Stop valve and air conditioner with same

Abstract

The stop valve comprises a valve body and a valve bonnet, the valve body comprises a filling connector, a filling opening is formed in the outer end face of the filling connector, the valve bonnet comprises a bonnet body, a matching hole with one side open is defined by the bonnet body, the filling connector extends into the matching hole and is connected with the matching hole through a detachable structure, and the filling connector is connected with the valve bonnet through a detachable structure. The matching hole and the filling connector are matched to form a line contact sealing structure, and the sealing structure is located on the side, close to the filling opening, of the detachable structure and surrounds the filling opening. The line contact sealing structure surrounds the filling opening to isolate the filling opening from the external space of the valve bonnet, the sealing effect is good, the situation of refrigerant leakage can be reduced, the use safety of the stop valve is improved, and the accident occurrence probability is reduced.

Description

Technical Field

[0001] The utility model relates to the field of valve equipment, in particular to a stop valve and an air conditioner with the same. Background Art

[0002] As the concept of environmental protection continues to grow, the demand for environmentally friendly refrigerants is growing. R454B refrigerant is a non-azeotropic environmentally friendly refrigerant that does not deplete the ozone layer and has a low global warming potential (GWP). R454B is highly environmentally friendly and is therefore widely used in air-conditioning equipment. However, R45B is slightly flammable and has the risk of combustion or even explosion when the refrigerant leaks. The sealing problem of the refrigerant in the air-conditioning equipment still needs to be solved. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a stop valve, the filling joint of the stop valve has strong sealing performance, improves the use safety of the stop valve, and reduces the probability of accidents.

[0004] The utility model also provides an air conditioner with the stop valve.

[0005] The stop valve according to the first aspect of the utility model comprises: a valve body, the valve body comprises a filling connector, the outer end face of the filling connector has a filling port; a valve bonnet, the valve bonnet comprises a cap body, the cap body defines a mating hole open on one side, the filling connector extends into the mating hole and is connected to the mating hole through a detachable structure, the mating hole and the filling connector cooperate to form a line contact sealing structure, the sealing structure is located on a side of the detachable structure close to the filling port, and is arranged around the filling port.

[0006] According to the stop valve of the embodiment of the utility model, the valve cap is connected to the filling connector, and a line contact sealing structure is formed by the matching hole and the filling connector cooperating with each other. The sealing structure surrounds the filling port to isolate the filling port and the external space of the valve cap, thereby sealing the filling port. The line contact sealing structure has a good sealing effect, which can reduce the occurrence of refrigerant leakage, improve the safety of the stop valve, and reduce the probability of accidents.

[0007] In some embodiments, the filling joint includes a sealing section, the axial end face of the sealing section serves as the outer end face to be provided with the filling port, the outer peripheral surface of the sealing section is formed as an inclined annular surface inclined to the axial direction, the matching hole is a stepped hole to form a step surface between two adjacent hole sections, and the edge of the step surface is in linear contact with the inclined annular surface to form the sealing structure.

[0008] In some embodiments, the stop valve also includes a sealing ring, which is arranged in the matching hole and sealingly fitted between the hole wall of the matching hole and the inclined annular surface. The sealing ring is arranged close to the filling port relative to the sealing structure, and the sealing ring is arranged around the filling port.

[0009] In some embodiments, the filling connector further comprises a connecting section, which is located on a side of the sealing section away from the filling port and is threadedly connected to the matching hole to form the detachable structure.

[0010] In some embodiments, the valve cap further includes a protrusion, which protrudes from the axial side and / or the circumferential side of the cap body, and the protrusion alone or together with the cap body defines a warning area.

[0011] In some embodiments, the valve bonnet satisfies at least one of conditions one, two and three. Condition one is that the length of the warning area is greater than or equal to a specified warning size, and the length direction of the warning area is the axial or radial direction of the bonnet body; condition two is that the valve bonnet is a plastic part; condition three is that the warning area is a specified warning color.

[0012] In some embodiments, the protrusion includes: a first protrusion, the first protrusion protrudes from the circumferential side of the cap body, there are two first protrusions and they are symmetrically arranged on both radial sides of the cap body, the two first protrusions and the cap body jointly define the warning area, and the radial direction where the two first protrusions are located is the length direction of the warning area.

[0013] In some embodiments, the protrusion includes: a second protrusion, the second protrusion protrudes on the axial side of the open end of the cap body, and is constructed as an annular structure arranged around the filling connector, the second protrusion alone defines a warning area, the cross-section of the second protrusion is a circular ring, and the diameter of the maximum cross-section of the second protrusion is the length of the warning area.

[0014] In some embodiments, the protrusion includes: a third protrusion, the third protrusion protrudes on the axial side of the closed end, the third protrusion and the cap body together define the warning area, and the axial direction of the cap body is the length direction of the warning area.

[0015] In some embodiments, the third protrusion is formed into a hollow cylindrical shape, and the cross-section of the outer peripheral surface of the third protrusion is larger than the cross-section of the matching hole; or, the third protrusion is formed into a solid columnar shape, and the cross-section of the outer peripheral surface of the third protrusion is smaller than the cross-section of the matching hole.

[0016] An air conditioner according to a second aspect of the utility model comprises the stop valve according to the first aspect of the utility model.

[0017] According to the air conditioner of the utility model, by providing the stop valve of the first aspect, the sealing of the refrigerant inside the air conditioner can be improved, the safety of the use of the air conditioner can be improved, and it can also serve as a warning, which can reduce the occurrence of accidental touches and remind operators to strictly follow the regulations, thereby reducing the probability of accidents and further improving the safety of the use of the air conditioner.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a stop valve according to an embodiment of the utility model;

[0020] Figure 2 is based on Figure 1 a side view of the stop valve of the illustrated example;

[0021] Figure 3 is based on Figure 2 AA section view of the example shown;

[0022] Figure 4 is based on Figure 3 A partial enlarged view of region B of the example shown;

[0023] Figure 5 is based on Figure 4 A partial enlarged view of region C of the example shown;

[0024] Figure 6 is a structural schematic diagram of a stop valve according to another embodiment of the utility model;

[0025] Figure 7 is based on Figure 6 A front view of a valve bonnet of one embodiment of the stop valve shown;

[0026] Figure 8 It is a structural schematic diagram of a stop valve according to another embodiment of the utility model;

[0027] Fig. 9 is based on Figure 8 A front view of a valve bonnet of one embodiment of the stop valve shown;

[0028] Fig.10 is based on Figure 1 A cross-sectional view of a valve bonnet of one embodiment of the stop valve shown;

[0029] Fig.11is based on Figure 1 A sectional view of a valve bonnet of another embodiment of a stop valve is shown.

[0030] Reference numerals:

[0031] Stop valve 100;

[0032] Valve body 1; filling joint 11; filling port 111; sealing section 112; inclined annular surface 1121; connecting section 113; sealing structure 12; detachable structure 13;

[0033] Valve bonnet 2; bonnet body 2a; matching hole 21; first hole section 211; second hole section 212; hole wall 22; first hole wall 221; second hole wall 222; step surface 223; protrusion 2b; first protrusion 23; second protrusion 24; third protrusion 25; circular ring platform 26; open end 27; closed end 28;

[0034] Sealing ring 3;

[0035] Warning area 4a. DETAILED DESCRIPTION

[0036] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0037] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the applicability of other processes and / or the use of other materials.

[0038] The stop valve 100 according to an embodiment of the first aspect of the utility model is described below with reference to the accompanying drawings.

[0039] According to some embodiments of the present invention, the stop valve 100 is as follows: Figure 1-Figure 3As shown, the stop valve 100 includes: a valve body 1 and a valve bonnet 2, the valve body 1 includes a filling connector 11, the outer end surface of the filling connector 11 has a filling port 111, the valve bonnet 2 includes a cap body 2a, the cap body 2a defines a mating hole 21 open on one side, the filling connector 11 extends into the mating hole 21 and is connected to the mating hole 21 through a detachable structure 13, the mating hole 21 cooperates with the filling connector 11 to form a line contact sealing structure 12, the sealing structure 12 is located on a side of the detachable structure 13 close to the filling port 111, and is arranged around the filling port 111.

[0040] The stop valve 100 of the first embodiment of the utility model is used for temperature control equipment, such as air conditioners, etc. The following description is made by taking the stop valve 100 used for air conditioners as an example to facilitate the description of the utility model and the understanding of the utility model.

[0041] The stop valve 100 is provided with a filling joint 11, and the valve cap 2 is detachably provided on the filling joint 11. When the valve cap 2 is separated from the filling joint 11, the refrigerant can be filled into the air conditioner through the filling port 111. The filling joint 11 and the matching hole 21 are connected by a detachable structure 13. For example, the filling joint 11 and the matching hole 21 are connected by a threaded structure. For another example, the filling joint 11 and the matching hole 21 are connected by an interference fit between the hole and the shaft. This is only for the convenience of describing and understanding the present invention, and does not indicate or imply that the filling joint 11 and the matching hole 21 must be connected by the above-mentioned detachable structure 13, so the limitation of the present invention cannot be understood.

[0042] When the valve cap 2 is connected to the charging connector 11, the charging connector 11 extends into the matching hole 21, and the charging port 111 on the outer end surface of the charging connector 11 also extends into the matching hole 21. The matching hole 21 and the charging connector 11 cooperate with each other to form a sealing structure 12. The sealing structure 12 surrounds the charging port 111 and is in line contact with the charging connector 11. The sealing structure 12 is constructed as an annular structure surrounding the charging port 111. The sealing structure 12 divides the space in the matching hole 21 into an internal space and an external space that are isolated from each other. The charging port 111 is arranged in the internal space. The sealing structure 12 isolates the charging port 111 from the external space, and also isolates the charging port 111 from the external space outside the valve cap 2, and seals the charging port 111. In addition, the sealing effect of the sealing structure 12 in line contact is better, which can reduce the occurrence of refrigerant leakage and improve the safety of the stop valve 100.

[0043] The sealing structure 12 is formed by utilizing the structure of the filling joint 11 and the structure of the valve cap 2 to cooperate with each other. After the valve cap 2 and the filling joint 11 are connected, the filling port 111 can be sealed, which is simple to operate and easy to use.

[0044] According to the stop valve 100 of the embodiment of the utility model, the valve cap 2 is connected to the filling connector 11, and a line contact sealing structure 12 is formed by cooperating with the matching hole 21 and the filling connector 11. The sealing structure 12 surrounds the filling port 111 to isolate the filling port 111 from the external space of the valve cap 2, and seals the filling port 111. The sealing effect of the line contact sealing structure 12 is better, which can reduce the occurrence of refrigerant leakage, improve the safety of the stop valve 100, and reduce the probability of accidents.

[0045] In some embodiments of the present invention, Figure 4 and Figure 5 As shown, the filling joint 11 includes a sealing section 112, the axial end face of the sealing section 112 serves as an outer end face to be provided with a filling port 111, the outer peripheral surface of the sealing section 112 is formed as an inclined annular surface 1121 inclined to the axial direction, the matching hole 21 is a stepped hole to form a step surface 223 between two adjacent hole sections, and the edge of the step surface 223 is in line contact with the inclined annular surface 1121 to form a sealing structure 12.

[0046] like Figure 4 and Figure 5 As shown, the hole wall 22 of the matching hole 21 includes a first hole wall 221 and a second hole wall 222, the first hole wall 221 defines a first hole section 211, the second hole wall 222 defines a second hole section 212, the aperture of the first hole section 211 is smaller than the aperture of the second hole section 212 so that the matching hole 21 is configured as a stepped hole, and the first hole wall 221 and the second hole wall 222 are spaced apart in the radial direction of the cap body 2a. The first hole wall 221 and the second hole wall 222 are connected by a step surface 223, and the first hole wall 221, the step surface 223 and the second hole wall 222 are configured as steps to form a step surface 223 between adjacent first hole sections 211 and second hole sections 212.

[0047] The edge of the step surface 223 close to the center line of the matching hole 21 is in line contact with the inclined annular surface 1121, thereby forming a line contact sealing structure 12. The inclined annular surface 1121 is configured as an inclined surface inclined to the axis of the cap body 2a, which is conducive to the abutment of the edge of the step surface 223 with the inclined annular surface 1121, thereby improving the sealing effect.

[0048] In some embodiments of the utility model, the step surface 223 extends in a direction perpendicular to the axis of the cap body 2a, that is, the step surface 223 extends in a radial direction of the cap body 2a, the angle between the step surface 223 and the first hole wall 221 is a right angle, the step surface 223 and the inclined annular surface 1121 have an angle, the edge of the step surface 223 connected to the first hole wall 221 and the inclined annular surface 1121 abut against each other, thereby forming a line contact sealing structure 12 surrounding the filling port 111 to seal the filling port 111.

[0049] In other embodiments of the present invention, Figure 4 and Figure 5 As shown, the extension direction of the step surface 223 has an angle with the axial direction of the cap body 2a, and the step surface 223 has an angle with the inclined annular surface 1121, and the edge of the step surface 223 connected to the first hole wall 221 and the inclined annular surface 1121 abut against each other, thereby forming a line contact sealing structure 12 surrounding the filling port 111.

[0050] In some further embodiments of the present invention, Figure 4 and Figure 5 As shown, the step surface 223 extends from the filling joint 11 to the valve bonnet 2 close to the center line of the matching hole 21, and the step surface 223 and the inclined annular surface 1121 have an angle, so that the edge of the step surface 223 and the inclined annular surface 1121 can be in line contact and abutment. And by setting the step surface 223 to extend from the filling joint 11 to the valve bonnet 2 close to the center line of the matching hole 21, the structural strength of the step surface 223 can be improved, and the working reliability of the valve bonnet 2 can be improved. It is worth noting that the step surface 223 and the inclined annular surface 1121 are both inclined to the axial extension, and the inclination angle of the step surface 223 with the axis is greater than the inclination angle of the inclined annular surface 1121 with the axis, so as to avoid interference between the step surface 223 and the inclined annular surface 1121.

[0051] In some embodiments of the present invention, Figure 3 and Figure 4 As shown, the stop valve 100 also includes a sealing ring 3, which is arranged in the matching hole 21 and sealingly fitted between the hole wall 22 of the matching hole 21 and the inclined annular surface 1121. The sealing ring 3 is arranged close to the filling port 111 relative to the sealing structure 12, and the sealing ring 3 is arranged around the filling port 111.

[0052] The sealing ring 3 is arranged around the filling hole to isolate the filling port 111 from the external space of the valve cap 2, and the sealing ring 3 forms a primary seal; outside the sealing ring 3, the sealing structure 12 is arranged around the filling port 111 to isolate the filling port 111 from the external space of the valve cap 2, and the sealing structure 12 forms a secondary seal. By arranging the sealing ring 3, the sealing effect of the filling port 111 can be further improved, and the occurrence of refrigerant leakage can be further reduced. It can be used in occasions with higher sealing requirements, thereby improving the safety of the stop valve 100 and reducing the probability of accidents.

[0053] like Figure 4As shown, the sealing ring 3 is arranged between the first hole wall 221 and the inclined annular surface 1121. When the filling connector 11 and the matching hole 21 are connected by the detachable structure 13, the first hole wall 221 and the inclined annular surface 1121 clamp the sealing ring 3. The sealing ring 3 is deformed and tightly stopped between the first hole wall 221 and the inclined annular surface 1121. At the same time, the edge of the step surface 223 is in line contact with the inclined annular surface 1121 to seal the filling port 111.

[0054] It is worth noting that if the sealing requirement is not so high, since the utility model has adopted the line contact sealing structure 12 for sealing, the sealing ring can be omitted, thereby reducing the manufacturing cost of the stop valve 100.

[0055] In some embodiments of the present invention, Figure 4 As shown, the filling connector 11 further includes a connecting section 113 , which is located on a side of the sealing section 112 away from the filling port 111 and is threadedly connected to the matching hole 21 to form a detachable structure 13 .

[0056] The hole wall 22 of the matching hole 21 has an internal thread, the outer surface of the connecting section 113 has an external thread, and the cap body 2a and the filling joint 11 are screwed together through the matching threads of the internal thread and the external thread, and the internal thread and the external thread together form a detachable structure 13. The cap body 2a and the filling joint 11 are threadedly matched and stably connected, which improves the working reliability of the valve cap 2, and the threaded matching can improve the disassembly and assembly efficiency of the valve cap 2, and facilitate the disassembly and assembly operation of the valve cap 2.

[0057] In some embodiments of the present invention, the valve bonnet 2 is a plastic part, which facilitates the manufacture of the valve bonnet 2 and can reduce the manufacturing cost of the valve bonnet 2 .

[0058] By providing a sealing structure 12 with line contact between the valve bonnet 2 and the filling connector 11, which surrounds the filling port 111, the sealing effect of the filling port 111 is effectively improved. Therefore, a valve bonnet 2 made of plastic can be used accordingly, and the working reliability of the valve bonnet 2 can still be guaranteed, thereby improving the safety of the stop valve 100.

[0059] In some embodiments of the present invention, Figure 6 and Figure 7 As shown, the valve cap 2 further comprises a protrusion 2b, which protrudes from the axial side and / or the circumferential side of the cap body 2a. The protrusion 2b alone or the protrusion 2b and the cap body 2a together define a warning area 4a.

[0060] In the related art, new refrigerants do not deplete the ozone layer, have low global warming potential, and are much more environmentally friendly. For example, R454B refrigerant is a non-azeotropic environmentally friendly refrigerant that does not deplete the ozone layer and has low global warming potential, so it is widely used in air conditioners. However, R454B refrigerant is slightly flammable, and the process of filling R454B into the air conditioner through the filling port is dangerous. Improper operation may cause refrigerant leakage or even explosion.

[0061] In the embodiment of the utility model, a warning area 4a is formed on the valve bonnet 2, so that the valve bonnet 2 can not only seal the filling port 111, but also serve as a warning to prevent non-operating personnel from touching it, which helps to quickly identify the filling connector 11, reduce the occurrence of accidental touch, and thus reduce the probability of accidents. The valve bonnet 2 can also serve as a reminder to remind the operator to strictly follow the regulations and improve the safety of the filling process; and it can also remind the operator to perform targeted operations on the stop valve 100 with the valve bonnet 2 of the embodiment of the utility model, so as to improve the filling efficiency. The stop valve 100 has multiple connectors. By setting the valve bonnet 2 of the embodiment of the utility model, it is also helpful for the operator to quickly find the filling connector 11 to improve the filling efficiency.

[0062] The protrusion 2b may be one or more, and the protrusion 2b protrudes from the cap body 2a. Optionally, the protrusion 2b is arranged on the axial side of the cap body 2a and protrudes from the surface of the cap body 2a. Alternatively, also optionally, the protrusion 2b is arranged on the circumferential side of the cap body 2a and protrudes from the surface of the cap body 2a. Alternatively, again optionally, the protrusion 2b is arranged on the axial side of the cap body 2a and on the circumferential side of the cap body 2a and protrudes from the surface of the cap body 2a.

[0063] The protrusion 2b at least partially protrudes from the cap body 2a, and the size of the cap body 2a is not sufficient to serve as a warning. In this case, the protrusion 2b is provided, and the size of the protrusion 2b alone is larger than the size of the cap body 2a, or the common size of the protrusion 2b and the cap body 2a is larger than the size of the cap body 2a. The protrusion 2b alone defines the warning area 4a, or the protrusion 2b and the cap body 2a jointly define the warning area 4a, thereby making the warning area 4a on the valve cap 2 more eye-catching, allowing observers to quickly obtain warning information, thereby enhancing the warning and reminder function of the valve cap 2, improving the safety of the use of the stop valve 100, and reducing the probability of accidents.

[0064] Optionally, the size of the protrusion 2b is relatively large, and the protrusion 2b alone can serve as a warning, and the warning area 4a can be defined by the protrusion 2b alone; or, optionally, the size of the protrusion 2b is relatively large, and the protrusion 2b alone can serve as a warning, and the warning area 4a can still be defined by the protrusion 2b and the cap body 2a together, making the warning area 4a more eye-catching; or, also optionally, the size of the protrusion 2b is insufficient, and the protrusion 2b and the cap body 2a jointly serve as a warning, and the protrusion 2b and the cap body 2a jointly define the warning area 4a.

[0065] In addition, in some countries and regions, there are clear regulatory requirements for the design and use of the filling connector 11 of the stop valve 100 of the air conditioner. For example, the certification standard issued by UL (Underwriters Laboratories) has safety requirements for the design of the filling connector of the stop valve for air conditioners using R454B refrigerant. The stop valve 100 of the embodiment of the utility model can meet the UL certification requirements by forming the warning area 4a on the valve cap 2 to improve the safety of the stop valve 100.

[0066] It is also worth mentioning that there are many types of new refrigerants, for example, R454C refrigerant, R1270 refrigerant, R600a refrigerant, etc. For air conditioners using the above-mentioned flammable refrigerants, the stop valve 100 of the embodiment of the utility model can be used to improve safety of use.

[0067] In some embodiments of the present invention, the length of the warning area 4a is greater than or equal to the specified warning size, and the warning area 4a is a specified warning color. The warning area 4a is more conspicuous, and the observer can quickly obtain the warning information, which can enhance the warning and reminder function of the warning area 4a, improve the safety of the stop valve 100, and reduce the probability of accidents.

[0068] In addition, in some countries and regions, there are clear regulatory requirements for the design and use of the filling connector of the air conditioner's shut-off valve. By limiting the length of the warning area 4a to be greater than or equal to the specified warning size and limiting the warning area 4a to a specified warning color, the design requirements can be met.

[0069] For example, the certification standard issued by UL (Underwriters Laboratories) requires that for air conditioners using R454B refrigerant, the filling joint of the stop valve be provided with a warning mark of a warning color, and the warning mark must meet a specified size. The valve cap 2 of the stop valve 100 of some embodiments of the utility model can meet UL certification by providing a warning area 4a, the length of the warning area 4a is greater than or equal to the specified size, and the warning area 4a is a specified warning color.

[0070] It is worth noting that the above-mentioned limited size is a type of prescribed warning size, but the limited size issued by UL certification cannot be used as the only prescribed warning size requirement. The length of the warning area 4a of the embodiment of the utility model can be selected according to actual needs, so as to meet different prescribed warning size requirements.

[0071] In some embodiments of the present invention, the warning size is specified to be 26 mm.

[0072] In some embodiments of the present invention, the length of the warning area 4a is greater than or equal to 26 mm. The warning area 4a is more conspicuous, and the observer can quickly obtain the warning information, which can enhance the warning and reminder function of the warning area 4a, improve the safety of the stop valve 100, and reduce the probability of accidents.

[0073] The certification standards issued by UL require that the filling joint of the stop valve be provided with a warning mark for air conditioners using R454B refrigerant, and the warning mark must be at least 1 inch (25.4 mm) long. The stop valve 100 of the embodiment of the utility model can meet the certification standards issued by UL by providing the warning area 4a on the valve cap 2.

[0074] In some embodiments of the present invention, the warning color is specified to be red.

[0075] In some embodiments, the warning area 4a is red, which makes the warning area 4a more conspicuous, thereby enhancing the warning and reminder function of the warning area 4a and improving the safety of the stop valve 100.

[0076] The certification standards issued by UL require that the filling joint of the stop valve be provided with a red warning mark for air conditioners using R454B refrigerant. In some embodiments of the utility model, the warning area 4a is red, which can meet the certification standards issued by UL.

[0077] In some embodiments of the present invention, the length direction of the warning area 4a is the axial direction or radial direction of the cap body 2a.

[0078] Optionally, the length direction of the warning area 4a is the axial direction of the cap body 2a. When the stop valve 100 is in operation, the axial direction of the cap body 2a is most easily observed by the user, so the user is more likely to observe the warning information, reduce the occurrence of accidental touch, and thus reduce the probability of accidents.

[0079] Optionally, the length direction of the warning area 4a is the radial direction of the cap body 2a. When refrigerant is filled through the filling port 111, the operation is performed along the axial direction of the cap body 2a. The operator can more easily observe the warning area 4a arranged along the radial direction of the cap body 2a. The operator can quickly obtain the warning information and reduce the probability of accidents.

[0080] In some embodiments of the present invention, the valve cap 2 is a red plastic part.

[0081] The valve bonnet 2 is entirely red, so the warning area 4a on the valve bonnet 2 is naturally red, and the valve bonnet 2 is more conspicuous, and a larger area can be provided for warning. The red warning information is not only easy to observe along the length direction of the warning area 4a, but also easy to observe in other directions of the warning area 4a, which can improve the safety of the stop valve 100. In addition, compared with adding a red coating on the valve bonnet, the valve bonnet 2 is a red plastic part that is not easy to fade, and can extend the service life.

[0082] In some embodiments of the present invention, Figure 6 As shown, the two axial ends of the cap body 2 a are an open end 27 and a closed end 28 , respectively, and the open end 27 defines a fitting hole 21 .

[0083] In some embodiments of the present invention, the cap body 2 a and the protruding portion 2 b are integrally formed, which can improve the integrity and sealing of the valve cap 2 and help improve the working reliability of the valve cap 2 .

[0084] In some embodiments of the present invention, the protrusion 2b includes: a first protrusion 23, such as Figure 6 and Figure 7 As shown, the valve cap 2 includes a cap body 2a and a first protrusion 23. The first protrusion 23 protrudes on the circumferential side of the cap body 2a. There are two first protrusions 23 and they are symmetrically arranged on both radial sides of the cap body 2a. The two first protrusions 23 and the cap body 2a jointly define a warning area 4a, and the radial direction where the two first protrusions 23 are located is the length direction of the warning area 4a.

[0085] If the radial dimension of the cap body 2a is not sufficient to serve as a warning, a first protrusion 23 is provided to extend radially along the cap body 2a, thereby increasing the radial dimension of the valve cap 2, making the warning area 4a more eye-catching and improving the safety of the stop valve 100.

[0086] In some embodiments of the present invention, Figure 7As shown, the surface of the first protrusion 23 has a concavo-convex structure. The first protrusion 23 not only serves as a warning, but also serves as a handle protruding from the peripheral wall surface of the cap body 2a. The first protrusion 23 is driven to connect or separate the valve cap 2 and the filling connector 11. The first protrusion 23 is provided to facilitate the disassembly and assembly of the valve cap 2, thereby improving the operation efficiency. By providing a concavo-convex structure on the surface of the first protrusion 23, the surface friction of the first protrusion 23 can be improved. The concavo-convex structure plays an anti-slip role, which can further improve the operation efficiency of connecting or separating the valve cap 2 and the filling connector 11 using the first protrusion 23.

[0087] In some embodiments of the present invention, the protrusion 2b includes: a second protrusion 24, such as Figure 8 and Fig. 9 As shown, the valve cap 2 includes a cap body 2a and a second protrusion 24, the second protrusion 24 protrudes on the axial side of the open end 27 of the cap body 2a, and is constructed as an annular structure arranged around the filling connector 11, the second protrusion 24 alone defines the warning area 4a, the cross-section of the second protrusion 24 is a circular ring, and the diameter of the maximum cross-section of the second protrusion 24 is the length of the warning area 4a.

[0088] If the radial dimension of the cap body 2a is not sufficient to serve as a warning, a second protrusion 24 is provided to extend radially along the cap body 2a, thereby increasing the radial dimension of the valve cap 2, making the warning area 4a more eye-catching and improving the safety of the stop valve 100.

[0089] It can be understood that the open end 27 of the cap body 2a forms a matching hole 21 to cooperate with the filling connector 11. The open end 27 of the cap body 2a is arranged close to the valve body 1. The axial space of the open end 27 of the cap body 2a is small. Therefore, the second protrusion 24 is constructed as an annular structure arranged around the filling connector 11. The second protrusion 24 mainly protrudes radially from the cap body 2a to avoid interference with the cooperation between the cap body 2a and the filling connector 11, thereby improving the working reliability of the valve cap 2.

[0090] In some embodiments of the present invention, Fig. 9 As shown, the second protrusion 24 is connected to the open end 27 of the cap body 2a through the circular ring stage 26, and the outer diameter of the circular ring stage 26 is less than or equal to the diameter of the end of the second protrusion 24 close to the cap body 2a. The diameter of the end of the second protrusion 24 away from the cap body 2a is greater than the diameter of the end of the second protrusion 24 close to the cap body 2a, and the diameter of the end of the second protrusion 24 away from the cap body 2a is the length of the warning area 4a.

[0091] Compared with setting the second protrusion as a ring structure with uniform thickness, the cross section of the second protrusion 24 of the embodiment of the utility model gradually increases along the direction from the filling end to the valve body 1, which is conducive to saving the manufacturing cost of the valve cap 2. In addition, the diameter of the second protrusion 24 at one end close to the cap body 2a is the smallest, and it is connected to the open end 27 of the cap body 2a through the circular ring stage 26, which reduces the space occupied by the second protrusion 24 on the open end 27 of the cap body 2a, so as to avoid interference when driving the cap body 2a to connect or separate with the filling connector 11. For example, when the cap body 2a is connected or separated with the filling connector 11 by rotating the spanner, the space available for the spanner to operate is increased, which is convenient for the use of the spanner and improves the efficiency of disassembly and assembly.

[0092] In some embodiments of the present invention, the protrusion 2b includes: a third protrusion 25, such as Figure 1 ,like Fig.10 and Fig.11 As shown, the valve cap 2 includes a cap body 2a and a third protrusion 25, the third protrusion 25 protrudes on the axial side of the closed end 28, the third protrusion 25 and the cap body 2a together define a warning area 4a, and the axial direction of the cap body 2a is the length direction of the warning area 4a.

[0093] If the axial dimension of the cap body 2a is not sufficient to serve as a warning, a third protrusion 25 is provided to protrude on the axial side of the cap body 2a. By providing the third protrusion 25, the axial dimension of the valve cap 2 is increased, making the warning area 4a more eye-catching, thereby improving the safety of the stop valve 100.

[0094] It can be understood that the open end 27 of the cap body 2a forms a matching hole 21 that cooperates with the filling connector 11. The open end 27 of the cap body 2a is arranged close to the valve body 1. The axial space of the open end 27 of the cap body 2a is small. Therefore, the third protrusion 25 is connected to the closed end 28 of the cap body 2a. The cap body 2a and the filling connector 11 cooperate with each other to avoid interference with the operation of the cap body 2a and improve the working reliability of the valve cap 2.

[0095] In some embodiments, Fig.10 As shown, the third protrusion 25 is connected to the axial side of the closed end 28 of the cap body 2a, and the third protrusion 25 extends along the axial direction of the cap body 2a, which is conducive to reducing the radial space occupied by the cap body 2a. It is worth noting that the axial extension of the third protrusion 25 along the valve cap 2 should be understood in a broad sense, and the overall length direction of the third protrusion 25 is consistent with the axial direction of the cap body 2a. The third protrusion 25 can be Fig.10 The linear structure of the example shown can also be Fig.11 The curved structures with arcs in the examples shown all fall within the protection scope of the present utility model.

[0096] In some embodiments of the present invention, Fig.10 As shown, the third protrusion 25 is formed into a hollow cylindrical shape extending along the axial direction of the cap body 2a, and the cross section of the outer peripheral surface of the third protrusion 25 is larger than the cross section of the inner cavity of the cap body 2a.

[0097] The third protrusion 25 extends axially along the cap body 2a, which can increase the axial dimension of the valve cap 2. The third protrusion 25 is hollow cylindrical, which is beneficial to saving manufacturing materials of the valve cap 2, reducing manufacturing costs, and helping to reduce the weight of the valve cap 2.

[0098] In some embodiments of the present invention, Fig.11 As shown, the third protrusion 25 is formed into a solid curved column extending along a broken line or a curve, and the cross section of the outer peripheral surface of the third protrusion 25 is smaller than the inner cavity cross section of the cap body 2a. The third protrusion 25 is a solid column with a smaller outer diameter, which is beneficial to saving the manufacturing materials of the valve cap 2, reducing the manufacturing cost, and helping to reduce the weight of the valve cap 2.

[0099] The air conditioner according to the second embodiment of the utility model includes the stop valve 100 of the first embodiment of the utility model. By setting the stop valve 100 of the first aspect of the utility model, the sealing of the refrigerant inside the air conditioner can be improved, the use safety of the air conditioner can be improved, and it can also play a warning role, which can reduce the occurrence of accidental touches and remind operators to operate strictly in accordance with regulations, thereby reducing the probability of accidents and further improving the use safety of the air conditioner.

[0100] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0101] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0102] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0103] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0104] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0105] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A stop valve, It is characterized in that include: A valve body, the valve body comprising a filling joint, the outer end surface of the filling joint having a filling port; A valve bonnet, comprising a bonnet body, wherein the bonnet body defines a mating hole with an open side, wherein the filling connector extends into the mating hole and is connected to the mating hole via a detachable structure, wherein the mating hole and the filling connector cooperate to form a line contact sealing structure, wherein the sealing structure is located on a side of the detachable structure close to the filling port and is arranged around the filling port.

2. The stop valve according to claim 1, It is characterized in that The filling joint includes a sealing section, the axial end face of the sealing section serves as the outer end face to be provided with the filling port, the outer peripheral surface of the sealing section is formed as an inclined annular surface inclined to the axial direction, the matching hole is a stepped hole to form a step surface between two adjacent hole sections, and the edge of the step surface is in line contact with the inclined annular surface to form the sealing structure.

3. The stop valve according to claim 2, It is characterized in that It also includes a sealing ring, which is arranged in the matching hole and sealingly fitted between the hole wall of the matching hole and the inclined annular surface. The sealing ring is arranged close to the filling port relative to the sealing structure and is arranged around the filling port.

4. The stop valve according to claim 2, It is characterized in that The filling connector also includes a connecting section, which is located on a side of the sealing section away from the filling port and is threadedly connected to the matching hole to form the detachable structure.

5. The stop valve according to any one of claims 1 to 4, It is characterized in that The valve cap further comprises a protrusion, which protrudes from the axial side and / or the circumferential side of the cap body. The protrusion alone or together with the cap body defines a warning area.

6. The stop valve according to claim 5, It is characterized in that The valve bonnet satisfies at least one of conditions one, two and three. Condition one is that the length of the warning area is greater than or equal to the specified warning size, and the length direction of the warning area is the axial or radial direction of the bonnet body; condition two is that the valve bonnet is a plastic part; condition three is that the warning area is a specified warning color.

7. The stop valve according to claim 5, It is characterized in that The protrusion comprises: A first protrusion, wherein the first protrusion protrudes from the circumferential side of the cap body, there are two first protrusions and they are symmetrically arranged on both radial sides of the cap body, the two first protrusions and the cap body together define the warning area, and the radial direction where the two first protrusions are located is the length direction of the warning area.

8. The stop valve according to claim 5, It is characterized in that The protrusion comprises: A second protrusion protrudes from the axial side of the open end of the cap body and is constructed as an annular structure arranged around the filling connector. The second protrusion alone defines a warning area. The cross-section of the second protrusion is a circular ring, and the diameter of the maximum cross-section of the second protrusion is the length of the warning area.

9. The stop valve according to claim 5, It is characterized in that The protrusion comprises: A third protrusion protrudes from the axial side of the closed end of the cap body, and the third protrusion and the cap body together define the warning area, and the axial direction of the cap body is the length direction of the warning area.

10. The stop valve according to claim 9, It is characterized in that The third protrusion is formed into a hollow cylindrical shape, and the cross-section of the outer peripheral surface of the third protrusion is larger than the cross-section of the matching hole; or, the third protrusion is formed into a solid columnar shape, and the cross-section of the outer peripheral surface of the third protrusion is smaller than the cross-section of the matching hole.

11. An air conditioner, It is characterized in that The invention comprises a stop valve according to any one of claims 1 to 10.

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