21, a cabinet door 22, a through hole 23, a sliding rod 24, a connecting rod 25, and a handle 26. The U-shaped plate 21 is fixedly installed on the distribution box body 1 by bolts, and the cabinet door 22 is arranged on the front side of the U-shaped plate 21. One end of the connecting rod 25 is fixedly connected to the side of the cabinet door 22, and the other end is slidably connected to the inside of the through hole 23. The through hole 23 is opened on the U-shaped plate 21, and the sliding rod 24 is fixedly installed inside the through hole 23, and passes through the connecting rod 25 and is slidably connected to the connecting rod 25. The handle 26 is fixedly installed on the front side of the cabinet door 22. By arranging the handle 26, the cabinet door 22 can be easily pushed up.

[0028] In this embodiment, by installing the U-shaped plate 21 on the distribution box body 1, the cabinet door 22 can control the opening and closing of the distribution box body 1. The distribution box body 1 can be opened by holding the handle 26 and pushing it up, making the opening and closing operation of the distribution box body 1 simple and convenient.

[0029] Example 2

[0030] like Figure 1-3As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, a vertical rod 3 is fixedly installed on the top of the connecting rod 25, a trapezoidal block 4 is fixedly installed on the back of the vertical rod 3, a connecting plate 5 is fixedly installed on the side of the U-shaped plate 21, and the connecting plate 5 is slidably connected with a trapezoidal rod 6. The inclined surface on the trapezoidal block 4 and the inclined surface on the trapezoidal rod 6 are relatively arranged. By arranging the trapezoidal rod 6, the inclined surface and the inclined surface of the trapezoidal block 4 can be squeezed against each other, and the self-locking of the cabinet door 22 can be automatically achieved. The end of the trapezoidal rod 6 away from the inclined surface is fixedly connected with a circular plate 7, and the outer wall of the trapezoidal rod 6 is provided with a spring 8, and the two ends of the spring 8 are respectively fixedly connected to the outer wall of the circular plate 7 and the outer wall of the connecting plate 5. By arranging the spring 8, the trapezoidal rod 6 can be driven to reset.

[0031] In this embodiment, when the distribution box body 1 is opened, the cabinet door 22 is pushed up to drive the trapezoidal block 4 to move upward, so that the inclined surface of the trapezoidal block 4 squeezes the inclined surface of the trapezoidal rod 6, and the trapezoidal rod 6 moves under pressure until the trapezoidal block 4 is displaced to the top of the trapezoidal rod 6. The trapezoidal rod 6 is reset to prevent the cabinet door 22 from falling, and the handle 26 can be released without worrying about the cabinet door 22 being closed. The cabinet door 22 can be self-locked, and the trapezoidal rod 6 is pulled away from the trapezoidal block 4 to make the cabinet door 22 automatically fall and close the distribution box body 1.

[0032] Example 3

[0033] like Figure 1-3 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, a movable groove is opened on the back side of the cabinet door 22, and an extension plate 9 is slidably connected inside the movable groove. The top of the extension plate 9 is rotatably connected to a screw rod 10 through an embedded bearing. The screw rod 10 passes through the top of the inner wall of the movable groove and extends to the top of the cabinet door 22. The screw rod 10 is threadedly connected to the cabinet door 22, and a rotating block 11 is fixedly connected to the top. The screw rod 10 is convenient to rotate by setting the rotating block 11.

[0034] In this embodiment, the screw rod 10 is driven to rotate by rotating the rotating block 11, and the screw rod 10 drives the extension plate 9 to move downward, thereby achieving the purpose of adjusting the length of the cabinet door 22, so that the cabinet door 22 can adapt to distribution box bodies 1 of different lengths.

[0035] The working principle of the self-adjusting fastening device of the distribution box is described in detail below.

[0036] like Figure 1-3As shown, when in use, by installing the U-shaped plate 21 on the distribution box body 1, the cabinet door 22 can control the opening and closing of the distribution box body 1. The distribution box body 1 can be opened by holding the handle 26 and pushing it up, so that the opening and closing operation of the distribution box body 1 is simple and convenient. When opening the distribution box body 1, the cabinet door 22 is pushed up to drive the trapezoidal block 4 to move up, so that the inclined surface of the trapezoidal block 4 squeezes the inclined surface of the trapezoidal rod 6, and the trapezoidal rod 6 moves under pressure until the trapezoidal block 4 moves to the top of the trapezoidal rod 6. The trapezoidal rod 6 is reset to prevent the cabinet door 22 from falling, and the handle 26 can be released. There is no need to worry about the cabinet door 22 being closed, and the cabinet door 22 is self-locking. By rotating the rotating block 11 to drive the screw rod 10 to rotate, the screw rod 10 drives the extension plate 9 to move downward, thereby achieving the purpose of adjusting the length of the cabinet door 22, so that the cabinet door 22 can adapt to distribution box bodies 1 of different lengths. The above is the working process of the entire device, and the contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

Claims

1. A self-adjusting fastening device for a distribution box, comprising a distribution box body (1), characterized in that: The distribution box body (1) is provided with a fastening mechanism (2); The fastening mechanism (2) comprises a U-shaped plate (21), a cabinet door (22), a through hole (23), a sliding rod (24), a connecting rod (25), and a handle (26); the U-shaped plate (21) is fixedly mounted on the distribution box body (1) by means of bolts; the cabinet door (22) is arranged on the front side of the U-shaped plate (21); one end of the connecting rod (25) is fixedly connected to the side of the cabinet door (22), and the other end is slidably connected to the inside of the through hole (23); and the through hole (23) is provided on the U-shaped plate (21).

2. A self-adjusting fastening device for a distribution box according to claim 1, characterized in that: The sliding rod (24) is fixedly installed inside the through hole (23) and penetrates the connecting rod (25) to be slidably connected with the connecting rod (25). The handle (26) is fixedly installed on the front side of the cabinet door (22).

3. The self-adjusting fastening device for a distribution box according to claim 1, characterized in that: A vertical rod (3) is fixedly mounted on the top of the connecting rod (25), and a trapezoidal block (4) is fixedly mounted on the back of the vertical rod (3).

4. A self-adjusting fastening device for a distribution box according to claim 3, characterized in that: A connecting plate (5) is fixedly mounted on the side of the U-shaped plate (21), and a trapezoidal rod (6) is slidably connected to the connecting plate (5). The inclined surface on the trapezoidal block (4) and the inclined surface on the trapezoidal rod (6) are arranged opposite to each other.

5. A self-adjusting fastening device for a distribution box according to claim 4, characterized in that: One end of the trapezoidal rod (6) away from the inclined surface is fixedly connected to a circular plate (7), the outer wall of the trapezoidal rod (6) is sleeved with a spring (8), and the two ends of the spring (8) are respectively fixedly connected to the outer wall of the circular plate (7) and the outer wall of the connecting plate (5).

6. The self-adjusting fastening device for a distribution box according to claim 1, characterized in that: A movable groove is provided on the back of the cabinet door (22), an extension plate (9) is slidably connected inside the movable groove, a screw rod (10) is rotatably connected to the top of the extension plate (9) via an embedded bearing, the screw rod (10) passes through the top of the inner wall of the movable groove and extends to the top of the cabinet door (22), the screw rod (10) is threadedly connected to the cabinet door (22), and a rotating block (11) is fixedly connected to the top.

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