Automatic drainage device for non-pressure air door air supply pipe

Abstract

The utility model relates to an automatic drainage device for a non-pressure air door air supply pipe. In order to fill up the blank in the prior art, the water accumulation device comprises a water accumulation container, the water accumulation container comprises an upper barrel and a lower barrel which are connected through threads, a stainless steel hollow buoy and a guide frame are arranged in the water accumulation container, a connecting rod is arranged in the center below the stainless steel hollow buoy, and the guide frame comprises an upper circular positioning pore plate, a lower circular positioning pore plate and a guide pipe. The connecting rod is arranged in the guide pipe in a penetrating mode, a conical valve plug is arranged at the lower end of the connecting rod, the top of the upper barrel body is communicated with a water inlet pipe, a valve is arranged on the water inlet pipe, the bottom of the lower barrel body is communicated with a water drainage pipe, and a conical hole section corresponding to the conical valve plug is arranged at an inner opening of the water drainage pipe. And otherwise, the conical valve plug is separated from the inner opening of the drainage pipe. The device is simple in structure, small in size, reliable in operation, convenient to disassemble and assemble and suitable for being used in cooperation with the non-pressure air door.

Description

TECHNICAL FIELD

[0001] The utility model relates to an automatic drainage device for air supply pipe of non-pressure air door. BACKGROUND

[0002] At present, non-pressure air doors are widely used in underground coal mines. The non-pressure air door is driven to open and close by low-pressure air. When a small amount of water is mixed in the air supply pipe of the non-pressure air door, the normal operation of the non-pressure air door will be affected. The existing technology is to install a water accumulation pipe on the air supply pipe by welding, and install a drainage valve at the lower part of the water accumulation pipe. Every certain time, a special person is arranged to open the drainage valve to drain water, which is very inconvenient.

[0003] On September 23, 2022, the authorized announcement and announcement number CN217481483U of the Chinese utility model patent discloses a drainage device based on an air compression system, which comprises a tank body, an inlet liquid pipeline, a liquid discharge pipeline and an inspection pipeline are arranged on the tank body, an electromagnetic valve is arranged on the liquid discharge pipeline, a detection guide rod is vertically arranged in the tank body, one end of the detection guide rod is detachably connected with the inner wall of the tank body, and the other end of the detection guide rod extends out of the inspection pipeline; a controller is arranged outside the tank body, first and second Hall switches are arranged in the detection guide rod, a magnetic floating ball is sleeved on the outer wall of the detection guide rod, the first and second Hall switches are used to send a relay signal to the controller when the magnetic floating ball moving up and down is detected, control the opening and closing of the electromagnetic valve, and a cover plate, a cap and a silica gel sealing gasket are arranged at the distal end of the inspection pipeline. Although the device can only drain water and not air, it is large in size and complex in structure, and is not suitable for being matched with the air supply pipe of the non-pressure air door. SUMMARY

[0004] The technical problem to be solved by the utility model is how to fill the above-mentioned gap in the prior art, and to provide an automatic drainage device suitable for the air supply pipe of the non-pressure air door.

[0005] To solve the above technical problems, the automatic water drainage device for the air supply pipe of the non-pressure air door comprises a water storage container connected to the low part of the air supply pipe of the non-pressure air door, characterized in that the water storage container comprises an upper cylinder and a lower cylinder which are connected through threads, a stainless steel hollow float and a guide frame are arranged in the water storage container, a connecting rod is arranged at the lower center of the stainless steel hollow float, the guide frame is composed of upper and lower circular positioning hole plates and guide pipes connected to the centers of the upper and lower circular positioning hole plates at two ends, a plurality of through holes are formed in the upper and lower circular positioning hole plates, a boss is arranged on the inner wall of the lower cylinder, the outer edge of the lower circular positioning hole plate is clamped on the boss of the inner wall of the lower cylinder, the connecting rod is arranged in the guide pipe, a conical valve plug is arranged at the lower end of the connecting rod, the top of the upper cylinder is closed, a water inlet pipe is connected to the center of the top, a valve is arranged on the water inlet pipe, the bottom of the lower cylinder is closed, and a drainage pipe is connected to the center of the bottom, a conical hole section corresponding to the conical valve plug is arranged at the inner opening of the drainage pipe, when the water in the water storage container is not enough to float the stainless steel hollow float, the conical valve plug is arranged at the inner opening of the drainage pipe to prevent air leakage, and when the water in the water storage container is enough to float the stainless steel hollow float, the conical valve plug is separated from the inner opening of the drainage pipe to drain water.

[0006] As an optimization, external threads are formed on the outer wall of the upper end of the lower cylinder, and an O-shaped sealing ring is sleeved on the external threads, corresponding internal threads are arranged on the inner wall of the lower end of the upper cylinder, and the upper and lower cylinders are connected through the internal and external threads.

[0007] The automatic water drainage device for the air supply pipe of the non-pressure air door has the advantages of simple structure, small size, reliable operation, convenient disassembly and assembly, and suitability for use in combination with the non-pressure air door. BRIEF DESCRIPTION OF DRAWINGS

[0008] The automatic water drainage device for the air supply pipe of the non-pressure air door will be further described below with reference to the drawings:

[0009] Figure 1 is a sectional view of the upper cylinder in the automatic water drainage device for the air supply pipe of the non-pressure air door (cut along a vertical plane passing through the axis);

[0010] Figure 2 is a sectional view of the lower cylinder in the automatic water drainage device for the air supply pipe of the non-pressure air door (cut along a vertical plane passing through the axis);

[0011] Figure 3 is a sectional view of the stainless steel hollow float, the connecting rod and the conical valve plug in the automatic water drainage device for the air supply pipe of the non-pressure air door (cut along a vertical plane passing through the axis);

[0012] Figure 4This is a cross-sectional structural diagram of the guide frame in the automatic drainage device for the air supply pipe of the pressureless damper (cut along a vertical plane passing through the axis).

[0013] Figure 5 This is a schematic cross-sectional view of the automatic drainage device for the air supply pipe of the pressureless damper in the non-draining state (cut along a vertical plane passing through the axis line);

[0014] Figure 6 yes Figure 5 The diagram shows the drainage of an automatic drainage device for the air supply pipe of the pressureless damper.

[0015] In the diagram: 1 is the upper cylinder, 2 is the lower cylinder, 3 is the stainless steel hollow float, 4 is the guide frame, 41 is the upper circular positioning plate, 42 is the lower circular positioning plate, 43 is the guide tube, 5 is the connecting rod, 6 is the through hole, 7 is the boss, 8 is the conical valve plug, 9 is the water inlet pipe, 10 is the valve, 11 is the drain pipe, 12 is the conical section, 13 is the O-ring seal, and 14 is the water accumulation. Detailed Implementation

[0016] Implementation method one: such as Figures 1-6 As shown, the automatic drainage device for the pressureless damper air supply pipe includes a water collection container. The upper end of the water collection container is connected to the lower part of the pressureless damper air supply pipe (not shown in the figure). The water collection container includes an upper cylinder 1 and a lower cylinder 2, which are connected by threads. A stainless steel hollow float 3 and a guide frame 4 are provided inside the water collection container. A connecting rod 5 is provided at the center of the lower part of the stainless steel hollow float 3. The guide frame 4 is composed of an upper circular positioning plate 41, a lower circular positioning plate 42, and guide pipes 43 connected at both ends to the centers of the upper and lower circular positioning plates 41 and 42, respectively. Multiple through holes 6 are opened on the upper and lower circular positioning plates 41 and 42. A boss 7 is provided on the inner wall of the lower cylinder 2. The lower circular positioning plate 42... The outer edge is secured to the protrusion 7 on the inner wall of the lower cylinder 2. The connecting rod 5 passes through the guide tube 43. A conical valve plug 8 is provided at the lower end of the connecting rod 5. The top of the upper cylinder 1 is closed, and the center of the top is connected to a water inlet pipe 9. A valve 10 is provided on the water inlet pipe 9. The bottom of the lower cylinder 2 is closed, and a drain pipe 11 is connected to the center of the bottom. The inner opening of the drain pipe 11 is provided with a conical hole section 12 corresponding to the conical valve plug 8. When the water 14 in the water collection container is insufficient to float the stainless steel hollow float 3, the conical valve plug 8 is on the inner opening of the drain pipe 11 to prevent air leakage. When the water 14 in the water collection container is sufficient to float the stainless steel hollow float 3, the conical valve plug 8 is disengaged from the inner opening of the drain pipe 11 to drain water.

[0017] The upper outer wall of the lower cylinder 2 has an external thread and is fitted with an O-ring seal 13. The lower inner wall of the upper cylinder 1 has a corresponding internal thread. The upper cylinder 1 and the lower cylinder 2 are connected by internal and external threads.

Claims

1. An automatic drainage device for a pressureless damper air supply pipe, comprising a water collection container, the upper end of which is connected to the lower part of the pressureless damper air supply pipe, characterized in that: The water-collecting container includes an upper cylinder and a lower cylinder, which are connected by threads. Inside the container is a stainless steel hollow float and a guide frame. A connecting rod is located at the center of the lower part of the stainless steel hollow float. The guide frame consists of upper and lower circular positioning plates and guide tubes connected at both ends to the centers of the upper and lower circular positioning plates, respectively. Multiple through holes are formed on the upper and lower circular positioning plates. A boss is provided on the inner wall of the lower cylinder. The outer edge of the lower circular positioning plate is engaged with the boss on the inner wall of the lower cylinder. The connecting rod passes through the guide tube. A conical valve plug is provided at the lower end of the connecting rod. The top of the upper cylinder is closed, and the center of the top is connected to a water inlet pipe with a valve. The bottom of the lower cylinder is closed, and a drain pipe is connected to the center of the bottom. The inner opening of the drain pipe has a conical hole section corresponding to the conical valve plug. When the water in the water collection container is insufficient to float the stainless steel hollow float, the conical valve plug is placed on the inner opening of the drain pipe to prevent air leakage. When the water in the water collection container is sufficient to float the stainless steel hollow float, the conical valve plug disengages from the inner opening of the drain pipe to drain the water.

2. The automatic drainage device for the air supply pipe of the pressureless damper according to claim 1, characterized in that: The lower cylinder has an external thread on its upper outer wall and is fitted with an O-ring seal. The upper cylinder has a corresponding internal thread on its lower inner wall. The upper and lower cylinders are connected by the internal and external threads.

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