Pin falling prevention structure for electrical equipment box and electrical equipment box

Abstract

The invention provides an anti-pin-falling structure for an electrical equipment box and the electrical equipment box, and belongs to the technical field of electrical equipment shells, and the anti-pin-falling structure comprises a pin joint part and a stop part; one end of the pin joint component is connected to the opening side of the box body, and the other end is a free end; a containing groove is formed in the pin joint part close to the free end; the pin joint part can be matched with an avoiding hole in the door plate in an inserting manner; one end of the stop part is located in the containing groove and hinged to the pin joint part; the other end of the stop part can be screwed in or out of the accommodating groove; when the stop part is in the stable state, the other end of the stop part is located on the outer side of the containing groove; the stop part is in an instantaneous state when being screwed into the accommodating groove, and the other end of the stop part can be screwed out of the accommodating groove under the action of self gravity; through the arrangement, an operator does not need to always support the stop component, the installation efficiency can be improved, and potential safety hazards can be reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of electrical equipment casings, and in particular relates to an anti-dropping pin structure for an electrical equipment box and the electrical equipment box. Background Art

[0002] The subway traction system box is an electrical equipment box, including a box body and a door panel; one side of the box body has an opening, and the door panel is arranged at the opening position of the box body; a hook seat is fixedly provided at the top of the opening side of the box body; the top of the door panel has a hook and is hung on the hook seat; at this time, the door panel can swing around the hook seat, and finally swing to the position of closing the opening side of the box body, and be locked by the door lock.

[0003] When the door lock is forgotten, the door panel is just hung on the box body; as the subway runs, the door panel is very easy to fall off from the box body; therefore, in the prior art, such as Figure 1 and Figure 2 As shown, a pin body is arranged on the box body, a stopper is rotatably arranged on the pin body, and a corresponding avoidance hole is arranged on the door panel; when the door panel needs to be closed, the operator needs to rotate the stopper to a position parallel to the pin body to ensure that the avoidance hole on the door panel passes through the stopper and the pin body; after the door panel is installed in place, the stopper is rotated to a position perpendicular to the pin body to limit the door panel and prevent it from falling off.

[0004] However, before the door panel passes through the pin body, the operator needs to hold the stopper all the time to keep the stopper parallel to the pin body; in the process of the door panel passing through the stopper, the operator is prone to getting his hands caught, posing a safety hazard. Summary of the invention

[0005] The embodiments of the present invention provide a pin-off prevention structure for an electrical equipment box and the electrical equipment box, aiming to solve the technical problem in the prior art that a pin body has potential safety hazards during use.

[0006] To achieve the above object, the technical solution adopted by the present invention is: Provided is a pin-off prevention structure for an electrical equipment box, comprising: A pin-connecting component, one end of which is used to be connected to the opening side of the box body, and the other end is a free end; the pin-connecting component has a receiving groove near the free end; the pin-connecting component can be plugged and matched with the avoidance hole on the door panel; A stopper component, one end of which is located in the receiving groove and is hinged to the pin-connecting component; the other end of the stopper component can be screwed into or out of the receiving groove; Wherein, when the stop component is in a stable state, the other end of the stop component is located outside the receiving groove; the stop component is screwed into the receiving groove in an instantaneous state, and the other end of the stop component can be screwed out of the receiving groove under the action of its own gravity.

[0007] In a possible implementation, the side wall of the accommodating groove has a limiting surface capable of contacting the inner end of the stop member, and the distance between the inner end of the stop member and the hinge axis is greater than the distance between the limiting surface and the hinge axis; Wherein, when the inner end of the stop component contacts the limiting surface, the other end of the stop component is located outside the accommodating groove and is in a stable state.

[0008] In a possible implementation, the accommodating groove is connected to the bottom of the pin-connecting component, and the other end of the stopping component can be rotated out of the accommodating groove under the action of its own gravity.

[0009] In a possible implementation, the side of the accommodating groove close to the connecting end of the pin-connecting component is a limiting surface, and the limiting surface is an inclined surface; the side of the stop component facing the connecting end of the pin-connecting component is a stopping surface, and when the stop component is in a stable state, the angle between the stopping surface and the limiting surface is an acute angle.

[0010] In a possible implementation, the accommodating groove is connected to the top of the pin-connecting component, and the inner end of the stopper component can be screwed out of the top of the pin-connecting component; When the pin-connecting component is screwed out at the inner end, the distance between the top of the stop component and the top wall of the door panel avoidance hole is greater than the distance between the inner end of the stop component and the top wall of the door panel avoidance hole.

[0011] In a possible implementation, the outer peripheral wall of the connecting end of the pin connection component has a mounting plate, and the mounting plate can contact the opening side of the box; the connecting end of the pin connection component has a threaded hole, and the pin connection component is connected to the box by bolts.

[0012] In a possible implementation, the mounting plate has an annular groove, and a sealing gasket is placed in the annular groove.

[0013] The present invention provides an anti-drop pin structure for an electrical equipment box. Compared with the prior art, when the door panel is closed, the door panel swings around the hook seat, and the avoidance hole on the door panel is plugged and matched with the pin-connecting component; because the other end of the stop component is located on the outside of the receiving groove, the impact force of the door panel on the stop component can cause the stop component to be screwed into the receiving groove during the swinging of the door panel; after the door panel passes through the stop component, the stop component can be screwed out of the receiving groove under the action of its own gravity and is in a stable state; if the door lock is locked, the door panel swings outward around the hook seat, and the stop component can limit the door panel to prevent the door panel from swinging out of the pin-connecting component, thereby achieving the purpose of secondary anti-dropping. Through the above-mentioned setting of the present application, the door panel and the pin-connecting component can be plugged in directly by swinging the door panel from a high place to a low place, and the stop component can limit the door panel that has swung into place, without the need for the operator to support the stop component all the time. Therefore, the above-mentioned setting of the present application can improve the installation efficiency and reduce safety hazards.

[0014] To achieve the above object, another technical solution adopted by the present invention is: Provided is an electrical equipment box, comprising a box body, a door panel and an anti-dropping pin structure; one side of the box body has an opening, the top of the box body opening side has a hook seat, and the top of the door panel is connected to the hook seat through a hook; The anti-dropping pin structure is arranged at a position close to the bottom of the box opening side, and the door panel is provided with an avoidance hole which is plugged and matched with the anti-dropping pin structure.

[0015] The beneficial effects of the electrical equipment box provided by the present invention are the same as those of the anti-pin-dropping structure, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the state of the door panel before closing in the prior art; Figure 2 It is a schematic diagram of the state after the door panel is closed in the prior art; Figure 3 A schematic diagram of a pin-off prevention structure provided by an embodiment of the present invention; Figure 4 A cross-sectional schematic diagram of a pin-off prevention structure provided by an embodiment of the present invention; Figure 5 A schematic diagram of a state of a door panel of an electrical equipment box before closing provided by an embodiment of the present invention; Figure 6 for Figure 5 The enlarged schematic diagram of the middle A part; Figure 7 A schematic diagram of a state in which a door panel of an electrical equipment box is closed provided by an embodiment of the present invention; Figure 8 for Figure 7 Enlarged schematic diagram of part B in the middle.

[0017] Explanation of the accompanying drawings: 1. Box body; 11. Hook seat; 2. Door panel; 3. Pin body; 4. Stop block; 5. Pin-connecting component; 51. Receiving groove; 52. Limiting surface; 53. Mounting plate; 531. Annular groove; 6. Stop component; 61. Inner end; 62. Stop surface; 7. Sealing structure; 8. Articulated shaft. DETAILED DESCRIPTION

[0018] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention 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 present invention and are not intended to limit the present invention.

[0019] Please also read Figures 3 to 8 , now the anti-pin-off structure for an electrical equipment box provided by the present invention is described. The anti-pin-off structure for an electrical equipment box comprises a pin-connecting component 5 and a stopper component 6; one end of the pin-connecting component 5 is used to connect to the opening side of the box body 1, and the other end is a free end; the pin-connecting component 5 has a receiving groove 51 near the free end; the pin-connecting component 5 can be plugged and matched with the avoidance hole on the door panel; one end of the stopper component 6 is located in the receiving groove 51 and is hinged to the pin-connecting component 5; the other end of the stopper component 6 can be screwed into or out of the receiving groove 51; wherein, when the stopper component 6 is in a stable state, the other end of the stopper component 6 is located outside the receiving groove 51; the screwing of the stopper component 6 into the receiving groove 51 is an instantaneous state, and the other end of the stopper component 6 can be screwed out of the receiving groove 51 under the action of its own gravity.

[0020] The present invention provides an anti-dropping pin structure for an electrical equipment box. Compared with the prior art, when the door panel 2 is closed, the door panel 2 swings around the hook seat 11, and the avoidance hole on the door panel 2 is plugged into and matched with the pin-connecting component 5; since the other end of the stop component 6 is located on the outside of the accommodating groove 51, during the swinging process of the door panel 2, the impact force of the door panel 2 on the stop component 6 can cause the stop component 6 to be rotated into the accommodating groove 51; after the door panel 2 passes through the stop component 6, the stop component 6 can be rotated out of the accommodating groove 51 under the action of its own gravity and is in a stable state; if the door lock is locked, during the process of the door panel 2 swinging outward around the hook seat 11, the stop component 6 can limit the door panel 2 to prevent the door panel 2 from swinging outward from the pin-connecting component 5, thereby achieving the purpose of secondary anti-dropping. Through the above-mentioned arrangement of the present application, the door panel 2 and the pin-connecting component 5 can be plugged in directly by swinging the door panel 2 from a high position to a low position, and the stop component 6 can limit the door panel 2 that has been swung into position. There is no need for the operator to support the stop component 6 all the time. Therefore, the above-mentioned arrangement of the present application can improve the installation efficiency and reduce safety hazards.

[0021] In some embodiments, Figures 3 to 8As shown, the side wall of the accommodating groove 51 has a limiting surface 52 that can contact the inner end 61 of the stop component 6, and the distance between the inner end 61 of the stop component 6 and the hinge shaft 8 is greater than the distance between the limiting surface 52 and the hinge shaft 8; therefore, when the inner end 61 of the stop component 6 contacts the limiting surface 52, although the outer end of the stop component 6 has a tendency to continue to rotate outward, the inner end 61 of the stop component 6 cannot continue to rotate in the direction of the limiting surface 52, and this is the maximum rotational position of the outer end of the stop component 6; wherein, when the inner end 61 of the stop component 6 contacts the limiting surface 52, the other end of the stop component 6 is located outside the accommodating groove 51 and is in a stable state.

[0022] It should be noted that there is space in the accommodating groove 51 for the inner end 61 of the stop component 6 to rotate. When the door panel 2 swings to the opening side of the closed box body 1, the other end of the stop component 6 can be screwed into the accommodating groove 51 under the impact of the door panel 2; in the process of the other end of the stop component 6 being screwed into the accommodating groove 51, the inner end 61 of the stop component 6 is screwed away from the limiting surface 52; in the process of the other end of the stop component 6 being screwed out of the accommodating groove 51, the inner end 61 of the stop component 6 gradually approaches the limiting surface 52; when the inner end 61 of the stop component 6 contacts the limiting surface 52, the other end of the stop component 6 stops rotating, and at this time, the stop component 6 is in a stable state.

[0023] When the door panel 2 is not plugged into the pin-jointed component 5, the stop component 6 is located on the inner side of the door panel 2; when the door panel 2 is plugged into the pin-jointed component 5 and closes the opening side of the box body 1, the stop component 6 is located on the outer side of the door panel 2; therefore, after the door panel 2 closes the opening side of the box body 1, the stop component 6 can limit the door panel 2 and prevent the door panel 2 from swinging outward to a state separated from the pin-jointed component 5, thereby achieving the purpose of secondary anti-slippage.

[0024] In some embodiments, Figures 3 to 8 As shown, the receiving groove 51 is connected to the bottom of the pin-connecting component 5, and the other end of the stopping component 6 can be rotated out of the receiving groove 51 under the action of its own gravity.

[0025] It should be noted that the hinge shaft 8 on the stop component 6 is close to the inner end 61 of the stop component 6, so the center of gravity on the stop component 6 is close to the other end of the stop component 6; under the action of the stop component 6's own gravity, the other end of the stop component 6 can rotate toward the outside of the accommodating groove 51.

[0026] When the inner end 61 of the stop component 6 abuts against the limiting surface 52 , the other end of the stop component 6 is in the final screw-out position. At this time, the other end of the stop component 6 can limit the door panel 2 to prevent the door panel 2 from swinging out of the pin-connecting component 5 .

[0027] In some embodiments, Figures 3 to 8As shown, the side of the accommodating groove 51 close to the connecting end of the pin-connecting component 5 is a limiting surface 52, and the limiting surface 52 is an inclined surface; the side of the stopping component 6 facing the connecting end of the pin-connecting component 5 is a stopping surface 62, and when the stopping component 6 is in a stable state, the angle between the stopping surface 62 and the limiting surface 52 is an acute angle.

[0028] It should be noted that the limiting surface 52 is inclined from the top to the bottom, and from the free end to the connecting end; by setting the limiting surface 52 as an inclined surface, the space of the accommodating groove 51 can be increased, which facilitates the other end of the stop component 6 to be screwed into the accommodating groove 51, and then facilitates the pin-connecting component 5 to pass through the avoidance hole on the door panel 2.

[0029] Since the included angle between the stop surface 62 and the limiting surface 52 is an acute angle, when the stop surface 62 contacts the outer wall of the door panel 2 , the door panel 2 can be restricted from further swinging outward, thereby preventing the door panel 2 from separating from the box body 1 .

[0030] In some embodiments, Figures 3 to 8 As shown, the accommodating groove 51 is connected to the top of the pin-connecting component 5, and the inner end 61 of the stop component 6 can be screwed out of the top of the pin-connecting component 5; wherein, when the inner end 61 is screwed out of the pin-connecting component 5, the distance between the top of the stop component 6 and the top wall of the avoidance hole of the door panel 2 is greater than the distance between the inner end 61 of the stop component 6 and the top wall of the avoidance hole of the door panel 2.

[0031] It should be noted that a space is reserved in the receiving groove 51 for the inner end 61 of the stop component 6 to rotate, or the top wall of the receiving groove 51 is connected to the top of the pin-connecting component 5, both of which can provide a rotation space for the inner end 61 of the stop component 6. Taking the top wall of the receiving groove 51 connected to the top of the pin-connecting component 5 as an example, when the inner end 61 of the stop component 6 is screwed out of the receiving groove 51, the distance between the inner end 61 of the stop component 6 and the top wall of the avoidance hole is smaller than the distance between the top of the pin-connecting component 5 and the top wall of the avoidance hole. Therefore, even if the inner end 61 of the stop component 6 is screwed out of the receiving groove 51, it will not affect the plug-in process of the door panel 2 and the pin-connecting component 5.

[0032] In some embodiments, Figures 3 to 8 As shown, the outer peripheral wall of the connecting end of the pin-connecting component 5 has a mounting plate 53, and the mounting plate 53 can contact the opening side of the box body 1; the connecting end of the pin-connecting component 5 has a threaded hole, and the pin-connecting component 5 is connected to the box body 1 by bolts; the mounting plate 53 has an annular groove 531, and the annular groove 531 is used to place a sealing gasket.

[0033] It should be noted that by providing a mounting plate 53 at the connecting end of the pin-connecting component 5, the contact area between the pin-connecting component 5 and the housing 1 can be increased; by providing an annular groove 531 on the mounting plate 53 and providing a sealing gasket in the annular groove 531, after the pin-connecting component 5 is fixed to the housing 1 by bolts, the sealing gasket can seal the bolt connection position and reduce impurities entering the housing 1 from this position.

[0034] Based on the same inventive concept, the present application also provides an electrical equipment box, including a box body 1, a door panel 2 and an anti-pin dropout structure; one side of the box body 1 has an opening, and the top of the opening side of the box body 1 has a hook seat 11, and the top of the door panel 2 is connected to the hook seat 11 through a hook; the anti-pin dropout structure is arranged on the opening side of the box body 1 near the bottom, and the door panel 2 has an avoidance hole that is plugged into and cooperates with the anti-pin dropout structure.

[0035] It should be noted that a sealing structure 7 is provided on the opening side of the box body 1. The sealing structure 7 may be an annular sealing gasket. When the door panel 2 closes the opening side of the box body 1, the door panel 2 abuts against the sealing structure 7, thereby achieving sealing between the door panel 2 and the box body 1 and reducing impurities entering the box body 1.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pin-off prevention structure for an electrical equipment box, characterized in that: include: A pin-connecting component, one end of which is used to be connected to the opening side of the box body, and the other end is a free end; the pin-connecting component has a receiving groove near the free end; the pin-connecting component can be plugged and matched with the avoidance hole on the door panel; A stopper component, one end of which is located in the receiving groove and is hinged to the pin-connecting component; the other end of the stopper component can be screwed into or out of the receiving groove; Wherein, when the stop component is in a stable state, the other end of the stop component is located outside the receiving groove; the stop component is screwed into the receiving groove in an instantaneous state, and the other end of the stop component can be screwed out of the receiving groove under the action of its own gravity.

2. The anti-pin-dropping structure for an electrical equipment box according to claim 1, characterized in that: The side wall of the accommodating groove has a limiting surface capable of contacting the inner end of the stopper component, and the distance between the inner end of the stopper component and the hinge axis is greater than the distance between the limiting surface and the hinge axis; Wherein, when the inner end of the stop component contacts the limiting surface, the other end of the stop component is located outside the accommodating groove and is in a stable state.

3. The anti-pin-dropping structure for an electrical equipment box according to claim 2, characterized in that: The receiving groove is connected to the bottom of the pin-connecting component, and the other end of the stopping component can be rotated out of the receiving groove under the action of its own gravity.

4. The anti-pin-dropping structure for an electrical equipment box according to claim 3, characterized in that: The side of the accommodating groove close to the connecting end of the pin-connecting component is a limiting surface, and the limiting surface is an inclined surface; the side of the stopping component facing the connecting end of the pin-connecting component is a stopping surface, and when the stopping component is in a stable state, the angle between the stopping surface and the limiting surface is an acute angle.

5. The anti-pin-dropping structure for an electrical equipment box according to claim 3, characterized in that: The receiving groove is connected to the top of the pin-connecting component, and the inner end of the stopper component can be screwed out of the top of the pin-connecting component; When the pin-connecting component is screwed out at the inner end, the distance between the top of the stop component and the top wall of the door panel avoidance hole is greater than the distance between the inner end of the stop component and the top wall of the door panel avoidance hole.

6. The anti-pin-dropping structure for an electrical equipment box according to claim 1, characterized in that: The outer peripheral wall of the connecting end of the pin-connecting component has a mounting plate, and the mounting plate can contact the opening side of the box body; the connecting end of the pin-connecting component has a threaded hole, and the pin-connecting component is connected to the box body by bolts.

7. The anti-pin-dropping structure for an electrical equipment box according to claim 6, characterized in that: The mounting plate is provided with an annular groove, and the annular groove is used for placing a sealing gasket.

8. An electrical equipment box, characterized in that: It comprises a box body, a door panel and the anti-pin-dropping structure according to any one of claims 1 to 7; one side of the box body has an opening, the top of the box body opening side has a hook seat, and the top of the door panel is connected to the hook seat through a hook; The anti-dropping pin structure is arranged at a position close to the bottom of the box opening side, and the door panel is provided with an avoidance hole which is plugged and matched with the anti-dropping pin structure.

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