CN214579097U

CN214579097U - High-pressure check valve with good sealing performance

Info

Publication number: CN214579097U
Application number: CN202120644285.8U
Authority: CN
Inventors: 曾伟; 薛凯; 张海
Original assignee: Jianyang Zhongyuan Low Temperature Equipment Kit Co ltd
Current assignee: Jianyang Zhongyuan Low Temperature Equipment Kit Co ltd
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2021-11-02
Anticipated expiration: 2031-03-30

Abstract

The utility model discloses a high-pressure check valve with better sealing performance, which comprises a check valve body, wherein two sides of the check valve body are provided with connecting structures, a water inlet channel is arranged inside the left side of the check valve body, a water outlet channel is arranged inside the right side of the check valve body, a water flow channel is arranged inside the lower end of the middle part of the check valve body, a protective plate is arranged inside the check valve body on the right side of the water flow channel, an upper connecting body is integrally formed at the upper end of the check valve body, an adjusting mechanism is arranged inside the upper connecting body, a check valve cover body is arranged at the upper end of the upper connecting body through a fixed screw thread, two sides inside the upper side of the upper connecting body are provided with a stop block, the connecting structures comprise connecting flanges, the lower side of a sleeve is movably connected with a connecting rod, and the device can reduce the impact of a medium, the safety is improved, the sealing performance of the device can be improved, and the practicability is greatly improved.

Description

High-pressure check valve with good sealing performance

Technical Field

The utility model belongs to the technical field of the check valve, specifically be a better high pressure check valve of leakproofness.

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 pivot, and operate on a similar principle to lift check valves.

But present check valve is not good at flange's junction's sealed effect, and simultaneously the check valve is when the function, and inside choked flow piece is owing to receive pressure can the upward movement at the during operation, but present choked flow piece atress inhomogeneous when the motion, leads to the leakproofness poor easily, practicality greatly reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problems, a high-pressure check valve with good sealing performance is provided.

The utility model adopts the technical scheme as follows: the utility model provides a better high pressure check valve of leakproofness, includes the check valve body, the both sides of check valve body are provided with connection structure, the inside inhalant canal that is provided with in left side of check valve body, the inside exhalant canal that is provided with in right side of check valve body, the middle part lower extreme inboard of check valve body is provided with the rivers passageway, the right side of rivers passageway is provided with the protection shield in the inside of check valve body, the upper end integrated into one piece of check valve body has the connector, the inside of going up the connector is provided with adjustment mechanism, the check valve lid is installed through fixed screw thread in the upper end of going up the connector, the inside both sides of upside of going up the connector are provided with the dog, connection structure includes flange.

In a preferred embodiment, the connecting flanges are fixedly installed at two ends of the check valve body, the four ends of the connecting flanges are provided with installation holes, and the inner sides of the connecting flanges are provided with first sealing rings.

In a preferred embodiment, the water inlet channel is located at the lower end of the left side of the inner portion of the check valve body, the water outlet channel is located at the upper end of the right side of the inner portion of the check valve body, and the left side of the protection plate is provided with an upward arc.

In a preferred embodiment, the right upper end of the protection plate is integrally formed with a stopper on the check valve body, the adjusting mechanism includes a sleeve fixedly mounted on the upper inner wall of the check valve cover, and the lower side of the sleeve is movably connected with a connecting rod.

In a preferred embodiment, the outer end cover of connecting rod and sheathed tube is equipped with the spring, the lower extreme of connecting rod is connected with the connecting seat, the both sides of connecting seat are connected with the pulley, the both sides lower extreme of going up the connecting body is provided with the spout, pulley sliding connection is in the inside of spout, the lower extreme of connecting seat is connected with the piece of stopping current.

In a preferred embodiment, the flow blocking block is conical in shape, the second sealing rings are arranged at the upper ends of the two sides of the flow blocking block inside the check valve body, and the width of the flow blocking block is greater than the distance between the two stop blocks.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, during water can be discharged into rivers passageway through inhalant canal, the protection shield can provide certain cushioning effect, then water can extrude the choking piece, choking piece atress extrusion connecting rod, alright drive the upward movement of choking piece, water alright discharge through the exhalant canal on right side, when pressure is not enough, the spring is because the resilience force can reset, drives the choking piece downstream, realizes choked flow's effect, alright prevent the backward flow.

2. The utility model discloses in, when connecting, inboard first sealing washer can improve the leakproofness of high pressure check valve when with the pipe connection, in the time of the upward movement, through the cooperation of pulley and spout, can improve the stability of upward movement, can improve the leakproofness at the during operation through the second sealing washer simultaneously, has improved the practicality of device greatly.

Drawings

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

FIG. 2 is an enlarged schematic diagram of the adjusting mechanism of the present invention;

fig. 3 is an enlarged schematic diagram of the connection structure of the present invention.

The labels in the figure are: 1-water inlet channel, 2-upper connector, 3-stop block, 4-fixing screw, 5-check valve cover body, 6-adjusting mechanism, 61-sleeve, 62-spring, 63-pulley, 64-second sealing ring, 65-connecting seat, 66-chute, 67-choke block, 7-water outlet channel, 8-check valve body, 9-connecting structure, 91-connecting flange, 92-mounting hole, 93-first sealing ring, 10-limiting block, 11-protecting plate and 12-water flow channel.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Referring to fig. 1 to 3, a high pressure check valve with good sealing performance includes a check valve body 8, connection structures 9 are disposed at both sides of the check valve body 8, a water inlet passage 1 is disposed inside the left side of the check valve body 8, a water outlet passage 7 is disposed inside the right side of the check valve body 8, a water flow passage 12 is disposed inside the lower end of the middle portion of the check valve body 8, water is discharged into the water flow passage 12 through the water inlet passage 1, protection shield 11 can provide certain cushioning effect, and the right side of rivers passageway 12 is provided with protection shield 11 in check valve body 8's inside, and check valve body 8's upper end integrated into one piece has connector 2, and connector 2's inside is provided with adjustment mechanism 6, and the check valve lid 5 is installed through fixed screw 4 threads to connector 2's upper end, and the inside both sides of upside of connector 2 are provided with dog 3, and connection structure 9 includes flange 91.

It should be noted that the connecting flanges 91 are fixedly installed at both ends of the check valve body 8, the four ends of the connecting flanges 91 are provided with the installation holes 92, the inner sides of the connecting flanges 91 are provided with the first sealing rings 93, and the connecting flanges 91 are connected with the pipeline through the connecting flanges 91 at both sides, and when the connecting flanges are connected, the first sealing rings 93 at the inner sides can improve the sealing performance of the high-pressure check valve when the high-pressure check valve is connected with the pipeline.

It should be noted that the water inlet channel 1 is located at the lower end of the left side of the interior of the check valve body 8, the water outlet channel 7 is located at the upper end of the right side of the interior of the check valve body 8, and the left side of the protection plate 11 is provided with an upward radian.

It should be noted that the right upper end of the protection plate 11 is integrally formed with the stopper 10 on the check valve body 8, the adjusting mechanism 6 includes a sleeve 61, the sleeve 61 is fixedly mounted on the upper inner wall of the check valve cover 5, the lower side of the sleeve 61 is movably connected with a connecting rod, and the stability of the upward movement can be improved by the cooperation of the pulley 63 and the sliding groove 62.

It should be noted that, the outer pot head of connecting rod and sleeve pipe 61 is equipped with spring 62, the lower extreme of connecting rod is connected with connecting seat 65, the both sides of connecting seat 65 are connected with pulley 63, the both sides lower extreme of going up connector 2 is provided with spout 66, pulley 63 sliding connection is in the inside of spout 66, the lower extreme of connecting seat 65 is connected with choked block 67, water can extrude choked block 67, choked block 67 atress extrusion connecting rod, alright drive choked block 67 upward movement, water alright discharge through the play water passageway 7 on right side, when pressure is not enough, spring 62 is because the resilience can reset, drive choked block 67 downstream, realize choked flow's effect, alright prevent the backward flow.

It should be noted that the flow blocking block 67 is overall conical, the second sealing rings 64 are disposed inside the check valve body 8 at the upper ends of the two sides of the flow blocking block 67, the sealing performance during operation can be improved by the second sealing rings 64, and the width of the flow blocking block 67 is greater than the distance between the two stoppers 3.

The working principle is as follows: this device is when using, at first the flange 91 through both sides is connected with the pipeline, when connecting, inboard first sealing washer 93 can improve the leakproofness of high pressure check valve when with the pipe connection, when using, water can discharge into rivers passageway 12 through inhalant canal 1, protection shield 11 can provide certain cushioning effect, then water can extrude choked flow piece 67, choked flow piece 67 atress extrusion connecting rod, alright drive choked flow piece 67 upward movement, water alright discharge through the exhalant canal 7 on right side, when pressure is not enough, spring 62 is because the resilience can reset, drive choked flow piece 67 downstream, realize choked flow's effect, alright prevent backward flow.

When the device moves upwards, the pulley 63 is matched with the chute 62, the stability of the upward movement can be improved, meanwhile, the sealing performance during operation can be improved through the second sealing ring 64, and the practicability of the device is greatly improved.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a better high pressure check valve of leakproofness, includes check valve body (8), its characterized in that: the two sides of the check valve body (8) are provided with connecting structures (9), the left side of the check valve body (8) is internally provided with a water inlet channel (1), a water outlet channel (7) is arranged inside the right side of the check valve body (8), a water flow channel (12) is arranged inside the lower end of the middle part of the check valve body (8), a protection plate (11) is arranged at the right side of the water flow channel (12) in the check valve body (8), the upper end of the check valve body (8) is integrally formed with an upper connector (2), an adjusting mechanism (6) is arranged inside the upper connecting body (2), a check valve cover body (5) is installed at the upper end of the upper connecting body (2) through a fixing screw (4) in a threaded manner, the inner two sides of the upper side of the upper connecting body (2) are provided with stop blocks (3), and the connecting structure (9) comprises a connecting flange (91).

2. A high pressure check valve with improved sealing as claimed in claim 1, wherein: connecting flange (91) fixed mounting is at the both ends of check valve body (8), four ends of connecting flange (91) are provided with mounting hole (92), the inboard of connecting flange (91) is provided with first sealing washer (93).

3. A high pressure check valve with improved sealing as claimed in claim 1, wherein: inhalant canal (1) is located the inside left side lower extreme of check valve body (8), exhalant canal (7) are located the inside right side upper end of check valve body (8), the left side of protection shield (11) is provided with ascending radian.

4. A high pressure check valve with improved sealing as claimed in claim 1, wherein: the right side upper end of protection shield (11) integrated into one piece has stopper (10) on check valve body (8), adjustment mechanism (6) include sleeve pipe (61), sleeve pipe (61) fixed mounting is on the upside inner wall of check valve lid (5), the downside swing joint of sleeve pipe (61) has the connecting rod.

5. A better sealing high pressure check valve as defined in claim 4, wherein: the outer pot head of connecting rod and sleeve pipe (61) is equipped with spring (62), the lower extreme of connecting rod is connected with connecting seat (65), the both sides of connecting seat (65) are connected with pulley (63), the both sides lower extreme of upper connector (2) is provided with spout (66), pulley (63) sliding connection is in the inside of spout (66), the lower extreme of connecting seat (65) is connected with choked flow piece (67).

6. A high pressure check valve with improved sealing as claimed in claim 5, wherein: the whole body of the flow blocking block (67) is in a conical shape, the upper ends of the two sides of the flow blocking block (67) are provided with second sealing rings (64) in the check valve body (8), and the width of the flow blocking block (67) is larger than the distance between the stop block (3) and the check valve body.