Corrugated pipe regulating valve with anti-blocking function

Abstract

The utility model provides a corrugated pipe regulating valve with an anti-blocking function, which comprises a regulating valve main body, a reset spring, a movable rod, a rubber base, a threaded slip ring, a smashing rod, a cleaning plate and an external thread, the left end surface of the regulating valve main body is connected with a liquid inlet pipeline, and the right end surface of the regulating valve main body is connected with a liquid outlet pipeline; a support is fixed to the upper end face of the connecting flange. A pneumatic actuator is installed on the upper end face of the support. A valve rod is installed at the output end of the pneumatic actuator. A movable rod is movably connected into the valve rod. A reset spring is fixed into the valve rod. According to the design, the threaded sliding ring is driven to rotate in the vertical movement process of the valve rod, so that the cleaning plate and the smashing rod can ascend and rotate, external power equipment is not needed, the structure is simple, cost is low, and replacement is easy after damage.

Description

Technical Field

[0001] The utility model relates to a bellows regulating valve with an anti-clogging function, belonging to the technical field of regulating valves. Background Art

[0002] Bellows regulating valve is a pressure-balanced regulating valve used to regulate the flow of media such as gas and liquid. In a bellows regulating valve, the bellows is usually placed on the valve stem, the top of the bellows is fixedly connected to the valve cover, and the bottom of the bellows is fixedly connected to the valve core to avoid the medium in the valve body from leaking out from the gap between the valve stem and the valve cover. In situations where the medium is chemically active or toxic and harmful gas, volatile liquid, etc., a metal bellows regulating valve must be used to prevent the medium from diffusing and causing production accidents.

[0003] After searching China Patent No.: CN116066627A, a bellows regulating valve with anti-clogging function is found. This design scheme installs a stirring rod at the bottom center position of the valve core. During the conduction process of the regulating valve, the flow sensor performs real-time detection of the liquid flow data. When the error value exceeds the preset value, it indicates that the regulating valve body is blocked or the pipe connection is disconnected. The remote transmission processor transmits the wireless signal to the pneumatic actuator. The pneumatic actuator drives the stirring rod to rotate, so that the anti-clogging stirring blade rotates to perform vortex dredging at the blockage. The cleaning scraper scrapes off the medium sediment attached to the inner wall of the regulating valve body. The quick dredging of the blockage ensures the good conduction effect of the regulating valve body. However, this design scheme requires the pneumatic actuator to drive the stirring rod to rotate and then scrape off the medium attached to the inside of the regulating valve body. The structure is complex and the cost of use is high. It is not easy to replace after damage. Now there is an urgent need for a bellows regulating valve with anti-clogging function to solve the above problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a bellows regulating valve with anti-clogging function to solve the problems raised in the above-mentioned background technology. The present invention has a reasonable structure. The design drives the threaded slip ring to rotate during the up and down movement of the valve stem, so that the cleaning plate and the crushing rod can rise and rotate. No external power equipment is required, the structure is simple and the cost is low, and it is easy to replace after damage.

[0005] In order to achieve the above-mentioned object, the utility model is realized through the following technical solution: a bellows regulating valve with an anti-clogging function, comprising a regulating valve body, a return spring, a movable rod, a rubber base, a threaded slip ring, a stirring rod, a cleaning plate and an external thread, the left end face of the regulating valve body is connected to a liquid inlet pipe, the right end face of the regulating valve body is connected to a liquid outlet pipe, the upper end face of the regulating valve body is installed with a welding sleeve, the upper end face of the welding sleeve is installed with a connecting flange, the upper end face of the connecting flange is fixed with a bracket, the upper end face of the bracket is installed with a pneumatic actuator, and the output end of the pneumatic actuator is installed with a valve stem;

[0006] A movable rod is movably connected to the interior of the valve stem, a return spring is fixed to the interior of the valve stem, a rubber base is fixed to the lower end face of the movable rod, an external thread is provided on the outer side of the ring surface of the movable rod, a threaded slip ring is fitted on the external thread, cleaning plates are fixed to the left and right end faces of the threaded slip ring, a stirring rod is fixed to the outer side of the ring surface of the threaded slip ring, and a valve core is fixed to the outer side of the ring surface of the valve stem.

[0007] Furthermore, movable holes are provided inside the welding sleeve and the regulating valve body, the inner diameter of the movable hole is equal to the outer diameter of the valve stem, and the two can fit together and be slidably connected.

[0008] Furthermore, a circular hole is opened inside the valve stem, the inner diameter of the circular hole is equal to the outer diameter of the movable rod, and the two can fit together and be slidably connected.

[0009] Furthermore, an internal thread is provided inside the threaded slip ring, the inner diameter of the internal thread is equal to the outer diameter of the external thread, and the two can be fitted and rotatably connected.

[0010] Furthermore, the churning rods are provided in multiple groups, the churning rods are of equal size, and are symmetrically installed in groups of three on the outside of the annular surface of the threaded slip ring.

[0011] Furthermore, the cleaning plate is an arc structure, and the cleaning plate can be slidably connected to the inner wall of the regulating valve body.

[0012] The beneficial effects of the present invention: the present invention is a bellows regulating valve with an anti-clogging function. Since the present invention adds a movable splint, an adjusting bolt, a threaded hole, an anti-slip rubber strip and a bearing seat, the design drives the threaded slip ring to rotate during the up and down movement of the valve stem, so that the cleaning plate and the stirring rod can rise and rotate. No external power equipment is required, the structure is simple and the cost is low, and it is easy to replace after damage. This solves the problem that the original bellows regulating valve with an anti-clogging function needs to use a pneumatic actuator to drive the stirring rod to rotate and then scrape the medium attached to the inside of the regulating valve body, the structure is complex and the cost of use is high, and it is not easy to replace after damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0014] Figure 1 This is a structural diagram of a bellows regulating valve with anti-clogging function in the utility model;

[0015] Figure 2 This is a structural cross-sectional view of a bellows regulating valve with anti-clogging function according to the present invention;

[0016] Figure 3 This is a partial cross-sectional structural diagram of a bellows regulating valve with anti-clogging function according to the present invention;

[0017] Figure 4 This is a partial structural diagram of a bellows regulating valve with anti-clogging function according to the present invention;

[0018] In the figure: 1-pneumatic actuator, 2-bracket, 3-valve stem, 4-connecting flange, 5-welding sleeve, 6-regulating valve body, 7-liquid inlet pipe, 8-liquid outlet pipe, 9-reset spring, 10-valve core, 11-movable rod, 12-rubber base, 13-threaded slip ring, 14-mash rod, 15-cleaning plate, 16-external thread. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] See also Figure 1-Figure 4 The utility model provides a technical solution: a bellows regulating valve with an anti-clogging function, comprising a regulating valve body 6, a return spring 9, a movable rod 11, a rubber base 12, a threaded slip ring 13, a stirring rod 14, a cleaning plate 15, and an external thread 16. The left end face of the regulating valve body 6 is connected to a liquid inlet pipe 7, and the right end face of the regulating valve body 6 is connected to a liquid outlet pipe 8. A welding sleeve 5 is installed on the upper end face of the regulating valve body 6, and a connecting flange 4 is installed on the upper end face of the welding sleeve 5. A bracket 2 is fixed on the upper end face of the connecting flange 4, and a pneumatic actuator 1 is installed on the upper end face of the bracket 2. The output end of the pneumatic actuator 1 is installed with a valve stem 3.

[0021] A movable rod 11 is movably connected to the valve stem 3, a return spring 9 is fixed inside the valve stem 3, a rubber base 12 is fixed to the lower end face of the movable rod 11, an external thread 16 is provided on the outer side of the ring surface of the movable rod 11, a threaded slip ring 13 is fitted and connected to the external thread 16, cleaning plates 15 are fixed to the left and right end faces of the threaded slip ring 13, a crushing rod 14 is fixed to the outer side of the ring surface of the threaded slip ring 13, and a valve core 10 is fixed to the outer side of the ring surface of the valve stem 3. This design drives the threaded slip ring 13 to rotate during the up and down movement of the valve stem 3, so that the cleaning plate 15 and the crushing rod 14 can rise and rotate. No external power equipment is required, the structure is simple and the cost is low, and it is easy to replace after damage.

[0022] As a first embodiment of the present invention, a movable hole is provided inside the welding sleeve 5 and the regulating valve body 6. The inner diameter of the movable hole is equal to the outer diameter of the valve stem 3, and the two can be fitted and slidably connected. This design can drive the valve stem 3 to move up and down through the pneumatic actuator 1, thereby completing the opening and closing of the regulating valve body 6.

[0023] A circular hole is formed inside the valve stem 3. The inner diameter of the circular hole is equal to the outer diameter of the movable rod 11, and the two can fit and slide together. This design allows the movable rod 11 to move inside the valve stem 3 when the valve stem 3 moves downward to drive the valve core 10 to block the inner wall of the regulating valve body 6.

[0024] An internal thread is provided inside the threaded slip ring 13, and the inner diameter of the internal thread is equal to the outer diameter of the external thread 16, and the two can be fitted and rotatably connected. There are multiple groups of stirring rods 14, and the sizes of the multiple groups of stirring rods 14 are equal. A group of three is symmetrically installed on the outside of the annular surface of the threaded slip ring 13. The cleaning plate 15 is an arc structure, and the cleaning plate 15 can be fitted and slidably connected with the inner wall of the regulating valve body 6. As the movable rod 11 extends into the interior of the valve stem 3, the external thread 16 on the outside of the movable rod 11 is fitted and rotatably connected with the internal thread of the threaded slip ring 13, so that the threaded slip ring 13 can rotate and gradually rise. At this time, the threaded slip ring 13 drives the stirring rod 14 and the cleaning plate 15 to rotate, and the stirring rod 14 stirs the blocked medium, and the cleaning plate 15 fits the inner wall of the regulating valve body 6 to clean the medium attached to it.

[0025] As the second embodiment of the present utility model: the staff can drive the valve stem 3 to move downward through the pneumatic actuator 1. When the valve stem 3 moves downward and drives the valve core 10 to block the inner wall of the regulating valve body 6, the rubber base 12 contacts the lower wall of the regulating valve body 6. At this time, the movable rod 11 moves upward and extends into the interior of the valve stem 3. As the movable rod 11 extends into the interior of the valve stem 3, the external thread 16 on the outside of the movable rod 11 is fitted and connected with the internal thread of the threaded slip ring 13 to rotate, so that the threaded slip ring 13 can rotate and gradually rise. At this time, the threaded slip ring 13 drives the stirring rod 14 and the cleaning plate 15 to rotate. The stirring rod 14 stirs the blocked medium, and the cleaning plate 15 fits the inner wall of the regulating valve body 6 to clean the medium attached to it.

[0026] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and range of equivalents of the claims be included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0027] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A bellows regulating valve with anti-clogging function, comprising a regulating valve body, a return spring, a movable rod, a rubber base, a threaded sliding ring, a stirring rod, a cleaning plate and an external thread, characterized in that: The left end surface of the regulating valve body is connected to a liquid inlet pipeline, the right end surface of the regulating valve body is connected to a liquid outlet pipeline, the upper end surface of the regulating valve body is installed with a welding sleeve, the upper end surface of the welding sleeve is installed with a connecting flange, the upper end surface of the connecting flange is fixed with a bracket, the upper end surface of the bracket is installed with a pneumatic actuator, and the output end of the pneumatic actuator is installed with a valve stem; A movable rod is movably connected inside the valve stem, a return spring is fixed inside the valve stem, a rubber base is fixed to the lower end face of the movable rod, an external thread is provided on the outer side of the ring surface of the movable rod, a threaded slip ring is fittedly connected to the external thread, cleaning plates are fixed to the left and right end faces of the threaded slip ring, a crushing rod is fixed to the outer side of the ring surface of the threaded slip ring, and a valve core is fixed to the outer side of the ring surface of the valve stem.

2. The bellows regulating valve with anti-clogging function according to claim 1, characterized in that: The welding sleeve and the regulating valve body are both provided with movable holes, the inner diameter of the movable hole is equal to the outer diameter of the valve stem, and the two can be fitted and slidably connected.

3. The bellows regulating valve with anti-clogging function according to claim 1, characterized in that: A circular hole is provided inside the valve stem, the inner diameter of the circular hole is equal to the outer diameter of the movable rod, and the two can fit and slide in connection.

4. The bellows regulating valve with anti-clogging function according to claim 1, characterized in that: An internal thread is provided inside the threaded slip ring, the inner diameter of the internal thread is equal to the outer diameter of the external thread, and the two can fit together and be rotatably connected.

5. The bellows regulating valve with anti-clogging function according to claim 1, characterized in that: The stirring rods are provided in multiple groups, the sizes of the stirring rods in the multiple groups are equal, and three in a group are symmetrically installed on the outer side of the annular surface of the threaded slip ring.

6. The bellows regulating valve with anti-clogging function according to claim 1, characterized in that: The cleaning plate is an arc structure, and the cleaning plate can be slidably connected with the inner wall of the regulating valve body.

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