Electric reverse ventilation locking device for mining vertical air shaft explosion door

Abstract

The utility model relates to the field of mine anti-explosion door air locks, and discloses a mine vertical air shaft anti-explosion door electric air reversing locking device which comprises an anti-explosion cover and locking mechanisms, the top side of the anti-explosion cover is fixedly connected to the bottom sides of the multiple locking mechanisms, the bottom sides of the locking mechanisms are fixedly connected with embedded assemblies, and the embedded assemblies are fixedly connected to the top side of the anti-explosion cover. A square pipe is fixedly connected to the top side of the pre-embedded assembly, a rack plate is slidably connected to the inner wall of the square pipe, a pressing wheel is fixedly connected to the top side of the square pipe, a protective cover is fixedly connected to the top side of the pre-embedded assembly, supporting cylinders are fixedly connected to the inner wall of the protective cover, and explosion-proof motors are fixedly connected to the sides, close to each other, of the multiple supporting cylinders. According to the utility model, through the control box of the reverse ventilation locking mechanism, remote control of reverse ventilation locking and unlocking can be realized, so that an operator does not need to go to an explosion door site to operate, and can carry out remote control through the control box in a fan room, thereby reducing the working cost of manpower.

Description

Technical Field

[0001] The utility model relates to the field of mine explosion-proof door wind locks, in particular to an electric anti-wind locking device for mine vertical wind shaft explosion-proof doors. Background Art

[0002] The explosion-proof door of the wind shaft is an important facility for mine ventilation. During normal ventilation, it can isolate the underground airflow from the ground atmosphere, prevent wind short circuit, and ensure the normal ventilation system. Once a gas or coal dust explosion occurs underground, the explosion-proof door is opened by the impact of the explosion airflow, so that the explosion airflow is directly discharged to the ground atmosphere, which plays a role in pressure relief and prevents the main fan from being damaged by the impact of the explosion airflow; when the main fan stops running, the explosion-proof door can be opened to use natural wind pressure for ventilation. If a fire or gas or coal dust explosion occurs near the air inlet, the wellhead, the well bottom parking lot, etc., it is necessary to immediately carry out reverse wind operation, and the direction of the wind flow in the tunnel must be changed within 10 minutes to prevent toxic and harmful gases from entering the working face and endangering the lives of underground personnel. Before the reverse wind operation, the explosion-proof door must be pressed tightly to prevent the explosion-proof door from being blown open due to the positive pressure in the air duct during the reverse wind operation, causing wind short circuit and failing to achieve the purpose of reverse wind.

[0003] In the prior art, most of the anti-wind locking devices for vertical ventilation shaft explosion-proof doors usually adopt steel pipe plugs, that is, several steel pipes are used to hold the explosion-proof door leaves to keep them in a closed state. Only personnel can be arranged to operate on-site, and more than two people are required. The operation is troublesome and time-consuming. Therefore, in view of the above shortcomings, an electric anti-wind locking device for mine vertical ventilation shaft explosion-proof doors is proposed. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose an electric anti-wind locking device for explosion-proof doors of vertical ventilation shafts for mines, aiming to improve the problems in the prior art that the cooperation of multiple people is required, the operation is complicated and time-consuming and labor-intensive.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An electric anti-wind locking device for an explosion-proof door of a mine vertical ventilation shaft comprises an explosion-proof cover and a locking mechanism, wherein the top side of the explosion-proof cover is fixedly connected to the bottom sides of a plurality of the locking mechanisms, the bottom side of the locking mechanism is fixedly connected to an embedded component, the top side of the embedded component is fixedly connected to a square tube, the inner wall of the square tube is slidably connected to a rack plate, the top side of the square tube is fixedly connected to a pressure wheel, the top side of the embedded component is fixedly connected to a shield, the inner wall of the shield is fixedly connected to a support tube, the adjacent sides of the plurality of support tubes are fixedly connected to an explosion-proof motor, the driving end of the explosion-proof motor is fixedly connected to a worm and worm gear reducer, the driving end of the worm and worm gear reducer is fixedly connected to a power output shaft, the outside of the power output shaft is fixedly connected to a clutch mechanism, the outside of the power output shaft is fixedly connected to a gear, the front end of the power output shaft is threadedly connected to an adjusting bolt, and the front end of the power output shaft is detachably connected to a clutch pin.

[0007] As a further description of the above technical solution:

[0008] The embedded component includes an anti-wind device bottom plate, the top side of the anti-wind device bottom plate is fixedly connected to the bottom side of the square tube, the left and right ends of the anti-wind device bottom plate are threadedly connected with a plurality of connecting bolts, the bottom ends of the plurality of connecting bolts are threadedly connected with embedded parts, and the left and right ends of the bottom side of the embedded parts are fixedly connected with a plurality of hooks.

[0009] As a further description of the above technical solution:

[0010] The embedded component also includes an anti-sealing device bottom plate, the top side of which is fixedly connected to the bottom side of the shield, the front and rear ends of the anti-sealing device bottom plate are threadedly connected with anchor bolts, and the front and rear ends of the bottom side of the anti-sealing device bottom plate are fixedly connected with hooks.

[0011] As a further description of the above technical solution:

[0012] The bottom side of the rack plate is slidably connected to the top side of the anti-wind device bottom plate, the right end of the top side of the anti-wind device bottom plate is fixedly connected to the bottom side of the closed position sensor, and the left end of the top side of the anti-wind device bottom plate is fixedly connected to the bottom side of the open position sensor.

[0013] As a further description of the above technical solution:

[0014] The top right end of the embedded component is fixedly connected to the in-place sensor, the top left end of the embedded component is fixedly connected to the bottom side of the opening in-place sensor, which is fixedly connected to the top right end of the bottom plate of the anti-sealing device, and the bottom side of the opening in-place sensor is fixedly connected to the top left end of the bottom plate of the anti-sealing device.

[0015] As a further description of the above technical solution:

[0016] The top side of the rack plate is meshedly connected to the outside of the gear, and the top side of the rack plate is slidably connected to the bottom side of the pressure wheel.

[0017] The utility model has the following beneficial effects:

[0018] 1. In the utility model, by stopping the movement of the locking mechanism at the correct position and cooperating with the anti-wind locking mechanism control box, the remote control of anti-wind locking and unlocking can be realized, so that the operator does not need to go to the explosion-proof door site to operate, and can perform remote control through the control box in the fan room, thereby reducing the labor cost.

[0019] 2. In the utility model, a manual adjustment bolt and a clutch mechanism are arranged on the transmission shaft of the transmission mechanism. In case of power outage or other emergency situations, the power transmission of the gear can be disconnected by adjusting the bolt, and the explosion-proof door can be opened or closed manually easily, which facilitates the operation in emergency situations and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional diagram of an electric anti-wind locking device for an explosion-proof door of a mine vertical ventilation shaft proposed by the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the bottom plate of an anti-wind device of an electric anti-wind locking device for an explosion-proof door of a mine vertical ventilation shaft proposed by the utility model;

[0022] Figure 3 This is a schematic diagram of the embedded parts structure of an electric anti-wind locking device for an explosion-proof door of a mine vertical ventilation shaft proposed by the utility model;

[0023] Figure 4 A schematic diagram of the bottom plate of an anti-sealing device of an electric anti-wind locking device for an explosion-proof door of a mine vertical ventilation shaft proposed by the utility model;

[0024] Figure 5 This is a schematic diagram of the power output shaft structure of an electric anti-wind locking device for a mine vertical ventilation shaft explosion-proof door proposed by the utility model;

[0025] Figure 6 This is a schematic diagram of the square tube structure of an electric anti-wind locking device for an explosion-proof door of a mine vertical ventilation shaft proposed by the utility model;

[0026] Figure 7 A schematic diagram of the structure of a pressure wheel of an electric anti-wind locking device for an explosion-proof door of a mine vertical ventilation shaft proposed by the utility model;

[0027] Figure 8 The utility model is a schematic diagram of the gear structure of an electric anti-wind locking device for an explosion-proof door of a mine vertical ventilation shaft.

[0028] Legend:

[0029] 1. Explosion-proof cover; 2. Locking mechanism; 3. Embedded components; 3101. Anti-wind device bottom plate; 3102. Connecting bolts; 3103. Embedded parts; 3104. Hook; 3201. Anti-sealing device bottom plate; 3202. Anchor bolts; 3203. Hook; 4. Support tube; 5. Protective cover; 6. Explosion-proof motor; 7. Worm gear reducer; 8. Gear; 9. Closed position sensor; 10. Square tube; 11. Rack plate; 12. Pressure wheel; 13. Opened position sensor; 14. Clutch mechanism; 15. Power output shaft; 16. Adjusting bolt; 17. Clutch pin. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Reference Figure 1 , Figure 2 and Figure 5 The utility model provides an embodiment: an electric anti-wind locking device for an explosion-proof door of a mine vertical ventilation shaft, which ensures a firm connection between an explosion-proof cover 1 and a locking mechanism 2, thereby ensuring the safety and reliability of the device, including an explosion-proof cover 1 and a locking mechanism 2, the top side of the explosion-proof cover 1 is fixedly connected to the bottom side of a plurality of locking mechanisms 2, the bottom side of the locking mechanism 2 is fixedly connected with an embedded component 3, the top right end of the embedded component 3 is fixedly connected with a relevant in-place sensor 9 for detecting whether the door is closed in place, the top left end of the embedded component 3 is fixedly connected with an open in-place sensor 13 for detecting whether the door is opened in place, the design of the bottom plate is intended to provide additional structural support, and is fixedly connected with key sensors, such as the closed in-place sensor 9 and an open position sensor 13, and the sensor is used to monitor the status of the device and perform corresponding control. The top side of the embedded component 3 is fixedly connected with a square tube 10 to provide support for the square tube 10. The inner wall of the square tube 10 is slidably connected with a rack plate 11 to limit the rack plate 11 so that the rack plate 11 can slide horizontally. The top side of the square tube 10 is fixedly connected with a pressure wheel 12 to resist the rack plate 11 and prevent the rack plate 11 from tilting. The top side of the rack plate 11 is meshed with the outside of the gear 8, and the rack plate 11 is driven to slide left and right by the rotation of the gear 8. The top side of the rack plate 11 is slidably connected to the bottom side of the pressure wheel 12. The top side of the embedded component 3 is fixedly connected with a shield 5 to protect internal components.

[0032] Reference Figure 6 - Figure 8 The inner wall of the protective cover 5 is fixedly connected with a support tube 4 to provide supporting force for the support tube 4. The adjacent sides of the multiple support tubes 4 are fixedly connected with explosion-proof motors 6, so that the explosion-proof motors 6 can operate stably. The driving end of the explosion-proof motor 6 is fixedly connected with a worm gear reducer 7, and the worm gear reducer 7 is powered by driving the explosion-proof motor 6. The driving end of the worm gear reducer 7 is fixedly connected with a power output shaft 15, which then drives the power output shaft 15 to rotate. The outside of the power output shaft 15 is fixedly connected with a clutch mechanism 14, and the outside of the power output shaft 15 is fixedly connected with a gear 8. The front end of the power output shaft 15 is threadedly connected with an adjusting bolt 16, and the front end of the power output shaft 15 is detachably connected with a clutch pin 17, which is convenient for repairing the power output shaft 15.

[0033] Reference Figure 2 and 4 The embedded component 3 includes an anti-wind device bottom plate 3101, the top side of the anti-wind device bottom plate 3101 is fixedly connected to the bottom side of the square tube 10, ensuring the stability and bearing capacity of the structure, the bottom side of the rack plate 11 is slidably connected to the top side of the anti-wind device bottom plate 3101, allowing the rack plate 11 to slide smoothly under the guidance of the anti-wind device bottom plate 3101, the top right end of the anti-wind device bottom plate 3101 is fixedly connected to the bottom side of the closed position sensor 9, which is used to detect whether the locking mechanism 2 has been closed in place, and the top left end of the anti-wind device bottom plate 3101 is fixedly connected to the bottom side of the open position sensor 13, which is used to detect whether the locking mechanism 2 is Whether it has been fully opened, these sensors provide precise control and feedback to ensure the normal operation of the locking mechanism 2. The left and right ends of the anti-wind device base plate 3101 are threaded with multiple connecting bolts 3102, which firmly connect the base plate with the embedded parts 3103. The bottom ends of the multiple connecting bolts 3102 are threaded with embedded parts 3103, which provide a supporting basis for the entire locking device. The left and right ends of the bottom side of the embedded parts 3103 are fixedly connected with multiple hooks 3104, which are used to further connect the embedded components 3 to the mine structure, thereby enhancing the stability and durability of the entire device.

[0034] Reference Figure 2 and Figure 5, different from the first embodiment, the embedded component 3 also includes an anti-sealing device bottom plate 3201, the top side of the anti-sealing device bottom plate 3201 is fixedly connected to the bottom side of the shield 5, and the top of the anti-sealing device bottom plate 3201 is fixedly connected to the bottom of the shield 5. This design allows the entire locking mechanism 2 to be better protected during operation to prevent external factors from interfering with the mechanical components. The front and rear ends of the anti-sealing device bottom plate 3201 are both threadedly connected with anchor bolts 3202. These anchor bolts 3202 ensure the firm connection between the bottom plate and the mine structure, enhance the overall stability and earthquake resistance of the structure, and the bottom side of the anti-sealing device bottom plate 3201 is fixedly connected with a hook 3 203, these hooks 3203 further strengthen the connection between the embedded part 3103 and the surrounding structure, making it more stable and able to maintain its position and function under extreme conditions. The bottom side of the closed position sensor 9 is fixedly connected to the top right end of the anti-sealing device bottom plate 3201, and the bottom side of the open position sensor 13 is fixedly connected to the top left end of the anti-sealing device bottom plate 3201. The arrangement of these sensors ensures that the operating status of the locking mechanism 2 at any time can be accurately monitored, whether it is fully closed or fully opened. This layout helps the remote monitoring system to accurately reflect the actual working condition of the locking mechanism 2, thereby providing a safer and more reliable operating environment.

[0035] Working principle: Embedded parts 3103 are evenly distributed around the outer wall of the explosion-proof door to fix the foundation fixing plate. The explosion-proof motor 6 drives the electric locking mechanism 2 according to the position of the embedded parts 3103. The power is transmitted to the power output shaft 15 through the reducer, and then the gear 8 rotates to drive the rack to move linearly in the groove. Then, four to eight locking pressure points are arranged according to the diameter of the shaft to ensure the closed state of the door body when the wind is reversed and to ensure that the explosion-proof door remains sealed when the wind is reversed. Then the end of the rack is designed to be an italic shape. When the gear When the rack is extended into place, it can press the door body to realize the locking function; when the rack is retracted, the door body is unlocked, and the locking mechanism 2 is installed with open and closed position sensors. When the locking and unlocking are in place, the action can stop automatically to ensure that the locking mechanism 2 stops moving at the correct position, and in conjunction with the anti-wind locking mechanism 2 control box, the anti-wind locking and unlocking can be remotely controlled, so that the operator does not need to go to the explosion-proof door site to operate, and can be remotely controlled through the control box in the fan room, thereby reducing the labor cost;

[0036] A locking and unlocking status display is also provided, so that the locking status of the explosion-proof door can be clearly understood in the fan room, allowing the operator to understand the working status of the explosion-proof door in real time, and communicate with the explosion-proof door through the fan online monitoring system, so that the anti-wind locking of the explosion-proof door can be interlocked with the fan or various equipment on site, thereby improving the automation and safety of the system. A manual adjustment bolt 16 and a clutch mechanism 14 are provided on the transmission shaft of the transmission mechanism. In the event of a power outage or other emergency, the power transmission of the gear 8 can be disconnected by adjusting the bolt 16, and the explosion-proof door can be easily opened or closed manually, which facilitates operation in an emergency and improves work efficiency.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric anti-wind locking device for an explosion-proof door of a mine ventilation shaft, comprising an explosion-proof cover (1) and a locking mechanism (2), characterized in that: The top side of the explosion-proof cover (1) is fixedly connected to the bottom sides of the plurality of locking mechanisms (2); the bottom sides of the locking mechanisms (2) are fixedly connected to an embedded component (3); the top side of the embedded component (3) is fixedly connected to a square tube (10); the inner wall of the square tube (10) is slidably connected to a rack plate (11); the top side of the square tube (10) is fixedly connected to a pressure wheel (12); the top side of the embedded component (3) is fixedly connected to a shield (5); the inner wall of the shield (5) is fixedly connected to a support tube (4); and the plurality of support tubes (4) are adjacent to each other. One side is fixedly connected with an explosion-proof motor (6), the driving end of the explosion-proof motor (6) is fixedly connected with a worm gear reducer (7), the driving end of the worm gear reducer (7) is fixedly connected with a power output shaft (15), the outside of the power output shaft (15) is fixedly connected with a clutch mechanism (14), the outside of the power output shaft (15) is fixedly connected with a gear (8), the front end of the power output shaft (15) is threadedly connected with an adjusting bolt (16), and the front end of the power output shaft (15) is detachably connected with a clutch pin shaft (17).

2. The electric anti-wind locking device for explosion-proof doors of mine ventilation shafts according to claim 1 is characterized in that: The embedded component (3) comprises an anti-wind device bottom plate (3101), the top side of the anti-wind device bottom plate (3101) is fixedly connected to the bottom side of the square tube (10), the left and right ends of the anti-wind device bottom plate (3101) are threadedly connected with a plurality of connecting bolts (3102), the bottom ends of the plurality of connecting bolts (3102) are threadedly connected with embedded parts (3103), and the left and right ends of the bottom side of the embedded parts (3103) are fixedly connected with a plurality of hooks (3104).

3. The electric anti-wind locking device for explosion-proof doors of mine ventilation shafts according to claim 2 is characterized in that: The embedded component (3) further comprises an anti-sealing device bottom plate (3201), the top side of the anti-sealing device bottom plate (3201) being fixedly connected to the bottom side of the protective cover (5), the front and rear ends of the anti-sealing device bottom plate (3201) being threadedly connected to anchor bolts (3202), and the front and rear ends of the bottom side of the anti-sealing device bottom plate (3201) being fixedly connected to hooks (3203).

4. The electric anti-wind locking device for explosion-proof doors of mine ventilation shafts according to claim 3 is characterized in that: The right end of the top side of the embedded component (3) is fixedly connected to a position sensor (9), and the left end of the top side of the embedded component (3) is fixedly connected to an opening position sensor (13).

5. The electric anti-wind locking device for explosion-proof doors of mine ventilation shafts according to claim 4 is characterized in that: The bottom side of the rack plate (11) is slidably connected to the top side of the anti-wind device bottom plate (3101), the top right end of the anti-wind device bottom plate (3101) is fixedly connected to the bottom side of the closed position sensor (9), and the top left end of the anti-wind device bottom plate (3101) is fixedly connected to the bottom side of the open position sensor (13).

6. The electric anti-wind locking device for explosion-proof doors of mine ventilation shafts according to claim 4 is characterized in that: The bottom side of the closed position sensor (9) is fixedly connected to the top right end of the bottom plate (3201) of the anti-sealing device, and the bottom side of the open position sensor (13) is fixedly connected to the top left end of the bottom plate (3201) of the anti-sealing device.

7. The electric anti-wind locking device for explosion-proof doors of mine ventilation shafts according to claim 1 is characterized in that: The top side of the rack plate (11) is meshingly connected to the outside of the gear (8), and the top side of the rack plate (11) is slidably connected to the bottom side of the pressure wheel (12).

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