Mechanical locking structure for operating isolating switch on side surface of mining flame-proof shell
By designing a mechanical interlocking structure for the side-operated isolating switch of the explosion-proof housing used in mining, the problem of the lack of mechanical interlocking for underground isolating switches has been solved, and a simple interlocking between the operating lever and the front door has been achieved, ensuring the safe operation of equipment and the safety of personnel.
Patent Information
- Application Number
- CN202423159611.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-20
AI Technical Summary
The lack of mechanical interlocking devices or the cumbersome structure of the side-operated isolating switches in the well makes it inconvenient to open the door, difficult to restore the interlock, and poses safety hazards.
Design a mechanical interlocking structure for a mine explosion-proof housing side-operated isolating switch, including an interlocking linkage, a turntable baffle, an interlocking plate, and a support base. By rotating the operating lever unit, the turntable baffle is driven to limit the interlocking linkage, thereby realizing the interlocking closure of the operating lever and the front door.
It enables a simple interlock between the control lever and the front door, ensuring safe operation of the equipment, preventing the door from being opened while energized, and improving the safety and reliability of operation.
Smart Images
Figure CN223665363U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of isolating switch, especially relates to a mine explosion -proof type casing side operation isolating switch's mechanical locking structure. BACKGROUND
[0002] At present, the door opening mechanism of the various explosion -proof type equipment needing side operation isolating switch in the mine generally lacks mechanical locking device or the structure of locking device is too complicated. Make the door opening operation inconvenient, and the locking device is difficult to restore when closing the door or during the restoring process, small parts such as top wire and hook are lost, installation error etc., leading to the mechanical locking failure, and causing the security risk. SUMMARY
[0003] The utility model discloses a mine explosion -proof type casing side operation isolating switch's mechanical locking structure, meets the locking closing of the operating lever of isolating switch and front door under the explosion -proof working condition.
[0004] To achieve the above object, the utility model discloses the following technical scheme:
[0005] A mine explosion -proof type casing side operation isolating switch's mechanical locking structure, including locking link, turntable baffle, interlocking plate, support seat, the support seat is fixed on the side door or side plate with isolating switch cavity, and the locking link is connected with the support seat;The turntable baffle is fixedly connected with the operating lever unit of isolating switch, and the turntable baffle can rotate with the operating lever unit of isolating switch;Locking hole corresponding with the locking link is formed in the interlocking plate;In the locking state, the one end of locking link is in abutment on the turntable baffle, and the other end passes through the locking hole and extends to the outside of interlocking plate.
[0006] The locking link is connected with the support seat by screw thread, and the locking link is moved back and forth in the support seat by rotating.
[0007] The locking link is provided with a pin hole.
[0008] The locking link is connected with the support seat by sliding, and the support seat is provided with a slide groove with closed two ends, and the locking link is fixedly connected with a bolt, and the bolt can extend to the outside of the slide groove.
[0009] The interlocking plate is installed on the front door with isolating switch cavity or quick -opening door shaft.
[0010] The turntable baffle is fixedly connected with the operating lever unit of isolating switch by bolt.
[0011] The end of the locking link is provided with a padlock hole.
[0012] The turntable baffle is provided with a limit plate.
[0013] The locking link is provided with a pin hole.
[0014] Compared with the prior art, the utility model has the beneficial effects that:
[0015] 1、The mechanical locking structure of the mine explosion-proof type housing side operation isolating switch is simple, easy to install and maintain, safe and reliable, meets the anti-explosion working condition, realizes the interlocking closing of the operating rod of the isolating switch and the front door, and ensures personnel safety.
[0016] 2、The utility model discloses a rotating isolating switch external operating rod unit drives the rotating disc baffle to limit the locking connecting rod, realizes locking, avoids the illegal operation of the equipment live door opening, and ensures personnel safety.
[0017] 3、The utility model discloses before the door opening, must rotate the operating rod unit of the housing side isolating switch, makes the isolating switch be in the open state, at this moment, the rotating disc baffle can be lifted with the rotation of the operating rod unit, and the locking connecting rod can remove the locking hole of the interlocking plate, and the cabinet door can be opened at this moment. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is the structure schematic diagram of the utility model.
[0019] Figure 2 It is the I part of the enlarged view of Figure 1
[0020] Figure 3 It is the explosion drawing of the utility model.
[0021] Figure 4 It is the front view of the locking connecting rod.
[0022] Figure 5 It is the structure schematic diagram of the locking connecting rod.
[0023] Figure 6 It is the connection schematic diagram of the locking connecting rod and the support seat.
[0024] In the drawing: 1-locking connecting rod 2-rotating disc baffle 3-operating rod unit 4-interlocking plate 5-support seat 6-front door
[0025] 11-hanging lock hole 12-pin hole 13-latch 51-slotted guide. DETAILED DESCRIPTION
[0026] The utility model will be described in detail below in combination with the drawings of the specification, but it should be pointed out that the implementation of the utility model is not limited to the following embodiments.
[0027] Embodiment 1
[0028] See Figures 1-5 A mechanical locking structure of a side-operated isolating switch of a mine explosion-proof type housing, comprising a locking connecting rod 1, a rotating disc stopper 2, an interlocking plate 4, and a support seat 5. The support seat 5 is fixed on a side door or a side plate provided with a cavity of the isolating switch, and a threaded hole matched with the locking connecting rod 1 is formed on the support seat 5. The locking connecting rod 1 is connected with the support seat 5 through the threaded hole. The rotating disc stopper 2 is connected with an operating lever unit 3 of the isolating switch through a bolt, and the rotating disc stopper 2 can rotate with the operating lever unit 3.
[0029] The interlocking plate 4 is installed on a front door 6 or a quick-opening door shaft, and a locking hole corresponding to the locking connecting rod 1 is formed on the interlocking plate 4. In a locked state, one end of the locking connecting rod 1 abuts against the rotating disc stopper 2, and the other end of the locking connecting rod 1 extends out of the interlocking plate 4 through the locking hole. When the front door 6 is opened, a handle on the door needs to be counterclockwise rotated, and the interlocking plate 4 is counterclockwise rotated. In the locked state, the locking connecting rod 1 is inserted into the locking hole, and the interlocking plate cannot be rotated, so that the front door 6 cannot be opened. In addition, a pin hole 12 can be formed on the locking connecting rod 1, and a pin shaft is installed on the pin hole 12 to limit the stroke of the locking connecting rod.
[0030] The support seat 5 and the locking connecting rod 1 are connected through the threaded hole, which can prevent the locking connecting rod 1 from falling off. When the front door 6 of the housing is opened, the operating lever unit 3 must be rotated, so that the isolating switch is in an open state. The rotating disc stopper 2 is lifted up with the rotation of a handle of the operating lever unit 3. At this time, the locking connecting rod 1 is clockwise rotated to make it exit the locking hole of the interlocking plate 4, and the front door 6 can be opened. When the front door 6 is closed, the locking connecting rod 1 is counterclockwise rotated to make it inserted into the locking hole, so that the interlocking plate cannot be moved with the front door 6, and the front door 6 cannot be opened. The rotating disc stopper 2 is lowered with the rotation of the handle of the operating lever unit 3. At this time, the isolating switch is in a closed state, and the locking connecting rod 1 abuts against the rotating disc stopper 2.
[0031] Example 2
[0032] See Figures 1-3 The difference from example 1 is that the rotating disc stopper 2 is a detachable structure, and the rotating disc stopper 2 is fixedly connected with the operating lever unit 3 of the isolating switch through a bolt. The structure is convenient for the modification of the existing isolating switch, and the rotating disc stopper 2 is convenient for disassembly, maintenance and repair. In addition, a limiting plate is connected on the rotating disc stopper 2. The limiting plate is formed by bending the rotating disc stopper 2, and one end of the locking connecting rod 1 abuts against the limiting plate to increase the contact area. When the isolating switch needs to be opened, an operator rotates a handle of the operating lever unit 3, the rotating disc stopper 2 is rotated, the limiting plate is away from the position of the locking connecting rod 1, and then the locking connecting rod 1 is rotated to move backward and exit the locking hole, so that the front door 6 can be opened.
[0033] Example 3
[0034] See Figures 1-5On the basis of the embodiment 1 or the embodiment 2, the end of the locking link 1 is provided with a padlock hole 11, and after the locking link 1 passes through the locking hole of the interlocking plate 4, a padlock can be added on the padlock hole 11 to realize special opening.
[0035] Embodiment 4
[0036] The difference from the embodiment 1 is that, Figure 6 The support base 5 and the locking link 1 can be connected in a sliding mode, a through hole is formed in the support base 5, a sliding groove 51 is formed on the support base 5 and communicated with the through hole, the sliding groove 51 is closed at both ends and used for limiting the sliding stroke of the locking link 1 and preventing the locking link 1 from falling off. The locking link 1 is fixedly connected with a bolt 13, the bolt 13 can be extended out of the support base from the sliding groove 51, and the bolt 13 can be moved forward and backward to realize quick sliding locking and opening.
[0037] The utility model discloses compact structure, and the space is small, and it is convenient to reform on the existing isolating switch. Can guarantee the safe operation of the power on process. Meet the anti -explosion working condition, realize the interlocking closing of the operating lever of isolating switch and front door 6, ensure personnel safety. The device structure is simple, and easy to install and maintain, safe and reliable.
[0038] Through the above specific embodiment, the person skilled in the art can easily realize the utility model. However, it should be understood that the utility model is not limited to the above specific embodiment. On the basis of the disclosed embodiment, the person skilled in the art can arbitrarily combine different technical features to realize different technical solutions. Limited by the length and for the sake of simplicity of the specification, each scheme formed by the combination is not described one by one. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A mechanical interlocking structure for a mine-use explosion-proof housing side-operated isolating switch, characterized in that, It includes a locking link, a turntable baffle, an interlocking plate, and a support base. The support base is fixed to the side door or side plate containing the disconnecting switch cavity, and the locking link is connected to the support base. The turntable baffle is fixedly connected to the operating lever unit of the disconnecting switch, and the turntable baffle can rotate with the operating lever unit of the disconnecting switch. The interlocking plate has a locking hole corresponding to the locking link. In the locked state, one end of the locking linkage rests against the turntable baffle, and the other end extends through the locking hole to the outside of the interlocking plate.
2. The mechanical interlocking structure of a mine explosion-proof housing side-operated isolating switch according to claim 1, characterized in that, The locking link is threaded to the support base, and can be rotated to move back and forth within the support base.
3. The mechanical interlocking structure for a mine-use explosion-proof housing side-operated isolating switch according to claim 2, characterized in that, The locking link is provided with a pin hole.
4. The mechanical interlocking structure of a mine explosion-proof housing side-operated isolating switch according to claim 1, characterized in that, The locking link is slidably connected to the support base, which has a groove closed at both ends. A pin is fixedly connected to the locking link, and the pin can extend out of the groove.
5. The mechanical interlocking structure of a mine explosion-proof housing side-operated isolating switch according to claim 1, characterized in that, The interlocking plate is installed on the front door containing the isolating switch cavity or on the hinge of the quick-opening door.
6. The mechanical interlocking structure of a mine explosion-proof housing side-operated isolating switch according to claim 1, characterized in that, The rotary baffle and the operating lever unit of the disconnect switch are fixedly connected by bolts.
7. The mechanical interlocking structure of a mine explosion-proof housing side-operated isolating switch according to claim 1, characterized in that, The locking link has a padlock hole at its end.
8. The mechanical interlocking structure of a mine explosion-proof housing side-operated isolating switch according to claim 1, characterized in that, The turntable baffle is equipped with a limiting plate.
9. The mechanical interlocking structure of a mine explosion-proof housing side-operated isolating switch according to claim 1, characterized in that, The locking link is provided with a pin hole.