Anti-disassembly cap, pipeline connection anti-disassembly device and air conditioner

Abstract

The utility model discloses an anti-disassembly cap, a pipeline connection anti-disassembly device and an air conditioner. The anti-disassembly cap comprises a main body piece and a limiting piece. The main body piece is provided with a containing cavity used for containing the nut. At least part of the structure of the limiting piece extends into the containing cavity, and the limiting piece has a first state and a second state. In the first state, a first distance is formed between the limiting piece and the center line of the main body piece. And in the second state, a second distance is formed between the limiting piece and the center line of the main body piece. The first spacing is not equal to the second spacing. The nut is contained in the containing cavity of the main body piece, the main body piece can be arranged to be of a structure which is not easy to disassemble, and therefore the nut is not easy to directly or indirectly disassemble through a disassembling tool, and disassembly prevention of the nut is achieved. The distance between the limiting piece and the center line of the main body piece is controlled to be different by arranging the limiting piece with the first state and the second state, so that the anti-disassembly cap can be matched with nuts with different sizes, the universality of the anti-disassembly cap is improved, and the production cost is reduced.

Description

Technical Field

[0001] The present application relates to the field of air conditioning, and in particular to an anti-disassembly cap, a pipeline connection anti-disassembly device and an air conditioner. Background Art

[0002] The air conditioner anti-tampering cap is a protective structure that is installed on the nut of the exposed refrigerant pipe joint of the air conditioner to reduce the probability of dangerous substances flowing out of the refrigerant pipe due to human error and removal of the nut at the refrigerant pipe joint. In the related art, one anti-tampering cap can only be used for nuts of one specification, resulting in a variety of anti-tampering caps, poor applicability, and high production and control costs. Utility Model Content

[0003] In view of this, the embodiments of the present application provide an anti-dismantling cap, a pipeline connection anti-dismantling device and an air conditioner, which are used to improve the applicability of the anti-dismantling cap to nuts of different specifications and reduce the production and control costs of the anti-dismantling cap.

[0004] A first aspect of an embodiment of the present application provides an anti-tampering cap, comprising:

[0005] A main body, wherein the main body is provided with a receiving cavity, and the receiving cavity is used to receive the nut;

[0006] A limiting member, at least a portion of the limiting member extends into the accommodating cavity, and the limiting member has a first state and a second state;

[0007] In the first state, there is a first distance between the limit member and the center line of the main body; in the second state, there is a second distance between the limit member and the center line of the main body; the first distance is not equal to the second distance.

[0008] In some embodiments, the limiting member can undergo elastic deformation under the action of an external force and move in a direction away from the accommodating cavity, switching from the first state to the second state.

[0009] In some embodiments, the main body includes a locking member, a first shell and a second shell, and the main body includes an open state and a closed state. In the closed state, the first shell and the second shell define the accommodating cavity and are connected by the locking member.

[0010] In some embodiments, the locking member is a disassembly-proof structure.

[0011] In some embodiments, the anti-disassembly structure includes a slot and two buckles, the free end of the buckle is provided with a protrusion, and the two buckles are engaged with the slot; the plane perpendicular to the height direction of the anti-disassembly cap is defined as a first plane, and the two buckles are symmetrically arranged about the first plane.

[0012] In some embodiments, a difference between the first spacing and the second spacing is greater than 0 mm and less than or equal to 2.5 mm.

[0013] In some embodiments, the main body includes a limiting rib, which is located in the accommodating cavity and is used to limit the nut in the height direction.

[0014] In some embodiments, the main body includes a connecting rib, and two ends of the connecting rib are respectively connected to the first shell and the second shell.

[0015] A second aspect of an embodiment of the present application provides a pipeline connection anti-disassembly device, which includes a nut, a pipeline and the above-mentioned anti-disassembly cap, the nut is connected to the pipeline, and the anti-disassembly cap is at least sleeved on the nut.

[0016] A third aspect of an embodiment of the present application provides an air conditioner, comprising the above-mentioned pipeline connection anti-disassembly device.

[0017] The anti-disassembly cap, pipeline connection anti-disassembly device and air conditioner provided in the embodiments of the present application can realize the anti-disassembly of the nut by accommodating the nut in the accommodating cavity of the main body, so that the main body can be set to a structure that is not easy to disassemble, so that it is not easy for the disassembly tool to directly or indirectly disassemble the nut. In addition, the anti-disassembly cap is provided with a limiter, and at least part of the structure of the limiter extends into the accommodating cavity, which is used to cooperate with the nut to achieve connection with the nut, and the limiter has at least a first state and a second state, and the spacing between the limiter and the center line of the main body is different in the first state and the second state, so that it can cooperate with nuts of different sizes, thereby improving the versatility of the anti-disassembly cap and reducing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the pipeline connection anti-disassembly device according to an embodiment of the present application;

[0019] Figure 2 It is a schematic structural diagram of the main body of the anti-tamper cap in the embodiment of the present application in a closed state;

[0020] Figure 3 It is a schematic structural diagram of the main body of the anti-tamper cap in an embodiment of the present application in an open state;

[0021] Figure 4 A cross-sectional view of an anti-tamper cap according to an embodiment of the present application;

[0022] Figure 5 A schematic diagram of the cooperation between the anti-tamper cap and the nut according to an embodiment of the present application;

[0023] Figure 6 It is a schematic structural diagram of the anti-dismantling structure of an embodiment of the present application.

[0024] Description of Reference Numerals

[0025] 100. Pipeline connection anti-disassembly device;

[0026] 10. Anti-tamper cap; 20. Nut; 30. Pipe;

[0027] 1. Main body; 1a. Accommodating cavity; 11. First shell; 12. Second shell; 13. Locking member; 131. Anti-disassembly structure; 1311. Card slot; 131a. Concave area; 131b. Guide surface; 1312. Buckle; 1312a. Protruding part; 14. Connecting rib; 15. Limiting rib;

[0028] 2. Limiting member; 21. Elastic portion; 22. Limiting portion. DETAILED DESCRIPTION

[0029] It should be noted that, in the absence of conflict, the embodiments and technical features in the embodiments of the present application can be combined with each other, and the detailed description in the specific implementation method should be understood as an explanation of the purpose of the present application and should not be regarded as an improper limitation on the present application.

[0030] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship indicated by the terms "height direction", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings. These orientation terms are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. The present application is further described in detail below in conjunction with the drawings and specific embodiments.

[0031] In the air conditioner, the refrigerant achieves indoor cooling through a simple physical change, absorbing heat by vaporizing indoors and releasing heat by condensing outdoors. The refrigerant is transferred indoors and outdoors through the pipe system. Since the refrigerant is harmful to the human body, the pipe system in the air conditioner, especially the joints of the pipe system, needs to be treated with anti-disassembly to prevent human errors by non-professionals, which may cause the joints to be disassembled, resulting in refrigerant leakage and personal injury.

[0032] The embodiment of the present application provides an air conditioner, which includes a pipeline connection anti-disassembly device 100, which performs anti-disassembly processing on the pipeline system to prevent human error from disassembling the pipeline 30, causing refrigerant leakage and causing personal injury.

[0033] Generally, the piping system of the air conditioner is generally connected by nuts 20. Here, the anti-disassembly treatment of the piping system generally refers to the anti-disassembly treatment of the nuts 20 to prevent non-professionals from mistakenly disassembling the nuts 20 and causing personal injury.

[0034] The present application embodiment provides a pipeline connection anti-disassembly device 100, see Figure 1 The pipeline connection anti-disassembly device 100 includes a nut 20, a pipeline 30 and an anti-disassembly cap 10, the nut 20 is connected to the pipeline 30, and the anti-disassembly cap 10 is at least sleeved on the nut 20.

[0035] The specific type of the nut 20 is not limited here and is determined according to the use environment. For example, it can be an external hexagonal nut or a plum nut, etc.

[0036] The specific size of the nut 20 is not limited here, and is determined according to the size of the pipeline 30.

[0037] The size and material of the pipeline 30 are determined according to the air conditioning design performance index and are not limited here. For example, it can be copper or aluminum.

[0038] Here, the anti-disassembly cap 10 is at least sleeved on the nut 20, which means that the anti-disassembly nut 20 at least provides anti-disassembly protection for the nut 20. Of course, the anti-disassembly cap 10 can also be sleeved on the nut 20 and the pipeline 30 to protect the part of the pipeline 30 connected to the nut 20.

[0039] In some embodiments, see Figure 1 The anti-disassembly cap 10 is sleeved on the nut 20, and the anti-disassembly cap 10 extends to both ends of the nut 20 in the axial direction to cover part of the pipeline 30. The anti-scratch cap is provided with avoidance areas at both ends of the nut 20 in the axial direction to avoid the pipeline 30 passing through.

[0040] The specific structure of the anti-tamper cap 10 is determined according to the structures of the nut 20 and the pipe 30 . The structure of the anti-tamper cap 10 in the embodiment of the present application is described in detail below.

[0041] The present application embodiment provides a tamper-proof cap 10, see Figures 2 to 5 The anti-disassembly cap 10 includes a main body 1 and a stopper 2. The main body 1 is provided with a receiving cavity 1a, and the receiving cavity 1a is used to receive the nut 20. At least part of the structure of the stopper 2 extends into the receiving cavity 1a, and the stopper 2 has a first state and a second state. In the first state, there is a first spacing between the stopper 2 and the center line of the main body 1. In the second state, there is a second spacing between the stopper 2 and the center line of the main body 1. The first spacing is not equal to the second spacing.

[0042] The main body 1 is a structure that is sleeved outside the nut 20. Generally speaking, the external shape of the main body 1 is different from the external shape of the nut 20, so that the special tool for removing the nut 20 cannot be directly sleeved on the nut 20 to remove the nut 20, nor can it be sleeved on the main body 1 to remove the nut 20, which plays a role in protecting the nut 20. The external shape of the main body 1 is not limited here, as long as it is a shape that is not easy to be removed with the tool.

[0043] In some embodiments, the exterior of the main body 1 is a smooth cylindrical shape, which cannot be adapted to most disassembly and assembly tools, such as adjustable wrenches, etc. Thus, most disassembly and assembly tools cannot indirectly remove the nut 20 by applying force on the main body 1 .

[0044] The material of the main body 1 needs to be easy to form, have excellent wear resistance, self-lubricating properties, chemical stability and solvent resistance, and have good mechanical properties and gas barrier properties. At the same time, it needs good fatigue resistance. For example, it can be polyhexamethylene adipamide (commonly known as PA66).

[0045] The accommodating chamber 1a is a structure for accommodating the nut 20, so that the nut 20 is sleeved in the accommodating chamber 1a and is not easily exposed from the main body 1 under the action of external force. The specific structure of the accommodating chamber 1a is not limited here and is specifically determined according to the structure of the nut 20.

[0046] In some embodiments, the accommodating cavity 1a corresponds to the shape and structure of the nut 20. For example, the nut 20 is an external hexagonal nut, and the accommodating cavity 1a is configured to be a hexagonal prism corresponding to the nut 20, so that the nut 20 is sleeved in the accommodating cavity 1a. In this way, the nut 20 is restricted from moving relative to the main body 1 in the radial direction of the main body 1.

[0047] In some embodiments, the accommodating chamber 1a may not correspond to the shape and structure of the nut 20, and the nut 20 may freely move relative to the main body 1 along the radial direction of the main body 1. For example, the nut 20 is an external hexagonal nut, and the accommodating chamber 1a is set to a cylindrical shape larger than the outer dimensions of the nut 20. In this way, the force acting on the main body 1 cannot be transmitted to the nut 20, and the nut 20 can also be protected from disassembly. In this case, since the main body 1 cannot transmit the force to the nut 20, the external shape of the main body 1 is no longer restricted.

[0048] Here, it should be noted that no matter whether the accommodating cavity 1a corresponds to the shape and structure of the nut 20 or the accommodating cavity 1a does not correspond to the shape and structure of the nut 20, and whether the main body 1 can undergo relative displacement with the nut 20, the main body 1 needs to be sleeved on the nut 20 to prevent the tool from cooperating with the external shape of the nut 20 for disassembly.

[0049] The stopper 2 is a structure extending into the accommodating cavity 1a. The stopper 2 changes the size of the accommodating space of the accommodating cavity 1a by changing the distance from the center line of the main body 1. The accommodating space here refers to the maximum space in the accommodating cavity 1a that can be used to accommodate the nut 20 without interference from the stopper 2. The more the structure of the stopper 2 extends into the accommodating cavity 1a and the closer the distance from the center line of the main body 1 is, the smaller the accommodating space is.

[0050] The specific structure of the limiting member 2 is not limited here. It only needs to be able to adjust the distance from the center line of the main body 1 and change the size of the structure extending into the accommodating cavity 1a.

[0051] The limiting member 2 may be a structure integrally formed with the main member 1 , or may be two parts independent of the main member 1 , which is not limited here.

[0052] In some embodiments, the limit member 2 can be an adjustment screw arranged on the side wall of the main body 1 and extending into the accommodating cavity 1a. The limit member 2 is threadedly connected to the main body 1. The size of the accommodating space can be changed by changing the structural size of the limit member 2 screwed into the accommodating cavity 1a.

[0053] The first state and the second state refer to the states of the limiter 2 when the two extreme distances between the limiter 2 and the center line of the main body 1 are. For example, the first state may be the state of the limiter 2 when the first distance is the minimum distance, and the second state may be the state of the limiter 2 when the second distance is the maximum distance. Of course, the first state may also be the state of the limiter 2 when the first distance is the maximum distance, and the second state may be the state of the limiter 2 when the second distance is the minimum distance. It is understandable that within the range of the first state and the second state, the limiter 2 also has a variety of different intermediate states, which will not be described here.

[0054] The anti-disassembly cap 10 provided in the embodiment of the present application can be configured as a structure that is not easy to disassemble by accommodating the nut 20 in the accommodating cavity 1a of the main body 1, so that it is not easy for a disassembly tool to directly or indirectly disassemble the nut 20, thereby realizing the anti-disassembly of the nut 20. In addition, the anti-disassembly cap 10 is provided with a limiter 2, at least part of the structure of the limiter 2 extends into the accommodating cavity 1a, and is used to cooperate with the nut 20 to achieve connection with the nut 20, and the limiter 2 has at least a first state and a second state, and the distance between the limiter 2 and the center line of the main body 1 is different in the first state and the second state, so that it can cooperate with nuts 20 of different sizes, thereby improving the versatility of the anti-disassembly cap 10 and reducing the production cost.

[0055] In some embodiments, see Figures 2 to 5 The limiting member 2 can be elastically deformed under the action of external force and move in a direction away from the accommodating chamber 1a, switching from the first state to the second state.

[0056] The first state here refers to the state of the limiter 2 when there is no external force and no elastic deformation. The second state here refers to the maximum distance that the limiter 2 can move away from the accommodating cavity 1a under the action of external force, that is, the maximum value that the second spacing can reach.

[0057] It can be understood that, in the first state, the limiter 2 extends into the accommodating chamber 1a with the largest structural volume, and the nut 20 that can be accommodated in the accommodating chamber 1a is the smallest nut 20 size that can be matched with the anti-tamper cap 10. Similarly, in the second state, the limiter 2 extends into the accommodating chamber 1a with the smallest structural volume, and the nut 20 that can be accommodated in the accommodating chamber 1a is the largest nut 20 size that can be matched with the anti-tamper cap 10.

[0058] Here, it should be noted that the nut 20 size between the minimum nut 20 size and the maximum nut 20 size can also be used in conjunction with the tamper-evident cap 10 .

[0059] The implementation method of enabling the limiter 2 to undergo elastic deformation is not limited herein. For example, the limiter 2 may be made of an elastic material, or the limiter 2 may be elastically deformed by an elastic structure.

[0060] The setting position of the limiting member 2 is not limited here, as long as the limiting member 2 can be away from the accommodating cavity 1a when the limiting member 2 undergoes elastic deformation.

[0061] For example, see Figures 2 to 5 The main body 1 of the anti-tamper cap 10 is provided with a plurality of limiters 2 along the circumference of the cylindrical surface. The limiters 2 are made of a material with a certain elasticity. The limiters 2 include an elastic portion 21 and a limiter 22. The elastic portion 21 is connected to the main body 1. The limiter 22 connected to the free end of the elastic portion 21 partially extends into the accommodating cavity 1a. When the nut 20 extends into the accommodating cavity 1a, the nut 20 abuts against the limiter 22, pushing the limiter 22 to move away from the accommodating cavity 1a. The elastic portion 21 generates elastic deformation, and an extrusion force is applied to the nut 20 through the limiter 22 to fix and limit the radial movement of the nut 20 in the main body 1, thereby fixing the position of the nut 20.

[0062] By setting the limit member 2 as a structure that can undergo elastic deformation, the state of the limit member 2 when it does not undergo elastic deformation is set to the first state, and the state of the limit member 2 when it reaches elastic deformation is set to the second state, so as to correspond to the minimum size nut 20 and the maximum size nut 20 that the anti-dismantling cap 10 can cooperate with. After the limit member 2 undergoes elastic deformation, it reacts on the nut 20, clamps the nut 20, and fixes the position of the nut 20, so that the anti-dismantling cap 10 can adjust the size of the accommodating space in the accommodating cavity 1a within a certain range, and cooperate with the nut 20 within a certain size range, thereby increasing the application scope of the anti-dismantling cap 10, simplifying the structure, and saving production and use costs.

[0063] In some embodiments, see Figures 2 to 5The main body 1 includes a locking member 13, a first shell 11 and a second shell 12. The main body 1 includes an open state and a closed state. In the closed state, the first shell 11 and the second shell 12 define a accommodating cavity 1a and are connected by the locking member 13.

[0064] The specific structure of the first shell 11 and the second shell 12 is not limited here. It only needs to form a receiving cavity 1a in the closed state to wrap and fit the nut 20.

[0065] Generally, the first shell 11 and the second shell 12 are cylindrical bodies cut along the central axis, and the first shell 11 and the second shell 12 are arranged in an open position, and the opening position is not limited here. For example, they can be arranged in an open position along the side of the cylinder, so that when the nut 20 and the pipe 30 have been installed, the nut 20 can be easily matched from the side of the pipe 30. Of course, they can also be arranged in an open position along the bottom surface of the cylinder.

[0066] The open state here refers to the state in which the first shell 11 and the second shell 12 are separated, and the first shell 11 and the second shell 12 have not yet cooperated to form the accommodating cavity 1a. In this state, the nut 20 can be conveniently pre-matched with the corresponding position of the first shell 11 or the second shell 12. When the first shell 11 and the second shell 12 are in the closed state, the accommodating cavity 1a is formed, and the nut 20 can be accommodated in the corresponding position of the accommodating cavity 1a.

[0067] The locking member 13 is a structure for fixing the first housing 11 and the second housing 12 in a closed state, so as to maintain a relatively fixed position, maintain the shape of the accommodating cavity 1a, and prevent the nut 20 from falling out of the anti-tamper cap 10. The specific structure of the locking member 13 is not limited here, and any structure that is convenient for locking and has a firm connection is acceptable.

[0068] By setting the main body 1 as the first shell 11 and the second shell 12, the first shell 11 and the second shell 12 are controlled to form the accommodating chamber 1a, the accommodating chamber 1a is set to an open state when the accommodating chamber 1a is not formed, which is convenient for pre-installation of the nut 20, and the accommodating chamber 1a is set to a closed state when the accommodating chamber 1a is formed, and the nut 20 is restricted in the anti-tampering cap 10 through the locking member 13. In this way, the installation of the nut 20 is convenient and the installation efficiency is improved.

[0069] In some embodiments, see Figures 2 to 6 The locking member 13 is an anti-disassembly structure 131 .

[0070] The locking member 13 is a disassembly-proof structure 131, which means that the locking member 13 not only connects and fixes the first shell 11 and the second shell 12, but also has an anti-disassembly function. The anti-disassembly function here can be that after the locking member 13 is locked, it cannot be disassembled by normal means and methods except by destroying the structure of the locking member 13 itself. It can also be that the locking member 13 is very difficult to disassemble, and non-professionals who do not understand the locking member 13 cannot easily open the locking member 13.

[0071] Here, it should be noted that the anti-disassembly structure 131 is only difficult to open after installation, and the complexity of the installation process of the anti-disassembly structure 131 is not limited here. Generally speaking, in order to increase the installation speed of the anti-disassembly cap 10, the anti-disassembly structure 131 is usually set as a quick installation structure to improve the installation efficiency of the anti-disassembly cap 10.

[0072] The specific structure of the anti-dismantling structure 131 is not limited here, and any structure that cannot be normally disassembled after installation or is difficult for non-professionals to disassemble may be used.

[0073] By setting the locking piece 13 to a structure that cannot be normally disassembled after installation or is difficult for non-professionals to disassemble, the difficulty of disassembly of the anti-dismantling cap 10 is increased, and it is prevented that the nut 20 protected by the anti-dismantling cap 10 is easily loosened after the anti-dismantling cap 10 is opened due to mistake during installation, causing the refrigerant leakage problem, thereby protecting personnel safety.

[0074] In some embodiments, see Figures 2 to 6 The anti-disassembly structure 131 includes a slot 1311 and two buckles 1312. The free end of the buckle 1312 is provided with a protrusion 1312a. The two buckles 1312 are engaged with the slot 1311. A plane perpendicular to the height direction of the anti-disassembly cap 10 is defined as a first plane. The two buckles 1312 are symmetrically arranged about the first plane.

[0075] The protrusion 1312a is a structure on the buckle 1312 that cooperates with the slot 1311 to limit the movement of the buckle 1312. The specific structure is not limited here.

[0076] After the protrusion 1312a of the buckle 1312 is matched with the slot 1311, the slot 1311 can prevent the buckle 1312 from escaping from the slot 1311 in the opposite direction of extending into the slot 1311, thereby realizing the anti-disassembly function. The specific structure of the buckle 1312 and the slot 1311 is not limited here, and it is only necessary to realize the above-mentioned anti-disassembly function.

[0077] Since the buckle 1312 is not completely fixed after being engaged with the slot 1311, there will be a side of the buckle 1312 in a certain direction that is not restricted by the slot 1311. By defining the two buckles 1312 symmetrically arranged on the plane perpendicular to the height direction as the first plane, the two buckles 1312 are connected as one body, and both sides in the height direction can be restricted by the slot 1311, which can improve the restriction effect of the slot 1311 on the buckle 1312 in the height direction, and prevent the buckle 1312 from falling out of the slot 1311 in the height direction, causing the nut 20 to fall out of the anti-tamper cap 10.

[0078] In some embodiments, see Figure 6 The slot 1311 includes a guide surface 131b extending to the recessed area 131a, and the buckle 1312 can be elastically deformed under the action of an external force. When the buckle 1312 extends into the slot 1311, the protrusion 1312a abuts against the guide surface 131b, guiding the protrusion 1312a to move to the recessed area 131a, while the guide surface 131b pushes the protrusion 1312a away from the recessed area 131a, and the buckle 1312 elastically deforms. When the protrusion 1312a moves to the recessed area 131a, the buckle 1312 restores its elastic deformation, driving the protrusion 1312a to extend into the recessed area 131a.

[0079] By providing the buckle 1312 and the slot 1311, the installation of the anti-tamper cap 10 is facilitated and the installation efficiency is improved. By providing two symmetrical buckles 1312, the structural stability of the anti-tamper cap 10 in the height direction is improved, the structure is simple, and the production cost is reduced.

[0080] In some embodiments, see Figures 2 to 5 , the difference between the first spacing and the second spacing is greater than 0 mm and less than or equal to 2.5 mm.

[0081] The difference here refers to the value obtained by subtracting the smaller spacing between the larger spacing and the second spacing, for example, it can be 0.5mm, 0.7mm, 1mm, 1.3mm, 1.5mm, 1.7mm, 2mm, 2.1mm, 2.3mm and 2.5mm, etc.

[0082] It can be understood that the difference range between the first spacing and the second spacing, that is, the adjustable distance between the limit member 2 and the center line of the main body 1, further determines the size range of the nut 20 that the anti-dismantling cap 10 can cooperate with. The larger the difference, the larger the size range of the nut 20 that the anti-dismantling cap 10 can cooperate with.

[0083] It should be noted that the range here is only the adjustable range of a single limit member 2. For multiple limit members 2 relatively arranged along the central axis of the main body 1, the size range of the nut 20 that the anti-dismantling cap 10 can be matched with can be doubled accordingly.

[0084] It should be noted that the size of the difference does not determine the size of the nut 20 that the tamper-proof cap 10 can fit. The size of the nut 20 that the tamper-proof cap 10 can fit is determined by the size of the accommodating cavity 1a and the size of the difference. Based on the size of the accommodating cavity 1a, the difference determines the adjustable size range between the maximum size nut 20 and the minimum size nut 20 that the accommodating cavity 1a can accommodate.

[0085] Exemplarily, the tamper-proof cap 10 can be matched with a nut 20 of 5 / 8 inch to 3 / 4 inch.

[0086] By setting the difference between the first spacing and the second spacing to be greater than 0mm and less than or equal to 2.5mm, the anti-dismantling cap 10 can be adjusted within a certain range, which can cover the sizes of nuts 20 commonly used in most air conditioner pipes, thereby increasing the use range of the anti-dismantling cap 10 and reducing the cost of using the anti-dismantling cap 10 for the air conditioner.

[0087] In some embodiments, see Figures 2 to 5 The main body includes a limiting rib 15, which is located in the accommodating cavity 1a and is used to limit the nut 20 in the height direction.

[0088] The limiting rib 15 is located in the accommodating cavity 1 a and is used to limit the nut 20 in the height direction to prevent the nut 20 from falling off the anti-tamper cap 10 in the axial direction.

[0089] The specific structure of the limiting rib 15 is not limited here. The limiting rib 15 only needs to limit the nut 20 in the height direction without hindering the nut 20 from cooperating with the accommodating cavity 1a. For example, the limiting rib 15 can be a protruding structure extending from the accommodating cavity 1a, which abuts against the bottom of the nut 20 to limit the nut 20.

[0090] The location of the limiting rib 15 is not limited here, and is specifically determined according to the size of the nut 20 designed to accommodate it.

[0091] In some embodiments, see Figures 2 to 5 The limiting rib 15 is a triangular sheet structure arranged in the accommodating cavity 1a. A limiting rib 15 is respectively arranged on the first shell 11 and the second shell 12 to jointly limit the nut 20 in the height direction.

[0092] By setting the limiting rib 15, the nut 20 is limited in the height direction. The limiting rib 15 cooperates with the accommodating cavity 1a. The limiting rib 15 limits the nut 20 in the axial direction of the anti-dismantling cap 10, and the accommodating cavity 1a limits the nut 20 in the radial direction of the anti-dismantling cap 10. In this way, the nut 20 can be confined in the anti-dismantling cap 10 to prevent the nut 20 from falling out of the anti-dismantling cap 10, and the structure is simple.

[0093] In some embodiments, see Figures 2 to 5 The main body 1 includes a connecting rib 14, and two ends of the connecting rib 14 are respectively connected to the first shell 11 and the second shell 12.

[0094] The connecting rib 14 connects the first shell 11 and the second shell 12 at two ends, so that the first shell 11 and the second shell 12 are integrated in an open state.

[0095] The connecting rib 14 may be a structure integrally formed with the first shell 11 and the second shell 12. In this way, the first shell 11 and the second shell 12 may be formed on one mold, thereby reducing the number of molds required for production, reducing production costs, and improving production efficiency. Of course, the connecting rib 14 may also be an independent part, and the two ends of the connecting rib 14 are respectively connected to the first shell 11 and the second shell 12 through a connecting structure, for example, the connecting structure may be a buckle 1312 structure, etc., which is not limited here.

[0096] The size of the connecting rib 14 affects the smooth opening and closing of the first shell 11 and the second shell 12 and the durability of the connecting rib 14 .

[0097] In some embodiments, the connecting rib 14 is integrally formed with the first shell 11 and the second shell 12 and is a rectangular thin sheet structure. The width of the connecting rib 14 is greater than or equal to 5 mm and less than or equal to 7 mm, for example, it can be 5 mm, 5.5 mm, 6 mm, 6.5 mm and 7 mm, etc. The width here is the distance from the connecting rib 14 to the two ends of the first shell 11 and the second shell 12.

[0098] The thickness of the connecting rib 14 is greater than or equal to 0.9 mm and less than or equal to 1.2 mm, for example, it can be 0.9 mm, 1 mm, 1.1 mm, 1.2 mm, etc.

[0099] The width and thickness of the connecting rib 14 set within this range can make the first housing 11 and the second housing 12 open and close smoothly and the durability can meet the use requirements. At the same time, the connecting rib 14 can also cooperate with the locking member 13 to limit the first housing 11 and the second housing 12 to reduce the possibility of the nut 20 falling off from the anti-tamper cap 10.

[0100] Here, it should be noted that the length and number of the connecting ribs 14 are not limited here, and are specifically determined according to the sizes of the first shell 11 and the second shell 12 .

[0101] By providing the connecting rib 14 between the first shell 11 and the second shell 12, the first shell 11 and the second shell 12 remain as a whole in the opened state, reducing the number of scattered parts of the anti-tamper cap 10, which is beneficial to the storage and management of the anti-tamper cap 10. When the connecting rib 14 and the first shell 11 and the second shell 12 are an integrally formed structure, the first shell 11 and the second shell 12 can be formed on one mold, reducing the number of molds required for production, reducing production costs, and improving production efficiency.

[0102] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims

1. A tamper-proof cap, characterized in that: include: A main body, wherein the main body is provided with a receiving cavity, and the receiving cavity is used to receive the nut; A limiting member, at least a portion of the limiting member extends into the accommodating cavity, and the limiting member has a first state and a second state; In the first state, there is a first distance between the limit member and the center line of the main body; in the second state, there is a second distance between the limit member and the center line of the main body; the first distance is not equal to the second distance.

2. The tamper-proof cap according to claim 1, characterized in that: The limiting member can be elastically deformed under the action of an external force and move in a direction away from the accommodating cavity, switching from the first state to the second state.

3. The tamper-proof cap according to claim 1, characterized in that: The main body includes a locking member, a first shell and a second shell. The main body includes an open state and a closed state. In the closed state, the first shell and the second shell define the accommodating cavity and are connected by the locking member.

4. The tamper-proof cap according to claim 3, characterized in that: The locking piece is a disassembly-proof structure.

5. The tamper-proof cap according to claim 4, characterized in that: The anti-disassembly structure includes a slot and two buckles, the free end of the buckle is provided with a protrusion, and the two buckles are engaged with the slot; the plane perpendicular to the height direction of the anti-disassembly cap is defined as the first plane, and the two buckles are symmetrically arranged about the first plane.

6. The tamper-proof cap according to claim 3, characterized in that: A difference between the first spacing and the second spacing is greater than 0 mm and less than or equal to 2.5 mm.

7. The tamper-proof cap according to claim 3, characterized in that: The main body comprises a limiting rib, and the limiting rib is located in the accommodating cavity and is used to limit the nut in the height direction.

8. The tamper-proof cap according to claim 3, characterized in that: The main body comprises a connecting rib, and two ends of the connecting rib are respectively connected to the first shell and the second shell.

9. A pipeline connection anti-disassembly device, characterized in that: The pipeline connection anti-disassembly device comprises a nut, a pipeline and the anti-disassembly cap according to any one of claims 1 to 8, the nut is connected to the pipeline, and the anti-disassembly cap is at least sleeved on the nut.

10. An air conditioner, characterized in that: It includes the pipeline connection anti-disassembly device as claimed in claim 9.

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