Anti-blocking pneumatic control valve

Abstract

The utility model discloses an anti-blocking pneumatic control valve which comprises a valve body, the valve body is installed on external equipment, a replacement mechanism is arranged on the valve body, the replacement mechanism comprises a middle sleeve, a collecting tank, a filtering layer, an attaching disc, a rubber strip, an ejector rod, an embedded pipe, a leakage-proof mechanism and a control mechanism, the middle sleeve is installed in the valve body, and the collecting tank is installed in the middle sleeve. Meanwhile, the filter layer can effectively intercept silt and impurities and prevent the silt and the impurities from entering the valve body, tight attachment of the collecting tank after installation is guaranteed through the design of the attachment disc and the rubber strip, so that the leakage problem is avoided, in addition, stable transition can be kept during replacement operation of the attachment disc through the design of the ejector rod, and the service life of the collecting tank is prolonged. In conclusion, the replacement mechanism not only improves the filtering effect of impurities in the valve body, but also greatly reduces the maintenance difficulty and improves the operability of equipment by optimizing cooperation of parts.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic regulating valves, and more particularly to an anti-clogging pneumatic regulating valve. Background Art

[0002] In the existing technology, traditional pneumatic control valves have deficiencies in cleaning and maintenance during use, especially impurities are easily accumulated at the opening and closing ports. Since the opening and closing ports are important channel parts of the pneumatic control valves, the fluid inevitably carries a certain amount of impurities or particulate matter when passing through. These impurities will gradually settle near the opening and closing ports. If there is no reasonably designed cleaning function, long-term operation will lead to impurities accumulation that are difficult to clean, resulting in reduced patency or even blockage of the opening and closing ports. This blockage problem not only increases the frequency of equipment maintenance, but may also cause the valve to fail to work normally at critical moments, seriously affecting the efficiency of equipment use.

[0003] In addition, the blockage caused by impurity accumulation will also have a negative impact on the service life of the pneumatic control valve. The blockage will cause the valve to bear greater mechanical loads and fluid pressure during operation, increase the resistance of the switching action, and cause the valve to wear more severely. Especially in some application scenarios with high requirements for fluid flow and pressure accuracy, the blockage problem may also directly affect the operating stability of the system and cause unnecessary economic losses. Utility Model Content

[0004] (1) Technical problems solved

[0005] In view of the problems existing in the prior art, the utility model provides an anti-clogging pneumatic regulating valve to solve the technical problems mentioned in the background technology.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-clogging pneumatic regulating valve, comprising a valve body, which is installed on an external device, and a replacement mechanism is provided on the valve body, and the replacement mechanism includes an intermediate sleeve, a collecting tank, a filter layer, a fitting disk, a rubber strip, a push rod, an embedded tube, a leak-proof mechanism and a control mechanism, wherein the intermediate sleeve is installed in the valve body, and a collecting tank is slidably installed in the intermediate sleeve, the upper end surface of the collecting tank is installed with a filter layer, the lower end surface of the collecting tank is installed with a fitting disk, a rubber strip is coaxially installed on the fitting disk, the fitting disk is in contact with the lower end surface of the intermediate sleeve, the rubber strip is pressed on the intermediate disk, the embedded tube is slidably connected in the valve body, a plurality of push rods are equidistantly installed on the embedded tube, and the plurality of push rods respectively in contact with the fitting disk, the leak-proof mechanism and the control mechanism are installed on the valve body, and an inlet pipe and an outlet pipe are respectively provided at both ends of the valve body.

[0008] The utility model is further configured such that the leakage-proof mechanism includes an annular strip and a sealing disk. A plurality of the annular strips are provided, and the plurality of the annular strips are respectively coaxially arranged on the sealing disk. The sealing disk is affixed to the lower end surface of the valve body, and the annular strip is inserted into the valve body. The design of the leakage-proof mechanism ensures the safety of leakage prevention.

[0009] The present invention is further configured such that a plurality of fixing bolts are provided on the sealing disk, and the plurality of fixing bolts are respectively threadedly connected to the valve body.

[0010] The utility model is further configured such that a compression sleeve is fitted on the valve body, and two intermediate rods are provided on the upper end surface of the compression sleeve. The design of the compression sleeve ensures a sealing effect.

[0011] The present invention is further configured such that the control mechanism comprises a one-way sleeve, the one-way sleeve is slidably connected to the middle disk, and the one-way sleeve abuts against the filter layer.

[0012] The utility model is further configured as follows: a pneumatic sleeve is provided on the two intermediate rods, a push rod is slidably provided in the pneumatic sleeve, and the push rod passes through the press sleeve and the valve body and is connected to the one-way sleeve.

[0013] The utility model is further configured as follows: an inner sleeve is slidably provided in the pneumatic sleeve, the push rod is connected to the inner sleeve, and a spring is provided on the pneumatic sleeve, and the spring presses on the inner sleeve.

[0014] The utility model is further configured such that an air inlet pipe is provided on the lower end surface of the pneumatic sleeve, and the air inlet pipe is connected to external equipment.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the present invention provides an anti-clogging pneumatic regulating valve with the following beneficial effects:

[0017] 1. The design of the replacement mechanism simplifies the replacement operation of the collection tank, while ensuring the sealing and cleaning performance inside the valve body. The mechanism is mainly realized through the cooperation of the intermediate sleeve, collection tank, filter layer, fitting disc, rubber strip and push rod. When the collection tank needs to be replaced, the old collection tank can be removed by sliding the intermediate sleeve. At the same time, the filter layer can effectively intercept mud and impurities to prevent them from entering the valve body. The design of the fitting disc and the rubber strip ensures the tight fit of the collection tank after installation, thereby avoiding leakage problems. In addition, the design of the push rod enables the fitting disc to maintain a smooth transition during the replacement operation, effectively improving the operational convenience and sealing performance. In summary, the replacement mechanism not only improves the filtering effect of impurities in the valve body by optimizing the collaboration of components, but also greatly reduces the difficulty of maintenance and improves the operability of the equipment.

[0018] 2. The leak-proof mechanism effectively prevents water leakage or air leakage that may occur in the valve body during operation, and further ensures the sealing and stability of the equipment. The mechanism achieves a sealing effect through components such as an annular strip, a sealing disc, fixing bolts and a pressing sleeve. The combination of the annular strip and the sealing disc ensures a tight fit at the valve body interface, avoiding liquid or gas leakage from the inside of the valve body. The design of the fixing bolt enables the sealing disc to be firmly installed on the valve body, further enhancing the sealing performance and increasing the stability of the overall structure of the device. In addition, the role of the pressing sleeve not only further enhances the sealing, but also ensures that the leak-proof mechanism is not easily failed due to vibration or wear during long-term use. In summary, the overall design of the leak-proof mechanism realizes an efficient sealing function, effectively extends the service life of the equipment, and ensures its safety and reliability during operation.

[0019] 3. The control mechanism mainly realizes the precise control of the sealing state between the one-way sleeve and the intermediate sleeve by regulating and transmitting the air pressure, thereby greatly improving the intelligence and safety of the equipment operation. The mechanism includes the coordinated work of the one-way sleeve, pneumatic sleeve, push rod, internal sleeve, spring and intake pipe. When the equipment is in normal state, the force of the spring ensures that the one-way sleeve and the intermediate sleeve are always in a normally closed state to avoid liquid or gas leakage. When the seal needs to be unsealed, the control mechanism introduces compressed air through the intake pipe to push the pneumatic sleeve upward, thereby driving the push rod to realize the unsealing operation of the one-way sleeve. This design can not only accurately realize the rapid switching of the sealing state, but also reduce the necessity of manual intervention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of an anti-clogging pneumatic control valve in the utility model;

[0021] Figure 2 For this utility model Figure 1 Schematic diagram of the cross-sectional structure;

[0022] Figure 3 This is a schematic structural diagram of the collecting tank and the sealing disk in the present invention;

[0023] Figure 4 This is a schematic structural diagram of the collection tank in the present utility model;

[0024] Figure 5 It is a structural schematic diagram of the middle sleeve and the one-way sleeve in the utility model.

[0025] In the figure: 1. Valve body; 2. Intermediate sleeve; 3. Collecting tank; 4. Filter layer; 5. Fitting disc; 6. Rubber strip; 7. Push rod; 8. Embedded tube; 9. Water inlet pipe; 10. Water outlet pipe; 11. Ring strip; 12. Sealing disc; 13. Fixing bolt; 14. Press sleeve; 15. Intermediate rod; 16. One-way sleeve; 17. Pneumatic sleeve; 18. Push rod; 19. Inner sleeve; 20. Spring; 21. Inlet pipe. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0028] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually relative to the directions shown in the drawings, or relative to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually relative to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned direction words are not used to limit the present invention.

[0029] See also Figure 1-5A pneumatic control valve with anti-clogging function includes a valve body 1, which is installed on an external device. The valve body 1 is provided with a replacement mechanism, which includes an intermediate sleeve 2, a collection tank 3, a filter layer 4, a fitting disk 5, a rubber strip 6, a push rod 7, an embedded tube 8, a leak-proof mechanism and a control mechanism. The intermediate sleeve 2 is installed in the valve body 1, and the collection tank 3 is slidably installed in the intermediate sleeve 2. The upper end surface of the collection tank 3 is installed with a filter layer 4, and the lower end surface of the collection tank 3 is installed with a fitting disk 5. A rubber strip 6 is coaxially mounted on the fitting disc 5, the fitting disc 5 abuts against the lower end surface of the intermediate sleeve 2, the rubber strip 6 is pressed on the intermediate disc, the embedded tube 8 is slidably connected to the valve body 1, and multiple push rods 7 are equidistantly mounted on the embedded tube 8, and the multiple push rods 7 are respectively abutted against the fitting disc 5. The leak-proof mechanism and the control mechanism are mounted on the valve body 1, and the two ends of the valve body 1 are respectively provided with an inlet pipe 9 and an outlet pipe 10. The leak-proof mechanism includes an annular strip 11 and a sealing disc 12. The annular strip 11 is provided with Multiple, and multiple annular strips 11 are respectively on the coaxial sealing disc 12, the sealing disc 12 is fitted on the lower end surface of the valve body 1, the annular strip 11 is inserted into the valve body 1, and the sealing disc 12 is provided with multiple fixing bolts 13, and the multiple fixing bolts 13 are respectively threadedly connected in the valve body 1, and the valve body 1 is fitted with a pressing sleeve 14, and two intermediate rods 15 are provided on the upper end surface of the pressing sleeve 14. The control mechanism includes a one-way sleeve 16, which is slidably connected to the intermediate disc, and the one-way sleeve 16 abuts against the filter layer 4, a pneumatic sleeve 17 is provided on the two intermediate rods 15, a push rod 18 is provided for sliding inside the pneumatic sleeve 17, the push rod 18 passes through the pressure sleeve 14 and the valve body 1 and is connected to the one-way sleeve 16, an internal sleeve 19 is provided for sliding inside the pneumatic sleeve 17, the push rod 18 is connected to the internal sleeve 19, a spring 20 is provided on the pneumatic sleeve 17, the spring 20 is pressed on the internal sleeve 19, and an air inlet pipe 21 is provided on the lower end surface of the pneumatic sleeve 17, and the air inlet pipe 21 is connected to the external equipment.

[0030] In this embodiment, when it is necessary to release the seal of the valve body 1, first move the one-way sleeve 16 upward, and then release the seal between the one-way sleeve 16 and the intermediate sleeve 2. At this time, the water flowing into the water inlet pipe 9 first flows through the collection tank 3 into the filter layer 4, and then intercepts the sediment through the filter layer 4, and then flows into the outlet pipe 10 through the valve body 1, thereby completing the process of the outlet pipe 10. When the collection tank 3 needs to be replaced for a long time, the old collection tank 3 is taken out and placed in a new collection tank 3, and then the fitting plate 5 is fitted on the intermediate sleeve 2, and the top rod 7 is used to push on the fitting plate 5, and then the sealing plate 12 is pressed on the valve body 1, and the fixing bolt 13 is threadedly connected to the valve body 1, thereby completing the fixing process.

[0031] More specifically, when there is no ventilation, multiple springs 20 ensure that the one-way sleeve 16 and the intermediate sleeve 2 are in a normally closed state. When the connection of the valve body 1 needs to be released, corresponding compressed air is introduced through the air inlet pipe 21 to drive the sealing sleeve to move upward, thereby releasing the seal of the valve body 1.

[0032] In summary, when the overall equipment is in use or running: when it is necessary to release the seal of the valve body 1, first move the one-way sleeve 16 upward, and then release the seal between the one-way sleeve 16 and the intermediate sleeve 2. At this time, the water flowing into the water inlet pipe 9 first flows through the collection tank 3 into the filter layer 4, and then intercepts the sediment through the filter layer 4, and then flows into the outlet pipe 10 through the valve body 1, thereby completing the process of the outlet pipe 10. When the collection tank 3 needs to be replaced for a long time, the old collection tank 3 is taken out and put into the new collection tank 3, and then the fitting plate 5 is fitted on the intermediate sleeve 2, and the push rod 7 is used to press the fitting plate 5, and then the sealing plate 12 is pressed on the valve body 1, and the fixing bolt 13 is threadedly connected to the valve body 1, thereby completing the fixing process. When there is no ventilation, multiple springs 20 ensure that the one-way sleeve 16 and the intermediate sleeve 2 are in a normally closed state. When it is necessary to release the connection of the valve body 1, the corresponding compressed air is introduced through the air inlet pipe 21 to drive the sealing sleeve to move upward, thereby releasing the seal of the valve body 1.

[0033] In all the schemes mentioned above, the connection between the two components can be selected according to actual conditions by welding, bolt and nut connection, bolt or screw connection or other well-known connection methods, which will not be listed here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. An anti-clogging pneumatic regulating valve, comprising a valve body (1), characterized in that: The valve body (1) is installed on an external device. A replacement mechanism is provided on the valve body (1). The replacement mechanism includes an intermediate sleeve (2), a collection tank (3), a filter layer (4), a bonding disk (5), a rubber strip (6), a push rod (7), an embedded tube (8), a leak-proof mechanism and a control mechanism. The intermediate sleeve (2) is installed in the valve body (1). The collection tank (3) is slidably installed in the intermediate sleeve (2). The upper end surface of the collection tank (3) is installed with a filter layer (4). The lower end surface of the collection tank (3) is installed with a bonding disk (5). The valve body (1) is provided with a valve disc (5), a rubber strip (6) is coaxially mounted on the valve disc (5), the valve disc (5) contacts the lower end surface of the intermediate sleeve (2), the rubber strip (6) is pressed on the intermediate disc, an embedded tube (8) is slidably connected to the valve body (1), a plurality of push rods (7) are equidistantly mounted on the embedded tube (8), the plurality of push rods (7) respectively contact the valve disc (5), the anti-leakage mechanism and the control mechanism are mounted on the valve body (1), and a water inlet pipe (9) and a water outlet pipe (10) are respectively provided at both ends of the valve body (1).

2. The anti-clogging pneumatic control valve according to claim 1, characterized in that: The anti-leakage mechanism comprises an annular strip (11) and a sealing disk (12), wherein a plurality of the annular strips (11) are provided, and the plurality of the annular strips (11) are respectively coaxially arranged on the sealing disk (12), the sealing disk (12) is attached to the lower end surface of the valve body (1), and the annular strips (11) are inserted into the valve body (1).

3. The anti-clogging pneumatic control valve according to claim 2, characterized in that: The sealing disk (12) is provided with a plurality of fixing bolts (13), and the plurality of fixing bolts (13) are respectively threadedly connected in the valve body (1).

4. The anti-clogging pneumatic regulating valve according to claim 3, characterized in that: A pressing sleeve (14) is fitted on the valve body (1), and two intermediate rods (15) are provided on the upper end surface of the pressing sleeve (14).

5. The anti-clogging pneumatic regulating valve according to claim 4, characterized in that: The control mechanism comprises a one-way sleeve (16), the one-way sleeve (16) is slidably connected to the middle disk, and the one-way sleeve (16) abuts against the filter layer (4).

6. The anti-clogging pneumatic regulating valve according to claim 5, characterized in that: A pneumatic sleeve (17) is provided on the two intermediate rods (15), a push rod (18) is slidably provided in the pneumatic sleeve (17), and the push rod (18) passes through the pressing sleeve (14) and the valve body (1) and is connected to the one-way sleeve (16).

7. The anti-clogging pneumatic regulating valve according to claim 6, characterized in that: An inner sleeve (19) is slidably provided in the pneumatic sleeve (17), a push rod (18) is connected to the inner sleeve (19), and a spring (20) is provided on the pneumatic sleeve (17), and the spring (20) presses on the inner sleeve (19).

8. The anti-clogging pneumatic regulating valve according to claim 7, characterized in that: An air inlet pipe (21) is provided on the lower end surface of the pneumatic sleeve (17), and the air inlet pipe (21) is connected to external equipment.

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