CN218719030U

CN218719030U - One-way valve

Info

Publication number: CN218719030U
Application number: CN202222758422.8U
Authority: CN
Inventors: 周杨波; 潘军波
Original assignee: Zhejiang Fuji Precision Technology Co ltd
Current assignee: Zhejiang Fuji Precision Technology Co ltd
Priority date: 2022-10-18
Filing date: 2022-10-18
Publication date: 2023-03-24
Anticipated expiration: 2032-10-18

Abstract

The utility model discloses a check valve, include: the valve comprises a valve body, an input pipe and an output pipe, wherein a valve core, a valve seat and a spring are arranged in the valve body, a supporting seat and a throttle plate are arranged in the input pipe, the supporting seat is provided with a middle hole for a refrigerant to pass through, and throttle holes are uniformly distributed on the throttle plate; the supporting seat is detachably connected with the throttle plate. The utility model discloses novel structure, the throttle deceleration, the noise is little, and the throttle plate dismouting is nimble, convenient to use.

Description

One-way valve

Technical Field

The utility model belongs to the technical field of the check valve, especially, relate to a check valve.

Background

One-way valves, also known as check valves or back valves, are valves in which fluid can only flow along an inlet but cannot flow back along an outlet, and are commonly used in air conditioners.

When the flow velocity of refrigerant fluid is too fast, the flow is irregular or the fluid pressure is large, the existing check valve can generate large noise to impact the valve body, so that the valve body vibrates, and the internal valve is damaged. The prior patent literature discloses a diaphragm type one-way valve (publication number: CN 205978668U), and the technical scheme describes that the noise reduction effect is realized by adopting a noise reduction column, but the noise reduction column is arranged in a valve body, so that the noise reduction column is damaged and cannot be taken out for replacement, and the cost is high for replacing the one-way valve.

Disclosure of Invention

The utility model aims to solve the above-mentioned technical problem that exists among the prior art, provide a check valve, novel structure, throttle deceleration, the noise is little, and the throttle plate dismouting is nimble, convenient to use.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a one-way valve comprising: valve body, input tube and output tube are equipped with case, disk seat and spring in the valve body, its characterized in that: the input pipe is internally provided with a supporting seat and a throttle plate, the supporting seat is provided with a middle hole for refrigerant to pass through, and throttle holes are uniformly distributed on the throttle plate; the supporting seat is detachably connected with the throttle plate. The one-way valve has the advantages of novel structure, throttling deceleration, low noise, flexible disassembly and assembly of the throttle plate and convenient use.

Further, be equipped with the external screw thread arch on the supporting seat, be equipped with the internal thread bulge loop on the throttle plate, the internal thread bulge loop is connected with the protruding screw-thread fit of external screw thread, connects reliably, and difficult not hard up, the dismouting is convenient, and the throttle plate damages removable, and is nimble convenient.

Furthermore, the valve body is connected with the input pipe and the output pipe through the extending ends at the two ends, so that the contact area of the valve body with the input pipe and the output pipe is increased, and the connection strength is improved.

Furthermore, the joints of the extension end and the input pipe and the output pipe are coated with glass cement, so that the connection strength and the sealing property of the joints of the extension end and the input pipe and the output pipe are improved, the gap of the joints is sealed by the glass cement, leakage is prevented, and the use is reliable.

Further, an input cavity, a shunt cavity and an output cavity are arranged in the valve body, the shunt cavity is communicated with the input cavity and the output cavity, the valve core blocks an outlet of the input cavity, a shunt hole is formed in the side wall of the valve core, and a flow guide hole is formed in the valve seat; the refrigerant fluid enters the input cavity, enters the diversion cavity after jacking the valve core, enters the inner cavity of the valve core through the diversion hole, and then enters the output cavity through the diversion hole, the refrigerant fluid consumes energy in the process of jacking the valve core, flowing through the diversion hole and the diversion hole, the flow velocity is gradually reduced, the flow velocity tends to be stable, the impact on the inner wall of the valve body is small, and the noise is low.

Furthermore, a vacuum section is arranged in the valve body, so that the outward transmission of noise generated by the flowing of the refrigerant fluid is prevented, and the influence of the noise on the external environment is avoided.

Furthermore, the inner wall of the valve body is provided with a noise reduction layer, the refrigerant fluid contacts with the noise reduction layer in the flowing process, and the noise reduction layer can absorb noise generated by the refrigerant fluid to achieve the noise reduction effect.

Furthermore, the supporting seat is welded and fixed in the input tube, so that the installation is firm, the free falling is not easy to occur, and the use is reliable.

Furthermore, the input pipe and the output pipe are provided with flaring sections, so that the input pipe and the output pipe are in butt joint fit with an air conditioner pipeline conveniently, and the convenience of assembly is improved.

The utility model discloses owing to adopted above-mentioned technical scheme, following beneficial effect has:

1. when the refrigerant fluid flows through the throttle plate, the refrigerant fluid is divided into a plurality of small strands by the throttle hole, the flow area of the throttle hole is small, the flow speed is reduced, the irregular movement of the refrigerant fluid is reduced, and the flow noise is low; the support seat gives support to the throttle plate, assisting the throttle plate in resisting the impact of the refrigerant fluid.

2. The refrigerant fluid enters the input cavity of the valve body through the input pipe, overcomes the spring force, backs up the valve core, enters the diversion cavity, enters the inner cavity of the valve core through the diversion hole, enters the output cavity through the diversion hole, and finally flows out through the output pipe, thereby realizing diversion and speed reduction of the refrigerant fluid, reducing the flowing noise, consuming energy in the process that the refrigerant fluid backs up the valve core and flows through the diversion hole and the diversion hole, gradually reducing the flowing speed, tending to be stable, having small impact on the inner wall of the valve body and having small noise.

Drawings

The present invention will be further explained with reference to the accompanying drawings:

FIG. 1 is a schematic structural diagram of a valve body according to a first embodiment;

FIG. 2 is a schematic flow direction diagram of the refrigerant fluid in the valve body according to the first embodiment;

FIG. 3 is a schematic view showing the connection structure of the valve body, the inlet pipe and the outlet pipe according to the first embodiment;

FIG. 4 is a schematic view of the connection of the inlet pipe and the throttle plate according to the first embodiment;

FIG. 5 is a schematic view of a connection between a support base and a throttle plate according to an embodiment;

FIG. 6 is a schematic structural diagram according to a second embodiment;

fig. 7 is a schematic structural diagram of the third embodiment.

In the figure: 1-a valve body; 2-an input tube; 3, outputting a pipe; 4-an extension end; 5-glass cement; 6-flaring section; 7-a valve core; 8-valve seat; 9-a spring; 10-an input cavity; 11-a shunting cavity; 12-an output cavity; 13-a shunt hole; 14-diversion holes; 15-a support seat; 16-a throttle plate; 17-external thread protrusions; 18-internal thread convex ring; 19-mesopores; 20-orifice; 21-a noise reduction layer; 22-vacuum section.

Detailed Description

As shown in fig. 1 to 5, the first embodiment of the present invention is provided.

A one-way valve comprising: valve body 1, input tube 2 and output tube 3, the shell of valve body 1 can adopt the brass to make, and input tube 2 and output tube 3 can adopt the copper to make, and valve body 1 passes through the extension end 4 at both ends and connects input tube 2, output tube 3, has increased the area of contact of valve body 1 with input tube 2, output tube 3, has improved joint strength.

The joint coating of extension end 4 and input tube 2, output tube 3 has glass and has glued 5, has improved the joint strength and the leakproofness of extension end 4 and input tube 2, output tube 3 junction, and the gap of glass 5 shutoff junctions prevents to leak, uses reliably.

The input pipe 2 and the output pipe 3 are both provided with flaring sections 6, so that the butt joint of the input pipe and the output pipe is matched with an air conditioner pipeline conveniently, and the convenience of assembly is improved.

Be equipped with case 7, disk seat 8 and spring 9 in the valve body 1, spring 9 locates between case 7 and the disk seat 8, be equipped with input chamber 10, reposition of redundant personnel chamber 11 and output chamber 12 in the valve body 1, reposition of redundant personnel chamber 11 intercommunication input chamber 10 and output chamber 12, case 7 is arranged in reposition of redundant personnel chamber 11, the export of case 7's end shutoff input chamber 10, the exit in reposition of redundant personnel chamber 11 is located to disk seat 8, be equipped with reposition of redundant personnel hole 13 on the lateral wall of case 7, be equipped with water conservancy diversion hole 14 on the disk seat 8.

Refrigerant fluid enters the input cavity 10 through the input pipe 2, overcomes the force of the spring 9 to jack the valve core 7, enters the diversion cavity 11, enters the inner cavity of the valve core 7 through the diversion hole 13, enters the output cavity 12 through the diversion hole 14, and finally flows out through the output pipe 3, so that the diversion and speed reduction of the refrigerant fluid are realized, the flowing noise is reduced, the energy is consumed in the process that the refrigerant fluid jacks the valve core 7 and flows through the diversion hole 13 and the diversion hole 14, the flow speed is gradually reduced, the refrigerant fluid tends to be stable, the impact on the inner wall of the valve body 1 is small, and the noise is small.

The supporting seat 15 is welded and fixed in the input tube 2, so that the installation is firm, the free falling is not easy to happen, and the use is reliable.

The throttle plate 16 is detachably connected to the supporting seat 15, and the throttle plate 16 is replaceable when damaged, flexible and convenient. Be equipped with external screw thread arch 17 on the supporting seat 15, be equipped with internal thread bulge loop 18 on the throttle plate 16, internal thread bulge loop 18 is connected with the protruding 17 screw-thread fit of external screw thread, and threaded connection is reliable, and difficult not hard up, the dismouting is convenient.

The supporting seat 15 is provided with a middle hole 19 for refrigerant to pass through, the throttle plate 16 is uniformly distributed with throttle holes 20, when refrigerant fluid flows through the throttle plate 16, the refrigerant fluid is divided into a plurality of small strands by the throttle holes 20, the flow area of the throttle holes 20 is small, the flow speed is reduced, irregular movement of the refrigerant fluid is reduced, and the flow noise is low; the support seat 15 gives support to the throttle plate 16, assisting the throttle plate 16 against the impact of the refrigerant fluid.

The inner wall of the orifice 20 is provided with sound absorbing cotton for absorbing noise generated by the refrigerant fluid and improving noise reduction effect.

As shown in fig. 6, the second embodiment of the present invention is provided.

Under the technical scheme based on embodiment one, be equipped with noise reduction layer 21 on the inner wall of valve body 1, noise reduction layer 21 can adopt polyurethane foam or inhale the sound glass cotton, and refrigerant fluid flows in-process and contacts with noise reduction layer 21, and noise reduction layer 21 can absorb the noise that refrigerant fluid produced, plays noise reduction effect.

As shown in fig. 7, the third embodiment of the present invention is shown.

Under the technical scheme based on the first embodiment, a vacuum section 22 is arranged in the valve body 1, so that noise generated by the flowing of refrigerant fluid is prevented from spreading outwards, and the influence of the noise on the external environment is avoided.

The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications made on the basis of the present invention to solve the same technical problems and achieve the same technical effects are all covered by the protection scope of the present invention.

Claims

1. A one-way valve comprising:

a valve body, an input pipe and an output pipe,

a valve core, a valve seat and a spring are arranged in the valve body,

the method is characterized in that:

the input pipe is internally provided with a supporting seat and a throttle plate, the supporting seat is provided with a middle hole for refrigerant to pass through, and throttle holes are uniformly distributed on the throttle plate;

the supporting seat is detachably connected with the throttle plate.

2. A one-way valve according to claim 1, wherein: the supporting seat is provided with an external thread bulge, the throttle plate is provided with an internal thread convex ring, and the internal thread convex ring is in threaded fit connection with the external thread bulge.

3. A check valve as in claim 1, wherein: the valve body is connected with the input pipe and the output pipe through the extending ends at the two ends.

4. A one-way valve according to claim 3, wherein: the joints of the extending ends, the input pipe and the output pipe are coated with glass cement.

5. A one-way valve according to claim 1, wherein: an input cavity, a shunt cavity and an output cavity are arranged in the valve body, the shunt cavity is communicated with the input cavity and the output cavity, the valve core blocks an outlet of the input cavity, a shunt hole is formed in the side wall of the valve core, and a flow guide hole is formed in the valve seat;

refrigerant fluid enters the input cavity, enters the diversion cavity after jacking the valve core, enters the inner cavity of the valve core through the diversion hole and enters the output cavity through the diversion hole.

6. A check valve as in claim 1, wherein: the supporting seat is welded and fixed in the input pipe.

7. A one-way valve according to claim 1, wherein: the input pipe and the output pipe are both provided with flaring sections.

8. A check valve as claimed in any one of claims 1 to 7, wherein: the valve body is internally provided with a vacuum section.

9. A check valve as claimed in any one of claims 1 to 7, wherein: and a noise reduction layer is arranged on the inner wall of the valve body.