CN219655361U - Switch valve - Google Patents

Abstract

The utility model relates to the field of valves, in particular to a switching valve, which comprises a valve body and a first pipe fitting, wherein a through circulation cavity is formed in the valve body, a baffle part is formed in the circulation cavity, the baffle part divides the circulation cavity into an upstream cavity and a downstream cavity, the periphery of the baffle part is fixed on the inner wall of the circulation cavity through a connecting part, and communication holes are formed in the connecting part in a dispersing way and are used for communicating the upstream cavity with the downstream cavity; the first end of the first pipe fitting is movably connected into the upstream cavity; the whole switch valve is linear, the first pipe fitting is movably connected in the upstream cavity, and along with the movement of the first pipe fitting, the circulation gap between the first pipe fitting and the baffle part is changed, so that the speed of refrigerant filling can be conveniently adjusted, the whole switch valve is simple in structure, low in economic cost, convenient to operate and small in space volume.

Description

Switch valve

Technical Field

The utility model belongs to the technical field of valves, and particularly relates to a switch valve.

Background

In the working process of the air conditioner or the heat pump water heater, a refrigerant is required to be used as a heat exchange medium, the refrigerant is required to be connected to a refrigerant pipeline through a switch valve in the filling process, specifically, a connecting valve port is preset on the refrigerant pipeline, and the switch valve is used as an intermediate connecting piece of the refrigerant pipeline and an external pipeline to control the conveying of the refrigerant.

The existing on-off valve for refrigerant filling is generally of a three-way structure, for example, the application number is: 202121839889.4, the liquid adding valve structure that relates to in the patent document of a kind of air conditioner liquid adding valve, the ooff valve of this kind of structure occupy great space for operating space is narrow and small, inconvenient operating personnel operates, in addition, in the refrigerant filling process, according to actual filling demand, need adjust the filling speed of refrigerant, consequently, need design a simple structure, small, ooff valve aperture adjusts convenient ooff valve.

Disclosure of Invention

The utility model aims to provide a switch valve to solve the problems of overlarge volume, small installation and operation space, inconvenient refrigerant flow adjustment and the like of the existing switch valve for refrigerant filling in the prior art.

In order to achieve the aim of the utility model, the utility model is realized by adopting the following technical scheme:

the utility model proposes a switching valve comprising:

the valve body is internally provided with a through circulation cavity, a baffle part is formed in the circulation cavity, the baffle part divides the circulation cavity into an upstream cavity and a downstream cavity, the periphery of the baffle part is fixed on the inner wall of the circulation cavity through a connecting part, and communication holes are formed in the connecting part in a dispersing way and are used for communicating the upstream cavity with the downstream cavity;

a first tube having a first end movably connected to the upstream cavity.

In some embodiments of the utility model, the upstream cavity has internal threads formed on an inner wall thereof, and the first tube has external threads formed on an outer wall thereof at a first end thereof, the first end being threadably coupled within the upstream cavity.

In some embodiments of the utility model, the baffle portion has a plug portion formed thereon that extends in the direction of the upstream cavity and tapers in size.

In some embodiments of the utility model, the inner wall dimension of the first tube is greater than the minimum dimension of the occlusion and less than the maximum dimension of the occlusion.

In some embodiments of the present utility model, a sealing groove is formed on an outer wall of the first end of the first pipe, and a first sealing part is detachably connected in the sealing groove.

In some embodiments of the present utility model, a first limiting portion is formed on an outer wall of the first pipe, an annular first limiting groove is formed on an inner wall of the upstream cavity, a first clamping ring is detachably connected in the first limiting groove, and in an installation state, the first limiting portion is located at an inner side of the first clamping ring.

In some embodiments of the utility model, the outer wall of the second end of the first tube member is formed with external threads.

In some embodiments of the present utility model, the valve further comprises a second pipe, the second pipe and the first pipe are respectively connected to two ends of the valve body in a straight line, a connecting cavity and a butting cavity are formed in the second pipe, the size of the butting cavity is larger than that of the connecting cavity, and the valve body is connected in the butting cavity.

In some embodiments of the present utility model, a second limiting groove is formed in the docking cavity, a second clamping ring is detachably connected to the second limiting groove, an outwardly extending docking end is formed at one end of the valve body, which is connected to the docking cavity, a clamping end face is formed on the docking end, in the installation state, the docking end is connected to the docking cavity, and the second clamping ring is connected to the clamping end face in a contact manner.

In some embodiments of the utility model, the connecting lumen has internal threads formed on a sidewall thereof.

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

the switch valve is linear in whole, the first pipe fitting can be movably connected in the upstream cavity, the circulation gap between the first pipe fitting and the baffle part is changed along with the movement of the first pipe fitting, the speed of refrigerant filling can be conveniently adjusted, and the whole switch valve is simple in structure, low in economic cost, convenient to operate and small in space size.

Other features and advantages of the present utility model will become apparent upon review of the detailed description of the utility model in conjunction with the drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic cut-away view of one embodiment of a proposed switching valve;

FIG. 2 is a schematic view of a valve body structure;

FIG. 3 is a schematic view of the external structure of the switching valve;

FIG. 4 is a schematic diagram of a split structure of the switching valve;

FIG. 5 is a schematic plan view of a switching valve;

FIG. 6 is one of the cross-sectional views A-A of FIG. 5;

FIG. 7 is a second cross-sectional view of A-A in FIG. 5;

FIG. 8 is a third cross-sectional view, A-A, of FIG. 5;

FIG. 9 is a cross-sectional view of a second tube member;

in the drawing the view of the figure,

100. a first pipe fitting; 101. a first end; 102. a second end;

110. a first limit part;

120. a first sealing part;

200. a valve body; 201. a downstream cavity; 202. an upstream cavity;

210. a barrier section; 211. a blocking part;

220. a connection part; 221. a communication hole;

230. a first limit groove;

240. a first snap ring;

250. butt joint ends; 251. clamping the end face;

260. a second snap ring;

270. a gasket;

300. a second pipe fitting;

301. a butt joint inner cavity;

302. a connecting cavity;

310. and the second limit groove.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; may be mechanically coupled, directly coupled, or indirectly coupled via an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed.

Referring to fig. 1-4, the present utility model proposes a switch valve, which is connected to connect a refrigerant pipeline and an external pipeline, wherein the switch valve is opened, a refrigerant is conveyed from the external pipeline to the refrigerant pipeline through the switch valve, the switch valve is closed, and the refrigerant pipeline and the external pipeline are cut off.

Specifically, the on-off valve includes a valve body 200 and a first pipe fitting 100, a through flow chamber is formed in the valve body 200, the flow chamber is used for conveying a refrigerant, a blocking portion 210 is formed in the flow chamber, the blocking portion 210 separates the flow chamber into an upstream chamber 202 and a downstream chamber 201, and a first end 101 of the first pipe fitting 100 is movably connected into the upstream chamber 202.

The first tube member 100 includes a first end 101 and a second end 102, the first end 101 extending into the upstream cavity 202, the second end 102 being adapted for detachable connection to an external conduit.

Referring specifically to fig. 2, the peripheral side of the baffle 210 is fixed to the inner wall of the flow chamber by a connection 220, and communication holes 221 are formed in the connection 220 in a dispersed manner for communicating the upstream chamber 202 with the downstream chamber 201.

The upstream cavity 202 and the downstream cavity 201 are blocked by the baffle part 210 and the connecting part 220, the communication holes 221 are uniformly dispersed on the connecting part 220, the baffle part 210 is provided with a blocking part 211 protruding towards the upstream cavity 202, the tail end of the blocking part 211 is of a tapered structure, and the inner cavity size of the first pipe fitting 100 is larger than the minimum size of the blocking part 211 and smaller than the maximum size of the blocking part 211.

As the first pipe member 100 moves in the upstream chamber 202, the refrigerant is output from the first pipe member 100 into the downstream chamber 201 through the gap between the first pipe member 100 and the blocking portion 211 and the communication hole 221.

Referring to fig. 5 to 8, when the first pipe member 100 gradually approaches the blocking portion 211, the end portion of the blocking portion 211 is gradually inserted into the first pipe member 100, and the passage between the first pipe member 100 and the blocking portion 211 gradually decreases until the blocking portion 211 contacts the first pipe member 100, at which time the on-off valve is closed and the refrigerant filling is completed.

The outer wall of the first tube member 100 is sealingly connected to the inner wall of the upstream chamber 202, and the first tube member 100 moves in parallel within the upstream chamber 202.

In some embodiments of the present utility model, the inner wall of the upstream cavity 202 is formed with internal threads, and the outer wall of the first end 101 of the first tube 100 is formed with external threads, and the first end 101 is threadedly coupled within the upstream cavity 202.

By rotating the first pipe fitting 100, movement of the first pipe fitting 100 in the upstream cavity 202 is achieved, the threaded connection is good in tightness, and leakage between the outer wall of the refrigerant first pipe fitting 100 and the upstream cavity 202 can be reduced.

In order to further improve the sealing performance, a sealing groove is formed on the outer wall of the first end 101 of the first pipe fitting 100, and a first sealing portion 120 is detachably connected in the sealing groove, and in the connected state, the first sealing portion 120 is always located between the upstream cavity 202 and the first pipe fitting 100.

Specifically, the side wall of the upstream cavity 202 includes a threaded section and a sealing section, the inner diameter of the sealing section is slightly larger than the inner diameter of the threaded section, the sealing groove is located at the rear side of the external thread of the first pipe fitting 100, that is, in the connected state, the front end of the first pipe fitting 100 is connected with the threaded section of the upstream cavity 202, and along with the movement of the first pipe fitting 100, the first sealing portion 120 contacts with the side wall of the sealing section to realize further sealing.

The outer wall of the first pipe fitting 100 is provided with a first limiting part 110, the first limiting part 110 is located at the rear side of the sealing groove, the inner wall of the upstream cavity 202 is provided with a first annular limiting groove 230, the first limiting groove 230 is located on the sealing section, a first clamping ring 240 is detachably connected in the first limiting groove 230, and the first limiting part 110 is located at the inner side of the first clamping ring 240 in the installation state.

The snap ring is provided with a notch, certain deformation exists in the radial direction, the diameter of the snap ring is reduced by the internal pressure of the snap ring, and after the snap ring is connected into the first limit groove 230, the snap ring is expanded outwards and reset under the self elastic action and is fixed in the first limit groove 230.

In the process of connecting the first pipe fitting 100 and the valve body 200, first, the first snap ring 240 is detached from the first limiting groove 230, the first sealing portion 120 is connected to the sealing groove, the first end 101 of the first pipe fitting 100 is screwed onto the threaded section of the upstream cavity 202, the position of the first limiting portion 110 is located inside the first limiting groove 230, then, the snap ring is connected to the first limiting groove 230, the outer side of the first pipe fitting 100 is limited, misoperation is prevented, and the first pipe fitting 100 is separated from the upstream cavity 202.

Referring to fig. 4, 7 and 9, a second pipe 300 is further connected to one end of the downstream chamber 201 of the valve body 200, a connection chamber 302 and a docking chamber 301 are formed in the second pipe 300, the docking chamber 301 is larger in size than the connection chamber 302, and the valve body 200 is connected in the docking chamber 301.

In order to fix the position of the valve body 200, a second limiting groove 310 is formed in the abutting inner cavity 301, a second clamping ring 260 is detachably connected to the second limiting groove 310, an outwardly extending abutting end 250 is formed at one end, connected with the abutting inner cavity 301, of the valve body 200, a clamping end face 251 is formed on the abutting end 250, in the installation state, the abutting end 250 is connected with the abutting inner cavity 301, and the second clamping ring 260 is in contact connection with the clamping end face 251.

A gasket 270 is also disposed within the docking cavity 301, the gasket 270 and the second snap ring 260 clamping the docking head 250 into place within the docking cavity 301.

An internal thread is formed on the side wall of the connecting cavity 302, a connecting interface with an external thread is arranged on the refrigerant pipeline, and the second pipe fitting 300 is connected on the refrigerant pipeline through threads, so that the connection between the switch valve and the refrigerant pipeline is realized.

Similarly, the outer wall of the second end 102 of the first tube member 100 may have external threads formed thereon, and the external conduit may be threadably coupled to the first tube member 100.

The switching valve that this application relates to, valve body 200 are sharp shape with first pipe fitting 100, second pipe fitting 300 and are connected, and first pipe fitting 100 movable connection is in the upstream cavity, along with the removal of first pipe fitting 100, and the circulation clearance between first pipe fitting 100 and the separation stop portion 210 changes, conveniently adjusts the speed that the refrigerant was filled, and whole switching valve simple structure, economic cost is low, the simple operation, and the space is small.

In the description of the above embodiments, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is merely illustrative embodiments of the present utility model, and the scope of the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present utility model should be covered by the present utility model, and the scope of the present utility model shall be defined by the appended claims.

Claims (10)

1. A switching valve, characterized by comprising:

the valve body is internally provided with a through circulation cavity, a baffle part is formed in the circulation cavity, the baffle part divides the circulation cavity into an upstream cavity and a downstream cavity, the periphery of the baffle part is fixed on the inner wall of the circulation cavity through a connecting part, and communication holes are formed in the connecting part in a dispersing way and are used for communicating the upstream cavity with the downstream cavity;

a first tube having a first end movably connected to the upstream cavity.

2. The switching valve according to claim 1, wherein,

an inner thread is formed on the inner wall of the upstream cavity, an outer thread is formed on the outer wall of the first end of the first pipe fitting, and the first end is connected into the upstream cavity through threads.

3. The switching valve according to claim 1, wherein,

and a blocking part which extends towards the upstream cavity and gradually receives the size is formed on the baffle part.

4. A switching valve according to claim 3, wherein,

the inner wall dimension of the first tube is greater than the minimum dimension of the blocking portion and less than the maximum dimension of the blocking portion.

5. The switching valve according to claim 1, wherein,

a sealing groove is formed in the outer wall of the first end of the first pipe fitting, and a first sealing part is detachably connected in the sealing groove.

6. The switching valve according to claim 5, wherein,

the outer wall of the first pipe fitting is provided with a first limiting part, the inner wall of the upstream cavity is provided with a first annular limiting groove, a first clamping ring is detachably connected in the first limiting groove, and the first limiting part is positioned on the inner side of the first clamping ring in an installation state.

7. The switching valve according to claim 1, wherein,

an external thread is formed on the outer wall of the second end of the first pipe fitting.

8. The switching valve according to claim 1, wherein,

the valve body is characterized by further comprising a second pipe fitting, wherein the second pipe fitting and the first pipe fitting are respectively and linearly connected to two ends of the valve body, a connecting inner cavity and a butt joint inner cavity are formed in the second pipe fitting, the size of the butt joint inner cavity is larger than that of the connecting inner cavity, and the valve body is connected in the butt joint inner cavity.

9. The on-off valve according to claim 8, wherein,

the novel valve is characterized in that a second limiting groove is formed in the butt joint inner cavity, a second clamping ring is detachably connected to the second limiting groove, an outwardly extending butt joint end is formed at one end, connected with the butt joint inner cavity, of the valve body, a clamping end face is formed on the butt joint end, in an installation state, the butt joint end is connected with the butt joint inner cavity, and the second clamping ring is in contact connection with the clamping end face.

10. The on-off valve according to claim 8, wherein,

and an internal thread is formed on the side wall of the connecting inner cavity.