Emergency stop interlocking mechanism device for mining explosion suppression

Abstract

The utility model relates to an emergency stop interlocking mechanism device for mining explosion suppression, and belongs to the field of emergency stop interlocking mechanisms. The technical problem of potential safety hazards caused when the main circuit breaker of the emergency stop switch cannot be automatically powered off under the condition that the disconnecting switch is powered off is solved. According to the technical scheme, the device comprises an explosion-proof shell, a stop button seat and a stop button assembly are arranged on the explosion-proof shell in a penetrating mode, one end of the stop button seat is provided with an isolation switch handle, the other end of the stop button seat is fixedly connected with a rotating plate, the rotating plate is further provided with an interlocking fork, the interlocking fork is clamped on an interlocking block, and the interlocking block is provided with the stop button assembly. The stop button assembly penetrates through the explosion-proof shell through a shaft seat, the shaft seat is fixed on the explosion-proof shell, the interlocking block is provided with a fixing device and a third groove, the fork tooth can slide along the fixing device, the fork tooth is matched with the third groove, and the fork tooth comprises a first groove, a second groove and a protrusion; the mining flame-proof and intrinsically safe permanent magnet feeder switch is applied to mining flame-proof and intrinsically safe permanent magnet feeder switches.

Description

Technical Field

[0001] The utility model provides an emergency stop interlocking mechanism device for mine explosion isolation, belonging to the field of emergency stop interlocking mechanisms. Background Art

[0002] With the completion of coal resource mergers and reorganizations, coal mines have become more group-based and large-scale, and the coal output of a single wellhead is increasing. The requirements for equipment are more integrated and humanized, and higher requirements are placed on the maintenance, replacement and safety performance of equipment. In particular, when there is explosive gas containing a mixture of methane and coal dust in the coal mine and the surrounding environment, the reliable operation of the explosion-proof enclosure switch is more important. Before the door of the traditional explosion-proof enclosure is opened, the main circuit breaker (main contactor) of the emergency stop switch is disconnected by the movement to disconnect the isolating switch. Under normal circumstances, the door of the explosion-proof enclosure can be safely opened when the main circuit breaker (main contactor) of the emergency stop switch is powered off. However, sometimes due to the failure of certain components, the main circuit breaker cannot be powered off automatically when the isolating switch is disconnected. At this time, it will bring electric shock danger to the maintenance staff and pose a safety hazard. Utility Model Content

[0003] In order to solve the technical problem of potential safety hazards caused by the inability of the main circuit breaker of the emergency stop switch to automatically cut off the power when the isolating switch is powered off, the utility model proposes an emergency stop interlocking mechanism device for mine explosion-proof, and aims to improve the hardware structure and / or circuit structure of the interlocking mechanism of the explosion-proof housing so that the door of the explosion-proof housing can be safely opened at any time, avoiding operators from working with power on, and ensuring the safety and operability of construction.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: an emergency stop interlocking mechanism device for mine explosion-proof, comprising an explosion-proof shell, wherein a stop button seat and a stop button assembly are provided through the explosion-proof shell;

[0005] An isolating switch handle is arranged at one end of the stop button seat, a rotating plate is fixedly connected to the other end of the stop button seat, and an interlocking fork is also arranged on the rotating plate;

[0006] The interlocking fork comprises fork teeth, the fork teeth are clamped on the interlocking block, the interlocking block is provided with a stop button assembly, the stop button assembly penetrates the explosion-proof housing through an axle seat, the axle seat is clearance-matched with the stop button assembly, and the axle seat is fixed on the explosion-proof housing;

[0007] The interlocking block is provided with a fixing device and a third groove, the fork tine can slide along the fixing device, and the fork tine cooperates with the third groove;

[0008] The fork tine comprises a plurality of teeth, each of which is a square structure, and each of which is provided with a protrusion, and the protrusion cooperates with a fixing device.

[0009] Furthermore, the interlocking block is a hollow structure.

[0010] Furthermore, the stop button assembly includes a screw rod, and the screw rod is clearance-matched with the hollow structure of the interlocking block.

[0011] Furthermore, the interlocking block is fixed on the screw rod through a nut.

[0012] Furthermore, a support block is also provided on the explosion-proof housing, and the support block is used to assist the sliding of the interlocking fork.

[0013] Furthermore, the rotating plate is connected to the interlocking fork via a pin.

[0014] Furthermore, the length of the screw is adjustable.

[0015] Furthermore, one end of the stop button assembly away from the screw rod is on the same side as the isolating switch handle.

[0016] Furthermore, the upper surface of the fork tine is lower than the upper surface of the fixing device.

[0017] The beneficial effects of the present invention compared with the prior art are as follows:

[0018] 1. The utility model has a simple structure and is easy to operate;

[0019] 2. The interlocking fork structure of the utility model is matched with the fixing device on the interlocking block to control the screw on the stop button assembly to trigger the emergency stop switch, which can ensure that when the isolating switch is powered off, the main circuit breaker of the emergency stop switch is reliably powered off, eliminating the safety hazard of operators working with power on. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described below in conjunction with the accompanying drawings:

[0021] Figure 1 It is a structural schematic diagram of the utility model in an initial state;

[0022] Figure 2 This is a schematic diagram of the structure of the emergency stop switch of the utility model when it is pressed down;

[0023] Figure 3 This is a schematic diagram of the structure of the emergency stop switch of the utility model after being triggered;

[0024] In the figure: 1 is the isolating switch handle, 2 is the rotating plate, 3 is the interlocking fork, 4 is the interlocking block, 5 is the screw, 6 is the stop button assembly, 7 is the stop button seat, 8 is the shaft seat, 9 is the fixing device, 10 is the explosion-proof housing, 11 is the third groove, 12 is the supporting block, 13 is the fork tooth, 14 is the first groove, 15 is the protrusion, 16 is the second groove, 17 is the pin, and 18 is the nut. DETAILED DESCRIPTION

[0025] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directional words are not used to limit the present invention.

[0026] like Figures 1 to 3 As shown, the utility model provides an emergency stop interlocking mechanism device for explosion-proof mines, including an explosion-proof shell 10, a stop button seat 7 and a stop button assembly 6 are provided on the explosion-proof shell 10, an isolating switch handle 1 is provided at one end of the stop button seat 7, and the isolating switch handle 1 is located outside the explosion-proof shell 10, and a rotating plate 2 is fixedly connected to the other end of the stop button seat 7, and the rotating plate 2 away from one end of the stop button seat 7 is movably connected to one end of the interlocking fork 3 through a pin 17, and the other end of the interlocking fork 3 is a fork tine 13, and the fork tine 13 is stuck on both sides of the interlocking block 4. In this embodiment, the fork tine 13 includes four square-structured teeth, and two teeth are arranged on each side of the interlocking block 4, and the teeth on both sides of the interlocking block 4 are parallel to each other. A fixing device 9 and a third groove 11 are provided on the interlocking block 4, and the fixing device 9 is placed between the two teeth of the fork tine 13. The fixing device 9 of this embodiment is a bolt, and the upper surface of the bolt is higher than the upper surface of the fork tine 13. The teeth on the fork tine 13 include a first groove 14, a second groove 16 and a protrusion 15, and the protrusion 15 extends in the direction of the fixing device 9. The first groove 14, the second groove 16 and the protrusion 15 cooperate with the fixing device 9, so that when the disconnector handle 1 controls the interlocking fork 3 to slide, the teeth on the fork tine 13 can slide along the fixing device 9. The third groove 11 cooperates with the first groove 14, the second groove 16 and the protrusion 15 of the teeth on the fork tine 13, so that when the interlocking fork 3 slides, the interlocking block 4 and the bolt thereon can smoothly pass through the gap between the teeth on the fork tine 13.

[0027] The interlocking block 4 is fixed on the stop button assembly 6. One end of the stop button assembly 6 passes through the explosion-proof shell 10 through the shaft seat 8 and then extends out of the outside of the explosion-proof shell 10. The other end of the stop button assembly 6 is a screw 5. The shaft seat 8 is fixed on the explosion-proof shell 10, and the shaft seat 8 and the stop button assembly 6 are clearance-matched; the length of the screw 5 can be adjusted according to specific circumstances. In this embodiment, the interlocking block 4 is a hollow structure, and the hollow structure of the interlocking block 4 is clearance-matched with the screw 5. The screw 5 and the interlocking block 4 are fixedly connected by the nut 18, so that the stop button assembly 6 and the interlocking block 4 become a whole. The interlocking block 4 can also be fixed to the stop button assembly 6 by other means, as long as the interlocking block 4 and the stop button assembly 6 are fixed as a whole, when the fork teeth 13 of the interlocking fork 3 slide along the bolt on the interlocking block 4, the screw 5 on the stop button assembly 6 can move forward and backward.

[0028] Due to the gap between the interlocking fork 3 and the explosion-proof shell 10, the fork teeth 13 of the interlocking fork 3 are not hard enough, and may break during the sliding process of the interlocking fork 3 or fail to enable the stop button assembly 6 to trigger the emergency stop switch. Therefore, a support block 12 is also provided between the interlocking fork 3 and the inner side of the explosion-proof shell 10 to assist the sliding of the interlocking fork 3.

[0029] The number of teeth on the fork 13 can be adaptively adjusted according to specific circumstances, as long as it is ensured that when the isolating switch handle 1 controls the movement of the interlocking fork 3, the teeth on the fork 13 do not fall off when sliding along the fixing device 9, thereby driving the interlocking block 4 to move, so that the screw 5 on the stop button assembly 6 can trigger the emergency stop switch.

[0030] The working principle of this utility model:

[0031] When the movement is in the inserted state, the main circuit breaker of the emergency stop switch does not disconnect the circuit, and the entire system is in a live state. At this time, the isolating switch handle 1 is in Figure 1 In the state shown, the fixing device 9 is in the position of the first groove 14; when the door of the explosion-proof housing 10 needs to be opened, the isolating switch handle 1 is rotated 90 degrees clockwise (the technicians in this field can adjust the rotation angle according to the setting of the fork teeth 13). At this time, the isolating switch handle 1 is in Figure 2 In the state shown, during the rotation of the isolating switch handle 1, the teeth of the fork 13 will slide along the fixing device 9, and the fixing device 9 will relatively move from the position of the first groove 14 of the teeth on the fork 13 to the position of the protrusion 15 of the teeth on the fork 13, and the screw 5 on the stop button assembly 6 will move away from the explosion-proof housing 10, so that the screw 5 gradually approaches the emergency stop switch, thereby triggering the emergency stop switch; continue to rotate the isolating switch handle 1, the fork 13 of the interlocking fork 3 will continue to slide along the fixing device 9, and the fixing device 9 will relatively move from the position of the protrusion 15 on the fork 13 to the position of the second groove 16 of the teeth on the fork 13, as shown in FIG. Figure 3As shown, in this process, the screw rod 5 on the stop button assembly 6 moves toward the explosion-proof housing 10, thereby moving the screw rod 5 away from the emergency stop switch, and the movement is powered off. The utility model can ensure that the system inside the explosion-proof housing 10 is in a powered-off state before the operator opens the door, so as to ensure safe operation.

[0032] Regarding the specific structure of the utility model, it should be explained that the connection relationship between the various component modules adopted in the utility model is definite and feasible. Except for special instructions in the embodiments, the specific connection relationship can bring corresponding technical effects and solve the technical problems raised by the utility model without relying on the execution of corresponding software programs. The components, modules, models of specific components and the connection methods between each other appearing in the utility model, as well as the conventional use methods and expected technical effects brought about by the above-mentioned technical features, except for specific instructions, all belong to the disclosed contents in patents, journal articles, technical manuals, technical dictionaries, and textbooks that can be obtained by technical personnel in this field before the application date, or belong to the existing technologies such as conventional technologies and common knowledge in this field, and there is no need to elaborate, so that the technical solution provided in this case is clear, complete and feasible, and the corresponding physical products can be reproduced or obtained according to the technical means.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. An emergency stop interlocking mechanism device for mine explosion isolation, characterized in that: It comprises an explosion-proof housing (10), wherein a stop button seat (7) and a stop button assembly (6) are provided through the explosion-proof housing (10); An isolating switch handle (1) is disposed at one end of the stop button seat (7), and a rotating plate (2) is fixedly connected to the other end of the stop button seat (7), and an interlocking fork (3) is also disposed on the rotating plate (2); The interlocking fork (3) comprises a fork tooth (13), the fork tooth (13) being clamped on the interlocking block (4), the interlocking block (4) being provided with a stop button assembly (6), the stop button assembly (6) penetrating the explosion-proof housing (10) via a shaft seat (8), the shaft seat (8) and the stop button assembly (6) being clearance-matched, and the shaft seat (8) being fixed on the explosion-proof housing (10); The interlocking block (4) is provided with a fixing device (9) and a third groove (11), the fork tine (13) can slide along the fixing device (9), and the fork tine (13) cooperates with the third groove (11); The fork tine (13) comprises a plurality of teeth, each of which is a square structure, and each of which is provided with a protrusion (15), wherein the protrusion (15) cooperates with the fixing device (9).

2. The emergency stop interlocking mechanism device for mine explosion-proofing according to claim 1 is characterized in that: The interlocking block (4) is a hollow structure.

3. The emergency stop interlocking mechanism device for mine explosion-proofing according to claim 1 is characterized in that: The stop button assembly (6) comprises a screw rod (5), and the screw rod (5) is clearance-matched with the hollow structure of the interlocking block (4).

4. The emergency stop interlocking mechanism device for mine explosion-proofing according to claim 3 is characterized in that: The interlocking block (4) is fixed to the screw rod (5) via a nut (18).

5. The emergency stop interlocking mechanism device for mine explosion-proofing according to claim 1 is characterized in that: A support block (12) is also provided on the explosion-proof housing (10), and the support block (12) is used to assist the interlocking fork (3) in sliding.

6. The emergency stop interlocking mechanism device for mine explosion-proofing according to claim 1 is characterized in that: The rotating plate (2) and the interlocking fork (3) are connected via a pin (17).

7. The emergency stop interlocking mechanism device for mine explosion-proofing according to claim 3 is characterized in that: The length of the screw rod (5) is adjustable.

8. The emergency stop interlocking mechanism device for mine explosion-proofing according to claim 3 is characterized in that: The end of the stop button assembly (6) away from the screw rod (5) is located on the same side as the isolating switch handle (1).

9. The emergency stop interlocking mechanism device for mine explosion-proofing according to claim 1, characterized in that: The upper surface of the fork tine (13) is lower than the upper surface of the fixing device (9).

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