Automatic door closing device for distribution box

Abstract

The utility model discloses an automatic door closing device for a distribution box, which relates to the technical field of distribution boxes and comprises a first elastic piece which enables a box door to rotate towards a door closing direction. The power distribution box further comprises a swing arm, a second elastic piece, a pressure-bearing piece and a traction piece, the swing arm is rotationally installed in the power distribution box body, and the swing arm has a first position completely located in the power distribution box body and a second position stretching out of the power distribution box body and stopping the box door from being closed; the second elastic piece enables the swing arm to rotate towards the first position; the pressure-bearing piece is installed on the lower side of the front portion of the distribution box body, the traction piece is connected between the pressure-bearing piece and the swing arm, and the pressure-bearing piece drives the traction piece to move downwards under pressure so that the swing arm can rotate towards the second position; the automatic door closing device is provided with the pressure-bearing piece for bearing a worker, under the condition that the worker is operating, the pressure-bearing piece moves downwards to enable the swing arm to rotate to the position where the box door is stopped from being closed through the traction piece, and therefore the situation that the worker is affected by the automatic door closing action is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of distribution boxes, in particular to an automatic door closing device for distribution boxes. Background Art

[0002] The door of the distribution box usually adopts a hinged structure that is easy to open and close, which can not only protect the internal structure but also facilitate operation by the staff. If the door of the distribution box is not closed in time, not only will external dust and impurities enter the interior and affect the internal structural components, but it will also pose certain safety hazards.

[0003] In the prior art, the utility model patent with publication number CN212182899U has a power distribution box with an energy storage spring that can automatically close the instrument door, but it will keep the instrument door in a closed state. When the staff is performing maintenance and other operations, the instrument door will continue to put pressure on the staff and interfere with the operation. The utility model patent automatic door closing distribution box with publication number CN203481658U delays the automatic door closing action through a delay relay, which can reduce the interference of the automatic door closing action on the staff's operation. However, the delay time of the delay relay cannot be quickly and flexibly adjusted according to the staff's operation time. After the delay, the door closing action will still interfere with the staff who are operating. Utility Model Content

[0004] The purpose of the utility model is to provide an automatic door closing device for a distribution box in order to solve the above-mentioned problems in the prior art.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An automatic door closing device for a distribution box comprises a first elastic member, which causes the box door to rotate in a closing direction; and further comprises a swing arm, a second elastic member, a pressure-bearing member and a traction member, wherein the swing arm is rotatably mounted in a distribution box body, and the swing arm has a first position completely located in the distribution box body and a second position extending out of the distribution box body and blocking the box door from closing; the second elastic member causes the swing arm to rotate toward the first position; the pressure-bearing member is mounted on the lower front side of the distribution box body, the traction member is connected between the pressure-bearing member and the swing arm, and the pressure-bearing member drives the traction member downward under pressure to rotate the swing arm toward the second position.

[0007] Furthermore, the first elastic member is a torsion spring, which is installed at the hinge of the box door, and has two ends respectively connected to the box door and the distribution box body.

[0008] Furthermore, the swing arm is rotatably connected to the distribution box body through a hinge shaft, and the swing arm rotates vertically. The second elastic member is a torsion spring, which is sleeved on the outside of the hinge shaft, and its two ends are respectively connected to the distribution box body and the swing arm.

[0009] Furthermore, a limiting body is provided in the distribution box body, and when the swing arm is in the first position, the limiting body abuts against the inner side of the swing arm to limit the position.

[0010] Furthermore, it also includes a base, and the distribution box body is installed on the upper side of the base; a groove is provided on the upper side of the base, one end of the pressure-bearing member is hinged in the groove, and the other end is connected to the traction member; the traction member passes through the lower wall of the distribution box body; a third elastic member is connected between the pressure-bearing member and the bottom surface of the groove.

[0011] Furthermore, the third elastic member is V-shaped spring steel.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model has a pressure-bearing member for carrying the staff. When the staff is operating, the pressure-bearing member moves downward and causes the swing arm to rotate to a position that blocks the closing of the box door through the traction member, thereby preventing the automatic door closing action from affecting and colliding with the staff. When the staff leaves the pressure-bearing member, the second elastic member causes the swing arm to rotate inward and no longer blocks the closing of the box door, and the first elastic member can automatically close the box door. The pressure-bearing member of the utility model adopts a swinging structure, and the pressure-bearing member can be movably reset through the third elastic member. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model.

[0016] Figure 3 It is a schematic diagram of the swing arm structure of the utility model.

[0017] Figure 4 It is a schematic diagram of the connection between the swing arm and the pressure-bearing member of the utility model.

[0018] Figure 5 It is a schematic diagram of the box door of the present utility model.

[0019] Figure 6 It is a schematic side view of the cross-sectional structure of the utility model.

[0020] In the figure: 1. first elastic member; 2. swing arm; 3. second elastic member; 4. pressure-bearing member; 5. traction member; 6. limiter; 7. base; 8. third elastic member; 9. groove; 10. distribution box body; 11. box door. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] It should be noted that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0023] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" that may appear should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the term "provided with" that may appear should be understood in a broad sense. For example, the object "provided with" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or an inseparable connection. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] The present invention is further described in detail below in conjunction with the embodiments.

[0026] The specific embodiment of the automatic door closing device for the distribution box provided by the utility model is as follows:

[0027] See also Figure 1-6 , an automatic door closing device for a distribution box, a horizontally rotating box door 11 is hinged on the front side of the distribution box body 10, and a first elastic member 1 is provided. The first elastic member 1 causes the box door 11 to rotate in the closing direction, that is, in the direction of the distribution box body 10.

[0028] In this embodiment, the first elastic member 1 is a torsion spring, which is installed at the hinge of the box door 11, and its two ends are respectively connected to the box door 11 and the distribution box body 10, so that the torsion spring is deformed and stores energy when the door is opened, and the torsion spring can automatically close the box door 11 when no external force is applied. In some other embodiments, the first elastic member 1 can be replaced by a tension spring, and its two ends are respectively connected to the box door 11 and the distribution box body 10, and the ends of the tension spring are both at a certain distance from the hinge of the box door 11.

[0029] In this embodiment, a swing arm 2, a second elastic member 3, a pressure-bearing member 4, a traction member 5 and a base 7 are provided.

[0030] The swing arm 2 is vertically rotatably installed in the distribution box body 10. The swing arm 2 has a first position completely located in the distribution box body 10 and a second position extending out of the distribution box body 10 and blocking the box door 11 from closing; the second elastic member 3 causes the swing arm 2 to rotate toward the first position; the pressure-bearing member 4 is installed on the lower front side of the distribution box body 10, and the traction member 5 is connected between the pressure-bearing member 4 and the swing arm 2. The pressure-bearing member 4 drives the traction member 5 to move downward under pressure to rotate the swing arm 2 to the second position.

[0031] The swing arm 2 is V-shaped, and the middle part of the swing arm 2 is rotatably connected to the distribution box body 10 through a hinge shaft. The swing arm 2 rotates vertically. The second elastic member 3 is a torsion spring and is sleeved on the outside of the hinge shaft of the swing arm 2. The two ends are respectively connected to the distribution box body 10 and the swing arm 2.

[0032] The rear end of the swing arm 2 is connected to the traction member 5, and the front end is used to block the closing of the box door 11. When the traction member 5 moves downward to rotate the swing arm 2 to the second position, the torsion spring is twisted and deformed, and when not driven by external force, the torsion spring rotates the swing arm 2 to the first position.

[0033] A limiting body 6 is provided in the distribution box body 10 . In the present embodiment, the limiting body 6 is cylindrical in shape. When the swing arm 2 is in the first position, the limiting body 6 abuts against the inner side of the swing arm 2 to limit the position.

[0034] The distribution box body 10 is installed on the upper side of the base 7; a groove 9 is provided on the upper side of the base 7, and the groove 9 is located on the lower side of the front of the distribution box body 10; the pressure-bearing member 4 is a plate-like structure, and the front end of the pressure-bearing member 4 is hinged in the groove 9, and the rear end is connected to the traction member 5; the traction member 5 passes through the lower wall of the distribution box body 10, and the lower wall of the distribution box body 10 is provided with a hole for the traction member 5 to pass through; a plurality of third elastic members 8 are connected between the pressure-bearing member 4 and the bottom surface of the groove 9; in this embodiment, the third elastic member 8 is V-shaped spring steel. In some other embodiments, the pressure-bearing member 4 can be vertically raised and lowered along the inner side of the groove 9, and a plurality of vertical coil springs are provided between the pressure-bearing member 4 and the bottom of the groove 9, and the coil springs can reset the pressure-bearing member 4.

[0035] When the worker opens and closes the door 11 and then stands on the pressure-bearing member 4, the rear end of the pressure-bearing member 4 moves downward, and the rear end of the swing arm 2 swings downward through the downward migration of the traction member 5, and the front end of the swing arm 2 swings upward. The front end of the swing arm 2 passes over the hinge of the door 11 and extends to the inside of the door 11, blocking the door 11 from closing. When the worker completes the operation and leaves the pressure-bearing member 4, the third elastic member 8 moves the rear end of the pressure-bearing member 4 upward, and the second elastic member 3 resets the swing arm 2. Figure 6 As shown, the swing arm 2 no longer blocks the door 11 from closing, and the first elastic member 1 can cause the door 11 to close automatically.

[0036] In this embodiment, the traction member 5 can be a steel wire rope. In other embodiments, the traction member 5 can be a hard rod. To cooperate with this, the two ends of the rod need to be hinged with the swing arm 2 and the pressure member 4 respectively, and the lower wall of the distribution box body 10 needs to be provided with a strip hole for the traction member 5 to pass through.

[0037] In this embodiment, the front side of the distribution box body 10 has two opposing box doors 11, the number of the first elastic member 1, the swing arm 2, the second elastic member 3 and the traction member 5 are two, and the two traction members 5 are symmetrically connected to the rear end of the pressure-bearing member 4.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments without creative work, or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An automatic door closing device for a distribution box, comprising a first elastic member (1), the first elastic member (1) causing a box door (11) to rotate in a closing direction; characterized in that: The invention also comprises a swing arm (2), a second elastic member (3), a pressure member (4) and a traction member (5); the swing arm (2) is rotatably mounted in the distribution box body (10); the swing arm (2) has a first position in which it is completely located in the distribution box body (10) and a second position in which it extends out of the distribution box body (10) and blocks the box door (11) from closing; the second elastic member (3) causes the swing arm (2) to rotate toward the first position; the pressure member (4) is mounted on the lower front side of the distribution box body (10); the traction member (5) is connected between the pressure member (4) and the swing arm (2); the pressure member (4) drives the traction member (5) to move downward under pressure, causing the swing arm (2) to rotate toward the second position.

2. The automatic door closing device for a distribution box according to claim 1, characterized in that: The first elastic member (1) is a torsion spring, which is installed at the hinge of the box door (11), and has two ends respectively connected to the box door (11) and the distribution box body (10).

3. The automatic door closing device for a distribution box according to claim 1 is characterized in that: The swing arm (2) is rotatably connected to the distribution box body (10) via a hinge shaft, and the swing arm (2) rotates vertically. The second elastic member (3) is a torsion spring and is sleeved on the outside of the hinge shaft, with two ends respectively connected to the distribution box body (10) and the swing arm (2).

4. The automatic door closing device for a distribution box according to claim 1 or 3, characterized in that: A limiting body (6) is provided in the distribution box body (10); when the swing arm (2) is in the first position, the limiting body (6) abuts against the inner side of the swing arm (2) to limit the position.

5. The automatic door closing device for a distribution box according to claim 1, characterized in that: It also includes a base (7), a distribution box body (10) is mounted on the upper side of the base (7); a groove (9) is provided on the upper side of the base (7); one end of a pressure-bearing member (4) is hinged in the groove (9), and the other end is connected to a traction member (5); the traction member (5) passes through the lower wall of the distribution box body (10); and a third elastic member (8) is connected between the pressure-bearing member (4) and the bottom surface of the groove (9).

6. The automatic door closing device for a distribution box according to claim 5, characterized in that: The third elastic member (8) is made of V-shaped spring steel.

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