Corrugated pipe sealing regulating valve

Abstract

The corrugated pipe sealing adjusting valve comprises a valve body, valve ports are formed in the outer walls of the two sides of the valve body, the heights of the valve ports are different, a fixing sleeve is arranged at the position, located at the top, of the outer wall of the valve body, a valve rod penetrates out of the position, located in the middle, of the top of a valve cover, and a support is further arranged at the top of the valve cover. The fixing mechanism is arranged at the top of the fixing sleeve, the four clamping groove frames are arranged at the top of the fixing sleeve, the valve cover is rotated to enable the four clamping blocks connected with the outer wall to move into the clamping groove frames, the fixing bolts arranged at the tops of the clamping blocks slide to the middle positions along the sliding grooves, and fixing and limiting are conducted through the nuts; the valve cover and the valve body can be fixed more conveniently, and the problem that the valve cover and the valve body can be fixed only after being aligned with the positioning holes is solved.

Description

Technical Field

[0001] The present application relates to the technical field of regulating valves, and in particular to a bellows sealed regulating valve. Background Art

[0002] The regulating valve, also known as the control valve, is a device that uses power to change the flow of fluid in the process control system. At the same time, the regulating valve is also a control device in the combination instrument, and is an important device in the automatic control system of the production process. It is widely used in chemical, petroleum, metallurgy, electric power, textile and other industries.

[0003] During the installation of the existing bellows regulating valve, the valve cover needs to be aligned with the positioning holes opened on the valve body and then fixed by bolts, which makes the installation inconvenient and causes the workers to spend a lot of time during the installation process. Summary of the invention

[0004] In order to solve the problems raised in the above background technology, the present application provides a bellows sealed regulating valve.

[0005] The present application provides a bellows sealed regulating valve adopting the following technical solution:

[0006] A bellows sealed regulating valve comprises a valve body, wherein the outer walls on both sides of the valve body are provided with valve ports, the heights of the valve ports are different, a fixing sleeve is provided at the top position of the outer wall of the valve body, the top of the fixing sleeve is installed with the valve cover through a fixing mechanism, a valve stem is passed through the middle position of the top of the valve cover, and a bracket is also provided at the top of the valve cover.

[0007] Preferably, the fixing mechanism comprises four slot frames, and the four slot frames are fixedly installed on the top of the fixing sleeve near the edge, and the slot frames are symmetrical to each other, and a slide groove is provided on the top of the slot frame.

[0008] Preferably, a card block is further provided inside the card slot frame, one side of the card block is connected to the outer wall of the valve cover, and the other side of the card block is slidably installed in the card slot frame, and a fixing bolt is also provided at the middle position of the top of the card block.

[0009] Preferably, one end of the fixing bolt is slidably installed in the slide groove and fixed by a nut. The bottom of the valve cover is also provided with an annular groove, which is adapted to be installed between the annular groove and the annular stopper arranged on the top of the valve body.

[0010] Preferably, a threaded rod is also provided at the top of the valve stem, one end of the threaded rod passes through a threaded sleeve provided at the top of the bracket, and passes through a through hole opened at the top of the bracket to be connected to the turning handle, and the other end of the valve stem passes through a through hole opened at the top of the valve cover and is connected to an adjusting component.

[0011] Preferably, the regulating assembly comprises a valve cage, a waterproof spacer is arranged on the top of the valve cage, a sealing ring is installed on the outer wall of the waterproof spacer, a plurality of water flow grooves are opened on the outer wall of the valve cage, and a buffer spring is arranged inside the valve cage.

[0012] Preferably, one end of the valve stem passes through a waterproof spacer provided on the top of the valve cage, and passes through a buffer spring provided inside the valve cage to be connected to one end of the bellows, and a baffle is provided at the bottom of the other end of the bellows.

[0013] Preferably, an adjusting block is provided at the bottom of the baffle, and the adjusting block is adapted to a through hole opened on a valve seat provided inside the valve body.

[0014] In summary, this application includes the following beneficial technical effects:

[0015] The utility model provides a fixing mechanism on the top of the valve body, and by providing four card slot frames on the top of the fixing sleeve, the valve cover is rotated to move the four card blocks connected to the outer wall into the card slot frames, and the fixing bolts provided on the top of the card blocks slide to the middle position along the slide slots provided on the top of the card slot frames, and are fixed by nuts, so that the fixing between the valve cover and the valve body is more convenient, and the problem that the positioning holes need to be aligned before fixing can be solved. The annular card slot provided on the bottom of the valve cover is adapted to be installed with the annular stopper provided on the top of the valve body, so that the sealing between the valve cover and the valve body is improved;

[0016] The utility model provides a valve cage with a water flow groove opened on the outer wall of the valve cage. When an adjusting block arranged at the bottom of the bellows is separated from a through hole opened on the valve seat, water flow suddenly rushes upward due to excessive water pressure. The water flow groove can divert the rushing water flow and play a certain pressure reducing effect. The buffer spring arranged inside the valve cage can prevent the threaded rod from rotating too much and causing extrusion damage between the bellows and the valve cage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a bellows sealed regulating valve in an embodiment of the present application;

[0018] Figure 2 It is a cross-sectional view of the internal structure of a bellows-sealed regulating valve in an embodiment of the present application;

[0019] Figure 3 It is an enlarged view of the structure at A of a bellows-sealed regulating valve in an embodiment of the present application;

[0020] Figure 4 It is a cross-sectional view of the internal structure of a valve cage of a bellows-sealed regulating valve in an embodiment of the present application.

[0021] Explanation of the reference numerals: 1. valve body; 2. valve port; 3. fixing sleeve; 4. valve cover; 5. valve stem; 6. bracket; 7. threaded rod; 8. threaded sleeve; 9. slot frame; 10. slide slot; 11. block; 12. fixing bolt; 13. nut; 14. annular block; 15. valve cage; 16. sealing ring; 17. water flow groove; 18. buffer spring; 19. bellows; 20. baffle; 21. adjusting block; 22. valve seat. DETAILED DESCRIPTION

[0022] The following is combined with Figure 1-4 This application is described in further detail.

[0023] The embodiment of the present application discloses a bellows sealed regulating valve, including a valve body 1. The outer walls on both sides of the valve body 1 are provided with valve ports 2. The heights of the valve ports 2 are different. A fixing sleeve 3 is provided at the top position of the outer wall of the valve body 1. The top of the fixing sleeve 3 is installed with a valve cover 4 through a fixing mechanism. A valve stem 5 is passed through the middle position of the top of the valve cover 4. A bracket 6 is also provided on the top of the valve cover 4.

[0024] refer to Figure 1 , Figure 2 and Figure 3 The fixing mechanism includes four card slot frames 9, which are fixedly installed on the top of the fixing sleeve 3 near the edge. The card slot frames 9 are symmetrical with each other. A slide groove 10 is provided on the top of the card slot frame 9. A card block 11 is also provided inside the card slot frame 9. One side of the card block 11 is connected to the outer wall of the valve cover 4. The other side of the card block 11 is slidably installed in the card slot frame 9. A fixing bolt 12 is also provided at the top of the card block 11 at the middle position. One end of the fixing bolt 12 is slidably installed in the slide groove 10 and is fixed and limited by a nut 13. The bottom of the valve cover 4 is also provided with an annular card slot, which is connected to the valve body 1 The annular stopper 14 set on the top is adapted to be installed. More specifically, four blocks 11 are set on the outer wall of the valve cover 4, and the valve cover 4 is rotated to move the four blocks 11 to the inside of the four card slot frames 9 set on the top of the fixing sleeve 3. The fixing bolts 12 set on the top of the blocks 11 slide along the slide grooves 10 opened on the top of the card slot frames 9 to the positions between them, and then fixed and limited by nuts 13, so that the fixation between the valve cover 4 and the valve body 1 is more convenient, and the annular card groove opened at the bottom of the valve cover 4 is adapted to be installed with the annular stopper 14 set on the top of the valve body 1, thereby improving the sealing between the valve cover 4 and the valve body 1.

[0025] refer to Figure 3 and Figure 4A threaded rod 7 is also provided at the top of the valve stem 5. One end of the threaded rod 7 passes through a threaded sleeve 8 provided at the top of the bracket 6, and passes through a through hole opened at the top of the bracket 6 to be connected to the turning handle. The other end of the valve stem 5 passes through a through hole opened at the top of the valve cover 4, and is connected to an adjusting component. The adjusting component includes a valve cage 15. A waterproof spacer is provided at the top of the valve cage 15. A sealing ring 16 is sleeved and installed on the outer wall of the waterproof spacer. A plurality of water flow grooves 17 are also provided on the outer wall of the valve cage 15. A buffer spring 18 is also provided inside the valve cage 15. One end of the valve stem 5 passes through the waterproof spacer provided at the top of the valve cage 15, and passes through the buffer spring 18 provided inside the valve cage 15 to be connected to one end of the bellows 19. The bellows 19 is connected, a baffle 20 is provided at the bottom of the other end, and an adjusting block 21 is provided at the bottom of the baffle 20. The adjusting block 21 is adapted to the through hole provided on the valve seat 22 provided inside the valve body 1. To be more specific, the valve stem 5 connected at one end is driven to move up and down by rotating the threaded rod 7, and the bellows 19 connected to the bottom of the valve stem 5 drives the adjusting block 21 to move up and down through the baffle 20 provided at the bottom, thereby adjusting the water flow speed in the through hole provided on the valve seat 22. The valve cage 15 fitted on the outer wall of the valve stem 5 is provided with a water flow groove 17, and the water flow groove 17 can divert the water flow that rushes up when the adjusting block 21 separates from the through hole, thereby reducing the pressure to a certain extent.

[0026] The implementation principle of a bellows sealed regulating valve in the embodiment of the present application is as follows: when in use, the annular groove provided at the bottom of the valve cover 4 is engaged with the annular stopper 14 provided at the top of the valve body 1, and the valve cover 4 is rotated to make the four blocks 11 provided on the outer wall rotate into the four groove frames 9 provided on the fixing sleeve 3, and the fixing bolts 12 provided on the top of the blocks 11 slide along the card slide groove 10 to the middle position, and the valve cover 4 is fixed and limited by the nuts 13, and then the valve ports 2 provided on both sides of the valve body 1 are connected to the water inlet pipe and the water outlet pipe, and the threaded rod 7 is rotated to make the valve stem 5 drive the bellows 19 to move up and down, and the regulating block 21 provided at the bottom of the bellows 19 moves up and down to adjust the water flow speed in the through hole on the valve seat 22, and the water flow groove 17 provided on the outer wall of the valve cage 15 can divert the water flow that is instantly rushed out when the regulating block 21 is separated from the through hole provided on the valve seat 22, so as to reduce the pressure to a certain extent.

[0027] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A bellows sealed regulating valve, comprising a valve body (1), both sides of the outer wall of the valve body (1) being provided with valve ports (2), the valve ports (2) being at different heights, and a fixing sleeve (3) being provided at the top of the outer wall of the valve body (1), characterized in that: The top of the fixing sleeve (3) is mounted on the valve cover (4) via a fixing mechanism, a valve stem (5) is inserted through the middle of the top of the valve cover (4), and a bracket (6) is also provided on the top of the valve cover (4).

2. The bellows sealed regulating valve according to claim 1, characterized in that: The fixing mechanism comprises four slot frames (9), the four slot frames (9) being fixedly mounted on the top of the fixing sleeve (3) near the edge, the slot frames (9) being symmetrical to each other, and the tops of the slot frames (9) being provided with sliding grooves (10).

3. A bellows sealed regulating valve according to claim 2, characterized in that: A clamping block (11) is also provided inside the clamping slot frame (9); one side of the clamping block (11) is connected to the outer wall of the valve cover (4); the other side of the clamping block (11) is slidably mounted inside the clamping slot frame (9); and a fixing bolt (12) is also provided at the middle position of the top of the clamping block (11).

4. The bellows sealed regulating valve according to claim 3, characterized in that: One end of the fixing bolt (12) is slidably mounted in the slide groove (10) and is fixed in position by a nut (13). An annular groove is also provided at the bottom of the valve cover (4), and the annular groove is adapted to be mounted between an annular stopper (14) provided at the top of the valve body (1).

5. The bellows sealed regulating valve according to claim 1, characterized in that: A threaded rod (7) is also provided at the top of the valve stem (5), one end of the threaded rod (7) passes through a threaded sleeve (8) provided at the top of the bracket (6), and passes through a through hole opened at the top of the bracket (6) to be connected to the handle, and the other end of the valve stem (5) passes through a through hole opened at the top of the valve cover (4), and is connected to an adjustment component.

6. The bellows sealed regulating valve according to claim 5, characterized in that: The regulating assembly comprises a valve cage (15), a waterproof spacer is arranged on the top of the valve cage (15), a sealing ring (16) is sleeved and mounted on the outer wall of the waterproof spacer, a plurality of water flow grooves (17) are also formed on the outer wall of the valve cage (15), and a buffer spring (18) is also arranged inside the valve cage (15).

7. The bellows sealed regulating valve according to claim 5, characterized in that: One end of the valve stem (5) passes through a waterproof spacer provided at the top of the valve cage (15), and passes through a buffer spring (18) provided inside the valve cage (15) to be connected to one end of a bellows (19), and a baffle (20) is provided at the bottom of the other end of the bellows (19).

8. The bellows sealed regulating valve according to claim 7, characterized in that: An adjusting block (21) is provided at the bottom of the baffle (20), and the adjusting block (21) is adapted to fit a through hole opened on a valve seat (22) provided inside the valve body (1).

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