CN209909348U - Anti-disassembly type tooth-shaped meshing nut assembly, nut connecting pipe head assembly and air conditioner - Google Patents
Anti-disassembly type tooth-shaped meshing nut assembly, nut connecting pipe head assembly and air conditioner Download PDFInfo
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- CN209909348U CN209909348U CN201822248348.9U CN201822248348U CN209909348U CN 209909348 U CN209909348 U CN 209909348U CN 201822248348 U CN201822248348 U CN 201822248348U CN 209909348 U CN209909348 U CN 209909348U
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Abstract
The utility model discloses an anti-disassembly formula profile of tooth meshing nut subassembly and nut takeover head subassembly and air conditioner thereof contains: the nut cover is provided with a first tooth structure; the nut mandrel is provided with a spring and is arranged in the sleeve, so that the nut mandrel moves axially in the sleeve and is subjected to elastic force when moving axially; the nut mandrel is provided with a second tooth structure which is used for being meshed with the first tooth structure on the nut cover; when the tooth-shaped meshing nut assembly is unscrewed, the contact surfaces of the nut mandrel and the nut cover are inclined surfaces of tooth structures of the nut mandrel and the nut cover, the nut cover cannot drive the nut mandrel to rotate, the joint cannot be unscrewed from the nut mandrel, and disassembly prevention is achieved. The utility model discloses can realize the anti-disassembly, the processing of being convenient for, and the retaining ring is built-in, and anti-disassembly factor of safety is higher, avoids the refrigerant that leads to after current coupling and the connection of takeover nut are dismantled to reveal the problem, simple structure, and processing is convenient, and is sealed reliable, easy installation, and is with low costs.
Description
Technical Field
The utility model relates to a pipeline connection technical field, in particular to anti-disassembly formula profile of tooth meshing nut subassembly and nut nozzle subassembly and air conditioner thereof.
Background
At present, the indoor side of the split air conditioner of the common working medium (such as R22 and R410A) uses the way of pipe joint and pipe connection nut to connect the evaporator and the connecting pipe.
As stated, the use of detachable joints is not allowed for the indoor side of the air conditioner using flammable refrigerants such as R290 and R32. However, the existing pipe connecting nut is generally an integrated pipe connecting nut, which has the possibility of being detachable, but cannot meet the installation requirement of the inner side of an air conditioner using flammable refrigerants, i.e., the connection between the pipe connector and the pipe connecting nut is loosened, which can cause refrigerant leakage and cannot meet the requirements of assembly standard and safety. Certainly, some anti-disassembly connecting pipe nuts exist at present, but the structure is complex, so that the processing and the use of the connecting pipe nuts are inconvenient, and the cost is higher.
For the foregoing reasons, it is desirable to provide a structurally simple anti-disassembly nipple nut assembly that meets assembly standards and safety requirements.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an anti-disassembly formula profile of tooth meshing nut assembly and nut takeover head subassembly and air conditioner, interior axle in the nut assembly is the profile of tooth meshing with the cooperation of nut, can realize the anti-disassembly function, the processing of being more convenient for, the retaining ring is built-in moreover, and anti-disassembly factor of safety is higher, effectively avoids current coupling and takeover nut to connect the problem of revealing by the refrigerant that leads to after dismantling, its simple structure, and processing is convenient, and is sealed reliable, easy installation, and is with low costs.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: an anti-removal type tooth-shaped meshing nut component which is connected with a joint and comprises: the nut cover is provided with a first tooth structure;
the nut mandrel is arranged in the sleeve, so that the nut mandrel can move axially in the sleeve and is subjected to elastic force during axial movement; the nut mandrel is provided with a first tooth structure meshed with the nut mandrel;
when the tooth-shaped meshing nut assembly is unscrewed, the contact surface of the nut mandrel and the nut cover is an inclined surface of the first tooth structure and the second tooth structure, so that the nut cover cannot drive the nut mandrel to rotate, the joint cannot be screwed out of the nut mandrel, and the anti-disassembly effect is achieved.
Preferably, when the tooth-shaped meshing nut assembly is screwed, the contact surface of the nut mandrel and the nut cover is a straight surface of the first tooth structure and the second tooth structure, and the nut cover drives the nut mandrel to rotate so that the joint is screwed into the threaded hole of the nut mandrel.
Preferably, the first tooth structure and the second tooth structure are both wedge-shaped teeth.
Preferably, the anti-disassembly tooth-shaped meshing nut component further comprises a retaining ring which is arranged in the first groove on the nut cover; when the nut cover is installed in the sleeve, the retainer ring is simultaneously positioned in the first groove on the nut cover and the second groove on the sleeve, and the sleeve and the nut cover are ensured not to move axially.
Preferably, the first groove is an axial groove and the second groove is a hole groove.
Preferably, the nut cover is provided with an outer hexagonal structure which can facilitate the screwing of a tool to apply torque.
Preferably, the joint is provided with another outer hexagonal structure which can facilitate the tool to apply torque by screwing.
The utility model also provides an anti-disassembly formula profile of tooth meshing nut coupling subassembly contains the joint and as above the profile of tooth meshing nut subassembly.
Preferably, the joint is connected and fastened with the copper pipe through the tooth-shaped meshing nut assembly.
The utility model also provides an air conditioner, the indoor set connecting pipe of air conditioner and off-premises station connecting pipe between connect through tooth profile meshing nut coupling subassembly as above.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses an interior axle is the profile of tooth meshing with the cooperation of nut, can realize the anti-disassembly function, and the processing of being more convenient for, the retaining ring is built-in moreover, and anti-disassembly factor of safety is higher, effectively avoids current coupling and take over the problem of revealing by the refrigerant that leads to after dismantling after the nut is connected, its simple structure, and processing is convenient, and is sealed reliable, easy installation, and is with low costs.
Drawings
Fig. 1 is a schematic view of the parts of the anti-disassembly type tooth-shaped meshing nut assembly of the present invention;
fig. 2 is a schematic view of the nut mandrel and nut cap of the present invention;
fig. 3 is a schematic structural view of the nut mandrel and the nut cover of the present invention;
fig. 4 is a schematic view of the anti-disassembly tooth-shaped meshing nut assembly of the present invention in a tightened state;
FIG. 4a is an enlarged partial schematic view of FIG. 4;
fig. 5 is a schematic view of the anti-disassembly type tooth-shaped meshing nut assembly of the present invention in a state of being unscrewed;
FIG. 5a is an enlarged partial schematic view of FIG. 5;
fig. 6-8 are schematic diagrams showing the assembly of the anti-disassembly tooth-shaped engaging nut assembly of the present invention.
Wherein, 1, a joint; 2. a sleeve; 3. a spring; 4. a nut mandrel; 5. a retainer ring; 6. a nut cover; 7. copper tubing.
Detailed Description
In order to make the present invention more obvious and understandable, the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, fig. 2 and fig. 3, the utility model provides an anti-disassembly formula profile of tooth meshing nut subassembly is connected with joint 1, contains sleeve 2, spring 3, nut dabber 4, retaining ring 5 and nut lid 6. The joint 1 is connected and fastened with the copper pipe 7 through a nut component, so that a refrigerant of the air conditioner can pass through a pipeline. The nut mandrel 4 is provided with a wedge-shaped tooth structure which is used for being meshed with another wedge-shaped tooth structure on the nut cover 6 so as to realize the anti-disassembly function and facilitate the processing.
The utility model discloses an assembly method of nut component does: the spring 3 is arranged in the nut mandrel 4 and then arranged in the sleeve 2, the nut mandrel 4 can move in the axial direction in the sleeve 2, and the spring 3 is arranged in the sleeve 2, so that the nut mandrel 4 can be subjected to elastic force when moving in the axial direction; the retainer ring 5 is fitted in a groove on the nut cap 6 and then fitted into the sleeve 2, and after the fitting is completed, since the retainer ring 5 is fitted in both a groove (axial groove) on the nut cap 6 and a groove (bore groove) on the sleeve 2, it is ensured that the sleeve 2 and the nut cap 6 do not move axially.
After the above parts are mounted, as shown in fig. 6, 7 and 8, due to the elastic force of the spring 3 on the nut mandrel 4, the nut mandrel 4 is in close contact with the nut cover 6, so that the wedge-shaped tooth structure on the nut mandrel 4 is engaged with the wedge-shaped tooth structure on the nut cover 6. Become when the complete assembly of sleeve 2, 3 spring nut dabber 4, retaining ring 5 and nut lid 6 and become the utility model discloses a profile of tooth meshing nut subassembly.
The utility model discloses a nut component's screwing up and unscrewing is through the instrument (for example spanner) respectively exert the moment of torsion on the outer hexagonal structure of joint 1 and the outer hexagonal structure of nut lid 6.
As shown in fig. 4 and fig. 4a, when the nut assembly is tightened by a wrench, the contact surface between the nut mandrel 4 and the nut cover 6 is a straight surface of the wedge-shaped teeth of the two parts, so that a large force can be applied, the nut cover 6 drives the nut mandrel 4 to rotate together, and the joint 1 is screwed into the threaded hole of the nut mandrel 4.
As shown in fig. 5 and fig. 5a, when the nut assembly is unscrewed by using the wrench, the contact surfaces of the nut mandrel 4 and the nut cover 6 are the inclined surfaces of the wedge-shaped teeth of the two parts, and can only bear a small force, and the nut cover 6 cannot drive the nut mandrel 4 to rotate together, so that the joint 1 cannot be unscrewed from the nut mandrel 4, and the anti-disassembly effect is achieved.
From the above, the retainer ring 5 is a key part for connecting the sleeve 2 and the nut cover 6, if the sleeve 2 and the nut cover 6 can be connected by using the pin, but the pin can be seen, so that the disassembly is convenient (a tool is also needed at the moment), but the retainer ring 5 is arranged in the sleeve 2, so that other people can hardly visually see the connecting mode, the disassembly difficulty is increased, and the disassembly prevention performance is better.
The utility model discloses an anti-disassembly formula profile of tooth meshing nut subassembly applies to a nut pipe coupling subassembly, and nut subassembly is connected through screw thread and joint 1 usually, and this nut pipe coupling subassembly can be used for connecting air conditioner indoor unit connecting pipe and off-premises station connecting pipe to when guaranteeing closely to cooperate between nut subassembly and the joint, play anti-disassembly's effect, prevent that the refrigerant from revealing.
While the present invention has been described in detail with reference to the preferred embodiments thereof, it should be understood that the above description should not be taken as limiting the present invention. Numerous modifications and alterations to the present invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be limited only by the attached claims.
Claims (10)
1. An anti-disassembly tooth-shaped meshing nut component is connected with a joint (1), and is characterized by comprising:
the nut cover (6) is provided with a first tooth structure;
the nut core shaft (4) is provided with a spring (3) and is arranged in the sleeve (2) so that the nut core shaft (4) can move axially in the sleeve (2) and the nut core shaft (4) is subjected to elastic force when moving axially; the nut mandrel (4) is provided with a second tooth structure meshed with the first tooth structure;
when the tooth-shaped meshing nut assembly is unscrewed, the contact surface between the nut mandrel (4) and the nut cover (6) is an inclined surface of a first tooth structure and an inclined surface of a second tooth structure, so that the nut cover (6) cannot drive the nut mandrel (4) to rotate, the joint (1) cannot be screwed out of the nut mandrel (4), and the anti-disassembly effect is achieved.
2. The anti-removal toothed meshing nut assembly according to claim 1,
when the tooth-shaped meshing nut assembly is screwed down, the contact surface of the nut mandrel (4) and the nut cover (6) is a straight surface of a first tooth structure and a second tooth structure, and the nut cover (6) drives the nut mandrel (4) to rotate so that the joint (1) is screwed into the threaded hole of the nut mandrel (4).
3. The anti-removal toothed meshing nut assembly according to claim 1 or 2,
the first tooth structure and the second tooth structure are both wedge-shaped teeth.
4. The anti-removal tooth-shaped meshing nut assembly according to claim 1, further comprising a retainer ring (5) disposed in a first groove on the nut cap (6); when the nut cover (6) is installed in the sleeve (2), the retainer ring (5) is simultaneously positioned in the first groove on the nut cover (6) and the second groove on the sleeve (2), and the sleeve (2) and the nut cover (6) are prevented from moving axially.
5. The anti-removal toothed meshing nut assembly according to claim 4,
the first groove is a shaft groove, and the second groove is a hole groove.
6. The anti-removal toothed meshing nut assembly according to claim 1 or 2,
the nut cover (6) is provided with an outer hexagonal structure which is convenient for a tool to screw and apply torque.
7. The anti-removal toothed meshing nut assembly according to claim 1 or 2,
the joint (1) is provided with another outer hexagonal structure which is convenient for a tool to screw and apply torque.
8. A disassembly-resistant toothed meshing nut coupling assembly, characterized in that it comprises a coupling (1) and a toothed meshing nut assembly according to any one of claims 1 to 7.
9. The anti-removal toothed meshing nut fitting assembly of claim 8,
the joint (1) is connected and fastened with the copper pipe (7) through the tooth-shaped meshing nut component.
10. An air conditioner characterized in that an indoor unit connection pipe and an outdoor unit connection pipe of the air conditioner are connected by the tooth-shaped engaging nut pipe joint assembly as claimed in claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822248348.9U CN209909348U (en) | 2018-12-29 | 2018-12-29 | Anti-disassembly type tooth-shaped meshing nut assembly, nut connecting pipe head assembly and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822248348.9U CN209909348U (en) | 2018-12-29 | 2018-12-29 | Anti-disassembly type tooth-shaped meshing nut assembly, nut connecting pipe head assembly and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209909348U true CN209909348U (en) | 2020-01-07 |
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ID=69028101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822248348.9U Active CN209909348U (en) | 2018-12-29 | 2018-12-29 | Anti-disassembly type tooth-shaped meshing nut assembly, nut connecting pipe head assembly and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209909348U (en) |
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2018
- 2018-12-29 CN CN201822248348.9U patent/CN209909348U/en active Active
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