阅读说明：本技术 一种自动清洁式气动薄膜调节阀 (Automatic pneumatic film governing valve of clean formula ) 是由 罗华明 陆国军 盛明铭 于 2021-03-10 设计创作，主要内容包括：本发明公开一种自动清洁式气动薄膜调节阀,包括气动腔、支架、导向管、阀体,气动腔安装于支架顶部,支架安装于导向管顶部,导向管安装于阀体顶部,气动腔顶部安装有进气管,气动腔内腔固定有气动薄膜,气动薄膜上安装有夹片,夹片固定于推杆顶部,推杆依次贯穿气动腔、支架,推杆底部安装有安装电机,安装电机输出轴连接旋转杆,导向管外周面套设有螺旋管,阀体上安装有出水台、进水台,螺旋管一端安装有出水管。本发明旋转杆内的清扫带可以从旋转杆内移出,进而通过安装电机带动旋转杆旋转,对阀体进行自动清洁,同时导向管上散热结构的设置可以有效避免旋转杆过热而造成影响阀芯的准确动作,散热的同时可以吸附周围多余的水分。(The invention discloses an automatic cleaning type pneumatic film regulating valve which comprises a pneumatic cavity, a support, a guide pipe and a valve body, wherein the pneumatic cavity is arranged at the top of the support, the support is arranged at the top of the guide pipe, the guide pipe is arranged at the top of the valve body, an air inlet pipe is arranged at the top of the pneumatic cavity, a pneumatic film is fixed in the cavity of the pneumatic cavity, a clamping piece is arranged on the pneumatic film, the clamping piece is fixed at the top of a push rod, the push rod sequentially penetrates through the pneumatic cavity and the support, an installation motor is arranged at the bottom of the push rod, an output shaft of the installation motor is connected with a rotating rod, a spiral pipe is sleeved on the. The cleaning belt in the rotary rod can be moved out of the rotary rod, so that the rotary rod is driven to rotate by the motor, the valve body is automatically cleaned, meanwhile, the heat dissipation structure on the guide pipe can effectively avoid the influence on the accurate action of the valve core caused by the overheating of the rotary rod, and the cleaning belt can absorb the redundant moisture around while dissipating heat.)

1. The utility model provides an automatic pneumatic film governing valve of clean formula, its characterized in that, includes pneumatic chamber (1), support (6), stand pipe (9), valve body (11), install in support (6) top pneumatic chamber (1), install in stand pipe (9) top support (6), install in valve body (11) top stand pipe (9), intake pipe (2) are installed at pneumatic chamber (1) top, pneumatic chamber (1) inner chamber is fixed with pneumatic film (3), install clamping piece (4) on pneumatic film (3), clamping piece (4) are fixed in push rod (5) top, push rod (5) run through pneumatic chamber (1), support (6) in proper order, installation motor (31) are installed to push rod (5) bottom, installation motor (31) output shaft rotary rod (30) cover is equipped with, guide pipe (9) outer peripheral face spiral pipe (17), the water outlet platform (13) and the water inlet platform (14) are installed on the valve body (11), a water outlet pipe (19) is installed at one end of the spiral pipe (17), the water outlet pipe (19) is far away from one end of the spiral pipe (17) and communicated with a water outlet pipe (20), a floating ball (21) is installed in an inner cavity of one side, close to the water outlet pipe (19), of the spiral pipe (17), a guide pillar (22) is installed on one side of the floating ball (21), one end, far away from the floating ball (21), of the guide pillar (22) is connected with a counterweight ball (23) through a steel wire line, an exhaust hole (24) is formed in one end, far away from the water outlet pipe (19), of the spiral pipe (17), two adjusting bolts (25) are installed at two ends of the support (6) in a rotating mode, the two adjusting bolts (25) are in threaded connection with an adjusting, the utility model discloses a valve body (11) is installed at rotary rod (30), arc (28) keep away from positioning spring (27) one end and install a plurality of direction ball (29), rotary rod (30) are close to bottom one side and rotate and install installation pole (32), install a plurality of cleaning belt (36) in installation pole (32) one side, cleaning belt (36) set up in rotary rod (30) inner chamber, intake platform (14) are kept away from valve body (11) one end and are installed inlet tube (37), be provided with two filter (38) in inlet tube (37), overhead gage (42) are installed at inlet tube (37) inner wall top, overhead gage (42) below is provided with down baffle (43).

2. A self-cleaning pneumatic diaphragm regulating valve according to claim 1, wherein a stroke scale (8) is mounted on the bracket (6), a stroke pointer (7) is mounted on the rotating rod (30), and the stroke pointer (7) is arranged in the bracket (6).

3. The pneumatic diaphragm regulating valve of claim 1, wherein the guide tube (9) is provided with a filler (10), and the inner wall of the spiral tube (17) is provided with a water-absorbing material.

4. The automatic cleaning type pneumatic membrane regulating valve is characterized in that the water outlet table (13) and the water inlet table (14) are respectively installed at two ends of the valve body (11), two water blocking blocks (18) are installed on inner walls of two sides of the valve body (11), two valve blocks (12) are installed on the rotating rod (30), the two valve blocks (12) are arranged in an up-down opposite mode, the sealing valve core (15) is installed at the bottom of the rotating rod (30), the water discharging table (16) is installed at the bottom of the valve body (11), and the two water blocking blocks (18) respectively correspond to the two valve blocks (12) in a one-to-one mode.

5. The automatic cleaning type pneumatic membrane regulating valve is characterized in that two arc-shaped plates (28) are respectively arranged on two sides of a push rod (5), a micro motor (35) is arranged in an inner cavity of a rotating rod (30), an output shaft of the micro motor (35) is connected with a second belt pulley (34), a mounting rod (32) is coaxially connected with the first belt pulley (33), and the first belt pulley (33) is in transmission connection with the second belt pulley (34) through a belt.

6. The automatic cleaning type pneumatic membrane regulating valve according to claim 1, characterized in that a ball screw (39) is arranged between the two filter plates (38), a fixed motor (41) is installed at the bottom of the outer wall of the water inlet pipe (37), the output shaft of the fixed motor (41) is connected with the ball screw (39), the ball screw (39) is in threaded connection with two brush plates (40), the two brush plates (40) correspond to the two filter plates (38) one by one, and the brush plates (40) are in contact with the filter plates (38).

7. The pneumatic membrane regulating valve of claim 1, wherein the lower baffle (43) is of an arc-shaped structure, a collecting groove (44) is mounted at the bottom of the outer wall of the water inlet pipe (37), and the collecting groove (44) is arranged below the lower baffle (43).

8. A self-cleaning pneumatic diaphragm regulator valve as claimed in any one of claims 1 to 7 which operates as follows:

the method comprises the following steps: the water enters the water inlet pipe (37), the water is firstly filtered by the two filter plates (38), then sequentially enters the water inlet table (14) through the upper baffle (42) and the lower baffle (43), the fixed motor (41) is started, the output shaft of the fixed motor (41) drives the ball screw (39) to rotate, the ball screw (39) drives the two brush plates (40) to lift, the two brush plates (40) respectively brush filtered matters on the two filter plates (38), and impurities in the water fall into the collecting tank (44) through the blocking of the upper baffle (42) and the lower baffle (43);

step two: when the push rod (5) deviates, an adjusting bolt (25) is screwed, the adjusting bolt (25) drives an adjusting plate (26) to horizontally move, the adjusting plate (26) drives a positioning spring (27) to horizontally move, the positioning spring (27) drives an arc-shaped plate (28) to horizontally move, the arc-shaped plate (28) drives the deviated push rod (5) to horizontally move to a central position through a guide ball (29), outside air enters a pneumatic cavity (1) through an air inlet pipe (2), air pressure in the pneumatic cavity (1) downwards extrudes a pneumatic film (3), the pneumatic film (3) drives the push rod (5) to descend through a clamping piece (4), the push rod (5) drives a rotating rod (30) to descend through an installation motor (31), and the rotating rod (30) drives two valve blocks (12) and a sealing valve core (15) to ascend and descend, so that the adjustment of the adjusting valve is completed;

step three: when cleaning, the micro-motion motor (35) is started, the output shaft of the micro-motion motor (35) drives the second belt pulley (34) to rotate, the second belt pulley (34) drives the first belt pulley (33) to rotate through a belt, the first belt pulley (33) coaxially drives the mounting rod (32) to rotate, the mounting rod (32) drives the cleaning belt (36) to move out of the rotating rod (30), the mounting motor (31) is started, the output shaft of the mounting motor (31) drives the rotating rod (30) to rotate, then the cleaning belt (36) cleans the inner cavity of the valve body (11), the water absorption material on the inner wall of the spiral pipe (17) absorbs the nearby water, the rotating rod (30) is cooled, meanwhile, the steam evaporated in the spiral pipe (17) is discharged through the exhaust hole (24), the water which is not evaporated in the spiral pipe (17) is discharged to the water discharge pipe (20) through the water discharge pipe (19), and the water which is not evaporated is discharged through the water discharge pipe (20).

Technical Field

The invention relates to the technical field of regulating valve design, in particular to an automatic cleaning type pneumatic membrane regulating valve.

Background

The regulating valve is the most widely used type of final control element, other final control elements include a metering pump, a regulating baffle plate, a shutter type baffle plate (a butterfly valve variant), a variable-inclination fan blade, a current regulating device and a motor positioning device different from the valve, and usually consists of an electric actuating mechanism or a pneumatic actuating mechanism and a regulating valve, the pneumatic membrane regulating valve is a regulating device in a pneumatic unit combination instrument, is one of important devices in a production process automatic regulating system, receives an output signal of the regulating instrument to close and open the valve so as to achieve automatic regulation of parameters such as pressure, temperature, flow, liquid level and the like, and can be widely applied to automatic regulation and remote control of chemical industry, petroleum industry, metallurgy industry, electric power industry, light textile industry.

The existing pneumatic membrane regulating valve cannot be automatically cleaned, the regulating valve needs to be manually disassembled or high-pressure gas is introduced into the regulating valve, the former easily causes the poor sealing performance of the pneumatic membrane regulating valve, the latter still needs to disassemble and assemble a sealing rod on the pneumatic membrane regulating valve, the integral sealing performance of the pneumatic membrane regulating valve cannot be guaranteed, and meanwhile, the two cannot finish the self-cleaning of the pneumatic membrane regulating valve. Simultaneously current pneumatic film governing valve leads to easily under long-time operating conditions overheated with stand pipe complex valve rod, and then leads to the inside hot air of stand pipe to drive the condition that the skew appears in the stand pipe, can have certain moisture around the pneumatic film governing valve that has now simultaneously, and moisture causes the corrosion to the device on the pneumatic film governing valve easily. When the valve rod deflects, the existing pneumatic membrane regulating valve is inconvenient to regulate the push rod. The water inlet before current pneumatic membrane governing valve does not have corresponding filtration design usually, and the long-term use of current filtration design simultaneously needs to change the filter, and the water inlet is the obstructed condition of appearing equally easily.

Disclosure of Invention

The invention aims to provide an automatic cleaning type pneumatic membrane regulating valve, which solves the following technical problems: (1) the cleaning belt in the rotating rod of the automatic cleaning type pneumatic film regulating valve can move out of the rotating rod, and further the rotating rod is driven to rotate by the output shaft of the micromotor, the belt pulley drives the belt pulley to rotate through the belt, the belt pulley coaxially drives the mounting rod to rotate, the mounting rod drives the cleaning belt to move out of the rotating rod, the mounting motor is started, the output shaft of the mounting motor drives the rotating rod to rotate, so that the cleaning belt cleans an inner cavity of the valve body, a water absorbing material on the inner wall of the spiral pipe absorbs nearby water to dissipate heat of the rotating rod, evaporated water vapor in the spiral pipe is discharged through the exhaust hole, non-evaporated water in the spiral pipe is discharged to the water discharge pipe through the water discharge pipe, and the water discharge pipe discharges the non-evaporated water. Meanwhile, due to the arrangement of the heat dissipation structure on the guide pipe, the influence on the accurate action of the valve core caused by overheating of the rotary rod can be effectively avoided, redundant water around the valve core can be absorbed while heat dissipation is carried out, the problems that the pneumatic film regulating valve is deviated and the precision is reduced due to overheating of the valve rod in the prior art are solved, and the redundant water around the pneumatic film regulating valve is solved while the problems are solved; (2) when the push rod deviates, the adjusting bolt is screwed, the adjusting bolt drives the adjusting plate to horizontally move, the adjusting plate drives the positioning spring to horizontally move, the positioning spring drives the arc-shaped plate to horizontally move, the arc-shaped plate drives the deviated push rod to horizontally move to a central position through the guide ball, external air enters the pneumatic cavity through the air inlet pipe, air pressure in the pneumatic cavity downwards extrudes the pneumatic thin film, the pneumatic thin film drives the push rod to descend through the clamping piece, the push rod drives the rotary rod to descend through the installation motor, the rotary rod drives the two valve blocks and the sealing valve core to ascend and descend, the adjustment of the adjusting valve is completed, and through the structural arrangement, the automatic cleaning type pneumatic film regulating valve can be used for efficiently regulating the offset push rod, the precision of the push rod is ensured, and the technical problem that the service life of the pneumatic film regulating valve is easily reduced due to the fact that the push rod is inconvenient to regulate and the pneumatic film regulating valve needs to be disassembled for regulation in the prior art is solved; (3) in water gets into the water pipe, water is at first through the filtration of two filters, then loop through the overhead gage, the baffle gets into the platform of intaking down, open fixed motor, the fixed motor output shaft drives ball and rotates, ball drives two brush boards and goes up and down, two brush boards are respectively with under the filter thing brush on two filters, the impurity of aquatic passes through the overhead gage, the blocking of baffle falls into in the collecting vat down, through above structure setting, this automatic cleaning formula pneumatic membrane governing valve can carry out filtration treatment to intaking, effectually filter the filter residue, can avoid the filter to appear the obstructed condition through the setting of brush board simultaneously, need change the filter when solving current filtration design among the prior art and using for a long time, and the obstructed technical problem appears easily at the water inlet.

The purpose of the invention can be realized by the following technical scheme:

an automatic cleaning type pneumatic film regulating valve comprises a pneumatic cavity, a support, a guide pipe and a valve body, wherein the pneumatic cavity is arranged at the top of the support, the support is arranged at the top of the guide pipe, the guide pipe is arranged at the top of the valve body, an air inlet pipe is arranged at the top of the pneumatic cavity, a pneumatic film is fixed in the inner cavity of the pneumatic cavity, a clamping piece is arranged on the pneumatic film, the clamping piece is fixed at the top of a push rod, the push rod sequentially penetrates through the pneumatic cavity and the support, an installation motor is arranged at the bottom of the push rod, an output shaft of the installation motor is connected with a rotating rod, a spiral pipe is sleeved on the peripheral surface of the guide pipe, a water outlet platform and a water inlet platform are arranged on the valve body, a water outlet pipe is arranged at one end of the spiral, the utility model discloses a water inlet pipe, including guide pillar, outlet pipe, support, mounting rod, water inlet table, water inlet pipe, water outlet pipe, steel wire line connection counterweight ball, the guide pillar is kept away from floater one end and is passed through, the spiral pipe is kept away from outlet pipe one end and has been seted up the exhaust hole, two adjusting bolt are all rotated and installed at the support both ends, two equal threaded connection regulating plates of adjusting bolt, a plurality of positioning spring are installed to regulating plate one side, a plurality of positioning spring are kept away from regulating plate one end fixed connection arc to a plurality of positioning spring, the arc is kept away from positioning spring one end and is installed a plurality of direction ball, the rotary rod is close to bottom one side and is rotated and install the installation pole.

Further, install the stroke scale on the support, install the stroke pointer on the rotary rod, the stroke pointer sets up in the support.

Furthermore, the guide pipe is internally provided with a filler, and the inner wall of the spiral pipe is provided with a water absorption material.

Further, go out the water platform, the platform of intaking is installed respectively in the valve body both ends, two blocks of hindering water are installed to valve body both sides inner wall, install two valve pieces on the rotary rod, two valve pieces are relative setting up from top to bottom, sealed case is installed to the rotary rod bottom, the platform of launching is installed to the valve body bottom, and two blocks of hindering water respectively with two valve piece one-to-one.

Further, two arcs set up respectively in the push rod both sides, the rotary rod inner chamber is provided with micro-motion motor, micro-motion motor output shaft belt pulley two, installation pole coaxial coupling belt pulley one, be connected through belt transmission between belt pulley one and the belt pulley two.

Further, be provided with ball between two filters, the fixed motor is installed to intake pipe outer wall bottom, fixed motor output shaft connects ball, two brush boards of ball threaded connection, two brush boards and two filter one-to-one, the brush board contacts with the filter.

Further, the lower baffle is of an arc-shaped structure, a collecting tank is installed at the bottom of the outer wall of the water inlet pipe, and the collecting tank is arranged below the lower baffle.

Further, the working process of the regulating valve is as follows:

the method comprises the following steps: water enters a water inlet pipe, the water is firstly filtered by two filter plates and then enters a water inlet platform through an upper baffle and a lower baffle in sequence, a fixed motor is started, an output shaft of the fixed motor drives a ball screw to rotate, the ball screw drives two brush plates to lift, the two brush plates respectively brush down filtered materials on the two filter plates, and impurities in the water fall into a collecting tank through the blocking of the upper baffle and the lower baffle;

step two: when the push rod deviates, an adjusting bolt is screwed, the adjusting bolt drives an adjusting plate to horizontally move, the adjusting plate drives a positioning spring to horizontally move, the positioning spring drives an arc-shaped plate to horizontally move, the arc-shaped plate drives the deviated push rod to horizontally move to a central position through a guide ball, external air enters a pneumatic cavity through an air inlet pipe, air pressure in the pneumatic cavity downwards extrudes a pneumatic thin film, the pneumatic thin film drives the push rod to descend through a clamping piece, the push rod drives a rotary rod to descend through an installation motor, the rotary rod drives two valve blocks and a sealing valve core to ascend and descend, and adjustment of the adjusting valve is completed;

step three: when cleaning, the micro-gap motor is started, the output shaft of the micro-gap motor drives the second belt pulley to rotate, the second belt pulley drives the first belt pulley to rotate through the belt, the belt pulley drives the installation rod to rotate coaxially, the installation rod drives the cleaning belt to move out of the rotary rod, the installation motor is started, the output shaft of the installation motor drives the rotary rod to rotate, the cleaning belt cleans the inner cavity of the valve body, the water absorbing material on the inner wall of the spiral pipe absorbs the water nearby, the rotary rod dissipates heat, meanwhile, the evaporated water vapor in the spiral pipe is discharged through the exhaust hole, the water which is not evaporated in the spiral pipe is discharged to the water discharge pipe through the water discharge pipe, and the water discharge pipe.

The invention has the beneficial effects that:

(1) according to the automatic cleaning type pneumatic film regulating valve, the micro motor is started, the output shaft of the micro motor drives the second belt pulley to rotate, the second belt pulley drives the first belt pulley to rotate through the belt, the belt pulley coaxially drives the mounting rod to rotate, the mounting rod drives the cleaning belt to move out of the rotating rod, the mounting motor is started, the output shaft of the mounting motor drives the rotating rod to rotate, the cleaning belt further cleans the inner cavity of the valve body, the water absorbing material on the inner wall of the spiral pipe absorbs nearby water to dissipate heat of the rotating rod, evaporated water vapor in the spiral pipe is discharged through the exhaust hole, water which is not evaporated in the spiral pipe is discharged to the water discharge pipe through the water outlet pipe, the water discharge pipe discharges the water which is not evaporated, and through the structural arrangement, the cleaning belt in the rotating rod on the automatic cleaning type pneumatic film regulating valve can move out of the rotating rod, and the rotating rod, the valve body is automatically cleaned, meanwhile, due to the arrangement of the heat dissipation structure on the guide pipe, the influence on the accurate action of the valve core caused by the overheating of the rotating rod can be effectively avoided, and redundant moisture around can be adsorbed while heat dissipation is realized;

(2) when the push rod deviates, an adjusting bolt is screwed, the adjusting bolt drives an adjusting plate to move horizontally, the adjusting plate drives a positioning spring to move horizontally, the positioning spring drives an arc plate to move horizontally, the arc plate drives the deviated push rod to move horizontally to a central position through a guide ball, external gas enters a pneumatic cavity through a gas inlet pipe, air pressure in the pneumatic cavity extrudes a pneumatic film downwards, the pneumatic film drives the push rod to descend through a clamping piece, the push rod drives a rotary rod to descend through an installation motor, the rotary rod drives two valve blocks and a sealing valve core to ascend and descend, the adjustment of the adjusting valve is completed, and through the structural arrangement, the automatic cleaning type pneumatic film adjusting valve can efficiently adjust the deviated push rod and ensure the precision of the push rod;

(3) in water gets into the water pipe, water is at first through the filtration of two filters, then loop through the overhead gage, the baffle gets into the platform of intaking down, open fixed motor, the fixed motor output shaft drives ball and rotates, ball drives two brush boards and goes up and down, two brush boards are respectively with under the filtration thing brush on two filters, the impurity of aquatic passes through the overhead gage, the blocking of baffle falls into in the collecting vat down, through above structure setting, this pneumatic membrane governing valve of self-cleaning formula can carry out filtration treatment to intaking, effectually filter the filter residue, can avoid the filter condition that the filter appears blocking through the setting of brush board simultaneously.

Drawings

The invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic diagram of a self-cleaning pneumatic diaphragm regulator valve according to the present invention;

FIG. 2 is an installation view of the guide ball of the present invention;

FIG. 3 is an internal structural view of the spiral pipe of the present invention;

FIG. 4 is a view of the mounting of the rotary lever of the present invention;

FIG. 5 is an enlarged view taken at A of FIG. 4 in accordance with the present invention;

fig. 6 is an internal structure view of the water inlet pipe of the present invention.

In the figure: 1. a pneumatic chamber; 2. an air inlet pipe; 3. a pneumatic membrane; 4. a clip; 5. a push rod; 6. a support; 7. a trip pointer; 8. a travel scale; 9. a guide tube; 10. a filler; 11. a valve body; 12. a valve block; 13. a water outlet platform; 14. a water inlet platform; 15. sealing the valve core; 16. a water discharging platform; 17. a spiral tube; 18. a water blocking block; 19. a water outlet pipe; 20. a drain pipe; 21. a floating ball; 22. a guide post; 23. a counterweight ball; 24. an exhaust hole; 25. adjusting the bolt; 26. an adjusting plate; 27. a positioning spring; 28. an arc-shaped plate; 29. a guide ball; 30. rotating the rod; 31. installing a motor; 32. mounting a rod; 33. a first belt pulley; 34. a second belt pulley; 35. a micromotion motor; 36. cleaning the belt; 37. a water inlet pipe; 38. a filter plate; 39. a ball screw; 40. brushing the board; 41. fixing a motor; 42. an upper baffle plate; 43. a lower baffle plate; 44. and (4) collecting the tank.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the invention is an automatic cleaning type pneumatic membrane regulating valve, comprising a pneumatic cavity 1, a support 6, a guide tube 9 and a valve body 11, wherein the pneumatic cavity 1 is installed on the top of the support 6, the support 6 is installed on the top of the guide tube 9, the guide tube 9 is installed on the top of the valve body 11, an air inlet pipe 2 is installed on the top of the pneumatic cavity 1, a pneumatic membrane 3 is fixed in the inner cavity of the pneumatic cavity 1, a clamping piece 4 is installed on the pneumatic membrane 3, the clamping piece 4 is fixed on the top of a push rod 5, the push rod 5 sequentially penetrates through the pneumatic cavity 1 and the support 6, an installation motor 31 is installed at the bottom of the push rod 5, an output shaft of the installation motor 31 is connected with a rotating rod 30, a spiral pipe 17 is sleeved on the outer peripheral surface of the guide tube 9, a water outlet table 13 and a water inlet table 14 are installed, guide pillar 22 is installed to floater 21 one side, guide pillar 22 keeps away from floater 21 one end and passes through steel wire line connection counterweight ball 23, spiral pipe 17 keeps away from 19 one ends of outlet pipe and has seted up exhaust hole 24, 6 both ends of support are all rotated and are installed two adjusting bolt 25, two equal threaded connection regulating plate 26 of adjusting bolt 25, a plurality of positioning spring 27 are installed to regulating plate 26 one side, a plurality of positioning spring 27 keep away from regulating plate 26 one end fixed connection arc 28, arc 28 keeps away from positioning spring 27 one end and installs a plurality of direction ball 29, rotary rod 30 is close to bottom one side and rotates and install installation pole 32, a plurality of clear zones 36 are installed to installation pole 32 one side, clear zones 36 set up in the rotary rod 30 inner chamber, intake platform 14 keeps away from 11 one end of valve body and installs inlet tube 37, be provided with two filter 38 in the inlet tube 37, upper shield 42 is.

Specifically, a stroke scale 8 is mounted on the bracket 6, a stroke pointer 7 is mounted on the rotating rod 30, and the stroke pointer 7 is arranged in the bracket 6.

The guide tube 9 is internally provided with a filler 10, and the inner wall of the spiral tube 17 is provided with a water absorption material.

The water outlet table 13 and the water inlet table 14 are respectively installed at two ends of the valve body 11, two water blocking blocks 18 are installed on inner walls of two sides of the valve body 11, two valve blocks 12 are installed on the rotary rod 30, the two valve blocks 12 are arranged in an up-down opposite mode, the sealing valve core 15 is installed at the bottom of the rotary rod 30, the water discharging table 16 is installed at the bottom of the valve body 11, and the two water blocking blocks 18 are in one-to-one correspondence with the two valve blocks 12 respectively.

The two arc plates 28 are respectively arranged at two sides of the push rod 5, the inner cavity of the rotating rod 30 is provided with a micromotion motor 35, the output shaft of the micromotion motor 35 is connected with a second belt pulley 34, the mounting rod 32 is coaxially connected with the first belt pulley 33, and the first belt pulley 33 is in transmission connection with the second belt pulley 34 through a belt.

Be provided with ball 39 between two filter 38, fixed motor 41 is installed to inlet tube 37 outer wall bottom, and fixed motor 41 output shaft connects ball 39, and two brush boards 40 of ball 39 threaded connection, two brush boards 40 and two filter 38 one-to-one, brush board 40 and filter 38 contact.

Lower baffle 43 is the arc structure, and collecting vat 44 is installed to inlet tube 37 outer wall bottom, and collecting vat 44 sets up in baffle 43 below down.

Referring to fig. 1-6, the operation of the self-cleaning pneumatic diaphragm control valve of the present embodiment is as follows:

the method comprises the following steps: water enters the water inlet pipe 37, the water is firstly filtered by the two filter plates 38 and then enters the water inlet table 14 through the upper baffle 42 and the lower baffle 43 in sequence, the fixed motor 41 is started, the output shaft of the fixed motor 41 drives the ball screw 39 to rotate, the ball screw 39 drives the two brush plates 40 to lift, the two brush plates 40 respectively brush filtered matters on the two filter plates 38, and impurities in the water fall into the collecting tank 44 through the blocking of the upper baffle 42 and the lower baffle 43;

step two: when the push rod 5 deviates, the adjusting bolt 25 is screwed, the adjusting bolt 25 drives the adjusting plate 26 to horizontally move, the adjusting plate 26 drives the positioning spring 27 to horizontally move, the positioning spring 27 drives the arc-shaped plate 28 to horizontally move, the arc-shaped plate 28 drives the deviated push rod 5 to horizontally move to a central position through the guide ball 29, external air enters the pneumatic cavity 1 through the air inlet pipe 2, the air pressure in the pneumatic cavity 1 downwards extrudes the pneumatic thin film 3, the pneumatic thin film 3 drives the push rod 5 to descend through the clamping piece 4, the push rod 5 drives the rotary rod 30 to descend through the installation motor 31, and the rotary rod 30 drives the two valve blocks 12 and the sealing valve core 15 to ascend and descend, so that the adjustment of the adjusting;

step three: when cleaning, the micro-motion motor 35 is started, the output shaft of the micro-motion motor 35 drives the second belt pulley 34 to rotate, the second belt pulley 34 drives the first belt pulley 33 to rotate through a belt, the first belt pulley 33 coaxially drives the installation rod 32 to rotate, the installation rod 32 drives the cleaning belt 36 to move out of the rotary rod 30, the installation motor 31 is started, the output shaft of the installation motor 31 drives the rotary rod 30 to rotate, the cleaning belt 36 cleans the inner cavity of the valve body 11, the water absorbing material on the inner wall of the spiral pipe 17 absorbs the moisture nearby, the rotary rod 30 dissipates heat, meanwhile, the evaporated water vapor in the spiral pipe 17 is discharged through the exhaust holes 24, the water which is not evaporated in the spiral pipe 17 is discharged to the drain pipe 20 through the water outlet pipe 19, and.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.