A type of anti-loosening pipe joint assembly
The combination of sealing rings and barbs solves the problem of loosening of pipe joints under limited space, and achieves stable connection under vibration and tensile conditions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 江苏纳光通信科技有限公司
- Filing Date
- 2025-08-25
- Publication Date
- 2026-07-31
AI Technical Summary
In situations where space is limited, existing technologies cannot effectively prevent pipe fittings from loosening under vibration and tension conditions.
The combination structure of sealing ring and barb is adopted. The axial force is provided by the compression deformation of the sealing ring, and the matching structure of the barb limits the pipe joint and junction box in the axial and circumferential directions to ensure the stability of the connection.
It achieves anti-loosening of pipe joints in space-constrained situations, ensuring the reliability and stability of the connection, and is suitable for wiring needs in limited spaces.
Smart Images
Figure CN224582795U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of electrical connector technology, and in particular relates to an anti-loosening tube connector assembly. Background Technology
[0002] When wiring existing components, it is generally necessary to use junction boxes for wiring.
[0003] Under conditions of strong vibration and the need to withstand certain tensile forces, metal conduit connectors must be used to ensure the reliability of wiring harness connections; elastic components with plastic claw structures cannot be used. Where space is not constrained, conduit connectors on junction boxes can be secured with fuses to prevent loosening and achieve vibration resistance.
[0004] When space is limited, there is a problem that the pipe fitting cannot be secured with a fuse using tools to prevent loosening between the pipe fitting and the equipment. To address this problem, an anti-loosening pipe fitting assembly is designed. Utility Model Content
[0005] This utility model addresses the problems in the prior art by proposing the following technical solution:
[0006] A non-loosening pipe joint assembly includes two pipe joints and a junction box assembled between the two pipe joints. Several cables pass through the inside of each pipe joint. Each pipe joint includes a housing with an axial through-center, a sealing ring sleeved on the housing, and barbs sleeved on the housing.
[0007] The outer ring sidewall of the housing is provided with a step, and the outer ring sidewall of the housing corresponding to the barb is provided with circumferentially distributed annular grooves A and circumferentially distributed keyways A; the inner ring sidewall of the barb is provided with a single key A, and the outer ring sidewall of the barb is provided with circumferentially distributed barb structures and axially distributed single keys B.
[0008] The junction box has openings that respectively match two pipe connectors. The openings connect the inside and outside of the junction box. The openings are provided with axially distributed keyways B and circumferentially distributed annular grooves B.
[0009] The housing has a through opening, the inner ring of the barb is located inside the annular groove A, the barb structure is located inside the annular groove B, the single key A matches the keyway A, the single key B matches the keyway B, and the sealing ring fitted on the housing is deformed by the step and the junction box.
[0010] As a preferred embodiment of the above technical solution, the barb is a metal elastic component, and a groove is provided on the circumference of the barb.
[0011] As a preferred embodiment of the above technical solution, one end of the barb is provided with a slope.
[0012] As a preferred embodiment of the above technical solution, the outer ring of one end of the housing located inside the junction box is provided with an arc surface.
[0013] As a preferred embodiment of the above technical solution, a spiral track is provided on the inner ring of one end of the housing located outside the junction box.
[0014] As a preferred embodiment of the above technical solution, a sealing ring groove for accommodating the sealing ring is provided on the step.
[0015] The beneficial effects of this utility model are as follows:
[0016] 1. In this technical solution, an anti-loosening pipe joint assembly uses a sealing ring and barbs for transition when assembling the pipe joint with the junction box. The inner ring of the barb is located inside the annular groove A, and the barb structure is located inside the annular groove B, realizing the connection between the housing and the junction box. The sealing ring is deformed by the step and the junction box, and the axial force is provided by compressing the sealing ring to make the junction box, barbs, and housing fit completely, preventing the pipe joint from moving axially. The single key A on the barb matches the keyway A, and the single key B matches the keyway B, which limits the circumferential movement of the housing, barbs, and junction box to prevent the pipe joint from rotating.
[0017] 2. The anti-loosening pipe joint assembly in this technical solution limits the relative positions of the pipe joint and the junction box in both axial and circumferential directions, thereby achieving the anti-loosening setting of the pipe joint and solving the problem that the anti-loosening purpose cannot be achieved by means of fuses when space is limited. Attached Figure Description
[0018] Figure 1 The diagram shown is a structural schematic of an anti-loosening pipe joint assembly according to Embodiment 1;
[0019] Figure 2 What is shown is Figure 1 Schematic diagram of a partial explosion of the structure in the middle;
[0020] Figure 3 The diagram shown is a cross-sectional view of the assembly of the pipe connector and the junction box in Embodiment 1;
[0021] Figure 4 The diagram shown is an exploded view of the pipe joint in Example 1;
[0022] Figure 5 The diagram shown is a cross-sectional view of the pipe fitting after assembly in Example 1;
[0023] Figure 6 The diagram shown is a structural schematic of the shell in Embodiment 1;
[0024] Figure (a) is a schematic cross-sectional view of the shell, and Figure (b) is a schematic diagram of the external structure of the shell.
[0025] Figure 7 The diagram shown is a structural schematic of the barbed component in Embodiment 1;
[0026] Figure (a) is a schematic diagram of the structure from the first perspective, and Figure (b) is a schematic diagram of the structure from the second perspective.
[0027] Figure 8 The diagram shown is a structural schematic of the junction box in Embodiment 1;
[0028] Figure (a) is a three-dimensional structural schematic diagram of the junction box, and Figure (b) is a partial structural cross-sectional schematic diagram of the junction box.
[0029] Figure 9 The diagram shown is a structural schematic of the assembly process of the pipe connector and junction box in Embodiment 1;
[0030] Figure 10 The diagram shown is a structural schematic of the assembled pipe connector and junction box in Embodiment 1.
[0031] Reference numerals: pipe fitting 10, housing 11, spiral track 111, sealing ring groove 112, annular groove A113, keyway A114, arc surface 115, step 116, sealing ring 12, barb 13, ramp 131, barb structure 132, slot 133, single key A134, single key B135.
[0032] Junction box 20, opening 21, keyway B22, annular groove B23. Detailed Implementation
[0033] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.
[0034] Example 1
[0035] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, an anti-loosening pipe joint assembly includes two pipe joints 10 and a junction box 20 assembled between the two pipe joints 10. Several cables pass through the inside of the pipe joints 10. The pipe joint 10 includes a housing 11 with an axial through-center, a sealing ring 12 sleeved on the housing 11, and a barb 13 sleeved on the housing 11. The sealing ring 12 is a rubber component.
[0036] The outer ring sidewall of the housing 11 is provided with a step 116, and the outer ring sidewall of the housing 11 corresponding to the barb 13 is provided with a circumferentially distributed annular groove A113 and a circumferentially distributed keyway A114; the inner ring sidewall of the barb 13 is provided with a single key A134, and the outer ring sidewall of the barb 13 is provided with a circumferentially distributed barb structure 132 and an axially distributed single key B135;
[0037] The junction box 20 has openings 21 that respectively match two pipe connectors 10. The openings 21 connect the inside and outside of the junction box 20. The openings 21 are provided with axially distributed keyways B22 and circumferentially distributed annular grooves B23. The thickness of the openings 21 is 3mm. The installation size is relatively small and it is suitable for use in limited spaces. The pipe connectors 10 can achieve the anti-loosening function when the installation panel size is small.
[0038] When assembling a type of anti-loosening pipe fitting assembly, the single key B135 on the pipe fitting 10 is aligned with the keyway B22 on the junction box 20. Figure 10 Apply force in the indicated direction to push the pipe connector 10 into the junction box 20. At this time, the barb 13 retracts into the annular groove A113 of the housing 11 under the action of force. After the assembly is in place, the barb 13 springs open into the annular groove B23 to achieve the locking function, as shown in the figure.
[0039] After assembly, the housing 11 passes through the opening 21, the inner ring of the barb 13 is located inside the annular groove A113, the barb structure 132 is located inside the annular groove B23, the single key A134 matches the keyway A114, the single key B135 matches the keyway B22, and the sealing ring 12 fitted on the housing 11 is deformed by the step 116 and the junction box 20.
[0040] In this technical solution, an anti-loosening pipe joint assembly uses a sealing ring 12 and a barb 13 for transition when assembling the pipe joint 10 and the junction box 20. The inner ring of the barb 13 is located inside the annular groove A113, and the barb structure 132 is located inside the annular groove B23, realizing the connection between the housing 11 and the junction box 20. The sealing ring 12 is deformed by the step 116 and the junction box 20. The axial force provided by the compression of the sealing ring 12 makes the junction box 20, the barb 13, and the housing 11 fit completely, preventing the pipe joint 10 from moving axially. The single key A134 on the barb 13 matches the keyway A114, and the single key B135 matches the keyway B22, limiting the circumferential movement of the housing 11, the barb 13, and the junction box 20, preventing the pipe joint 10 from rotating.
[0041] The anti-loosening pipe joint assembly in this technical solution limits the relative positions of the pipe joint 10 and the junction box 20 in both axial and circumferential directions, thereby achieving the anti-loosening setting of the pipe joint 10 and solving the problem that the anti-loosening purpose cannot be achieved by means of fuses when space is limited.
[0042] To further improve the ease of assembly of the barbed part 13 and ensure its assembly stability, such as Figure 4 , Figure 7 As shown, the barb 13 is a metal elastic component, and a slot 133 is provided on the circumference of the barb 13. When the barb 13 is installed into the annular groove 21 on the junction box 20, the barb 13 can be appropriately stretched. After assembly, it can automatically spring back to its original position. The barb 13 has an elastic setting, which makes the fit between the barb 13 and the annular groove 21 tighter and ensures assembly stability.
[0043] like Figure 7 As shown, a ramp 131 is provided at one end of the barb 13. The ramp 131 serves as a guide when assembling the pipe connector 10 and the junction box 20, thereby improving the ease of assembly.
[0044] like Figure 6 As shown, the outer ring of one end of the housing 11 located inside the junction box 20 is provided with an arc surface 115. The arc surface 115 can reduce the friction between the housing 11 and the cable during wiring and prevent the cable from being scratched.
[0045] like Figure 6 As shown, a spiral track 111 is provided on the inner ring of one end of the housing 11 located outside the junction box 20. The spiral track 111 is provided for installing the bellows.
[0046] like Figure 6 As shown, a sealing ring groove 112 is provided on the step 116 to accommodate the sealing ring 12. The sealing ring groove 112 limits the radial position of the sealing ring 12, improves the positional stability of the sealing ring 12, and ensures its axial anti-movement function.
[0047] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.
Claims
1. An anti-loose pipe joint assembly comprising two pipe joints, a distribution box fitted between the two pipe joints, the pipe joints internally passing a plurality of cables, characterized in that, The pipe fitting includes a housing that extends axially through the center, a sealing ring fitted on the housing, and barbs fitted on the housing; The outer ring sidewall of the housing is provided with a step, and the outer ring sidewall of the housing corresponding to the barb is provided with circumferentially distributed annular grooves A and circumferentially distributed keyways A; the inner ring sidewall of the barb is provided with a single key A, and the outer ring sidewall of the barb is provided with circumferentially distributed barb structures and axially distributed single keys B. The junction box has openings that respectively match two pipe connectors. The openings connect the inside and outside of the junction box. The openings are provided with axially distributed keyways B and circumferentially distributed annular grooves B. The housing has a through opening, the inner ring of the barb is located inside the annular groove A, the barb structure is located inside the annular groove B, the single key A matches the keyway A, the single key B matches the keyway B, and the sealing ring fitted on the housing is deformed by the step and the junction box.
2. A check pipe coupling assembly according to claim 1, wherein, The barb is a metal elastic component, and a groove is provided on the circumference of the barb.
3. A check pipe coupling assembly according to claim 1 wherein, One end of the barb is provided with a ramp.
4. A check pipe coupling assembly according to claim 1 wherein, The outer ring of one end of the housing located inside the junction box is provided with an arc surface.
5. A check pipe coupling assembly according to claim 1 wherein, The housing has a spiral track on the inner ring of one end located outside the junction box.
6. A check pipe coupling assembly according to claim 1 wherein, The step is provided with a sealing ring groove to accommodate the sealing ring.