CN219623275U - Hard seal vacuum fine tuning valve - Google Patents

Abstract

The utility model discloses a hard seal vacuum fine tuning valve which comprises a fine tuning valve main body, wherein the bottom ends of two sides of the fine tuning valve main body are fixedly connected with pipelines, and a valve seat is fixedly connected to the middle position of the bottom end inside the fine tuning valve main body. This hard seal vacuum fine setting valve is through being provided with connecting block, the screw sleeve, the change groove, threaded rod and first sealed pad, the outside first sealed pad of case can increase the leakproofness between disk seat and the case, prevent that gas from spilling through the gap between disk seat and the case, rotate the commentaries on classics piece when needing to adjust gaseous flow, the commentaries on classics piece drives the screw sleeve and rotates, make the screw sleeve rotate can make the threaded rod drive the case of connecting plate and connecting plate bottom go up and down, the flow that makes the case go up and down then can adjust gas, the connecting block rotates the inside of change groove and can carry out spacingly to the screw sleeve, it is relatively poor and inconvenient messenger's case goes up and down of leakproofness of vacuum fine setting valve that the solution is, the inconvenient problem of use.

Description

Hard seal vacuum fine tuning valve

Technical Field

The utility model relates to the technical field of fine tuning valves, in particular to a hard seal vacuum fine tuning valve.

Background

The valve is a mechanical device for controlling the flow rate, flow direction, pressure, temperature and the like of flowing fluid medium, the vacuum fine-tuning valve is a valve which is usually used for inflating a vacuum system and can accurately adjust the air inflow, the vacuum fine-tuning valve is suitable for conveying air without granular dust and non-corrosive gas, the valve core is lifted and lowered due to poor sealing performance and inconvenience of the fine-tuning valve when the vacuum fine-tuning valve is used, and therefore a hard-sealing vacuum fine-tuning valve is provided for solving the problems.

Disclosure of Invention

The utility model aims to provide a hard seal vacuum fine-tuning valve, which solves the problems that the vacuum fine-tuning valve provided in the prior art is poor in tightness, inconvenient to lift a valve core and inconvenient to use.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a hard seal vacuum fine setting valve, includes the fine setting valve main part, the bottom fixedly connected with pipeline of fine setting valve main part both sides, the intermediate position department fixedly connected with disk seat of the inside bottom of fine setting valve main part, the inside top of fine setting valve main part is provided with the screw sleeve, screw sleeve's top fixedly connected with commentaries on classics piece, screw sleeve's inside bottom is provided with the threaded rod, screw sleeve's outside fixedly connected with connecting block, movable groove has been seted up on the inside top of fine setting valve main part, the change groove has been seted up to the inside of movable groove, the bottom fixedly connected with connecting plate of threaded rod, the both sides fixedly connected with case of connecting plate bottom, the outside of case is provided with first sealed pad.

Preferably, the valve core is arranged at two sides of the valve seat, and the connecting block rotates in the rotating groove.

Preferably, the outside of threaded rod is provided with the external screw thread, the inside of screw sleeve is provided with the internal screw thread with external screw thread matched with, threaded rod and screw sleeve mutually support.

Preferably, the inside of pipeline is provided with the baffle, the lateral wall of baffle is provided with the second and seals up the pad, the top fixedly connected with connecting rod of baffle, the top fixedly connected with of connecting rod changes the handle, the top fixedly connected with seal shell of pipeline, the inside bottom of pipeline is provided with the spacing groove, the bottom fixedly connected with stopper of baffle.

Preferably, the limiting block rotates in the sealing shell, and the second sealing gasket is arranged in the sealing shell.

Preferably, the both sides fixedly connected with limit sliding block of connecting plate, limit sliding groove has been seted up on the top of the inside both sides of fine setting valve main part, the rolling groove has been seted up to one side of limit sliding block inside, the inside of rolling groove is provided with the ball, limit sliding block slides from top to bottom in the inside of limit sliding groove.

Compared with the prior art, the utility model has the beneficial effects that: the hard sealing vacuum fine tuning valve not only realizes the improvement of the tightness of the valve body and the convenience of lifting the valve core, but also realizes the convenience of overhauling the inside of the valve body and the improvement of the lifting stability of the valve core;

through being provided with connecting block, screw thread sleeve, turning block, change groove, threaded rod and first sealing gasket, the outside first sealing gasket of case can increase the leakproofness between disk seat and the case, prevent that gas from spilling through the gap between disk seat and the case, the turning block rotates when needing to adjust the flow of gas, the turning block drives screw thread sleeve and rotates, because threaded rod and screw thread sleeve mutually support and the connecting block rotates in the inside of change groove, so make screw thread sleeve rotate can make the threaded rod drive the case of connecting plate and connecting plate bottom and go up and down, make the case go up and down then can adjust the flow of gas, the connecting block rotates in the inside of change groove and can carry out spacing to the screw thread sleeve;

through being provided with baffle, seal shell, second is sealed fills up, the spacing groove, the stopper, connecting rod and changeing the handle, when need examine and repair the inside of fine setting valve main part or the inside subassembly of fine setting valve main part damages, it drives the baffle through the connecting rod to change the handle and rotate, thereby can make the baffle shelter from the inside gas that circulates of pipeline, prevent that gas from flowing in the inside of pipeline, thereby can conveniently examine and repair the inside subassembly of fine setting valve main part, the outside second is sealed fills up and can increase the leakproofness between baffle and the second, the stopper of baffle bottom can rotate in the inside of spacing groove when the baffle rotates;

through being provided with spacing spout, ball, slot and spacing slider, the spacing slider of connecting plate both sides can go up and down in the inside of spacing spout when the connecting plate drives the case and goes up and down, and spacing slider can carry out spacing stability that improves the connecting plate and go up and down to the connecting plate in the inside of spacing spout goes up and down, is provided with the ball at the inside of slot, and the ball not only can reduce the friction between spacing slider and the spacing spout can also conveniently make the slider slide about the inside of spacing spout.

Drawings

FIG. 1 is a schematic cross-sectional elevation view of the present utility model;

FIG. 2 is an enlarged schematic side view of the connecting rod of the present utility model;

FIG. 3 is an enlarged partial cross-sectional schematic view of a threaded sleeve according to the present utility model;

fig. 4 is an enlarged partial sectional view of fig. 1 according to the present utility model.

In the figure: 1. a trim valve body; 2. a baffle; 3. a pipe; 4. a sealed housing; 5. a connecting plate; 6. limiting sliding grooves; 7. a connecting block; 8. a threaded sleeve; 9. a rotating block; 10. a rotary groove; 11. a threaded rod; 12. a first gasket; 13. a second gasket; 14. a limit groove; 15. a valve seat; 16. a valve core; 17. a limiting block; 18. a connecting rod; 19. a rotating handle; 20. a movable groove; 21. a ball; 22. rolling grooves; 23. and a limit sliding block.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1: referring to fig. 1-4, a hard seal vacuum fine tuning valve comprises a fine tuning valve main body 1, wherein the bottom ends of two sides of the fine tuning valve main body 1 are fixedly connected with a pipeline 3, a valve seat 15 is fixedly connected to the middle position of the bottom end inside the fine tuning valve main body 1, a threaded sleeve 8 is arranged at the top end inside the fine tuning valve main body 1, a rotating block 9 is fixedly connected to the top end of the threaded sleeve 8, a threaded rod 11 is arranged at the bottom end inside the threaded sleeve 8, a connecting block 7 is fixedly connected to the outside of the threaded sleeve 8, a movable groove 20 is formed in the top end inside the fine tuning valve main body 1, a rotating groove 10 is formed in the inside of the movable groove 20, a connecting plate 5 is fixedly connected to the bottom end of the threaded rod 11, valve cores 16 are fixedly connected to two sides of the bottom end of the connecting plate 5, and a first sealing gasket 12 is arranged outside the valve cores 16;

the valve core 16 is arranged at two sides of the valve seat 15, the connecting block 7 rotates in the rotary groove 10, external threads are arranged outside the threaded rod 11, internal threads matched with the external threads are arranged inside the threaded sleeve 8, and the threaded rod 11 and the threaded sleeve 8 are mutually matched;

specifically, as shown in fig. 1 and 3, the first sealing gasket 12 outside the valve core 16 can increase the tightness between the valve seat 15 and the valve core 16, prevent gas from leaking out through the gap between the valve seat 15 and the valve core 16, rotate the rotating block 9 when the flow rate of gas needs to be regulated, the rotating block 9 drives the threaded sleeve 8 to rotate, and because the threaded rod 11 and the threaded sleeve 8 are mutually matched and the connecting block 7 rotates in the rotating groove 10, the threaded sleeve 8 is made to rotate so that the threaded rod 11 drives the valve core 16 at the bottom ends of the connecting plate 5 and the connecting plate 5 to lift, the valve core 16 can regulate the flow rate of gas when being lifted, and the connecting block 7 rotates in the rotating groove 10 to limit the threaded sleeve 8.

Example 2: the inside of the pipeline 3 is provided with a baffle plate 2, the outer side wall of the baffle plate 2 is provided with a second sealing gasket 13, the top end of the baffle plate 2 is fixedly connected with a connecting rod 18, the top end of the connecting rod 18 is fixedly connected with a rotating handle 19, the top end of the pipeline 3 is fixedly connected with a sealing shell 4, the bottom end of the inside of the pipeline 3 is provided with a limiting groove 14, the bottom end of the baffle plate 2 is fixedly connected with a limiting block 17, the limiting block 17 rotates in the sealing shell 4, and the second sealing gasket 13 is arranged in the sealing shell 4;

specifically, as shown in fig. 1 and 2, when the interior of the fine tuning valve body 1 is required to be overhauled or when the components inside the fine tuning valve body 1 are damaged, the rotating handle 19 drives the baffle plate 2 to rotate through the connecting rod 18, so that the baffle plate 2 can shield the gas flowing inside the pipeline 3, the gas is prevented from flowing inside the pipeline 3, the components inside the fine tuning valve body 1 can be overhauled conveniently, the second sealing gasket 13 outside the baffle plate 2 can increase the tightness between the baffle plate 2 and the second sealing gasket 13, and the limiting block 17 at the bottom end of the baffle plate 2 can rotate inside the limiting groove 14 when the baffle plate 2 rotates.

Example 3: limiting sliding blocks 23 are fixedly connected to two sides of the connecting plate 5, limiting sliding grooves 6 are formed in the top ends of two sides of the inner portion of the fine tuning valve main body 1, rolling grooves 22 are formed in one side of the inner portion of the limiting sliding blocks 23, balls 21 are arranged in the rolling grooves 22, and the limiting sliding blocks 23 slide up and down in the inner portion of the limiting sliding grooves 6;

specifically, as shown in fig. 1 and fig. 4, when the connecting plate 5 drives the valve core 16 to lift, the limit sliding blocks 23 on two sides of the connecting plate 5 lift in the limit sliding groove 6, the limit sliding blocks 23 lift in the limit sliding groove 6 to limit the connecting plate 5, so that the lifting stability of the connecting plate 5 is improved, the balls 21 are arranged in the rolling grooves 22, and the balls 21 not only can reduce friction between the limit sliding blocks 23 and the limit sliding groove 6, but also can facilitate the limit sliding blocks 23 to slide up and down in the limit sliding groove 6.

Working principle: when the valve seat 15 and the valve core 16 are in use, the sealing performance between the valve seat 15 and the valve core 16 can be improved by the first sealing gasket 12 outside the valve core 16, gas is prevented from leaking out through a gap between the valve seat 15 and the valve core 16, the rotating block 9 drives the threaded sleeve 8 to rotate when the flow rate of the gas needs to be regulated, the threaded sleeve 8 rotates to enable the threaded rod 11 to drive the valve core 16 at the bottom end of the connecting plate 5 to lift, the size of the gap between the valve seat 15 and the valve core 16 can be regulated by lifting the valve core 16, so that the flow rate of the gas can be regulated, when the connecting plate 5 drives the valve core 16 to lift, the limit sliding blocks 23 at two sides of the connecting plate 5 can lift inside the limit sliding grooves 6, the stability of lifting of the connecting plate 5 can be improved by limiting the connecting plate 5, the balls 21 inside the rolling grooves 22 can reduce friction between the limit sliding blocks 23 and the limit sliding grooves 6, the limit sliding blocks 23 can conveniently slide up and down inside the limit sliding grooves 6, when the inside the trimming valve body 1 needs to be overhauled inside the trimming valve body 1 or when components inside the trimming valve body 1 are damaged, the trimming valve body 1 rotates the rotating handle 19, the baffle 2 is driven by the connecting rod 18 to rotate, so that the baffle 2 can be blocked inside the pipeline 3, and the gas can be prevented from flowing inside the pipeline 3.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. A hard seal vacuum trim valve comprising a trim valve body (1), characterized in that: the utility model discloses a fine setting valve, including fine setting valve main part (1), screw sleeve (8) are provided with threaded rod (11), screw sleeve (8)'s outside fixedly connected with connecting block (7), movable groove (20) have been seted up on the inside top of fine setting valve main part (1), change groove (10) have been seted up to the inside of movable groove (20), the bottom fixedly connected with connecting plate (5) of threaded rod (11), the both sides fixedly connected with case (16) of connecting plate (5) bottom, the outside of case (16) is provided with first sealed pad (12).

2. A hard seal vacuum trim valve as defined in claim 1, wherein: the valve core (16) is arranged on two sides of the valve seat (15), and the connecting block (7) rotates in the rotary groove (10).

3. A hard seal vacuum trim valve as defined in claim 1, wherein: the external thread is arranged on the outer portion of the threaded rod (11), the internal thread matched with the external thread is arranged in the threaded sleeve (8), and the threaded rod (11) and the threaded sleeve (8) are matched with each other.

4. A hard seal vacuum trim valve as defined in claim 1, wherein: the inside of pipeline (3) is provided with baffle (2), the lateral wall of baffle (2) is provided with second sealed pad (13), the top fixedly connected with connecting rod (18) of baffle (2), the top fixedly connected with of connecting rod (18) changes handle (19), the top fixedly connected with seal shell (4) of pipeline (3), the inside bottom of pipeline (3) is provided with spacing groove (14), the bottom fixedly connected with stopper (17) of baffle (2).

5. The hard seal vacuum trim valve of claim 4, wherein: the limiting block (17) rotates in the sealing shell (4), and the second sealing gasket (13) is arranged in the sealing shell (4).

6. A hard seal vacuum trim valve as defined in claim 1, wherein: limiting sliding blocks (23) are fixedly connected to two sides of the connecting plate (5), limiting sliding grooves (6) are formed in the top ends of two sides of the inner portion of the fine tuning valve body (1), rolling grooves (22) are formed in one side of the inner portion of the limiting sliding blocks (23), balls (21) are arranged in the rolling grooves (22), and the limiting sliding blocks (23) slide up and down in the inner portion of the limiting sliding grooves (6).