CN217334822U

CN217334822U - Anti-falling mechanism

Info

Publication number: CN217334822U
Application number: CN202123384037.3U
Authority: CN
Inventors: 胡蒋文; 陶霞; 雷义春; 赵川
Original assignee: Shanghai Liangxin Electrical Co Ltd
Current assignee: Shanghai Liangxin Electrical Co Ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-08-30
Anticipated expiration: 2031-12-29

Abstract

A fall prevention mechanism is characterized in that: rotatable dress of body of rod (1101) one end is in drawer shell (1) side, and the other end is equipped with spacing slotted hole (1101a), on the drawer shell (1) side with spacing slotted hole (1101a) correspond the department and be provided with spacing post (1a), be equipped with backing pin (1101b) on the body of rod (1101), backing pin (1101b) are followed via hole (104) on drawer shell (1) side are worn out, on the cubical switchboard body with backing pin (1101b) correspond the department and be equipped with dog (1102). The anti-falling mechanism is simple in structure, the anti-falling device conforms to hand-held or holding gestures, and independent operation is not needed when the drawer is pulled out.

Description

Anti-falling mechanism

Technical Field

The utility model belongs to the technical field of the cubical switchboard, specifically say so and relate to a dropproof mechanism for low-voltage switchgear drawer unit.

Background

The low-voltage switch cabinet is widely applied to power plants, substations, industrial and mining enterprises and high-rise buildings. In the field of low-voltage distribution equipment of an electric power system, a drawer type switch cabinet belongs to relatively high-grade distribution equipment and consists of a plurality of drawer functional units. The drawer functional unit is characterized in that a main functional electric device is arranged in a shell formed by a drawer mechanical structure, and the drawer mechanical structure comprises mechanisms of pushing, withdrawing, interlocking and the like, and has the characteristics of convenience in maintenance, convenience in interchange, safety, reliability and the like. The drawer of the low-voltage switch cabinet in the current market is generally in a hand-operated propulsion mode and a hand-pulled propulsion mode, is used for controlling safe operation of the drawer functional unit in the process from entering to connecting with all levels of a main circuit in the switch cabinet, and has three position states of connection, test and isolation.

In the switching process of connecting, testing and isolating positions of the drawer unit of the existing low-voltage switch cabinet, the traditional switching means is generally realized by pushing the whole drawer into and pulling out the cabinet body of the switch cabinet to change the position of the drawer body, the drawer unit is easy to fall off,

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a dropproof mechanism to the defect that above-mentioned current low-voltage switchgear drawer unit exists, through the dropproof mechanism who improves the drawer unit, further improved low-voltage switchgear's safety performance.

Technical scheme

In order to realize the technical purpose, the utility model provides a dropproof mechanism, its characterized in that: the anti-falling mechanism comprises a rod body, wherein one end of the rod body is rotatably arranged on the side face of the drawer shell, the other end of the rod body is provided with a limiting slotted hole, a limiting column is arranged at the corresponding position of the limiting slotted hole on the side face of the drawer shell, the limiting column is positioned in the limiting slotted hole, a stop pin is arranged on the rod body and is led out from a stop pin through hole on the side face of the drawer shell, a stop block is arranged at the corresponding position of the stop pin on the switch cabinet body, a drawer unit is led out of the switch cabinet body, the stop block can be contacted and supported by the stop pin to enable the drawer unit to be prevented from being pulled out, the rod body rotates in the process, the stop pin can be separated from the stop block to enable the drawer unit to be pulled out of the switch cabinet body.

Furthermore, the other end of the rod body is provided with a reset bulge.

Further, when the other end of the rod body is located at the lowest end position under the action of self weight, the stop pin and the stop block are located at the same height, so that the drawer unit is guaranteed to be pulled out from the switch cabinet body, and the stop block can contact and abut against the stop pin to enable the drawer unit to be pulled out.

Furthermore, the length of the limiting groove hole is at least ensured to ensure that the stop pin can leave the stop block in the rotating process of the rod body.

Further, the length of the stop pin through hole is at least ensured to ensure that the stop pin can leave the stop block in the rotating process of the rod body.

Furthermore, one end of the rod body is rotatably arranged on the inner side surface of the drawer shell by utilizing a mounting shaft.

Advantageous effects

The utility model provides a pair of dropproof mechanism, simple structure, dropproof device comply with portable gesture, do not need the independent operation when pulling out the drawer, the operation is run through, and the security is higher, simple structure, and the cost is lower.

Drawings

Fig. 1 is a schematic structural diagram of a fall-prevention mechanism in the embodiment of the present invention.

Fig. 2 is a schematic diagram of the stop pin being stopped by the stopper according to the embodiment of the present invention.

Fig. 3 is a schematic view illustrating the stopper pin being separated from the stopper to release the stopper according to the embodiment of the present invention.

Fig. 4 is a schematic view of a rod structure in an embodiment of the present invention.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "inner", "outer", "front", "rear", "left", "right", "common side", "standby side", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.

Examples

Referring to fig. 1, the fall protection mechanism 11 includes a rod 1101, one end of the rod 1101 is rotatably mounted on the side of the drawer housing 1, and in this embodiment, as shown in fig. 2 and 3, one end of the rod 1101 is rotatably mounted on the inner side of the drawer housing 1 by a mounting shaft 1103. As shown in fig. 4, the other end of the rod 1101 is provided with a limiting slot 1101a, as shown in fig. 1, a position limiting column 1a is arranged on the side surface of the drawer shell 1 corresponding to the position limiting slotted hole 1101a, the limiting column 1a is positioned in the limiting slot 1101a, a stop pin 1101b is arranged on the rod body 1101, the stop pin 1101b penetrates out of the stop pin through hole 104 on the side surface of the drawer shell 1, a stop block 1102 is arranged on the switch cabinet body corresponding to the stop pin 1101b, when the drawer unit is pulled out from the switch cabinet body, the stopper 1102 can be contacted against the stop pin 1101b to prevent the drawer unit from being pulled out for falling, during the rotation of the lever 1101, the stop pin 1101b can be separated from the stop block 1102 to release the stop of the stop block 1102 against the stop pin 1101b, so that the drawer unit can be pulled out from the switch cabinet. The other end of the rod body 1101 is provided with a reset bulge 1101 c. When the other end of the rod body 1101 is located at the lowest end position under the action of self weight, the stop pin 1101b and the stop block 1102 are located at the same height, so that the drawer unit is guaranteed to be pulled out from the switch cabinet body, and the stop block 1102 can contact and abut against the stop pin 1101b to enable the drawer unit to be pulled out. The length of the limiting slot 1101a is the minimum length to ensure that the stop pin 1101b can leave the stopper 1102 during the rotation of the rod body, and the length of the stop pin through hole 104 is the minimum length to ensure that the stop pin 1101b can leave the stopper 1102 during the rotation of the rod body 1101.

The working principle of the embodiment is as follows: in the process of pulling out the switch cabinet body from the drawer unit, the stopper 1102 can contact and abut against the stop pin 1101b, so that the drawer unit cannot be pulled out and fall off at will as shown in fig. 2, the stopper 1102 can be separated from the stopper 1102 only by rotating the rod 1101 and the stop pin 1101b, so that the stopper 1101b is not abutted by the stopper 1102, as shown in fig. 3, the drawer unit can be pulled out from the switch cabinet body.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that; the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A fall prevention mechanism is characterized in that: the anti-falling mechanism (11) comprises a rod body (1101), one end of the rod body (1101) is rotatably arranged on the side face of a drawer shell (1), a limiting slotted hole (1101a) is formed in the other end of the rod body (1101), a limiting column (1a) is arranged on the side face of the drawer shell (1) corresponding to the limiting slotted hole (1101a), the limiting column (1a) is located in the limiting slotted hole (1101a), a stop pin (1101b) is arranged on the rod body (1101), the stop pin (1101b) penetrates out from a stop pin through hole (104) in the side face of the drawer shell (1), a stop block (1102) is arranged on the switch cabinet body corresponding to the stop pin (1101b), the drawer unit is pulled out from the switch cabinet body in the process of pulling out, the stop block (1102) can contact and abut against the stop pin (1101b) to enable the drawer unit to be prevented from being pulled out and falling, and the rod body (1101) rotates in the process, the stop pin (1101b) can be separated from the stop block (1102) to release the stop pin (1101b) from being resisted by the stop block (1102), so that the drawer unit can be pulled out of the switch cabinet.

2. A fall arrest mechanism according to claim 1, characterised in that: the other end of the rod body (1101) is provided with a resetting bulge (1101 c).

3. A fall arrest mechanism according to claim 1, wherein: when the other end of the rod body (1101) is located at the lowest end position under the action of self weight, the positions of the stop pin (1101b) and the stop block (1102) are the same height, so that the drawer unit is guaranteed to be pulled out from the switch cabinet body, and the stop block (1102) can contact and abut against the stop pin (1101b) to enable the drawer unit to be pulled out.

4. A fall arrest mechanism according to claim 1, wherein: the length of the limiting slotted hole (1101a) is at least ensured to ensure that the stop pin (1101b) can leave the stop block (1102) during the rotation process of the rod body (1101).

5. A fall arrest mechanism according to claim 1, wherein: the length of the stop pin through hole (104) is minimum to ensure that the stop pin (1101b) can leave the stop block (1102) during the rotation process of the rod body (1101).

6. A fall arrest mechanism according to claim 2, wherein: one end of the rod body (1101) is rotatably arranged on the inner side surface of the drawer shell (1) by utilizing a mounting shaft (1103).