A precast concrete U-shaped channel for frost heave protection

Abstract

This utility model relates to the field of water diversion channel technology, specifically a frost-resistant precast concrete U-shaped channel, including a water diversion channel. The water diversion channel includes a channel body, a socket on the left side of the channel body, and a spigot on the right side of the channel body. The channel body, socket, and spigot are integrally cast. The flow channel cross-section of the water diversion channel is semi-elliptical, and a steel reinforcement skeleton is installed inside the water diversion channel. This utility model, through the steel reinforcement skeleton designed to correspond to the shape of the water diversion channel, can effectively enhance the tensile strength of the concrete structure of the water diversion channel. Stably placed rubber strips ensure that the connection gaps of the water diversion channel remain tight within a certain deformation range, effectively preventing frost damage to the connection points due to water leakage. Alignment of the spigot holes and symmetrical pins allows for precise alignment of the water diversion channel, effectively preventing damage to parts of the water diversion channel during assembly due to impact.

Description

Technical Field

[0001] This utility model relates to the field of water diversion channel technology, specifically to a precast concrete U-shaped channel resistant to frost heave. Background Technology

[0002] Irrigation canals, as vital facilities for water transport, require excellent seepage prevention. Precast concrete U-shaped channels, with their superior seepage prevention properties, effectively reduce water loss along the transport route and improve water resource utilization efficiency, and are therefore widely used.

[0003] Existing devices mainly use prefabricated components with socket structures to assemble irrigation canals. Existing technologies are largely similar to a prefabricated concrete component for irrigation canals. The structure disclosed in CN201447693U includes a component body, a connecting groove at one end of the component body, a protrusion at the other end of the component body, and a shoulder plate with two capping plates on the outer wall of the component body; both the component body and the connecting groove are U-shaped. This utility model component is cast in one piece of concrete, making it lightweight and easy to transport, especially suitable for laying irrigation canals in mountainous farmland. However, there are still areas for improvement in this device.

[0004] Existing systems primarily utilize one-time concrete casting without a reinforcing steel frame, resulting in lower tensile strength in some precast water diversion canal components. This makes them susceptible to damage from frost heave. Furthermore, the lack of sealing components at the joints of some precast canal components allows gaps to form after deformation, leading to leakage and frost heave damage at these joints. Finally, the use of socket joints for some precast canal components makes them prone to damage during assembly, hindering rapid and precise connection and reducing the system's efficiency and practicality. Therefore, to address these issues, a frost-heave-resistant precast concrete U-shaped channel is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a frost-resistant precast concrete U-shaped channel to address the problems mentioned in the background section regarding the low tensile strength of precast water diversion channel components and the lack of sealing components at the joints, which makes some precast water diversion channel components susceptible to damage due to frost heave. Additionally, the water diversion channel is prone to damage from impacts during assembly.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a frost-resistant precast concrete U-shaped channel, including a water diversion channel, the water diversion channel including a channel body, a socket on the left side of the channel body, and a spout on the right side of the channel body, the channel body, the socket and the spout being integrally cast, the flow channel cross-section of the water diversion channel being semi-elliptical, and a steel reinforcement skeleton being installed inside the water diversion channel.

[0007] Preferably, the steel reinforcement cage includes eight through bars, which are evenly distributed in two rows inside the bottom of the water diversion channel, and the outer walls of the through bars are evenly distributed with stirrups.

[0008] Preferably, the outer wall of the stirrup is provided with a first distribution steel bar, and a pair of second distribution steel bars are provided below the outer wall of the two through steel bars at the bottom center.

[0009] Preferably, a slot is provided on the right side of the inner wall of the socket, a mounting strip is placed inside the slot, and a rubber strip is fixedly connected to the left side of the mounting strip.

[0010] Preferably, the inner wall of the mounting strip is provided with a first slot, and a mounting strip is placed inside the first slot. The inner wall of the slot is provided with a second slot corresponding to the mounting strip on the right side.

[0011] Preferably, the rubber strip has left-leaning bevels on both sides, and the right side of the inner wall of the socket and the right side of the insertion port have bevels corresponding to the rubber strip.

[0012] Preferably, the bottom of the water diversion channel is provided with alignment holes on both sides, and a pin can be inserted into the alignment hole. A rubber separator is fixedly connected between a pair of pins.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model utilizes a semi-elliptical flow channel cross-section, allowing the ice layer in the water diversion channel to slide upwards along the inner wall of the channel after expansion, effectively preventing damage to the inner wall of the channel due to ice expansion. Simultaneously, the steel reinforcement frame designed to correspond with the shape of the water diversion channel effectively enhances the tensile strength of the concrete structure, improving the stability and practicality of the device.

[0015] 2. This utility model uses a stably installed rubber strip to keep the joints of the water diversion channel tight within a certain deformation range, effectively preventing the joints of the water diversion channel from freezing and swelling due to water leakage, thus improving the sealing performance and practicality of the device.

[0016] 3. This utility model can accurately align the water diversion channel by using aligned insertion holes and symmetrical pins, effectively avoiding damage to some water diversion channels during assembly, facilitating quick and easy connection of the water diversion channel, and improving the convenience and practicality of the device. Attached Figure Description

[0017] Figure 1 This is a front side perspective view of the U-shaped channel connection structure of this utility model;

[0018] Figure 2This is a front side perspective view of the U-shaped channel structure of this utility model;

[0019] Figure 3 This is a front side perspective view of the internal steel reinforcement structure of the U-shaped channel of this utility model;

[0020] Figure 4 This is an exploded perspective view of the structure of the U-shaped channel docking assembly of this utility model.

[0021] Figure 5 This is a front side perspective view of the structure of the connector of this utility model.

[0022] In the diagram: 1. Water diversion channel; 11. Channel body; 12. Socket; 13. Spigot; 21. Through reinforcement; 22. Stirrup; 23. First distribution reinforcement; 24. Second distribution reinforcement; 31. Slot; 32. Connecting strip; 33. Rubber strip; 34. First slot; 35. Locking strip; 36. Second slot; 41. Alignment hole; 42. Pin; 43. Rubber separator block. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-5 One embodiment provided by this utility model:

[0025] A frost-resistant precast concrete U-shaped channel includes a water diversion channel 1, which includes a channel body 11. The channel body 11 has a socket 12 on the left side and a spout 13 on the right side. The channel body 11, the socket 12 and the spout 13 are integrally cast. The flow channel cross section of the water diversion channel 1 is semi-elliptical. A steel reinforcement skeleton is installed inside the water diversion channel 1.

[0026] The reinforcing steel cage includes eight continuous reinforcing bars 21, arranged in two rows evenly inside the bottom of the water diversion channel 1. Stirrups 22 are evenly distributed on the outer wall of each continuous reinforcing bar 21. This design allows the continuous reinforcing bars 21, in conjunction with the stirrups 22, to effectively increase the tensile strength of the bottom of the water diversion channel 1. The outer wall of the stirrups 22 is provided with first distribution reinforcing bars 23, and a pair of second distribution reinforcing bars 24 are provided below the outer wall of the two middle continuous reinforcing bars 21 at the bottom. This design allows the first distribution reinforcing bars 23, in conjunction with the second distribution reinforcing bars 24, to effectively increase the tensile strength of the sides of the water diversion channel 1.

[0027] A slot 31 is provided on the right side of the inner wall of the socket 12. A connecting strip 32 is placed inside the slot 31, and a rubber strip 33 is fixedly connected to the left side of the connecting strip 32. This design allows the rubber strip 33 to be inserted and positioned within the socket 12, accommodating deformation of the water channel 1. A first retaining groove 34 is provided on the inner wall of the connecting strip 32, and a retaining strip 35 is placed inside the first retaining groove 34. A second retaining groove 36, corresponding to the retaining strip 35, is provided on the right side of the inner wall of the slot 31. This design allows the retaining strip 35 to fix the connecting strip 32 and the rubber strip 33 inside the socket 12, effectively preventing leakage at the connection point due to displacement of the rubber strip 33. A left-leaning bevel is provided on both sides of the rubber strip 33, and a corresponding bevel is provided on the right side of the inner wall of the socket 12 and the right side of the insertion port 13. This design effectively increases the sealing cross-section of the rubber strip 33.

[0028] Alignment holes 41 are provided on both sides of the bottom of the water diversion channel 1. Pins 42 can be inserted into the alignment holes 41, and a rubber separator 43 is fixedly connected between a pair of pins 42. Through this design, the pins 42 can be positioned and connected to the adjacent water diversion channel 1 in conjunction with the rubber separator 43.

[0029] When it is necessary to connect the water diversion channel 1, the construction worker uses the rubber strip 33 to drive the connecting strip 32 into the slot 31, and then inserts the locking strip 35 into the first locking groove 34 and the second locking groove 36, thus completing the assembly of the rubber strip 33. The construction worker uses the rubber separator block 43 to drive the right-side pin 42 into the alignment hole 41 on the left side of the water diversion channel 1, and then fits the right-side alignment hole 41 of the next water diversion channel 1 onto the left-side pin 42, so that the insertion port 13 of the next water diversion channel 1 is placed in the socket 12 of the previous water diversion channel 1, realizing the connection operation of the water diversion channels 1.

[0030] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A frost-resistant precast concrete U-shaped channel, comprising an irrigation canal (1), characterized in that: The water diversion channel (1) includes a channel body (11), a receiving port (12) is provided on the left side of the channel body (11), and a spout (13) is provided on the right side of the channel body (11). The channel body (11), the socket (12) and the spout (13) are cast in one piece. The flow channel of the water diversion channel (1) has a semi-elliptical cross section and a steel reinforcement skeleton is installed inside the water diversion channel (1).

2. The anti-frosting precast concrete U-shaped channel according to claim 1, characterized in that: The steel reinforcement cage includes eight through bars (21), which are evenly distributed in two rows inside the bottom of the water diversion channel (1). The outer wall of the through bars (21) is evenly distributed with stirrups (22).

3. The anti-frosting precast concrete U-shaped channel according to claim 2, characterized in that: The outer wall of the stirrup (22) is provided with a first distribution steel bar (23), and a pair of second distribution steel bars (24) are provided below the outer wall of the two through bars (21) at the bottom middle.

4. The anti-frosting precast concrete U-chamber according to claim 1, characterized in that: A slot (31) is provided on the right side of the inner wall of the socket (12). A mounting strip (32) is placed inside the slot (31). A rubber strip (33) is fixedly connected to the left side of the mounting strip (32).

5. The anti-frosting precast concrete U-chamber according to claim 4, characterized in that: The inner wall of the mounting strip (32) is provided with a first slot (34), and a card strip (35) is placed inside the first slot (34). The right side of the inner wall of the slot (31) is provided with a second slot (36) corresponding to the card strip (35).

6. The anti-frosting precast concrete U-channel according to claim 4, characterized in that: The rubber strip (33) has a left-leaning bevel on both sides, and the right side of the inner wall of the socket (12) and the right side of the insertion port (13) have bevels corresponding to the rubber strip (33).

7. The anti-frosting precast concrete U-channel according to claim 1, characterized in that: The water diversion channel (1) has alignment holes (41) on both sides of the bottom of the channel. A pin (42) can be inserted into the alignment hole (41), and a rubber separator (43) is fixedly connected between a pair of pins (42).

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