Plastic pipe joint
By using threaded plastic pipe fittings, and through the matching connection end and end seat design and reinforcement structure, the problems of inconvenience and poor firmness in hot-melt connection of plastic pipes are solved, achieving a fast and stable connection effect.
Patent Information
- Application Number
- CN202422923316.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-11-28
AI Technical Summary
Existing hot-melt connections for plastic pipes are inconvenient to perform, have poor connection strength, and are prone to forming resistance rings, affecting their performance.
The threaded plastic pipe fittings utilize matching connection ends and end caps, combined with reinforced structures and sealing rings, to achieve a quick and secure connection, avoiding misalignment of tooling fixtures.
It enables quick and secure connection without tooling or fixtures, ensuring unimpeded flow, enhancing connection strength and sealing, and preventing water leakage.
Smart Images
Figure CN223469912U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of plastic pipe, especially to a plastic pipe joint. BACKGROUND
[0002] At present, the main technical means used in the hot melt connection of plastic pipe is generally as follows: the end part of two plastic pipes with the same pipe diameter is heated to a near molten state by using an electric heating plate, and then they are butted together.
[0003] Although this hot melt butt joint method can realize the butt joint of the pipes, it has the following defects: (1) before the hot melt butt joint, a tool clamp is needed to position the two plastic pipes, which is inconvenient to operate; (2) the hot melt butt joint area of the plastic pipe is small, which leads to poor firmness of the pipe connection; (3) during the hot melt butt joint, plastic is easily protruded at the pipe connection, forming a resistance ring, which further leads to a large flow resistance at the pipe connection, affecting the use effect. UTILITY MODEL CONTENTS
[0004] The main purpose of the utility model is to provide a plastic pipe joint to solve the above technical problems, realize the quick connection of two pipes, ensure the stability of the connection, do not need a tool clamp for alignment, and ensure unobstructed flow after installation.
[0005] To achieve the above purpose, the utility model adopts the following technical scheme:
[0006] A plastic pipe joint comprises a connecting pipe and a pipe joint, the pipe joint is installed on the pipe through threaded connection, the pipe joint is clamped and installed at both ends of the connecting pipe, a connecting end head is arranged on the pipe joint, both ends of the connecting pipe are provided with a connecting end seat, the connecting end head is clamped on the connecting end seat, the shape of the connecting end seat matches that of the connecting end head, a plurality of convex rings are equidistantly arranged on the connecting end head, and the plurality of convex rings are clamped with the connecting end seat.
[0007] As a preferred technical scheme, the shape of the cross section of the convex ring is a right trapezoid.
[0008] As a preferred technical scheme, a reinforcing structure is further arranged on the connecting end head, and the reinforcing structure is arranged in the connecting end head.
[0009] As a preferred technical scheme, the reinforcing structure is a reinforcing mesh structure.
[0010] As a preferred technical scheme, a limiting step is arranged on the pipe joint, and the limiting step is arranged close to the connecting end head.
[0011] As a preferred technical scheme, the pipe joint is further provided with a sealing ring, which is arranged between the limiting step and the connecting end head.
[0012] As a preferred technical scheme, the pipe joint is further provided with a sealing ring, which is arranged between the limiting step and the connecting end head.
[0013] As a preferred technical scheme, the pipe joint is further provided with a sealing ring, which is arranged between the limiting step and the connecting end head.
[0014] As a preferred technical scheme, the pipe joint is further provided with a sealing ring, which is arranged between the limiting step and the connecting end head.
[0015] As a preferred technical scheme, the pipe joint is further provided with a sealing ring, which is arranged between the limiting step and the connecting end head.
[0016] The plastic pipe joint has the advantages that the connecting end head is clamped on the connecting end seat, the shape of the connecting end seat matches the shape of the connecting end head, the two pipe sections are quickly connected, the stability of the connection is ensured, the alignment is not required by using a tool clamp, and the plastic pipe joint can flow without obstruction after installation. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 FIG. 1 is an exploded view of the plastic pipe joint according to the embodiment 1 of the present application;
[0018] Figure 2 FIG. 2 is a sectional view of the plastic pipe joint according to the embodiment 1 of the present application;
[0019] Figure 3 FIG. 5 is an exploded view of the plastic pipe joint according to the embodiment 2 of the present application;
[0020] Figure 4 FIG. 6 is a sectional view of the plastic pipe joint according to the embodiment 2 of the present application. DETAILED DESCRIPTION
[0021] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.
[0022] [Example 1]
[0023] As Figure 1 and Figure 2 A plastic pipe joint, comprising a connecting pipe 1 and a pipe joint 2, the connecting pipe 1 is a straight-through pipe, the pipe joint 2 is installed on the pipe through threaded connection, the pipe joint 2 is clamped and installed on both ends of the connecting pipe 1, the pipe joint 2 is provided with a connecting end 21, both ends of the connecting pipe 1 are provided with a connecting end seat 11, the connecting end 21 is clamped on the connecting end seat 11, and the shape of the connecting end seat 11 matches the shape of the connecting end 21, so that two sections of pipes are quickly connected, the stability of the connection is ensured, the alignment is not required by tooling clamps, and unobstructed flow can be ensured after installation.
[0024] A plurality of convex rings 211 are equidistantly arranged on the connecting end 21, the plurality of convex rings 211 are clamped with the connecting end seat 11, the shape of the cross section of the convex ring 211 is a right trapezoid, the connecting end 21 can be gradually locked when gradually clamped into the connecting end seat 21, the stability of the connection is ensured, the connecting end 21 is further provided with a reinforcing structure 24, the reinforcing structure 24 is arranged in the connecting convex ring 21, the reinforcing structure 24 is a reinforcing mesh structure, the tensile strength of the connecting end 21 can be strengthened, deformation of the connecting end 21 caused by excessive pressure during installation is avoided, so that the water leakage is caused, the pipe joint 2 is provided with a limiting step 22, the limiting step 22 is arranged close to the connecting end 21, the limiting step 22 abuts against the end of the connecting end seat 11, and is used for limiting the movement distance of the connecting end 21, so that the connecting end 21 is too deep into the connecting pipe 1, the bending towards the axis of the connecting pipe 1 is avoided, and the resistance ring is caused. The pipe joint 2 is further provided with a sealing ring 23, the sealing ring 23 is arranged between the limiting step 22 and the connecting end 21, the pipe structure 2 and the connecting pipe 1 can be sealed, and the water leakage is avoided.
[0025] [Example 2]
[0026] As Figure 3 and Figure 4As shown, a plastic pipe joint includes a connecting pipe 1, a pipe joint 2, an elastic clamping ring 4, a locking nut 5 and an upper connecting pipe 3. The connecting pipe 1 is a tee pipe. The pipe joint 2 is installed on the pipe through a threaded connection. The pipe joint 2 is clamped and installed at both ends of the connecting pipe 1. A connecting end 21 is provided on the pipe joint 2. A connecting end seat 11 is provided at both ends of the connecting pipe 1. The connecting end 21 is clamped on the connecting end seat 11, and the shape of the connecting end seat 11 matches the shape of the connecting end 21, so as to realize the quick connection of the two sections of pipe, ensure the stability of the connection, and ensure that there is no need for tooling and fixtures for alignment. It can also ensure that there is no obstruction to flow after installation. The connecting pipe 1 An upper through pipe 13 is provided on the upper portion, and the upper through pipe 13 is provided between the two connecting end seats 11. An external thread structure 131 and a fixed step 132 are provided on the upper through pipe 13. The fixed step 132 is provided on one side of the external thread structure 131. The elastic snap ring 4 is sleeved on the external thread structure 131 and abuts against the fixed step 132. The upper connecting pipe 3 is provided with an internal thread structure 31. The locking nut 5 is fixed to the end of the upper connecting pipe 3 and is close to the internal thread structure 31. The locking nut 5 and the internal thread structure 31 are threadedly connected to the external thread structure 131, and the elastic snap ring 4 is clamped with the locking nut 5, thereby locking and fixing the upper connecting pipe 3 and the upper through pipe 13 to prevent loosening and disengagement.
[0027] A plurality of convex rings 211 are equidistantly arranged on the connecting end 21, and the plurality of convex rings 211 are clamped with the connecting end seat 11. The cross-section of the convex ring 211 is in the shape of a right-angled trapezoid, which can gradually lock the connecting end 21 when it is gradually clamped into the connecting end seat 21 to ensure the stability of the connection. A reinforcing structure 24 is also provided on the connecting end 21. The reinforcing structure 24 is arranged in the connecting convex ring 21. The reinforcing structure 24 is a reinforced mesh structure, which can enhance the tensile strength of the connecting end 21 to avoid deformation of the connecting end 21 due to excessive pressure during installation, thereby causing water leakage. A limiting step 22 is provided on the pipe joint 2. The limiting step 22 is arranged close to the connecting end 21. The limiting step 22 abuts against the end of the connecting end seat 11 to limit the moving distance of the connecting end 21 to avoid the connecting end 21 from being too deep into the connecting pipe 1, causing bending toward the axis of the connecting pipe 1, resulting in the generation of a resistance ring. The pipe joint 2 is further provided with a sealing ring 23 , which is arranged between the limiting step 22 and the connecting end 21 , and can form a seal between the pipe structure 2 and the connecting pipe 1 to avoid water leakage.
[0028] The locking nut 5 includes a threaded connection end 51 and a fitting end 52. The threaded connection end 51 is threadedly connected to the external thread structure 131. The elastic retaining ring 4 includes a limiting ring 41, a wedge ring 42 and a slot 43. The limiting ring 41 is fixed on the wedge ring 42. The slot 43 passes through the limiting ring 41 and the wedge ring 42. The wedge ring 42 abuts against the fitting end 52. The shape of the fitting end 52 matches the outer surface of the wedge ring 42. The outer surface of the wedge ring 42 is provided with a conical inclined surface.
[0029] The wedge ring 42 is pressed by the lock nut 5, and radial pressure is generated under the action of the pressing force, and further radial shrinkage deformation is generated, the width of the slot 43 is changed, the radial pressure between the wedge ring 42 and the external thread structure 131 is increased, the friction between the wedge ring 42 and the external thread structure 131 is greatly increased, and the loosening of the wedge ring 42 is prevented; the contact surface of the taper of the wedge ring 42 and the taper of the lock nut 5 generates large friction under the action of the pressing force, and the loosening of the lock nut 5 is prevented, so that the loosening of the external thread structure 131 is effectively prevented, and the long-term loosening prevention effect is achieved.
[0030] The above-mentioned embodiments are only preferred examples of the present application, and do not limit the scope of the present application, so equivalent changes or modifications made according to the structure, features and principles described in the patent application range of the present application should be included in the patent application range of the present application.
Claims
1. A plastic pipe joint, characterized in that It includes a connecting pipe and a pipe joint, the pipe joint is installed on the pipe through a threaded connection, the pipe joint is clamped and installed at both ends of the connecting pipe, the pipe joint is provided with a connecting end head, and both ends of the connecting pipe are provided with a connecting end seat, the connecting end head is clamped on the connecting end seat, and the shape of the connecting end seat matches the shape of the connecting end head, and multiple convex rings are equidistantly provided on the connecting end head, and the multiple convex rings are clamped with the connecting end seat.
2. The plastic pipe joint according to claim 1, characterized in that: The cross section of the convex ring is in the shape of a right-angled trapezoid.
3. The plastic pipe joint of claim 2, wherein, The connecting end is further provided with a reinforcement structure, and the reinforcement structure is arranged inside the connecting end.
4. The plastic pipe joint of claim 3, wherein, The reinforcement structure is a reinforcement mesh structure.
5. The plastic pipe joint of claim 4, wherein, A limiting step is provided on the pipe joint, and the limiting step is provided close to the connecting end.
6. The plastic pipe joint of claim 5, wherein, The pipe joint is further provided with a sealing ring, which is arranged between the limiting step and the connecting end.
7. A plastic pipe joint according to any one of claims 1-6, characterised in that It further includes an elastic snap ring, a locking nut and an upper connecting pipe. The connecting pipe is provided with an upper through pipe, and the upper through pipe is provided between two connecting end seats. The upper through pipe is provided with an external thread structure, and the elastic snap ring is sleeved on the external thread structure. The locking nut and the upper connecting pipe are threadedly connected to the external thread structure, and the elastic snap ring is clamped with the locking nut.
8. The plastic pipe joint of claim 7, wherein, The locking nut includes a threaded connection end and a fitting end. The threaded connection end is threadedly connected to the external thread structure, and the shape of the fitting end matches the outer surface of the elastic retaining ring.
9. The plastic pipe joint of claim 8, wherein, The elastic snap ring includes a limiting ring and a wedge ring. The limiting ring is fixed on the wedge ring, and the wedge ring abuts against the engaging end.
10. The plastic pipe joint of claim 9, wherein, The elastic clamping ring further includes a slot passing through the limiting ring and the wedge ring.