CN216715251U

CN216715251U - Micro-resistance valve

Info

Publication number: CN216715251U
Application number: CN202220213650.4U
Authority: CN
Inventors: 罗兵辉; 阳超
Original assignee: Hunan Pushi Energy Saving Pump Co ltd
Current assignee: Hunan Pushi Energy Saving Pump Co ltd
Priority date: 2022-01-26
Filing date: 2022-01-26
Publication date: 2022-06-10
Anticipated expiration: 2032-01-26

Abstract

The utility model relates to a micro resistance valve belongs to the field of valve switch, and it includes the valve body, the valve body is including intaking end and play water end, position in intaking in the valve body between end and the play water end articulates there is the pivot, it is connected with big valve plate to rotate the connection in the pivot, the discharge orifice has been seted up on the big valve plate, discharge orifice department is provided with little valve plate, be provided with the connecting piece on the little valve plate, the connecting piece with the pivot is articulated, be provided with the control cylinder on the valve body, sliding connection has the piston in the control cylinder, the piston will the inner chamber of control cylinder is separated for last cavity and lower cavity, be fixed with the control lever on the piston, the one end of control lever stretches into in the valve body with the connecting piece coupling, down the cavity with intake end intercommunication, go up the cavity with go out water end intercommunication. This application has the effect of response speed when promoting the valve and opening and close.

Description

Micro-resistance valve

Technical Field

The application relates to the field of valve switches, in particular to a micro-resistance valve.

Background

At present, a check valve is often connected to a water outlet of a high-power water pump and is arranged for preventing water in a pipeline from flowing backwards. The check valve belongs to the automatic valve class, and the opening and closing piece of the check valve is opened or closed automatically by the flowing of water and gravity, and is mainly used on a pipeline for unidirectional flowing of a medium, and only allows the medium to flow in one direction so as to prevent accidents.

The existing check valve comprises a valve body, a large valve plate is hinged in the valve body, a discharge hole is formed in the large valve plate, a small valve plate is arranged on the discharge hole, a control rod connected with the small valve plate is arranged in the valve body in a penetrating mode, and the large valve plate and the small valve plate are controlled to be opened and closed by utilizing the pressure difference between the inlet end and the outlet end of the valve body.

In view of the above-mentioned related art, the inventor thinks that in order to guarantee the leakproofness when the valve is closed, often set up elastic seal structure on big valve plate and the little valve plate, can produce great frictional force at big valve plate and little valve plate when opening and close seal structure for the valve is when opening and closing the speed slower.

SUMMERY OF THE UTILITY MODEL

In order to improve the response speed when the valve is opened and closed, the application provides a micro-resistance valve.

The application provides a micro resistance valve adopts following technical scheme:

the utility model provides a micro resistance valve, includes the valve body, the valve body includes into water end and play water end, the position in the valve body between end and the play water end articulates there is the pivot, it is connected with big valve plate to rotate the connection in the pivot, the discharge orifice has been seted up on the big valve plate, discharge orifice department is provided with little valve plate, be provided with the connecting piece on the little valve plate, the connecting piece with the pivot is articulated, be provided with the control jar on the valve body, sliding connection has the piston in the control jar, the piston will the inner chamber of control jar is separated for last cavity and lower cavity, be fixed with the control lever on the piston, the one end of control lever stretches into in the valve body with the connecting piece coupling, lower cavity with the end intercommunication of intaking, go up the cavity with go out water end intercommunication.

Through adopting above-mentioned technical scheme, the water pump starts the back, and the pressure that the valve was intake and is held risees rapidly, and big valve plate and little valve plate receive pressure simultaneously, and wherein the pressure of cavity is unanimous with intake end pressure down, can promote piston and control lever and upwards remove, and the control lever drives the connecting piece and rotates, and then makes little valve plate open fast, and big valve plate is opened afterwards, and response speed is very fast, and the resistance that receives when opening the valve plate is less.

Optionally, the connecting piece includes the connecting plate, the arc spout has been seted up on the connecting plate, be provided with the horizontal pole on the control lever, the horizontal pole slides and wears to establish in the arc spout.

Through adopting above-mentioned technical scheme, the control lever drives the process that the connecting plate rebound, and the horizontal pole can slide in the arc spout, makes the control lever can drive the connecting plate and revolve the rotation of axes.

Optionally, an annular boss surrounding the drain hole is arranged on the large valve plate, and the small valve plate is abutted to the annular boss.

By adopting the technical scheme, the small valve plate is directly abutted against the annular boss instead of being inserted into the drainage hole, so that friction with the inner wall of the drainage hole is avoided in the opening process of the small valve plate, and the received resistance is small.

Optionally, a baffle ring is arranged in the valve body, an annular mounting groove is formed in one side, close to the water inlet end, of the large valve plate, an annular sealing ring and a pressing plate are arranged in the mounting groove, the sealing ring is located between the pressing plate and the large valve plate, the outer edge of the sealing ring is abutted to the baffle ring, and the pressing plate is connected with the large valve plate through a bolt.

Through adopting above-mentioned technical scheme, the sealed effect when the sealing washer can the poppet valve door close reduces the risk of infiltration, and the pressure strip can sticis ring type seal on big valve plate, makes ring type seal remain stable.

Optionally, be provided with the supporting seat on the big valve plate, the pivot is worn to establish in the supporting seat with supporting seat normal running fit, be provided with the connecting rod on the connecting plate, the tip cover of connecting rod is established in the pivot with pivot normal running fit.

Through adopting above-mentioned technical scheme, supporting seat and connecting rod do not disturb each other with pivot normal running fit respectively, make opening and close of big valve plate and little valve plate can not disturb each other, and the process of opening and close is comparatively stable.

Optionally, the rotating shaft includes a first shaft body and a second shaft body which are coaxially arranged, the diameter of the first shaft body is larger than that of the second shaft body, the first shaft body is in running fit with the supporting seat, a blocking surface which is abutted against the end face of the first shaft body is formed on the supporting seat, and the second shaft body is in running fit with the connecting rod.

Through adopting above-mentioned technical scheme, block that the butt of face and first axis body terminal surface can restrict the axial displacement of supporting seat, and then make big valve plate can not produce the displacement along the pivot axis at the in-process of opening and close, the sealing washer atress on the big valve plate is comparatively even, the less great condition of one side atress can not appear, and the leakproofness is better.

Optionally, a rib plate is arranged on the support seat and fixedly connected with the large valve plate.

Through adopting above-mentioned technical scheme, the gusset can promote the stability that supporting seat and big valve plate are connected, makes big valve plate when receiving great load, and the weak position disconnection of connecting is difficult for to supporting seat and big valve plate, and life is longer, and the gusset can make the difficult production of big valve plate crooked and warp simultaneously.

Optionally, a mounting plate is arranged on the connecting plate, a connecting column is connected to the small valve plate through threads, and the connecting column is far away from one end of the small valve plate and penetrates through the mounting plate and the locking nut through threads.

Through adopting above-mentioned technical scheme, rotatory little valve plate or lock nut can both pull down little valve plate from the connecting plate, is convenient for carry out dismouting and maintenance, and it is comparatively convenient to use.

In summary, the present application includes at least one of the following beneficial technical effects:

by arranging the control cylinder and the control rod, the pressure of the lower cavity of the control cylinder is consistent with the pressure of the water inlet end, the piston and the control rod are pushed to move upwards, the control rod drives the connecting piece to rotate, so that the small valve plate is opened quickly, the large valve plate is opened later, the response speed is high, and the resistance when the valve plate is opened is small;

through set up the arc spout on the connecting plate, at the in-process that the control lever drove the connecting plate and removes, the horizontal pole can slide in the spout, can make the linear motion of control lever and the rotation of connecting plate can not take place to interfere.

Drawings

FIG. 1 is a schematic perspective view of an embodiment of the present application;

FIG. 2 is a schematic cross-sectional view of FIG. 1;

FIG. 3 is a schematic view of the connection structure of the rotary shaft of the large valve plate and the small valve plate in FIG. 1;

fig. 4 is a schematic sectional view of the rotating shaft of fig. 2.

Description of reference numerals: 1. a valve body; 2. a water inlet end; 3. a water outlet end; 4. a rotating shaft; 41. a first shaft body; 42. a second shaft body; 5. a large valve plate; 6. a vent hole; 7. a small valve plate; 8. a supporting seat; 9. a seal ring; 10. a compression plate; 11. a control cylinder; 12. a piston; 13. a control lever; 14. a connecting plate; 15. an arc-shaped chute; 16. an annular boss; 17. a rib plate; 18. mounting a plate; 19. connecting columns; 20. a connecting rod.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses hinder valve a little, refer to FIG. 1, including valve body 1, valve body 1 is including intaking 2 ends and play water end 3, intakes 2 ends and is used for being connected with the water pump, goes out water end 3 and is used for being connected with water supply pipe.

The position rotation that is connected with pivot 4 between end 2 and the play water end 3 of intaking in valve body 1, pivot 4 are the level setting, and the rotation connection is connected with big valve plate 5 on the pivot 4, and big valve plate 5 revolutes 4 axis rotations of pivot and can realize opening and closing of valve.

Referring to fig. 1 and 2, a central position of the large valve plate 5 is provided with a discharge hole 6 in a penetrating manner, the discharge hole 6 is provided with a small valve plate 7, the small valve plate 7 is provided with a connecting piece, the connecting piece is hinged to the rotating shaft 4, and the large valve plate 5 and the small valve plate 7 can rotate around the rotating shaft 4 respectively and cannot interfere with each other. When the small valve plate 7 blocks the discharge hole 6, the valve is completely closed, and when the small valve plate 7 is separated from the discharge hole 6, the valve is in a semi-closed state.

Be provided with in the valve body 1 and keep off the ring, one side that big valve plate 5 is close to into water end 2 is provided with annular mounting groove, is provided with ring packing 9 and pressure strip 10 in the mounting groove, and sealing washer 9 is located between pressure strip 10 and the big valve plate 5, and the outer fringe and the fender of sealing washer 9 encircle the butt, and pressure strip 10 passes through the bolt and is connected with big valve plate 5.

The top of valve body 1 is provided with control cylinder 11, control cylinder 11 passes through the bolt fastening on valve body 1, sliding connection has piston 12 in control cylinder 11, piston 12 separates the inner chamber of control cylinder 11 for last cavity and lower cavity, be fixed with vertical setting's control lever 13 on the piston 12, the one end of control lever 13 stretches into in the valve body 1 and couples with the connecting piece, lower cavity and intake end 2 intercommunication, make the pressure of cavity and the water pressure of intake end 2 equal down, go up the cavity and go out water end 3 intercommunication, make the pressure of cavity and the water pressure of play water end 3 equal.

The connecting piece includes connecting plate 14, has seted up arc spout 15 on the connecting plate 14, is provided with the horizontal pole on the control lever 13, and the horizontal pole slides and wears to establish in arc spout 15. When the water pump starts, the pressure in the lower cavity is greater than the pressure in the upper cavity, the piston 12 is driven to move upwards by pressure difference, the control rod 13 is driven to move upwards, the control rod 13 can drive the connecting plate 14 to move, the small valve plate 7 is driven to rotate around the axis of the rotating shaft 4, and the cross rod can slide in the arc-shaped sliding groove 15 in the moving process.

In order to reduce the friction force applied when the lower valve plate is opened and closed, the large valve plate 5 is provided with an annular boss 16 surrounding the drainage hole 6, when the small valve plate 7 is in a closed state, the small valve plate 7 is abutted against the annular boss 16 to seal the drainage hole 6, and the friction force applied to the small valve plate 7 when the small valve plate 7 is opened is small.

Referring to fig. 3 and 4, the rotating shaft 4 includes a first shaft body 41 and a second shaft body 42 coaxially disposed, and the first shaft body 41 has a diameter larger than that of the second shaft body 42. The large valve plate 5 is provided with a supporting seat 8, the first shaft body 41 is arranged in the supporting seat 8 in a penetrating mode and is in running fit with the supporting seat 8, and a blocking face abutted to the end face of the first shaft body 41 is formed on the supporting seat 8. The connecting plate 14 is provided with a connecting rod 20, and the end part of the connecting rod 20 is sleeved on the second shaft body 42 and is in running fit with the second shaft body 42.

The two sides of the supporting seat 8 are fixedly provided with rib plates 17, and the rib plates 17 are fixedly connected with the large valve plate 5 so as to improve the overall strength.

Be provided with mounting panel 18 on the connecting plate 14, threaded connection has spliced pole 19 on the little valve plate 7, and the one end that little valve plate 7 was kept away from to spliced pole 19 passes mounting panel 18 and threaded connection has the locking nut, when little valve plate 7 need be maintained or change, can directly pull down little valve plate 7 through rotatory little valve plate 7, and the dismouting is comparatively convenient.

The implementation principle of a micro resistance valve of the embodiment of the application is as follows: after the water pump is started, the pressure of the water inlet end 2 of the valve is rapidly increased, the large valve plate 5 and the small valve plate 7 are simultaneously pressurized, wherein the pressure of the lower cavity is consistent with the pressure of the water inlet end 2, the piston 12 and the control rod 13 are pushed to move upwards, the control rod 13 drives the connecting piece to rotate, the small valve plate 7 is rapidly opened, and the large valve plate 5 is then opened; after the water pump is closed, the pressure of the water storage end is greater than that of the water inlet end 2, the pressure of the upper cavity is greater than that of the lower cavity, the piston 12 and the control rod 13 are pushed to move downwards, and the small valve plate 7 is closed quickly.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A micro-resistance valve is characterized in that: comprises a valve body (1), wherein the valve body (1) comprises a water inlet end (2) and a water outlet end (3), a rotating shaft (4) is hinged between the water inlet end (2) and the water outlet end (3) in the valve body (1), a large valve plate (5) is connected on the rotating shaft (4) in a rotating manner, a discharge hole (6) is formed in the large valve plate (5), a small valve plate (7) is arranged at the discharge hole (6), a connecting piece is arranged on the small valve plate (7) and is hinged with the rotating shaft (4), a control cylinder (11) is arranged on the valve body (1), a piston (12) is connected in the control cylinder (11) in a sliding manner, the piston (12) separates an inner cavity of the control cylinder (11) into an upper cavity and a lower cavity, a control rod (13) is fixed on the piston (12), one end of the control rod (13) extends into the valve body (1) and is coupled with the connecting piece, the lower cavity is communicated with the water inlet end (2), and the upper cavity is communicated with the water outlet end (3).

2. A micro resistance valve according to claim 1, wherein: the connecting piece includes connecting plate (14), arc spout (15) have been seted up on connecting plate (14), be provided with the horizontal pole on control lever (13), the horizontal pole slides and wears to establish in arc spout (15).

3. A micro resistance valve according to claim 2, wherein: the large valve plate (5) is provided with an annular boss (16) surrounding the drainage hole (6), and the small valve plate (7) is abutted to the annular boss (16).

4. A micro resistance valve according to claim 3, wherein: set up in valve body (1) and keep off the ring, one side that big valve plate (5) are close to into water end (2) is provided with annular mounting groove, be provided with ring type seal (9) and pressure strip (10) in the mounting groove, sealing washer (9) are located between pressure strip (10) and big valve plate (5), the outer fringe of sealing washer (9) with keep off the ring butt, pressure strip (10) through the bolt with big valve plate (5) are connected.

5. A micro resistance valve according to claim 4, wherein: be provided with supporting seat (8) on big valve plate (5), pivot (4) are worn to establish in supporting seat (8) with supporting seat (8) normal running fit, be provided with connecting rod (20) on connecting plate (14), the tip cover of connecting rod (20) is established in pivot (4) with pivot (4) normal running fit.

6. A micro resistance valve according to claim 5, wherein: the rotating shaft (4) comprises a first shaft body (41) and a second shaft body (42) which are coaxially arranged, the diameter of the first shaft body (41) is larger than that of the second shaft body (42), the first shaft body (41) is in running fit with the supporting seat (8), a blocking surface abutted against the end face of the first shaft body (41) is formed on the supporting seat (8), and the second shaft body (42) is in running fit with the connecting rod (20).

7. A micro resistance valve according to claim 6, wherein: and a rib plate (17) is arranged on the supporting seat (8), and the rib plate (17) is fixedly connected with the large valve plate (5).

8. A micro resistance valve according to claim 7, wherein: be provided with mounting panel (18) on connecting plate (14), threaded connection has spliced pole (19) on little valve plate (7), spliced pole (19) are kept away from the one end of little valve plate (7) is passed mounting panel (18) and threaded connection have the locking lock female.