Pneumatic positive and negative pressure full-automatic water discharging device

Abstract

The invention discloses a pneumatic positive and negative pressure full-automatic water discharging device, and belongs to the technical field of mining auxiliary equipment, the pneumatic positive and negative pressure full-automatic water discharging device comprises a circulating gas assembly, a partition plate, a water storage shell, a filtering assembly, a water outlet pipeline, a control device, a pneumatic diaphragm pump, a pressure transformation assembly and a water inlet assembly, the partition plate is mounted in the water storage shell, and a plurality of mounting holes are formed in the partition plate; a fixing plate is mounted at the left end of a water storage shell, a filtering assembly is mounted in a mounting hole, a pneumatic diaphragm pump is mounted above the fixing plate, a control device is mounted at the left end of the fixing plate, a gas supply pipeline is mounted between the control device and the pneumatic diaphragm pump, a circulating gas assembly is mounted at the upper end of the water storage shell, and a water inlet assembly is mounted at the upper end of the water storage shell. The water inlet component is arranged on the left side of the circulating gas component. The problem that in the prior art, an extraction pipe is blocked due to the fact that an existing water drainage device cannot automatically drain water in a timing mode is solved. The problem that water cannot be drained in time is effectively solved, the universality is improved, and meanwhile the safety is improved.

Description

Technical Field

[0001] The invention relates to the technical field of mining auxiliary equipment, and in particular to a pneumatic positive and negative pressure fully automatic water discharger. Background Art

[0002] During coal mining, gas is a mixture of methane, carbon dioxide and nitrogen that escapes from coal and surrounding rocks. This mixture not only pollutes the air, but when the gas content in the air is 5% to 16%, it can cause explosions and accidents when it encounters fire. Therefore, gas extraction is required during excavation. However, a large amount of water is generally accumulated in the gas extraction pipe. Therefore, in order to solve the problem of water accumulation in the gas extraction pipeline, it is necessary to pump water from the gas extraction pipeline regularly.

[0003] Most of the existing water dischargers use manual water discharge, but this water discharge method requires the appointment of special personnel to supervise, and then use the water discharge device to discharge the gas pipeline at a fixed time and at a fixed point. If the staff is busy or cannot reach the site to perform the water discharge operation, in this case, if the water accumulation in the pipeline cannot be handled in time, it is very easy to cause pipeline blockage, which in turn affects the gas transportation. Excessive gas accumulation can easily cause explosions, threatening the lives of the staff. In addition, when manually draining water, due to the close distance to the extraction pipe, the gas discharged with the water is inhaled by the human body, which will also affect human health. Most of the existing automatic water dischargers are easily damaged, and the air extraction often fails to work normally, resulting in water accumulation in the gas extraction pipeline, a large amount of maintenance, and affecting the gas extraction effect.

[0004] Therefore, how to provide a pneumatic positive and negative pressure fully automatic drain device to solve the inconvenience of using the existing drainage device is a technical problem that needs to be solved urgently by technical personnel in this field. Summary of the invention

[0005] To this end, the present invention provides a pneumatic positive and negative pressure fully automatic water drainer to solve the problem in the prior art that the existing water draining device cannot automatically and regularly drain water, thereby causing the pumping pipe to be blocked.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] The invention discloses a pneumatic positive and negative pressure fully automatic water discharger, comprising:

[0008] A water storage shell is provided with a partition plate inside, a plurality of mounting holes are provided on the partition plate, and a fixing plate is provided on the left end of the water storage shell;

[0009] A plurality of filter components are installed in the installation holes;

[0010] A pneumatic diaphragm pump is installed above the fixed plate;

[0011] A control device is installed at the left end of the fixed plate, an air supply pipeline is installed between the control device and the pneumatic diaphragm pump, and a five-way valve is installed on the air supply pipeline;

[0012] A circulating gas component is installed on the upper end of the water storage shell, one end of the circulating gas component is inserted in the water storage shell, and the other end is inserted in the five-way valve;

[0013] A water inlet assembly is installed at the upper end of the water storage housing, and the water inlet assembly is arranged on the left side of the circulating gas assembly;

[0014] A transformer assembly, one end of which is mounted above the left surface of the water storage housing, and the other end of which is inserted into the five-way valve;

[0015] One end of the water outlet pipe passes through the bottom of the water storage shell and is arranged inside the water storage shell, and the other end of the water outlet pipe passes through the fixing plate and is arranged in the pneumatic diaphragm pump.

[0016] In one possible implementation, a water injection space and a water storage space are formed between the partition and the water storage shell, one end of the water outlet pipe is arranged in the water storage space, and a liquid level sensor is provided in the water storage space. The liquid level sensors are arranged in pairs, and the liquid level sensors are connected to the control device through a wire. A plurality of supporting legs are installed at the bottom end of the water storage shell and the control device, and an observation hole is provided on the front surface of the water storage shell.

[0017] In a possible implementation, the filtering component includes:

[0018] A sleeve is installed in the installation hole, and a first clamping plate is provided at the right end of the sleeve;

[0019] A filter plate is mounted on the left end of the sleeve;

[0020] A telescopic cylinder is slidably connected in the sleeve, and a second clamping plate is provided at the left end of the telescopic cylinder;

[0021] A plurality of drainage holes are arranged on the side wall of the telescopic cylinder.

[0022] In a possible implementation, the circulating gas component includes:

[0023] A first air pump is mounted on the upper end of the water storage housing;

[0024] A pressure balance pipe, one end of which passes through the upper surface of the water storage housing and the other end of which is installed in the first air pump;

[0025] A second air pump is installed at the upper end of the water storage housing, and the second air pump is arranged at the front end of the first air pump;

[0026] an exhaust pipe, one end of which is inserted into the five-way valve and the other end of which is installed in the second air pump;

[0027] An air reservoir is installed at the upper end of the water storage shell. The air reservoir is arranged on the right side of the second air pump and the first air pump. The air reservoir is respectively connected to the second air pump and the first air pump through an air pipe.

[0028] In a possible implementation, the water inlet assembly includes:

[0029] A water inlet pipe, one end of which passes through the upper plate of the water storage shell, and a ball valve is installed inside the water inlet pipe;

[0030] A mounting member, mounted on the upper end of the water storage housing, wherein a rotating member is mounted inside the mounting member;

[0031] An air supply pipeline, one end of which passes through the side wall of the mounting member and the other end of which is mounted in the transformer assembly;

[0032] One end of the first gear set passes through the mounting member and is connected to the rotating member, and the other end of the first gear set passes through the side wall of the water inlet pipe and is connected to the ball valve.

[0033] In a possible implementation, the control device includes:

[0034] A connecting piece, mounted on the left end of the fixing plate, wherein a control circuit is arranged inside the connecting piece;

[0035] A rotating motor is installed on the left side of the connecting piece;

[0036] A rotating rod, transmission-connected to the output end of the rotating motor;

[0037] An air intake assembly, one end of which is inserted into the connector and the other end of which is inserted into the compressed air pipeline;

[0038] One end of the second gear set is mounted on the air intake assembly, and the other end is sleeved on the rotating rod.

[0039] In a possible implementation, the air intake assembly includes:

[0040] An air guide pipe, one end of which is inserted into the connecting piece, and a portion of the second gear set is sleeved on the outer side of the air guide pipe;

[0041] Wind shields are arranged in pairs and installed at the other end of the air guide duct;

[0042] The trapezoidal air guide block is installed between the two wind shields.

[0043] The present invention uses a circulating gas component to make the air pressure in the water storage shell lower than the standard atmospheric pressure. At this time, water will be drawn into the extraction pipe and the water storage shell under the action of the internal pressure difference. After the water is filtered by the filter component, the control device is used to suck the gas in the compressed air pipeline, and the gas is supplied to the pneumatic diaphragm pump. The diaphragm pump is started. At this time, it is positive pressure water suction, and the water in the water storage shell can be gradually sucked out. The circulating gas component is provided to supply the air sucked out of the water storage shell to the pneumatic diaphragm pump through the five-way valve to avoid waste. At the same time, it can also deal with the situation when there is no gas circulation in the compressed air pipeline. The present invention not only achieves the effect of automatic drainage, but also uses the characteristics of the pneumatic diaphragm pump to completely isolate the tank body from the outside world, avoiding coal ash from entering the pump body and causing blockage. While improving versatility, it reduces harm to the human body and the environment and reduces maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0045] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0046] Figure 1 A cross-sectional view of the pneumatic positive and negative pressure fully automatic water discharger provided by the present invention;

[0047] Figure 2 A three-dimensional diagram of the filter assembly provided by the present invention;

[0048] Figure 3 A three-dimensional diagram of a circulating gas assembly provided by the present invention;

[0049] Figure 4 A cross-sectional view of a water inlet assembly provided by the present invention;

[0050] Figure 5 A three-dimensional diagram of a control device provided by the present invention;

[0051] Figure 6 A three-dimensional diagram of the air intake assembly provided by the present invention;

[0052] In the figure: 1 circulating air assembly; 11 second air pump; 12 exhaust pipe; 13 pressure balance pipe; 14 first air pump; 15 air storage cylinder; 2 partition; 3 water storage shell; 4 filter assembly; 41 telescopic cylinder; 42 drainage hole; 43 filter plate; 44 sleeve; 5 water outlet pipe; 6 control device; 61 rotating motor; 62 rotating rod; 63 second gear set; 64 air intake assembly; 641 air guide pipe; 642 trapezoidal air guide block; 643 wind shield; 65 connecting part; 7 pneumatic diaphragm pump; 8 voltage transformer assembly; 9 water inlet assembly; 91 water inlet pipe; 92 air supply pipeline; 93 rotating part; 94 mounting part; 95 first gear set. DETAILED DESCRIPTION

[0053] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0054] Please refer to Figure 1-Figure 5 Now, a pneumatic positive and negative pressure fully automatic water discharger disclosed by the present invention is described. The present invention is composed of nine parts, such as Figure 1 , including a circulating gas component 1, a partition 2, a water storage shell 3, a filter component 4, a water outlet pipe 5, a control device 6, a pneumatic diaphragm pump 7, a transformer component 8 and a water inlet component 9, a partition 2 is installed inside the water storage shell 3, a plurality of mounting holes are opened on the partition 2, a fixed plate is installed at the left end of the water storage shell 3, a plurality of filter components 4 are installed in the mounting holes, a pneumatic diaphragm pump 7 is installed above the fixed plate, a control device 6 is installed at the left end of the fixed plate, an air supply pipe is installed between the control device 6 and the pneumatic diaphragm pump 7, and a five-way valve is installed on the air supply pipe Valve, the circulating gas component 1 is installed on the upper end of the water storage shell 3, one end of the circulating gas component 1 is inserted in the water storage shell 3, and the other end is inserted in the five-way valve, the water inlet component 9 is installed on the upper end of the water storage shell 3, and the water inlet component 9 is arranged on the left side of the circulating gas component 1, one end of the transformer component 8 is installed above the left surface of the water storage shell 3, and the other end of the transformer component 8 is inserted in the five-way valve, one end of the water outlet pipe 5 passes through the bottom of the water storage shell 3 and is arranged inside the water storage shell 3, and the other end of the water outlet pipe 5 passes through the fixed plate and is arranged in the pneumatic diaphragm pump 7.

[0055] When the present invention is in use, the upper end of the water inlet component 9 is inserted into the gas extraction pipeline, and the air inlet component 64 is inserted into the compressed air pipeline. Then, the circulating gas component 1 is started to extract part of the air in the water storage shell 3, so that the remaining gas inside the water storage shell 3 has a larger flow space and its pressure becomes smaller. Then, under the action of the pressure difference between the water storage shell 3 and the gas extraction pipeline, water is pumped into the water storage shell 3. When the water volume reaches the preset height of the liquid level sensor, the water level signal will be fed back to the control device 6. The air inlet component 64 is started by the control device to suck in the gas in the compressed air pipeline. At the same time, the circulating gas component 1 will be started again to fill the gas sucked out from the water storage shell 3 together with the gas in the compressed air pipeline into the pneumatic diaphragm pump 7. Under the action of the pneumatic diaphragm pump 7, water will enter the pneumatic diaphragm pump 7 along the water outlet pipe 5 and be discharged through the pipe connected to the pneumatic diaphragm pump 7.

[0056] In a specific embodiment, a water injection space and a water storage space are formed between the partition 2 and the water storage shell 3, one end of the water outlet pipe 5 is arranged in the water storage space, a liquid level sensor is arranged in the water storage space, the liquid level sensor is arranged in pairs, the liquid level sensor and the control device 6 are connected by a wire, a plurality of legs are installed at the bottom of the water storage shell 3 and the control device 6, and an observation hole is arranged on the front surface of the water storage shell 3. The observation hole is arranged for observing the internal operation, and the water drawn in by the water inlet component 9 will first flow into the water injection space, and the water in the water injection space will enter the water storage space after being filtered by the filter component 4, and then the liquid level will be detected by two liquid level sensors, and the water level data will be fed back to the control device 6 through the wire to determine whether to perform the drainage operation.

[0057] In a specific embodiment, Figure 2The filter assembly 4 includes a telescopic cylinder 41, a drainage hole 42, a filter plate 43 and a sleeve 44. The sleeve 44 is installed in the installation hole. A first clamp is provided at the right end of the sleeve 44. The filter plate 43 is installed at the left end of the sleeve 44. The telescopic cylinder 41 is slidably connected in the sleeve 44. A second clamp is provided at the left end of the telescopic cylinder 41. A plurality of drainage holes 42 are provided on the side wall of the telescopic cylinder 41. The water entering the water injection space will generate water pressure, which will push the telescopic cylinder 41 so that the telescopic cylinder 41 extends outward along the sleeve 44. At this time, the drainage holes 42 are exposed, and the water will flow into the water storage space along the drainage holes 42. Different water inflow will generate different water pressures. Therefore, the telescopic cylinder 41 is driven to move by water pressure, which can effectively control the drainage speed. Because the greater the water pressure, the more the telescopic cylinder 41 extends, and the more exposed drainage holes 42 are. In addition, different numbers of filter assemblies 4 can be used according to the amount of water. In addition, this sliding structure is more like a one-way valve. When the water storage space is filled with water, the water pressure of the telescopic cylinder 41 is increased. When the water storage space is filled with water, the water pressure of the telescopic cylinder 41 is increased. When the water pressure of the telescopic cylinder 41 is increased, the drainage holes 42 are increased. When the water pressure of the telescopic cylinder 41 is increased, the drainage speed ... When there is too much water in the water tank, the water pressure will also increase. At this time, the pressure driving the telescopic cylinder 41 to extend outward will be less than the pressure pushing the telescopic cylinder 41 back. At this time, the telescopic cylinder 41 will return to the sleeve 44. At this time, the water in the water injection space cannot flow to the water storage space, and the water in the water storage space cannot flow back. At this time, the water storage space can be drained, which effectively improves the drainage efficiency. Not only that, the telescopic cylinder 41 and the filter plate 43 can be equivalent to a double filter screen, which effectively prevents impurities from entering and prevents the water outlet pipe 5 from being blocked. The design of two clamping plates can prevent the telescopic cylinder 41 from slipping.

[0058] In a specific embodiment, Figure 3The circulating gas component 1 includes a second air pump 11, an exhaust pipe 12, a pressure balance pipe 13, a first air pump 14 and an air cylinder 15. The first air pump 14 is installed at the upper end of the water storage shell 3. One end of the pressure balance pipe 13 passes through the upper surface of the water storage shell 3, and the other end is installed in the first air pump 14. The second air pump 11 is installed at the upper end of the water storage shell 3. The second air pump 11 is arranged at the front end of the first air pump 14. One end of the exhaust pipe 12 is inserted in the five-way valve, and the other end is installed in the second air pump 11. The air cylinder 15 is installed at the upper end of the water storage shell 3. The air cylinder 15 is arranged on the right side of the second air pump 11 and the first air pump 14. The air cylinder 15 is connected to the second air pump 11 and the first air pump 14 through air pipes. When in use, the first air pump 14 is started, and part of the air inside the water storage shell 3 is sucked out through the pressure balance pipe 13 and discharged into the air cylinder 15. When drainage is performed, the second air pump 11 is started to extract the air in the air cylinder 15, and the gas is discharged into the five-way valve through the exhaust pipe 12. When the air pressure inside the water storage shell 3 needs to be balanced, the gas in the five-way valve can also be extracted through the second air pump 11 and filled into the air cylinder 15. Then the first air pump 14 extracts the gas in the air cylinder 15 and pumps it into the water storage shell 3. Through the setting of the air cylinder 15, when there is no wind in the compressed air pipeline, the gas in the air cylinder 15 can be used to replace the wind in the compressed air pipeline to ensure that the pumping operation can be carried out continuously.

[0059] In a specific embodiment, Figure 4 The water inlet assembly 9 includes a water inlet pipe 91, an air supply pipe 92, a rotating member 93, a mounting member 94 and a first gear set 95. One end of the water inlet pipe 91 passes through the upper plate of the water storage shell 3, a ball valve is installed inside the water inlet pipe 91, the mounting member 94 is installed on the upper end of the water storage shell 3, a rotating member 93 is installed inside the mounting member 94, one end of the air supply pipe 92 passes through the side wall of the mounting member 94, and the other end is installed in the transformer assembly 8, one end of the first gear set 95 passes through the mounting member 94 and is connected to the rotating member 93, and the other end of the first gear set 95 passes through the side wall of the water inlet pipe 91 and is connected to the ball valve. The amount of water in the water injection space is limited. Therefore, if there is too much water in the water injection space, it is necessary to stop injecting water, or when maintenance or replacement of parts is required, the water injection must be stopped. The way to stop the water injection is to inject gas into the gas supply pipeline 92 through the transformer component 8. The transformer component increases the gas pressure by changing the gas flow area, and the gas enters the mounting part 94 through the gas supply pipeline 92. The entering gas pushes the rotating part 93 to rotate through the air pressure, and then the rotating part 93 drives the first gear group 95 to move, and then the first gear group 95 drives the ball valve to rotate to achieve the purpose of closing or opening.

[0060] In a specific embodiment, Figure 5, the control device 6 includes a rotating motor 61, a rotating rod 62, a second gear set 63, an air intake assembly 64 and a connecting member 65. The connecting member 65 is installed at the left end of the fixed plate, and a control circuit is arranged inside the connecting member 65. The rotating motor 61 is installed on the left side of the connecting member 65. The rotating rod 62 is connected to the output end of the rotating motor 61 by transmission. One end of the air intake assembly 64 is inserted in the connecting member 65, and the other end is inserted in the compressed air pipeline. One end of the second gear set 63 is installed on the air intake assembly 64, and the other end is sleeved on the rotating rod 62. The control assembly 6 is used to drive the drainage operation. When the control circuit receives the warning water level signal, it will drive the rotating motor 61 to start operating. The rotating motor 61 makes the rotating rod 62 start to rotate. The rotating rod 62 drives the second gear set 63 to operate. The second gear set 63 rotates with the air intake assembly 64, so that the air intake assembly 64 starts to guide the air.

[0061] Based on the previous embodiment, Figure 6 The air intake assembly 64 includes an air duct 641, a trapezoidal air guide block 642 and an air shield 643. One end of the air duct 641 is inserted into the connector 65. A portion of the second gear set 63 is sleeved on the outer side of the air duct 641. The air shields 643 are arranged in pairs and installed at the other end of the air duct 641. The trapezoidal air guide block 642 is installed between the two air shields 643. When the air is not entering, the air shield 643 is perpendicular to the wind direction. The wind hits the air shield 643 and cannot be introduced into the air duct 641. When the air needs to enter, the air shield 643 will rotate. At this time, the trapezoidal air guide block 642 is perpendicular to the wind direction. The wind will enter the air duct 641 along the inclined surface of the trapezoidal air guide block 642.

[0062] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. A pneumatic positive and negative pressure fully automatic water discharger, characterized in that: include: A water storage shell (3) is internally installed with a partition (2), the partition (2) is provided with a plurality of installation holes, and a fixing plate is installed at the left end of the water storage shell (3); A plurality of filter components (4) are installed in the installation holes; A pneumatic diaphragm pump (7) is installed above the fixed plate; A control device (6) is installed at the left end of the fixed plate, an air supply pipeline is installed between the control device (6) and the pneumatic diaphragm pump (7), and a five-way valve is installed on the air supply pipeline; A circulating gas component (1) is installed on the upper end of the water storage housing (3), one end of the circulating gas component (1) is inserted into the water storage housing (3), and the other end is inserted into the five-way valve; A water inlet assembly (9) is installed at the upper end of the water storage housing (3), and the water inlet assembly (9) is arranged on the left side of the circulating gas assembly (1); A voltage transformer assembly (8), one end of which is mounted above the left surface of the water storage housing (3), and the other end of which is inserted into the five-way valve; One end of a water outlet pipe (5) passes through the bottom of the water storage shell (3) and is arranged inside the water storage shell (3); the other end of the water outlet pipe (5) passes through the fixing plate and is arranged in the pneumatic diaphragm pump (7).

2. The pneumatic positive and negative pressure fully automatic water discharger according to claim 1, characterized in that: A water injection space and a water storage space are formed between the partition (2) and the water storage shell (3); one end of the water outlet pipe (5) is arranged in the water storage space; a liquid level sensor is arranged in the water storage space; the liquid level sensor is arranged in pairs; the liquid level sensor and the control device (6) are connected via a wire; a plurality of legs are installed at the bottom ends of the water storage shell (3) and the control device (6); and an observation hole is arranged on the front surface of the water storage shell (3).

3. The pneumatic positive and negative pressure fully automatic water discharger according to claim 1, characterized in that: The filter assembly (4) comprises: A sleeve (44) is installed in the installation hole, and a first clamping plate is provided at the right end of the sleeve (44); A filter plate (43) mounted on the left end of the sleeve (44); A telescopic cylinder (41) is slidably connected in the sleeve (44), and a second clamping plate is provided at the left end of the telescopic cylinder (41); A plurality of drainage holes (42) are provided on the side wall of the telescopic cylinder (41).

4. The pneumatic positive and negative pressure fully automatic water discharger according to claim 1, characterized in that: The circulating gas component (1) comprises: A first air pump (14) is installed on the upper end of the water storage housing (3); A pressure balance pipe (13), one end of which passes through the upper surface of the water storage housing (3) and the other end of which is installed in the first air pump (14); A second air pump (11) is installed at the upper end of the water storage housing (3), and the second air pump (11) is arranged at the front end of the first air pump (14); an exhaust pipe (12), one end of which is inserted into the five-way valve and the other end of which is installed in the second air pump (11); An air storage cylinder (15) is installed at the upper end of the water storage housing (3). The air storage cylinder (15) is arranged on the right side of the second air pump (11) and the first air pump (14). The air storage cylinder (15) is respectively connected to the second air pump (11) and the first air pump (14) through an air pipe.

5. The pneumatic positive and negative pressure fully automatic water drainer according to claim 1, characterized in that: The water inlet assembly (9) comprises: A water inlet pipe (91), one end of which passes through the upper plate of the water storage housing (3), and a ball valve is installed inside the water inlet pipe (91); A mounting member (94) is mounted on the upper end of the water storage housing (3), and a rotating member (93) is mounted inside the mounting member (94); An air supply pipeline (92), one end of which passes through the side wall of the mounting member (94) and the other end of which is mounted in the transformer assembly (8); One end of the first gear set (95) passes through the mounting member (94) and is connected to the rotating member (93); the other end of the first gear set (95) passes through the side wall of the water inlet pipe (91) and is connected to the ball valve.

6. The pneumatic positive and negative pressure fully automatic water drainer according to claim 1, characterized in that: The control device (6) comprises: A connecting member (65) is installed at the left end of the fixing plate, and a control circuit is arranged inside the connecting member (65); A rotating motor (61) is installed on the left side of the connecting member (65); A rotating rod (62) drivingly connected to the output end of the rotating motor (61); An air intake assembly (64), one end of which is inserted into the connecting piece (65) and the other end of which is inserted into the compressed air pipeline; The second gear set (63) has one end mounted on the air intake assembly (64) and the other end sleeved on the rotating rod (62).

7. The pneumatic positive and negative pressure fully automatic water discharger as claimed in claim 6, characterized in that: The air intake assembly (64) comprises: An air guide pipe (641), one end of which is inserted into the connecting piece (65), and a portion of the second gear set (63) is sleeved on the outer side of the air guide pipe (641); Wind shields (643), arranged in pairs and installed at the other end of the wind guide duct (641); The trapezoidal air guide block (642) is installed between the two air shielding plates (643).

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