Anti-blocking regulating valve for sewage pipeline of municipal construction site

Abstract

The utility model belongs to the field of sewage treatment, and provides a municipal construction site sewage pipeline anti-blocking adjusting valve which comprises a valve body, a first flange plate is fixedly installed at one end of the valve body, a second flange plate is fixedly installed at the other end of the valve body, and an arc-shaped opening is formed in the position, close to the middle, of the outer wall of the top of the first flange plate. The U-shaped plate is fixedly installed in the valve body, an opening of the U-shaped plate faces the first flange plate, and blocking pieces are fixedly installed on the outer walls of the upper side and the lower side of the opening of the U-shaped plate; the valve elements move back and forth at the valve seats through power on and power off of the electromagnet, so that dirt at the valve seats and the valve elements is shaken off and discharged along with sewage, the rotating mechanism is started to drive the two valve elements to rotate reversely, the sewage at the valve seats moves more violently, and accumulated and blocked dirt can be directly discharged along with the sewage conveniently. Therefore, normal circulation of sewage in the valve body is ensured.

Description

Technical Field

[0001] The utility model belongs to the field of sewage treatment, and specifically relates to an anti-clogging regulating valve for sewage pipelines in municipal construction sites. Background Art

[0002] A regulating valve refers to a valve used to regulate process parameters such as the flow rate, pressure, temperature, and liquid level of a medium in the field of industrial automation process control. According to the control signal in the automation system, it automatically adjusts the opening degree of the valve, thereby realizing the regulation of the flow rate, pressure, temperature, and liquid level of the medium. When carrying out municipal construction, it is necessary to ensure the smooth drainage of the sewage pipelines in the construction site and avoid pipeline blockage. Therefore, an anti-clogging regulating valve for sewage pipelines in municipal construction sites is required.

[0003] In the Chinese patent with the publication number CN114855966B, a regulating valve is mentioned, especially an anti-clogging regulating valve for sewage pipelines in municipal construction sites. The utility model provides such an anti-clogging regulating valve for sewage pipelines in municipal construction sites, which includes a first connecting pipe, a mounting pipe, a second connecting pipe, etc. The left and right sides of the mounting pipe are respectively connected with a second connecting pipe and a first connecting pipe. The sewage pipeline is externally connected through the thread on the second connecting pipe. When sewage flows into the interior of the mounting pipe from the first connecting pipe, the filter plate filters the impurities in the sewage, and the scraper scrapes the impurities attached to the mounting pipe, so as to avoid impurities flowing into the sewage pipeline and achieving a good effect of the pipeline anti-clogging regulating valve.

[0004] However, there are some problems when the above device is used. The specific position for regulating the flow rate of the sewage pipeline is the moving part inside the valve body, and it is necessary to adjust the opening size to change the flow rate, which is the place where the regulating valve is prone to blockage inside. If the specific position for flow rate regulation is not dredged, it will cause the regulating ability of the subsequent regulating valve to fail, thus affecting the transportation of sewage. Summary of the Utility Model

[0005] In order to solve the above technical problems, the utility model provides an anti-clogging regulating valve for sewage pipelines in municipal construction sites to solve the problem that in the prior art, the specific position for flow rate regulation is not dredged, resulting in the failure of the regulating ability of the subsequent regulating valve and thus affecting the transportation of sewage.

[0006] An anti-clogging regulating valve for sewage pipelines in municipal construction sites includes:

[0007] A valve body, one end of the valve body is fixedly installed with a first flange, the other end of the valve body is fixedly installed with a second flange, and an arc-shaped opening is formed at a position near the middle on the outer wall of the top of the first flange;

[0008] U-shaped plate, the U-shaped plate is fixedly installed inside the valve body, the opening of the U-shaped plate faces flange one, and baffle plates are fixedly installed on the outer walls on the upper and lower sides of the opening of the U-shaped plate. The U-shaped plate and the two baffle plates divide the internal space of the valve body into chamber one and chamber two. Installation openings are formed on the outer walls on the upper and lower sides of the U-shaped plate, and valve seats are fixedly installed inside the two installation openings.

[0009] Flow regulating mechanism, the two flow regulating mechanisms are respectively installed on the inner walls of the two valve seats, and the adjacent ends of the two flow regulating mechanisms are in contact with each other.

[0010] Rotating mechanism, the two rotating mechanisms are respectively installed on the outer walls on the upper and lower sides of the valve body. The rotating mechanism and the flow regulating mechanism are on the same straight line, and one end of the rotating mechanism is connected to the corresponding flow regulating mechanism.

[0011] Filtering mechanism, a fixing plate is vertically installed on the outer wall of the top of the valve body, the filtering mechanism is installed on one side outer wall of the fixing plate, and one side of the filtering mechanism is located inside the arc-shaped opening.

[0012] Preferably, the filtering mechanism includes a driving part and a filtering part. The driving part includes a stepping motor one, the stepping motor one is installed on one side outer wall of the fixing plate, one end of the output shaft of the stepping motor one is fixed with a transmission shaft, and one end of the transmission shaft is sleeved with a sleeve.

[0013] Preferably, the filtering part includes a plurality of connecting rods, the connecting rods are installed on the circumferential outer wall of the sleeve at equal intervals, one end of the connecting rod is fixedly installed with a sealing gasket, an annular plate is fixed on the circumferential inner wall of the sealing gasket, a filter net is fixed on the circumferential inner wall of the annular plate, the width of the annular plate is the same as the width of the arc-shaped opening, and the outer diameter of the annular plate is the same as the inner diameter of the valve body.

[0014] Preferably, the rotating mechanism includes a mounting plate, the mounting plate is fixed on the outer wall of the valve body, a stepping motor two is fixed on the surface of the mounting plate, and one end of the output shaft of the stepping motor two is fixed with a connecting shaft.

[0015] Preferably, through holes are formed at positions on the outer walls on the upper and lower sides of the valve body close to the mounting plate, sealing sleeves are fixedly installed on the circumferential inner walls of the through holes, and the connecting shaft is inserted into the circumferential inner wall of the sealing sleeve.

[0016] Preferably, the flow regulating mechanism includes a damping seat fixed to one end of the connecting shaft. One end of the damping seat is movably inserted with a damping rod. Electromagnets are fixedly installed at one ends of the two damping rods. The two electromagnets are in contact with each other. A sleeve plate is fixedly installed on the circumferential outer wall of the damping seat. One end of the sleeve plate is provided with a buffer spring. The buffer spring is wound around the circumferential outer walls of the damping seat and the damping rod. One end of the buffer spring is fixed with a valve core. The valve core is slidably clamped on the circumferential inner wall of the valve seat. A plurality of connecting rods are installed on one outer wall of the electromagnet. One end of the connecting rod is installed on one end of the valve core.

[0017] Preferably, an oil chamber I is arranged inside the damping seat. An oil chamber II is arranged inside the damping seat near one end of the damping rod. A piston valve is arranged at one end of the damping rod. The oil chamber I and the oil chamber II are connected through the piston valve. The oil chamber I and the oil chamber II are filled with damping liquid.

[0018] Preferably, vibrators are fixedly installed on one outer walls of the two baffles. A round hole is opened on one outer wall of the U-shaped plate. A solenoid valve is installed on the inner wall of the round hole.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] 1. The utility model is provided with a filtering mechanism. The filtering mechanism cooperates with the first flange to intercept solid debris in the sewage. The sewage pipe is connected to the valve body through the first flange, reducing the entry of solid debris into the valve body. The stepping motor I drives the annular plate and the filter net to rotate, facilitating the removal of the used filter net when there is no sewage in the sewage pipe and replacing it with a new filter net for subsequent filtering.

[0021] 2. The present utility model is provided with a flow regulating mechanism and a rotating mechanism. When it is necessary to open the valve body to output sewage, two electromagnets are energized. After the two electromagnets are energized, a mutually repulsive force is generated, the buffer spring is compressed, and then the damping rod is driven to press into the damping seat, and the valve core leaves the valve seat, so that the inside of the valve seat is opened, facilitating the sewage to be discharged from the chamber one to the chamber two through the upper and lower ports, and then discharged to the pipeline connected to the flange two. When discharging sewage, the energy generated by the repulsive force of the electromagnet is converted into the elastic potential energy of the compressed buffer spring, and then the piston valve inside the damping rod and the damping seat is opened, and the internal damping liquid flows. The elastic potential energy is converted into the energy of the internal damping liquid flowing. The flowing of the damping liquid makes the energy converted into heat energy, which is dissipated from the outer walls of the damping rod and the damping seat. The dissipated heat energy facilitates softening the sundries blocked at the valve seat and the valve core, so that they are discharged along with the sewage. When it is necessary to deal with the dirt accumulated at the valve seat and the valve core, the valve core reciprocates at the valve seat by the energization and de-energization of the electromagnet, so as to shake off the dirt at the valve seat and the valve core and discharge it along with the sewage. The rotating mechanism is started to drive the two valve cores to rotate in the reverse direction, making the sewage at the valve seat move more violently, facilitating the direct discharge of the accumulated and blocked dirt along with the sewage, thus ensuring the normal circulation of the sewage inside the valve body and enabling the flow regulating mechanism to stably control the size of the sewage discharge flow rate.

[0022] 3. The present utility model is provided with a vibrator and a solenoid valve. The vibration of the vibrator facilitates driving the vibration of the baffle, so that the inside of the chamber two vibrates, and the dirt on the surface of the U-shaped plate is shaken off and taken away by the sewage. The solenoid valve makes an additional drain port inside the valve body, strengthening the drainage function of the sewage pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is the overall structural schematic diagram of the first embodiment of the present utility model;

[0024] Figure 2 is the internal structural schematic diagram of the valve body of the first embodiment of the present utility model;

[0025] Figure 3 is the sectional structural schematic diagram of the valve body of the first embodiment of the present utility model;

[0026] Figure 4 is the partial exploded view of the first embodiment of the present utility model;

[0027] Figure 5 is the sectional structural schematic diagram of the valve body of the second embodiment of the present utility model.

[0028] In the figure:

[0029] 1. Valve body; 2. First flange; 3. Arc-shaped opening; 4. Filter mechanism; 5. Fixed plate; 6. Second flange; 7. U-shaped plate; 8. First chamber; 9. Baffle; 10. Rotating mechanism; 11. Valve seat; 12. Second chamber; 13. Flow regulating mechanism; 14. Sealing sleeve; 15. Installation opening; 16. Vibrator; 17. Solenoid valve;

[0030] 401. First stepping motor; 402. Ring plate; 403. Filter screen; 404. Sealing washer; 405. Connecting rod; 406. Sleeve; 407. Transmission shaft;

[0031] 1001. Second stepping motor; 1002. Mounting plate; 1003. Connecting shaft;

[0032] 1301. Buffer spring; 1302. Valve core; 1303. Electromagnet; 1304. Sleeve plate; 1305. Damping seat; 1306. Damping rod; 1307. Connecting rod. Detailed implementation mode

[0033] The following further describes in detail the implementation mode of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0034] Embodiment 1:

[0035] As shown in the attached Figure 1 to the attached Figure 4 figures, the present utility model provides a sewage pipeline anti-blocking regulating valve for municipal construction sites, including:

[0036] A valve body 1, with a first flange 2 fixedly installed at one end of the valve body 1, and a second flange 6 fixedly installed at the other end of the valve body 1. An arc-shaped opening 3 is formed at a position near the middle on the top outer wall of the first flange 2;

[0037] A U-shaped plate 7, which is fixedly installed inside the valve body 1. The opening of the U-shaped plate 7 faces the first flange 2. Baffles 9 are fixedly installed on the upper and lower outer walls at the opening of the U-shaped plate 7. The U-shaped plate 7 and the two baffles 9 divide the internal space of the valve body 1 into a first chamber 8 and a second chamber 12. Installation openings 15 are formed on the upper and lower outer walls of the U-shaped plate 7, and valve seats 11 are fixedly installed inside the two installation openings 15;

[0038] A flow regulating mechanism 13, which is respectively installed on the inner walls of the two valve seats 11, and the adjacent ends of the two flow regulating mechanisms 13 are in contact with each other;

[0039] A rotating mechanism 10, which is respectively installed on the upper and lower outer walls of the valve body 1. The rotating mechanism 10 and the flow regulating mechanism 13 are on the same straight line, and one end of the rotating mechanism 10 is connected to the corresponding flow regulating mechanism 13;

[0040] The filtering mechanism 4, a fixing plate 5 is vertically installed on the outer wall of the top of the valve body 1, the filtering mechanism 4 is installed on one side outer wall of the fixing plate 5, and one side of the filtering mechanism 4 is located inside the arc-shaped opening 3.

[0041] As can be seen from the above, the sewage pipes at both ends are respectively fixed to the flange one 2 and the flange two 6 of the valve body 1, the drainage volume of the valve body 1 is controlled by the flow rate regulating mechanism 13, the sewage enters the inside of the valve body 1 after filtering debris through the flange one 2 and the filtering mechanism 4, and the flow rate regulating mechanism 13 processes the dirt accumulated inside the water outlet while moving, so that the dirt is discharged along with the sewage, avoiding pipeline blockage, and the flow rate regulating mechanism 13 is driven to rotate by the rotating mechanism 10, which is convenient for processing the dirt inside the valve body 1.

[0042] Specifically, the filtering mechanism 4 includes a driving part and a filtering part. The driving part includes a stepping motor one 401, the stepping motor one 401 is installed on one side outer wall of the fixing plate 5, one end of the output shaft of the stepping motor one 401 is fixed with a transmission shaft 407, and one end of the transmission shaft 407 is sleeved with a sleeve 406.

[0043] As can be seen from the above, starting the stepping motor one 401 drives the transmission shaft 407 to rotate, and then drives the sleeve 406 and the filtering part to rotate, which is convenient for replacing the filtering part inside the flange one 2 and ensuring the filtering effect of the device.

[0044] Specifically, the filtering part includes a plurality of connecting rods 405, the connecting rods 405 are equidistantly distributed and installed on the circumferential outer wall of the sleeve 406, one end of the connecting rod 405 is fixedly installed with a sealing gasket 404, an annular plate 402 is fixed on the circumferential inner wall of the sealing gasket 404, a filter net 403 is fixed on the circumferential inner wall of the annular plate 402, the width of the annular plate 402 is the same as the width of the arc-shaped opening 3, and the outer diameter of the annular plate 402 is the same as the inner diameter of the valve body 1.

[0045] As can be seen from the above, the annular plate 402 is clamped inside the arc-shaped opening 3, located at the connection between the flange one 2 and the valve body 1, the inner side of the annular plate 402 is filtered by the filter net 403, and the outer side of the annular plate 402 increases the sealing performance through the sealing gasket 404, ensuring that the sewage is input into the valve body 1 while filtering the dirt.

[0046] Specifically, the rotating mechanism 10 includes a mounting plate 1002, the mounting plate 1002 is fixed on the outer wall of the valve body 1, a stepping motor two 1001 is fixed on the surface of the mounting plate 1002, and one end of the output shaft of the stepping motor two 1001 is fixed with a connecting shaft 1003.

[0047] As can be seen from the above, starting the stepper motor two 1001 drives the flow regulating mechanism 13 through the connecting shaft 1003 to dredge the specific position of the flow regulation, facilitating the flow of sewage and avoiding pipeline blockage.

[0048] Specifically, through holes are opened on the outer walls of the upper and lower sides of the valve body 1 near the mounting plate 1002, and sealing sleeves 14 are fixed on the circumferential inner walls of the through holes. The connecting shaft 1003 is inserted into the circumferential inner wall of the sealing sleeve 14.

[0049] As can be seen from the above, through the setting of the sealing sleeve 14, the sealing effect of the valve body 1 is enhanced.

[0050] Specifically, the flow regulating mechanism 13 includes a damping seat 1305. The damping seat 1305 is fixed at one end of the connecting shaft 1003. One end of the damping seat 1305 is movably inserted with a damping rod 1306. Electromagnets 1303 are fixedly installed at one ends of the two damping rods 1306. The two electromagnets 1303 are in contact with each other. A sleeve plate 1304 is fixedly installed on the circumferential outer wall of the damping seat 1305. One end of the sleeve plate 1304 is provided with a buffer spring 1301. The buffer spring 1301 is wound around the circumferential outer walls of the damping seat 1305 and the damping rod 1306. A valve core 1302 is fixed at one end of the buffer spring 1301. The valve core 1302 is slidably clamped on the circumferential inner wall of the valve seat 11. A plurality of connecting rods 1307 are installed on the outer wall of one side of the electromagnet 1303. One end of the connecting rod 1307 is installed at one end of the valve core 1302.

[0051] As can be seen from the above, when it is necessary to open the valve body 1 to output sewage, the two electromagnets 1303 are energized. After the two electromagnets 1303 are energized, a mutually repulsive force is generated, the buffer spring 1301 is compressed, and then the damping rod 1306 is driven to press into the damping seat 1305, and the valve core 1302 leaves the valve seat 11, so that the inside of the valve seat 11 is opened, facilitating the sewage to be discharged from the chamber one 8 to the chamber two 12 through the upper and lower ports, and then discharged to the pipeline connected to the flange two 6.

[0052] Specifically, an oil chamber one is arranged inside the damping seat 1305. An oil chamber two is arranged near the inside of one end of the damping rod 1306. A piston valve is arranged at one end of the damping rod 1306. The oil chamber one and the oil chamber two are connected through the piston valve. The oil chamber one and the oil chamber two are filled with damping liquid.

[0053] As can be seen from the above, the energy generated by the repulsive force of the electromagnet 1303 during sewage discharge is converted into the elastic potential energy of the compression of the buffer spring 1301, which in turn causes the piston valve inside the damping rod 1306 and the damping seat 1305 to open, and the internal damping liquid to flow. The elastic potential energy is converted into the energy of the internal damping liquid flowing, and the flowing of the damping liquid causes the energy to be converted into heat energy, which is dissipated from the outer walls of the damping rod 1306 and the damping seat 1305. The dissipated heat energy facilitates the softening of the sundries blocked at the valve seat 11 and the valve core 1302, causing them to be discharged along with the sewage.

[0054] During use, the sewage pipes at both ends are respectively fixed to the first flange 2 and the second flange 6 of the valve body 1. The drainage volume of the valve body 1 is controlled by the flow rate regulating mechanism 13. The sewage enters the interior of the valve body 1 after being filtered by the filtering mechanism 4 through the first flange 2. The flow rate regulating mechanism 13 processes the dirt accumulated inside the water outlet while moving, causing the dirt to be discharged along with the sewage, avoiding pipeline blockage. The flow rate regulating mechanism 13 is driven to rotate by the rotating mechanism 10, facilitating the treatment of the dirt inside the valve body 1.

[0055] Embodiment 2:

[0056] Refer to Figure 5 As shown, this embodiment is basically the same as the previous embodiment, except that vibrators 16 are fixed on the outer walls of one side of both baffle plates 9, and a round hole is formed on the outer wall of one side of the U-shaped plate 7, and a solenoid valve 17 is installed on the inner wall of the round hole.

[0057] As can be seen from the above, the vibration of the vibrator 16 facilitates driving the vibration of the baffle plate 9, thereby causing the interior of the second chamber 12 to vibrate, causing the dirt on the surface of the U-shaped plate 7 to shake and be carried away by the sewage. The solenoid valve 17 creates an additional drainage port inside the valve body 1, strengthening the drainage function of the sewage pipe.

[0058] The embodiments of the present utility model are given for the purposes of illustration and description. Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. A sewage pipeline anti-blocking regulating valve for a municipal construction site, characterized in that Comprising: A valve body (1), one end of the valve body (1) is fixedly installed with a first flange (2), the other end of the valve body (1) is fixedly installed with a second flange (6), and an arc-shaped opening (3) is formed in the middle of the outer wall of the top of the first flange (2); A U-shaped plate (7), the U-shaped plate (7) is fixedly installed inside the valve body (1), the opening of the U-shaped plate (7) faces the first flange (2), and retaining pieces (9) are fixedly installed on the outer walls of the upper and lower sides of the opening of the U-shaped plate (7). The U-shaped plate (7) and the two retaining pieces (9) divide the internal space of the valve body (1) into a first chamber (8) and a second chamber (12). Installation openings (15) are formed on the outer walls of the upper and lower sides of the U-shaped plate (7), and valve seats (11) are fixedly installed inside the two installation openings (15); A flow rate regulating mechanism (13), the two flow rate regulating mechanisms (13) are respectively installed on the inner walls of the two valve seats (11), and the adjacent ends of the two flow rate regulating mechanisms (13) are in contact with each other; A rotating mechanism (10), the two rotating mechanisms (10) are respectively installed on the outer walls of the upper and lower sides of the valve body (1). The rotating mechanism (10) and the flow rate regulating mechanism (13) are on the same straight line, and one end of the rotating mechanism (10) is connected to the corresponding flow rate regulating mechanism (13); A filtering mechanism (4), a fixing plate (5) is vertically installed on the outer wall of the top of the valve body (1), the filtering mechanism (4) is installed on one side outer wall of the fixing plate (5), and one side of the filtering mechanism (4) is located inside the arc-shaped opening (3).

2. The sewage pipeline anti-blocking regulating valve for a municipal construction site according to claim 1, characterized in that: The filtering mechanism (4) includes a driving part and a filtering part. The driving part includes a first stepping motor (401), the first stepping motor (401) is installed on one side outer wall of the fixing plate (5), and one end of the output shaft of the first stepping motor (401) is fixed with a transmission shaft (407), and one end of the transmission shaft (407) is sleeved with a sleeve (406).

3. The anti-blocking regulating valve for sewage pipelines in municipal construction sites according to claim 2, characterized in that: The filtering part includes a plurality of connecting rods (405), the connecting rods (405) are equidistantly distributed on the circumferential outer wall of the sleeve (406), one end of the connecting rod (405) is fixedly installed with a sealing washer (404), an annular plate (402) is fixed on the circumferential inner wall of the sealing washer (404), and a filter screen (403) is fixed on the circumferential inner wall of the annular plate (402). The width of the annular plate (402) is the same as the width of the arc-shaped opening (3), and the outer diameter of the annular plate (402) is the same as the inner diameter of the valve body (1).

4. A sewage pipeline anti-blocking regulating valve for a municipal construction site according to claim 1, characterized in that: The rotating mechanism (10) includes a mounting plate (1002), the mounting plate (1002) is fixed on the outer wall of the valve body (1), a second stepping motor (1001) is fixed on the surface of the mounting plate (1002), and one end of the output shaft of the second stepping motor (1001) is fixed with a connecting shaft (1003).

5. The sewage pipeline anti-blocking regulating valve for a municipal construction site according to claim 4, characterized in that: Through holes are formed in the outer walls on both the upper and lower sides of the valve body (1) near the mounting plate (1002), and sealing sleeves (14) are fixed on the circumferential inner walls of the through holes. The connecting shaft (1003) is inserted into the circumferential inner wall of the sealing sleeve (14).

6. The sewage pipeline anti-blocking regulating valve for a municipal construction site according to claim 4, characterized in that: The flow regulating mechanism (13) includes a damping seat (1305). The damping seat (1305) is fixed to one end of the connecting shaft (1003). One end of the damping seat (1305) is movably inserted with a damping rod (1306). Electromagnets (1303) are fixedly installed at one ends of the two damping rods (1306). The two electromagnets (1303) are in contact with each other. A sleeve plate (1304) is fixedly installed on the circumferential outer wall of the damping seat (1305). One end of the sleeve plate (1304) is provided with a buffer spring (1301). The buffer spring (1301) is wound around the circumferential outer walls of the damping seat (1305) and the damping rod (1306). One end of the buffer spring (1301) is fixed with a valve core (1302). The valve core (1302) is slidably clamped on the circumferential inner wall of the valve seat (11). A plurality of connecting rods (1307) are installed on the outer wall of one side of the electromagnet (1303). One end of the connecting rod (1307) is installed at one end of the valve core (1302).

7. The sewage pipeline anti-blocking regulating valve for a municipal construction site according to claim 6, characterized in that: An oil chamber one is arranged inside the damping seat (1305). An oil chamber two is arranged inside the damping rod (1306) near one end of the damping seat (1305). A piston valve is arranged at one end of the damping rod (1306). The oil chamber one and the oil chamber two are communicated through the piston valve. The oil chamber one and the oil chamber two are filled with damping liquid.

8. The sewage pipeline anti-blocking regulating valve for a municipal construction site according to claim 1, characterized in that: Vibrators (16) are fixed on the outer walls of one side of the two baffles (9). A round hole is formed in the outer wall of one side of the U-shaped plate (7). An electromagnetic valve (17) is installed on the inner wall of the round hole.

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