Socket type double-wall corrugated pipe

Abstract

The utility model provides a socket type double-wall corrugated pipe which comprises a pipe body, one end of the pipe body is provided with an insertion pipe, the other end of the pipe body is provided with a sleeve, the outer wall of the insertion pipe is provided with a concave insertion channel, the inner wall of the sleeve is provided with a lock hook matched with the concave insertion channel, and the sleeve is rotationally connected with the insertion pipe. A pit is formed in the side, away from the opening portion, of the corrugated ring, close to the opening portion, of the insertion pipe, the opening portion of the insertion pipe is sleeved with a T-shaped sealing sleeve, and the T-shaped sealing sleeve is in sealing fit with the inner wall of the sleeve pipe. According to the utility model, the T-shaped sealing sleeve and the concave pit are arranged, and then the sleeve and the pipe body are rotationally arranged, so that the two corrugated pipes are convenient to screw and disassemble after being inserted end to end, and the sleeve and the insertion pipe are connected by virtue of the concave pit and the T-shaped sealing sleeve, so that a torsion loosening function is realized; compared with the prior art, the quick plug-in connector has the advantage of quick disassembly during screwing while meeting the quick plug-in function.

Description

Technical Field

[0001] The utility model relates to the technical field of corrugated pipes, in particular to a socket-and-spigot type double-wall corrugated pipe. Background Art

[0002] At present, the double-wall corrugated pipe socket, spigot and sealing rubber ring on the market assist each other to form a connection and sealing method for the pipeline. Although this rubber ring sealed socket design has the unique property of being easy to install, it cannot achieve the axial tensile strength of threaded connection, linear socket pipe connection, flange connection and threaded connection. At present, the axial connection strength of the socket of the rubber ring type socket connection, that is, the separation tensile force of the socket, is almost entirely achieved by the friction between the rubber ring and the socket. During construction, the uneven and curved buried pipe trench, coupled with the installation technical proficiency of the installers, and the pipeline connection length of tens of thousands of meters will lead to unstable socket connection, insufficient connection depth, excessive torsion angle and other reasons, which will lead to pipeline leakage and seepage.

[0003] The utility model with announcement number CN218441193U proposes a self-locking socket-and-spigot double-wall corrugated pipe, which belongs to the technical field of corrugated pipes and includes a pipe body, one end of which is provided with a socket, and the other end of which is a spigot, the socket is provided with a self-locking component, and the spigot is provided with a self-locking channel adapted to the self-locking component. By setting the self-locking channel, the self-locking component can pass through to ensure the subsequent self-locking. At the same time, after self-locking, it can also be unlocked through the self-locking channel.

[0004] However, the above-mentioned prior art still has the following deficiencies when in use: when unlocking, one of the bellows needs to be twisted so that the self-locking part is located in the self-locking channel before the two bellows can be separated. However, since the bellows are in a bent state, it is difficult to twist the bellows, or it is inconvenient to twist, and thus it is difficult to separate the two adjacent bellows. Therefore, there is still the deficiency of great difficulty in separation.

[0005] To this end, the utility model provides a socket-and-spigot type double-wall corrugated pipe. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a socket-type double-wall corrugated pipe to solve the problems raised in the above background technology. The utility model has the advantages of convenient assembly and disassembly of multiple corrugated pipes, and also has the advantage of low manufacturing difficulty.

[0007] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical solutions: a socket-and-spigot type double-wall corrugated pipe, comprising a pipe body, a spigot is provided at one end of the pipe body and a sleeve is provided at the other end, the outer wall of the spigot is provided with a recessed insertion channel, the inner wall of the sleeve is provided with a locking hook adapted to the recessed insertion channel, the sleeve and the pipe body are rotatably connected, a pit is provided on the side of the corrugated ring near the mouth of the spigot facing away from the mouth, the mouth of the spigot is provided with a T-shaped sealing sleeve, and the T-shaped sealing sleeve is sealed with the inner wall of the sleeve.

[0008] Furthermore, one end of the sleeve is fixedly connected to a short-circuit sleeve, and the other end of the tube body is fixedly provided with a connecting pipe sleeved in the short-circuit sleeve, and a sealing rubber sleeve is provided between the connecting pipe and the short-circuit sleeve.

[0009] Furthermore, a T-shaped limiting tube is inserted into the mouth of the connecting tube, the large end of the T-shaped limiting tube is located in the sleeve and the outer diameter of the large end is larger than the outer diameter of the short sleeve.

[0010] Furthermore, the T-shaped limiting tube and the connecting tube are of interference fit structure, and the outer wall where the T-shaped limiting tube and the connecting tube are connected is of pagoda-shaped structure.

[0011] Furthermore, one side of the pit extends to the outer edge of the corrugated ring.

[0012] Furthermore, the T-shaped sealing sleeve and the inserting tube are of interference fit plug-in structure, and the large end thereof is interference fit with the inner peripheral wall of the sleeve.

[0013] Furthermore, the large end of the T-shaped sealing sleeve is a hollow structure.

[0014] The beneficial effects of the utility model are as follows:

[0015] 1. The utility model provides a T-shaped sealing sleeve and a pit, and then cooperates with the rotation setting of the sleeve and the tube body, so that the two corrugated tubes can be easily disassembled by twisting after being plugged end to end. Moreover, the setting of the pit and the T-shaped sealing sleeve enables the connection between the sleeve and the inserting tube to have the function of twisting looseness. Compared with the existing technology, it has the advantages of quick twisting and quick disassembly while meeting the quick plug-in function.

[0016] 2. The present invention facilitates the assembly of the sleeve and the tube body by providing a T-shaped limit tube and a short sleeve. That is to say, the sleeve and the tube body can be separately injection molded and manufactured, and then assembled through the T-shaped limit tube, which has the advantage of reducing the difficulty of manufacturing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a socket-and-spigot type double-wall corrugated pipe of the utility model;

[0018] Figure 2 for Figure 1Schematic diagram of the explosion;

[0019] Figure 3 This is the main view of a socket-and-spigot type double-wall corrugated pipe of the utility model during splicing application.

[0020] In the figure: 1. pipe body; 11. insert tube; 111. recessed insert channel; 112. corrugated ring; 1121. pit; 12. sleeve; 121. locking hook; 122. short-circuit sleeve; 13. connecting pipe; 131. T-type limit tube; 2. T-type sealing sleeve; 3. sealing rubber sleeve. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] See also Figures 1 to 3 The utility model provides a technical solution: a socket-and-spigot type double-wall corrugated pipe, comprising a pipe body 1, a plug 11 being provided at one end of the pipe body 1 and a sleeve 12 being provided at the other end, the outer wall of the plug 11 being provided with a recessed insertion channel 111, the inner wall of the sleeve 12 being provided with a locking hook 121 adapted to the recessed insertion channel 111, when the two corrugated pipes are plugged together end to end, the locking hook 121 enters along the recessed insertion channel 111, at which time the sleeve 12 is sleeved on the outside of the plug 11 on the other corrugated pipe, and then one of the corrugated pipes is twisted so that the locking hook 121 enters between the two adjacent corrugated rings 112, at which time the plugging of the two corrugated pipes is realized.

[0023] Furthermore, the sleeve 12 is rotatably connected to the tube body 1, and the two bellows can be plugged and disassembled by simply rotating the sleeve 12, which reduces the difficulty of plugging and disassembling. A pit 1121 is provided on the side of the corrugated ring 112 near the mouth of the inserting tube 11 away from the mouth. The function of the pit 1121 is to limit the locking hook 121 to prevent the sleeve 12 from rotating and loosening relative to the inserting tube 11 with which it is plugged. The mouth of the inserting tube 11 is provided with a T-shaped sealing sleeve 2, and the T-shaped sealing sleeve 2 and the sleeve The inner wall of the tube 12 is sealed, and the function of the T-shaped sealing sleeve 2 is to create a reverse elastic thrust between the sleeve 12 and the insert tube 11 when the sleeve 12 and the insert tube 11 are plugged in. That is to say, when the sleeve 12 and the insert tube 11 are plugged in, the large end of the T-shaped sealing sleeve 2 will be squeezed, and at this time the pit 1121 will be against the free end of the locking hook 121. This setting can not only effectively relax, but also improve the sealing degree of the plug-in. The large end of the T-shaped sealing sleeve 2 is a hollow structure, which increases the axial elastic force of the T-shaped sealing sleeve 2.

[0024] Specifically, one end of the sleeve 12 is fixedly connected to a short-circuit sleeve 122, and the other end of the tube body 1 is fixedly provided with a connecting tube 13 sleeved in the short-circuit sleeve 122. A sealing rubber sleeve 3 is provided between the connecting tube 13 and the short-circuit sleeve 122. The sealing rubber sleeve 3 has an interference fit with the connecting tube 13 and the short-circuit sleeve 122. It should be noted that when the sleeve 12 is manually rotated with force, the sleeve 12 and the connecting tube 13 are in a state of damped rotational motion.

[0025] Furthermore, a T-shaped stopper 131 is inserted into the mouth of the connecting tube 13. The large end of the T-shaped stopper 131 is located in the sleeve 12 and its large end outer diameter is larger than the outer diameter of the short-circuit sleeve 122. The setting of the T-shaped stopper 131 has the function of preventing the short-circuit sleeve 122 from loosening from the connecting tube 13. Preferably, the T-shaped stopper 131 and the connecting tube 13 are an interference fit structure. The outer wall of the T-shaped stopper 131 and the connecting tube 13 is a pagoda-shaped structure. The setting of the pagoda-shaped structure further squeezes the sealing rubber sleeve 3, improves the sealing degree of the connection between the sleeve 12 and the pipe body 1, and effectively prevents the sleeve 12 from loosening. Moreover, this setting can facilitate the separate production of the sleeve 12, the pipe body 1 and the T-shaped stopper 131, and then assemble them into a shape.

[0026] In this embodiment, one side of the pit 1121 extends to the outer edge of the corrugated ring 112. This arrangement facilitates demoulding when the pit 1121 is injection molded.

[0027] In this embodiment, the T-shaped sealing sleeve 2 and the inserting tube 11 are of interference fit plug-in structure, and the large end thereof is interference fit with the inner peripheral wall of the sleeve 12. This arrangement can improve the sealing degree after the inserting tube 11 and the sleeve 12 are plugged in.

[0028] Working principle: when two adjacent corrugated tubes need to be separated, manually hold the sleeve 12 and then twist it. At this time, the locking hook 121 may be separated from the pit 1121. When the locking hook 121 enters the recessed insertion channel 111, the sleeve 12 and the insertion tube 11 are pulled in reverse to separate the two connected corrugated tubes. Moreover, when the sleeve 12 is twisted, the tube body 1 will not generate a large resistance to the rotation of the sleeve 12, thereby making the bellows splitting operation more convenient. Similarly, when two corrugated tubes are docked, the above-mentioned method can be used in reverse operation.

[0029] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A spigot-and-socket double-wall corrugated pipe, comprising a pipe body (1), one end of the pipe body (1) being provided with a spigot (11) and the other end being provided with a sleeve (12), the outer wall of the spigot (11) being provided with a recessed insertion channel (111), the inner wall of the sleeve (12) being provided with a locking hook (121) adapted to the recessed insertion channel (111), characterized in that: The sleeve (12) and the tube body (1) are rotatably connected, and a pit (1121) is provided on the side of the corrugated ring (112) near the mouth of the inserting tube (11) facing away from the mouth. The mouth of the inserting tube (11) is provided with a T-shaped sealing sleeve (2), and the T-shaped sealing sleeve (2) is sealed and matched with the inner wall of the sleeve (12).

2. The socket-and-spigot double-wall corrugated pipe according to claim 1, characterized in that: One end of the sleeve (12) is fixedly connected to a short-circuit sleeve (122), and the other end of the tube body (1) is fixedly provided with a connecting tube (13) sleeved in the short-circuit sleeve (122), and a sealing rubber sleeve (3) is provided between the connecting tube (13) and the short-circuit sleeve (122).

3. The socket-and-spigot double-wall corrugated pipe according to claim 2, characterized in that: A T-shaped limiting tube (131) is inserted into the mouth of the connecting tube (13), the large end of the T-shaped limiting tube (131) is located in the sleeve (12) and the outer diameter of the large end is larger than the outer diameter of the short-circuit sleeve (122).

4. The socket-and-spigot double-wall corrugated pipe according to claim 3, characterized in that: The T-shaped limiting tube (131) and the connecting tube (13) are of interference fit structure, and the outer wall of the T-shaped limiting tube (131) and the connecting tube (13) where they are plugged together is of pagoda-shaped structure.

5. The socket-and-spigot type double-wall corrugated pipe according to claim 1, characterized in that: One side of the recess (1121) extends to the outer edge of the corrugated ring (112).

6. The socket-and-spigot type double-wall corrugated pipe according to claim 1, characterized in that: The T-shaped sealing sleeve (2) and the inserting tube (11) are of an interference fit plug-in structure, and the large end thereof is interference fit with the inner peripheral wall of the sleeve (12).

7. The socket-and-spigot type double-wall corrugated pipe according to claim 1, characterized in that: The large end of the T-shaped sealing sleeve (2) is a hollow structure.

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