CN214331593U

CN214331593U - Ultra-low temperature superhigh pressure metal seal over-and-under type check valve

Info

Publication number: CN214331593U
Application number: CN202023114259.9U
Authority: CN
Inventors: 王建友; 葛红森; 薛明伟
Original assignee: Yancheng Ruide Petrochemical Machinery Co ltd
Current assignee: Yancheng Ruide Petrochemical Machinery Co ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-10-01
Anticipated expiration: 2030-12-22

Abstract

The utility model discloses an ultra-low temperature superhigh pressure metal seal over-and-under type check valve, including valve body, filter screen and bolt, the top of valve body is connected with the valve gap, the inner wall connection of valve gap has fixing spring, fixing spring's one end is connected with the valve clack, the inner wall of valve body is fixed with the stopper, the fixed surface of stopper has the dead lever, the one end of dead lever is provided with the pivot, pivot through connection is in the inside of clamp splice, the surface connection of clamp splice has connecting spring, the one side at the stopper is connected to the filter screen. This ultra-low temperature superhigh pressure metal seal over-and-under type check valve's two sets of clamp splice pass through to constitute between connecting spring and the stopper elasticity linkage to two sets of clamp splices are connected through constituting between pivot and the dead lever to rotate, through pressing down the clamp splice, make the clamp splice rotate and tensile connecting spring, again with the filter screen clamp-in between two sets of clamp splices, so that play filterable effect to the medium of this equipment inside flow.

Description

Ultra-low temperature superhigh pressure metal seal over-and-under type check valve

Technical Field

The utility model relates to a check valve technical field specifically is an ultra-low temperature superhigh pressure metal seal over-and-under type check valve.

Background

The ultra-low temperature and ultra-high pressure metal sealing lifting check valve is a valve of which the opening and closing piece is a circular valve clack and acts by the self weight and the medium pressure to block the medium backflow. The check valve is an automatic valve, and mainly functions to prevent the reverse flow of a medium, prevent the reverse rotation of a pump and a driving motor, and discharge of a container medium, and is also used for a pipe for supplying an auxiliary system in which the pressure may rise to exceed the system pressure.

The ultra-low temperature superhigh pressure metal seal over-and-under type check valve on the market is various, but most ultra-low temperature superhigh pressure metal seal over-and-under type check valve is not convenient for filter the medium, when the medium that contains impurity passes through from the check valve is inside, the impurity that it contains can polymerize in the inside of check valve, causes the check valve to block up, for this reason needs improve existing equipment, satisfies the market demand.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an ultra-low temperature superhigh pressure metal seal lift check valve to solve the ultra-low temperature superhigh pressure metal seal lift check valve on the existing market that above-mentioned background art provided and be of a great variety, but most ultra-low temperature superhigh pressure metal seal lift check valve is not convenient for filter the medium, when the medium that contains impurity passes through from the check valve is inside, the impurity that it contains can polymerize in the inside of check valve, causes the problem of check valve jam.

In order to achieve the above object, the utility model provides a following technical scheme: an ultralow-temperature ultrahigh-pressure metal sealing lifting check valve comprises a valve body, a filter screen and a bolt, wherein the top of the valve body is connected with a valve cover, the inner wall of the valve cover is connected with a fixed spring, one end of the fixed spring is connected with a valve clack, a limiting block is fixed on the inner wall of the valve body, a fixed rod is fixed on the surface of the limiting block, one end of the fixed rod is provided with a rotating shaft, the rotating shaft is connected inside a clamping block in a penetrating manner, and the surface of the clamping block is connected with a connecting spring;

the filter screen is connected in one side of stopper, the outer wall connection of valve body has the sealing strip, one side of sealing strip is connected with the butt joint pipe, the outer wall connection of butt joint pipe has the fixture block, the fixed surface of fixture block has the fixed block, the through connection of bolt is in the inside of fixed block.

Preferably, the inner wall of the opening end of the valve clack is concave, the inner wall of the opening end of the valve clack is tangent to the outer wall of the fixed spring, and the valve clack and the valve cover form an elastic linkage structure through the fixed spring.

Preferably, the clamping blocks are provided with two groups, the two groups of clamping blocks form an elastic linkage structure through connecting springs and limiting blocks, and the two groups of clamping blocks form a rotary connection through a rotating shaft and a fixing rod.

Preferably, the sealing strip is made of rubber, and the size of the outer wall of the sealing strip is the same as that of the outer wall of the opening end of the valve body.

Preferably, the clamping blocks are arranged in two groups, the inner walls of the two groups of clamping blocks are tangent to the outer wall of the opening end of the butt joint pipe, and the two groups of clamping blocks are symmetrically distributed about the longitudinal middle parting line of the sealing strip.

Preferably, the inner wall of the fixing block is of a threaded structure, the connecting position of the fixing block and the clamping block is 90 degrees, and the fixing block is in threaded connection with the bolt.

Compared with the prior art, the beneficial effects of the utility model are that: this ultra-low temperature superhigh pressure metal seal over-and-under type check valve:

1. the open end inner wall of this equipment valve clack is the spill, and the open end inner wall of valve clack is tangent with fixed spring's outer wall to the valve clack passes through to constitute elastic linkage structure between fixed spring and the valve gap, and when the inside medium of this equipment passed through, the medium can jack-up the valve clack, and valve clack atress extrusion fixed spring, fixed spring compression absorbed pressure can prevent that valve clack jack-up from striking the valve gap, causes the damage to the valve gap, so that play absorbing effect between this equipment valve clack and the valve gap.

2. The clamping blocks of the equipment are provided with two groups, the two groups of clamping blocks form an elastic linkage structure between the connecting spring and the limiting block, the two groups of clamping blocks form a rotating connection between the rotating shaft and the fixing rod, the clamping blocks rotate and stretch the connecting spring by pressing the clamping blocks, and then the filter screen is clamped between the two groups of clamping blocks, so that the medium flowing inside the equipment can be filtered.

3. The inner wall of the fixture block of the equipment is tangent to the outer wall of the opening end of the butt joint pipe, the fixing block is in threaded connection with the bolt, the fixture block is clamped into the outer walls of the butt joint pipe and the valve body, then the sealing strip is clamped into the butt joint position of the butt joint pipe and the valve body, and the bolt penetrates through the inside of the fixing block to enable the two sets of fixture blocks to be connected, so that the equipment valve body and the butt joint pipe are in butt joint conveniently.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic view of the cross-sectional structure of the present invention;

fig. 3 is an enlarged schematic view of the a position of the present invention.

In the figure: 1. a valve body; 2. a valve cover; 3. fixing the spring; 4. a valve flap; 5. a limiting block; 6. fixing the rod; 7. a rotating shaft; 8. a clamping block; 9. a connecting spring; 10. filtering with a screen; 11. a sealing strip; 12. butt-joint pipes; 13. a clamping block; 14. a fixed block; 15. and (4) bolts.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: an ultra-low temperature and ultra-high pressure metal sealing lift check valve comprises a valve body 1, a valve cover 2, a fixed spring 3, a valve clack 4, a limit block 5, a fixed rod 6, a rotating shaft 7, a clamping block 8, a connecting spring 9, a filter screen 10, a sealing strip 11, a butt joint pipe 12, a clamping block 13, a fixed block 14 and a bolt 15, wherein the top of the valve body 1 is connected with the valve cover 2, the inner wall of the valve cover 2 is connected with the fixed spring 3, one end of the fixed spring 3 is connected with the valve clack 4, the inner wall of the open end of the valve clack 4 is concave, the inner wall of the open end of the valve clack 4 is tangent to the outer wall of the fixed spring 3, the valve clack 4 forms an elastic linkage structure through the fixed spring 3 and the valve cover 2, the damping effect is conveniently achieved between the valve clack 4 and the valve cover 2 through the installation of the fixed spring 3, the inner wall of the valve body 1 is fixed with the limit block 5, the fixed rod 6 is fixed on the surface of the limit block 5, a rotating shaft 7 is arranged at one end of the fixed rod 6, the rotating shaft 7 is connected to the inside of each clamping block 8 in a penetrating mode, two groups of clamping blocks 8 are arranged, an elastic linkage structure is formed between each two groups of clamping blocks 8 and the limiting block 5 through a connecting spring 9, the two groups of clamping blocks 8 are connected with the fixed rod 6 in a rotating mode through the rotating shaft 7, a filter screen 10 is clamped through the clamping blocks 8, a medium flowing in the equipment can be filtered conveniently, and the connecting springs 9 are connected to the surfaces of the clamping blocks 8;

the filter screen 10 is connected to one side of the limiting block 5, the outer wall of the valve body 1 is connected with a sealing strip 11, the sealing strip 11 is made of rubber, the size of the outer wall of the sealing strip 11 is the same as that of the outer wall of the opening end of the valve body 1, the butt joint of the valve body 1 and the butt joint pipe 12 is facilitated to play a sealing role through clamping of the sealing strip 11, one side of the sealing strip 11 is connected with the butt joint pipe 12, the outer wall of the butt joint pipe 12 is connected with two groups of clamping blocks 13, the inner walls of the two groups of clamping blocks 13 are tangent to the outer wall of the opening end of the butt joint pipe 12, the two groups of clamping blocks 13 are symmetrically distributed about the longitudinal middle parting line of the sealing strip 11, the limiting on the opening ends of the valve body 1 and the butt joint pipe 12 of the equipment is facilitated through clamping of the clamping blocks 13, the surface of the clamping blocks 13 is fixed with a fixing block 14, and the inner wall of the fixing block 14 is of a thread structure, and the joint of the fixed block 14 and the fixture block 13 is 90 degrees, the fixed block 14 and the bolt 15 form threaded connection, the bolt 15 penetrates through the inside of the fixed block 14, the butt joint between the butt joint pipe 12 and the valve body 1 of the device is facilitated, and the bolt 15 penetrates through the inside of the fixed block 14.

The working principle is as follows: when the ultralow temperature ultrahigh pressure metal sealing lifting check valve is used, firstly, the inner wall of the opening end of the valve clack 4 of the equipment is concave, the inner wall of the opening end of the valve clack 4 is tangent to the outer wall of the fixed spring 3, and the valve clack 4 and the valve cover 2 form an elastic linkage structure through the fixed spring 3, when a medium in the equipment passes through, the medium can jack up the valve clack 4, the valve clack 4 is stressed to extrude the fixed spring 3, the fixed spring 3 compresses to absorb pressure, the valve clack 4 can be prevented from jacking up to impact the valve cover 2 to damage the valve cover 2, so that the damping effect is achieved between the valve clack 4 and the valve cover 2 of the equipment, the clamping blocks 8 of the equipment are provided with two groups, the two groups of clamping blocks 8 form an elastic linkage structure through the connecting spring 9 and the limiting block 5, the two groups of clamping blocks 8 form a rotary connection through the rotating shaft 7 and the fixing rod 6, and the clamping blocks 8 are pressed, the clamping blocks 8 are rotated and stretched to connect the springs 9, then the filter screen 10 is clamped between the two sets of clamping blocks 8, so as to filter the medium flowing inside the device, the inner wall of the clamping block 13 of the device is tangent to the outer wall of the open end of the butt joint pipe 12, the fixing block 14 and the bolt 15 form a threaded connection, the clamping block 13 is clamped into the outer walls of the butt joint pipe 12 and the valve body 1, the sealing strip 11 is clamped into the butt joint of the butt joint pipe 12 and the valve body 1, the two sets of clamping blocks 13 are connected by penetrating the bolt 15 through the inside of the fixing block 14, so as to facilitate the butt joint between the valve body 1 and the butt joint pipe 12 of the device, and the content which is not described in detail in the description belongs to the prior art known by a person skilled in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides an ultra-low temperature superhigh pressure metal seal over-and-under type check valve, includes valve body (1), filter screen (10) and bolt (15), its characterized in that: the valve comprises a valve body (1), a valve cover (2) and a fixed spring (3), wherein the top of the valve body (1) is connected with the valve cover, the inner wall of the valve cover (2) is connected with the fixed spring (3), one end of the fixed spring (3) is connected with a valve clack (4), a limiting block (5) is fixed on the inner wall of the valve body (1), a fixed rod (6) is fixed on the surface of the limiting block (5), one end of the fixed rod (6) is provided with a rotating shaft (7), the rotating shaft (7) is connected inside a clamping block (8) in a penetrating mode, and the surface of the clamping block (8) is connected with a connecting spring (9);

one side at stopper (5) is connected in filter screen (10), the outer wall connection of valve body (1) has sealing strip (11), one side of sealing strip (11) is connected with butt joint pipe (12), the outer wall connection of butt joint pipe (12) has fixture block (13), the fixed surface of fixture block (13) has fixed block (14), the through connection of bolt (15) is in the inside of fixed block (14).

2. The ultra-low temperature ultra-high pressure metal-sealed lift check valve of claim 1, wherein: the inner wall of the opening end of the valve clack (4) is concave, the inner wall of the opening end of the valve clack (4) is tangent to the outer wall of the fixed spring (3), and the valve clack (4) and the valve cover (2) form an elastic linkage structure through the fixed spring (3).

3. The ultra-low temperature ultra-high pressure metal-sealed lift check valve of claim 1, wherein: the clamping blocks (8) are provided with two groups, the two groups of clamping blocks (8) form an elastic linkage structure through connecting springs (9) and limiting blocks (5), and the two groups of clamping blocks (8) form a rotating connection with the fixing rod (6) through rotating shafts (7).

4. The ultra-low temperature ultra-high pressure metal-sealed lift check valve of claim 1, wherein: the sealing strip (11) is made of rubber, and the size of the outer wall of the sealing strip (11) is the same as that of the outer wall of the opening end of the valve body (1).

5. The ultra-low temperature ultra-high pressure metal-sealed lift check valve of claim 1, wherein: the two groups of clamping blocks (13) are arranged, the inner walls of the two groups of clamping blocks (13) are tangent to the outer wall of the opening end of the butt joint pipe (12), and the two groups of clamping blocks (13) are symmetrically distributed about the longitudinal middle parting line of the sealing strip (11).

6. The ultra-low temperature ultra-high pressure metal-sealed lift check valve of claim 1, wherein: the inner wall of the fixing block (14) is of a threaded structure, the connecting position of the fixing block (14) and the fixing block (13) is 90 degrees, and the fixing block (14) is in threaded connection with the bolt (15).