CN220320326U

CN220320326U - Three-way vacuum negative pressure valve capable of improving operation stability of valve rod

Info

Publication number: CN220320326U
Application number: CN202322036400.5U
Authority: CN
Inventors: 詹平利; 傅红兵
Original assignee: Zhejiang Yuqi New Energy Co ltd
Current assignee: Zhejiang Yuqi New Energy Co ltd
Priority date: 2023-08-01
Filing date: 2023-08-01
Publication date: 2024-01-09
Anticipated expiration: 2033-08-01

Abstract

The utility model discloses a three-way vacuum negative pressure valve capable of improving the operation stability of a valve rod, which comprises a valve body, wherein a channel pipe is integrally formed and connected to the top of the valve body, guide mechanisms are fixedly arranged on two sides of the inner cavity of the channel pipe, each guide mechanism comprises a guide block fixedly connected to the inner wall of the channel pipe, a movable groove I is formed in the inner side of each guide block, a movable groove II is formed in one side of the inner cavity of each movable groove I, the valve rod is of a structure design of guiding and limiting the valve rod in the valve body, when the valve rod works, the installation position of the valve rod is corrected under the guiding of an inclined plane, and then the limiting valve rod is guided to move downwards under the action of an adapter and the whole guide mechanism, so that the valve rod accurately moves according to a preset moving track to avoid deviation, thereby avoiding the valve rod from being blocked in the channel pipe and causing the failure of the valve body to work normally, and ensuring the working smoothness of the valve body.

Description

Three-way vacuum negative pressure valve capable of improving operation stability of valve rod

Technical Field

The utility model relates to the technical field of vacuum negative pressure valves, in particular to a three-way vacuum negative pressure valve capable of improving the operation stability of a valve rod.

Background

The vacuum negative pressure valve comprises main parts such as valve body, end cover, valve rod, installs and plays the safety protection effect in the system, and the working process of negative pressure valve is, and the valve rod wherein is movable under the effect of pressure for valve body "head and tail" both ends intercommunication is in order to supply the air current to pass through, thereby discharge the atmospheric pressure of "overload" in the equipment, current negative pressure valve rod when opening the activity, only the spring can provide "thin" support, and the valve rod is when opening the activity, still exists the condition of rocking easily, so that when the closure, the valve rod is difficult to accurate reset closure, the card is in the valve body easily, leads to the system not sealed enough, influence the normal operating of system.

The present utility model has been made in view of the above problems.

Disclosure of Invention

The utility model provides a three-way vacuum negative pressure valve capable of improving the operation stability of a valve rod, and solves the problems in the use process in the prior art.

The technical scheme of the utility model is realized as follows: the utility model provides a three-way vacuum negative pressure valve that can improve valve rod operating stability, includes the valve body, the top integrated into one piece of valve body is connected with the passageway pipe, the equal fixed mounting in both sides of passageway pipe inner chamber has guiding mechanism, guiding mechanism includes the guiding block of fixed connection on passageway pipe inner wall, movable groove one has been seted up to guiding block's inboard, movable groove two has been seted up to one side of movable groove one inner chamber, the inner chamber movable mounting of movable groove two has the movable block, one side fixedly connected with of movable block is in the movable plate one of movable groove inner chamber activity, the equal fixedly connected with spring two of top and bottom of movable block, one end fixedly connected with that the movable block was kept away from to the spring two is on the inner wall of movable groove two, one side fixedly connected with four spacing slide bars of movable plate one side fixedly connected with of keeping away from the movable block, the surface sliding mounting of four spacing slide bars has the movable plate two, one side fixedly connected with two springs three that are close to spacing slide bar, one side fixedly connected with of movable plate one is kept away from the movable plate on the movable plate two, two fitting down of one side fixedly arranged on one side of movable plate one is kept away from the movable plate.

The three-way vacuum negative pressure valve for improving the operation stability of the valve rod disclosed by the utility model is further provided with: limiting grooves are formed in two sides of the inner cavity of the movable groove II, and limiting sliding blocks matched with the two limiting grooves are fixedly connected to two sides of the movable block.

The three-way vacuum negative pressure valve for improving the operation stability of the valve rod disclosed by the utility model is further provided with: the adapter comprises a ball sleeve fixedly connected to the second movable plate, and balls are arranged in the ball sleeve in a rolling mode.

The three-way vacuum negative pressure valve for improving the operation stability of the valve rod disclosed by the utility model is further provided with: the top and the bottom of guide block all are provided with the inclined plane, and two inclined planes all incline thirty degrees towards the inboard of guide block.

The three-way vacuum negative pressure valve for improving the operation stability of the valve rod disclosed by the utility model is further provided with: the valve body is communicated with the channel pipe, and a sealing gasket III is fixedly arranged on one side of the inner cavity of the valve body. The three-way vacuum negative pressure valve for improving the operation stability of the valve rod disclosed by the utility model is further provided with: the top demountable installation of passageway pipe has the end cover body, the bottom of end cover body stretches into the inner chamber of passageway pipe and peg graft and have the valve rod, the valve rod is located between two guiding mechanism, the neat chamber of collection of end cover body inner chamber looks adaptation has been seted up at the top of passageway pipe, a plurality of inlet ports with end cover body inner chamber intercommunication have been seted up on the surface of end cover body, spring one has been cup jointed to the bottom of valve rod, one end laminating that the valve rod was kept away from on the inner wall of passageway pipe inner chamber bottom.

The three-way vacuum negative pressure valve for improving the operation stability of the valve rod disclosed by the utility model is further provided with: the surface of the valve rod is sleeved with a first sealing gasket matched with the end cover body, and the surface of the end cover body is sleeved with a second sealing gasket matched with the channel pipe.

In summary, the beneficial effects of the utility model are as follows:

1. according to the utility model, the guide limiting structural design is adopted in the valve body and at the outer side of the valve rod, when the valve rod works, the installation position is corrected under the guide of the inclined plane, and then the guide limiting valve rod is guided to continuously move downwards under the action of the adapting piece and the whole guide mechanism, so that the valve rod accurately moves according to a given moving track to avoid deviation, and the valve rod is prevented from being blocked in the channel pipe to cause the failure of the valve body and incapable of working normally, and the working smoothness of the valve body is ensured.

2. According to the utility model, through the arrangement of the limiting groove and the limiting slide block, when the movable block moves up and down along with the insertion of the valve rod, the limiting slide block is driven to slide up and down in the inner cavity of the limiting groove, so that the movable block is limited, and the stability of the movable block during sliding is ensured.

3. According to the utility model, through the arrangement of the adapter, when the valve rod is inserted between the two guide mechanisms, the surface of the valve rod is contacted with the balls, and the balls roll along with the continuous movement of the valve rod, so that the valve rod can be more smoothly inserted into the channel pipe, and the stability of the valve rod during movement is ensured.

4. According to the utility model, through the arrangement of the inclined plane, when the valve rod works, if the valve rod inclines, the bottom of the valve rod can contact with the inclined plane, so that the valve rod can continuously move vertically and directly under the guidance of the inclined plane, and the valve rod is ensured not to deviate when moving.

5. According to the utility model, through the arrangement of the sealing gasket III, the sealing gasket III is arranged in the valve body, and when the valve body is in butt joint with equipment, the sealing gasket III can seal a gap between the valve body and the equipment, so that the tightness of the valve body and the equipment in operation is improved.

6. According to the utility model, through the arrangement of the valve rod, the first spring, the air inlet, the collecting cavity, the first sealing gasket and the second sealing gasket, when air flow enters the inner cavity of the end cover body through the air inlet, the air flow can be collected in the inner cavity of the collecting cavity, the valve rod can be pushed downwards along with the enhancement of air pressure, the first spring is compressed, the valve rod can move downwards between the two guide mechanisms at the same time, the downward movement stability is improved under the limit of the two guide mechanisms until the inner cavity of the end cover body is communicated with the inner cavity of the channel pipe, and the air flow enters the inner cavity of the channel pipe and then enters the valve body to be finally discharged.

7. According to the utility model, through the arrangement of the first sealing gasket and the second sealing gasket, the first sealing gasket is arranged on the valve rod and is used for sealing the gap between the valve rod and the end cover body when the valve body does not work, so that the tightness of the valve body when the valve body does not work is ensured, and the second sealing gasket is arranged on the end cover body and is used for sealing the gap between the end cover body and the channel pipe when the end cover body is installed, so that the tightness of the whole valve body can be ensured.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the front view of the present utility model;

FIG. 3 is a partial perspective cutaway schematic view of the guide mechanism;

FIG. 4 is a schematic cross-sectional view of a perspective structure of a guide block;

FIG. 5 is a partial perspective view of the guide mechanism;

fig. 6 is a perspective view of the guide mechanism and valve stem assembly.

In the figure: 1. valve body, 2, channel pipe, 3, guiding mechanism, 4, end cover body, 5, valve rod, 6, spring one, 7, inlet port, 8, collection are neat chamber, 9, sealing pad one, 10, sealing pad two, 11, sealing pad three, 31, guiding block, 32, movable groove one, 33, movable groove two, 34, spacing groove, 35, movable block, 36, spacing slider, 37, spring two, 38, movable plate one, 39, spacing slider, 310, movable plate two, 311, ball sleeve, 312, ball, 313, inclined plane, 314, spring three.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to fig. 1 to 6 of the embodiments of the present utility model, and it is obvious that the described embodiments 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.

Examples

The utility model provides a three-way vacuum negative pressure valve capable of improving valve rod operational stability, includes valve body 1, the top integrated into one piece of valve body 1 is connected with passageway pipe 2, the equal fixed mounting in both sides of passageway pipe 2 inner chamber has guiding mechanism 3, guiding mechanism 3 includes guiding block 31 of fixed connection on passageway pipe 2 inner wall, movable slot one 32 has been seted up to guiding block 31's inboard, movable slot two 33 has been seted up to one side of movable slot one 32 inner chamber, the inner chamber movable mounting of movable slot two 33 has movable block 35, one side fixedly connected with of movable block 35 is in movable slot one 38 of movable slot one 32 inner chamber activity, the equal fixedly connected with spring two 37 in top and bottom of movable block 35, one end fixedly connected with that the movable block 35 was kept away from to spring two 37 is on the inner wall of movable slot two 33, one side fixedly connected with four spacing slide bars 39 of movable plate one 38, the surface sliding mounting of four spacing slide bars 39 has movable plate two spring three 314 are close to one side fixedly connected with of spacing slide bar 39, two movable plate three 314 are kept away from on one side fixedly connected with two movable plate 310 of movable plate one end of movable plate two movable plate 38, one end fixedly connected with two movable plate 310 is kept away from one movable plate one side of movable plate 38.

The specific use process is as follows: when the valve body works, air flow enters the inside of the end cover body 4 from a plurality of air inlets 7 and also enters the inside of the collecting cavity 8 to be temporarily collected, at the moment, with the enhancement of air pressure, the valve rod 5 can be pushed downwards, the spring I6 is compressed, the valve rod 5 can move downwards between the two guide mechanisms 3, the stability of the downward movement is improved under the limit of the two guide mechanisms 3 until the inner cavity of the end cover body 4 is communicated with the inner cavity of the channel tube 2, the air flow enters the inner cavity of the channel tube 2 and then enters the valve body 1 to be finally discharged, the valve body is characterized in that when the valve rod 5 moves downwards, a part slides in the inner cavity of the end cover body 4, the action of the end cover body 4 can play a limiting action on the valve rod 5, the valve rod 5 is ensured to move vertically downwards, with the continuous movement of the valve rod 5, the inner cavity of the end cover body 4 is communicated with the inner cavities of the channel pipe 2 and the valve body 1, the valve rod 5 is separated from the end cover body 4, so that the end cover body 4 and the channel pipe 2 can be communicated, the valve rod 5 is in an unstable state, only the first spring 6 can provide support for the valve rod 5 and is easy to incline and clamp in the valve body, but the two guide mechanisms 3 can provide limit and guide for the valve rod 5 when the valve rod 5 is separated from the end cover body 4, ensure that the valve rod 5 can move vertically and directly when being separated from the end cover body 4, the two guide mechanisms 3 are respectively arranged on two sides of the valve rod 5, namely, the valve rod 5 is positioned between the two guide mechanisms 3, the two guide mechanisms 3 can provide support for the valve rod 5, the inclined condition of the valve rod 5 is avoided when moving, the stability of the valve rod 5 when working is ensured, the valve rod 5 is prevented from being clamped in the valve body, the valve body is abnormal, thereby ensuring that the system can normally operate, and it is required to be explained that the upper and lower width of the guide mechanism 3 is not fixed, or the upper and lower width of the guide mechanism 3 can be properly increased according to actual demands, that is, the upper and lower width of the guide mechanism 3 can be widened, so that the valve rod 5 can be guided and limited at all times when the valve rod 5 moves down, thereby meeting actual use demands, specifically, when the valve rod 5 moves down, the surface of the valve rod 5 can be contacted with the balls 312, and can be attached to the inner wall of the guide block 31, but the movement of the valve rod 5 is not affected, meanwhile, the balls 312 can provide assistance to the movement of the valve rod 5, or the traction balls 312 received by the valve rod 5 roll in the inner cavity of the ball sleeve 311 when the valve rod 5 moves, so as to improve the smoothness when the valve rod 5 moves, meanwhile, the surface of the valve rod 5 can also squeeze the movable plate two 310 through the balls 312, at the moment, the movable plate two side 39 can slide on the four limit plates 39, and move in the direction of the movable plate 38, simultaneously, the three side of the movable plate 314 can be compressed by the three springs 314, and the three springs 314 can be compressed by the corresponding to the inner cavity 35 when the movable plate 35 is compressed by the three springs 35, the two side of the movable plate 35 is compressed, and the sliding plate 35 can be compressed by the two side 35, and the sliding plate 35 can be compressed by the corresponding to the movement of the movable plate 35, and the movement of the movable plate 35 is also can be compressed by the movement of the movable plate 35, and the movement can be compressed by the movement can has the sliding plate 35, it should be noted that, when the movable block 35 slides, the limiting slider 36 is further driven to slide in the inner cavity of the limiting slot 34, so as to limit the movable block 35, and improve the stability of the movable block 35 when moving.

So adopt inside the valve body and set up the spacing structural design of guide in the outside of valve rod, can correct the mounted position under the guide of inclined plane 313 earlier when valve rod 5 at the during operation, then guide spacing valve rod 5 under the effect of adapter and whole guiding mechanism 3 and continue to move down, so valve rod 5 is accurate to avoid appearing the skew according to the operation of established activity orbit to avoid valve rod 5 card to cause the unable normal work of valve body trouble in the inside of passageway pipe 2, guarantee the smoothness nature of valve body work.

It should be noted that, the functions to be realized by each hardware in the present utility model are supported by a large number of mature technologies, which belongs to the prior art, and the essence of the present utility model is to optimally combine the existing hardware and the connection mode thereof for specific application occasions, so as to meet the adaptation requirements of the specific application occasions and solve the problems (not related to the improvement of the internal software of the hardware) presented in the background art.

Limiting grooves 34 are formed in two sides of the inner cavity of the second movable groove 33, and limiting sliding blocks 36 matched with the two limiting grooves 34 are fixedly connected to two sides of the movable block 35.

Specifically, when the movable block 35 moves up and down along with the insertion of the valve rod 5, the limiting slide block 36 is also driven to slide up and down in the inner cavity of the limiting groove 34, so that the movable block 35 is limited, and the stability of the movable block 35 during sliding is ensured.

The adapter comprises a ball sleeve 311 fixedly connected to the second movable plate 310, and balls 312 are arranged in the ball sleeve 311 in a rolling manner.

Specifically, the setting of adapter, when valve rod 5 inserts between two guiding mechanism 3, its surface can contact with ball 312 to along with the continuation of valve rod 5 removes, ball 312 also can follow the roll, so valve rod 5 just can more fluently insert in channel pipe 2, guarantee the stability when valve rod 5 activity.

The top and bottom of the guide block 31 are provided with inclined surfaces 313, and both inclined surfaces 313 are inclined toward the inside of the guide block 31 by thirty degrees.

Specifically, when the valve rod 5 works, if the valve rod 5 tilts, the bottom of the valve rod 5 contacts the inclined surface 313, so that the valve rod 5 continues to move vertically under the guidance of the inclined surface 313, and no deflection occurs when the valve rod 5 moves.

The valve body 1 is communicated with the channel pipe 2, and a sealing gasket III 11 is fixedly arranged on one side of the inner cavity of the valve body 1.

Specifically, the sealing gasket III 11 is arranged in the valve body 1, and when the valve body 1 is in butt joint with equipment, the sealing gasket III 11 can seal a gap between the valve body 1 and the equipment, so that the tightness of the valve body and the equipment in operation is improved.

The top demountable installation of passageway pipe 2 has end cover body 4, the bottom of end cover body 4 stretches into passageway pipe 2's inner chamber and peg graft and have valve rod 5, valve rod 5 is located between two guiding mechanism 3, the neat chamber 8 of collection of end cover body 4 inner chamber looks adaptation has been seted up at the top of passageway pipe 2, a plurality of inlet ports 7 with end cover body 4 inner chamber intercommunication have been seted up on the surface of end cover body 4, spring one 6 has been cup jointed to the bottom of valve rod 5, one end laminating that valve rod 5 was kept away from to spring one 6 is on the inner wall of passageway pipe 2 inner chamber bottom.

Specifically, when the air flow enters the inner cavity of the end cover body 4 through the air inlet hole 7, and the air flow is gathered in the inner cavity of the collecting cavity 8, the valve rod 5 is pushed downwards along with the enhancement of the air pressure, the first spring 6 is compressed, the valve rod 5 moves downwards between the two guide mechanisms 3, the downward movement stability is improved under the limit of the two guide mechanisms 3 until the inner cavity of the end cover body 4 is communicated with the inner cavity of the channel tube 2, and the air flow enters the inner cavity of the channel tube 2 and then enters the valve body 1 to be finally discharged, which is the prior art.

The surface of the valve rod 5 is sleeved with a first sealing gasket 9 which is matched with the end cover body 4, and the surface of the end cover body 4 is sleeved with a second sealing gasket 10 which is matched with the channel pipe 2.

Specifically, the first sealing gasket 9 and the second sealing gasket 10 are arranged, the first sealing gasket 9 is arranged on the valve rod 5 and is used for sealing a gap between the valve rod 5 and the end cover body 4 when the valve body does not work, the tightness of the valve body when the valve body does not work is guaranteed, the second sealing gasket 10 is arranged on the end cover body 4 and is used for sealing a gap between the end cover body 4 and the channel pipe 2 when the end cover body 4 is installed, and therefore the tightness of the whole valve body can be guaranteed.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. The utility model provides a can improve three-way vacuum negative pressure valve of valve rod operating stability, includes valve body (1), its characterized in that: the top integrated into one piece of valve body (1) is connected with passageway pipe (2), the both sides of passageway pipe (2) inner chamber are all fixedly connected with guiding mechanism (3), guiding mechanism (3) are including guide block (31) of fixed connection on passageway pipe (2) inner wall, movable groove one (32) has been seted up to the inboard of guide block (31), movable groove two (33) have been seted up to one side of movable groove one (32) inner chamber, movable block (35) have been seted up to the inner chamber movable groove two (33), one side fixedly connected with of movable block (35) is in movable plate one (38) of movable groove one (32) inner chamber activity, the top and the bottom of movable block (35) are all fixedly connected with spring two (37), one end fixed connection that the spring two (37) kept away from movable block (35) is on the inner wall of movable groove two (33), one side fixedly connected with four spacing slide bar (39) of movable plate one side, four spacing slide bar (39) are installed on the surface sliding plate two (310) of movable plate two (38), one side (314) that the movable plate (38) are kept away from on one side of movable plate (38) is kept away from on one side of movable plate (310) fixedly connected with spring two (37), two adapting pieces which are distributed up and down are fixedly arranged on one side of the movable plate II (310) away from the movable plate I (38).

2. The three-way vacuum negative pressure valve capable of improving operation stability of a valve rod according to claim 1, wherein: limiting grooves (34) are formed in two sides of an inner cavity of the movable groove II (33), and limiting sliding blocks (36) matched with the two limiting grooves (34) are fixedly connected to two sides of the movable block (35).

3. The three-way vacuum negative pressure valve capable of improving operation stability of a valve rod according to claim 1, wherein: the adapter comprises a ball sleeve (311) fixedly connected to the second movable plate (310), and balls (312) are arranged in the ball sleeve (311) in a rolling mode.

4. A three-way vacuum negative pressure valve capable of improving the operation stability of a valve rod according to claim 3, wherein: the top and the bottom of the guide block (31) are provided with inclined planes (313), and the two inclined planes (313) incline towards the inner side of the guide block (31) for thirty degrees.

5. The three-way vacuum negative pressure valve capable of improving operation stability of a valve rod according to claim 1, wherein: the valve body (1) is communicated with the channel pipe (2), and a sealing gasket III (11) is fixedly arranged on one side of the inner cavity of the valve body (1).

6. The three-way vacuum negative pressure valve capable of improving operation stability of a valve rod according to claim 5, wherein: the utility model discloses a passageway pipe, including passageway pipe (2), passageway pipe (4), end cover body (4) are detachably installed at the top, the bottom of end cover body (4) stretches into the inner chamber of passageway pipe (2) and peg graft and have valve rod (5), valve rod (5) are located between two guiding mechanism (3), the even chamber (8) of collection of end cover body (4) inner chamber looks adaptation has been seted up at the top of passageway pipe (2), a plurality of inlet port (7) with end cover body (4) inner chamber intercommunication have been seted up on the surface of end cover body (4), spring one (6) have been cup jointed to the bottom of valve rod (5), one end laminating that valve rod (5) were kept away from to spring one (6) is on the inner wall of passageway pipe (2) inner chamber bottom.

7. The three-way vacuum negative pressure valve capable of improving operation stability of a valve rod according to claim 6, wherein: the surface of valve rod (5) cup joints sealed pad one (9) with end cover body (4) looks adaptation, the surface of end cover body (4) cup joints sealed pad two (10) with passageway pipe (2) looks adaptation.