Anti-detachment connection member, anti-detachment connection assembly and air conditioning equipment

Abstract

A detachment-preventing connecting member (100), wherein a detachment-preventing cam (20) is provided on an outer peripheral wall of the detachment-preventing connecting member (100), and the detachment-preventing cam (20) has a force-receiving surface (21) and a force-releasing surface (22) provided on both sides of the detachment-preventing cam (20) along the circumferential direction of the detachment-preventing connecting member (100), the force-receiving surface (21) is used for attaching the detachment-preventing connecting member (100) with an external tool, and the force-releasing surface (22) allows the detachment-preventing connecting member (100) to push away the external tool along the axial direction of the detachment-preventing connecting member (100) when the detachment-preventing connecting member (100) is detached with the external tool.

Description

[Technical field]

[0001] (Related Applications) This application claims priority to a Chinese patent application filed on June 9, 2020, bearing application number 202021045663.2 and entitled "Anti-detachment connecting member and assembly of anti-detachment connecting member," and this application claims priority to a Chinese patent application filed on December 30, 2020, bearing application number 202023333961.4 and entitled "Pipe fitting, anti-detachment connecting pipe assembly and air conditioning equipment," the entire contents of which are incorporated herein by reference.

[0002] The present application relates to the technical field of anti-detachment connection members for air conditioners, and in particular to an anti-detachment connection member, an anti-detachment connection assembly, and an air conditioner. [Background technology]

[0003] In the indoor unit of a conventional split-type air conditioner, a non-removable joint is required to ensure the sealing inside the indoor unit and prevent refrigerant leakage due to incorrect removal. Usually, a method of engaging a single joint with a hexagonal nut is adopted to connect the evaporator and the connecting pipe, or a method of welding the pipeline and the single joint is adopted to realize the anti-removal function. However, the single joint and the hexagonal nut are easily detached, and the connection between the two does not have the anti-removal function. In addition, the realization of anti-removal by welding the single joint to the pipeline is costly and requires complicated operation procedures. Summary of the Invention

[0004] The present application relates to a detachment prevention connecting member, the detachment prevention connecting member having an outer peripheral wall provided with an anti-detachment cam, the anti-detachment cam having a force receiving surface and a force releasing surface provided on both sides of the anti-detachment cam along the circumferential direction of the detachment prevention connecting member, The force receiving surface is used to attach the anti-detachment connecting member by an external tool, and the force releasing surface provides a non-detachment connecting member that allows the anti-detachment connecting member to push away the external tool along the axial direction of the anti-detachment connecting member when the anti-detachment connecting member is removed by the external tool.

[0005] With this design, the anti-detachment connecting member provided in this application has an anti-detachment function and can be fixedly connected to the fixing member and used as a package. Here, the external tool is a wrench (e.g., a joint wrench or a nut wrench). In the process of using a wrench to install the anti-detachment connecting member and the fixing member, the wrench can only generate a tightening torque on the anti-detachment connecting member through the force-receiving surface along the fastening direction to tighten the fixing member and the anti-detachment connecting member, and cannot generate a loosening torque on the anti-detachment connecting member along the reverse direction to detach the fixing member and the anti-detachment connecting member. In addition, since the anti-detachment cam is provided on the outer circumferential wall of the anti-detachment connecting member, it is easier for the operator to quickly fit the wrench to the outer circumferential wall of the anti-detachment connecting member, which improves the ease of the work, and in particular, makes it easier to fit the anti-detachment connecting member with a relatively small size. In addition, since the anti-detachment cam is provided on the outer circumferential wall of the anti-detachment connecting member, the length of the moment arm or couple arm of the tightening torque of the wrench to the anti-detachment connecting member is increased, so that the operator can complete the tightening of the fixing member and the anti-detachment connecting member with less effort.

[0006] In one embodiment, the outer peripheral surface of the anti-removal cam and the receiving surface intersect to form a force receiving intersection line, which is used to lock an external tool and apply torque.

[0007] With this design, the force-receiving intersection line can be used to lock and apply torque to an external tool, and the external tool can be a normal wrench, for example, an adjustable wrench or an open-end wrench. When the normal wrench is used to rotate the anti-detachment connecting member from the force-receiving surface toward the outer circumferential surface of the anti-detachment cam, the normal wrench can be locked on the side of the force-receiving intersection line close to the force-receiving surface, and the normal wrench is then used to rotate and move the anti-detachment connecting member to tighten it. When the normal wrench is used to rotate the anti-detachment connecting member from the outer circumferential surface of the anti-detachment cam toward the force-receiving surface, the force application direction of the normal wrench and the outer circumferential surface of the anti-detachment cam are parallel on the tangent plane at the force-receiving intersection line, so that the normal wrench cannot apply force to the anti-detachment cam, i.e., the anti-detachment connecting member cannot be loosened, thereby realizing the anti-detachment effect.

[0008] In one embodiment, the force-receiving intersection line is parallel to the central axis of the anti-detachment connecting member.

[0009] With this design, when the normal wrench is engaged with the force receiving intersection line and tightens the anti-detachment connecting member from the force receiving surface toward the outer circumferential surface of the anti-detachment cam, the force application direction of the normal wrench is perpendicular to the central axis of the anti-detachment connecting member, and at this time, the force applied by the normal wrench to the force receiving intersection line is the furthest from the central axis of the anti-detachment connecting member. As can be seen from physical common sense, at this time, the force applied by the normal wrench to the force receiving intersection line and the torque formed by the central axis of the anti-detachment connecting member are maximized, and the tightening effect is maximized.

[0010] In one embodiment, the force receiving surface is planar and parallel to the axial plane of the anti-detachment connecting member.

[0011] With this design, the force receiving surface and the corresponding engagement surface of the joint wrench can be brought into close contact with each other, and the force that the joint wrench applies to the force receiving surface is perpendicular to the axial direction of the through hole. When the nut wrench and the joint wrench are used to connect the anti-detachment connecting member and the fixing member, the joint wrench applies a contact support torque along the circumferential direction to the anti-detachment connecting member without generating a component force along the axial direction of the anti-detachment connecting member, thereby quickly and labor-savingly tightening the anti-detachment connecting member and the fixing member.

[0012] In one embodiment, a line of intersection is formed at the location where the force-receiving surface and the outer circumferential surface of the anti-detachment connecting member intersect, and the force-receiving surface is perpendicular to a tangent plane located at the line of intersection with the outer circumferential surface of the anti-detachment connecting member.

[0013] With such a design, the force receiving surface is perpendicular to the tangent plane located at the intersection line of the cylinders, which is advantageous for the tightening operation of the anti-detachment connecting member.

[0014] In one embodiment, the force relief surface is an inclined surface, an arcuate surface, or an inwardly concave curved surface.

[0015] In this way, by designing the force release surface as an inclined surface, an arc-shaped surface, or an inwardly concave curved surface, the shape of the force release surface becomes smoother and the friction coefficient between the force release surface and the joint wrench can be further reduced, thereby preventing the relative movement between the joint wrench and the force release surface from stagnation or clogging. In addition, the external tool can be easily lifted, preventing the external tool from being subjected to force, and preventing the anti-detachment connecting member from being loosened in the reverse direction, thereby realizing the anti-detachment function of the anti-detachment connecting member.

[0016] In one embodiment, the force release surface and the outer circumferential surface of the anti-detachment connecting member are smoothly connected to each other.

[0017] With this design, the external tool cannot loosen the anti-detachment connecting member because it is locked between the force release surface and the outer circumferential surface of the anti-detachment connecting member, and the force release efficiency of the force release surface of the anti-detachment connecting member is further improved, making the anti-detachment connecting member even more difficult to detach.

[0018] In one embodiment, the anti-detachment connecting member further includes a base located at one end or an outer peripheral wall of the anti-detachment connecting member, the base including a first end face relatively close to the anti-detachment cam, and a smooth transition between the first end face and the force release surface.

[0019] Designing the base in this way improves the strength of the connection between the anti-detachment cam and the anti-detachment connecting member. The smooth surface formed by the first end face and the force release surface significantly reduces the friction coefficient with the coupling wrench, and can prevent significant bending or protrusions from occurring on the force release surface, and can avoid the occurrence of abutment support force or static friction force between the anti-detachment connecting member and the force release surface, which will affect the anti-detachment effect of the anti-detachment connecting member.

[0020] In one embodiment, a male thread is provided at one end of the anti-detachment connecting member to form a first threaded portion, the anti-detachment connecting member includes a pillar, the first threaded portion is provided at one end of the pillar, and the anti-detachment cam is provided at the other end of the pillar remote from the first threaded portion, and the base is connected to the side of the anti-detachment cam away from the first threaded portion, or a through hole is provided in the anti-detachment connecting member, and the through hole has a female thread to form the first threaded portion.

[0021] With this design, a screw connection between the anti-detachment connecting member and the fixing member can be achieved.

[0022] In one embodiment, the number of anti-detachment cams is multiple, the multiple anti-detachment cams are distributed along the circumferential direction of the anti-detachment connecting member, and the force-receiving surfaces and the force-releasing surfaces are alternately distributed along the circumferential direction of the anti-detachment connecting member.

[0023] This design increases the number of force receiving surfaces acting on the anti-detachment connecting member of the external tool, so that there are more force application points when the external tool tightens the anti-detachment connecting member, improving the stability of the external tool in use, and the number of force releasing surfaces is correspondingly increased, improving the force releasing efficiency of the anti-detachment connecting member against the external tool.

[0024] In one embodiment, the anti-detachment cam includes a first protrusion and a second protrusion that are rotationally symmetrical about the axis of the anti-detachment connecting member.

[0025] With this design, the force receiving surface of the first protrusion and the force receiving surface of the second protrusion are on the same plane, which is advantageous for an external tool to act simultaneously on the first protrusion and the second protrusion to tighten the anti-detachment connecting member.

[0026] In one embodiment, the maximum outer diameter of the anti-detachment cam is the maximum diameter of the anti-detachment connecting member.

[0027] With this design, a technician can use an external tool to clamp the outer peripheral surface of the anti-detachment cam, thereby forcibly removing the anti-detachment connecting member and the fixing member without damaging the force releasing surface or force receiving surface of the anti-detachment cam, and thus does not affect the repeated use of the anti-detachment connecting member.

[0028] In one embodiment, the force receiving intersection line of the first protrusion and the force receiving intersection line of the second protrusion together form a maximum value of the outer diameter of the anti-detachment connecting member.

[0029] With this design, the normal wrench and the force receiving intersection line can easily come into contact and engage, so that the operator can easily install the anti-detachment connecting member using a normal wrench.

[0030] The present application further provides an assembly of a non-detachable connecting member including a fixing member and the above-mentioned non-detachable connecting member, wherein one of the non-detachable connecting member and the fixing member includes a first threaded portion having a female threaded hole, and the other includes a second threaded portion having a male thread, and the first threaded portion and the second threaded portion are screwed together.

[0031] The assembly of the anti-detachment connecting member provided in the present application has an anti-detachment function, in which an operator can only tighten the nut wrench engaged with the fixing member and the joint wrench engaged with the anti-detachment connecting member, but cannot loosen them.

[0032] In one embodiment, the anti-detachment cam is located at one end of the anti-detachment connecting member, the other end of the anti-detachment connecting member is provided with a male thread to form a first threaded portion, the force release surface faces toward the first threaded portion, the fixing member is provided with an assembly hole, the assembly hole is provided with a female thread, and the female thread and the first threaded portion of the anti-detachment connecting member are engaged with each other.

[0033] In one embodiment, a through hole is drilled in the anti-detachment connecting member, the through hole has a female thread and a first threaded portion is formed in the through hole, the end of the fixing member protrudes outward along the axial direction and a second threaded portion having a male thread is formed in the fixing member, and the fixing member enters the through hole via the second threaded portion and is screwed into the anti-detachment connecting member.

[0034] With this design, a more stable and reliable threaded connection is formed between the anti-detachment connecting member and the fixing member.

[0035] The present application further provides an air conditioning apparatus including a first tube, a second tube and the above-mentioned anti-detachment connection assembly, wherein the first tube and the second tube are connected to a anti-detachment connection member and a fixing member, respectively.

[0036] Such a design significantly reduces the complexity of air conditioner assembly and improves the efficiency of air conditioner assembly.

[0037] In one embodiment, the first tube is fixedly mounted to the anti-detachment connecting member, and one end of the second tube is clamped and fixed between the anti-detachment connecting member and the fixing member.

[0038] Such a design significantly reduces the complexity of air conditioner assembly and improves the efficiency of air conditioner assembly.

[0039] In one embodiment, the outer wall of the end of the anti-detachment connecting member is provided with a first tapered surface, and the assembly hole of the fixing member is provided with a second tapered surface corresponding thereto. One end of the second tube is provided with a cone-shaped clamping portion, and the cone-shaped clamping portion is clamped and fixed between the first tapered surface and the second tapered surface.

[0040] Such a design is advantageous in increasing the contact area between the conical clamp portion and the anti-detachment connecting member, and the contact area between the conical clamp portion and the fixing member, thereby improving the stability of the assembly of the air conditioning equipment.

[0041] In one embodiment, the anti-detachment connecting member or the fixing member is provided with a positioning segment, and the positioning segment abuts against the first tube or the second tube to perform positioning with respect to the first tube or the second tube.

[0042] With this design, the inner wall surface of the positioning segment abuts against the outer wall surface of the first or second tube, limiting movement of the first or second tube within the through hole and preventing it from sliding out of the through hole.

[0043] In one embodiment, the positioning segment is provided with a cone-shaped positioning surface, and a flared portion is provided at the end of the first tube or the second tube, and the cone-shaped positioning surface abuts against an outer wall of the flared portion.

[0044] With this design, the coaxiality between the first or second pipe and the anti-detachment connecting member or the fixing member can be further ensured, the positioning effect of the first or second pipe is more reliable, and the shaking is less likely to occur. In addition, in order to make the assembly of the anti-detachment connecting member have a better sealing effect, the positioning segment can be attached to the outer wall of the flare part to prevent the refrigerant from seeping out and leaking from the through hole. [Brief description of the drawings]

[0045] [Figure 1] 1 is a structural schematic diagram of a detachment prevention connecting member according to an embodiment of the present application; [Diagram 2] 2 is a schematic diagram of the detachment prevention connecting member shown in FIG. 1 from a first viewpoint. [Diagram 3] 2 is a schematic diagram of the detachment prevention connecting member shown in FIG. 1 from a second perspective. [Figure 4] 1 is a schematic diagram of a portion of the structure of an air conditioner according to an embodiment of the present application. [Diagram 5] 5 is a schematic diagram of an assembly of the anti-detachment connecting member shown in FIG. 4 from a first perspective. [Figure 6] 5 is a schematic diagram of the assembly of the anti-detachment connecting member shown in FIG. 4 from a second perspective. [Figure 7] 5 is a schematic diagram of the assembly of the anti-detachment connecting member shown in FIG. 4 from a third perspective. [Figure 8] FIG. 4 is a structural schematic diagram of a detachment prevention connecting member according to another embodiment of the present application. [Figure 9] FIG. 2 is a schematic diagram of a partial structure of an air conditioner according to another embodiment of the present application. [Figure 10] FIG. 10 is a cross-sectional view of the air conditioner shown in FIG.

[0046] 100 Anti-detachment connection member, 10 column, 11 through hole, 111 positioning segment, 20 Anti-detachment cam, 21 force receiving surface, 211 force receiving intersection line, 212 intersection line, 22 force releasing surface, 23 first protrusion, 24 second protrusion, 30 first screw portion, 40 base, 50 first tapered surface, 200 Anti-detachment connection assembly, 210 fixing member, 2101 assembly hole, 2102 second screw portion, 2103 second tapered surface, 300 air conditioning equipment, 310 first pipe body, 320 second pipe body, 3201 conical clamp portion, 330 sealing ring. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0047] Hereinafter, the technical aspects of the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, but it is clear that the described embodiments are only some of the embodiments of the present application, and are not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative efforts belong to the protection scope of the present application.

[0048] It should be explained that when an assembly is said to be "mounted" to another assembly, it may be mounted directly to the other assembly or there may be intervening assemblies present. When an assembly is said to be "mounted" to another assembly, it may be mounted directly to the other assembly or there may be intervening assemblies present at the same time. When an assembly is said to be "secured" to another assembly, it may be secured directly to the other assembly or there may be intervening assemblies present at the same time.

[0049] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. Herein, the terms used in the specification of this application are merely intended to describe specific embodiments and are not intended to limit the present application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0050] In another embodiment, the present application provides a detachment-proof connecting member 100 that is installed in the indoor unit of a separated type air conditioner and used to connect an evaporator and a connecting pipe, it can be understood that the detachment-proof connecting member 100 may also be used to connect other types of detachment-proof pipes.

[0051] In the indoor unit of a conventional split-type air conditioner, a non-removable joint is required to ensure the sealing inside the indoor unit and prevent refrigerant leakage due to incorrect removal. Usually, a method of engaging a single joint with a hexagonal nut is adopted to connect the evaporator and the connecting pipe, or a method of welding the pipeline and the single joint is adopted to realize the anti-removal function. However, the single joint and the hexagonal nut are easily detached, and the connection between the two does not have the anti-removal function. In addition, the realization of anti-removal by welding the single joint to the pipeline is costly and requires complicated operation procedures.

[0052] 1 to 3, an anti-detachment cam 20 is provided on the outer peripheral wall of the anti-detachment cam 100 provided in the present application, and the anti-detachment cam 20 has a force receiving surface 21 and a force releasing surface 22 provided on both sides of the anti-detachment cam 20 along the circumferential direction of the anti-detachment connecting member 100, the force receiving surface 21 is used for installing the anti-detachment connecting member 100 by an external tool, and the force releasing surface 22 allows the anti-detachment connecting member 100 to push away the external tool along the axial direction of the anti-detachment connecting member 100 when the anti-detachment connecting member 100 is removed by the external tool.

[0053] 4 to 7, in one embodiment, the anti-detachment joint 100 is an anti-detachment joint, the joint of the anti-detachment joint 100 is substantially tubular, and a through hole 11 is drilled therein for the first tube 310 to enter. The anti-detachment joint is used by engaging with a fixing member, and the fixing member also has a through hole 11 drilled therein for the second tube 320 to enter. The anti-detachment joint and the fixing member are screwed together. It can be understood that in other embodiments, the anti-detachment joint 100 can be an anti-detachment nut, and both the fixing member and the pipe joint are provided with an anti-detachment structure.

[0054] Specifically, the anti-detachment connecting member 100 includes a column body 10, and the anti-detachment cam 20 is formed to extend in a direction away from the axis and protrude from the outer circumferential wall of the column body 10 of the anti-detachment connecting member 100. With this design, the anti-detachment cam 20 is more firmly positioned in the anti-detachment connecting member 100.

[0055] In one embodiment, the outer peripheral surface of the anti-removal cam 20 and the force receiving surface 21 intersect to form a force receiving intersection line 211, which is used to lock an external tool and apply torque.

[0056] In practical application, the anti-detachment connecting member 100 is screwed into the fixing member 210. The external tool may be a joint wrench or a nut wrench, or may be a normal wrench, such as an adjustable wrench or an open-end wrench.

[0057] For example, the external tool includes a joint wrench engaged with the anti-detachment cam 20 and the outer peripheral wall of the anti-detachment connecting member 100, and further includes a nut wrench used to clamp and fix the fixing member 210. The outer peripheral wall of the anti-detachment connecting member 100 that is inserted into the joint wrench is a rotating surface, making it easy for an operator to rotate the joint wrench to apply a tightening torque to the anti-detachment connecting member 100. When the joint wrench engages the anti-detachment connecting member 100, the joint wrench can be rotated to contact the force receiving surface 21 or the force releasing surface 22. The joint wrench can generate a force or a component force perpendicular to the radial direction of the anti-detachment connecting member 100, i.e., a contact support force acting on the force receiving surface 21, so that the two are contacted and supported by each other. The force release surface 22 generates a component force along the axial direction of the anti-detachment connecting member 100 against the coupling wrench, allowing the coupling wrench to rotate further, and since there is insufficient force to generate a relatively large abutment support force or static friction force between the coupling wrench and the force release surface 22, the coupling wrench moves against the force release surface 22, and the anti-detachment cam 20 pushes the coupling wrench away from the anti-detachment connecting member 100 along the axial direction of the anti-detachment connecting member 100 via the force release surface 22.

[0058] Of course, the external tool for applying an external force to the anti-detachment connecting member 100 may be a normal wrench or a nut wrench. When the anti-detachment connecting member 100 is turned from the force receiving surface 21 toward the outer circumferential surface of the anti-detachment cam 20 by a normal wrench or a nut wrench, the normal wrench or the nut wrench can be engaged with the side of the force receiving intersection 211 close to the force receiving surface 21, and at this time, the anti-detachment connecting member 100 is tightened by turning and moving the anti-detachment connecting member 100 by a normal wrench or a nut wrench. When the anti-detachment connecting member 100 is turned from the outer circumferential surface of the anti-detachment cam 20 toward the force receiving surface 21 by a normal wrench or a nut wrench, the force applying direction of the normal wrench or the nut wrench and the outer circumferential surface of the anti-detachment cam 20 are parallel on the tangent plane at the force receiving intersection 211, so that the normal wrench or the nut wrench cannot apply force to the anti-detachment cam 20, i.e., the anti-detachment connecting member 100 cannot be loosened, thereby realizing the anti-detachment effect.

[0059] When the coupling wrench is selected and used to install the anti-detachment connecting member 100, the process of installing the anti-detachment connecting member 100 and the fixing member 210 is as follows: the operator first screws the fixing member 210 and the anti-detachment connecting member 100 together, clamps the fixing member 210 using a nut wrench, and then engages the anti-detachment connecting member 100 with the coupling wrench and rotates one of the coupling wrench and the nut wrench along the fastening direction, i.e., the direction in which the coupling wrench and the force-receiving surface 21 are stuck together and supported in contact with each other, in which the nut wrench applies a fastening torque to the fixing member 210, the coupling wrench generates a supporting force against the force-receiving surface 21, and the coupling wrench applies a tightening torque to the anti-detachment connecting member 100 in the opposite direction to the fastening torque. Due to the synergistic action of the fastening torque and the tightening torque, the fixing member 210 and the anti-detachment connecting member 100 are tightened by screwing together. When the joint wrench is rotated in the reverse direction to contact the force release surface 22 while maintaining the clamped state between the nut wrench and the fixing member 210, the joint wrench cannot be supported against the force release surface 22 and slides along the force release surface 22, so that the joint wrench cannot generate a loosening torque opposite to the tightening torque on the anti-detachment connecting member 100. Finally, the joint wrench is released by the anti-detachment cam 20, that is, the joint wrench rotates in the fastening direction and is supported against the force receiving surface 21 to generate a tightening torque on the anti-detachment connecting member 100, so that the anti-detachment connecting member 100 and the fixing member 210 can only be fastened and connected via the screw, and cannot apply a loosening torque to the anti-detachment connecting member 100 in the reverse direction so that the anti-detachment connecting member 100 and the fixing member 210 are loosened and separated, so that the anti-detachment connecting member 100 and the fixing member 210 cannot be detached.

[0060] When a normal wrench or a nut wrench is selected and used to install the anti-detachment connecting member 100, the process of installing the anti-detachment connecting member 100 and the fixing member 210 is almost the same as the above process, with the following differences: a normal wrench or a nut wrench can only be engaged with the force receiving intersection line 211 to apply a tightening torque, but cannot apply a loosening torque through the force receiving intersection line 211.

[0061] The anti-detachment connecting member 100 provided in the present application has an anti-detachment function and can be fixedly connected to the fixing member 210 and used as a package. In the process of installing the anti-detachment connecting member 100 and the fixing member 210 using a joint wrench, a nut wrench or a normal wrench, the wrench can only generate a tightening torque on the anti-detachment connecting member 100 through the force-receiving surface 21 along the fastening direction to tighten the fixing member 210 and the anti-detachment connecting member 100, but cannot generate a loosening torque on the anti-detachment connecting member 100 along the reverse direction to detach the fixing member 210 and the anti-detachment connecting member 100. In addition, since the anti-detachment cam 20 is provided on the outer circumferential wall of the anti-detachment connecting member 100, it is easier for the operator to quickly fit the wrench to the outer circumferential wall 100 of the anti-detachment connecting member, especially for fitting the anti-detachment connecting member 100 with a relatively small size. In addition, it is easier for the operator to quickly engage the normal wrench or nut wrench with the force-receiving intersection line 211, improving the ease of operation. In addition, since the anti-detachment cam 20 is provided on the outer peripheral wall of the anti-detachment connecting member 100, the length of the moment arm or couple arm of the tightening torque of the wrench on the anti-detachment connecting member 100 is increased, thereby enabling the worker to complete the tightening between the fixing member 210 and the anti-detachment connecting member 100 with less effort.

[0062] Alternatively, in one embodiment, the outer wall of the anti-detachment connecting member 100 has a frustoconical surface shape, and the outer diameter of the anti-detachment connecting member 100 increases along the direction in which the joint wrench fits closely to the anti-detachment connecting member 100. In other embodiments, the shape of the outer wall of the anti-detachment connecting member 100 may be other types of revolution surfaces, such as a cylindrical surface or a combination of a cylindrical surface and a frustoconical surface.

[0063] In this embodiment, the fastening direction is a clockwise direction and the rotation direction of the force release surface 22 is a counterclockwise direction. In another embodiment, the fastening direction may be a counterclockwise direction and the rotation direction of the force release surface 22 may be a clockwise direction.

[0064] In one embodiment, the force receiving intersection line 211 is parallel to the central axis of the anti-detachment connecting member 100 .

[0065] With this design, when a normal wrench is engaged with the force receiving intersection 211 and tightens the anti-detachment connecting member 100 from the force receiving surface 21 toward the outer circumferential surface of the anti-detachment cam 20, the force application direction of the normal wrench is perpendicular to the central axis of the anti-detachment connecting member 100, and at this time, the force applied by the normal wrench to the force receiving intersection 211 is the furthest from the central axis of the anti-detachment connecting member 100. As can be seen from common physical knowledge, at this time, the torque formed by the force applied by the normal wrench to the force receiving intersection 211 and the central axis of the anti-detachment connecting member 100 is maximized, and the tightening effect is maximized.

[0066] In one embodiment, the force receiving surface 21 is planar and parallel to the axial plane of the anti-detachment connecting member 100 .

[0067] With this design, the force receiving surface 21 and the corresponding engagement surface of the joint wrench can be brought into close contact with each other, and furthermore, the force that the joint wrench acts on the force receiving surface 21 is perpendicular to the axial direction of the through hole 11. When the nut wrench and the joint wrench are used to connect the anti-detachment connecting member 100 and the fixing member 210, the joint wrench applies a contact support torque along the circumferential direction to the anti-detachment connecting member 100 without generating a component force along the axial direction of the anti-detachment connecting member 100, thereby quickly and labor-savingly tightening the anti-detachment connecting member 100 and the fixing member 210.

[0068] It can be understood that as long as the coupling wrench can be engaged with the anti-detachment connecting member 100 and the coupling wrench can generate a contact support force or a contact support force component perpendicular to the radial direction of the anti-detachment connecting member 100 against the force receiving surface 21, thereby generating a tightening torque for the anti-detachment connecting member 100, the force receiving surface 21 may be curved and perpendicular to the radial direction of the through hole 11.

[0069] In one embodiment, a line of intersection 212 is formed at the position where the force receiving surface 21 and the outer circumferential surface of the cylinder 10 intersect, and the force receiving surface 21 is perpendicular to the tangent plane of the line of intersection 212 of the cylinder 10, and the force releasing surface 22 is an inclined surface, an arcuate surface, or an inwardly concave curved surface. When the force application direction of the external tool is perpendicular to the force receiving surface 21 and the force receiving surface 21 is perpendicular to the tangent plane of the line of intersection 212 of the cylinder 10, the force application direction of the external tool is parallel to the tangent plane. As is known from common sense, since the tangent plane of the line of intersection 212 is perpendicular to the radius of curvature of the line of intersection 212 of the cylinder 10, the force application direction of the external tool is perpendicular to the radius of curvature of the line of intersection 212 of the cylinder 10. As can be seen from the physical formula, the relationship between the torque M, the length L of the moment arm, the magnitude of the force F, and the included angle A between the force and the moment arm is M=L*F*sinA. When the force is perpendicular to the moment arm, the torque is maximum, that is, when the force application direction of the external tool is perpendicular to the radius of curvature at the intersection line 212 of the column body 10, the torque applied by the external tool to the anti-detachment connecting member 100 is maximum, which is favorable for the tightening operation of the anti-detachment connecting member 100. By designing the force release surface 22 as an inclined surface or an arc-shaped surface, the shape of the force release surface 22 becomes smoother, and the friction coefficient between the force release surface 22 and the joint wrench can be further reduced, so that the relative movement between the joint wrench and the force release surface 22 is prevented from being stagnate or jammed, and the external tool can be easily lifted, so that the external tool is not subjected to force, and the anti-detachment connecting member 100 cannot be loosened in the reverse direction, thereby realizing the anti-detachment function of the anti-detachment connecting member 100.

[0070] Optionally, in one embodiment, the force release surface 22 is a helical surface having a center line on the axis of the detachment prevention connecting member 100. When viewed from the side direction of the detachment prevention connecting member 100, the force release surface 22 is recessed inward along the direction in which the joint wrench is fitted to the detachment prevention connecting member 100.

[0071] With such a design, the shape of the force release surface 22 becomes smoother and the friction coefficient between the force release surface 22 and the joint wrench can be further reduced, thereby avoiding the relative movement between the joint wrench and the force release surface 22 from being stagnate or blocked, and better realizing the anti-detachment function of the anti-detachment connecting member 100.

[0072] It can be understood that the force release surface 22 may be arranged facing outward (outwardly convex) along the axial direction of the anti-detachment connecting member 100, and description of the force release surface 22 arranged facing outward (outwardly convex) along the axial direction of the anti-detachment connecting member 100 will be omitted in this specification.

[0073] In one embodiment, the force release surface 22 and the outer circumferential surface of the anti-detachment connecting member 100 are smoothly connected. With this design, an external tool cannot loosen the anti-detachment connecting member 100 by being locked between the force release surface 22 and the outer circumferential surface of the anti-detachment connecting member 100. The force release efficiency of the force release surface 22 of the anti-detachment connecting member 100 is further improved, so that the anti-detachment connecting member 100 is more difficult to detach.

[0074] In one embodiment, the anti-detachment connecting member 100 further includes a base 40 located at one end or outer peripheral wall of the anti-detachment connecting member 100, and the base 40 includes a first end face relatively close to the anti-detachment cam 20, and there is a smooth transition between the first end face and the force release surface 22.

[0075] Designing the base 40 in this manner improves the strength of the connection between the anti-detachment cam 20 and the anti-detachment connecting member 100. The smooth surface formed by the first end face and the force release surface 22 significantly reduces the friction coefficient with the coupling wrench and can prevent significant bending or protrusion from occurring on the force release surface 22, thereby preventing the occurrence of abutment support force or static friction force between the anti-detachment connecting member 100 and the force release surface 22, which will affect the anti-detachment effect of the anti-detachment connecting member 100.

[0076] In one embodiment, the base 40 can be located at one end or on the outer peripheral wall of the anti-detachment connecting member 100 to stop an external tool and is used to limit the depth to which the external tool is fitted into the anti-detachment connecting member 100.

[0077] Specifically, in this embodiment, the base 40 can stop the depth to which the joint wrench is fitted into the anti-detachment connecting member 100 .

[0078] With this design, the base 40 can restrict the joint wrench from being further fitted into the anti-detachment connecting member 100, to prevent the joint wrench from colliding and interfering with the fixing member 210 or other important external components, causing unnecessary damage. In addition, the base 40 can hold the joint wrench and the anti-detachment cam 20 at the engagement area with the anti-detachment connecting member 100 to have the largest engagement area, so that the process of tightening the anti-detachment connecting member 100 and the fixing member 210 is more reliable and prevents them from slipping off.

[0079] In another embodiment, the base 40 is a truncated cone structure provided at the end of the anti-detachment connecting member 100, and the outer diameter of the base 40 is larger than the outer diameter of the outer peripheral wall of the anti-detachment connecting member 100. The external tool is fitted into the outer peripheral wall of the anti-detachment connecting member 100 from one end of the anti-detachment connecting member 100 that is relatively distant from the base 40, and the first end face is fastened to the end of the external tool. The force release surface 22 is recessed inward along the axial direction of the anti-detachment connecting member 100, so that the force release surface 22 and the first end face together form a smooth surface without any bends or protrusions.

[0080] With such a design, the anti-detachment effect of the anti-detachment connecting member 100 is more significant, and the smooth surface formed by the first end face and the force release surface 22 can significantly reduce the friction coefficient between the coupling wrench, prevent significant bending or protrusions from occurring on the force release surface 22, and avoid the occurrence of abutment support force or static friction force between the anti-detachment connecting member 100 and the force release surface 22, thereby affecting the anti-detachment effect of the anti-detachment connecting member 100.

[0081] In another embodiment, the maximum outer diameter of the anti-detachment cam 20 is the maximum diameter of the anti-detachment connecting member 100 .

[0082] With this design, a technician can use an external tool to clamp the outer peripheral surface of the anti-detachment cam 20, thereby forcibly removing the anti-detachment connecting member 100 and the fixing member 210 without damaging the force releasing surface 22 or the force receiving surface 21 of the anti-detachment cam 20, and therefore does not affect the repeated use of the anti-detachment connecting member 100.

[0083] Furthermore, the force receiving intersection line 211 of the first protrusion 23 and the force receiving intersection line 211 of the second protrusion 24 together form the maximum value of the outer diameter of the anti-detachment connecting member 100 .

[0084] With this design, the force receiving intersection line 211 can easily come into contact with and engage with a normal wrench, and the worker can easily install the anti-detachment connecting member 100 using a normal wrench.

[0085] In one embodiment, the number of anti-detachment cams 20 is multiple, and the multiple anti-detachment cams 20 are distributed along the circumferential direction of the anti-detachment connecting member 100, and the force-receiving surfaces 21 and the force-releasing surfaces 22 are alternately distributed along the circumferential direction of the anti-detachment connecting member 100.

[0086] Such a design increases the number of force receiving surfaces 21 acting on the external tool anti-detachment connecting member 100, thereby improving the stability of use of the external tool since there are more force application points when the external tool tightens the anti-detachment connecting member 100. In addition, the number of force releasing surfaces 22 is correspondingly increased, improving the efficiency of releasing force of the anti-detachment connecting member 100 against the external tool.

[0087] In one embodiment, the anti-detachment cam 20 includes a first protrusion 23 and a second protrusion 24 that are rotationally symmetrical about the axis of the anti-detachment connecting member 100 .

[0088] With this design, the force-receiving surface 21 of the first protrusion 23 and the force-receiving surface 21 of the second protrusion 24 are on the same plane, which is advantageous for an external tool to act simultaneously on the first protrusion 23 and the second protrusion 24 to tighten the anti-detachment connecting member 100.

[0089] In one embodiment of the present application, the number of anti-detachment cams 20 is at least two, and the at least two anti-detachment cams 20 are evenly distributed on the outer peripheral wall of the anti-detachment connecting member 100 along the circumferential direction of the anti-detachment connecting member 100.

[0090] With this design, if an individual anti-detachment cam 20 is damaged due to the joint wrench slipping or the like, the joint wrench can be engaged with another anti-detachment cam 20, so that the fastening attachment between the fixing member 210 and the anti-detachment connecting member 100 is not affected.

[0091] Meanwhile, the multiple anti-detachment cams 20 have multiple force receiving surfaces 21, which increases the contact area between the joint wrench and the force receiving surfaces 21. The joint wrench is stably supported in contact with the force receiving surfaces 21, which reduces the risk of the joint wrench and the anti-detachment connecting member 100 slipping off, and further reduces the support force received by each anti-detachment cam 20, thereby reducing the stress near the base position of the outer circumferential wall of the anti-detachment connecting member 100 for each anti-detachment cam 20, and finally reduces the risk of the anti-detachment cam 20 bursting or being crushed when a relatively large tightening torque and fastening torque are applied to the anti-detachment connecting member 100 and the fixing member 210, respectively.

[0092] In one embodiment, as shown in FIG. 1 to FIG. 7, the anti-detachment connecting member 100 is provided with a through hole 11, and the through hole 11 has a female thread to form a first screw portion 30.

[0093] 8 to 10, one end of the anti-detachment connecting member 100 is provided with a male thread to form the first threaded portion 30, the first threaded portion 30 is provided at one end of the column 10, the anti-detachment cam 20 is provided at the other end of the column 10 away from the first threaded portion 30, and the base 40 is connected to the side of the anti-detachment cam 20 away from the first threaded portion 30. With this design, the arrangement of the anti-detachment cam 20 in the anti-detachment connecting member 100 becomes more secure.

[0094] The present application further provides an assembly 200 of a non-detachable connecting member including a fixing member 210 and the above-mentioned non-detachable connecting member 100, wherein one of the non-detachable connecting member 100 and the fixing member 210 includes a first screw portion 30 having an internal threaded hole of the through hole 11, and the other includes a second screw portion 2102 having an external thread, and the first screw portion 30 and the second screw portion 2102 are screwed together.

[0095] The assembly of the anti-detachment connecting member 100 provided in the present application has an anti-detachment function. An operator can only tighten the nut wrench engaged with the fixing member 210 and the joint wrench engaged with the anti-detachment connecting member 100, but cannot loosen them.

[0096] In an embodiment such as that shown in Figures 1 to 7, a through hole 11 is drilled in the anti-detachment connecting member 100, the through hole 11 has a female thread and a first threaded portion 30 is formed in the through hole 11, the end of the fixing member 210 protrudes outward along the axial direction and has a second threaded portion 2102 having a male thread, and the fixing member 210 enters the through hole 11 via the second threaded portion 2102 and is screwed into the anti-detachment connecting member 100.

[0097] With this design, a more stable and reliable threaded connection is formed between the anti-detachment connecting member 100 and the fixing member 210 .

[0098] Specifically, in this embodiment, the anti-detachment connecting member 100 is an anti-detachment joint, and the fixing member 210 is a fixing member, and the two are connected via a screw. In another embodiment, the anti-detachment connecting member 100 can be an anti-detachment nut, and the fixing member 210 can be a pipe joint, and both the fixing member 210 and the pipe joint are provided with an anti-detachment structure, that is, both the anti-detachment connecting member 100 and the fixing member 210 are provided with an anti-detachment cam 20 on the outer circumferential wall.

[0099] Furthermore, after the fixing member 210 and the anti-detachment connecting member 100 are attached and fixed, the diameter of the anti-detachment connecting member 100 is the maximum diameter of the assembly of the anti-detachment connecting member 100 .

[0100] It should be noted that in this embodiment, the diameter of the detachment-preventing connecting member 100 refers to the maximum value among the diameters of each portion of the detachment-preventing connecting member 100, for example, it refers to the maximum outer diameter of the detachment-preventing cam 20, not the diameter of the outer circumferential wall of the detachment-preventing connecting member 100. When the detachment-preventing connecting member 100 further includes a base 40, the diameter of the detachment-preventing connecting member 100 refers to the outer diameter of the base 40.

[0101] With this design, a technician can use an external tool to clamp the outside of the anti-detachment connecting member 100 to forcibly detach the anti-detachment connecting member 100 and the fixing member 210. Since the technician uses the external tool to clamp the position where the diameter of the anti-detachment connecting member 100 is maximum, the external tool can be prevented from pressing against other parts in the assembly of the anti-detachment connecting member 100.

[0102] In the embodiment shown in Figures 8 to 10, the anti-detachment cam 20 is located at one end of the anti-detachment connecting member 100, a male thread is provided at the other end of the anti-detachment connecting member 100 to form a first threaded portion 30, the force release surface 22 faces the first threaded portion 30, an assembly hole 2101 is provided in the fixing member 210, a female thread is provided in the assembly hole 2101 to form a second threaded portion 2102, and the second threaded portion 2102 and the first threaded portion 30 of the anti-detachment connecting member 100 are engaged with each other.

[0103] When assembling the anti-detachment connection assembly 200, one end of the anti-detachment connection member 100 provided with the first screw portion 30 enters into the assembly hole 2101 of the fixing member 210, and the second screw portion 2102 and the first screw portion 30 are engaged with each other, thereby screwing together the fixing member 210 and the anti-detachment connection member 100. The machining process of the second screw portion 2102 and the first screw portion 30 is highly mature and the machining method is simple, which reduces the machining difficulty of the anti-detachment connection assembly 200 and improves the production efficiency of the anti-detachment connection assembly 200.

[0104] In this embodiment, the force release surface 22 faces the first screw portion 30, and the force receiving surface 21 and the force release surface 22 are provided on both sides of the anti-detachment cam 20 along the circumferential direction of the anti-detachment connecting member 100. In the process of assembling the anti-detachment connecting member 100, an external tool acts on the force receiving surface 21 of the anti-detachment cam 20 to engage the anti-detachment connecting member 100 with the external tool and rotate it along one direction (this direction may be counterclockwise or clockwise), and finally the anti-detachment connecting member 100 is assembled to the fixing member 210. When it is necessary to remove the anti-detachment connecting member 100, it is necessary to rotate it along the opposite direction to that when it is assembled. In this case, when the anti-detachment connecting member 100 is loosened in the reverse direction using an external tool, the force releasing surface 22 raises the external tool so that the external tool is not subjected to force and cannot be loosened in the reverse direction, and thus the anti-detachment function of the anti-detachment connecting member 100 can be realized by simply providing the anti-detachment cam 20 and providing the force receiving surface 21 and the force releasing surface 22 on the anti-detachment cam 20. The above-mentioned anti-detachment connecting member 100 is simply designed and easily assembled, which greatly reduces the cost of using the air conditioning equipment 300. In addition, the force releasing surface 22 faces the first screw portion 30, which further increases the difficulty of removing the anti-detachment connecting member 100.

[0105] The assembly of the anti-detachment connecting member 100 provided in the present application has an anti-detachment function, in which the anti-detachment connecting member 100 and the fixing member 210 realize a non-detachable fixed connection. The operator can only tighten the fixing member 210 and the anti-detachment connecting member 100 with the nut wrench and the joint wrench, but cannot loosen them. In addition, since the anti-detachment cam 20 is provided on the outer circumferential wall of the anti-detachment connecting member 100, it is easier for the operator to quickly fit the wrench to the outer circumferential wall 100 of the anti-detachment connecting member, which improves the ease of the work, especially, it is easier to fit the anti-detachment connecting member 100 with a relatively small size. In addition, since the anti-detachment cam 20 is provided on the outer circumferential wall of the anti-detachment connecting member 100, the length of the moment arm or couple arm of the tightening torque of the joint wrench to the anti-detachment connecting member 100 is increased, so that the operator can complete the tightening between the fixing member 210 and the anti-detachment connecting member 100 with less effort.

[0106] The present application further provides an air conditioning equipment 300, including a first tube 310, a second tube 320 and the above-mentioned anti-detachment connection assembly 200, in which the first tube 310 and the second tube 320 are respectively connected to the anti-detachment connection member 100 and the fixing member 210. Such a design greatly reduces the complexity of assembling the air conditioning equipment 300 and improves the efficiency of assembling the air conditioning equipment 300.

[0107] When assembling the air conditioner 300, the first pipe 310 is fixed to the anti-detachment connecting member 100, and one end of the second pipe 320 is clamped and fixed between the anti-detachment connecting member 100 and the fixing member 210. Therefore, the first pipe 310 and the second pipe 320 can be connected by simply assembling the anti-detachment connecting member 100 and the fixing member 210 after one end of the second pipe 320 is mounted in the assembly chamber of the fixing member 210. In this way, the complexity of assembling the air conditioner 300 is greatly reduced, and the efficiency of assembling the air conditioner 300 is improved.

[0108] 10, a sealing ring 330 is provided between the anti-detachment connecting member 100 and the fixing member 210, and the sealing ring 330 is fitted to one end of the anti-detachment connecting member 100 close to the second tube 320. In this way, the sealing ring 330 can prevent the flow medium in the second tube 320 from leaking.

[0109] Furthermore, the air conditioner 300 further includes an air conditioner indoor unit and an air conditioner outdoor unit, the first pipe 310 being connected to the air conditioner indoor unit and the second pipe 320 being connected to the air conditioner outdoor unit.

[0110] In one embodiment, the anti-detachment connecting member 100 or the fixing member 210 is provided with a positioning segment 111, which abuts against the first tube 310 or the second tube 320 to perform positioning relative to the first tube 310 or the second tube 320.

[0111] 1 to 7, a through hole 11 is drilled inside the anti-detachment connecting member 100, and the through hole 11 has a first screw portion 30 and a positioning segment 111 that are connected to each other, and an end of the fixing member 210 is formed with a second screw portion 2102 that protrudes outward along the axial direction and has a male screw, and the fixing member 210 enters the through hole 11 via the second screw portion 2102 and is screwed into the anti-detachment connecting member 100. The maximum outer diameter of the first tube 310 or the second tube 320 entering the through hole 11 is larger than the minimum inner diameter of the positioning segment 111, and the first tube 310 or the second tube 320 can move in the through hole 11 so that the positioning segment 111 abuts against the outer wall of one of the first tube 310 or the second tube 320, and therefore the positioning segment 111 can restrict the first tube 310 or the second tube 320 from moving along the direction of entering the through hole 11 and leaving the through hole 11. In the embodiment shown in Figs. 8 to 10, the positioning segment 111 is provided on the fixed member 210, and the positioning principle is substantially the same as the positioning principle described above, and the description thereof is omitted here.

[0112] Such a design provides a more stable and reliable screw connection between the anti-detachment connecting member 100 and the fixing member 210. The inner wall surface of the positioning segment 111 abuts against the outer wall surface of the first tube 310 or the second tube 320, restricting the movement of the first tube 310 or the second tube 320 within the through-hole 11 and preventing it from slipping out of the through-hole 11.

[0113] Furthermore, as shown in FIG. 10, the positioning segment 111 is provided with a cone-shaped positioning surface, and a flare portion is provided at the end of the first tube 310 or the second tube 320, and when the first tube 310 or the second tube 320 enters the through hole 11, the cone-shaped positioning surface abuts against the outer wall of the flare portion.

[0114] Specifically, in this embodiment, the side of the positioning segment 111 with a relatively small inner diameter is close to the end of the anti-detachment connecting member 100, and accordingly, a flared portion is provided at the end that enters the through-hole 11 of the first tube 310 or the second tube 320, and the outer wall of the flared portion presents a conical surface and abuts against the inner wall of the positioning segment 111. After the fixing member 210 and the anti-detachment connecting member 100 are attached, the second screw portion 2102 of the fixing member 210 enters the through-hole 11 and presses the flared portion, so that the flared portion is limited between the second screw portion 2102 and the inner wall surface of the positioning segment 111, and the positioning of the positioning segment 111 to the first tube 310 or the second tube 320 is further realized.

[0115] With this design, the coaxiality between the first pipe 310 or the second pipe 320 and the anti-detachment connecting member 100 or the fixing member 210 can be further ensured, the positioning effect of the first pipe 310 or the second pipe 320 can be more reliable, and the shaking is less likely to occur. In addition, in order to make the assembly of the anti-detachment connecting member 100 have a better sealing effect, the positioning segment 111 can be attached to the outer wall of the flare part to prevent the refrigerant from seeping out and leaking from the through hole 11.

[0116] In other embodiments, it can be understood that the positioning segment 111 may be a stepped hole or a hole of other shapes, and accordingly, the flare portion may also be a rotating surface structure of other shapes, for example, a variable diameter segment (variable diameter step) formed by protruding the end of the first tube 310 or the second tube 320 along the radial direction, and after the fixing member 210 and the anti-detachment connecting member 100 are attached, the flare portion can still be restricted between the second threaded portion 2102 and the inner wall surface of the positioning segment 111 to be positioned relative to the first tube 310 or the second tube 320.

[0117] 10, a first tapered surface 50 is provided on the outer wall of the end of the anti-detachment connecting member 100, and a second tapered surface 2103 is provided in the assembly hole 2101 of the fixing member 210 corresponding to the first tapered surface 50. A cone-shaped clamping portion 3201 is provided on one end of the second tubular body 320, and the cone-shaped clamping portion 3201 is clamped and fixed between the first tapered surface 50 and the second tapered surface 2103. When assembling, the cone-shaped clamping portion 3201 of the second tubular body 320 is engaged with the second tapered surface 2103, and then the anti-detachment connecting member 100 and the fixing member 210 are assembled, whereby the cone-shaped clamping portion 3201 can be clamped and fixed between the first tapered surface 50 and the second tapered surface 2103. The first tapered surface 50 and the second tapered surface 2103 are easy to process, and designing them in this manner is advantageous in increasing the contact area between the conical clamping portion 3201 and the anti-detachment connecting member 100, and the contact area between the conical clamping portion 3201 and the fixing member 210, thereby improving the stability of the assembly of the air conditioning equipment 300.

[0118] The technical features of the above embodiments may be combined in any manner. For the sake of brevity, not all possible combinations of the technical features in the above embodiments have been described. However, to the extent that any combination of these technical features is not contradictory, it should be considered as being within the scope of the present specification.

[0119] The above examples merely show some embodiments of the present application, and the description is specific and detailed, but should not be understood as limiting the scope of the application. It should be noted that those skilled in the art can make some further modifications and improvements without departing from the spirit of the present application, all of which are within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be subject to the scope of the appended claims.

Claims

1. A detachment-preventing connecting member, the detachment-preventing connecting member having an anti-detachment cam on an outer peripheral wall thereof, the anti-detachment cam having a force receiving surface and a force releasing surface provided on both sides of the anti-detachment cam along a circumferential direction of the anti-detachment connecting member, the force receiving surface being used for attaching the anti-detachment connecting member by an external tool, and the force releasing surface allowing the anti-detachment connecting member to push away the external tool along an axial direction of the anti-detachment connecting member when the anti-detachment connecting member is detached by the external tool, One of the anti-detachment connecting member and the fixing member includes a first screw portion, and the other includes a second screw portion, and the first screw portion and the second screw portion are screwed together; the anti-detachment cam is located at one end of the anti-detachment connecting member, the other end of the anti-detachment connecting member is provided with a male thread to form the first threaded portion, and the force release surface faces the first threaded portion, An anti-detachment connection assembly, wherein the fixing member has an assembly hole, the assembly hole has a female thread to form the second screw portion, and the second screw portion and the first screw portion of the anti-detachment connection member are engaged with each other.

2. 2. The anti-detachment connection assembly according to claim 1, wherein the outer peripheral surface of the anti-detachment cam and the force receiving surface intersect to form a force receiving intersection line, and the force receiving intersection line is used to lock an external tool and apply torque.

3. The detachment prevention connection assembly according to claim 2 , wherein the force-receiving intersection line is parallel to a central axis of the detachment prevention connection member.

4. The anti-detachment connection assembly according to claim 2 , wherein the force-receiving surface is planar and parallel to an axial plane of the anti-detachment connection member.

5. The anti-detachment connection assembly according to claim 3, wherein an intersection line is formed at a position where the force-receiving surface and the outer peripheral surface of the anti-detachment connection member intersect, and the force-receiving surface is perpendicular to a tangent plane located at the intersection line of the outer peripheral surface of the anti-detachment connection member.

6. The anti-detachment connection assembly according to claim 2 , wherein the force release surface is an inclined surface, an arcuate surface, or an inwardly concave curved surface.

7. The detachment prevention connection assembly according to claim 6 , wherein the force release surface and the outer circumferential surface of the detachment prevention connection member are smoothly connected to each other.

8. 8. The anti-detachment connection assembly according to claim 7, wherein the anti-detachment connection member further includes a base located at one end or an outer peripheral wall of the anti-detachment connection member, the base including a first end surface relatively close to the anti-detachment cam, and a smooth transition between the first end surface and the force release surface.

9. An anti-detachment connection assembly as described in claim 8, wherein the anti-detachment connection member includes a cylinder, the first threaded portion is provided on one end of the cylinder, the anti-detachment cam is provided on the other end of the cylinder away from the first threaded portion, and the base is connected to the side of the anti-detachment cam that deviates from the first threaded portion.

10. 3. The anti-detachment connection assembly according to claim 2, wherein the number of the anti-detachment cams is multiple, the multiple anti-detachment cams are distributed along the circumferential direction of the anti-detachment connection member, and the force receiving surface and the force releasing surface are alternately distributed along the circumferential direction of the anti-detachment connection member.

11. The anti-detachment connection assembly according to claim 10 , wherein the anti-detachment cam includes a first protrusion and a second protrusion that are rotationally symmetrical about an axis of the anti-detachment connection member.

12. The anti-detachment connection assembly of claim 11 , wherein the maximum outer diameter of the anti-detachment cam is the maximum diameter of the anti-detachment connecting member.

13. The anti-detachment connection assembly according to claim 12 , wherein the force-receiving intersection line of the first protrusion and the force-receiving intersection line of the second protrusion together define a maximum value of the outer diameter of the anti-detachment connection member.

14. 14. An air conditioning apparatus comprising a first tube, a second tube, and the anti-detachment connection assembly according to claim 1, wherein the first tube and the second tube are connected to the anti-detachment connection member and the fixing member, respectively.

15. The air conditioning equipment according to claim 14 , wherein the first pipe is fixed to the anti-detachment connecting member, and one end of the second pipe is clamped and fixed between the anti-detachment connecting member and the fixing member.

16. The air conditioning equipment described in claim 15, wherein a first tapered surface is provided on an outer wall of the end of the anti-detachment connecting member, and a second tapered surface is provided in an assembly hole of the fixing member corresponding to the first tapered surface, and a conical clamp portion is provided on one end of the second pipe body, and the conical clamp portion is clamped and fixed between the first tapered surface and the second tapered surface.

17. The air conditioning equipment according to claim 14, wherein the anti-detachment connecting member or the fixing member is provided with a positioning segment, and the positioning segment abuts against the first pipe body or the second pipe body to position the first pipe body or the second pipe body.

18. The air conditioning equipment according to claim 17, wherein the positioning segment is provided with a cone-shaped positioning surface, and a flare portion is provided at an end of the first pipe or the second pipe, and the cone-shaped positioning surface abuts against an outer wall of the flare portion.

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