CN217559105U

CN217559105U - High-pressure sealing check valve

Info

Publication number: CN217559105U
Application number: CN202220937369.5U
Authority: CN
Inventors: 程子健
Original assignee: Jinan Deke Pump Co ltd
Current assignee: Jinan Deke Pump Co ltd
Priority date: 2022-04-21
Filing date: 2022-04-21
Publication date: 2022-10-11
Anticipated expiration: 2032-04-21

Abstract

The application relates to the technical field of check valves, and discloses a high-pressure sealing check valve, it includes valve body, non return mechanism and is used for clearing up the clearance mechanism of the surface adhering to impurity of non return mechanism, valve pocket, inlet channel and exhalant canal have been seted up in the valve body, the inlet channel with the exhalant canal all with the valve pocket intercommunication, non return mechanism with the valve body is connected, non return mechanism is used for right the inlet channel seals, clearance mechanism connect with the valve body is connected. This application has the effect that improves the stability of check valve work.

Description

High-pressure sealing check valve

Technical Field

The application relates to the field of check valves, in particular to a high-pressure sealing check valve.

Background

The check valve is a valve whose opening and closing piece is a circular valve clack and can be operated by its self-weight and medium pressure to block back flow of medium. It belongs to the automatic valve category, also called check valve, reflux valve or isolation valve. The valve clack motion mode is divided into lifting type and swing type. Check valves of this type function to allow flow of the medium in one direction only, but to prevent flow in the opposite direction. Typically such valves are self-actuating, with the flap opening under the pressure of a fluid flowing in one direction; when the fluid flows in the opposite direction, the valve clack is acted on the valve seat by the fluid pressure and the self weight of the valve clack, thereby cutting off the flow.

In view of the above-mentioned related technologies, the inventor believes that the fluid in the pipeline generally has impurities, and after the fluid is used for a long time, part of the impurities will be attached to the valve body, and if the impurities are attached to the matching surface of the valve seat and the valve flap, the check valve will not be closed normally, and the defect that the effect of limiting the reverse flow of the fluid by the check valve is affected exists.

SUMMERY OF THE UTILITY MODEL

In order to alleviate the influence of impurity attached to disk seat and valve clack fitting surface to check valve working effect, this application provides a high pressure seal check valve.

The application provides a pair of high pressure seal check valve adopts following technical scheme:

the utility model provides a high pressure seal check valve, includes valve body, non return mechanism and is used for clearing up the clearance mechanism of non return mechanism surface adnexed impurity, seted up valve pocket, inlet channel and exhalant canal in the valve body, the inlet channel with the exhalant canal all with the valve pocket intercommunication, non return mechanism with the valve body is connected, non return mechanism is used for right the inlet channel seals, clearance mechanism connect with the valve body is connected.

By adopting the technical scheme, the valve body is internally provided with the valve cavity, the water inlet channel and the water outlet channel, when water flows from the water inlet channel to the water outlet channel, the water inlet channel is opened by the check mechanism under the action of the water flow, so that the water flows out from the water outlet channel after passing through the valve cavity, and when no water flows to the water outlet channel from the water inlet channel, the check mechanism seals the water outlet channel and prevents the water in the water outlet channel from flowing back to the water inlet channel; the valve body is connected with the cleaning mechanism, the cleaning mechanism is used for cleaning the non-return mechanism, and the possibility that the non-return mechanism cannot prevent water in the water outlet channel from flowing back to the water inlet channel due to the attachment of impurities is reduced.

Optionally, the check mechanism includes a valve seat, a valve flap and a connecting rod, the valve seat is fixedly connected to the valve body, the valve body is located at a position where the water inlet channel is close to one end of the valve cavity, a side wall of the valve seat is attached to an inner wall of the water inlet channel, a water inlet is formed in the valve seat, one end of the connecting rod is hinged to the valve body, the other end of the connecting rod is fixedly connected to the valve flap, the valve flap is located at a side where the valve seat is close to the water outlet channel, and the valve flap is used for closing the water inlet.

By adopting the technical scheme, the valve seat is connected on the valve body, the valve seat is utilized to seal the water inlet channel, the valve seat is provided with the water passing port through which water flows, when the water flows into the valve cavity through the water inlet channel, the valve clack moves towards the direction far away from the valve seat under the action of the water flow, so that the water passing port is opened, and the water flows enter the valve cavity through the water passing port and then leaves the valve body through the water outlet channel; when no water flows into the valve cavity in the water inlet channel, the valve clack is abutted against one end of the valve seat close to the water outlet channel under the action of gravity, and the valve clack seals the water outlet.

Optionally, one side that the disk seat was kept away from to the connecting rod is provided with the torsional spring, one of them link of torsional spring with valve body fixed connection, another link of torsional spring with the connecting rod butt, the soon of torsional spring to with the articulated axis of connecting rod is parallel.

Through adopting above-mentioned technical scheme, fixed connection torsional spring on the valve body, a link and valve body fixed connection of torsional spring, another link and the connecting rod butt of torsional spring utilize the torsional spring to restrict the rotation of connecting rod, improve the compactness of being connected between valve clack and the disk seat.

Optionally, a bolt penetrates through the connecting rod and is in threaded connection with the valve clack.

Through adopting above-mentioned technical scheme, utilize the bolt to be connected valve clack and connecting rod, the valve clack is dismantled conveniently, improves the convenience of check valve maintenance.

Optionally, the cross-section of inlet channel perpendicular to rivers direction is circular, clearance mechanism includes gag lever post, installation pole, axis of rotation, helical blade and two brushes, the gag lever post is located the disk seat is kept away from one side of outlet channel, the gag lever post with the lateral wall sliding connection of inlet channel, the axis of rotation is worn to establish on the gag lever post, the axis of rotation with the coaxial setting of inlet channel, the axis of rotation with the gag lever post rotates to be connected, the installation pole cover is established in the axis of rotation, the axis of rotation with installation pole fixed connection, the installation pole is located the gag lever post is close to one side of disk seat, two brushes fixed connection respectively are in the both ends of installation pole, the brush is used for right the disk seat is close to the terminal surface of outlet channel is cleared up, the coaxial fixed connection of helical blade is in the axis of rotation is kept away from the one end of disk seat.

Through adopting above-mentioned technical scheme, when rivers flow to the valve pocket through the inlet channel, the gag lever post slides to the direction of being close to the disk seat under the effect of rivers, when gag lever post and disk seat butt, the installation pole is located one side that the disk seat is close to the exhalant canal, two brushes all are close to the terminal surface butt of exhalant canal with the disk seat, the bolt blade rotates under the effect of rivers, the bolt blade rotates and drives rather than coaxial fixed connection's installation pole and rotate, the installation pole rotates and drives the brush and clear up the disk seat, thereby reduce because of the disk seat with the fitting surface of valve clack attached to have impurity and influence the possibility of check valve working effect.

Optionally, one end of the rotating shaft close to the valve seat is fixedly connected with a ball head.

Through adopting above-mentioned technical scheme, be close to the one end fixed connection bulb of disk seat at the axis of rotation, make bulb and valve clack butt to reduce the frictional force that the valve clack receives, improve the life of valve clack.

Optionally, a spring washer for abutting against the valve seat is fixedly connected to an end surface of the valve flap close to the valve seat.

Through adopting above-mentioned technical scheme, fixed connection spring washer on the valve clack, when the valve clack seals the disk seat, spring washer and disk seat butt improve the valve clack and to the closed effect of delivery port.

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

1. the valve body is connected with the cleaning mechanism, and the cleaning mechanism is used for cleaning the non-return mechanism, so that the possibility that the non-return mechanism cannot prevent water in the water outlet channel from flowing back into the water inlet channel due to impurities attached to the non-return mechanism is reduced;

2. the valve body is fixedly connected with the torsion spring, one connecting end of the torsion spring is fixedly connected with the valve body, the other connecting end of the torsion spring is abutted against the connecting rod, and the torsion spring is utilized to limit the rotation of the connecting rod, so that the tightness of the connection between the valve clack and the valve seat is improved;

3. through utilizing the bolt to be connected valve clack and connecting rod, the valve clack is dismantled conveniently, improves the convenience of check valve maintenance.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a schematic view of the structure of the check mechanism portion in the embodiment of the present application;

fig. 3 is a schematic structural diagram of a cleaning mechanism portion in an embodiment of the present application.

Reference numerals: 100. a valve body; 110. a valve cavity; 120. a water inlet channel; 130. a water outlet channel; 200. a non-return mechanism; 210. a valve seat; 211. water passing holes; 220. a valve clack; 230. a connecting rod; 240. a torsion spring; 250. a bolt; 260. a spring washer; 300. a cleaning mechanism; 310. a limiting rod; 320. mounting a rod; 330. a rotating shaft; 340. a helical blade; 350. a brush; 360. a ball head.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses high-pressure seal check valve. Referring to fig. 1 and 2, a high pressure sealing check valve includes a valve body 100, a valve cavity 110, an inlet channel 120 and an outlet channel 130 are formed in the valve body 100, the inlet channel 120 and the outlet channel 130 are respectively located at two sides of the valve cavity 110, the valve cavity 110 is communicated with the outside of the valve body 100 through the inlet channel 120 and the outlet channel 130, the cross sections of the inlet channel 120 and the outlet channel 130 perpendicular to the water flow direction are both circular, and the inlet channel 120 and the outlet channel 130 are coaxially arranged. The valve body 100 is internally provided with a check mechanism 200, and the flow direction of water in the valve cavity 110 of the check mechanism 200 is utilized for limiting; the cleaning mechanism 300 is installed in the water inlet channel 120, and the cleaning mechanism 300 is used for cleaning the check mechanism 200, so that the possibility that the check mechanism 200 cannot prevent water in the water outlet channel 130 from flowing back into the water inlet channel 120 due to impurities attached to the check mechanism 200 is reduced.

Referring to fig. 1 and 2, the check mechanism 200 includes a valve seat 210, the valve seat 210 is a cylindrical structure, the valve seat 210 is disposed coaxially with the water inlet channel 120, an outer wall of the valve seat 210 is attached to a side wall of the water inlet channel 120, the valve seat 210 is located at an end of the water inlet channel 120 close to the valve cavity 110, the valve seat 210 is fixedly connected to the valve body 100, and a water passing port 211 for water to pass through is formed in the valve seat 210. The valve clack 220 is installed on one side of the valve seat 210 close to the valve cavity 110, the valve clack 220 is of a cylindrical structure, and the diameter of the valve clack 220 is larger than that of the water passing opening 211. The valve flap 220 is installed on the valve body 100 through a connecting rod 230, one end of the connecting rod 230 is hinged with the valve body 100, and the connecting rod 230 is horizontally arranged with the hinge axis of the valve body 100 and is vertical to the water flow direction. The other end of the connecting rod 230 is provided with a bolt 250, and the bolt 250 is screwed at one end of the valve clack 220 far away from the valve seat 210. When water flows into the valve cavity 110 from the water inlet passage 120, the valve flap 220 moves away from the valve seat 210 under the action of the water flow, so as to open the water passing opening 211, and the water flows into the valve cavity 110 through the water passing opening 211 and then leaves the valve body 100 through the water outlet passage 130; when no water flows into the valve chamber 110 from the inlet channel 120, the valve flap 220 abuts against the end of the valve seat 210 close to the outlet channel 130 under the action of gravity, and the valve flap 220 closes the outlet.

Referring to fig. 1 and 2, a spring washer 260 for abutting against the valve seat 210 is fixedly connected to an end surface of the valve flap 220 close to the valve seat 210, and when the valve flap 220 closes the valve seat 210, the spring washer 260 abuts against the valve seat 210, thereby improving a closing effect of the valve flap 220 on the water outlet.

Referring to fig. 1 and 2, a torsion spring 240 is mounted on the valve body 100, the torsion spring 240 is located on a side of the connecting rod 230 away from the valve seat 210, one connecting end of the torsion spring 240 is fixedly connected with the valve body 100, the other connecting end of the torsion spring 240 abuts against the connecting rod 230, and the rotation direction of the torsion spring 240 is parallel to the hinge axis of the connecting rod 230. The torsion spring 240 is abutted to one end of the connecting rod 230, which is far away from the valve seat 210, so that the torsion spring 240 limits the rotation of the connecting rod 230, thereby limiting the movement of the valve flap 220 and improving the tightness of the connection between the valve flap 220 and the valve seat 210.

Referring to fig. 1 and 3, the cleaning mechanism 300 includes a limiting rod 310, the limiting rod 310 is located on one side of the valve seat 210 away from the water outlet channel 130, two ends of the limiting rod 310 are slidably connected to the side wall of the water inlet channel 120, and the length direction of the limiting rod 310 is perpendicular to the axis of the water inlet channel 120. The rotation shaft 330 penetrates through the limiting rod 310, and the rotation shaft 330 is rotatably connected with the limiting rod 310. The rotating shaft 330 is coaxially and fixedly connected with a helical blade 340, and the blade of the bolt 250 is positioned at one side of the limiting rod 310 far away from the valve seat 210. The rotating shaft 330 is further sleeved with an installation rod 320, the installation rod 320 is fixedly connected with the rotating shaft 330, and the installation rod 320 is located on one side, close to the valve seat 210, of the limiting rod 310. The length direction of the mounting rod 320 is perpendicular to the axis of rotation 330 of the rotating shaft 330, and both ends of the mounting rod 320 in the length direction are fixedly connected with brushes 350. When the stopper rod 310 abuts against the end of the valve seat 210 away from the water outlet channel 130, the brush 350 abuts against the end of the valve seat 210 close to the water outlet channel 130.

When water flows into the valve cavity 110 through the water inlet channel 120, the limiting rod 310 slides towards the direction close to the valve seat 210 under the action of the water flow, after the limiting rod 310 abuts against the valve seat 210, the two brushes 350 abut against the end face, close to the water outlet channel 130, of the valve seat 210, the bolt 250 rotates under the action of the water flow, the bolt 250 rotates to drive the mounting rod 320 which is coaxially and fixedly connected with the bolt 250 to rotate, and the mounting rod 320 rotates to drive the brushes 350 to clean the valve seat 210. When no water flows into the valve chamber 110 through the inlet channel 120, the valve flap 220 pushes the rotating shaft 330 to move during the movement toward the valve seat 210, so that the rotating shaft 330 moves into the outlet channel 130.

Referring to fig. 1 and 3, a ball 360 is fixedly connected to one end of the rotating shaft 330, which is close to the water outlet channel 130, and the ball 360 is fixedly connected to the rotating shaft 330, so that the ball 360 abuts against the valve flap 220, thereby reducing the friction force applied to the valve flap 220 and prolonging the service life of the valve flap 220.

The implementation principle of this application embodiment a high pressure seal check valve does: by connecting the cleaning mechanism 300 to the valve body 100, the valve seat 210 is cleaned by the cleaning mechanism 300 while water flows into the valve chamber 110 through the water inlet passage 120, thereby reducing the possibility that the valve seat 210 cannot prevent the water in the water outlet passage 130 from flowing back into the water inlet passage 120 due to impurities adhering thereto.

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 high-pressure-sealing check valve is characterized in that: the cleaning device comprises a valve body (100), a check mechanism (200) and a cleaning mechanism (300) for cleaning impurities attached to the surface of the check mechanism (200), wherein a valve cavity (110), a water inlet channel (120) and a water outlet channel (130) are formed in the valve body (100), the water inlet channel (120) and the water outlet channel (130) are communicated with the valve cavity (110), the check mechanism (200) is connected with the valve body (100), the check mechanism (200) is used for sealing the water inlet channel (120), and the cleaning mechanism (300) is connected with the valve body (100).

2. The high pressure, pressure-sealing check valve of claim 1, wherein: the check mechanism (200) comprises a valve seat (210), a valve clack (220) and a connecting rod (230), the valve seat (210) is fixedly connected with the valve body (100), the valve body (100) is located at a position where the water inlet channel (120) is close to one end of the valve cavity (110), the side wall of the valve seat (210) is attached to the inner wall of the water inlet channel (120), a water passing port (211) is formed in the valve seat (210), one end of the connecting rod (230) is hinged to the valve body (100), the other end of the connecting rod (230) is fixedly connected with the valve clack (220), the valve clack (220) is located at one side, close to the water outlet channel (130), of the valve seat (210), and the valve clack (220) is used for sealing the water passing port (211).

3. A high pressure, pressure-sealing check valve as claimed in claim 2, wherein: one side of the connecting rod (230) far away from the valve seat (210) is provided with a torsion spring (240), one connecting end of the torsion spring (240) is fixedly connected with the valve body (100), the other connecting end of the torsion spring (240) is abutted against the connecting rod (230), and the rotating direction of the torsion spring (240) is parallel to the hinge axis of the connecting rod (230).

4. A high pressure, pressure sealing check valve as claimed in claim 3, wherein: the connecting rod (230) is provided with a bolt (250) in a penetrating mode, and the bolt (250) is in threaded connection with the valve clack (220).

5. A high pressure, pressure-sealing check valve as claimed in claim 2, wherein: the cross-section of inlet channel (120) perpendicular to rivers direction is circular, clearance mechanism (300) include gag lever post (310), installation pole (320), axis of rotation (330), helical blade (340) and two brush (350), gag lever post (310) are located valve seat (210) is kept away from one side of outlet channel (130), gag lever post (310) with the lateral wall sliding connection of inlet channel (120), axis of rotation (330) wear to establish on gag lever post (310), axis of rotation (330) with the coaxial setting of inlet channel (120), axis of rotation (330) with gag lever post (310) rotates to be connected, installation pole (320) cover is established on axis of rotation (330), axis of rotation (330) with installation pole (320) fixed connection, installation pole (320) are located gag lever post (310) is close to one side of valve seat (210), two brush (350) fixed connection respectively the both ends of installation pole (320), axis of rotation (350) are used for right valve seat (210) are close to the coaxial connection of outlet channel (130) carry out the coaxial brush (350) terminal surface is kept away from the spiral blade (210) the terminal surface of outlet channel (340).

6. The high pressure, pressure-sealing check valve of claim 5, wherein: one end of the rotating shaft (330) close to the valve seat (210) is fixedly connected with a ball head (360).

7. The high pressure, pressure-sealing check valve of claim 6, wherein: and a spring washer (260) which is used for abutting against the valve seat (210) is fixedly connected to the end surface, close to the valve seat (210), of the valve clack (220).