Anti-freezing drain pipe

Abstract

The utility model relates to the technical field of drainage pipes, and discloses an anti-freezing drainage pipe which comprises an inner pipe body, an outer pipe body and an outer pipe body, the heat preservation assembly comprises a silica gel layer fixedly installed on the outer surface of the inner pipe body, an outer pipe body fixedly installed on the outer surface of the silica gel layer, heat preservation cotton wrapping the outer surface of the outer pipe body, a main interlayer and an auxiliary interlayer, wherein the main interlayer and the auxiliary interlayer are arranged on the outer surface of the heat preservation cotton. According to the anti-freezing drainage pipe, the heat preservation assembly and the inner pipe body are arranged, the silica gel layer is arranged between the outer pipe body and the inner pipe body, the low-temperature-resistant elasticity of silica gel is utilized, ice expansion stress is buffered, the performance of the inner pipe body is improved, and then the heat preservation cotton wound on the outer surface of the outer pipe body is wrapped by the main interlayer and the auxiliary interlayer; the influence of sunlight and rain on the heat preservation cotton can be reduced, the service life of the heat preservation cotton can be prolonged, and the overall anti-freezing heat preservation performance is further improved.

Description

Technical Field

[0001] This utility model relates to the field of drainage pipe technology, specifically to an antifreeze drainage pipe. Background Technology

[0002] Drainage pipes are made primarily from sanitary-grade polyvinyl chloride resin, with the addition of appropriate amounts of stabilizers, lubricants, fillers, and colorants. They are produced through extrusion molding using a plastic extruder and injection molding using an injection molding machine, followed by cooling, curing, shaping, inspection, and packaging processes to complete the production of pipes and fittings.

[0003] Outdoor drainage pipes are wrapped with a layer of insulation cotton to improve the overall frost resistance of the pipe. However, the insulation effect provided by a single layer of insulation cotton is limited, and traditional insulation cotton layers are mostly exposed to the outside, making them susceptible to damage from sun and rain, which reduces their service life and greatly reduces the insulation effect. Therefore, we have proposed an antifreeze drainage pipe to solve the above problems. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides an antifreeze drainage pipe, which solves the problems mentioned in the background.

[0005] This utility model provides the following technical solution: an antifreeze drainage pipe, comprising: an inner pipe body, an insulation component provided on the outer surface of the inner pipe body, the insulation component comprising a silicone layer fixedly installed on the outer surface of the inner pipe body, an outer pipe body fixedly installed on the outer surface of the silicone layer, insulation cotton wrapping the outer surface of the outer pipe body, and a main interlayer and a secondary interlayer provided on the outer surface of the insulation cotton, a positioning post fixedly installed on the side of the secondary interlayer adjacent to the main interlayer, and a threaded hole also provided on the side of the secondary interlayer adjacent to the main interlayer, and a connecting component provided on the main interlayer; the connecting component comprises a column rotatably installed on the main interlayer, a fixing nut fixedly installed on the inner cavity side wall of the main interlayer, and a toothed pulley set provided in the inner cavity of the main interlayer, a drive shaft fixedly installed on the side of the column, a square rod fixedly installed on the side of the drive shaft, a threaded post slidably connected to the square rod, the threaded post being threadedly connected to the fixing nut, and the part of the threaded post passing through the fixing nut also engaging with the threaded hole.

[0006] Preferably, the main interlayer is provided with an auxiliary insertion hole that can cooperate with the positioning post.

[0007] Preferably, the column has a hexagonal insertion hole on the top surface of the main interlayer, and the hexagonal insertion hole can be used with a hexagonal wrench.

[0008] Preferably, the drive shafts are connected by a toothed pulley set for synchronous belt transmission.

[0009] Preferably, a stop block is fixedly installed at the end of the square rod, and the stop block is located inside the threaded column.

[0010] Preferably, the threaded post has a through hole for the square rod to pass through, and the size of the through hole is smaller than the size of the stop.

[0011] Preferably, the central axis of the outer tube coincides with the central axis of the inner tube, and the outer tube is fixedly connected to the inner tube through a silicone layer.

[0012] Preferably, after the main interlayer and the secondary interlayer are spliced ​​together by positioning pins, the axis of the threaded hole can coincide with the axis of the threaded pin.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This antifreeze drainage pipe is composed of an insulation component and an inner pipe body. A silicone layer is set between the outer and inner pipe bodies. The low-temperature elasticity of the silicone buffers the stress of ice expansion and improves the performance of the inner pipe body. The insulation cotton wrapped around the outer surface of the outer pipe body is then wrapped with a main interlayer and a secondary interlayer. This can reduce the impact of sun and rain on the insulation cotton, extend the service life of the insulation cotton, and further improve the overall antifreeze and insulation performance.

[0015] 2. This antifreeze drainage pipe, by setting the connecting component on the main interlayer, allows the user to simultaneously adjust the state of multiple threaded posts and screw them into the threaded holes of the secondary interlayer. This not only ensures a tight connection between the main and secondary interlayers but also simplifies the operation steps of the overall structure and improves the actual usage efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is an exploded view of the sandwich structure of this utility model;

[0018] Figure 3 for Figure 1 Enlarged schematic diagram of the structure at point A in the middle;

[0019] Figure 4 This is a cross-sectional schematic diagram of part of the structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the toothed belt pulley assembly structure of this utility model.

[0021] In the diagram: 1. Inner tube; 2. Insulation component; 21. Main interlayer; 22. Insulation cotton; 23. Outer tube; 24. Silicone layer; 25. Secondary interlayer; 26. Positioning post; 27. Threaded hole; 3. Connecting component; 31. Column; 32. Drive shaft; 33. Square rod; 34. Threaded post; 35. Fixing nut; 36. Stop block; 37. Toothed pulley assembly. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5 An antifreeze drainage pipe includes: an inner pipe body 1, an insulation component 2 disposed on the outer surface of the inner pipe body 1, the insulation component 2 including a silicone layer 24 fixedly installed on the outer surface of the inner pipe body 1, an outer pipe body 23 fixedly installed on the outer surface of the silicone layer 24, insulation cotton 22 wrapping the outer surface of the outer pipe body 23, and a main interlayer 21 and a secondary interlayer 25 disposed on the outer surface of the insulation cotton 22. A positioning post 26 is fixedly installed on the side of the secondary interlayer 25 adjacent to the main interlayer 21, and a threaded hole 27 is also provided on the side of the secondary interlayer 25 adjacent to the main interlayer 21. The main interlayer 21 is also provided with... A connecting component 3 is provided; the main interlayer 21 has an auxiliary insertion hole that can cooperate with the positioning post 26. The central axis of the outer tube 23 coincides with the central axis of the inner tube 1, and the outer tube 23 is fixedly connected to the inner tube 1 through the silicone layer 24. After the main interlayer 21 and the secondary interlayer 25 are spliced ​​together by the positioning post 26, the axis of the threaded hole 27 can coincide with the axis of the threaded post 34. The positioning post 26 can make the main interlayer 21 and the secondary interlayer 25 quickly spliced ​​together, thereby ensuring that the subsequent threaded post 34 is screwed into the threaded hole 27 to fasten the main interlayer 21 and the secondary interlayer 25 together.

[0024] The connecting assembly 3 includes a column 31 rotatably mounted on the main interlayer 21, a fixing nut 35 fixedly installed on the inner wall of the main interlayer 21, and a toothed pulley set 37 disposed in the inner cavity of the main interlayer 21. A drive shaft 32 is fixedly mounted on the side of the column 31, and a square rod 33 is fixedly mounted on the side of the drive shaft 32. A threaded column 34 is slidably connected to the square rod 33. The threaded column 34 is threadedly connected to the fixing nut 35, and the portion of the threaded column 34 passing through the fixing nut 35 can also mate with the threaded hole 27. A hexagonal insertion hole is provided on the top surface of the main interlayer 21, and the hexagonal insertion hole can be used with a hexagonal wrench. The drive shaft 32 is driven synchronously by a toothed pulley set 37. A stop block 36 is fixedly installed at the end of the square rod 33, and the stop block 36 is located inside the threaded post 34. The threaded post 34 has a through hole for the square rod 33 to pass through, and the size of the through hole is smaller than the size of the stop block 36. The stop block 36 can prevent the threaded post 34 from slipping out excessively, thereby ensuring the stability of the overall structural design.

[0025] Working principle: The inner pipe 1 and the outer pipe 23 form a composite water pipe structure. A silicone layer 24 is placed between the inner pipe 1 and the outer pipe 23. Insulation cotton 22 for heat preservation and antifreeze treatment is wrapped around the outer surface of the outer pipe 23. Finally, the main interlayer 21 and the secondary interlayer 25 are positioned at the outer surface of the insulation cotton 22 by the positioning post 26 on the secondary interlayer 25, thus wrapping the insulation cotton 22. Simultaneously, when the main interlayer 21 and the secondary interlayer 25 are connected, a hex wrench is inserted into the post 31, causing the post 31 to rotate on the main interlayer 21. At this time, the drive shaft 32 fixed to the bottom of the post 31 drives the square rod 33 fixedly connected to it... The square rod 33 is slidably connected to a threaded post 34, which is threadedly connected to a fixing nut 35 fixed inside the main interlayer 21. Therefore, when the square rod 33 rotates, it can drive the threaded post 34 to rotate, thereby causing the threaded post 34 to screw into the threaded hole 27 of the secondary interlayer 25, thus fixing the main interlayer 21 and the secondary interlayer 25 through the threaded engagement between the threaded post 34 and the threaded hole 27. The drive shaft 32 is connected to the drive shaft 32 by a toothed pulley set 37 to achieve synchronous belt drive. Therefore, the threaded post 34 inside the main interlayer 21 can be screwed out synchronously and then screwed into the secondary interlayer 25 to complete the connection with the main interlayer 21.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A frost-resistant drainage pipe, characterized in that, include: The inner tube (1) has an insulation component (2) on its outer surface. The insulation component (2) includes a silicone layer (24) fixedly installed on the outer surface of the inner tube (1), an outer tube (23) fixedly installed on the outer surface of the silicone layer (24), insulation cotton (22) wrapping the outer surface of the outer tube (23), and a main interlayer (21) and a secondary interlayer (25) on the outer surface of the insulation cotton (22). The secondary interlayer (25) is fixedly installed with a positioning post (26) on the side adjacent to the main interlayer (21), and a threaded hole (27) is also opened on the side adjacent to the main interlayer (21). The main interlayer (21) is also provided with a connecting component (3). The connecting assembly (3) includes a column (31) rotatably mounted on the main interlayer (21), a fixing nut (35) fixedly mounted on the inner wall of the main interlayer (21), and a toothed pulley assembly (37) disposed in the inner cavity of the main interlayer (21). A drive shaft (32) is fixedly mounted on the side of the column (31), and a square rod (33) is fixedly mounted on the side of the drive shaft (32). A threaded column (34) is slidably connected to the square rod (33). The threaded column (34) is threadedly connected to the fixing nut (35), and the part of the threaded column (34) passing through the fixing nut (35) can also cooperate with the threaded hole (27).

2. The antifreeze drainage pipe according to claim 1, characterized in that, The main interlayer (21) is provided with an auxiliary insertion hole that can cooperate with the positioning post (26).

3. The antifreeze drainage pipe according to claim 1, characterized in that, The column (31) has a hexagonal socket on the top surface of the main interlayer (21), and the hexagonal socket can be used with a hexagonal wrench.

4. The antifreeze drainage pipe according to claim 1, characterized in that, The drive shaft (32) is driven by a toothed pulley set (37) synchronous belt.

5. The antifreeze drainage pipe according to claim 1, characterized in that, A stop (36) is fixedly installed at the end of the square rod (33), and the stop (36) is located inside the threaded column (34).

6. The antifreeze drainage pipe according to claim 5, characterized in that, The threaded post (34) has a through hole for the square rod (33) to pass through, and the size of the through hole is smaller than the size of the stop (36).

7. The antifreeze drainage pipe according to claim 1, characterized in that, The central axis of the outer tube (23) coincides with the central axis of the inner tube (1), and the outer tube (23) is fixedly connected to the inner tube (1) through the silicone layer (24).

8. The antifreeze drainage pipe according to claim 1, characterized in that, After the main interlayer (21) and the secondary interlayer (25) are spliced ​​together by the positioning post (26), the axis of the threaded hole (27) can coincide with the axis of the threaded post (34).

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