CN209913357U - Handcart-type cubical switchboard with auto-lock structure - Google Patents
Handcart-type cubical switchboard with auto-lock structure Download PDFInfo
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- CN209913357U CN209913357U CN201921091156.XU CN201921091156U CN209913357U CN 209913357 U CN209913357 U CN 209913357U CN 201921091156 U CN201921091156 U CN 201921091156U CN 209913357 U CN209913357 U CN 209913357U
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- handcart
- ratchet
- switch cabinet
- wheel
- limiting groove
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Abstract
The utility model discloses a handcart type switch cabinet with a self-locking structure, which comprises a switch cabinet body and a handcart arranged in the switch cabinet body; the bottom of the handcart is rotatably provided with a movable wheel; a guide groove is formed in the switch cabinet body and is positioned below the moving wheels; the guide groove extends along the in-out direction of the handcart; the moving wheel is arranged in the guide groove in a rolling manner; a ratchet wheel is coaxially arranged on the central shaft of the moving wheel; a limiting groove is arranged below the ratchet wheel on the switch cabinet body; the limiting groove extends along the in-out direction of the handcart; the lower part of the ratchet wheel is movably arranged in the limit groove; a ratchet bar is arranged below the ratchet wheel in the limiting groove; the ratchet bar extends along the length direction of the limiting groove; the ratchet bar is meshed with the ratchet wheel; supporting springs are distributed between the bottom surface of the ratchet bar and the bottom of the limiting groove. The utility model discloses can carry out the auto-lock to the handcart, avoid the handcart the condition that backs down to effectively prevent that moving contact and static contact are not hard up to take off, ensure cubical switchboard operation safe and reliable.
Description
Technical Field
The utility model relates to a cubical switchboard technical field especially relates to a handcart-type cubical switchboard with auto-lock structure.
Background
The current handcart type switch cabinet generally comprises a fixed switch cabinet and a handcart moving in the switch cabinet. The handcart can get in and out of a handcart room in the switch cabinet to facilitate maintenance and testing of workers. When the handcart is pushed into a handcart room, the moving contact of the handcart can be inserted into the static contact seat in the switch cabinet and accurately butted with the static contact so as to work. When the existing handcart is pushed into a handcart room, the handcart cannot be effectively locked at a working position, and after the handcart works for a long time, the handcart is easy to fall back, so that a moving contact arranged on the handcart is separated from a static contact in a switch cabinet, and the switch cabinet is easy to break down and has potential safety hazards.
SUMMERY OF THE UTILITY MODEL
To the technical problem who exists above-mentioned, the utility model aims at: the handcart type switch cabinet with the self-locking structure can self-lock a handcart when the handcart is pushed into a switch cabinet body, and the handcart is prevented from falling backwards, so that moving contacts and static contacts are effectively prevented from loosening and separating, and the switch cabinet is ensured to be safe and reliable in operation.
The technical solution of the utility model is realized like this: a handcart type switch cabinet with a self-locking structure comprises a switch cabinet body and a handcart arranged in the switch cabinet body; the bottom of the handcart is rotatably provided with a movable wheel; a guide groove is formed in the switch cabinet body and is positioned below the moving wheels; the guide groove extends along the in-out direction of the handcart; the moving wheel is arranged in the guide groove in a rolling manner; a ratchet wheel is coaxially arranged on the central shaft of the moving wheel; a limiting groove is formed in the switch cabinet body and is positioned below the ratchet wheel; the limiting groove extends along the in-out direction of the handcart; the lower part of the ratchet wheel is movably arranged in the limiting groove; a ratchet bar is arranged below the ratchet wheel in the limiting groove; the ratchet strip extends along the length direction of the limiting groove; the ratchet bar is meshed with the ratchet wheel; supporting springs are distributed between the bottom surface of the ratchet strip and the bottom of the limiting groove.
Furthermore, the moving wheels are distributed on two sides of the bottom of the handcart, and each side is provided with at least two moving wheels; a ratchet wheel is arranged corresponding to each moving wheel.
Furthermore, the ratchet of the ratchet bar is arranged towards the direction that the handcart moves out of the switch cabinet.
Furthermore, a drawing component is arranged in the limit groove; the pulling assembly comprises a reel and a pulling rope; the reel is arranged below the ratchet bar and is rotationally connected with the side wall of the limiting groove; one end of the traction rope is arranged on the bottom surface of the ratchet bar, one end, far away from the ratchet bar, of the traction rope extends downwards and penetrates out of the limiting groove along the horizontal direction after the direction of the traction rope is changed through the reel.
Furthermore, the winding wheels are arranged at intervals along the length direction of the limiting groove, and a traction rope is arranged corresponding to each winding wheel; the end that the haulage rope wore out the spacing groove all is connected with the pull ring that sets up in the spacing groove outside.
Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage: the utility model discloses a cooperation of ratchet and ratchet is used, when pushing away the handcart to this internal, can carry out one-way automatic locking to the removal wheel of handcart, prevents to remove the wheel and appears backing up to carry out effectual auto-lock to the handcart, effectively prevent that moving contact on the handcart and this internal static contact of cubical switchboard are not hard up under operating condition and take off, ensure cubical switchboard operation safe and reliable. In addition, through the cooperation use of haulage rope and reel, operating personnel only need the tractive haulage rope, just can remove the locking to the handcart, and easy operation is convenient, the fine application demand who satisfies handcart-type cubical switchboard.
Drawings
The technical scheme of the utility model is further explained by combining the attached drawings as follows:
fig. 1 is a schematic front view structure diagram of the switch cabinet body of the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
fig. 3 is a schematic structural view of a front view of the handcart of the utility model;
FIG. 4 is an enlarged view of FIG. 3 at B;
fig. 5 is a left side view structure schematic diagram of the handcart of the present invention;
FIG. 6 is an enlarged view at C of FIG. 5;
FIG. 7 is an enlarged view of FIG. 6 at D;
FIG. 8 is a schematic view of the ratchet and ratchet bar of the present invention;
wherein: 1. a switch cabinet body; 11. a bus chamber; 12. a cable chamber; 2. a handcart; 3. a stationary contact base; 31. static contact; 32. a moving contact; 4. a moving wheel; 41. a guide groove; 5. a ratchet wheel; 51. a limiting groove; 6. a ratchet; 61. a support spring; 7. a reel; 71. a hauling rope; 8. and (4) a pull ring.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
As shown in fig. 1-8, the handcart type switch cabinet with self-locking structure of the present invention comprises a switch cabinet body 1 and a handcart 2 movably installed in the switch cabinet body 1. A handcart room is arranged in the switch cabinet body 1, and a handcart 2 is arranged in the handcart room. The bottom of the handcart 2 is rotatably provided with a moving wheel 4. The movable wheel 4 is specifically mounted in a manner that the central shaft of the movable wheel 4 is fixed at the bottom of the handcart 2 through a bearing seat. A guide groove 41 is formed in the switch cabinet body 1 below the moving wheels 4, and the guide groove 41 extends along the entering and exiting direction of the handcart 2 (i.e. the direction of entering and exiting the handcart room). The moving wheel 4 is roll-mounted in the guide groove 41. The guide groove 41 may guide the moving wheel 4 so that it can smoothly roll along the length direction of the guide groove 41. A ratchet wheel 5 is coaxially arranged on the central shaft of the moving wheel 4. The ratchet wheel 5 rotates synchronously with the moving wheel 4. A limiting groove 51 is arranged on the switch cabinet body 1 below the ratchet wheel 5, and the limiting groove 51 extends along the in-out direction of the handcart 2. The lower part of the ratchet wheel 5 is movably arranged in a limiting groove 51, a ratchet bar 6 is arranged in the limiting groove 51 below the ratchet wheel 5, the ratchet bar 6 extends along the length direction of the limiting groove 51, and the ratchet teeth on the ratchet bar 6 are arranged towards the direction that the handcart 2 moves out of the handcart room (or the switch cabinet body 1) (as shown in fig. 8). The ratchet 6 is engaged with the ratchet 5 (i.e. the ratchet teeth on the ratchet 6 are engaged with the ratchet teeth on the ratchet 5). Supporting springs 61 are distributed between the bottom surface of the ratchet 6 and the bottom of the limiting groove 51. The support spring 61 is vertically arranged to provide an upward supporting force to the ratchet 6. Through the structural design, the ratchet 5 is driven to synchronously roll by the rolling of the moving wheel 4, and the ratchet 6 is forced to downwards move by the rotation of the ratchet 5 in the process that the moving wheel 4 moves towards the inside of the handcart room, so that the ratchets on the ratchet 5 and the ratchets on the ratchet 6 are not meshed, and the moving wheel 4 can continuously roll. When the moving wheel 4 stops moving, the ratchet teeth on the ratchet 5 and the ratchet teeth on the ratchet bar 6 are engaged. When the moving wheel 4 moves towards the outside of the handcart room, the ratchet teeth on the ratchet 5 are meshed with the ratchet teeth on the ratchet bar 6, so that the ratchet 5 is limited to rotate, and the moving wheel 4 is limited to rotate.
The moving wheels 4 are distributed on two sides of the bottom of the handcart 2, and at least two moving wheels 4 are installed on each side, in the embodiment, two moving wheels 4 are installed on each side, and corresponding to each moving wheel, a ratchet wheel 5 is installed on each moving wheel 4. The guide groove 41 and the stopper groove 51 are provided according to actual needs.
In order to unlock the ratchet wheel 5 and the ratchet bar 6, a pulling assembly is arranged in the limiting groove 51, the pulling assembly comprises a reel 7 and a pulling rope 71, the reel 7 is arranged below the ratchet bar 6 and is rotatably connected with the side wall of the limiting groove 51 through a bearing, one end of the pulling rope 71 is arranged on the bottom surface of the ratchet bar 6, one end, far away from the ratchet bar 6, of the pulling rope 71 extends downwards, and after the direction of the pulling rope is changed through the reel 7, the pulling rope penetrates out of the limiting groove 51 in the horizontal direction. By pulling the pulling rope 71, the ratchet 6 can be driven to move downwards, and the ratchet 6 and the ratchet wheel 5 can be separated. The reels 7 are arranged at intervals along the length direction of the limiting groove 51, a traction rope 71 is installed corresponding to each reel 7, and one end, penetrating out of the limiting groove 51, of the traction rope 71 is connected with a pull ring 8 installed outside the limiting groove 51. By pulling the pull ring 8, all the pull cords 71 can be moved.
Working principle (1): a bus chamber 11 and a cable chamber 12 are arranged in the switch cabinet body 1, and the static contact seats 3 are respectively arranged in the bus chamber 11 and the cable chamber 12. A static contact 31 is arranged in the static contact seat 3. The bus chamber 11 is provided with a three-phase high-voltage alternating-current bus and is connected with one static contact 31 through a branch bus. The cable chamber 12 is arranged with a cable and connected with another stationary contact 31. The handcart 2 is provided with two moving contacts 32, and when the handcart 2 is pushed into a handcart room, the two moving contacts 32 on the handcart are respectively inserted into the static contact mounting seats 3 at corresponding positions and are contacted with the static contact 31, so that circuit connection is realized. The fixed contact 31 and the movable contact 221 are conventional components in the prior art, and the connection mode is also the prior art.
Working principle (2): when the handcart 2 is pushed into the handcart room, the moving wheel 4 rolls to drive the ratchet wheel 5 to roll synchronously, the ratchet wheel 5 forces the ratchet bar 6 to move downwards, so that the ratchet on the ratchet wheel 5 is not meshed with the ratchet on the ratchet bar 6, the moving wheel 4 can continue to roll, the handcart 2 can move, and the moving contact 32 on the handcart 2 can be accurately butted with the static contact 31. When the correct position is reached, the ratchet 5 engages with the ratchet 6 under the action of the supporting spring 61. When the handcart 2 moves towards the outside of the handcart room under the action of external force, the ratchets on the ratchet wheels 5 are meshed with the ratchets on the ratchet bars 6, so that the ratchet wheels 5 are limited to rotate, the moving wheels 4 are limited to rotate, and the handcart is automatically locked and cannot back up. When it is desired to move the hand truck 2, the operator pulls the pull ring 8 on the outside. The pull ring 8 drives the traction rope 71 to integrally move, so that the ratchet strip 6 can be driven to move downwards, the ratchet strip 6 is separated from the ratchet wheel 5, and unlocking is realized.
This implementation is when promoting handcart 2 in to cubical switchboard body 1, can carry out one-way automatic locking to the removal wheel 4 of handcart 2, prevents to remove wheel 4 and appears backing up to carrying out effectual auto-lock to handcart 2, effectively preventing that moving contact 32 on handcart 2 and this internal static contact 31 of cubical switchboard are not hard up under operating condition and take off, ensure cubical switchboard operation safe and reliable. In addition, the handcart 2 can be unlocked only by pulling the traction rope 71 by an operator, the operation is simple and convenient, and the application requirement of the handcart type switch cabinet is well met.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all utilize the equivalent structure or equivalent flow transformation that the content of the specification does, or directly or indirectly use in other related technical fields, all including in the same way the patent protection scope of the present invention.
Claims (5)
1. A handcart type switch cabinet with a self-locking structure comprises a switch cabinet body and a handcart arranged in the switch cabinet body; the bottom of the handcart is rotatably provided with a movable wheel; a guide groove is formed in the switch cabinet body and is positioned below the moving wheels; the guide groove extends along the in-out direction of the handcart; the moving wheel is arranged in the guide groove in a rolling manner; the method is characterized in that: a ratchet wheel is coaxially arranged on the central shaft of the moving wheel; a limiting groove is formed in the switch cabinet body and is positioned below the ratchet wheel; the limiting groove extends along the in-out direction of the handcart; the lower part of the ratchet wheel is movably arranged in the limiting groove; a ratchet bar is arranged below the ratchet wheel in the limiting groove; the ratchet strip extends along the length direction of the limiting groove; the ratchet bar is meshed with the ratchet wheel; supporting springs are distributed between the bottom surface of the ratchet strip and the bottom of the limiting groove.
2. The handcart type switch cabinet with the self-locking structure according to claim 1, characterized in that: the moving wheels are distributed on two sides of the bottom of the handcart, and each side is provided with at least two moving wheels; a ratchet wheel is arranged corresponding to each moving wheel.
3. The handcart type switch cabinet with the self-locking structure according to claim 1, characterized in that: the ratchet of the ratchet bar is arranged towards the direction that the handcart moves out of the switch cabinet.
4. The handcart type switch cabinet with the self-locking structure according to claim 1, characterized in that: a drawing component is arranged in the limiting groove; the pulling assembly comprises a reel and a pulling rope; the reel is arranged below the ratchet bar and is rotationally connected with the side wall of the limiting groove; one end of the traction rope is arranged on the bottom surface of the ratchet bar, one end, far away from the ratchet bar, of the traction rope extends downwards and penetrates out of the limiting groove along the horizontal direction after the direction of the traction rope is changed through the reel.
5. The handcart type switch cabinet with the self-locking structure according to claim 4, characterized in that: the winding wheels are arranged at intervals along the length direction of the limiting groove, and a traction rope is arranged corresponding to each winding wheel; the end that the haulage rope wore out the spacing groove all is connected with the pull ring that sets up in the spacing groove outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921091156.XU CN209913357U (en) | 2019-07-12 | 2019-07-12 | Handcart-type cubical switchboard with auto-lock structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921091156.XU CN209913357U (en) | 2019-07-12 | 2019-07-12 | Handcart-type cubical switchboard with auto-lock structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209913357U true CN209913357U (en) | 2020-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921091156.XU Active CN209913357U (en) | 2019-07-12 | 2019-07-12 | Handcart-type cubical switchboard with auto-lock structure |
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| CN (1) | CN209913357U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114284925A (en) * | 2022-01-25 | 2022-04-05 | 山东泰开真空开关有限公司 | Handcart is prevented empting from drawing rail formula cubical switchboard |
-
2019
- 2019-07-12 CN CN201921091156.XU patent/CN209913357U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114284925A (en) * | 2022-01-25 | 2022-04-05 | 山东泰开真空开关有限公司 | Handcart is prevented empting from drawing rail formula cubical switchboard |
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