CN217951320U

CN217951320U - Primary-secondary type reverse pressure relief type check valve

Info

Publication number: CN217951320U
Application number: CN202221859343.XU
Authority: CN
Inventors: 李�浩; 顾国才; 李�荣; 颜冰; 孙云
Original assignee: Yancheng Dagang Petroleum Tools Factory Co ltd
Current assignee: Yancheng Dagang Petroleum Tools Factory Co ltd
Priority date: 2022-07-19
Filing date: 2022-07-19
Publication date: 2022-12-02
Anticipated expiration: 2032-07-19

Abstract

The utility model discloses a reverse pressure release formula check valve of primary and secondary type in check valve field, including the valve body shell, seted up the mounting groove between the wall central point puts about the valve body shell, both sides opening part fixed mounting has the closing plate about the mounting groove, has seted up the through-hole between the wall central point puts about the closing plate, and top closing plate roof is located its through-hole opening part fixed mounting and has the feed liquor to lead to fight. The utility model discloses a be provided with the reverse pressure release formula check valve non return structure of reliable primary and secondary type, be provided with the sealed valve clack that a slip set up promptly, and sealed valve clack bottom is the symmetry form and is provided with two springs, constitutes one-way non return structure, and its non return structure can carry out reliable self-adaptation non return work, and sealed valve clack top is provided with sealed embedding piece simultaneously, can cooperate sealed valve clack to play the good sealed effect of closing of valve when the medium refluence, and whole non return sealing performance is better.

Description

Primary-secondary type reverse pressure relief type check valve

Technical Field

The utility model relates to a check valve field especially relates to a reverse pressure release formula check valve of primary and secondary type.

Background

The check valve is a valve with a circular valve clack and acts by self weight and medium pressure to block the medium from flowing backwards. 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. The lift check valve is similar in structure to the stop valve and only lacks a valve rod that drives the valve flap. The medium flows in from the inlet end (lower side) and flows out from the outlet end (upper side). The valve is opened when the inlet pressure is greater than the sum of the weight of the flap and its flow resistance. Otherwise, the valve is closed when the medium flows backwards. Swing check valves have a flap that is tilted and can rotate about an axis, and operate on a similar principle to lift check valves.

At present, when the reverse pressure release formula check valve of current primary and secondary type was used, it lacked the efficient and goes out liquid structure, carries out the play liquid during operation of the reverse pressure release formula check valve of primary and secondary type, and it goes out liquid efficiency lower, and it lacked the reverse pressure release formula check valve non return structure of reliable primary and secondary type simultaneously, and its non return structure can't carry out reliable self-adaptation non return work, and it can't play the valve when the medium refluxes and well seal and close promptly, and whole non return sealing performance is relatively poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the reverse pressure release formula check valve of current primary and secondary type lacks efficient and goes out liquid structure and reliable non return structure.

In order to solve the technical problem, the utility model discloses a technical scheme be: provides a master-slave type reverse pressure relief type check valve, which comprises a valve body shell, wherein an installation groove is arranged between the central positions of the upper side wall and the lower side wall of the valve body shell, sealing plates are fixedly arranged at openings on the upper side and the lower side of the mounting groove, a through hole is arranged between the central positions of the upper side wall and the lower side wall of the sealing plate, a liquid inlet guide hopper is fixedly arranged on the top wall of the sealing plate at the opening of the through hole to play a role in guiding liquid inlet of a check valve, a liquid outlet guide hopper is fixedly arranged on the bottom wall of the sealing plate at the opening of the through hole to play a role in guiding liquid outlet of the check valve, connecting rods are symmetrically and fixedly connected between the side walls of the two opposite sides of the sealing plate, the outer side wall above the connecting rod is connected with a sliding block in a sliding way, a spring is fixedly connected between the bottom wall of the sliding block and the bottom wall of the lower sealing plate, the same sealing valve clack is fixedly connected between the side walls of the two sliding blocks on the opposite sides, the sealing valve clack is designed to be an elastic lifting structure and can work in a one-way non-return structure, namely, after the liquid is fed through the upper liquid inlet guide hopper, the sealing embedded block and the sealing valve clack are extruded and pressed downwards, the opening of the upper through hole is opened to form one-way diversion and transmission of the medium, after the upper liquid inlet guide hopper stops liquid inlet, the sealing embedded block and the sealing valve clack reset under the action of spring force to seal the opening of the upper through hole, meanwhile, the backflow liquid can tightly support the sealing embedded block and the sealing valve clack at the opening of the through hole at the upper part, the sealing effect is further enhanced, the one-way non-return function is realized, the non-return structure can perform reliable self-adaptive non-return work, the center position of the top wall of the sealing valve clack is fixedly connected with a sealing embedded block, can cooperate sealed valve clack to play the good sealed effect of closing of valve when the medium refluence, whole non return sealing performance is better.

Preferably, the sealing embedding block is slidably connected in the through hole above, the top wall of the sealing valve clack is slidably connected with the bottom wall of the upper sealing plate, so that the top through hole can be well sealed, the top wall of the sliding block is slidably connected with the bottom wall of the upper sealing plate, and the spring is slidably connected with a connecting rod corresponding to one side of the spring.

Preferably, valve body shell top both sides wall is symmetry fixedly connected with mount pad, be the symmetry form around between the both sides wall about the mount pad and seted up the mounting hole, can cooperate the mounting to carry out the installation of whole check valve, mount pad bottom wall intermediate position corresponds one side lateral wall fixedly connected with reinforcing block with the valve body shell, plays the connection reinforcement effect between mount pad and the valve body shell.

Preferably, the feed liquor guide fill bottom wall corresponds the top through-hole and has seted up the feed liquor groove, feed liquor guide fill roof central point puts and has seted up the inlet, the inlet intercommunication has the feed liquor groove, feed liquor guide fill roof is located inlet opening part fixed mounting has the feed liquor pipe, and accessible feed liquor pipe carries out the feed liquor work of whole check valve.

Preferably, the liquid outlet guide hopper top wall corresponds the below through-hole and has seted up the drain tank, liquid outlet guide hopper both sides wall is the symmetry and has seted up the liquid outlet, two the liquid outlet intercommunication has the drain tank, liquid outlet guide hopper both sides wall is located its one side liquid outlet opening part fixed mounting that corresponds has the drain pipe, is provided with the efficient liquid structure, and the below goes out liquid guide hopper both sides promptly and has all seted up the liquid outlet, and has the drain pipe in liquid outlet opening part fixed mounting, adopts two liquid structural design, carries out the play liquid during operation of the reverse pressure release formula check valve of primary and secondary type, and it is higher to go out liquid efficiency.

The beneficial effects of the utility model are as follows:

1. the utility model is provided with an efficient liquid outlet structure, namely, both sides of the lower liquid outlet guide hopper are provided with liquid outlets, and the liquid outlet opening is fixedly provided with a liquid outlet pipe, and the liquid outlet efficiency is higher when the liquid outlet work of the master-slave type reverse pressure relief type check valve is carried out by adopting the design of a double liquid outlet structure;

2. the utility model discloses a be provided with the reverse pressure release formula check valve non return structure of reliable primary and secondary type, be provided with the sealed valve clack that a slip set up promptly, and sealed valve clack bottom is the symmetry form and is provided with two springs, constitutes one-way non return structure, and its non return structure can carry out reliable self-adaptation non return work, and sealed valve clack top is provided with sealed embedding piece simultaneously, can cooperate sealed valve clack to play the good sealed effect of closing of valve when the medium refluence, and whole non return sealing performance is better.

Drawings

FIG. 1 is an overall perspective view of the present invention;

FIG. 2 is a perspective view of the check structure of the present invention;

FIG. 3 is a perspective view of the non-return structure of the present invention without the spring;

FIG. 4 is a perspective view of the liquid outlet structure of the present invention;

fig. 5 is a perspective view of the liquid inlet structure of the present invention.

In the figure: 1. a valve body housing; 2. mounting grooves; 3. a sealing plate; 4. a through hole; 5. a connecting rod; 6. a slider; 7. sealing the valve clack; 8. a spring; 9. sealing the embedded block; 10. liquid inlet guide hopper; 11. a liquid outlet guide hopper; 12. a mounting base; 13. a liquid inlet tank; 14. a liquid inlet; 15. a liquid inlet pipe; 16. a liquid outlet groove; 17. a liquid outlet; 18. a liquid outlet pipe; 19. mounting holes; 20. and a reinforcing block.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

Referring to fig. 1, 2 and 3, a master-slave type reverse pressure relief check valve comprises a valve body housing 1, a mounting groove 2 is arranged between the central positions of the upper and lower side walls of the valve body housing 1, sealing plates 3 are fixedly arranged at the upper and lower openings of the mounting groove 2, a through hole 4 is arranged between the central positions of the upper and lower side walls of the sealing plate 3, a liquid inlet guide hopper 10 is fixedly arranged on the top wall of the upper sealing plate 3 at the opening of the through hole 4 to guide the liquid inlet of the check valve, a liquid outlet guide hopper 11 is fixedly arranged on the bottom wall of the lower sealing plate 3 at the opening of the through hole 4 to guide the liquid outlet of the check valve, a connecting rod 5 is symmetrically and fixedly connected between the opposite side walls of the two sealing plates 3, a slide block 6 is slidably connected to the upper outer side wall of the connecting rod 5, a spring 8 is fixedly connected between the bottom wall of the slide block 6 and the bottom wall of the lower sealing plate 3, and a same sealing valve flap 7 is fixedly connected between the opposite side walls of the two slide blocks 6, the sealing valve clack 7 is designed to be an elastic lifting structure, and can work in a one-way check structure, namely after liquid is fed into the upper liquid inlet guide hopper 10, the sealing embedded block 9 and the sealing valve clack 7 are extruded to be pressed downwards, the opening of the upper through hole 4 is opened to form one-way medium diversion transmission, after the upper liquid inlet guide hopper 10 stops feeding the liquid, the sealing embedded block 9 and the sealing valve clack 7 are reset under the action of the elastic force of a spring 8, the opening of the upper through hole 4 is sealed, meanwhile, the backflow liquid can tightly support the sealing embedded block 9 and the sealing valve clack 7 at the opening of the upper through hole 4 to play a role in further strengthening the sealing, so that the one-way check function is realized, the check structure can reliably and adaptively work, the sealing embedded block 9 is fixedly connected at the center position of the top wall of the sealing valve clack 7, and the sealing valve clack 7 can be matched to play a good sealing and closing effect when the medium flows backwards, whole non return sealing performance is better, and sealed embedding piece 9 sliding connection has top closing plate 3 diapalls in the through-hole 4 of top, 7 roof sliding connection of sealing valve clack, plays the good sealed effect of top through-

hole

4, and 6 roof sliding connection of slider have top closing plate 3 diapalls, and sliding connection has its connecting rod 5 that corresponds one side in spring 8.

As shown in fig. 2, 4 and 5, a liquid inlet groove 13 is formed in the bottom wall of the liquid inlet guide hopper 10 corresponding to the upper through hole 4, a liquid inlet 14 is formed in the center position of the top wall of the liquid inlet guide hopper 10, the liquid inlet 14 is communicated with the liquid inlet groove 13, a liquid inlet pipe 15 is fixedly installed at the position, located at the opening of the liquid inlet 14, of the top wall of the liquid inlet guide hopper 10, liquid inlet work of the integral check valve can be performed through the liquid inlet pipe 15, a liquid outlet groove 16 is formed in the position, corresponding to the lower through hole 4, of the top wall of the liquid outlet guide hopper 11, liquid outlets 17 are symmetrically formed in the two side walls of the liquid outlet guide hopper 11, the two liquid outlets 17 are communicated with the liquid outlet groove 16, a liquid outlet pipe 18 is fixedly installed at the position, located at the opening of the liquid outlet 17 at the corresponding side of the two side walls of the liquid outlet guide hopper 11, and a high-efficiency liquid outlet structure is adopted, and the design of the master-slave reverse pressure release type check valve is performed.

As shown in figure 1, the two side walls above the valve body shell 1 are symmetrically and fixedly connected with the installation seat 12, the installation hole 19 is symmetrically formed between the upper side wall and the lower side wall of the installation seat 12 in a front-back manner, the installation of the whole check valve can be carried out by matching with a fixing piece, and the middle position of the bottom wall of the installation seat 12 and the outer side wall of one side, corresponding to the valve body shell 1, of the installation seat 12 are fixedly connected with a reinforcing block 20, so that the connection and reinforcement effect between the installation seat 12 and the valve body shell 1 is achieved.

The utility model discloses when using, 1 top both sides wall of valve body shell is symmetry fixedly connected with mount pad 12, the symmetry form has seted up mounting hole 19 around being between the both sides wall about mount pad 12, can cooperate the mounting to carry out the installation of whole check valve, accessible feed liquor pipe 15 carries out the feed liquor work of whole check valve, sealed valve clack 7 is the design of elasticity elevation structure, can carry out one-way non return structure work, promptly after top feed liquor guide fill 10 feed liquor, the sealed embedding piece of extrusion 9 pushes down with sealed valve clack 7, open top through-hole 4 openings, form the transmission of medium one-way water conservancy diversion, and top feed liquor guide fill 10 stops behind the feed liquor, sealed embedding piece 9 resets under the effect of spring 8 elasticity with sealed valve clack 7, seal top through-hole 4 openings, the liquid of backward flow can support sealed embedding piece 9 and sealed valve clack 7 in top through-hole 4 openings simultaneously, play further enhancement sealing effect, realize one-way non return function, its non return structure can carry out reliable self-adaptation non return work, be provided with the efficient structure in addition, it goes out liquid outlet below liquid guide 11 both sides and has all seted up liquid outlet 17, and has liquid outlet 17 fixed mounting in liquid outlet, adopt the outlet 18, the design of two-way check valve structure, the reverse work efficiency of its work is higher.

The above-mentioned only be the embodiment of the present invention, not consequently the restriction of the patent scope of the present invention, all utilize the equivalent structure or equivalent flow transform made of the content of the specification and the attached drawings, or directly or indirectly use in other relevant technical fields, all including in the same way the patent protection scope of the present invention.

Claims

1. The utility model provides a reverse pressure release formula check valve of primary and secondary type, includes valve body shell (1), its characterized in that: a mounting groove (2) is formed between the central positions of the upper side wall and the lower side wall of the valve body shell (1), and sealing plates (3) are fixedly mounted at openings on the upper side and the lower side of the mounting groove (2);

a through hole (4) is formed between the central positions of the upper side wall and the lower side wall of the sealing plate (3), a liquid inlet guide hopper (10) is fixedly installed on the top wall of the upper sealing plate (3) at the opening of the through hole (4), and a liquid outlet guide hopper (11) is fixedly installed on the bottom wall of the lower sealing plate (3) at the opening of the through hole (4);

two be symmetry fixedly connected with connecting rod (5) between closing plate (3) one side lateral wall in opposite directions, connecting rod (5) top lateral wall sliding connection has slider (6), fixedly connected with spring (8), two between slider (6) diapire and below closing plate (3) diapire same sealing valve clack (7) of fixedly connected with between slider (6) one side lateral wall in opposite directions, sealing valve clack (7) roof central point fixedly connected with seals and inlays piece (9).

2. The reverse pressure-relief type check valve of claim 1, wherein: the sealing embedded block (9) is connected in the through hole (4) above in a sliding manner, the top wall of the sealing valve clack (7) is connected with the bottom wall of the upper sealing plate (3) in a sliding manner, the top wall of the sliding block (6) is connected with the bottom wall of the upper sealing plate (3) in a sliding manner, and the spring (8) is connected with the connecting rod (5) on one corresponding side in a sliding manner.

3. The reverse pressure relief type check valve of claim 1, wherein: the valve body shell (1) top both sides wall is symmetry fixedly connected with mount pad (12), be around being between the both sides wall about mount pad (12) symmetry form seted up mounting hole (19), mount pad (12) diapire intermediate position corresponds one side lateral wall fixedly connected with reinforcing block (20) with valve body shell (1).

4. The reverse pressure relief type check valve of claim 1, wherein: the feed liquor guide hopper (10) is characterized in that a feed liquor groove (13) is formed in the bottom wall of the feed liquor guide hopper (10) corresponding to the through hole (4) in the upper portion, a liquid inlet (14) is formed in the center of the top wall of the feed liquor guide hopper (10), and the liquid inlet (14) is communicated with the feed liquor groove (13).

5. The reverse pressure relief type check valve of claim 1, wherein: the top wall of the liquid inlet guide hopper (10) is fixedly provided with a liquid inlet pipe (15) at the opening of the liquid inlet (14).

6. The reverse pressure relief type check valve of claim 1, wherein: liquid outlet grooves (16) are formed in the top wall of the liquid outlet guide hopper (11) corresponding to the through hole (4) in the lower portion, liquid outlet holes (17) are symmetrically formed in the two side walls of the liquid outlet guide hopper (11), and the two liquid outlet holes (17) are communicated with the liquid outlet grooves (16).

7. The reverse pressure relief type check valve of claim 1, wherein: and liquid outlet pipes (18) are fixedly arranged on the two side walls of the liquid outlet guide hopper (11) at the openings of the liquid outlets (17) on the corresponding sides.