Self-closing case door

Abstract

The utility model discloses a self-closing case door, which comprises a case door, and the case door is mounted on the case door. An automatic closing assembly is arranged between the box body and the box door and comprises a fixed support arranged on the box body, and a supporting column is arranged on the fixed support. A movable sleeve is slidably arranged on the outer side of the supporting column and connected with the box door, the lower end of the movable sleeve is an inclined face, the upper end of the fixed support is a second inclined face matched with the inclined face, and the inclined face and the second inclined face are both inclined. A wear-resistant structure is arranged between the fixed support and the movable sleeve, the wear-resistant structure comprises a plurality of spherical grooves formed in the upper edge of the second inclined face in the circumferential direction, balls are rotationally arranged in the spherical grooves, and the upper ends of the balls are tangent to the inclined faces; and an anti-collision structure is arranged between the box body and the box door. According to the utility model, automatic closing of the cabinet door can be realized, noise and impact force during door closing are reduced, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment boxes, in particular to a self-closing chassis door. Background Art

[0002] Outdoor equipment boxes come in various forms such as information boxes, distribution boxes, multimedia boxes, and equipment boxes, playing different roles in different fields. An outdoor equipment box is a box suitable for loading outdoor power equipment or control equipment, usually installed on a utility pole or other locations, which is a metal box with good protection performance and relatively good waterproof performance.

[0003] When opening an outdoor chassis, there is a situation where the door is forgotten to be closed after the operation. Since it is used outdoors, the open chassis door not only exposes the internal components, posing a risk of theft, but also allows rainwater to enter the chassis interior on rainy days, causing accidents such as short circuits in the lines.

[0004] In the prior art, the box door that can be automatically closed is usually realized by a torsion spring. However, the arm of the torsion spring is short, and it cannot achieve a good closing effect for some heavier box doors. Moreover, using the elastic closing of the torsion spring will cause the box door to collide with the box body, reducing the stability of the box body. In view of the above situation, a self-closing chassis door is proposed for improvement. Summary of the Utility Model

[0005] The utility model aims to solve the technical problem in the prior art that there are limitations in the situation of automatically closing the box door by a torsion spring in the prior art, and provides a self-closing chassis door.

[0006] To solve the above technical problem, the technical solution provided by the utility model is: a self-closing chassis door, including a box door, which is installed on the box body; an automatic closing component is provided between the box body and the box door. The automatic closing component includes a fixed support provided on the box body, a cylindrical support column is provided on the fixed support, and a limit cover is provided at the upper end of the support column; a moving sleeve is slidably provided outside the support column, the moving sleeve is connected to the box door, the lower end of the moving sleeve is a slope, and the upper end of the fixed support is a slope two that conforms to the slope. Both the slope and the slope two have an inclination degree.

[0007] A wear-resistant structure is provided between the fixed support and the moving sleeve. The wear-resistant structure includes a plurality of spherical grooves provided along the circumference on the slope two, and a ball is rotatably provided in each spherical groove. The upper ends of the balls are all tangent to the slope.

[0008] An anti-collision structure is provided between the box body and the box door. The anti-collision structure includes a plurality of silica gel strips provided on the back of the box door, and a strip-shaped groove capable of accommodating the silica gel strips is provided on the front of the box body; the thickness of the silica gel strip is greater than that of the strip-shaped groove.

[0009] The front of the box body is provided with symmetric L-shaped magnetic strips, and the back of the box door is provided with a second magnetic strip that can correspond to the magnetic strips.

[0010] Preferably, a rain shield is provided at the upper end of the box body, and the rain shield can cover the box body.

[0011] Preferably, a plurality of ventilation holes are provided on both sides of the box body, and a plurality of covers for covering the ventilation holes are provided on both sides of the box body.

[0012] Preferably, the moving sleeve is a hollow cylinder, and its inner side is a smooth surface, which can be slidably connected to the support column

[0013] Preferably, a handle is provided on the box door, a knob is rotatably provided on the handle, a support rod is connected to the knob, and the support rod extends into the box door and is connected with a limit pin.

[0014] Preferably, a through hole is provided on the box door, and a bearing capable of connecting to the support rod is provided in the through hole.

[0015] The advantages of the present utility model compared with the prior art are as follows:

[0016] When the box door is opened, the box door drives the moving sleeve to move upward. When it is necessary to close the door, the box door loses its restriction. Due to the self-weight of the box door, it will drive the moving sleeve to reset, realizing the automatic closing of the box door. The structure is simple and the effect is good; in addition, since the inclined surface and the second inclined surface need to be frictionally extruded, a plurality of balls are provided to reduce the contact area between the two, which can effectively reduce wear and extend the service life;

[0017] The anti-collision buffer is realized through the silica gel strip and the strip groove, so that when the box door is closed, it will not collide hard with the box body, avoiding the noise of metal collision and also reducing the impact force; in addition, the auxiliary closing of the box door when it is closed is realized through the suction force of the magnetic strip. Description of the Drawings

[0018] Figure 1 is a schematic structural diagram of the present utility model.

[0019] Figure 2 is a schematic structural diagram of the present utility model in the opened state.

[0020] Figure 3 is a schematic structural diagram of the automatic closing assembly of the present utility model.

[0021] Figure 4 is a schematic structural diagram of the wear-resistant structure of the present utility model.

[0022] As shown in the figure: 1. Cabinet, 2. Cabinet door, 3. Rain shield, 4. Ventilation hole, 5. Cover plate, 6. Fixed support, 7. Support column, 8. Limit cover, 9. Moving sleeve, 10. Inclined plane, 11. Second inclined plane, 12. Spherical groove, 13. Ball, 14. Silicone strip, 15. Strip groove, 16. Magnetic strip, 17. Second magnetic strip, 18. Handle, 19. Knob, 20. Limit pin. Detailed implementation mode

[0023] The following further elaborates on the present utility model in conjunction with the attached drawings.

[0024] Example 1. In conjunction with the attached drawings, a self - closing chassis door includes a cabinet door 2, and the cabinet door 2 is installed on the cabinet 1; a rain shield 3 is provided at the upper end of the cabinet 1, and the rain shield 3 can cover the cabinet 1 to prevent water from entering in rainy days when the whole chassis is used outdoors; a number of ventilation holes 4 are provided on both sides of the cabinet 1, and a number of cover plates 5 that can cover the ventilation holes 4 are provided on both sides of the cabinet 1. The inside and outside air exchange of the cabinet 1 is realized through the ventilation holes 4 to avoid situations such as short - circuit caused by too high internal temperature. The cover plates 5 can prevent rainwater from entering the cabinet 1 through the ventilation holes 4 in rainy days.

[0025] Combined with the attached Figure 2 、 3 、4, an automatic closing component is provided between the cabinet 1 and the cabinet door 2. The automatic closing component includes a fixed support 6 provided on the cabinet 1, a cylindrical support column 7 is provided on the fixed support 6, and a limit cover 8 is provided at the upper end of the support column 7; a moving sleeve 9 is slidably provided outside the support column 7, and the moving sleeve 9 is connected to the cabinet door 2. The moving sleeve 9 is a hollow cylinder with a smooth inner surface and can be slidably connected to the support column 7; the limit cover 8 can limit the moving distance of the moving sleeve 9 to prevent it from disengaging from the upper end of the support column 7.

[0026] Combined with the attached Figure 2 、 3 、4, the lower end of the moving sleeve 9 is an inclined plane 10, and the upper end of the fixed support 6 is a second inclined plane 11 that conforms to the inclined plane 10. Both the inclined plane 10 and the second inclined plane 11 are inclined at 45 degrees; thus, it is convenient for the inclined plane 10 to move upward by pressing the second inclined plane 11.

[0027] Combined with the attached Figure 2 、 3 、4, a wear - resistant structure is provided between the fixed support 6 and the moving sleeve 9. The wear - resistant structure includes a number of spherical grooves 12 provided along the circumference on the second inclined plane 11, and a ball 13 is rotatably provided in each spherical groove 12. The upper ends of the balls 13 are tangent to the inclined plane 10; by the balls 13 being tangent to the inclined plane 10, the contact area between the fixed support 6 and the moving sleeve 9 can be greatly reduced, thereby reducing the resistance and friction force, and thus reducing the wear of the fixed support 6 and the moving sleeve 9.

[0028] In the above embodiment, when the box door 2 is opened, the inclined surface 10 of the moving sleeve 9 presses against the second inclined surface 11 of the fixed support 6 and then moves upward to cooperate with the opening of the box door 2. At this time, personnel operate in front of the box body 1, blocking the box door 2 so that it will not close. After the operation is completed, the box door 2 loses the restriction, and due to the gravity of the box door 2 itself, it will drive the moving sleeve 9 to move downward. As a result, the inclined surface 10 rotates along the direction of the second inclined surface 11, driving the box door 2 to close.

[0029] Embodiment 2, in conjunction with the attached Figure 2 , there is an anti-collision structure between the box body 1 and the box door 2. The anti-collision structure includes a plurality of silica gel strips 14 provided on the back of the box door 2, and a strip-shaped groove 15 capable of accommodating the silica gel strips 14 is provided on the front of the box body 1; the thickness of the silica gel strips 14 is greater than that of the strip-shaped groove 15. Thus, when the box door 2 is closed, a part of the silica gel strip 14 is inserted into the strip-shaped groove 15 to form reinforcement, preventing the box door 2 from coming off. At the same time, it also changes the hard contact into soft contact, reducing noise and the force of collision.

[0030] In conjunction with the attached Figure 2 , symmetric L-shaped magnetic strips 16 are provided on the front of the box body 1, and a second magnetic strip 17 capable of corresponding to the magnetic strip 16 is provided on the back of the box door 2. When the box door 2 is closed and approaches the box body 1, it can be assisted by the suction force of the magnetic strip 16 and the second magnetic strip 17 to make the closing fast and effective.

[0031] Embodiment 3, in conjunction with the attached Figure 1 、 2 , a handle 18 is provided on the box door 2, a knob 19 is rotatably provided on the handle 18, a support rod is connected to the knob 19, and the support rod extends into the box door 2 and is connected with a limit pin 20; a through hole is provided on the box door 2, and a bearing capable of connecting with the support rod is provided in the through hole. By rotating the knob 19, the limit pin 20 can be in a horizontal or vertical position. As can be seen from the attached Figure 2 , the width of the front entrance of the box body 1 is smaller than the internal width, so a width difference is formed at the front entrance of the box body 1. When the limit pin 20 rotates to the horizontal position, it will be stuck behind the entrance to form a restriction. At this time, pulling the handle 18 cannot open the box door 2. When the limit pin 20 is rotated to the vertical position, the box door 2 can be opened. Thus, a certain restriction can be formed on the box door 2 to prevent accidental opening or coming off.

[0032] The above describes the present invention and its embodiments. This description is not restrictive. What is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and, without departing from the creative purpose of the present invention, design similar structural forms and embodiments to this technical solution without creative efforts, they should all fall within the protection scope of the present invention.

Claims

1. A self-closing chassis door, comprising a door (2) which is installed on a cabinet (1); characterized in that: An automatic closing assembly is provided between the box body (1) and the box door (2). The automatic closing assembly includes a fixed support (6) provided on the box body (1). A cylindrical support pillar (7) is provided on the fixed support (6). A limit cover (8) is provided at the upper end of the support pillar (7). A moving sleeve (9) is slidably provided on the outer side of the support pillar (7). The moving sleeve (9) is connected to the box door (2). The lower end of the moving sleeve (9) is an inclined surface (10). The upper end of the fixed support (6) is an inclined surface two (11) that conforms to the inclined surface (10). Both the inclined surface (10) and the inclined surface two (11) are inclined at 45 degrees. A wear-resistant structure is provided between the fixed support (6) and the moving sleeve (9). The wear-resistant structure includes a plurality of spherical grooves (12) provided along the circumference on the inclined surface two (11). A ball (13) is rotatably provided in each of the spherical grooves (12). The upper ends of the balls (13) are tangent to the inclined surface (10). An anti-collision structure is provided between the box body (1) and the box door (2). The anti-collision structure includes a plurality of silica gel strips (14) provided on the back of the box door (2). A strip-shaped groove (15) capable of accommodating the silica gel strips (14) is provided on the front of the box body (1). The thickness of the silica gel strips (14) is greater than that of the strip-shaped groove (15). Symmetric L-shaped magnetic strips (16) are provided on the front of the box body (1). A magnetic strip two (17) capable of corresponding to the magnetic strips (16) is provided on the back of the box door (2).

2. The self-closing chassis door according to claim 1, wherein: A rain shield (3) is provided at the upper end of the box body (1). The rain shield (3) can cover the box body (1).

3. The self - closing chassis door according to claim 1, wherein: A plurality of ventilation holes (4) are provided on both sides of the box body (1). A plurality of covers (5) capable of covering the ventilation holes (4) are provided on both sides of the box body (1).

4. The self-closing chassis door according to claim 1, characterized in that: The moving sleeve (9) is a hollow cylinder with a smooth inner surface and can be slidably connected to the support pillar (7).

5. The self-closing chassis door according to claim 1, wherein: A handle (18) is provided on the box door (2). A knob (19) is rotatably provided on the handle (18). The knob (19) is connected with a support rod, and the support rod extends into the box door (2) and is connected with a limit pin (20).

6. The self-closing chassis door according to claim 5, wherein: A through hole is provided on the box door (2), and a bearing capable of connecting with the support rod is provided in the through hole.

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