CN211738304U - Anti-dismantling nut assembly and air conditioning system - Google Patents
Anti-dismantling nut assembly and air conditioning system Download PDFInfo
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- CN211738304U CN211738304U CN201922153440.1U CN201922153440U CN211738304U CN 211738304 U CN211738304 U CN 211738304U CN 201922153440 U CN201922153440 U CN 201922153440U CN 211738304 U CN211738304 U CN 211738304U
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- coupling
- tamper
- pipe joint
- takeover
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Abstract
The utility model relates to a prevent tearing open nut assembly and air conditioning system for fixed first takeover and second takeover, prevent tearing open nut assembly and include coupling, coupling nut and prevent tearing open the nut, coupling nut one end is fixed in first takeover, the coupling is pegged graft and is had second takeover and reciprocal anchorage, the coupling wear to establish and threaded connection in coupling nut's the other end, prevent tearing open the nut cover and establish coupling and threaded connection in the coupling is kept away from relatively the one end of first takeover. The nut assembly is matched with the pipe joint and the connecting nut through the anti-disassembly nut, so that the anti-disassembly effect of the connecting nut and the pipe joint is realized, and the anti-disassembly connection of the first connecting pipe and the second connecting pipe is further realized.
Description
Technical Field
The utility model relates to a refrigeration plant field especially relates to a prevent tearing open nut component and air conditioning system.
Background
In the structure for connecting the connecting pipe used by the indoor unit of the air-conditioning system of the flammable refrigerant at present, the connecting pipe joint and the connecting pipe are fastened through the connecting nut, one end of the connecting pipe is installed in the connecting nut, and during installation, locking torque is applied to the connecting nut, so that the connecting nut rotates to be tightly connected with the pipe joint, the connecting pipe and the pipe joint are locked, on the contrary, if the connecting nut rotates reversely, the connecting pipe and the pipe joint can be detached, and the installation requirement of the indoor unit of the flammable refrigerant air-conditioning system cannot be met.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is desirable to provide a tamper nut assembly that addresses the above-mentioned problems. This nut component is through setting up the cooperation between anti-disassembly nut and coupling and the coupling nut to realize the effect of the anti-disassembly of coupling nut and coupling, and further realize that the anti-disassembly of first takeover and second takeover is connected, should prevent tearing open the nut component and be applied to air conditioning system's indoor set, thereby avoid the potential safety hazard of air conditioning system's indoor set side.
The utility model provides an anti-disassembly nut assembly for fixed first takeover and second takeover, anti-disassembly nut assembly includes coupling, coupling nut and anti-disassembly nut, coupling nut one end is fixed in first takeover, the coupling is pegged graft and is had the second takeover and reciprocal anchorage, the coupling wear to establish and threaded connection in coupling nut's the other end, anti-disassembly nut cover establish coupling and threaded connection in the coupling is kept away from relatively the one end of first takeover.
Further, a first thread section which is in threaded connection with the connecting nut is formed at one end, close to the first connecting pipe, of the pipe joint, a second thread section which is in threaded connection with the anti-dismounting nut is formed at one end, far away from the first connecting pipe, of the pipe joint, and the thread turning directions of the first thread and the second thread are the same.
Furthermore, a stop portion is formed between the first thread section and the second thread section in a radially extending mode, and the stop portion abuts against the anti-dismounting nut.
Further, the screwing length of the anti-dismounting nut and the pipe joint thread is smaller than that of the connecting nut and the pipe joint thread.
Further, the coupling nut includes a mounting portion having a non-circular outer surface.
Further, the anti-dismounting nut is an outer hexagonal nut.
Further, the threads on the inner side of the tamper nut extend to both ends of the tamper nut.
Further, the threads on the inside of the tamper nut extend only to one end of the tamper nut.
The utility model also provides an air conditioning system, take over and prevent tearing open nut component including first takeover, second, prevent tearing open nut component for as above-mentioned arbitrary one prevent tearing open nut component.
Further, the first connecting pipe and the pipe joint are fixed through welding, and the second connecting pipe is abutted and fixed in the connecting nut through the pipe joint.
The utility model provides a pair of prevent tearing open nut assembly should prevent tearing open nut assembly through setting up and prevent tearing open the cooperation between nut and coupling and the coupling nut to realize coupling nut and the effect of the anti-disassembly of coupling, and further realize that the anti-disassembly of first takeover and second takeover is connected, should prevent tearing open nut assembly and be applied to air conditioning system's indoor set, thereby avoid the potential safety hazard of air conditioning system's indoor set side.
Drawings
Fig. 1 is a schematic structural view illustrating a connection between a tamper nut assembly and a first connection pipe and a second connection pipe according to an embodiment of the present invention;
FIG. 2 is a schematic view of the pipe joint in the tamper nut assembly of FIG. 1;
fig. 3 is a schematic sectional view illustrating the detachment prevention nut assembly of fig. 1 connected to the first adapter tube and the second adapter tube.
Description of the main elements
The present invention is described in further detail with reference to the drawings and the detailed description.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram illustrating a connection between an anti-removal nut assembly 100 and a first connection pipe 201 and a second connection pipe 202 according to an embodiment of the present invention; fig. 2 is a schematic structural view of the pipe joint 10 in the tamper nut assembly 100 shown in fig. 1.
The utility model provides a prevent tearing open nut component 100 for install in the air conditioning indoor unit, with prevent that the refrigerant connecting tube is torn open to the people for the mistake.
Of course, the anti-disassembly nut assembly 100 described above can also be used in other devices that require the installation of anti-disassembly structures, such as refrigerators.
At present, because of the wide application of the flammable refrigerant air-conditioning system, the national standard installation requirement of an indoor unit of the air-conditioning system is the non-detachable connection of refrigerant pipelines, so that the potential safety hazard caused by the self-detachment of a user is prevented. In order to further optimize the refrigerant piping system for flammable refrigerant air conditioning systems and to achieve a non-removable connection between the refrigerant pipes, the anti-removal nut assembly 100 further includes an anti-removal nut 30 thereon, such that the pipe joint 10 is non-removably connected to the coupling nut 20.
The tamper nut assembly 100 includes a pipe joint 10, a coupling nut 20, and a tamper nut 30, the pipe joint 10 being adapted to be threadedly coupled to the coupling nut 20 while fixing a first adapter 201 in the coupling nut 20, the coupling nut 20 being adapted to be coupled to the pipe joint 10, the tamper nut 30 being adapted to further secure a connection between the pipe joint 10 and the coupling nut 20 and prevent the detachment thereof.
One end of the connection nut 20 is inserted into the first connection pipe 201, the other end of the connection nut 20 is screwed with the pipe joint 10, and the first connection pipe 201 is abutted to the connection nut 20 through the pipe joint 10. When the pipe joint 10 and the coupling nut 20 are screwed to the maximum extent, the pipe joint 10 abuts against the first connection pipe 201, the anti-disassembly nut 30 is screwed to one end of the pipe joint 10 away from the first connection pipe 201, and the second connection pipe 202 is fixedly inserted into one end of the pipe joint 10 away from the first connection pipe 201.
When the anti-disassembly nut 30 is screwed with the pipe joint 10, a common user of the air conditioner cannot directly disassemble the connection between the pipe joint 10 and the connecting nut 20, so that the purpose of preventing the pipelines of the indoor unit of the air conditioner from being disassembled is achieved.
The pipe joint 10 has a substantially cylindrical shape, and one end of the pipe joint 10, which is away from the first adapter 201, is screwed with the removal prevention nut 30, and the other end is contracted in the radial direction to form the abutting portion 11. The abutment 11 is adapted to abut the first nipple 201 and the threaded section is adapted to be threadedly coupled to the coupling nut 20. The pipe joint 10 forms a first threaded section 12 threadedly coupled to the coupling nut 20 relatively near the outer surface of the first nipple 201, and the first threaded section 12 is relatively near the abutment 11.
The second connection pipe 202 is fixedly inserted into the pipe joint 10, and the specific connection mode can be a fixed connection mode such as welding or riveting, and the sealing performance between the second connection pipe 202 and the pipe joint 10 is ensured.
In addition, the outer side of the pipe joint 10 further includes a section of exposed smooth curved surface (not numbered), so that the pipe joint 10 cannot be directly removed by a user with a common tool after the pipe joint 10 is connected to the anti-removal nut 30 and the coupling nut 20.
Referring to fig. 3, fig. 3 is a cross-sectional view of the anti-tamper nut 30 and the coupling nut 20 of the anti-tamper nut assembly 100 shown in fig. 1.
The coupling nut 20 is substantially cylindrical, and the inner surface of the coupling nut 20 is provided with a thread for coupling the pipe joint 10. The first connecting pipe 201 is used for being inserted into one end of the connecting nut 20 and is provided with an expanded part 2011, the expanded part 2011 is used for preventing the first connecting pipe 201 from being directly pulled out of the connecting nut 20, the connecting nut 20 is correspondingly provided with an accommodating cavity capable of accommodating the first connecting pipe 201, the first connecting pipe 201 is prevented from being separated through the arrangement of a contraction port structure, and the outer surface of the expanded part 2011 is attached to the inner wall of the contraction port. Correspondingly, the contracted shape of the abutting portion 11 of the pipe joint 10 is also provided in correspondence with the flared portion 2011 of the first adapter pipe 201 to ensure that the abutting portion 11 can be brought into close contact and sealed with the first adapter pipe 201.
When the pipe joint 10 is screwed to the bottom end through the first screw thread section 12 and the connection nut 20, the abutting portion 11 of the pipe joint 10 abuts against the inner wall of the flared portion 2011 of the first adapter pipe 201, so that the first adapter pipe 201 is sealingly fixed between the pipe joint 10 and the connection nut 20.
The coupling nut 20 is provided with a mounting portion 21, and the mounting portion 21 is used for a user to screw-couple the coupling nut 20 to the coupling 10 using a tool.
In one embodiment, to facilitate the use of a tool to thread coupling boss 10 into coupling nut 20, mounting portion 21 is generally an outer hexagonal prism.
It will be appreciated that in other embodiments, the shape of the mounting portion 21 may be provided in other non-circular configurations, such as a triangular prism, as long as the facility for screwing the pipe joint 10 into the coupling nut 20 with a tool is achieved.
In one embodiment, the anti-tamper nut 30 is an outer hexagon nut, which is sleeved on an end of the pipe joint 10 relatively far away from the first connecting pipe 201, and correspondingly, the outer surface of the pipe joint 10 relatively far away from the first connecting pipe 201 forms a second threaded section 13 which is in threaded connection with the anti-tamper nut 30.
The nut 30 of preventing tearing open in this embodiment is hexagon nut, so set up, can make the installer rotate when preventing tearing open the nut 30 more convenient and save laborsaving on the one hand, and on the other hand can match with current multiple wrench tool and use, has increased the scope of selecting wrench tool.
In one embodiment, the first thread segments 12 and the second thread segments 13 are threaded in the same direction, i.e., the anti-removal nut 30 is screwed into the pipe joint 10 in the opposite direction to the coupling nut 20. With such an arrangement, the anti-removal nut 30 can drive the pipe joint 10 and the connecting nut 20 to be further screwed while being screwed. Specifically, the threads of the first thread section 12 and the second thread section 13 may be both right-handed threads, and the removal-prevention nut 30 is screwed into the pipe joint 10 in the direction F1, and the connection nut 20 is screwed into the pipe joint 10 in the direction F2.
In one embodiment, the pipe joint 10 extends in a radial direction to form a stop 14, and the stop 14 is located between the first threaded section 12 and the second threaded section 13 for preventing abutment against the tamper nut 30. The anti-disassembly nut 30 is disposed at an end of the pipe joint 10 relatively far away from the first connecting pipe 201, and an inner diameter of the anti-disassembly nut 30 is smaller than an outer diameter of the stopping portion 14, so that an installer can conveniently and directly install and connect the anti-disassembly nut 30 by using a tool.
In one embodiment, when the anti-tamper nut 30 and the pipe joint 10 are screwed to the second thread section 13 and abut against the stop portion 14, the anti-tamper nut 30 is further screwed until the threads of the anti-tamper nut 30 and the threads of the second thread section 13 generate sliding threads, at this time, the anti-tamper nut 30 is difficult to be screwed in or out continuously by a tool, and the connection nut 20 cannot be further screwed or loosened, so that the anti-tamper connection between the anti-tamper nut 30 and the pipe joint 10 can be further ensured.
It is understood that in other embodiments, the anti-detach nut 30 may be a nut having other shapes, such as a pentagonal nut, etc., as long as the purpose of facilitating the connection with the pipe joint 10 is achieved.
In one embodiment, the hardness of the tamper nut 30 is lower than the hardness of the pipe joint 10 and the coupling nut 20, so that the threads on the inside of the tamper nut 30 are damaged when the tamper nut 30 slips off the pipe joint 10, and the threads on the first thread segments 12 on the pipe joint 10 and the coupling nut 20 are not damaged.
In one embodiment, in order to make the thread connection strength between the anti-detach nut 30 and the pipe joint 10 smaller than the thread connection strength between the connection nut 20 and the pipe joint 10, the engagement depth of the screw connection between the connection nut 20 and the pipe joint 10 may be made larger than the engagement depth of the screw connection between the anti-detach nut 30 and the pipe joint 10, and the force with which the pipe joint 10 is screwed into the connection nut 20 is larger than the force with which the anti-detach nut 30 is screwed into the connection nut 20; or the screwing length of the connecting nut 20 and the pipe joint 10 is longer than that of the anti-dismounting nut 30 and the pipe joint 10. With this arrangement, the anti-removal nut 30 is forcibly tightened until it abuts against the stopper portion 14, and the coupling between the coupling nut 20 and the pipe joint 10 is tight but is less likely to cause thread slippage.
In one embodiment, the threads inside the tamper nut 30 penetrate both ends of the tamper nut 30 to make the connection of the tamper nut 30 to the pipe joint 10 stronger.
In one embodiment, the inner thread of the tamper nut 30 only penetrates through one end of the tamper nut 30, so that the machining is convenient and time-saving, and the machining cost is reduced.
The following describes the connection process of the anti-disassembly nut assembly 100 with the first adapter 201 and the second adapter 202 in detail:
as shown in fig. 1 to 3, during installation, one end of the first adapter 201, which is provided with the flared portion 2011, is sleeved into the coupling nut 20 and extends out from one end of the coupling nut 20, the coupling nut 20 is screwed into the first thread section 12 of the pipe joint 10 by using a wrench in the direction F2 to be fixed, then the coupling nut 20 is screwed, the pipe joint 10 abuts against the flared portion 2011 of the first adapter 201, the wall of the flared portion 2011 is clamped between the pipe joint 10 and the coupling nut 20, the anti-disassembly nut 30 is rotated in the screwing direction F1, the anti-disassembly nut 30 drives the pipe joint 10 and the coupling nut 20 to be further screwed, the first adapter 201 is further compressed, after the first adapter 201 is compressed, the anti-disassembly nut 30 is continuously rotated in the locking direction until the anti-disassembly nut 30 abuts against the stopper 14, at this time, because the thread connection strength between the anti-disassembly nut 30 and the pipe joint 10 is smaller than the thread connection strength between the coupling nut 20 and the pipe joint 10, therefore, the anti-removal nut 30 and the pipe joint 10 have a tooth slipping phenomenon, that is, the internal thread of the anti-removal nut 30 cannot be engaged with the thread of the first thread section 12, and at this time, the pipe joint 10 does not rotate no matter the anti-removal nut 30 is rotated in the locking direction or in the loosening direction; moreover, because the periphery of the pipe joint 10 is a smooth curved surface, the pipe joint 10 cannot be rotated by other tools to be loosened, the installation requirement that the pipe joint 10 and the connecting nut 20 are not detachable is met, and the air conditioning system applying the anti-dismounting nut assembly 100 can correspondingly prevent the refrigerant of the indoor unit set of the air conditioning system from being leaked due to manual mistaken dismounting, so that the potential safety hazard caused by the air conditioning system is avoided.
The utility model also provides an air conditioning system (not shown), this air conditioning system include foretell prevent tearing open nut component 100 and connect in preventing tearing open nut component 100 other air conditioning system in necessary spare part, for example compressor, heat exchanger, pipeline etc. to make air conditioning system can normal operating.
The utility model provides a pair of prevent tearing open nut component 100, should prevent tearing open nut component 100 through setting up prevent tearing open the cooperation between nut 30 and coupling 10 and the coupling nut 20 to realize coupling nut 20 and coupling 10's anti-disassembly's effect, and further realize that the anti-disassembly of first takeover 201 and second takeover 202 is connected, should prevent tearing open nut component 100 and be applied to air conditioning system's indoor unit, thereby avoid the potential safety hazard of air conditioning system's indoor machine side.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The utility model provides a prevent tearing open nut assembly for fixed first takeover (201) and second takeover (202), its characterized in that, prevent tearing open nut assembly including coupling (10), coupling nut (20) and prevent tearing open nut (30), coupling nut (20) one end is fixed in first takeover (201), coupling (10) are pegged graft and are equipped with second takeover (202) and reciprocal anchorage, coupling (10) wear to establish and threaded connection in the other end of coupling nut (20), prevent tearing open nut (30) cover locate coupling (10) and threaded connection in coupling (10) keep away from relatively the one end of first takeover (201).
2. The tamper-evident nut assembly according to claim 1, wherein an end of the pipe joint (10) relatively close to the first nipple (201) forms a first threaded section (12) for threaded connection to the coupling nut (20), and an end of the pipe joint (10) relatively far from the first nipple (201) forms a second threaded section (13) for threaded connection to the tamper-evident nut (30), the first and second threads having the same thread direction.
3. The tamper nut assembly of claim 2 wherein a stop (14) extends radially between the first and second threaded sections (12, 13), the stop (14) abutting the tamper nut (30).
4. The tamper nut assembly of claim 1 wherein the length of the threaded engagement of the tamper nut (30) with the tube fitting (10) is less than the length of the threaded engagement of the coupling nut (20) with the tube fitting (10).
5. The tamper nut assembly of claim 1 wherein the coupling nut (20) includes a mounting portion (21) having an outer surface that is non-circular.
6. The tamper nut assembly of claim 1 wherein the tamper nut (30) is an outer hex nut.
7. The tamper nut assembly according to claim 1, characterized in that the thread inside the tamper nut (30) extends to both ends of the tamper nut (30).
8. The tamper nut assembly according to claim 1, characterized in that the thread inside the tamper nut (30) extends only to one end of the tamper nut (30).
9. An air conditioning system comprising a first connecting pipe (201), a second connecting pipe (202) and a tamper nut assembly, wherein the tamper nut assembly is the tamper nut assembly according to any one of claims 1 to 8.
10. Air conditioning system according to claim 9, characterized in that the first adapter tube (201) is fixed by welding to the pipe connection (10), and the second adapter tube (202) is fixed by abutment of the pipe connection (10) inside the coupling nut (20).
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922153440.1U CN211738304U (en) | 2019-12-04 | 2019-12-04 | Anti-dismantling nut assembly and air conditioning system |
| JP2022528221A JP7413529B2 (en) | 2019-12-04 | 2020-09-16 | Anti-separation nut assembly and air conditioning system |
| PCT/CN2020/115439 WO2021109674A1 (en) | 2019-12-04 | 2020-09-16 | Disassembly-prevention nut assembly and air conditioning system |
| EP20895221.8A EP4067720A4 (en) | 2019-12-04 | 2020-09-16 | Disassembly-prevention nut assembly and air conditioning system |
| KR1020227022331A KR20220103184A (en) | 2019-12-04 | 2020-09-16 | Anti-disassembly nut assembly and air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922153440.1U CN211738304U (en) | 2019-12-04 | 2019-12-04 | Anti-dismantling nut assembly and air conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211738304U true CN211738304U (en) | 2020-10-23 |
Family
ID=72876243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922153440.1U Active CN211738304U (en) | 2019-12-04 | 2019-12-04 | Anti-dismantling nut assembly and air conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211738304U (en) |
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2019
- 2019-12-04 CN CN201922153440.1U patent/CN211738304U/en active Active
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