CN114593245A - Valve core anti-rotation noise reduction one-way valve, noise reduction method and application thereof - Google Patents
Valve core anti-rotation noise reduction one-way valve, noise reduction method and application thereof Download PDFInfo
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- CN114593245A CN114593245A CN202210271989.4A CN202210271989A CN114593245A CN 114593245 A CN114593245 A CN 114593245A CN 202210271989 A CN202210271989 A CN 202210271989A CN 114593245 A CN114593245 A CN 114593245A
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- valve core
- noise reduction
- check
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- 230000009467 reduction Effects 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000008569 process Effects 0.000 claims abstract description 13
- 239000012530 fluid Substances 0.000 claims description 29
- 238000004378 air conditioning Methods 0.000 claims description 5
- 238000005057 refrigeration Methods 0.000 claims description 5
- 230000002265 prevention Effects 0.000 abstract description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 8
- 229910052802 copper Inorganic materials 0.000 description 8
- 239000010949 copper Substances 0.000 description 8
- 230000007547 defect Effects 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 230000008901 benefit Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 5
- 239000003507 refrigerant Substances 0.000 description 5
- 230000004323 axial length Effects 0.000 description 4
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- 241000217377 Amblema plicata Species 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
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- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
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Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/06—Check valves with guided rigid valve members with guided stems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/50—Preventing rotation of valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0254—Construction of housing; Use of materials therefor of lift valves with conical shaped valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
Abstract
The invention relates to the technical field of one-way valves, and particularly discloses a valve core rotation prevention type noise reduction one-way valve, a noise reduction method and application thereof. The valve core rotation prevention type noise reduction one-way valve at least comprises a valve body, a valve seat, a retainer ring and a valve core, wherein the retainer ring comprises a retainer ring main body and at least one rotation prevention arm extending from one end of the retainer ring main body to one side of a valve port; the valve core is provided with at least one ridge portion extending towards the retainer ring side, the ridge portion and the anti-rotation arm are arranged in a staggered mode in the radial direction, and in the process of axial movement of the valve core, the ridge portion and the anti-rotation arm are arranged in a staggered mode in the axial direction all the time. Above-mentioned structure is through setting up the rotation prevention arm restriction case rotation on the retaining ring, and under the rotatory state that is restricted of case, too much friction can not be done with the valve body inner wall to can reduce wear, promote life, and effectively reduce the running noise of check valve.
Description
Technical Field
The invention relates to the technical field of one-way valves, in particular to a valve core anti-rotation noise reduction one-way valve, a noise reduction method and application thereof.
Background
A check valve is a valve that allows fluid to flow in only one direction while suppressing reverse flow, and in particular, in a refrigeration system circuit of an air conditioning system, a plurality of check valves are generally provided for controlling the unidirectional flow of refrigerant.
The existing check valve commonly used for an air-conditioning refrigeration system loop can cause the valve core to rotate in the valve body because the refrigerant can generate certain vortex in the flowing process. The valve core can produce the friction between the valve body inner wall at rotatory in-process, can produce wearing and tearing, deformation and unusual noise, and wearing and tearing and deformation can shorten the life-span of check valve, and unusual noise includes striking noise, the sharp-pointed noise of similar whistle.
In view of the above-mentioned drawbacks caused by the rotation of the valve spool, chinese patent publication No. CN101782157B discloses a check valve provided with a plunger having at least one wing portion, a pin-shaped stopper, and a rotation stop protrusion protruding from an inner wall of a housing for limiting the rotation of the wing portion. The one-way valve of the structure limits the rotation of the plunger through the arrangement of the rotation stopping protrusion, thereby solving the defects of abrasion, deformation and noise caused by the rotation of the plunger.
However, the check valve with the above structure still has the following defects: (1) pin-like stoppers, which cause refrigerant flow imbalance; (2) in a refrigerant circulation state, impact noise can be generated between the end part of the plunger and the pin-shaped stop piece, so that the end part of the plunger is provided with the noise reduction bulge, and the noise reduction bulge is arranged, so that the structure of the plunger is more complex and the cost is higher; on the other hand, the plunger can be inclined after the noise reduction bulge interacts with the pin-shaped stop piece; (3) the rotation stopping protrusion protruding from the inner wall of the shell has the defects of high processing difficulty and high production cost, the shell of the one-way valve is usually a copper pipe, and the processing difficulty of arranging the protrusion in the shell is high, so that a special die is required to be used; if the copper pipe is punched from the outer wall of the copper pipe, the copper pipe is easy to deform.
Further, based on the above-described drawbacks caused by the rotation of the valve body, chinese patent application No. CN103383012B discloses a check valve including a valve body provided with a valve seat member and a stopper member, and a valve body having a circular plate portion and a plurality of guide portions, wherein a protruding portion for restricting the rotation of the valve body is provided so as to protrude from the inside of the valve body. The check valve of this structure, it has restricted the rotation of valve body through the setting of convex part to the wearing and tearing, deformation and the noise defect that lead to because of the valve body is rotatory have been solved.
However, the check valve of this structure still has the following drawbacks: (1) the limiting part is formed by deformation of the valve main body, a copper pipe is adopted as the material of the valve main body under the normal condition, and the copper pipe has the characteristic of poor rigidity and is directly used as the limiting part, so that the deformation is easily caused; (2) the convex part for limiting the rotation of the valve body is formed by stamping the valve body from the outer side to the inner side, and the defect that the structural deformation of the valve body is uncontrollable exists, if the deformation is controllable through a special die and a special process, the processing process is more complex, and the processing cost is higher.
Disclosure of Invention
The invention aims to solve the technical problem of providing a valve core anti-rotation noise reduction one-way valve with an improved structure, a noise reduction method and application thereof, so as to solve the related technical defects in the prior art.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: a kind of valve core prevents the noise reduction check valve of the rotary type, include at least:
the valve body is internally provided with a channel;
the valve seat is fixedly arranged in a channel of the valve body, the valve seat is provided with a fluid channel which is axially communicated, and one end of the fluid channel is a closable valve port;
the check ring is fixedly arranged in the channel of the valve body, a valve core cavity is formed between the check ring and one side of the valve port of the valve seat, and the check ring comprises a check ring main body and at least one rotation preventing arm extending from one end of the check ring main body to one side of the valve port; and
the valve core is movably arranged in the valve core cavity and comprises a valve core main body, one end of the valve core main body is provided with a closing valve part capable of closing a valve port, the other end of the valve core main body is provided with at least one ridge part extending towards the retainer ring side, the ridge part and the rotation preventing arm are arranged in a staggered mode in the radial direction, and in the process that the valve core moves in the axial direction, the ridge part and the rotation preventing arm are arranged in a staggered mode in the axial direction all the time.
In a preferred embodiment, the valve core is provided with at least two ridge portions, and the at least two ridge portions are uniformly distributed along the circumferential direction.
In a preferred embodiment, the number of the rotation preventing arms is the same as the number of the ridge portions, and the rotation preventing arms and the ridge portions are alternately arranged in the circumferential direction.
In a preferred embodiment, the valve port is provided with a conical bevel or a cambered surface, and the valve closing part is a conical bevel or a cambered surface matched with the valve port.
In a preferred embodiment, the anti-rotation arms are uniformly distributed along the circumferential direction.
In a preferred embodiment, the retainer ring main body is provided at an outer periphery thereof with at least one groove, and the valve body is provided with a protrusion punched from an outer side to the groove.
In a preferred embodiment, the protrusions are continuous in the circumferential direction; or, a plurality of protrusions are distributed along the circumferential direction.
In a preferred embodiment, the inner diameter of the fluid passage of the valve seat decreases from the side away from the valve port to the side of the valve port.
In a preferred embodiment, the thickness of the rotation preventing arm is greater than that of the retainer ring main body, and the inner side of the rotation preventing arm extends through the inner wall of the retainer ring main body.
A method of noise reduction for a check valve, comprising at least:
the valve core is provided with a ridge part;
the check valve is characterized in that an anti-rotation arm facing the valve core is arranged on the check ring, the anti-rotation arm and the ridge portion are alternately arranged along the circumferential direction, the anti-rotation arm and the ridge portion are arranged in a staggered mode in the radial direction, the anti-rotation arm and the ridge portion are always arranged in a staggered mode in the axial direction in the axial movement stroke of the valve core, and the anti-rotation arm arranged on the check ring limits the rotation of the valve core so as to reduce the noise of the check valve.
The application of the valve core anti-rotation noise reduction check valve is characterized in that the valve core anti-rotation noise reduction check valve is used for an air-conditioning refrigeration system loop.
The case prevents changeing formula check valve of making an uproar that falls of this embodiment compares with prior art, has following beneficial effect:
(1) through set up the retaining ring in valve body inside with the displacement of restriction case, compare with the stopper of pin form among the prior art, the flow of liquid is more smooth and stable, and the case is more balanced to the impact of retaining ring at the removal in-process, can not lead to the eccentric condition of case.
(2) Through set up the retaining ring in order to restrict the displacement of case in valve body inside, compare with the form that sets up spacing portion through the deformation of valve body self among the prior art, the material of retaining ring can set up to be different with the material of valve body to guarantee its rigidity, can not warp under the impact of case, also reduced the processing degree of difficulty of valve body simultaneously.
(3) The rotation of the valve core is limited by the anti-rotation arm arranged on the retainer ring, and the valve core does not have excessive friction with the inner wall of the valve body in the limited state, so that the abrasion can be reduced, the service life is prolonged, and the operation noise of the one-way valve is effectively reduced.
(4) The anti-rotation arm for limiting the rotation of the valve core is arranged on the retaining ring, and compared with the structural form that a convex part is arranged inside the valve body or is formed by inwards stamping the outer wall of the valve body in the prior art, the valve body is simpler to process, the valve body structure used in the prior art is not changed, the technical problem of deformation does not need to be considered, and the processing cost is lower.
(5) The anti-rotation arm is arranged on the retaining ring, the implementation process of the anti-rotation arm is the existing mature process, the connection between the retaining ring and the valve body is also the mature technology, and the technical defect of rotation of the valve core is overcome on the premise of ensuring low cost and high reliability.
In a word, the valve core rotation prevention type noise reduction one-way valve has the technical advantages of simple structure, ingenious conception, low cost, stability and reliability.
Drawings
Fig. 1 is a schematic structural view of the valve core rotation prevention type noise reduction check valve in the embodiment;
fig. 2 is a schematic view of an external structure of a valve seat in the valve core rotation prevention type noise reduction check valve in the embodiment;
FIG. 3A is a schematic cross-sectional view of the valve seat according to the first embodiment of the present invention;
FIG. 3B is a schematic cross-sectional view of a valve seat according to a second embodiment of the present invention;
fig. 4 is a schematic structural view of a check ring in the valve core rotation prevention type noise reduction check valve in the embodiment;
FIG. 5A is a schematic structural view of the valve cartridge according to the first embodiment of the present invention;
FIG. 5B is a schematic structural diagram of a valve core according to a second embodiment of the present invention;
FIG. 6 is a schematic view of the connection between the retainer ring and the valve body according to the present embodiment;
fig. 7A is a schematic cross-sectional structural view of the valve element and the valve seat in the closed state of the valve port in the first embodiment in this embodiment;
fig. 7B is a schematic cross-sectional view of the valve element and the valve seat in the closed state of the valve port according to the second embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, 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 merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, an integral connection, and a detachable connection; may be communication within two elements; they may be directly connected or indirectly connected through an intermediate, and those skilled in the art will understand the specific meaning of the above terms in the present invention in specific situations.
As shown in fig. 1, the valve core rotation-preventing noise-reducing check valve of the present embodiment includes a valve body 10, a valve seat 20, a valve core 40, and a retainer ring 30.
The valve body 10 is formed with a passage 11 therein, and the valve body 10 is usually made of a copper tube, but the copper tube is only a preferred material in the art, and other metal or non-metal materials may be used.
In this embodiment, the valve seat 20 and the retainer ring 30 are fixedly disposed in the channel of the valve body 10, and a spool chamber 12 for accommodating the spool 40 is formed between the valve seat 20 and the retainer ring 30, and the spool 40 is axially movable in the spool chamber 12.
In this embodiment, the valve seat 20 is configured as shown in fig. 2, 3A, and 3B, and the valve seat 20 is provided with a fluid passage 21 that axially penetrates through the valve seat 20, and the fluid passage 21 is used for receiving a fluid (e.g., refrigerant) to flow through. One end of the fluid passage 21 is a valve port 22 that can be closed by a valve element 40. Preferably, the valve port 22 is provided as a tapered slope or a cambered surface.
As a special feature of the present embodiment, the inner diameter of the fluid passage 21 of the valve seat 20 decreases from the side away from the valve port 22 to the side of the valve port 22. The purpose of this arrangement is that, when it is necessary to release the state in which the valve element 40 closes the valve port 22, the fluid flows in the fluid passage 21 in the direction from the side away from the valve port to the side of the valve port, and the valve element 40 is pushed open by the fluid pressure, so that the fluid can flow continuously in this flow direction. Through the change of the inner diameter of the fluid channel 21, especially when the inner diameter of the outlet end is smaller than that of the inlet end, the fluid has the effect of increasing the fluid pressure in the fluid channel 21, especially in an air conditioning refrigeration system circuit, the check valve is generally vertically arranged, the valve seat 20 is below the valve core 40, and in the case of no fluid flow, the valve core 40 closes the valve port 22 through self weight. In this state, the change of the inner diameter of the fluid passage raises the pressure of the fluid and applies a large fluid pressure to the valve body 40, which has a very positive effect on opening the valve opening 22 and ensuring the continuous flow of the fluid.
It should be noted that in this embodiment, the change of the inner diameter of the fluid channel 21 may be a tapered change gradually decreasing from a position away from the valve port end to the valve port end, or may be two equal-diameter sections with a difference in inner diameter as shown in fig. 3A and 3B, and a transition section is disposed between the two equal-diameter sections.
The valve body 40 of the present embodiment is configured as shown in fig. 5A and 5B, and includes a valve body 41, and a closing portion 42 capable of closing the valve port 22 is provided at one end of the valve body 41, and preferably, the closing portion 42 is provided as a tapered slope or a curved surface adapted to the valve port 22.
Preferably, in the present embodiment, the valve body 40 and the valve seat 20 of the first embodiment are configured as shown in fig. 3A and 5A, respectively, and in this embodiment, the axial length of the valve port 22 is small, the axial length of the shut-off portion 42 is long, and a schematic view of the valve port closed state is shown in fig. 7A.
Preferably, in the present embodiment, the valve body 40 and the valve seat 20 of the second embodiment are structured as shown in fig. 3B and 5B, respectively, in which the axial length of the valve port 22 is long, the axial length of the shut-off portion 42 is small, and a schematic view of the valve port closed state is shown in fig. 7B.
The valve element 40 and the valve seat 20 of the above two embodiments can perform the function of opening and closing the valve port. In practical application, the valve body diameter, application occasions, materials of the valve seat and the valve core and the like are selected correspondingly.
In the present embodiment, the other end of the valve body 41 is provided with three ridge portions 43 extending toward the retainer side. It should be noted that the provision of three ridge portions 43 is a preferred embodiment of the present embodiment, and in practical use, it is only necessary to provide at least one ridge portion 43.
Preferably, when the number of the ribs 43 is at least two, the ribs are uniformly arranged along the circumferential direction, and the purpose of the arrangement is to keep the valve core 40 and the valve body 10 parallel as much as possible under the action of the fluid, so that the movement of the valve core 40 is more reliable and the flow of the fluid is more balanced.
The valve core 40 of the present embodiment forms a sealing state between the valve closing portion 42 and the valve port 22 when the valve closing portion contacts the valve port 22, and the valve port 22 is closed to prevent the reverse flow of the fluid.
The retainer 30 of the present embodiment, as shown in fig. 4, includes a retainer body 31, and the retainer body 31 is fixedly connected to the valve body 10 for limiting the displacement of the valve core 40.
In this embodiment, as shown in fig. 4 and 6, a preferable connection mode of the retainer main body 31 and the valve body 10 is that at least one groove 33 is provided on the outer periphery of the retainer main body 31, and the valve body 10 is provided with a protrusion 13 punched from the outside toward the groove 33, so that the retainer main body 31 and the valve body 10 are fixedly connected.
Preferably, in the present embodiment, the projection 13 is continuous in the circumferential direction. It should be noted that, the protrusion 13 is only a preferred embodiment of the present embodiment continuously along the circumferential direction, and a plurality of independent protrusions may also be distributed along the circumferential direction, or the requirement of fixed connection between the two may also be met.
In the present embodiment, by providing the retainer 30 inside the valve body 10 to limit the displacement of the valve element 40, compared with the pin-shaped stopper in the prior art, the liquid flow is smoother and more stable, the impact of the valve element 40 on the retainer 30 during the movement process is more balanced, and the situation of the valve element eccentricity is not caused.
In addition, through set up retaining ring 30 in order to restrict the displacement of case 40 in valve body 10 inside in this embodiment, compare with the form that sets up spacing portion through the deformation of valve body self among the prior art, retaining ring 30's material can set up to be different with the material of valve body 10 to guarantee its rigidity, can not warp under the impact of case, also reduced the processing degree of difficulty of valve body simultaneously.
As a special feature of the present embodiment, as shown in fig. 4, the retainer 30 is provided with three antirotation arms 32 extending from one end of the retainer body 31 to the valve port 22 side. Preferably, three antirotation arms 32 are arranged evenly along the circumferential direction.
It should be noted that three rotation preventing arms 32 are only a preferred embodiment of the present embodiment, and in practical applications, at least one rotation preventing arm may be provided. When the number of the rotation preventing arms is at least two, the uniform arrangement along the circumferential direction is only the preferred embodiment of the embodiment, the rotation preventing arms can also be uniformly arranged along the circumferential direction, only the rotation preventing arms and the edge parts of the valve core need to be alternately arranged, and under the condition of non-uniform arrangement, the swing angle of the valve core can be further reduced.
The rotation preventing arm may be integrally formed with the retainer ring main body, or may be fixedly connected by conventional connecting techniques such as welding and riveting.
In the present embodiment, the ridge 43 of the valve body 40 is arranged to intersect with the rotation preventing arm 32 in the radial direction, and the ridge 43 is always arranged to intersect with the rotation preventing arm 32 in the axial direction during the stroke of the valve body 40 in the axial direction.
In the noise reduction method in this embodiment, the edge 43 is provided on the valve element 40, the rotation preventing arms 32 facing the valve element are provided on the retainer ring 30, the rotation preventing arms 32 and the edge 43 are alternately arranged in the circumferential direction, the rotation preventing arms and the edge are alternately arranged in the radial direction, and the rotation preventing arms and the edge are always alternately arranged in the axial direction during the axial movement stroke of the valve element. The rotation of the valve core is limited by the anti-rotation arm arranged on the retainer ring, and the valve core 40 does not have excessive friction with the inner wall of the valve body in the state that the rotation is limited, so that the abrasion can be reduced, the service life is prolonged, and the operation noise of the check valve is effectively reduced.
In this embodiment, the number of the rotation preventing arms 32 is the same as that of the ridge portions 43, but in practical applications, the number of the rotation preventing arms and the ridge portions may be different.
In this embodiment, the rotation-preventing arm 32 for limiting the rotation of the valve element is disposed on the retainer ring 30, and compared with the structure in the prior art in which a convex portion is disposed inside the valve body or formed by inward stamping from the outer wall of the valve body, the valve body 10 is easier to process, and the structure of the valve body used in the prior art does not change, and the technical problem of deformation does not need to be considered. The anti-rotation arm is arranged on the retainer ring, the anti-rotation arm and the retainer ring are integrally formed, so that the implementation process is the existing mature process, the connection between the retainer ring and the valve body is also a mature technology, and the technical defect of rotation of the valve core is overcome on the premise of ensuring low cost and high reliability. Has the technical advantages of simple structure, ingenious conception, lower cost, stability and reliability.
Preferably, in the present embodiment, the thickness of the rotation preventing arm 32 is greater than that of the retainer main body 31, and the inner side of the rotation preventing arm 32 extends through the inner wall of the retainer main body 31. The advantage of such an arrangement is that the structural strength of the cantilever antirotation arm 32 is enhanced and deformation due to the oscillation of the spool is prevented.
The case prevents changeing formula and falls check valve of making an uproar, with its be applied to air conditioner refrigerating system return circuit, have with low costs, the noise is low and the technical advantage of high reliability, especially, when being applied to domestic air conditioner, its silence effect has further promoted user experience.
In conclusion, the above description is only for the preferred embodiment of the present invention and should not be construed as limiting the present invention, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a case prevents changeing formula and falls check valve that makes an uproar which characterized in that includes at least:
the valve body is internally provided with a channel;
the valve seat is fixedly arranged in a channel of the valve body, the valve seat is provided with a fluid channel which is axially communicated, and one end of the fluid channel is a closable valve port;
the check ring is fixedly arranged in the channel of the valve body, a valve core cavity is formed between the check ring and one side of the valve port of the valve seat, and the check ring comprises a check ring main body and at least one anti-rotation arm extending from one end of the check ring main body to one side of the valve port; and
the valve core is movably arranged in the valve core cavity and comprises a valve core main body, one end of the valve core main body is provided with a valve closing part capable of closing a valve port, the other end of the valve core main body is provided with at least one ridge part extending towards the retainer ring side, the ridge part and the anti-rotation arm are arranged in a staggered mode in the radial direction, and in the process of axial movement of the valve core, the ridge part and the anti-rotation arm are arranged in a staggered mode in the axial direction all the time.
2. The anti-rotation noise-reducing check valve of the valve element according to claim 1, wherein the valve element is provided with at least two ridge portions, and the at least two ridge portions are uniformly distributed along the circumferential direction.
3. The valve core anti-rotation noise reduction check valve according to claim 2, wherein the number of the anti-rotation arms is the same as the number of the ridge portions, and the anti-rotation arms and the ridge portions are alternately arranged in the circumferential direction.
4. The valve core anti-rotation noise reduction one-way valve according to claim 1, wherein the valve port is provided with a tapered slope or a cambered surface, and the valve closing portion is a tapered slope or a cambered surface adapted to the valve port.
5. The valve element anti-rotation noise reduction check valve according to claim 1, wherein the retainer ring main body is provided at an outer periphery thereof with at least one groove, and the valve body is provided with a protrusion punched from an outer side to the groove.
6. The valve core anti-rotation noise reduction check valve according to claim 5, wherein the protrusion is continuous in a circumferential direction; or, a plurality of bulges are distributed along the circumferential direction.
7. The valve element anti-rotation noise reduction check valve according to claim 1, wherein an inner diameter of the fluid passage of the valve seat is reduced from a side away from the valve port to a side of the valve port.
8. The valve core anti-rotation noise reduction check valve according to any one of claims 1 to 7, wherein the thickness of the anti-rotation arm is greater than that of the check ring main body, and the inner side of the anti-rotation arm extends through the inner wall of the check ring main body.
9. A method of reducing noise in a check valve, comprising:
the valve core is provided with a ridge part;
the check valve is characterized in that an anti-rotation arm facing the valve core is arranged on the check ring, the anti-rotation arm and the ridge portion are alternately arranged along the circumferential direction, the anti-rotation arm and the ridge portion are arranged in a staggered mode in the radial direction, the anti-rotation arm and the ridge portion are always arranged in a staggered mode in the axial direction in the axial movement stroke of the valve core, and the anti-rotation arm arranged on the check ring limits the rotation of the valve core so as to reduce the noise of the check valve.
10. The use of the spool anti-rotation noise reduction check valve according to any one of claims 1 to 8, wherein the spool anti-rotation noise reduction check valve is used in an air conditioning refrigeration system loop.
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| CN202210271989.4A CN114593245A (en) | 2022-03-18 | 2022-03-18 | Valve core anti-rotation noise reduction one-way valve, noise reduction method and application thereof |
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| CN202210271989.4A CN114593245A (en) | 2022-03-18 | 2022-03-18 | Valve core anti-rotation noise reduction one-way valve, noise reduction method and application thereof |
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