Pipe connector and air conditioner

Abstract

The present invention provides a pipe connector and an air conditioner, and relates to the technical field of air conditioners. The pipe connector is used to connect to a stop valve. The pipe connector includes a nozzle and a sealing cap. A through hole coaxially arranged with the nozzle is provided inside the nozzle. The sealing cap includes a sealing head. A positioning groove is provided on one of the inner peripheral wall of the through hole and the outer peripheral wall of the sealing head, and a positioning column matched with the positioning groove is convexly provided on the other. The sealing head is inserted into the through hole, and the positioning column cooperates with the positioning groove. The nozzle is used to be sleeved on the end of the stop valve and press the sealing head on the end face of the stop valve. The present invention also provides an air conditioner, which adopts the above-mentioned pipe connector. The pipe connector and air conditioner provided by the present invention can improve the connection stability between the nozzle and the sealing cap.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to a pipe connector and an air conditioner. Background Art

[0002] R32 environmentally friendly refrigerant is flammable under certain conditions. To ensure user safety, users must be prevented from disassembling the connecting pipes of the internal and external units without permission during installation. The existing copper nuts are nut-shaped and can be disassembled by users with ordinary wrenches. They cannot be disassembled, and the spherical copper sealing cap structure inside is difficult to assemble. The existing copper sealing cap is first put into the copper nut and then the copper nut is screwed on the stop valve. However, after the copper sealing cap is put into the copper nut and the copper nut is screwed on the stop valve, the copper sealing cap is particularly easy to fall off, which hinders the thread matching during the screwing process of the copper nut and makes the assembly difficult, especially the smaller copper nuts and spherical copper sealing caps, which are more likely to fall off. Summary of the invention

[0003] The problem solved by the invention is how to improve the connection stability between the nut and the sealing cap.

[0004] In order to solve the above problems, the present invention provides a pipe connector for connecting to a stop valve, wherein the pipe connector comprises a nozzle and a sealing cap.

[0005] A through hole coaxially arranged with the nano is provided inside the nano.

[0006] The sealing cap includes a sealing head.

[0007] A positioning groove is provided on one of the inner peripheral wall of the through hole and the outer peripheral wall of the sealing head, and a positioning column matched with the positioning groove is convexly provided on the other one.

[0008] The sealing head penetrates into the through hole, and the positioning column matches with the positioning groove.

[0009] The nozzle is used for sleeve-mounting on the end of the stop valve and pressing the sealing head on the end surface of the stop valve.

[0010] The pipe connector provided by the present invention can realize the mutual positioning between the nut and the sealing head through the mutual cooperation between the positioning column and the positioning groove arranged between the nut and the sealing head, so that when the nut is sleeved on the end of the stop valve and the sealing head is pressed on the end surface of the stop valve, the positioning column and the positioning groove can provide a stable positioning effect to the nut and the sealing head, ensure the position stability between the nut and the sealing head, so as to achieve the purpose of improving the connection stability between the nut and the sealing cap, and can further prevent the sealing cap from falling off. In addition, the pipe connector has a simple structure, is easy to manufacture, and has low cost.

[0011] Optionally, the positioning groove is opened on the inner wall of the through hole, and the positioning groove includes a sliding section and a clamping section which are connected to each other, the extension direction of the sliding section is the same as the extension direction of the axis of the through hole, and the clamping section is arranged at an angle with the sliding section.

[0012] Among them, the positioning groove is arranged on the inner peripheral wall of the through hole, and the through hole is divided into a sliding section and a clamping section, so that when the positioning column cooperates with the positioning groove, the positioning column can slide from the sliding section into the positioning groove, and the positioning column can move to the inside of the clamping section to realize the cooperation between the positioning column and the positioning groove, and at the same time provide a positioning effect for the nut and the sealing head. Since an angle is formed between the clamping section and the sliding section, the positioning column can be prevented from escaping from the clamping section, the cooperation stability between the positioning column and the positioning groove can be guaranteed, and the connection stability between the nut and the sealing cap can be improved.

[0013] Optionally, the through hole has an open end for inserting the stop valve, and the holding section is located at an end of the sliding section away from the open end.

[0014] Optionally, the sliding section is perpendicular to the holding section.

[0015] Among them, arranging the sliding section and the holding section to be perpendicular to each other can reduce the possibility of the positioning column sliding out of the holding section, and can further improve the matching stability between the positioning column and the positioning groove.

[0016] Optionally, the number of the positioning grooves is greater than the number of the positioning columns.

[0017] Setting the number of positioning grooves to be greater than the number of positioning columns allows the sealing head to penetrate into the through hole in a variety of postures, thereby improving the convenience of the sealing head penetrating into the through hole of the hopper, thereby improving the assembly efficiency between the hopper and the sealing cap.

[0018] Optionally, the sealing head comprises a sealing body and a sealing portion, the sealing portion is arranged at one end of the sealing body, and the diameter of the sealing portion is larger than the diameter of the sealing body, and the nut can press the sealing portion against the end surface.

[0019] The positioning column is convexly arranged on the outer side of the sealing body.

[0020] When assembling the sealing head and the nozzle, first insert the sealing body into the through hole, and the sealing part follows the sealing body into the through hole, and the mutual positioning between the sealing head and the nozzle is achieved through the mutual cooperation between the positioning column and the positioning groove, and then the nozzle is sleeved on the end of the stop valve, and the nozzle can be pressed on the sealing part to achieve the connection between the pipe connector and the stop valve. Among them, the mutual cooperation between the positioning column and the positioning groove can improve the assembly stability of the sealing head, thereby ensuring that the sealing head can provide an efficient sealing function.

[0021] Optionally, the sealing portion is annular, and the outer side of the sealing portion is inclined toward a side away from the sealing body, so that the outer side of the sealing portion forms a conical surface, and the nut can be pressed on the conical surface to press the sealing portion against the end surface.

[0022] By setting the conical surface, the shear force provided to the sealing part by the nozzle when the nozzle is pressed on the sealing part can be reduced, so as to achieve the purpose of improving the strength of the sealing part and improve the strength and stability of the sealing cap.

[0023] Optionally, a conical groove is provided on a side of the sealing portion away from the sealing body, so that the sealing portion is in a flared shape.

[0024] Setting the sealing part in a flared shape can facilitate the matching of the sealing part with the end of the stop valve, and can accommodate dust and other particles on the end face of the stop valve in the conical groove, thereby improving the sealing performance provided by the sealing part to the end of the stop valve.

[0025] Optionally, a positioning hole coaxially arranged with the end of the stop valve is opened on the end surface.

[0026] The sealing cap further comprises a support column, which is coaxially arranged with the sealing head and is arranged at one end of the sealing head. The support column is used to extend into the positioning hole and cooperate with the positioning hole.

[0027] Through the mutual cooperation between the support column and the positioning hole, a certain positioning effect can be provided for the installation of the sealing head, the assembly efficiency between the sealing cap and the stop valve can be improved, the assembly accuracy of the sealing cap can be improved, and the overall assembly efficiency and assembly accuracy of the pipe connector can be improved.

[0028] Optionally, the valve comprises a coaxially arranged sleeve body and a holding body, a sleeve hole for being sleeved on the stop valve is opened in the middle of the sleeve body, a receiving hole coaxially arranged with the sleeve hole is opened in the middle of the holding body, the sleeve hole and the receiving hole are connected to form the through hole, and the inner diameter of the sleeve hole is larger than the inner diameter of the receiving hole.

[0029] The positioning groove is formed on the inner peripheral wall of the accommodating hole.

[0030] The sleeve body is used for sleeve-mounting on the end of the stop valve, and the pressing body is used for pressing the sealing head on the end surface.

[0031] When assembling the nut and the sealing cap, the sealing head is inserted into the accommodating hole, part of the sealing head is accommodated in the sleeve hole, and the sleeve hole is sleeved on the end of the stop valve. At this time, since the inner diameter of the accommodating hole is smaller than the inner diameter of the sleeve hole, the holding body presses part of the sealing head on the end face of the stop valve, thereby achieving the purpose of the sealing head providing a sealing function. In addition, by opening a positioning groove on the inner peripheral wall of the accommodating hole, the mutual cooperation between the positioning column and the positioning groove is facilitated, thereby improving the assembly efficiency between the nut and the sealing cap.

[0032] Optionally, the outer periphery of the hopper is cylindrical.

[0033] By setting the outer periphery of the nut to be cylindrical, the nut is not suitable for household tools such as wrenches, which can prevent users from disassembling the nut at will, thereby preventing the nut from being disassembled at will.

[0034] Optionally, a plurality of slots are provided on the outer periphery of the hopper, and the plurality of slots are arranged at equal intervals along the circumferential direction of the hopper.

[0035] By arranging a plurality of slots on the outer peripheral wall of the nut, it is convenient for maintenance workers to disassemble and maintain the nut.

[0036] An air conditioner comprises a pipe connector, which is used to be connected to a stop valve and comprises a nozzle and a sealing cap.

[0037] A through hole coaxially arranged with the nano is provided inside the nano.

[0038] The sealing cap includes a sealing head.

[0039] A positioning groove is provided on one of the inner peripheral wall of the through hole and the outer peripheral wall of the sealing head, and a positioning column matched with the positioning groove is convexly provided on the other one.

[0040] The sealing head penetrates into the through hole, and the positioning column matches with the positioning groove.

[0041] The nozzle is used for sleeve-mounting on the end of the stop valve and pressing the sealing head on the end surface of the stop valve.

[0042] The beneficial effects of the air conditioner provided by the present invention relative to the prior art are the same as the beneficial effects of the pipe connector provided above relative to the prior art, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 This is a schematic diagram of the structure of the pipe connector provided in an embodiment of the present invention connected to a stop valve;

[0044] Figure 2It is a schematic cross-sectional structural diagram of a pipe connector provided in an embodiment of the present invention connected to a stop valve;

[0045] Figure 3 It is a schematic cross-sectional structure diagram of a nanoparticle provided in an embodiment of the present invention;

[0046] Figure 4 for Figure 3 A schematic diagram of the partially enlarged structure at A in the middle;

[0047] Figure 5 A schematic structural diagram of a sealing cap provided in an embodiment of the present invention from a first viewing angle;

[0048] Figure 6 A schematic structural diagram of a sealing cap provided in an embodiment of the present invention from a second viewing angle;

[0049] Figure 7 It is a schematic cross-sectional structural diagram of a sealing cap provided in an embodiment of the present invention;

[0050] Figure 8 A schematic diagram of the structure of a nanometer from a first perspective provided in an embodiment of the present invention;

[0051] Fig. 9 A schematic diagram of the structure of a nanometer from a second viewing angle provided in an embodiment of the present invention;

[0052] Fig.10 A schematic diagram of the structure of a nanometer from a third perspective provided in an embodiment of the present invention;

[0053] Fig.11 It is a schematic diagram of the partial structure of the disassembly tool provided in the embodiment of the present invention.

[0054] Description of reference numerals:

[0055] 1- pipe connector; 2- stop valve; 3- positioning hole; 10- needle; 11- through hole; 12- slot; 110- sleeve body; 111- sleeve hole; 120- holding body; 121- accommodating hole; 122- positioning slot; 1221- sliding section; 1222- holding section; 20- sealing cap; 21- positioning column; 210- sealing head; 211- sealing body; 212- sealing part; 2121- conical groove; 230- supporting column; 30- disassembly tool; 310- assembly hole; 311- block. DETAILED DESCRIPTION

[0056] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0057] See also Figure 1In this embodiment, an air conditioner (not shown) is provided, which has a stop valve 2 and a pipe connector 1 connected to the end of the stop valve 2, wherein the pipe connector 1 can seal the end face of the stop valve 2. It should be noted that the pipe connector 1 includes a nipple 10 and a sealing cap 20, wherein the nipple 10 can be used to be sleeved on the end of the stop valve 2, and at the same time, the sealing cap 20 is pressed on the end face of the stop valve 2, so as to provide a stable sealing effect to the end face of the stop valve 2 through the sealing cap 20. In this embodiment, the connection stability between the nipple 10 and the sealing cap 20 can be improved, and the falling off of the sealing cap 20 can be avoided.

[0058] It should be noted that, in the present embodiment, the nut 10 is a copper nut 10, and the sealing cap 20 is made of a plastic material, so that the nut 10 and the sealing cap 20 are both relatively easy to manufacture components, which can reduce production costs and improve production efficiency. It should be understood that in other embodiments, the nut 10 and the sealing cap 20 can be made of other materials, for example, the nut 10 is made of steel or aluminum alloy, and the sealing cap 20 can also be made of metal.

[0059] For further information, please refer to Figure 2 , Figure 3 and Figure 5 , a through hole 11 coaxially arranged with the hopper 10 is provided inside the hopper 10. The through hole 11 is matched with the end of the stop valve 2, so that the hopper 10 can be sleeved on the stop valve 2 through the through hole 11. In addition, a thread is provided on the inner circumferential wall of the through hole 11, and the end of the stop valve 2 is also provided with a matching external thread, so that the hopper 10 can be sleeved on the end of the stop valve 2 by threaded matching. In addition, the sealing cap 20 includes a sealing head 210. A positioning groove 122 is provided on one of the inner circumferential wall of the through hole 11 and the outer circumferential wall of the sealing head 210, and a positioning column 21 matched with the positioning groove 122 is convexly provided on the other. The above-mentioned setting method can be that a positioning column 21 is protruding on the inner circumferential wall of the through hole 11, and correspondingly, a positioning groove 122 adapted to the positioning column 21 is opened on the outer circumferential wall of the sealing head 210; or, a positioning groove 122 is opened on the inner circumferential wall of the through hole 11, and correspondingly, a positioning column 21 adapted to the positioning groove 122 is arranged on the outer circumferential wall of the sealing head 210.

[0060] In this embodiment, when the nut 10 and the sealing cap 20 are assembled on the stop valve 2, the sealing head 210 penetrates the through hole 11, and the positioning column 21 is matched with the positioning groove 122. The nut 10 with the sealing head 210 is sleeved on the end of the stop valve 2. When the nut 10 is screwed into the end of the stop valve 2 to a certain length, the nut 10 presses the sealing head 210 on the end face of the stop valve 2, and the sealing head 210 can provide a stable sealing effect to the end face of the stop valve 2. In addition, during assembly, the mutual cooperation between the positioning column 21 and the positioning groove 122 can make the connection between the nut 10 and the sealing cap 20 more stable, and can ensure the installation accuracy of the sealing cap 20, and can also prevent the sealing cap 20 from being separated from the nut 10.

[0061] Optionally, see Figure 3 and Figure 4 In this embodiment, the positioning groove 122 is formed on the inner peripheral wall of the through hole 11, and correspondingly, the positioning column 21 is disposed on the outer peripheral wall of the sealing head 210. Further, the positioning groove 122 includes a slide-in section 1221 and a clamping section 1222 that are interconnected, the extension direction of the slide-in section 1221 is the same as the extension direction of the axis of the through hole 11, and the clamping section 1222 is disposed at an angle to the slide-in section 1221. Among them, the positioning groove 122 is arranged on the inner wall of the through hole 11, and the through hole 11 is divided into a sliding section 1221 and a holding section 1222, so that when the positioning column 21 cooperates with the positioning groove 122, the positioning column 21 can slide from the sliding section 1221 into the positioning groove 122, and the positioning column 21 can move to the inside of the holding section 1222 to realize the cooperation between the positioning column 21 and the positioning groove 122, and at the same time provide a positioning effect for the hopper 10 and the sealing head 210. Since an angle is formed between the holding section 1222 and the sliding section 1221, the positioning column 21 can be prevented from escaping from the holding section 1222, and the cooperation stability between the positioning column 21 and the positioning groove 122 can be ensured, thereby improving the connection stability between the hopper 10 and the sealing cap 20.

[0062] Optionally, the through hole 11 has an open end for inserting the stop valve 2, that is, when the hopper 10 is sleeved on the end of the stop valve 2, the end of the stop valve 2 extends from the open end into the interior of the through hole 11 to achieve the connection between the hopper 10 and the end of the stop valve 2. The holding section 1222 is located at the end of the slide-in section 1221 away from the open end, wherein one end of the holding section 1222 is connected to the end of the slide-in section 1221, thereby making the positioning groove 122 L-shaped. Moreover, in this embodiment, the slide-in section 1221 is perpendicular to the holding section 1222. Among them, setting the slide-in section 1221 and the holding section 1222 to be perpendicular to each other can reduce the possibility of the positioning column 21 sliding out of the holding section 1222, and can further improve the matching stability between the positioning column 21 and the positioning groove 122. When the positioning column 21 slides into the holding section 1222 through the sliding section 1221, the two side walls of the holding section 1222 limit the positioning column 21, thereby preventing the sealing head 210 from moving in a direction perpendicular to the holding section 1222, wherein the direction perpendicular to the holding section 1222 is the extension direction of the sliding section 1221, thereby preventing the sealing head 210 from moving along the axis of the through hole 11, thereby limiting the relative movement of the sealing head 210 with the nut 10 along the axis of the nut 10, thereby improving the connection stability between the nut 10 and the sealing head 210. It should be understood that in other embodiments, the angle between the sliding section 1221 and the holding section 1222 can also be set to other values, such as 80 degrees or 100 degrees.

[0063] Optionally, the number of the positioning grooves 122 is greater than the number of the positioning posts 21. Setting the number of the positioning grooves 122 to be greater than the number of the positioning posts 21 can enable the sealing head 210 to penetrate into the through hole 11 in a variety of postures, thereby improving the convenience of the sealing head 210 penetrating into the through hole 11 of the nut 10, thereby improving the assembly efficiency between the nut 10 and the cap 20. It should be noted that in the present embodiment, the number of the positioning grooves 122 is four, and the four positioning grooves 122 are arranged on the inner peripheral wall of the through hole 11 at equal intervals, and the number of the positioning posts 21 is two, and the two positioning rods are respectively arranged on opposite sides of the radial direction of the sealing head 210. It should be understood that in other embodiments, the number of the positioning grooves 122 and the positioning posts 21 can also be set in other ways, for example, the number of the positioning grooves 122 is an integer multiple of the number of the positioning posts 21, etc. Of course, the number of the positioning grooves 122 can also only meet the requirement of being greater than the number of the positioning posts 21, and it is only necessary to meet the requirement that the multiple positioning posts 21 can be respectively inserted into the multiple positioning grooves 122. In addition, in other embodiments, the number of the positioning grooves 122 may be the same as the number of the positioning posts 21 .

[0064] For further information, please refer to Figure 2 , Figure 5 , Figure 6 and Figure 7The sealing head 210 includes a sealing body 211 and a sealing portion 212. The sealing portion 212 is disposed at one end of the sealing body 211, and the diameter of the sealing portion 212 is larger than the diameter of the sealing body 211. The nut 10 can press the sealing portion 212 against the end surface. The positioning column 21 is convexly disposed on the outer side of the sealing body 211. In this embodiment, the sealing body 211 is roughly cylindrical, and the end of the sealing body 211 away from the sealing portion 212 is set to a round head shape. When assembling the sealing head 210 and the nozzle 10, the sealing body 211 is first inserted into the through hole 11, and the sealing portion 212 follows the sealing body 211 to enter the through hole 11, and the mutual positioning between the sealing head 210 and the nozzle 10 is achieved through the mutual cooperation between the positioning column 21 and the positioning groove 122. Then, the nozzle 10 is sleeved on the end of the stop valve 2, and the nozzle 10 can be pressed on the sealing portion 212 to achieve the connection between the pipe connector 1 and the stop valve 2. In this way, the mutual cooperation between the positioning column 21 and the positioning groove 122 can improve the assembly stability of the sealing head 210, thereby ensuring that the sealing head 210 can provide an efficient sealing function.

[0065] Optionally, the sealing portion 212 is annular, and the outer side of the sealing portion 212 is inclined toward the side away from the sealing body 211, so that the outer side of the sealing portion 212 forms a conical surface, and the nut 10 can be pressed on the conical surface to press the sealing portion 212 on the end surface. Through the setting of the conical surface, the shear force provided to the sealing portion 212 by the nut 10 when pressing the sealing portion 212 can be reduced, so as to achieve the purpose of improving the strength of the sealing portion 212, so as to improve the strength and stability of the sealing cap 20.

[0066] In addition, a conical groove 2121 is provided on the side of the sealing part 212 away from the sealing body 211, and the sealing part 212 is expanded. The sealing part 212 is set to be expanded, which can facilitate the sealing part 212 to match with the end of the stop valve 2, and the conical groove 2121 can accommodate dust and other particles on the end surface of the stop valve 2, thereby improving the sealing performance provided by the sealing part 212 to the end of the stop valve 2. In addition, since the sealing cap 20 is made of plastic material, the side of the sealing part 212 close to the sealing body 211 is set as a conical surface, and the side of the sealing part 212 away from the sealing body 211 is set as a conical surface, which can make the sealing part 212 as a whole have a certain elasticity, can further improve the strength of the sealing part 212, and can improve the sealing performance provided by the sealing part 212.

[0067] In this embodiment, a positioning hole 3 is provided on the end face and is coaxially arranged with the end of the stop valve 2. Furthermore, the sealing cap 20 also includes a support column 230, which is coaxially arranged with the sealing head 210, and the support column 230 is arranged at one end of the sealing head 210, and the support column 230 is used to extend into the positioning hole 3 and cooperate with the positioning hole 3. Among them, in this embodiment, the end of the support column 230 is connected to the middle of the sealing part 212. Through the mutual cooperation between the support column 230 and the positioning hole 3, a certain positioning effect can be provided for the installation of the sealing head 210, the assembly efficiency between the sealing cap 20 and the stop valve 2 can be improved, and the assembly accuracy of the sealing cap 20 can be improved, and the overall assembly efficiency and assembly accuracy of the pipe connector 1 can be improved.

[0068] Please refer to Figure 2 , Figure 8 , Fig. 9 and Fig.10 The nut 10 includes a coaxially arranged sleeve body 110 and a holding body 120. A sleeve hole 111 for sleeve-mounting the stop valve 2 is provided in the middle of the sleeve body 110. A receiving hole 121 coaxially arranged with the sleeve hole 111 is provided in the middle of the holding body 120. The sleeve hole 111 and the receiving hole 121 are connected to form a through hole 11. The inner diameter of the sleeve hole 111 is larger than the inner diameter of the receiving hole 121. The positioning groove 122 is provided on the inner peripheral wall of the receiving hole 121. The sleeve body 110 is used to be sleeved on the end of the stop valve 2, and the holding body 120 is used to hold the sealing head 210 on the end face. When assembling the nut 10 and the sealing cap 20, the sealing head 210 is inserted into the accommodating hole 121, and part of the sealing head 210 is accommodated in the sleeve hole 111, and the sleeve hole 111 is sleeved on the end of the stop valve 2. At this time, since the inner diameter of the accommodating hole 121 is smaller than the inner diameter of the sleeve hole 111, the holding body 120 presses part of the sealing head 210 on the end face of the stop valve 2, thereby achieving the purpose of the sealing head 210 providing a sealing function. In addition, by opening the positioning groove 122 on the inner circumferential wall of the accommodating hole 121, the mutual cooperation between the positioning column 21 and the positioning groove 122 is facilitated, thereby improving the assembly efficiency between the nut 10 and the sealing cap 20.

[0069] It should be noted that, in the present embodiment, the diameter of the sealing portion 212 is adapted to the diameter of the sleeve hole 111, and the diameter of the sealing body 211 is adapted to the diameter of the accommodating hole 121, so that when the sealing head 210 is inserted into the through hole 11, the sealing body 211 is inserted into the interior of the accommodating hole 121, and the outer side surface of the sealing body 211 is in contact with the inner circumferential wall of the accommodating hole 121; in addition, the sealing portion 212 enters into the sleeve hole 111, and the sealing portion 212 can be supported on the end face of the holding body 120 close to the sleeve body 110, so that when the sleeve body 110 is sleeved on the end of the stop valve 2, the holding body 120 can press the sealing portion 212 on the end face of the stop valve 2.

[0070] Optionally, in this embodiment, the end surface of the pressing body 120 close to the sleeve body 110 is set to a conical surface that matches the conical surface of the sealing portion 212, thereby increasing the contact area between the pressing body 120 and the sealing portion 212, avoiding damage to the sealing portion 212 by the pressing body 120, and also improving the abutment stability between the pressing body 120 and the sealing portion 212. In addition, the outer peripheral wall of the pressing body 120 is also set to a cone, and the cross-sectional area of ​​the pressing body 120 gradually decreases from one end close to the sleeve body 110 to the end away from the sleeve body 110.

[0071] In addition, in this embodiment, the outer periphery of the nut 10 is cylindrical. In this embodiment, the outer peripheral wall of the sleeve body 110 is cylindrical, and the outer peripheral wall of the holding body 120 is truncated cone. Through the above-mentioned setting method, the nut 10 is not suitable for tools such as household wrenches, which can prevent users from disassembling the nut 10 at will, thereby preventing the nut 10 from being disassembled at will.

[0072] Furthermore, a plurality of slots 12 are provided on the outer periphery of the nut 10, and the plurality of slots 12 are arranged at equal intervals along the circumference of the nut 10. Fig.11 In this embodiment, a disassembly tool 30 adapted to the nut 10 is also provided. The disassembly tool 30 has a hexagonal shape, and an assembly hole 310 is provided inside the disassembly tool 30. The assembly hole 310 is adapted to the nut 10, that is, the inner diameter of the assembly hole 310 is adapted to the diameter of the sleeve body 110. In addition, a plurality of blocks 311 are convexly provided on the inner peripheral wall of the assembly hole 310. The plurality of blocks 311 are used to be inserted into a plurality of slots 12. When the blocks 311 are inserted into the slots 12, the nut 10 can be rotated by rotating the disassembly tool 30 to complete the disassembly and assembly of the nut 10. In this embodiment, the number of blocks 311 is less than or equal to the number of slots 12. In this embodiment, the number of blocks 311 and slots 12 is set in such a way that there are three blocks 311 and nine slots 12, and the three blocks 311 are arranged at equal intervals on the inner peripheral wall of the assembly hole 310. It should be understood that the number and distribution of the card blocks 311 may also be in other ways, as long as the plurality of card blocks 311 can be respectively inserted into the corresponding number of card slots 12 .

[0073] Optionally, in the present embodiment, the diameter of the positioning post 21 is set to a, and the overall width of the positioning slot 122 should be 2 to 3 times of a, wherein in the present embodiment, the overall width of the positioning slot 122 refers to the length of the clamping section 1222. In other embodiments, when the clamping section 1222 is not perpendicular to the sliding section 1221, the overall width of the positioning slot 122 refers to the span of the positioning slot 122 in the direction perpendicular to the sliding section 1221. In the present embodiment, the value of a is 1.8 mm, and the corresponding overall width of the positioning slot 122 is 4.5 mm. In addition, the overall length of the positioning slot 122 is b, and the value of b should be greater than 5 mm and less than 8 mm, wherein in the present embodiment, b is equal to 6 mm. In addition, the length of the positioning post 21 is set to 2 mm to adapt to the positioning slot 122 and facilitate cooperation with the positioning slot 122. It should be noted that the overall length of the positioning groove 122 refers to the span of the positioning groove 122 in the direction of the sliding section 1221, that is, in this embodiment, it is the length of the sliding section 1221 plus the width of the clamping section 1222. In addition, the width of the sliding section 1221 is c, and the value of c is greater than 1mm and less than 2.5mm. In this embodiment, c is equal to 2mm. That is, in this embodiment, the clearance fit between the positioning column 21 and the positioning groove 122 can facilitate the sliding of the positioning column 21 in the positioning groove 122, and facilitate the mutual cooperation between the positioning column 21 and the positioning groove 122. In addition, in this embodiment, the diameter of the sealing body 211 is within 0.5mm smaller than the diameter of the hopper 10, that is, the difference between the diameter of the sealing body 211 and the diameter of the hopper 10 is less than or equal to 0.5mm, so that the effect of preventing foreign matter from entering can be achieved. In this embodiment, the inner diameter of the nut 10, that is, the inner diameter of the sleeve hole 111 is 12.2 mm, and the diameter of the sealing body 211 is 11.8 mm. The diameter of the support column 230 is 6 mm. It should be understood that in other embodiments, the diameter of the support column 230 can also be different, as long as the diameter of the support column 230 is smaller than the inner diameter of the positioning hole 3. Of course, in other embodiments, the size of the nut 10 and the sealing cap 20 can be designed according to actual conditions.

[0074] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. A pipe connector for connecting to a stop valve (2), characterized in that: The pipe connector (1) comprises a nozzle (10) and a sealing cap (20); the sealing cap (20) is made of plastic material; A through hole (11) coaxially arranged with the hopper (10) is provided inside the hopper (10); The sealing cap (20) comprises a sealing head (210); A positioning groove (122) is provided on one of the inner peripheral wall of the through hole (11) and the outer peripheral wall of the sealing head (210), and a positioning column (21) matching with the positioning groove (122) is convexly provided on the other; the sealing head (210) is inserted into the through hole (11), and the positioning column (21) matches with the positioning groove (122); The nozzle (10) is used to be sleeved on the end of the stop valve (2) and to press the sealing head (210) onto the end surface of the stop valve (2).

2. The pipe connector according to claim 1, characterized in that: The positioning groove (122) is formed on the inner peripheral wall of the through hole (11), and the positioning groove (122) comprises a sliding section (1221) and a holding section (1222) which are connected to each other. The extending direction of the sliding section (1221) is the same as the extending direction of the axis of the through hole (11), and the holding section (1222) is arranged at an angle with the sliding section (1221).

3. The pipe connector according to claim 2, characterized in that: The through hole (11) has an open end for inserting the stop valve (2), and the holding section (1222) is located at an end of the sliding section (1221) away from the open end.

4. The pipe connector according to claim 2, characterized in that: The sliding section (1221) is perpendicular to the holding section (1222).

5. The pipe connector according to claim 1, characterized in that: The number of the positioning grooves (122) is greater than the number of the positioning columns (21).

6. The pipe connector according to claim 1, characterized in that: The sealing head (210) comprises a sealing body (211) and a sealing portion (212); the sealing portion (212) is arranged at one end of the sealing body (211), and the diameter of the sealing portion (212) is greater than the diameter of the sealing body (211); the nozzle (10) can press the sealing portion (212) against the end surface; and the positioning column (21) is protruding from the outside of the sealing body (211).

7. The pipe connector according to claim 6, characterized in that: The sealing portion (212) is annular, and the outer side of the sealing portion (212) is inclined toward a side away from the sealing body (211), so that the outer side of the sealing portion (212) forms a conical surface, and the nozzle (10) can be pressed on the conical surface to press the sealing portion (212) against the end surface.

8. The pipe connector according to claim 6, characterized in that: A conical groove (2121) is provided on a side of the sealing portion (212) away from the sealing body (211), so that the sealing portion (212) is in a flared shape.

9. The pipe connector according to claim 1, characterized in that: The end surface is provided with a positioning hole (3) coaxially arranged with the end of the stop valve (2); The sealing cap (20) further comprises a support column (230), wherein the support column (230) is coaxially arranged with the sealing head (210), and the support column (230) is arranged at one end of the sealing head (210), and the support column (230) is used to extend into the positioning hole (3) and cooperate with the positioning hole (3).

10. The pipe connector according to any one of claims 1 to 9, characterized in that: The nut (10) comprises a coaxially arranged sleeve body (110) and a holding body (120); a sleeve hole (111) for sleeve-mounting the stop valve (2) is provided in the middle of the sleeve body (110); a receiving hole (121) coaxially arranged with the sleeve hole (111) is provided in the middle of the holding body (120); the sleeve hole (111) and the receiving hole (121) are connected to form the through hole (11); the inner diameter of the sleeve hole (111) is larger than the inner diameter of the receiving hole (121); The positioning groove (122) is formed on the inner peripheral wall of the receiving hole (121); The sleeve body (110) is used to be sleeved on the end of the stop valve (2), and the holding body (120) is used to hold the sealing head (210) on the end surface.

11. The pipe connector according to any one of claims 1 to 9, characterized in that: The outer periphery of the nanotube (10) is cylindrical.

12. The pipe connector according to claim 11, characterized in that: The outer periphery of the hopper (10) is provided with a plurality of slots (12), and the plurality of slots (12) are arranged at equal intervals along the circumferential direction of the hopper (10).

13. An air conditioner, characterized in that: The invention comprises a pipe connector (1) as claimed in any one of claims 1 to 12.

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