CN218033840U - Stop valve and air conditioner - Google Patents

Abstract

The application provides a stop valve and air conditioner, this stop valve includes: the valve body is provided with a refrigerant channel, a refrigerant inlet and a refrigerant outlet which are communicated with the refrigerant channel; the fluorine injection plug is arranged at the refrigerant inlet and seals the refrigerant inlet, and a fluorine injection channel communicated with the refrigerant channel is arranged in the fluorine injection plug; the sliding core is arranged in the fluorine injection passage through a return spring so as to open or close the fluorine injection passage; and the one-way circulation block is arranged at the refrigerant outlet so as to enable the refrigerant to flow from the refrigerant channel to the refrigerant outlet in a one-way mode. The stop valve provided by the application fills the refrigerant through the fluorine filling plug, when the refrigerant is filled, the sliding core opens the fluorine filling channel and then flows out from the refrigerant outlet through the one-way circulation block, and the refrigerant is filled conveniently and quickly; when the refrigerant fills to annotate and accomplishes, one-way circulation piece forms first sealed, and the fluorine passageway of annotating is closed to the slip core under reset spring's effect and is formed the second and seal, and double seal effect is better.

Description

Stop valve and air conditioner

Technical Field

The application relates to the technical field of valves, in particular to a stop valve and an air conditioner.

Background

In the field of household refrigeration appliances, the refrigeration system needs to be filled with refrigerant after being evacuated. The refrigerant filling pipe needs to be plugged after the refrigerator is filled with refrigerant.

The existing refrigerant charge is a refrigerant charge poured through a capillary process tube, after filling, a refrigerant filling pipe (made of a red copper pipe) is clamped flat by using a flat-nose sealing clamp, and then the opening of the filling pipe is sealed by using high-temperature gas welding. High temperature gas welding requires the storage of oxygen and acetylene and a special welding gun at the welding site. Because acetylene is flammable and explosive hazardous gas, a fire hazard is easily caused. When a refrigerant filling pipe is welded at high temperature, refrigerant in a refrigerating system is heated, if the clamping degree of the flat nozzle sealing clamp fails slightly, a small amount of refrigerant leaks, and the refrigerant is burned at high temperature and decomposed into toxic gas to damage the health of a welder.

SUMMERY OF THE UTILITY MODEL

The application provides a stop valve and air conditioner to solve the problem that current refrigeration utensil refrigerant fills to annotate trouble and leakproofness is poor.

To achieve the above object, the present application provides a shut-off valve comprising:

the valve body is provided with a refrigerant channel, a refrigerant inlet and a refrigerant outlet which are communicated with the refrigerant channel;

the fluorine injection plug is arranged at the refrigerant inlet and seals the refrigerant inlet, and a fluorine injection channel communicated with the refrigerant channel is arranged in the fluorine injection plug;

the sliding core is arranged in the fluorine injection channel through a return spring so as to open or close the fluorine injection channel;

and the one-way circulation block is arranged at the refrigerant outlet so as to enable the refrigerant to flow from the refrigerant channel to the refrigerant outlet in a one-way mode.

Optionally, the fluorine injection plug comprises an extending section, a sealing section and a fixing section which are sequentially arranged along the refrigerant inlet direction; the extending section extends into the refrigerant channel from the refrigerant inlet, and the sliding core is arranged in the extending section; the sealing section is in a circular truncated cone shape, and a conical surface matched with the sealing section is arranged on the inner wall of the valve body at the refrigerant inlet; the fixed section is in threaded connection with the refrigerant inlet.

Optionally, the side surface of the fixed segment is provided with two opposite cutting surfaces.

Optionally, the sliding core comprises a disc and a central round rod arranged on the disc, a partition plate is arranged at one end of the extending section, which is far away from the fixed section, and a central through hole and a plurality of via holes are formed in the partition plate; the central round rod extends into the extending section through the central through hole, and the outer diameter of the round disc is larger than that of the extending section; the center round rod deviates from one end of the disc and is provided with a limiting rod, and the reset spring is sleeved on the center round rod and is positioned between the limiting rod and the partition plate.

Optionally, one side of the disc, which is close to the partition plate, is provided with an annular mounting groove, a sealing gasket is arranged in the mounting groove, and the central radius of the sealing gasket is matched with the circumferential radius of the extending section.

Optionally, the inner diameter of the central through hole is matched with the outer diameter of the central round rod.

Optionally, the limiting rod is detachably arranged on the central round rod.

Optionally, the one-way circulation piece includes along round platform section and cylinder section that refrigerant export direction set gradually, the refrigerant exit be provided with the sealed chamfer of round platform section adaptation, the periphery axial of cylinder section is provided with a plurality of slider edges, adjacent two form between the slider edge and overflow the clearance.

Optionally, a check ring is further disposed at the refrigerant outlet, and the one-way flow block is disposed between the sealing chamfer and the check ring.

In order to achieve the above object, the present application further provides an air conditioner including the shut valve as described above.

In the technical scheme provided by the application, the stop valve comprises a valve body, a fluorine injection plug, a sliding core and a one-way circulation block; the valve body is provided with a refrigerant channel, a refrigerant inlet and a refrigerant outlet which are communicated with the refrigerant channel; the fluorine injection plug is arranged at the refrigerant inlet and seals the refrigerant inlet, and a fluorine injection channel communicated with the refrigerant channel is arranged in the fluorine injection plug; the sliding core is arranged in the fluorine injection channel through a return spring so as to open or close the fluorine injection channel; the one-way circulation block is arranged at the refrigerant outlet so that the refrigerant flows from the refrigerant channel to the refrigerant outlet in a one-way mode. In the application, the stop valve can fill the refrigerant through the fluorine filling plug, when the refrigerant is filled, the refrigerant pushes the sliding core to open the fluorine filling channel, the refrigerant enters the refrigerant channel from the fluorine filling channel and then flows out from the refrigerant outlet through the one-way circulation block, and the refrigerant is filled conveniently and quickly; when the refrigerant is filled, the one-way flow block forms a first seal, the sliding core closes the fluorine injection channel under the action of the return spring to form a second seal, and the double sealing effect is better.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic view of a stop valve according to the present application;

FIG. 2 is an enlarged view of area A of FIG. 1;

FIG. 3 is an enlarged view of area B of FIG. 1;

FIG. 4 is a schematic structural diagram of the stop valve of the present application after completion of refrigerant injection;

FIG. 5 is an enlarged view of area A of FIG. 4;

FIG. 6 is an enlarged view of area A of FIG. 4;

FIG. 7 is a schematic cross-sectional elevation view of a fluorine-filled plug of the stop valve of the present application;

FIG. 8 is a schematic top view of a fluorine-filled plug of the stop valve of the present application;

FIG. 9 is a schematic cross-sectional elevation view of a sliding core in the shutoff valve of the present application;

FIG. 10 is a schematic diagram of the construction of the sliding core of the shut-off valve of the present application from the right;

FIG. 11 is a schematic diagram of the construction of the one-way flow block of the shut-off valve of the present application in elevation;

fig. 12 is a schematic top view of the one-way flow block of the shutoff valve of the present application.

The reference numbers illustrate:

the implementation, functional features and advantages of the object of the present application will be further explained with reference to the embodiments, and with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be considered as limiting the present application. Furthermore, the terms "first", "second" and "first" 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, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, the word "exemplary" is used to mean "serving as an example, instance, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is presented to enable any person skilled in the art to make and use the application. In the following description, details are set forth for the purpose of explanation. It will be apparent to one of ordinary skill in the art that the present application may be practiced without these specific details. In other instances, well-known structures and processes are not set forth in detail in order to avoid obscuring the description of the present application with unnecessary detail. Thus, the present application is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.

The embodiment of the application provides a stop valve, and the detailed description is given below.

Please refer to fig. 1 to 6, wherein fig. 1 is a schematic structural diagram of the stop valve of the present application when the refrigerant is injected, and fig. 4 is a schematic structural diagram of the stop valve of the present application when the refrigerant injection is completed. In an embodiment of the present application, the shutoff valve includes:

the valve body 10 is provided with a refrigerant channel 11, and a refrigerant inlet 111 and a refrigerant outlet 114 which are communicated with the refrigerant channel 11;

the fluorine injection plug 20 is arranged at the refrigerant inlet 111, the fluorine injection plug 20 seals the refrigerant inlet 111, and a fluorine injection channel 21 communicated with the refrigerant channel 11 is arranged in the fluorine injection plug 20;

a slide core 30, the slide core 30 being installed in the fluorine injection passage 21 by a return spring 31 to open or close the fluorine injection passage 21;

and the one-way flow block 40 is arranged at the refrigerant outlet 114, so that the refrigerant flows from the refrigerant channel 11 to the refrigerant outlet 114 in a one-way manner.

It will be appreciated that the shut-off valve may be fitted to the capillary tube of some refrigeration appliances for filling the refrigeration system with refrigerant. Taking an air conditioner as an example, the stop valve further comprises a capillary connecting pipe 12 and a connecting pipe 13, wherein one end of a capillary pipe (not shown) of the air conditioner is connected with the capillary connecting pipe 12, and the other end of the capillary pipe (not shown) of the air conditioner is connected with an outlet of a condenser (not shown); the connecting pipe 13 is communicated with the refrigerant channel 11 through the refrigerant outlet 114, and the other end of the connecting pipe 13 is connected with the outlet of the condenser through a transition copper pipe, that is, the capillary pipe is connected with the transition copper pipe in parallel.

In the technical scheme provided by the application, the stop valve can fill the refrigerant through the fluorine filling plug 20, when the refrigerant is filled, the refrigerant pushes the sliding core 30 to open the fluorine filling channel 21, the refrigerant enters the refrigerant channel 11 from the fluorine filling channel 21 and then flows out from the refrigerant outlet 114 through the one-way circulation block 40, and the refrigerant is filled conveniently and quickly; when the refrigerant is filled completely, the one-way flow block 40 forms a first seal, the sliding core 30 closes the fluorine filling channel 21 under the action of the return spring 31 to form a second seal, and the double sealing effect is better.

Specifically, referring to fig. 2, fig. 5, fig. 7 and fig. 8, in the embodiment of the present application, the fluorine filling plug 20 includes an extending section 22, a sealing section 23 and a fixing section 24, which are sequentially arranged along the direction of the refrigerant inlet 111; the extending section 22 extends into the refrigerant channel 11 from the refrigerant inlet 111, and the sliding core 30 is disposed in the extending section 22; the sealing section 23 is in a circular truncated cone shape, and a conical surface 112 matched with the sealing section 23 is arranged on the inner wall of the valve body 10 at the refrigerant inlet 111; the fixing section 24 is screwed to the refrigerant inlet 111. It can be understood that, when the fluorine injection plug 20 is entirely received in the refrigerant inlet 111, when it is installed, the extending section 22 extends into the refrigerant inlet 111, the refrigerant inlet 111 is provided with an internal thread 113, the fixing section 24 is provided with an external thread 242, and when the fixing section 24 is rotationally fixed to the refrigerant inlet 111, the surface of the sealing section 23 is tightly attached to the conical surface 112, so as to complete the sealing of the refrigerant inlet 111.

Specifically, referring to fig. 8 again, in the embodiment of the present application, the side surface of the fixing segment 24 is provided with two opposite cutting surfaces 241. It can be understood that the cross-sectional shape of the fixed segment 24 is formed by two centrosymmetric circular arcs and two centrosymmetric straight lines, and the two straight lines correspond to the cutting surface 241. When the fluorine filling plug 20 is mounted to the coolant inlet 111, the cutting surface 241 may be clamped by a clamping tool and then screwed to the internal thread 113 of the coolant inlet 111.

Further, referring to fig. 2, fig. 5, fig. 9 and fig. 10, in the embodiment of the present application, the sliding core 30 includes a circular disc 32 and a central circular rod 33 disposed on the circular disc 32, a partition 221 is disposed at one end of the extending section 22 away from the fixing section 24, and a central through hole 222 and a plurality of through holes 223 are disposed on the partition 221; the central round rod 33 extends into the extending section 22 through the central through hole 222, and the outer diameter of the disc 32 is larger than that of the extending section 22; the central round rod 33 deviates from one end of the disc 32 and is provided with a limiting rod 34, the reset spring 31 is sleeved on the central round rod 33 and is positioned between the limiting rod 34 and the partition plate 221. It can be understood that when refrigerant is not injected, the return spring 31 is in a compressed state, and the disk 32 abuts against the outlet of the protruding section 22 to close the fluorine injection channel 21; when the refrigerant is injected, the refrigerant flows out through the plurality of through holes 223 and applies a pressure to the disc 32, the return spring 31 is further compressed, the disc 32 opens the fluorine injection channel 21, and the refrigerant flows out through the plurality of through holes 223 and flows into the refrigerant channel 11 through a gap between the disc 32 and the inner wall of the refrigerant channel 11; when the refrigerant injection is completed, the disc 32 loses the refrigerant pressure, the return spring 31 returns to the previous compression state, and the disc 32 seals the outlet of the protruding section 22 again to prevent the refrigerant from leaking.

Specifically, referring to fig. 9 and 10 again, in the embodiment of the present application, an annular mounting groove 321 is formed on a surface of the disc 32 close to the partition 221, a sealing gasket 322 is disposed in the mounting groove 321, and a central radius of the sealing gasket 322 is matched with a circumferential radius of the protruding section 22. It can be understood that the export of stretching into section 22 is the ring form, the central radius of sealed pad 322 with stretch into the circumference radius looks adaptation of section 22 can understand the central radius of sealed pad 322 slightly is greater than stretch into the circumference radius of section 22, when disc 32 seals stretch into the export of section 22, sealed pad 322 just butt the outer wall in the exit of section 22 stretches into. The sealing pad 322 may be made of a flexible material such as rubber or plastic with pressure resistance and corrosion resistance, and the sealing pad 322 can make the disc 32 have better sealing performance.

Specifically, in the present embodiment, the inner diameter of the central through hole 222 is matched with the outer diameter of the central circular rod 33. It can be understood that the inner diameter of the central through hole 222 is slightly larger than the outer diameter of the central rod 33, so that the central rod 33 can just slide in the central through hole 222, and the stability of the sliding core 30 can be ensured.

Specifically, in the present embodiment, the limiting rod 34 is detachably disposed on the central circular rod 33. It can be understood that, when the sliding core 30 is assembled, the return spring 31 is sleeved on the central circular rod 33, and then the limiting rod 34 is installed on the central circular rod 33. In an embodiment, the limiting rod 34 may be mounted on the central rod 33 by a bolt.

Further, please refer to fig. 3, fig. 6, fig. 11 and fig. 12 together, in the embodiment of the present application, the one-way circulation block 40 includes a circular platform section 41 and a cylindrical section 42 sequentially arranged along the direction of the refrigerant outlet 114, a sealing chamfer 115 adapted to the circular platform section 41 is arranged at the refrigerant outlet 114, a plurality of sliding block edges 421 are axially arranged at the periphery of the cylindrical section 42, and an overflow gap 422 is formed between two adjacent sliding block edges 421. It can be understood that, when a refrigerant is injected, the refrigerant flows from the refrigerant channel 11 to the refrigerant outlet 114, at this time, the one-way flow block 40 slides downward under the pushing of the refrigerant, the circular platform section 41 is separated from the sealing chamfer 115, and the refrigerant flows out from the overflow gap 422 of the cylindrical section 42 and then flows into the condenser of the air conditioner through the connecting pipe 13; when the refrigerant is injected, the one-way circulation block 40 slides upwards under the pressure of the refrigerant inside the system, and at this time, the surface of the circular platform section 41 is tightly attached to the sealing chamfer 115, so that the refrigerant inside the system is prevented from entering the refrigerant channel 11, and the refrigerant leakage of the system is further effectively prevented.

Specifically, referring to fig. 3 and fig. 6 again, in the embodiment of the present application, a check ring 116 is further disposed at the refrigerant outlet 114, and the one-way flow block 40 is disposed between the sealing chamfer 115 and the check ring 116. It can be understood that, when the refrigerant is injected, the one-way flow block 40 slides downward under the pushing of the refrigerant, and the one-way flow block 40 is limited to slide between the sealing chamfer 115 and the anti-return ring 116 by the anti-return ring 116.

When the stop valve provided by the application is used for injecting the refrigerant, the refrigerant is injected from the fluorine injection plug 20 by using the fluorine injection gun, the refrigerant flowing out of the fluorine injection gun has higher pressure, the refrigerant flows out through the plurality of through holes 223 and provides pressure for the disc 32, the return spring 31 is further compressed, the disc 32 opens the fluorine injection channel 21, and the refrigerant flows out of the plurality of through holes 223 and flows into the refrigerant channel 11 from a gap between the disc 32 and the inner wall of the refrigerant channel 11; then, the refrigerant flows from the refrigerant channel 11 to the refrigerant outlet 114, at this time, the one-way flow block 40 slides downward under the pushing of the refrigerant, the circular platform section 41 is separated from the sealing chamfer 115, and the refrigerant flows out from the flow passage gap 422 of the cylindrical section 42 and then flows into the condenser of the air conditioner through the connecting pipe 13. When the refrigerant injection is completed, the refrigerant pressure of the fluorine injection gun is not generated, the disc 32 loses the refrigerant pressure, the return spring 31 is restored to the previous compression state, and the disc 32 seals the outlet of the extending section 22 again to prevent the refrigerant from leaking; furthermore, the one-way circulation block 40 slides upwards under the pressure of the refrigerant inside the system, and at this time, the surface of the circular platform section 41 is tightly attached to the sealing chamfer 115, so that the refrigerant inside the system is prevented from entering the refrigerant channel 11, and further the leakage of the refrigerant inside the system is effectively prevented. The stop valve fills the refrigerant through annotating fluorine end cap 20, convenient and fast, and when the refrigerant fills to annotate and annotates the completion, one-way circulation piece 40 forms first sealed, slide core 30 closes under the effect of reset spring 31 annotate fluorine passageway 21 and form the second and seal, and double seal effect is better.

The application further provides an air conditioner, the air conditioner includes the stop valve of any one of the above-mentioned embodiments, the specific structure of the stop valve refers to the above-mentioned embodiments, and as the air conditioner adopts all technical solutions of all the above-mentioned embodiments, all the beneficial effects brought by the technical solutions of the above-mentioned embodiments are at least achieved, and are not repeated here.

The above detailed description is provided for a stop valve and an air conditioner provided in the embodiments of the present application, and specific examples are applied herein to explain the principles and embodiments of the present application, and the above description of the embodiments is only used to help understanding the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims (10)

1. A shut-off valve, comprising:

the valve body is provided with a refrigerant channel, a refrigerant inlet and a refrigerant outlet which are communicated with the refrigerant channel;

the fluorine injection plug is arranged at the refrigerant inlet and seals the refrigerant inlet, and a fluorine injection channel communicated with the refrigerant channel is arranged in the fluorine injection plug;

the sliding core is installed in the fluorine injection channel through a return spring so as to open or close the fluorine injection channel;

and the one-way circulation block is arranged at the refrigerant outlet so as to enable the refrigerant to flow from the refrigerant channel to the refrigerant outlet in a one-way mode.

2. The stop valve of claim 1, wherein the fluorine injection plug comprises an extending section, a sealing section and a fixing section which are sequentially arranged along the refrigerant inlet direction; the extending section extends into the refrigerant channel from the refrigerant inlet, and the sliding core is arranged in the extending section; the sealing section is in a circular truncated cone shape, and a conical surface matched with the sealing section is arranged on the inner wall of the valve body at the refrigerant inlet; the fixed section is in threaded connection with the refrigerant inlet.

3. The shut-off valve of claim 2, wherein the side of said fixed section is provided with two opposing cutting surfaces.

4. The stop valve of claim 2, wherein the sliding core comprises a disk and a central round rod arranged on the disk, a partition plate is arranged at one end of the extending section, which is far away from the fixed section, and a central through hole and a plurality of through holes are formed in the partition plate; the central round rod extends into the extending section through the central through hole, and the outer diameter of the disc is larger than that of the extending section; the center round rod deviates from one end of the disc and is provided with a limiting rod, and the reset spring is sleeved on the center round rod and is positioned between the limiting rod and the partition plate.

5. The shut-off valve of claim 4, wherein said disk is provided with an annular mounting groove on a side thereof adjacent said partition, said mounting groove being provided with a gasket having a center radius adapted to a circumferential radius of said inlet section.

6. The shut-off valve of claim 4, wherein the inner diameter of said central through bore is adapted to the outer diameter of said central rod.

7. The shut-off valve of claim 4, wherein said stop rod is removably disposed on said central rod.

8. The stop valve of claim 1, wherein the one-way flow block comprises a circular truncated cone section and a cylindrical section which are sequentially arranged along the refrigerant outlet direction, a sealing chamfer matched with the circular truncated cone section is arranged at the refrigerant outlet, a plurality of sliding block edges are axially arranged on the periphery of the cylindrical section, and an overflowing gap is formed between every two adjacent sliding block edges.

9. The stop valve of claim 8, wherein the refrigerant outlet is further provided with a check ring, and the one-way flow block is disposed between the sealing chamfer and the check ring.

10. An air conditioner characterized in that it comprises a shut-off valve according to any one of claims 1 to 9.

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