CN218031421U

CN218031421U - Low-leakage packing seal type regulating valve

Info

Publication number: CN218031421U
Application number: CN202221058867.9U
Authority: CN
Inventors: 汤恒
Original assignee: Hangzhou Fuyang Fu Heng Instrument Valve Co ltd
Current assignee: Hangzhou Fuyang Fu Heng Instrument Valve Co ltd
Priority date: 2022-05-06
Filing date: 2022-05-06
Publication date: 2022-12-13
Anticipated expiration: 2032-05-06

Abstract

The utility model discloses a low canned type governing valve that leaks packs, including backup pad and seal assembly, the lower extreme left and right sides of backup pad all is provided with clamping assembly, and clamping assembly includes pivot, two-way lead screw and adapter sleeve, the inside of pivot is provided with two-way lead screw, and the upper and lower both ends of two-way lead screw all are provided with the adapter sleeve, seal assembly sets up in the lower extreme middle part of backup pad, the upper end middle part of connecting plate is provided with the filler storehouse, and the inside upper end in filler storehouse is provided with the shutoff head. This low canned type governing valve that leaks packs compares with current canned type governing valve, and the adapter sleeve through two-way lead screw both ends is close to each other and extrudees fixedly to the shutoff head, avoids packing to leak and influences the liquid flow effect, through the slip regulating block, drives the accuse valve pole and goes up and down, and control process is more simple and convenient, improves switching efficiency, can cushion the liquid of impact through the buffer board, avoids the impact force to support the valve body and rocks, influences the liquid flow effect.

Description

Low-leakage packing seal type regulating valve

Technical Field

The utility model relates to a governing valve technical field specifically is low leakage filler canned type governing valve.

Background

The regulating valve is used as an important component of an automatic control system and widely applied to many fields such as chemical engineering, petroleum and the like, and in the application, the regulating valve mainly plays a role in regulating parameters such as flow, pressure and the like of media, wherein the media comprise fluids such as liquid, gas-liquid two-phase flow and the like.

In the prior publication No. CN210153240U, named as a leakage-proof regulating valve, in the using process, the filling in a filling bin is not extruded and contracted, so that the leakage of the filling is caused, the using sealing performance of a valve is influenced, and the liquid is overflowed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a low canned type governing valve that leaks to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: low sealed type governing valve that packs that leaks, including backup pad and seal assembly, the lower extreme left and right sides of backup pad all is provided with clamping assembly, and clamping assembly includes pivot, two-way lead screw and adapter sleeve, the inside of pivot is provided with two-way lead screw, and the upper and lower both ends of two-way lead screw all are provided with the adapter sleeve, seal assembly sets up in the lower extreme middle part of backup pad, and seal assembly includes connecting plate, filler storehouse and shutoff head, the upper end middle part of connecting plate is provided with the filler storehouse, and the inside upper end in filler storehouse is provided with the shutoff head.

Furthermore, the upper end of backup pad is provided with the slip subassembly, and the slip subassembly includes sliding plate, spout and limiting plate, the spout has been seted up to the inside of sliding plate, and the upper end right side of sliding plate is provided with the limiting plate.

Furthermore, the left side of the upper end of the sliding plate is connected with an adjusting assembly, the adjusting assembly comprises an adjusting block and an extrusion groove, and the extrusion groove is formed in the front wall of the adjusting block.

Furthermore, a lifting assembly penetrates through the inside of the supporting plate and comprises a first control valve rod and a first spring, the first spring is arranged at the upper end of the outside of the first control valve rod, and a water flow plug is arranged at the lower end of the outside of the first control valve rod.

Furthermore, the lower extreme of connecting plate is provided with the valve body, and the inside middle part of valve body is provided with and separates the piece.

Furthermore, the right side of the lower end of the partition block is provided with a buffer assembly, the buffer assembly comprises a second spring and a buffer plate, and the left end of the second spring is connected with the buffer plate.

Furthermore, the lower wall of the valve body is provided with a clamping assembly, the clamping assembly comprises a clamping block and a rubber block, and the rubber block is arranged inside the clamping block.

Furthermore, the sliding plate is in sliding connection with the adjusting block, and the adjusting block is in sliding connection with the control valve rod.

Compared with the prior art, the beneficial effects of the utility model are that: the connecting sleeves at the two ends of the bidirectional screw rod are close to each other to extrude and fix the plugging head, so that the influence of filler leakage on the liquid flowing effect is avoided, the control valve rod is driven to lift through the sliding adjusting block, the control process is simple and convenient, the switching efficiency is improved, the impact liquid can be buffered through the buffer plate, and the influence of the impact force on the shaking of the supporting valve body on the liquid flowing effect is avoided;

1. the utility model discloses a setting of sliding plate, spout, regulating block, extrusion groove, accuse valve rod and spring one, operating personnel lets the regulating block slide on the spout in the sliding plate through promoting the regulating block, the removal of regulating block can drive the top of accuse valve rod and slide in the extrusion groove this moment, because the extrusion groove is the slope attitude of changeing, so the slip of regulating block can drive the accuse valve rod and go up and down the activity, can have certain stability through extruding spring one, can carry out more simple and convenient control to the valve body through this setting, and then improve switch work efficiency;

2. the utility model discloses a setting of backup pad, control valve rod, connecting plate, filler storehouse, shutoff head, pivot, two-way lead screw and adapter sleeve, be provided with filler storehouse in control valve rod's outside, can prevent liquid countercurrent in control valve rod's activity process through the filler in the filler storehouse, also can play the effect of steady voltage because the incessant activity of control valve rod can lead to the filler in the filler storehouse to appear loose condition, through rotating the pivot, drive two-way lead screw to rotate this moment, thereby impel the adapter sleeve of connection on backup pad and connecting plate to be close to each other, and then extrude the shutoff head, improve the leakproofness of filler storehouse with this, thereby avoid filler leakage to influence the liquid flow effect;

3. the utility model discloses a control valve pole, the valve body, cut off the piece, the rivers end cap, the setting of two springs and buffer board, rise through the control valve pole, can drive the rivers end cap and break away from at a distance from the break block, let liquid pass through the lower extreme left side opening part entering of valve body, the opening part in the middle of the rethread break block, upper end right side opening part from the valve body discharges, because the speed that liquid flows is very fast, hydraulic pressure is great, carry out stronger impact to the valve body, produce the noise easily and cause the valve body to rock, at this moment through letting liquid pass through the buffer board earlier, cushion under the effect of spring two, offset the impact force that a part liquid flows, can improve the stability of valve body through this setting, and the noise reduction effect.

Drawings

FIG. 1 is a schematic view of the front cross-sectional structure of the low-leakage stuffing seal type regulating valve of the present invention;

FIG. 2 is a schematic view of the low leakage packing seal type regulating valve sliding assembly and the regulating assembly in partial three-dimensional structure;

fig. 3 is an enlarged schematic structural diagram of a position a in fig. 1 of the low-leakage packing seal type regulating valve of the present invention.

In the figure: 1. a support plate; 2. a sliding assembly; 201. a sliding plate; 202. a chute; 203. a limiting plate; 3. an adjustment assembly; 301. a regulating block; 302. extruding a groove; 4. a lifting assembly; 401. a control valve stem; 402. a first spring; 5. a seal assembly; 501. a connecting plate; 502. a material filling bin; 503. plugging a plug; 6. a valve body; 7. a clamping assembly; 701. a rotating shaft; 702. a bidirectional screw rod; 703. connecting sleeves; 8. a spacer block; 9. a water flow plug; 10. a buffer assembly; 1001. a second spring; 1002. a buffer plate; 11. clamping the assembly; 1101. a clamping block; 1102. a rubber block.

Detailed Description

As shown in fig. 1 and 3, the low-leakage filler-sealed type regulating valve comprises a supporting plate 1 and a sealing assembly 5, wherein clamping assemblies 7 are arranged on the left and right sides of the lower end of the supporting plate 1, the clamping assemblies 7 comprise a rotating shaft 701, a bidirectional screw 702 and a connecting sleeve 703, the bidirectional screw 702 is arranged in the rotating shaft 701, the connecting sleeves 703 are arranged on the upper end and the lower end of the bidirectional screw 702, the sealing assembly 5 is arranged in the middle of the lower end of the supporting plate 1, the sealing assembly 5 comprises a connecting plate 501, a filler bin 502 and a blocking head 503, the filler bin 502 is arranged in the middle of the upper end of the connecting plate 501, the blocking head 503 is arranged at the upper end of the filler bin 502, the filler bin 502 is arranged outside the control valve rod 401, and the filler in the filler bin 502 can prevent liquid from flowing backwards in the moving process of the control valve rod 401 and can also play a role of stabilizing pressure because the control valve rod 401 continuously moves, the situation that the filler in the filler bin 502 is loose can be caused, at the moment, the rotating shaft 701 is rotated to drive the two-way screw rod 702 to rotate, so that the connecting sleeve 703 connected to the supporting plate 1 and the connecting plate 501 is enabled to be close to each other, and then the blocking head 503 is extruded, so that the sealing performance of the filler bin 502 is improved, and the influence of the leakage of the filler on the liquid flowing effect is avoided, the lower end of the connecting plate 501 is provided with the valve body 6, the middle part of the interior of the valve body 6 is provided with the blocking block 8, the right side of the lower end of the blocking block 8 is provided with the buffer assembly 10, the buffer assembly 10 comprises a second spring 1001 and a buffer plate 1002, the left end of the second spring 1001 is connected with the buffer plate 1002, the water flow blocking head 9 can be driven to be separated from the blocking block 8 by the rising of the control valve rod 401, so that the liquid can enter through the left opening of the lower end of the valve body 6 and then pass through the middle opening of the blocking block 8 to be discharged from the right opening of the upper end of the valve body 6, because the speed that liquid flows is very fast, and hydraulic pressure is great, carries out stronger impact to valve body 6, produces the noise easily and causes valve body 6 to rock, cushions under the effect of spring two 1001 through letting liquid pass through buffer board 1002 earlier this moment, offsets the impact force that partly liquid flows, can improve the stability of valve body through this setting to and the noise reduction effect.

As shown in fig. 1-2, a sliding assembly 2 is arranged at the upper end of a support plate 1, the sliding assembly 2 comprises a sliding plate 201, a sliding groove 202 and a limiting plate 203, the sliding plate 201 is internally provided with the sliding groove 202, the limiting plate 203 is arranged at the right side of the upper end of the sliding plate 201, the left side of the upper end of the sliding plate 201 is connected with an adjusting assembly 3, the adjusting assembly 3 comprises an adjusting block 301 and an extrusion groove 302, the front wall of the adjusting block 301 is provided with the extrusion groove 302, a lifting assembly 4 penetrates through the support plate 1, the lifting assembly 4 comprises a control valve rod 401 and a spring I402, the upper end of the outside of the control valve rod 401 is provided with the spring I402, the lower end of the outside of the control valve rod 401 is provided with a water flow plug 9, the sliding plate 201 is in sliding connection with the adjusting block 301, and regulating block 301 and control valve rod 401 are sliding connection, operating personnel is through promoting regulating block 301, let regulating block 301 slide on spout 202 in sliding plate 201, the removal of regulating block 301 this moment can drive the top of control valve rod 401 and slide in extrusion groove 302, because extrusion groove 302 is the slope attitude of changeing, so the slip of regulating block 301, can drive control valve rod 401 and go up and down the activity, can have certain stability through extrusion spring 402, can carry out more simple and convenient control to the valve body through this setting, and then improve switch work efficiency, the lower wall of valve body 6 is provided with block assembly 11, and block assembly 11 includes block 1101 and rubber block 1102, the inside of block 1101 is provided with rubber block 1102.

The working principle is as follows: when the low-leakage packing seal type regulating valve is used, firstly, an operator pushes the regulating block 301 to enable the regulating block 301 to slide on the sliding groove 202 in the sliding plate 201, at the moment, the movement of the regulating block 301 can drive the top end of the control valve rod 401 to slide in the extrusion groove 302, because the extrusion groove 302 is in an inclined rotating state, therefore, the sliding of the adjusting block 301 will drive the control valve rod 401 to move up and down, and the first extrusion spring 402 can have a certain stability, the filling bin 502 is arranged outside the control valve rod 401, liquid can be prevented from flowing backwards in the moving process of the control valve rod 401 through the filling in the filling bin 502, the pressure stabilizing effect can be achieved, the filling in the filling bin 502 is loose due to the continuous movement of the control valve rod 401, at the moment, the bidirectional screw rod 702 is driven to rotate through the rotation of the rotating shaft 701, thereby causing the connection sleeves 703 attached to the support plate 1 and the connection plate 501 to approach each other, and further, the packing head 503 is pressed to improve the sealability of the packing bin 502 and prevent the leakage of the packing, and by the lifting of the control valve stem 401, the water flow plug 9 can be driven to be separated from the partition block 8, so that liquid can enter from the opening at the left side of the lower end of the valve body 6 and then be discharged from the opening at the right side of the upper end of the valve body 6 through the opening in the middle of the partition block 8, because the liquid flows at a higher speed and has higher hydraulic pressure, the valve body 6 is impacted strongly, noise is easy to generate, the valve body 6 shakes, at the moment, liquid firstly passes through the buffer plate 1002, the buffer is performed under the action of the second spring 1001 to offset the impact force of a part of liquid flow, the stability of the valve body is improved, the engagement block 1101 and the rubber block 1102 can improve the stability and the sealing property of the control valve stem 401, which is the operation principle of the low-leakage packing seal type control valve.

Claims

1. Low-leakage packing type regulating valve comprises a supporting plate (1) and a sealing assembly (5) and is characterized in that the left side and the right side of the lower end of the supporting plate (1) are provided with clamping assemblies (7), the clamping assemblies (7) comprise a rotating shaft (701), a two-way screw rod (702) and a connecting sleeve (703), the inside of the rotating shaft (701) is provided with the two-way screw rod (702), the connecting sleeve (703) is arranged at each of the upper end and the lower end of the two-way screw rod (702), the sealing assembly (5) is arranged at the middle of the lower end of the supporting plate (1), the sealing assembly (5) comprises a connecting plate (501), a packing bin (502) and a blocking head (503), the middle of the upper end of the connecting plate (501) is provided with the packing bin (502), and the upper end of the inside of the packing bin (502) is provided with the blocking head (503).

2. The low-leakage stuffing seal type regulating valve according to claim 1, wherein the upper end of the supporting plate (1) is provided with a sliding assembly (2), the sliding assembly (2) comprises a sliding plate (201), a sliding chute (202) and a limiting plate (203), the sliding plate (201) is internally provided with the sliding chute (202), and the right side of the upper end of the sliding plate (201) is provided with the limiting plate (203).

3. The low-leakage stuffing seal type regulating valve according to claim 2, wherein the regulating assembly (3) is connected to the left side of the upper end of the sliding plate (201), and the regulating assembly (3) comprises a regulating block (301) and a pressing groove (302), and the pressing groove (302) is opened on the front wall of the regulating block (301).

4. The low-leakage canned type regulating valve according to claim 3, wherein the lifting assembly (4) penetrates through the inside of the supporting plate (1), and the lifting assembly (4) comprises a control valve rod (401) and a first spring (402), the first spring (402) is arranged at the upper outer end of the control valve rod (401), and the water flow plug (9) is arranged at the lower outer end of the control valve rod (401).

5. The low-leakage canned type governing valve of claim 1, wherein the lower end of the connecting plate (501) is provided with a valve body (6), and the inner middle of the valve body (6) is provided with a block (8).

6. The low-leakage stuffing seal type regulating valve according to claim 5, wherein a cushion assembly (10) is provided to the right side of the lower end of the diaphragm block (8), and the cushion assembly (10) comprises a second spring (1001) and a cushion plate (1002), and the cushion plate (1002) is connected to the left end of the second spring (1001).

7. The low-leakage stuffing seal type regulating valve according to claim 5, characterized in that a lower wall of said valve body (6) is provided with a snap fitting assembly (11), and said snap fitting assembly (11) comprises a snap fitting block (1101) and a rubber block (1102), and said snap fitting block (1101) is internally provided with the rubber block (1102).

8. The low-leakage stuffing-sealed type regulating valve according to claim 4, characterized in that the sliding plate (201) is in sliding connection with the regulating block (301), and the regulating block (301) is in sliding connection with the control valve stem (401).