CN215059760U

CN215059760U - Socket check valve

Info

Publication number: CN215059760U
Application number: CN202121687627.0U
Authority: CN
Inventors: 陈博静
Original assignee: Ningbo Boye Plastic Valve Co ltd
Current assignee: Ningbo Boye Plastic Valve Co ltd
Priority date: 2021-07-23
Filing date: 2021-07-23
Publication date: 2021-12-07
Anticipated expiration: 2031-07-23

Abstract

The utility model discloses a socket joint formula check valve, which comprises a valve body, be provided with the nut on the valve body, be provided with the joint on the nut, the inside of valve body is provided with the piston, be provided with the gland on the piston, the inside of valve body is provided with first spring, be provided with O type circle on the gland, O type circle and joint contact, one of them the inside fixedly connected with fixing base that connects, the fixedly connected with supporting shoe on the fixing base, the contact has the connecting plate on the supporting shoe, connecting plate and fixing base contact, the inside fixedly connected with fixed block that connects. The utility model discloses an effect of design connecting plate can drive the connecting plate when rivers pass through and remove to can make the water of connecting plate lower extreme pass through, and unable downstream when connecting plate and supporting shoe contact, thereby can prevent the water reflux of connecting plate upper end, thereby make the backflow-preventing effect of check valve better.

Description

Socket check valve

Technical Field

The utility model relates to a check valve technical field specifically is a socket joint formula check valve.

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. Present socket joint formula check valve is when using, and the backflow prevention effect is not ideal enough to the connected mode of joint and pipeline is comparatively loaded down with trivial details, influences work efficiency.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a socket joint formula check valve has solved the problem that the backflow prevention effect is not ideal enough, has still solved the comparatively loaded down with trivial details problem of the connected mode of joint with the pipeline.

In order to achieve the above object, the utility model provides a following technical scheme: a socket check valve comprises a valve body, wherein a nut is arranged on the valve body, a joint is arranged on the nut, a piston is arranged inside the valve body, a gland is arranged on the piston, a first spring is arranged inside the valve body, an O-shaped ring is arranged on the gland and is in contact with the joint, a fixed seat is fixedly connected inside one of the joints, a supporting block is fixedly connected on the fixed seat, a connecting plate is in contact with the supporting block and is in contact with the fixed seat, a fixed block is fixedly connected inside the joint, a fixed rod is fixedly connected on the fixed block, a second spring is arranged outside the fixed rod, a bracket is sleeved outside the fixed rod in a sliding manner and is fixedly connected with the connecting plate, a connecting pipe is in contact with the joint, and a limiting seat is fixedly connected on the connecting pipe, the bolt is connected to the inside of the limiting seat through threads, the positioning seat is sleeved on the outer side of the bolt in a sliding mode, the positioning seat is fixedly connected with the joint, the limiting groove is formed in the bolt, the limiting rod is connected to the inside of the limiting groove in a sliding mode, the limiting block is sleeved on the outer side of the limiting rod in a sliding mode, the limiting block is fixedly connected with the positioning seat, a third spring is arranged on the outer side of the limiting rod, a limiting ring is fixedly connected to the limiting rod, and the limiting ring is in contact with the positioning seat.

Preferably, one end of the second spring is in contact with the fixed block, and the other end of the second spring is in contact with the bracket.

Preferably, the bracket is provided with a sliding groove, and the inside of the sliding groove is slidably connected with a fixing rod.

Preferably, the positioning seat is provided with a through groove, and a bolt is slidably connected inside the through groove.

Preferably, one end of the third spring is welded with the limiting block, and the other end of the third spring is welded with the limiting ring.

Preferably, the number of the supporting blocks is two, and the two supporting blocks are both in contact with the connecting plate.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses an effect of design connecting plate can drive the connecting plate when rivers pass through and remove to can make the water of connecting plate lower extreme pass through, and unable downstream when connecting plate and supporting shoe contact, thereby can prevent the water reflux of connecting plate upper end, thereby make the backflow-preventing effect of check valve better.

2. The utility model discloses a spacing seat and positioning seat can be fixed to the effect of design bolt to can fix the connecting pipe with the joint, make the connected mode of pipeline more convenient, and when the gag lever post inserted the spacing inslot, can play a limiting displacement to the bolt, can prevent that the bolt from taking place to rotate, thereby can prevent that the bolt from removing, make the connecting pipe more firm with being connected of joint.

Drawings

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

FIG. 2 is an enlarged view of the structure of part A of FIG. 1 according to the present invention;

fig. 3 is an enlarged view of the structure of the part B of fig. 1 according to the present invention.

In the figure: 1. a valve body; 2. a nut; 3. a joint; 4. a piston; 5. a gland; 6. a first spring; 7. an O-shaped ring; 8. a fixed seat; 9. a support block; 10. a connecting plate; 11. a fixed block; 12. fixing the rod; 13. a second spring; 14. a support; 15. a chute; 16. a limiting seat; 17. a bolt; 18. positioning seats; 19. a through groove; 20. a limiting groove; 21. a limiting rod; 22. a limiting block; 23. a third spring; 24. a limiting ring; 25. and (4) connecting the pipes.

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, 2 and 3, a socket check valve includes a valve body 1, a nut 2 is disposed on the valve body 1, a connector 3 is disposed on the nut 2, a piston 4 is disposed inside the valve body 1, a gland 5 is disposed on the piston 4, a first spring 6 is disposed inside the valve body 1, an O-ring 7 is disposed on the gland 5, the O-ring 7 contacts with the connector 3, a fixing seat 8 is fixedly connected inside one of the connectors 3, a supporting block 9 is fixedly connected on the fixing seat 8, a connecting plate 10 is contacted on the supporting block 9, the connecting plate 10 contacts with the fixing seat 8, a fixing block 11 is fixedly connected inside the connector 3, a fixing rod 12 is fixedly connected on the fixing block 11, a second spring 13 is disposed outside the fixing rod 12, a bracket 14 is slidably sleeved outside the fixing rod 12, the bracket 14 is fixedly connected with the connecting plate 10, and a connecting pipe 25 is contacted on the connector 3, spacing seat 16 of fixedly connected with on the connecting pipe 25, there is bolt 17 inside of spacing seat 16 through threaded connection, positioning seat 18 has been cup jointed in the outside slip of bolt 17, positioning

seat

18 and 3 fixed connection that connect, spacing groove 20 has been seted up on bolt 17, the inside sliding connection of spacing groove 20 has gag lever post 21, stopper 22 has been cup jointed in the outside slip of gag lever post 21, stopper 22 and positioning seat 18 fixed connection, the outside of gag lever post 21 is provided with third spring 23, fixedly connected with spacing ring 24 on the gag lever post 21, spacing ring 24 and positioning seat 18 contact.

Referring to fig. 1 and 2, one end of the second spring 13 contacts the fixed block 11, and the other end of the second spring 13 contacts the bracket 14. The second spring 13 is designed such that the force of the second spring 13 acts on the bracket 14.

Referring to fig. 1 and 2, a sliding groove 15 is formed on the bracket 14, and a fixing rod 12 is slidably connected inside the sliding groove 15. The slide groove 15 is designed so that the fixing lever 12 can slide in the slide groove 15.

Referring to fig. 1 and 3, a through groove 19 is formed on the positioning seat 18, and a bolt 17 is slidably connected inside the through groove 19. The through slot 19 is designed such that the bolt 17 can slide within the through slot 19.

Referring to fig. 1 and 3, one end of the third spring 23 is welded to the stopper 22, and the other end of the third spring 23 is welded to the stopper ring 24. The third spring 23 is designed such that the force of the third spring 23 acts on the stop collar 24.

Referring to fig. 1 and 2, the number of the supporting blocks 9 is two, and both the supporting blocks 9 are in contact with the connecting plate 10. By designing the supporting block 9, a supporting effect can be exerted on the connecting plate 10, and the supporting block 9 can be prevented from moving downward.

The utility model discloses the concrete implementation process as follows: during the use, when the valve is opened, rivers can act on connecting plate 10, rivers can drive connecting plate 10 and upwards remove, connecting plate 10 can drive support 14 and upwards remove, support 14 removes along dead lever 12, support 14 can extrude second spring 13, rivers can flow through fixing base 8, rivers stop to flow when the valve is closed back, the elastic action through second spring 13 this moment, can give support 14 decurrent reaction force, make support 14 can drive connecting plate 10 and remove, make connecting plate 10 and supporting shoe 9 contact, can't remove downwards when connecting plate 10 and supporting shoe 9 contact, thereby can prevent the water backward flow of connecting plate 10 upper end, thereby make the backflow-proof effect of check valve better. When the valve is required to be connected with a pipeline, the connecting pipe 25 is firstly contacted with the joint 3, then the limiting ring 24 is pulled outwards, the limiting ring 24 drives the limiting rod 21 to move, the limiting ring 24 can stretch the third spring 23, then the bolt 17 is inserted into the positioning seat 18, then the bolt 17 is rotated to enable the bolt 17 to enter the limiting seat 16, then the connecting pipe 25 is tightly pressed with the joint 3, the bolt 17 is continuously rotated to enable the bolt 17 to be contacted with the positioning seat 18, then the limiting ring 24 is loosened, an inward reaction force is provided for the limiting ring 24 through the elastic action of the third spring 23, the limiting ring 24 drives the limiting rod 21 to move inwards, the limiting rod 21 is inserted into the limiting groove 20, the limiting seat 16 and the positioning seat 18 can be fixed through the action of the bolt 17, so that the connecting pipe 25 and the joint 3 can be fixed, the connecting mode of the pipeline is more convenient, and when the limiting rod 21 is inserted into the limiting groove 20, can play a limiting action to bolt 17, can prevent that bolt 17 from taking place to rotate to can prevent that bolt 17 from removing, make the connection of connecting pipe 25 and joint 3 more firm.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a socket joint formula check valve, includes valve body (1), its characterized in that: the novel valve is characterized in that a nut (2) is arranged on the valve body (1), a connector (3) is arranged on the nut (2), a piston (4) is arranged inside the valve body (1), a gland (5) is arranged on the piston (4), a first spring (6) is arranged inside the valve body (1), an O-shaped ring (7) is arranged on the gland (5), the O-shaped ring (7) is in contact with the connector (3), a fixed seat (8) is fixedly connected inside one of the connectors (3), a supporting block (9) is fixedly connected on the fixed seat (8), a connecting plate (10) is in contact with the supporting block (9), the connecting plate (10) is in contact with the fixed seat (8), a fixed block (11) is fixedly connected inside the connector (3), a fixed rod (12) is fixedly connected on the fixed block (11), and a second spring (13) is arranged outside the fixed rod (12), the outer side of the fixed rod (12) is sleeved with a support (14) in a sliding manner, the support (14) is fixedly connected with a connecting plate (10), the joint (3) is contacted with a connecting pipe (25), the connecting pipe (25) is fixedly connected with a limiting seat (16), the limiting seat (16) is connected with a bolt (17) through a thread, the outer side of the bolt (17) is sleeved with a positioning seat (18) in a sliding manner, the positioning seat (18) is fixedly connected with the joint (3), the bolt (17) is provided with a limiting groove (20), the limiting groove (20) is connected with a limiting rod (21) in a sliding manner, the outer side of the limiting rod (21) is sleeved with a limiting block (22) in a sliding manner, the limiting block (22) is fixedly connected with the positioning seat (18), the outer side of the limiting rod (21) is provided with a third spring (23), and the limiting ring (24) is fixedly connected with the limiting rod (21), the limiting ring (24) is in contact with the positioning seat (18).

2. The female check valve of claim 1, wherein: one end of the second spring (13) is in contact with the fixed block (11), and the other end of the second spring (13) is in contact with the bracket (14).

3. The female check valve of claim 1, wherein: a sliding groove (15) is formed in the support (14), and a fixing rod (12) is connected to the inside of the sliding groove (15) in a sliding mode.

4. The female check valve of claim 1, wherein: a through groove (19) is formed in the positioning seat (18), and a bolt (17) is connected to the inside of the through groove (19) in a sliding mode.

5. The female check valve of claim 1, wherein: one end of the third spring (23) is welded with the limiting block (22), and the other end of the third spring (23) is welded with the limiting ring (24).

6. The female check valve of claim 1, wherein: the number of the supporting blocks (9) is two, and the two supporting blocks (9) are in contact with the connecting plate (10).