Reducing type pipe joint
By designing the insertion surface and snap-fit protrusion structure of the variable diameter pipe fitting, the problem of poor versatility of existing pipe fittings is solved, achieving stable connection and sealing of pipes of different diameters and simplifying the construction process.
Patent Information
- Application Number
- CN202520862502.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-04-30
AI Technical Summary
Existing pipe fittings have poor versatility, making it difficult to adapt to pipes of different diameters, and the connections are not stable or sealed enough.
A variable diameter pipe fitting is designed, which features two radially symmetrical inclined insertion surfaces on the main body, with snap-fit protrusions on the insertion surfaces. Pipes are connected by insertion and snap-fit, and the elastic deformation of the snap-fit protrusions and adhesive bonding ensure stability and versatility.
It enables stable connection of pipes of different diameters, improves the versatility and sealing of pipe fittings, and simplifies the construction process.
Smart Images
Figure CN223909063U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to pipeline technical field relates to a variable diameter pipe joint. BACKGROUND
[0002] In the field of pipeline engineering, pipe joint is indispensable connecting piece, specifically, it plays the purpose of connecting two adjacent pipes, realizing the smoothness of internal flow channel in pipeline system.
[0003] The connecting mode of pipe joint and pipe in prior art is various, but the joint of pipe joint is generally changeable, specifically, the common pipe joint is equal diameter pipe joint with equal outer diameter from one end to another end, and the pipe is connected by socket mode or screwing mode, but the use of this pipe joint has great inconvenience, because a considerable part of pipes used in pipeline system has different nominal diameter, so for pipes with different diameter, pipe joint with matching interface needs to be provided for use, and the versatility is poor. SUMMARY
[0004] The utility model discloses a variable diameter pipe joint to solve the technical problem of improving the versatility of pipe joint.
[0005] The utility model discloses a variable diameter pipe joint, including two ends through the body of setting, its characterized in that, the body has two plug -in surfaces along the circumference, each plug -in surface is from the body middle part to the body end portion and inclines to the cone surface shape inward, and two plug -in surfaces are along the body radial symmetry setting, each plug -in surface has a plurality of clamping convex parts, and a plurality of clamping convex parts are along the axial direction of the body interval setting.
[0006] The tapering pipe joint differs from the prior art in that two insertion surfaces are arranged on the outer wall of the body in the circumferential direction, the two insertion surfaces are symmetrically arranged along the radial direction of the body, and the two insertion surfaces are both inwardly inclined from the middle part of the body to the end part of the body, so that the insertion surfaces are beveled, and the shape of the body is conical. In addition, a clamping protrusion is arranged on each insertion surface, thereby forming the tapering pipe joint. When assembling, the two ends of the pipe joint can be inserted into the pipes to be connected in the form of insertion, thereby achieving the socket connection with the pipes. On this basis, the inner wall of the pipe is pressed against the clamping protrusion by hard extrusion after the body is inserted into the pipe port to a certain depth, so that the clamping protrusion is elastically deformed to a certain extent, and the clamping protrusion and the inner wall of the pipe port are tightly abutted, thereby ensuring the connection stability of the pipe joint and the pipe. Since the clamping protrusions arranged on the insertion surfaces are arranged at different positions along the axial direction of the body, the clamping protrusions at different positions and the inner walls of the pipe ports with different diameters can be clamped when the body and the pipes are connected, thereby ensuring the versatility of the tapering pipe joint. This type of pipe joint can also prompt the construction personnel, because the positions of the clamping protrusions are fixed, the construction personnel can quickly determine the diameter of the pipe to be connected by the clamping protrusion relied on during socket connection, thereby facilitating subsequent construction and assembly. In addition, it is worth noting that, in order to ensure the stability and sealing of the connection, it is obviously not enough to perform socket clamping by the present application, and therefore, glue is often applied on the outer wall of the body and the inner wall of the pipe to avoid the above defects.
[0007] In the tapering pipe joint, the clamping protrusions on each insertion surface are arranged in groups, each group has a plurality of clamping protrusions, the clamping protrusions in the same group are arranged at intervals in the circumferential direction of the body, and the clamping protrusions in different groups are arranged at intervals in the axial direction of the body. By this arrangement, the versatility of the body for connecting pipes with different diameters is ensured, and the connection stability of the body and the pipe is ensured by the clamping cooperation of the clamping protrusions in the same group and the inner wall of the pipe.
[0008] In the tapering pipe joint, each clamping protrusion is inclined towards the middle part of the body. In this way, the pipe can be smoothly inserted into place under the guidance of the outer wall of the clamping protrusion during socket connection.
[0009] In the variable-diameter pipe joint, the cross-sectional profiles of the clamping protrusions along the axial section of the body are all arc-shaped. Thus, the smoothness of the socket is further ensured, and damage to the outer wall of the clamping protrusion and the inner wall of the pipe port caused by excessive interference is avoided.
[0010] In the variable-diameter pipe joint, the body has a water inlet cavity communicating with the water inlet of the body and a water outlet cavity communicating with the water outlet of the body, the water inlet cavity and the water outlet cavity are connected, the inner peripheral wall of the water inlet cavity and the inner peripheral wall of the water outlet cavity are arranged radially symmetrically with respect to the body, the inner peripheral wall of the water inlet cavity is arranged parallel to one of the insertion faces, and the inner peripheral wall of the water outlet cavity is arranged parallel to the other insertion face. Through this arrangement, the variable-diameter pipe joint has higher flow stabilizing effect, i.e., a spindle-shaped cavity with a large middle part and small ends is formed in the body by cooperation of the water inlet cavity and the water outlet cavity, the space in the middle part is used to store fluid with excessively high flow rate, and the flow rate of the fluid output outward through the outlet is ensured to be more stable.
[0011] Compared with the prior art, the variable-diameter pipe joint has the following advantages:
[0012] The insertion faces at both ends of the body can be connected with pipes of different diameters to realize socket connection, and the clamping protrusions on the body outside the insertion faces and the pipes are clamped to ensure firm connection and the versatility of the variable-diameter pipe joint. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 is a structural schematic view of the variable-diameter pipe joint.
[0014] Figure 2 is an axial sectional view of the variable-diameter pipe joint.
[0015] Figure 3 is Figure 2 is an enlarged view of part A in FIG.
[0016] In the drawings, 1 is the body, 11 is the insertion face, 12 is the clamping protrusion, 13 is the water inlet cavity, and 14 is the water outlet cavity. DETAILED DESCRIPTION
[0017] The following is a specific embodiment of the utility model and further describes the technical scheme of the utility model in combination with the drawings, but the utility model is not limited to these embodiments.
[0018] As Figure 1 and Figure 2As shown, the variable reducing pipe joint comprises a body 1 in strip shape with both ends penetratingly arranged, the body 1 has two insertion surfaces 11 in the circumferential direction, the two insertion surfaces 11 are symmetrically arranged along the radial direction of the body 1, and each insertion surface 11 is inclined inwardly from the middle part of the body 1 to the end part of the body 1 in a conical surface shape, a clamping protrusion 12 protruding from the outer wall is integrally formed on each insertion surface 11, a plurality of clamping protrusions 12 on each insertion surface 11 are divided into a plurality of groups, the plurality of groups of clamping protrusions 12 are arranged at intervals along the axial direction of the body 1, the same group of clamping protrusions 12 has a plurality of clamping protrusions 12, and the plurality of clamping protrusions 12 in the same group are distributed at intervals along the circumferential direction of the body 1, in addition, the width of the plurality of groups of clamping protrusions 12 on each insertion surface 11 gradually increases from the end part of the body 1 to the middle part of the body 1, that is, the clamping protrusions 12 closer to the end part are narrower, and the clamping protrusions 12 closer to the middle part are wider, through this arrangement, the combination ratio of each clamping protrusion 12 and the inside of the pipe is always kept consistent for pipes of different diameters, ensuring the stability of the socket connection.
[0019] In combination Figure 3 Each clamping protrusion 12 is inclined towards the middle part of the body 1, and the cross-sectional profile of each clamping protrusion 12 along the axial direction of the body 1 is arc-shaped, one end of the body 1 is a water inlet, the other end is a water outlet, the body 1 has a water inlet cavity 13 communicating with the water inlet and a water outlet cavity 14 communicating with the water outlet, and the water inlet cavity 13 and the water outlet cavity 14 are in communication, the inner peripheral wall of the water inlet cavity 13 and the inner peripheral wall of the water outlet cavity 14 are symmetrically arranged along the radial direction of the body 1, the inner peripheral wall of the water inlet cavity 13 is parallel to one of the insertion surfaces 11, and the inner peripheral wall of the water outlet cavity 14 is parallel to the other insertion surface 11.
[0020] Construction principle: before assembly, the operator applies glue on the end part of the body 1 (i.e. on the two insertion surfaces 11) and the inner wall of the pipe port to be connected, then completes the socket connection of the body 1 and the pipe port by means of hard extrusion, abuts one of the plurality of groups of clamping protrusions 12 corresponding in position against the inner wall of the pipe port, and bonds the two by means of glue, and after the glue solidifies, the assembly is completed.
[0021] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, without deviating from the spirit of the present application or exceeding the scope defined by the appended claims.
[0022] Although the terms body 1, insertion surface 11, clamping protrusion 12, water inlet cavity 13, water outlet cavity 14 and the like are used more frequently herein, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of the utility model; it is against the spirit of the utility model to interpret them as any kind of additional limitation.
Claims
1. A reducing pipe fitting, comprising a body (1) extending through both ends, characterized in that, The body (1) has two insertion surfaces (11) along the circumferential direction. Each insertion surface (11) is inclined inward from the middle of the body (1) to the end of the body (1) in a conical shape. The two insertion surfaces (11) are arranged symmetrically along the radial direction of the body (1). Each insertion surface (11) has a plurality of snap-fit protrusions (12), and the plurality of snap-fit protrusions (12) are spaced apart along the axial direction of the body (1).
2. The reducing pipe fitting according to claim 1, characterized in that, The plurality of snap-fit protrusions (12) on each of the plug-in surfaces (11) are divided into several groups, and there are several snap-fit protrusions (12) in the same group. The plurality of snap-fit protrusions (12) in the same group are spaced apart circumferentially along the body (1), and the plurality of groups of snap-fit protrusions (12) are spaced apart axially along the body (1).
3. The reducing pipe fitting according to claim 1 or 2, characterized in that, Each of the snap-fit protrusions (12) is inclined toward the center of the body (1).
4. The reducing pipe fitting according to claim 3, characterized in that, The cross-sectional profile of each of the snap-fit protrusions (12) cut along the axial direction of the body (1) is arc-shaped.
5. The reducing pipe fitting according to claim 4, characterized in that, The body (1) has an inlet cavity (13) connected to the inlet of the body (1) and an outlet cavity (14) connected to the outlet of the body (1). The inlet cavity (13) and the outlet cavity (14) are connected. The inner peripheral walls of the inlet cavity (13) and the outlet cavity (14) are symmetrically arranged radially along the body (1). The inner peripheral wall of the inlet cavity (13) is parallel to one of the insertion surfaces (11), and the inner peripheral wall of the outlet cavity (14) is parallel to the other insertion surface (11).