CN220706495U - Check valve capable of reducing water flow impact - Google Patents

Abstract

The utility model relates to the technical field of check valves, in particular to a check valve capable of reducing water flow impact, which comprises a valve body, wherein a water inlet pipeline is fixedly arranged on the left side of the valve body, a water outlet pipeline is fixedly arranged on the right side of the valve body, a connecting pipe is fixedly arranged on the side surface of the water inlet pipeline, a bracket is fixedly arranged in the valve body, and a fixing rod is fixedly arranged on the surface of the bracket. According to the utility model, when the spring is extruded, the elastic potential energy of the spring is utilized to provide impact for the valve core, so that the abrasion of the valve core can be reduced, the service life of the check valve is prolonged, the sealing ring, the limiting block and the limiting groove structure are arranged, the valve core can be stabilized in the valve body to move, the valve core is prevented from sliding due to the impact of fluid, the backflow prevention effect of the valve body is influenced, meanwhile, the fluid can be prevented from entering the cylinder through a gap between the cylinder and the fixed rod, the gap is effectively sealed, and the spring is protected.

Description

Check valve capable of reducing water flow impact

Technical Field

The utility model relates to the technical field of check valves, in particular to a check valve capable of reducing water flow impact.

Background

The check valve is a valve for preventing the medium from flowing backward by automatically opening and closing a valve flap depending on the flow of the medium, and is also called a check valve, a one-way valve, a reverse flow valve, and a back pressure valve. The check valve is an automatic valve, and has the main functions of preventing medium backflow, preventing reverse rotation of a pump and a driving motor, and discharging of container medium, when the check valve is used, the medium backflow drives the valve clack to be closed, the medium backflow is blocked suddenly to generate a water hammer phenomenon, the valve clack is impacted, and when the medium pressure in the front and the back of the valve body is in a state of being close to balance and mutually 'pulling and sawing', the valve clack is often flapped with the valve body, the valve clack is repeatedly impacted and impacted, the valve clack is easy to damage, and improvement is needed.

Disclosure of Invention

The present utility model is directed to solving the technical problems set forth in the background art.

The utility model adopts the following technical scheme: the utility model provides a but check valve of reduction rivers impact, includes the valve body, the left side fixed mounting of valve body has the inlet channel, the right side fixed mounting of valve body has the outlet channel, the side fixed mounting of inlet channel has the connecting pipe, the inside fixed mounting of valve body has the support, the fixed surface of support installs the dead lever, the end fixed mounting of dead lever has the spring, the surface sliding connection of dead lever has the drum, the end fixed mounting of drum has the connecting plate, the surface fixed mounting of connecting plate has the case, the inside of inlet channel is provided with the inlet channel.

Preferably, a limiting block is fixedly arranged on the surface of the fixing rod, and a limiting groove is formed in the cylinder. Here, can make the connecting plate drive the case steady and slide on the dead lever.

Preferably, the sealing strip is fixedly arranged on the surface of the connecting plate, and the sealing groove is formed in the surface of the water inlet channel. Here, the sealability between the valve core and the water inlet channel can be improved.

Preferably, a sealing ring is fixedly arranged in the cylinder, and the sealing ring is connected with the surface of the fixed rod in a sliding manner. Here, the gap between the cylinder and the fixing rod can be sealed, and the spring can be protected.

Preferably, through holes are formed in the surface of the connecting plate, and the through holes are uniformly distributed on the surface of the connecting plate. Here, the fluid can be conveniently flowed.

Preferably, the surface of the connecting pipe is inserted with a bolt, the surface of the bolt is connected with a screw cap in a threaded manner, a filter plate is fixedly arranged between the connecting pipe and the water inlet pipeline, and the surface of the filter plate is provided with an inserting hole. Here, the fluid may be subjected to a purifying and filtering operation.

Preferably, the surface of the filter plate is fixedly provided with an inserting block, and the surfaces of the water inlet pipeline and the connecting pipe are provided with slots. Here, the tightness of the filter plate between the water inlet channel and the connecting plate is improved.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. according to the utility model, the support, the fixed rod, the spring, the cylinder and the connecting plate structure are arranged, when the spring is extruded, the elastic potential energy of the spring is utilized to provide impact for the valve core, so that the abrasion of the valve core can be reduced, the service life of the check valve is prolonged, the valve core can be stabilized in the valve body to move through arranging the sealing ring, the limiting block and the limiting groove structure, the valve core is prevented from sliding due to the impact of fluid, the backflow prevention effect of the valve body is prevented from being influenced, meanwhile, the fluid can be prevented from entering the cylinder through a gap between the cylinder and the fixed rod, the gap is effectively sealed, and the spring is protected.

2. According to the utility model, through arranging the filter plate, the jack, the bolt, the nut, the insert block and the slot structure, fluid entering the valve body can be filtered, impurities are prevented from remaining in the valve body, the backflow preventing effect of the check valve is affected, the tightness of the filter plate between the water inlet pipeline and the connecting pipe can be improved by inserting the insert block into the slot, and the filter plate can be conveniently disassembled and assembled by personnel, so that the filter plate is convenient to maintain or replace.

Drawings

FIG. 1 is a schematic view of a check valve for reducing water flow impact according to the present utility model;

FIG. 2 is a cross-sectional view of a check valve for reducing water flow impingement according to the present utility model;

FIG. 3 is an enlarged view of the check valve of FIG. 2A showing a reduced water flow impact in accordance with the present utility model;

FIG. 4 is a schematic diagram showing a valve core of a check valve capable of reducing water flow impact according to the present utility model;

FIG. 5 is a right side view of a valve element of a check valve for reducing water flow impact according to the present utility model;

fig. 6 is a schematic view of a filter plate of a check valve for reducing water impact according to the present utility model.

Legend description:

1. a valve body; 2. a water inlet pipe; 3. a water outlet pipe; 4. a connecting pipe; 5. a water inlet channel; 6. a bracket; 7. a fixed rod; 8. a spring; 9. a cylinder; 10. a connecting plate; 11. a valve core; 12. a through hole; 13. a limiting block; 14. a limit groove; 15. a seal ring; 16. a sealing strip; 17. sealing grooves; 18. a filter plate; 19. a jack; 20. a bolt; 21. a screw cap; 22. inserting blocks; 23. a slot.

Detailed Description

In order that the above objects, features and advantages of the utility model will be more clearly understood, a further description of the utility model will be rendered by reference to the appended drawings and examples. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced otherwise than as described herein, and therefore the present utility model is not limited to the specific embodiments of the disclosure that follow.

Example 1

Referring to fig. 1-5, the present utility model provides a technical solution: the check valve capable of reducing water flow impact comprises a valve body 1, a water inlet pipeline 2 is fixedly arranged on the left side of the valve body 1, a water outlet pipeline 3 is fixedly arranged on the right side of the valve body 1, a connecting pipe 4 is fixedly arranged on the side surface of the water inlet pipeline 2, a bracket 6 is fixedly arranged in the valve body 1, a fixing rod 7 is fixedly arranged on the surface of the bracket 6, a spring 8 is fixedly arranged at the end of the fixing rod 7, a cylinder 9 is slidably connected on the surface of the fixing rod 7, a connecting plate 10 is fixedly arranged at the end of the cylinder 9, a valve core 11 is fixedly arranged on the surface of the connecting plate 10, a water inlet channel 5 is arranged in the water inlet pipeline 2, a limiting block 13 is fixedly arranged on the surface of the fixing rod 7, a limiting groove 14 is formed in the cylinder 9, the connecting plate 10 drives the valve core 11 to slide on the fixing rod 7, a sealing strip 16 is fixedly arranged on the surface of the connecting plate 10, a sealing groove 17 is formed in the surface of the water inlet channel 5, the inside of the cylinder 9 is fixedly provided with a sealing ring 15, the sealing ring 15 is in sliding connection on the surface of the fixed rod 7, a gap between the cylinder 9 and the fixed rod 7 can be sealed, the spring 8 is protected, the surface of the connecting plate 10 is provided with through holes 12, the through holes 12 are uniformly distributed on the surface of the connecting plate 10, when fluid enters the inside of the valve body 1 through the connecting pipe 4, the fluid firstly passes through the water inlet channel 5 in the water inlet pipeline 2, then the fluid pushes the valve core 11, the valve core 11 pushes the cylinder 9 to slide on the fixed rod 7, then the fixed rod 7 presses the spring 8, the impact is relieved for the valve core 11 through the elastic potential energy of the spring 8, the abrasion of the valve core 11 can be reduced, the service life of the check valve is prolonged, then the fluid passes through the through holes 12 in the connecting plate 10, when the backflow situation occurs in the water outlet pipeline 3, fluid can push the connecting plate 10 to move towards the water inlet pipeline 2, then the valve core 11 is matched with the water inlet channel 5, the valve core 11 is inserted into the water inlet channel 5, then the limiting strip is inserted into the limiting groove 14, and the tightness between the valve core 11 and the water inlet channel 5 is improved.

Example two

Referring to fig. 1-2, fig. 6, a bolt 20 is inserted on the surface of the connecting pipe 4, a nut 21 is connected to the surface of the bolt 20 in a threaded manner, a filter plate 18 is fixedly installed between the connecting pipe 4 and the water inlet pipe 2, an insertion hole 19 is formed in the surface of the filter plate 18, an insertion block 22 is fixedly installed on the surface of the filter plate 18, slots 23 are formed in the surfaces of the water inlet pipe 2 and the connecting pipe 4, the filter plate 18 is installed between the water inlet pipe 2 and the connecting pipe 4, fluid entering the valve body 1 can be filtered, impurities are prevented from remaining in the valve body 1, the backflow prevention effect of the check valve is affected, the tightness of the filter plate 18 between the water inlet pipe 2 and the connecting pipe 4 can be improved by inserting the insertion block 22 into the slots 23, and the filter plate 18 can be disassembled and assembled by personnel conveniently, so that the filter plate 18 is maintained or replaced conveniently.

Working principle: when fluid enters the valve body 1 through the connecting pipe 4, make the fluid pass through the water inlet channel 5 in the water inlet pipeline 2 at first, then the fluid promotes the case 11, make the case 11 promote drum 9 and slide on dead lever 7, afterwards in the inside of drum 9, dead lever 7 extrudes spring 8, the elastic potential energy through spring 8 provides the impact that slows down for case 11, can reduce the wearing and tearing of case 11, improve the life of check valve, afterwards the fluid passes through the through-hole 12 on connecting plate 10, enter into outlet pipeline 3, when the backward flow condition takes place, the fluid can promote connecting plate 10 to the direction removal of water inlet pipeline 2, then make case 11 and water inlet channel 5 cooperate, insert case 11 into water inlet channel 5, can make the spacing insert in spacing groove 14 afterwards, improve the leakproofness between case 11 and the water inlet channel 5, install filter 18 between water inlet pipeline 2 and connecting pipe 4, can filter the fluid that enters into the inside of valve body 1, avoid impurity to remain in 1 inside, the check valve backflow prevention effect, through inserting the filter 22 into slot 23, can improve filter 18 and filter 18 in order to carry out the convenience to the dismouting to the water inlet pipeline 2 or the connection pipe 18.

The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present utility model without departing from the technical content of the present utility model still belong to the protection scope of the technical solution of the present utility model.

Claims (7)

1. Check valve capable of reducing water flow impact, comprising a valve body (1), and being characterized in that: the valve is characterized in that a water inlet pipeline (2) is fixedly arranged on the left side of the valve body (1), a water outlet pipeline (3) is fixedly arranged on the right side of the valve body (1), a connecting pipe (4) is fixedly arranged on the side face of the water inlet pipeline (2), a support (6) is fixedly arranged in the valve body (1), a fixing rod (7) is fixedly arranged on the surface of the support (6), a spring (8) is fixedly arranged at the end of the fixing rod (7), a cylinder (9) is connected with the surface of the fixing rod (7) in a sliding manner, a connecting plate (10) is fixedly arranged at the end of the cylinder (9), a valve core (11) is fixedly arranged on the surface of the connecting plate (10), and a water inlet channel (5) is arranged in the water inlet pipeline (2).

2. The check valve for reducing water flow impingement as defined in claim 1, wherein: limiting blocks (13) are fixedly arranged on the surface of the fixed rod (7), and limiting grooves (14) are formed in the cylinder (9).

3. The check valve for reducing water flow impingement as defined in claim 1, wherein: the surface of the connecting plate (10) is fixedly provided with a sealing strip (16), and the surface of the water inlet channel (5) is provided with a sealing groove (17).

4. The check valve for reducing water flow impingement as defined in claim 1, wherein: a sealing ring (15) is fixedly arranged in the cylinder (9), and the sealing ring (15) is connected with the surface of the fixed rod (7) in a sliding manner.

5. The check valve for reducing water flow impingement as defined in claim 1, wherein: through holes (12) are formed in the surface of the connecting plate (10), and the through holes (12) are uniformly distributed on the surface of the connecting plate (10).

6. The check valve for reducing water flow impingement as defined in claim 1, wherein: the surface of connecting pipe (4) is inserted and is equipped with bolt (20), the surface threaded connection of bolt (20) has nut (21), fixed mounting has filter (18) between connecting pipe (4) and inlet channel (2), jack (19) have been seted up on the surface of filter (18).

7. The check valve for reducing water flow impingement as defined in claim 6, wherein: the surface of the filter plate (18) is fixedly provided with an inserting block (22), and the surfaces of the water inlet pipeline (2) and the connecting pipe (4) are provided with slots (23).