Pipe joint capable of being freely connected in staggered mode

By designing two sets of S-type threaded pipe fittings and connecting them in series with a rotary joint, the problem of fixed connection end positions of existing pipe fittings was solved, enabling arbitrary misalignment of pipes and improving installation efficiency.

CN224120844UActive Publication Date: 2026-04-14FANGXIAN QIYANG IND & TRADE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FANGXIAN QIYANG IND & TRADE CO LTD
Filing Date
2025-06-04
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

The connection end of the existing pipe fitting is fixed and cannot be moved, which means that if the pipe installation hole is misaligned, it is necessary to re-drill the hole, which is labor-intensive and time-consuming.

Method used

Two sets of S-type wire-connected pipe fittings are used in series, and they are connected in series by a rotary joint so that the two ends can be connected in any staggered manner within a certain range.

Benefits of technology

It enables flexibility in pipe connections, eliminates the need for re-drilling, and improves installation efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a pipe joint capable of being arbitrarily connected in a staggered manner, which belongs to the field of automobile accessories and comprises an upper bent pipe, an air inlet and an air inlet external thread are arranged above the upper bent pipe, a connecting pipe is arranged below the upper bent pipe, the connecting pipe is connected with a silica gel sealing ring and a check ring, the upper bent pipe is movably connected with a connecting port through the connecting pipe, and the connecting port is connected with the upper bent pipe. The S-shaped double-nipple pipe joint comprises a connecting pipe, a silica gel sealing ring, a check ring and a lower bent pipe, a connecting opening and an anti-falling groove are formed in the upper portion of the lower bent pipe, an air outlet and an air outlet external thread are formed in the lower portion of the lower bent pipe, and the connecting pipe, the silica gel sealing ring, the check ring, the connecting opening and the anti-falling groove are mutually connected to form a rotating joint. After the two sets of S-shaped pipe joints are connected in series through the rotary joints, the two ends of the S-shaped pipe joints can be connected with a pipeline in a staggered mode at will within the corresponding range.
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Description

Technical Field

[0001] This utility model relates to a pipe connector that can be arbitrarily misaligned for connection, belonging to the field of automotive parts, and involves a pipe connector whose two ends can be arbitrarily misaligned for connection. Background Technology

[0002] Pipe fittings, a type of connector for connecting pipes, are generally classified into threaded pipe fittings, tee fittings, and four-way fittings. Threaded pipe fittings have threads on both ends, allowing two pipes to be connected together using the reducer nuts at both ends. Tee fittings have threads on all three ends, each connected to a separate pipe using a reducer nut. Four-way fittings have threads on all four ends, each connected to a separate pipe using a reducer nut. All three types of pipe fittings share a common characteristic: the position between the two connecting ends is fixed and cannot be moved. If the pipe installation holes are misaligned, new holes need to be drilled, which is labor-intensive and time-consuming. Therefore, a pipe fitting that allows for arbitrary misalignment is needed.

[0003] Authorization Announcement No.: CN86208705 A flexible sleeve pipe joint that does not require any connection structure of the pipe is shown in the figure. The flexible sleeve [2] is a specially made flexible hose that is used to connect the ends of two equal cross-section smooth pipes and clamp them with a clamp [4]. It allows the pipe to swing, shift and move axially within a large range, and the sealing of the interface is basically unaffected by these changes; the stress on the pipe caused by these changes is also small, which can greatly reduce the leakage of the interface and the breakage of the pipe; it also allows the pipeline to change its direction arbitrarily within a certain range to bypass obstacles and adapt to changes in the terrain. It is particularly suitable for pipelines in areas with very unstable foundations, complex geological and geomorphological conditions and earthquake-prone areas.

[0004] Authorization Announcement No.: CN88210949. This dual-purpose quick-connect pipe fitting consists of a mating part, a ring connector, and a tapered pipe thread. Essentially, it adds a tapered pipe thread to the ring connector for easier engineering operations. It can be used for connecting rubber hoses, metal pipes, rubber hoses and metal pipes, and other similar pipe connections, suitable for various industries such as industry, agriculture, horticulture, and construction.

[0005] The aforementioned flexible sleeve pipe joint, which does not require any connecting structure from the pipe, utilizes a flexible sleeve, flexible hose, smooth pipe, and clamp to allow the pipeline to change its direction arbitrarily within a certain range, bypassing obstacles and adapting to changes in terrain. The aforementioned dual-purpose quick-connect pipe joint employs a butt joint, ring sequence joint, and tapered pipe thread, and can be used for connecting rubber hoses, metal pipes, rubber hoses and metal pipes, and other similar pipe connections. Utility Model Content

[0006] This utility model provides a pipe fitting that can be arbitrarily misaligned. It provides two sets of S-type threaded pipe fittings connected in series. After the two sets of S-type pipe fittings are connected in series by a rotary joint, their two ends can be arbitrarily misaligned within a corresponding range to connect with the pipeline.

[0007] The technical solution of this utility model is as follows: a pipe connector that can be arbitrarily misaligned includes an upper bend pipe 1, an air inlet 2 and an air inlet external thread 3 are provided above the upper bend pipe 1, a connecting pipe 8 is provided below the upper bend pipe 1, the connecting pipe 8 is connected to a silicone sealing ring 9 and a retaining ring 10, the upper bend pipe 1 is movably connected to a connecting port 11 through the connecting pipe 8, a connecting port 11 and an anti-detachment groove 12 are provided above the lower bend pipe 4, an air outlet 5 and an air outlet external thread 6 are provided below the lower bend pipe 4, and the connecting pipe 8, silicone sealing ring 9, retaining ring 10, connecting port 11 and anti-detachment groove 12 are interconnected to form a rotary joint 7.

[0008] Furthermore, the upper bend 1 is a hollow S-shaped structure, and the air inlet 2 at the top of the upper bend 1 is cylindrical with an external air inlet thread 3 on the outside.

[0009] Furthermore, the connecting pipe 8 at the bottom of the upper bend 1 is cylindrical, with an annular groove in the center of the outer surface of the cylindrical shape, and a silicone sealing ring 9 installed inside the groove.

[0010] Furthermore, the retaining ring 10 at the bottom of the connecting pipe 8 is a circular ring made of red copper.

[0011] Furthermore, the lower bend 4 is a hollow S-shape, the connection port 11 at the top of the lower bend 4 is cylindrical, and the anti-detachment groove 12 in the center of the inner wall of the cylindrical shape is an annular groove.

[0012] Furthermore, the air outlet 5 at the bottom of the lower bend 4 is cylindrical, and an external air outlet thread 6 is provided on the outside of the cylindrical part.

[0013] Furthermore, the connecting tube 8 and the silicone sealing ring 9 are installed above the inside of the connecting port 11.

[0014] Furthermore, the retaining ring 10 is installed inside the anti-detachment groove 12.

[0015] Furthermore, the connecting pipe 8, the retaining ring 10, the connecting port 11, and the anti-detachment groove 12 are connected by free rotation.

[0016] Beneficial effects: Existing pipe fittings all have one thing in common: the position between the two connection ends is fixed and cannot be moved. When the pipe installation hole is misaligned, it is necessary to re-drill the hole, which is labor-intensive and time-consuming.

[0017] A pipe fitting that can be arbitrarily misaligned uses two sets of S-type threaded pipe fittings connected in series. After the two sets of S-type pipe fittings are connected in series by a rotary joint, their two ends can be arbitrarily misaligned within a corresponding range to connect with the pipeline, saving labor and time. Attached Figure Description

[0018] Figure 1 A front view of a pipe fitting that can be connected in any staggered configuration;

[0019] Figure 2 The front view shows the upper bend, air inlet, external thread of the air inlet, connecting pipe, silicone sealing ring, and retaining ring.

[0020] Figure 3 The front view shows the lower bend, air outlet, external thread of the air outlet, connector, and anti-detachment groove.

[0021] In the diagram, 1 is the upper bend, 2 is the air inlet, 3 is the external thread of the air inlet, 4 is the lower bend, 5 is the air outlet, 6 is the external thread of the air outlet, 7 is the rotary joint, 8 is the connecting pipe, 9 is the silicone sealing ring, 10 is the retaining ring, 11 is the connecting port, and 12 is the anti-detachment groove. Detailed Implementation

[0022] The shape and structure of this utility model will be carefully described in conjunction with the accompanying drawings and reference numerals:

[0023] See appendix Figure 1-3 A pipe fitting that can be arbitrarily misaligned includes an upper bend 1, which is used to introduce gas from the pipe into a lower bend 4. An air inlet 2 and an external thread 3 are provided above the upper bend 1. The air inlet 2 is used to mate with a sealing ring at the top of the front pipe, and the external thread 3 is used to connect with a locking nut at the top of the front pipe. A connecting pipe 8 is provided below the upper bend 1, which supports a silicone sealing ring 9 and a retaining ring 10. The connecting pipe 8 is connected to the silicone sealing ring 9 and the retaining ring 10. The silicone sealing ring 9 is used to seal against the inner wall of the connecting port 11, and the retaining ring 10 is used to lock against the anti-detachment groove 12. The upper bend 1 is movably connected to the connecting port 11 via the connecting pipe 8. The connecting port 11 is used to connect with the connecting pipe 8. The upper part of the lower bend 4 is provided with the connecting port 11 and the anti-detachment groove 12. The anti-detachment groove 12 is used to lock the retaining ring 10 to prevent it from falling off. The lower part of the lower bend 4 is provided with the air outlet 5 and the air outlet external thread 6. The air outlet 5 is used to connect with the sealing ring at the top of the rear pipe. The air outlet external thread 6 is used to connect with the locking nut at the top of the rear pipe. The connecting pipe 8, the silicone sealing ring 9, the retaining ring 10, the connecting port 11, and the anti-detachment groove 12 are interconnected to form a rotary joint 7. The rotary joint 7 is used for rotation and sealing between the upper bend 1 and the lower bend 4.

[0024] See appendix Figure 1 The upper bend 1 is hollow S-shaped, and the air inlet 2 at the top of the upper bend 1 is cylindrical, with an external air inlet thread 3 on the outside of the cylindrical part.

[0025] See appendix Figure 2 The connecting pipe 8 at the bottom of the upper bend 1 is cylindrical, with an annular groove in the center of the outer side of the cylindrical shape, and a silicone sealing ring 9 installed inside the groove.

[0026] See appendix Figure 2 The retaining ring 10 at the bottom of the connecting pipe 8 is a circular ring made of red copper.

[0027] See appendix Figure 3 The lower bend 4 is hollow S-shaped, and the connection port 11 at the top of the lower bend 4 is cylindrical. The anti-detachment groove 12 in the center of the inner wall of the cylindrical shape is an annular groove.

[0028] See appendix Figure 1 and 3 The air outlet 5 at the bottom of the lower bend 4 is cylindrical, and the outer surface of the cylindrical outlet is provided with an external air outlet thread 6.

[0029] See appendix Figure 1-3 The connecting pipe 8 and the silicone sealing ring 9 are installed above the inside of the connecting port 11.

[0030] See appendix Figure 2-3 The retaining ring 10 is installed inside the anti-detachment groove 12.

[0031] See appendix Figure 2-3 The connecting pipe 8, the retaining ring 10, the connecting port 11, and the anti-detachment groove 12 are connected by free rotation.

[0032] Based on the above simple description of the usage method of a pipe fitting that can be connected in any misalignment, the worker places an O-ring into the locking nut at the top of the front pipe, with the O-ring aligning with the flat surface of the top of the front pipe. The worker then uses a wrench to tighten the locking nut at the top of the front pipe and the external thread 3 of the air inlet. The worker then places an O-ring into the locking nut at the top of the rear pipe, with the O-ring aligning with the flat surface of the top of the rear pipe. The worker aligns the external thread 6 of the air outlet with the locking nut at the top of the rear pipe (if they are misaligned, the worker holds the lower bend 4 and rotates it to align the external thread 6 of the air outlet with the locking nut at the top of the rear pipe). The worker then uses a wrench to tighten the locking nut at the top of the rear pipe and the external thread 6 of the air outlet. The pipe fitting that can be connected in any misalignment is now installed.

[0033] The above description is merely a conventional disclosure of this utility model and is not intended to limit this utility model in any way. Any adjustments, modifications, and evolutions made by those skilled in the art without departing from the technical solution of this utility model, implementing the above-described technology, or making any equivalent changes shall fall within the protection scope of this utility model.

Claims

1. A pipe fitting that can be connected in any staggered manner, including an upward bend, characterized in that: An air inlet and an external thread are provided at the top of the upper bend pipe, and a connecting pipe is provided at the bottom of the upper bend pipe. The connecting pipe is connected to a silicone sealing ring and a retaining ring. The upper bend pipe is movably connected to the connecting port through the connecting pipe. A connecting port and an anti-detachment groove are provided at the top of the lower bend pipe, and an air outlet and an external thread are provided at the bottom of the lower bend pipe. The connecting pipe, silicone sealing ring, retaining ring, connecting port, and anti-detachment groove are interconnected to form a rotary joint.

2. The pipe fitting that can be arbitrarily misaligned according to claim 1, characterized in that: The upper bend is hollow S-shaped, and the air inlet at the top of the upper bend is cylindrical with an external thread.

3. The pipe fitting that can be arbitrarily misaligned according to claim 1, characterized in that: The connecting pipe at the bottom of the upper bend is cylindrical, with an annular groove in the center of the outer side of the cylinder, and a silicone sealing ring installed inside the groove.

4. The pipe fitting that can be arbitrarily misaligned according to claim 1, characterized in that: The retaining ring at the bottom of the connecting pipe is a circular ring made of red copper.

5. A pipe fitting that can be arbitrarily misaligned according to claim 1, characterized in that... The lower bend is hollow S-shaped, and the connection port at the top of the lower bend is cylindrical. The anti-detachment groove in the center of the inner wall of the cylindrical shape is an annular groove.

6. The pipe fitting that can be arbitrarily misaligned according to claim 1, characterized in that... The air outlet at the bottom of the lower bend is cylindrical, and the outside of the cylindrical outlet is provided with an external thread.

7. A pipe fitting that can be arbitrarily misaligned according to claim 1, characterized in that... The connecting tube and silicone sealing ring are installed inside the upper part of the connection port.

8. A pipe fitting that can be arbitrarily misaligned according to claim 1 or 4, characterized in that... The retaining ring is installed inside the anti-detachment groove.

9. A pipe fitting that can be arbitrarily misaligned according to claim 1, characterized in that... The connecting pipe, retaining ring, connecting port, and anti-detachment groove are connected by free rotation.

Citation Information

Patent Citations

  • Connector of flexible drivepipe

    CN86208705U

  • Dual-purpose quick pipe-joint

    CN88210949U