Inside-coupling visual pipe

Abstract

The present application relates to the field of pipe material, and particularly to an inner clamping visual pipe material. The pipe material body is provided with a socket segment and a socket segment at the axial ends, respectively. The inner wall of the socket segment is provided with a clamping tooth. One end of the clamping tooth is fixed to the inner wall of the socket segment, and the other end is a free end extending towards the axis. At least one elastic part is provided on the clamping tooth. The socket segment is provided with a through hole at a position corresponding to the clamping tooth. The outer wall of the socket segment is provided with a convex part and a concave part in the axial direction from the port. The distance from the top of the convex part to the central axis is greater than the distance from the free end of the clamping tooth to the central axis. When the adjacent socket segment and socket segment move towards each other, the convex part can push the clamping tooth to be elastically expanded at the elastic part. After release, the clamping tooth is automatically reset and clamped into the concave part. The present application provides an inner clamping visual pipe material to solve the problem of direct observation and many parts during the pipe material splicing process.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of pipe material, in particular to an inner clamping visual pipe material. BACKGROUND

[0002] Corrugated pipes are widely used in the field of drainage due to their good pressure resistance, low engineering cost, light weight, and convenient construction. In order to facilitate transportation, the length of each corrugated pipe cannot be too long, and the connection is carried out after transportation to the construction site. The existing connection mode of corrugated pipes is generally plug-in type or flange connection type. The traditional pipe connection mode cannot resist axial tension, and has more parts, is troublesome to install, and has high engineering cost.

[0003] In addition, the Chinese utility model patent with the application number CN201921861728.8 discloses a pipe assembly with a anti-dropping sealing structure to overcome the above-mentioned shortcomings, which comprises a spigot, a socket, and an anti-dropping piece for preventing rebound. The anti-dropping piece is an internal anti-dropping type, that is, the elastic anti-dropping body of the anti-dropping piece is clamped in the groove of the inner circumferential wall of the socket to prevent axial rebound. This internal anti-dropping installation structure has the following shortcomings: 1. During the pipe splicing process, internal installation cannot be accurately positioned, and the naked eye cannot be observed, which is prone to excessive force and causes damage to the pipe. 2. The anti-dropping piece is installed separately, and there are more parts. SUMMARY

[0004] The purpose of the present application is to overcome the above-mentioned shortcomings and provide an inner clamping visual pipe material to solve the problems of direct observation during pipe splicing and too many parts.

[0005] The present application is achieved by the following technical scheme: an inner clamping visual pipe material, characterized in that it comprises a pipe body, a spigot section and a socket section are respectively arranged at the axial ends of the pipe body, the socket section is used to receive the spigot section of an adjacent pipe, the inner wall of the socket section is provided with a clamping tooth, one end of the clamping tooth is fixed to the inner wall of the socket section, and the other end is a free end extending towards the axis, and at least one elastic part is arranged on the clamping tooth, and a through hole is arranged on the socket section corresponding to the clamping tooth.

[0006] The outer wall of the spigot section is provided with a convex part and a recessed part in sequence in the axial direction from the port, the distance from the top of the convex part to the central axis is greater than the distance from the free end of the clamping tooth to the central axis, and when the adjacent spigot section and socket section move towards each other, the convex part can push the clamping tooth to be elastically expanded at the elastic part, and after release, the clamping tooth automatically resets and is clamped into the recessed part.

[0007] Further, the part surrounded by the through hole is bent to form the clamping tooth.

[0008] Further, the clamping tooth is inclined to the side away from the port of the socket section.

[0009] Further, the location of the spigot section close to the port is also provided with an outwardly protruding annular rib.

[0010] Further, at least one corrugated section for stretching buffering is arranged in the spigot section, and the corrugated section is located on the side of the click away from the port.

[0011] Further, the number of clicks is multiple and is arranged in the circumferential direction of the spigot section, the protruding part is an annular protrusion, and the recessed part is an annular groove.

[0012] Further, the number of protruding parts and recessed parts on the spigot section is multiple, and a sealing ring is arranged in one recessed part of the spigot section, so as to form a seal when the spigot section and the adjacent spigot section are connected.

[0013] Further, the pipe body is provided with alternating annular peaks and annular valleys, the top of the annular peak is provided with an outwardly protruding annular small protrusion, and the inside of the annular peak and the annular small protrusion forms an annular hollow cavity, and the shape of the hollow cavity corresponds to the shape of the annular peak and the annular small protrusion.

[0014] Since the inner clickable visible pipe is provided with elastic clicks in the inside of the spigot section, the clicks can be expanded by the protruding part on the adjacent pipe spigot section, and then clicked into the recessed part of the spigot section to form an anti-disengagement structure, wherein the clicks are directly arranged on the inner wall of the spigot section, without the need for separately installing an anti-disengagement component, fewer parts, and convenient installation. And the spigot section is provided with a through hole at a position corresponding to the click, and the installer can directly observe whether the pipe is installed in place through the through hole, which can effectively prevent excessive force from causing damage to the pipe. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a three-dimensional structure schematic diagram of an embodiment of the present application;

[0016] Figure 2 is a schematic diagram of the internal structure of an embodiment of the present application;

[0017] Figure 3 is a schematic diagram of the combined state of an embodiment of the present application;

[0018] Figure 4 is a schematic diagram of the use state of an embodiment of the present application Figure 1 ;

[0019] Figure 5 is a schematic diagram of the use state of an embodiment of the present application Figure 2 .

[0020] Labeling explanation: 1-Socket section, 11-Protrusion, 12-Recess, 2-Socket section, 21-Clamping tooth, 22-Through hole, 23-Annular rib, 24-Corrugated section, 3-Sealing ring, 4-Pipe body, 41-Annular crest, 411-Annular small protrusion, 412-Annular hollow cavity, 42-Annular trough, 5-Weight. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings:

[0022] This embodiment relates to an internally snap-fit ​​visible tubing, such as... Figures 1-3 As shown, the pipe includes a pipe body 4 and a spigot section 1 and a socket section 2 disposed at both ends of the pipe body 4. The inner diameter of the socket section 2 is larger than the outer diameter of the spigot section 1. During the splicing of two adjacent pipes, the spigot section 1 is inserted into the socket section 2 to form a joint between the two pipes.

[0023] The radial cross-sections of the spigot section 1, the socket section 2, and the pipe body 4 can be made into various shapes, such as circular, quadrilateral, and pentagonal, etc., as a preferred method. Figure 1 As shown, both the spigot section 1 and the socket section 2 are circular.

[0024] like Figures 2-3 As shown, a retaining tooth 21 is provided on the inner wall of the socket section 2. One end of the retaining tooth 21 is fixed to the inner wall of the socket section 2, and the other end is a free end extending towards the axis. The retaining tooth 21 has at least one elastic portion. A protrusion 11 and a recess 12 are sequentially arranged along its axial direction from the port. The distance from the top of the protrusion 11 to the central axis is greater than the distance from the free end of the retaining tooth 21 to its central axis. During the connection of two adjacent pipes, one pipe remains fixed, and the spigot section 1 of the other pipe is inserted into the socket section 2 of the adjacent pipe. The protrusion 11 on the spigot section 1 can push the retaining tooth 21, causing it to be elastically opened at the elastic portion. After installation, the retaining tooth 21 on the socket section 2 automatically resets and engages with the recess 12 of the spigot section 1, forming an anti-detachment structure. The socket section 2 has a through hole 22 at the position corresponding to the retaining tooth 21. The installer can directly observe through the through hole 22 whether the pipe is installed in place.

[0025] Because the internally clamping visible pipe has elastic locking teeth 21 inside the socket section 2, these locking teeth 21 can be opened by the protrusions 11 on the adjacent pipe spigot section 1, and then snap into the recesses 12 of the spigot section 1 to form an anti-detachment structure. The locking teeth 21 are directly set on the inner wall of the socket section 2, eliminating the need for separate anti-detachment components, resulting in fewer parts and easier installation. Furthermore, the socket section 2 has through holes 22 at positions corresponding to the locking teeth 21, allowing installers to directly observe whether the pipe is installed correctly, effectively preventing damage to the pipe due to excessive force.

[0026] To facilitate the manufacturing and forming of the tooth 21, such as Figures 1-3 As shown, the portion surrounded by the through hole 22 is bent to form the retaining tooth 21. The specific manufacturing process is as follows: First, the socket section 2 is formed, then the edge line where the through hole 22 is located is cut on the socket section 2, and the axial side is retained to connect with the socket section 2. Then, it is heated to press down the portion surrounded by the through hole 22 to form the retaining tooth 21, and the hollowed-out part forms the through hole 22.

[0027] As a further improvement, such as Figures 1-3 As shown, the retaining tooth 21 is inclined towards the port side away from the socket section 2. That is, the angle α between the retaining tooth 21 and the inner wall of the socket section 2 is 0° < α < 90°. Because the retaining tooth 21 is inclined towards the port side away from the socket section 2, it is easier for the retaining tooth 21 to be pushed open by the protrusion 11.

[0028] As a further improvement, such as Figures 1-3 As shown, the socket section 2 near the port is also provided with an outwardly protruding annular rib 23. The annular rib 23 serves to strengthen the structure.

[0029] As a further improvement, such as Figures 1-3 As shown, the socket section 2 is provided with at least one corrugated section 24 with alternating concave and convex sections along the axial direction to serve as a tensile buffer. The corrugated section 24 is located on the side of the retaining tooth 21 away from the port. In this way, when the pipe buried underground undergoes geological settlement, the corrugated section 24 is stretched (i.e., straightened) first, thereby dispersing the axial tensile force and protecting the retaining tooth 213 from being broken.

[0030] To ensure the sealing of pipe connections, such as Figures 2-3 As shown, the number of protrusions 11 and recesses 12 on the socket section 1 is multiple. A sealing ring 3 is installed in one of the recesses 12 of the socket section 1 to form a seal when the socket section 1 is connected to the adjacent socket section 2.

[0031] As a further improvement, such as Figures 2-3 As shown, the pipe body 4 is provided with alternating annular peaks 41 and annular troughs 42. The top of each annular peak 41 has an outwardly protruding annular small protrusion 411. Annular hollow cavities 412 are formed inside the annular peaks 41 and annular small protrusions 411, and the shape of the hollow cavity corresponds to the outer shape of the annular peaks 41 and annular small protrusions 411. The annular small protrusions 411 increase compressive strength and improve impact resistance. Figures 4-5As shown, the top of the annular wave crest 41 is provided with an outwardly convex annular small protrusion 411. During the conveying process, when the surface is impacted by the heavy object 5, the annular small protrusion 411 will first be concave into the hollow cavity, thereby playing an energy-absorbing role, thereby preventing the pipe from being further damaged.

[0032] As shown, as a preferred mode, the number of the clamping teeth 21 is multiple and is arranged in the circumferential direction of the socket section 2, the protruding part 11 is an annular protrusion, and the recessed part 12 is an annular groove. Figures 1-3

[0033] Although the present application is illustrated and described with specific embodiments and alternatives, it is understood that various changes and modifications can be made without departing from the spirit and scope of the present application. Therefore, it is understood that the present application is not limited to the specific embodiments described and illustrated, but only by the claims and their equivalents.​

Claims

1. An internally-coupled visual tubing, characterized by: The utility model relates to a pipe body (4) is provided with spigot section (1) and socket section (2) respectively at the axial both ends of pipe body (4), socket section (2) is used for spigot section (1) of adjacent pipe, the inner wall of socket section (2) is provided with catch (21), one end of catch (21) is fixed with the inner wall of socket section (2), and the other end is free end and extends to the direction close to the axis, and catch (21) has at least one elastic part, socket section (2) is provided with through hole (22) at the position corresponding with catch (21). The outer wall of spigot section (1) is provided with convex part (11) and recessed part (12) in turn from the port to the axial direction, the distance from the top of convex part (11) to the central axis is greater than the distance from the free end of catch (21) to the central axis, when adjacent spigot section (1) and socket section (2) move towards each other, convex part (11) can push catch (21) and make it be elastically opened at the elastic part, after release, catch (21) is automatically reset and is clamped into recessed part (12). The part surrounded by through hole (22) is bent to form catch (21). Socket section (2) is also provided with annular rib (23) that protrudes outward near the port. Socket section (2) is provided with at least one corrugated section (24) for stretching buffering effect along the axial concave-convex alternation, and the corrugated section (24) is located on the side of catch (21) away from the port.

2. The internally-crimped, visible plumbing tube of claim 1, wherein: Catch (21) is inclined to the side of the port away from socket section (2).

3. The internally-crimped, visible plumbing tube of claim 1, wherein: The number of catch (21) is multiple and is arranged along the circumferential direction of socket section (2), convex part (11) is annular convex, and recessed part (12) is annular groove.

4. The internally-crimped, visible plumbing tube of claim 3, wherein: The number of convex part (11) and recessed part (12) on spigot section (1) is multiple, and sealing ring (3) is installed in one recessed part (12) of spigot section (1) to form sealing when spigot section (1) and adjacent socket section (2) are connected.

5. The internally-crimped, visible plumbing tube of claim 1, wherein: Pipe body (4) is provided with annular wave crest (41) and annular wave trough (42) that are concave-convex alternation, the top of annular wave crest (41) is provided with annular small convex (411) that protrudes outward, and the inside of annular wave crest (41) and annular small convex (411) forms annular hollow cavity (412), and the shape of hollow cavity (412) corresponds with the shape of annular wave crest (41) and annular small convex (411).

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