Concrete drainage ditch prefabricated part

By using the dovetail block and dovetail groove interlocking and locking structure, the problem of uneven connection of precast concrete drainage ditch components is solved, achieving tight connection and convenient cleaning, thus improving drainage effect.

CN224161174UActive Publication Date: 2026-04-24HUANGHE ENG BUREAU HENAN
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUANGHE ENG BUREAU HENAN
Filing Date
2025-04-03
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing precast concrete drainage ditch components are prone to uneven connections, excessively large gaps, and difficulty in sealing during use, and are also difficult to clean impurities, thus affecting drainage performance.

Method used

It uses a dovetail block and dovetail groove structure for connection, and is equipped with a snap-fit ​​assembly and a U-shaped filter groove. The connection is ensured by the insertion of the dovetail block and the dovetail groove and the engagement of the snap-fit ​​groove; the U-shaped filter groove is detachable for easy cleaning of solid waste.

Benefits of technology

It improves the tightness of the prefabricated component connections, reduces connection gaps, enhances drainage performance, facilitates the cleaning of solid waste, and improves drainage efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224161174U_ABST
    Figure CN224161174U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of drainage ditches, and discloses a concrete drainage ditch prefabricated part which comprises a first prefabricated part body and a second prefabricated part body, and upper dovetail tenon blocks are fixedly connected to the positions, close to the top ends, of the middles of the two sides of the first prefabricated part body. Lower dovetail tenon blocks are fixedly connected to the positions, close to the upper dovetail tenon blocks, of the middles of the two sides of the first prefabricated part body, and cross-shaped clamping blocks are fixedly connected to the positions, close to the two ends, of the two sides of the first prefabricated part body. The upper dovetail tenon block and the lower dovetail tenon block on one side of the first prefabricated part body are inserted into the upper dovetail groove and the lower dovetail groove in one side of the second prefabricated part body, meanwhile, the two cross-shaped clamping blocks on one side of the first prefabricated part body are clamped in the cross-shaped clamping grooves, and therefore the gap between the first prefabricated part body and the second prefabricated part body is reduced when the first prefabricated part body and the second prefabricated part body are placed side by side for use; and the drainage effect of the first prefabricated part body and the second prefabricated part body is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of drainage ditch technology, and more specifically to a precast concrete drainage ditch component. Background Technology

[0002] Precast concrete drainage ditch components refer to drainage ditch parts that are prefabricated in a factory or on-site to have a specific shape and size. The main production method involves preparing a mixed slurry from the materials, injecting it into a mold, and allowing it to solidify and take shape. For example, cement, fine sand, and water are mixed to form cement mortar, or other materials are mixed or blended into a slurry, with auxiliary materials added to form a mixed slurry. This cement mortar or mixed slurry is then poured into a mold to solidify and shape the component. Different raw materials result in different quality drainage ditches. Currently, concrete residue is unavoidable at construction sites, especially in the hoppers of concrete pump trucks. Traditionally, the concrete in the pump truck hopper is unloaded on-site and dumped into a garbage dump along with other surplus concrete. This not only wastes materials but also incurs economic losses such as labor costs and garbage disposal fees, and further contributes to environmental pollution.

[0003] The shortcomings of existing technology: In the use of ordinary precast concrete drainage ditch components, misalignment between two precast components often occurs, resulting in excessively large joint gaps that are difficult to seal. Furthermore, the difficulty in connecting the components can lead to instability in the axial direction of the drainage ditch and make it difficult to clean impurities from the precast concrete drainage ditch components, thus affecting the drainage effect of the precast drainage ditch components.

[0004] Therefore, there is a need to provide a precast concrete drainage ditch component to solve the problems mentioned above. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a precast concrete drainage ditch component to solve the problems existing in the background art.

[0006] This utility model provides the following technical solution: a precast concrete drainage ditch component, comprising a precast component body one and a precast component body two. Upper dovetail blocks are fixedly connected to the middle of both sides of the precast component body one near the top. Lower dovetail blocks are fixedly connected to the middle of both sides of the precast component body one near the upper dovetail blocks. Cross-shaped locking blocks are fixedly connected to both sides of the precast component body one near both ends. Upper dovetail grooves are formed on the middle of both sides of the precast component body two near the top. Lower dovetail grooves are formed on the middle of both sides of the precast component body two near the upper dovetail grooves. Cross-shaped locking grooves are formed on both sides of the precast component body two near both ends. U-shaped filter grooves are movably fitted onto the inner walls of both the precast component body one and the precast component body two. Buckling assemblies are provided on both sides of the U-shaped filter grooves. Each buckling assembly includes a top plate, and an installation block is fixedly connected to the middle of the bottom end of the top plate.

[0007] Preferably, a first rotating plate is movably sleeved on one side of the outer wall of the mounting block, and a second rotating plate is movably sleeved on the other side of the outer wall of the mounting block.

[0008] Preferably, the bottom ends of the first rotating plate and the second rotating plate are fitted together and movably connected, and a limiting post is movably connected at the middle of the bottom ends of the first rotating plate and the second rotating plate.

[0009] Preferably, handles are provided on both sides of the outer wall of the precast body one and the precast body two.

[0010] Preferably, pressure plates are fixedly connected to the outer walls of both the first and second rotating plates, springs are fixedly connected to the bottom ends of both pressure plates, and bases are fixedly connected to the bottom ends of both springs.

[0011] Preferably, the base has a placement groove in the middle, and the inner wall of the placement groove is fixedly connected to both ends of the limiting post.

[0012] Preferably, bolts are fixedly connected to the four corners of the top plate, the top of the top plate is fixedly connected to the inner wall of one side of the U-shaped filter groove by four bolts, and the bottom of the base is fixedly connected to the top of the prefabricated body one and the prefabricated body two by four bolts.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] 1. This utility model, by providing an upper dovetail block and a lower dovetail block, facilitates the connection between precast body 1 and precast body 2 when they are placed side by side. To ensure a tight connection between precast body 1 and precast body 2, the upper and lower dovetail blocks on one side of precast body 1 are inserted into the upper and lower dovetail grooves on one side of precast body 2. At the same time, two cross-shaped locking blocks on one side of precast body 1 are locked into the cross-shaped locking grooves, thereby reducing the gap between precast body 1 and precast body 2 when they are placed side by side and improving the drainage effect of precast body 1 and precast body 2.

[0015] 2. This utility model, by incorporating a snap-fit ​​assembly and a U-shaped filter groove, allows for easy cleaning of solid waste accumulated within precast body one and precast body two. Simply disassemble the U-shaped filter groove, pull it upwards to move the mounting block at the bottom of the top plate upwards, and then rotate the pressure plates on both sides of the first and second rotating plates downwards to compress the springs. Under the movable engagement of the limiting post, the bottom ends of the first and second rotating plates rotate within the placement groove, facilitating the removal of the mounting block and thus completing the disassembly of the U-shaped filter groove. This allows for timely cleaning of solid waste accumulated within precast body one and precast body two, improving drainage 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 overall structure of this utility model.

[0018] Figure 3 This is a schematic diagram of two structural parts of the prefabricated body of this utility model.

[0019] Figure 4 This is a schematic diagram of the buckle assembly of this utility model.

[0020] The attached figures are labeled as follows: 1. Precast body one; 2. Handle; 3. Buckle assembly; 301. Top plate; 302. Bolt; 303. Pressure plate; 304. Spring; 305. Base; 306. Placement slot; 307. First rotating plate; 308. Limiting post; 309. Second rotating plate; 310. Mounting block; 4. U-shaped filter channel; 5. Precast body two; 6. Cross block; 7. Upper dovetail block; 8. Lower dovetail block; 9. Cross slot; 10. Lower dovetail groove; 11. Upper dovetail groove. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The precast concrete drainage ditch components involved in this utility model are not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Specific Implementation Example 1

[0023] Please see Figure 1-3 This utility model is a precast concrete drainage ditch component, including a precast body 1 and a precast body 2 5. Upper dovetail blocks 7 are fixedly connected to the middle of both sides of the precast body 1 near the top. Lower dovetail blocks 8 are fixedly connected to the middle of both sides of the precast body 1 near the upper dovetail blocks 7. Cross-shaped locking blocks 6 are fixedly connected to both sides of the precast body 1 near both ends. Upper dovetail grooves 11 are formed on the middle of both sides of the precast body 2 5 near the top. Lower dovetail grooves 10 are formed on the middle of both sides of the precast body 2 5 near the upper dovetail grooves 11. Cross-shaped locking grooves 9 are formed on both sides of the precast body 2 5 near both ends. U-shaped filter grooves 4 are movably fitted onto the inner walls of both the precast body 1 and the precast body 2 5. Handles 2 are formed on both sides of the outer walls of both the precast body 1 and the precast body 2 5.

[0024] Specifically: When prefabricated body 1 and prefabricated body 2 5 are placed side by side, in order to ensure a tight connection between prefabricated body 1 and prefabricated body 2 5, the upper dovetail block 7 and lower dovetail block 8 on one side of prefabricated body 1 are inserted into the upper dovetail groove 11 and lower dovetail groove 10 on one side of prefabricated body 2 5, and at the same time, the two cross-shaped locking blocks 6 on one side of prefabricated body 1 are locked into the cross-shaped locking groove 9. Specific Implementation Example 2

[0026] Please see Figure 1 and Figure 4Based on the first specific embodiment, both sides of the U-shaped filter channel 4 are provided with snap-fit ​​components 3. The snap-fit ​​components 3 include a top plate 301, and a mounting block 310 is fixedly connected to the middle of the bottom end of the top plate 301. A first rotating plate 307 is movably sleeved on one side of the outer wall of the mounting block 310, and a second rotating plate 309 is movably sleeved on the other side of the outer wall of the mounting block 310. The bottom ends of the first rotating plate 307 and the second rotating plate 309 are mutually fitted and movably sleeved. A limit post 308 is movably sleeved at the middle of the bottom ends of the first rotating plate 307 and the second rotating plate 309. Pressure plates 303 are fixedly connected to the outer walls. Springs 304 are fixedly connected to the bottom ends of the two pressure plates 303. Bases 305 are fixedly connected to the bottom ends of the two springs 304. A placement groove 306 is provided in the middle of the base 305. The inner wall of the placement groove 306 is fixedly connected to both ends of the limiting post 308. Bolts 302 are fixedly connected to the four corners of the top plate 301. The top of the top plate 301 is fixedly connected to the inner wall of one side of the U-shaped filter groove 4 by four bolts 302. The bottom of the base 305 is fixedly connected to the top of the precast body 1 and the precast body 2 5 by four bolts 302.

[0027] Specifically: When cleaning the solid waste accumulated inside the precast body 1 and precast body 2 5, it is only necessary to remove the U-shaped filter groove 4. Pulling the U-shaped filter groove 4 upward will cause the mounting block 310 at the bottom of the top plate 301 to move out and upward, thereby causing the pressure plates 303 on both sides of the first rotating plate 307 and the second rotating plate 309 to rotate downward and compress the spring 304. Under the movable connection of the limiting post 308, the bottom ends of the first rotating plate 307 and the second rotating plate 309 can rotate in the placement groove 306.

[0028] The working principle of this utility model is as follows: When precast body 1 and precast body 2 5 are placed side by side, in order to ensure a tight connection between precast body 1 and precast body 2 5, the upper dovetail block 7 and lower dovetail block 8 on one side of precast body 1 are inserted into the upper dovetail groove 11 and lower dovetail groove 10 on one side of precast body 2 5. At the same time, the two cross-shaped locking blocks 6 on one side of precast body 1 are locked into the cross-shaped locking groove 9, thereby reducing the gap between precast body 1 and precast body 2 5 when placed side by side. This reduces the solids accumulated inside precast body 1 and precast body 2 5. When cleaning solid waste, simply remove the U-shaped filter trough 4. Pull the U-shaped filter trough 4 upward to move the mounting block 310 at the bottom of the top plate 301 out and upward. This will cause the pressure plates 303 on both sides of the first rotating plate 307 and the second rotating plate 309 to rotate downward and compress the spring 304. Under the movable engagement of the limiting post 308, the bottom ends of the first rotating plate 307 and the second rotating plate 309 will rotate in the placement groove 306, removing the mounting block 310. This completes the disassembly of the U-shaped filter trough 4, allowing for timely cleaning of the solid waste accumulated in the prefabricated body 1 and the prefabricated body 2 5.

[0029] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0030] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0031] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A precast concrete drainage ditch component, comprising a precast component body one (1) and a precast component body two (5), characterized in that: Upper dovetail blocks (7) are fixedly connected to the middle of both sides of the precast body 1 (1) near the top. Lower dovetail blocks (8) are fixedly connected to the middle of both sides of the precast body 1 (1) near the upper dovetail blocks (7). Cross-shaped locking blocks (6) are fixedly connected to both sides of the precast body 1 (1) near both ends. Upper dovetail grooves (11) are opened on the middle of both sides of the precast body 2 (5) near the top. A lower dovetail groove (10) is provided at each dovetail groove (11). A cross-shaped slot (9) is provided on both sides of the precast body 2 (5) near both ends. A U-shaped filter groove (4) is movably sleeved on the inner wall of both the precast body 1 (1) and the precast body 2 (5). A buckle assembly (3) is provided on both sides of the U-shaped filter groove (4). The buckle assembly (3) includes a top plate (301). An installation block (310) is fixedly connected to the bottom center of the top plate (301).

2. A precast concrete drainage ditch component according to claim 1, characterized in that: The first rotating plate (307) is movably sleeved on one side of the outer wall of the mounting block (310), and the second rotating plate (309) is movably sleeved on the other side of the outer wall of the mounting block (310).

3. A precast concrete drainage ditch component according to claim 2, characterized in that: The bottom ends of the first rotating plate (307) and the second rotating plate (309) are fitted together and movably connected, and the middle of the bottom ends of the first rotating plate (307) and the second rotating plate (309) are movably connected to a limiting post (308).

4. A precast concrete drainage ditch component according to claim 1, characterized in that: Handles (2) are provided on both sides of the outer wall of the precast body one (1) and the precast body two (5).

5. A precast concrete drainage ditch component according to claim 2, characterized in that: The outer walls of the first rotating plate (307) and the second rotating plate (309) are both fixedly connected with pressure plates (303), and the bottom ends of the two pressure plates (303) are both fixedly connected with springs (304), and the bottom ends of the two springs (304) are fixedly connected with bases (305).

6. A precast concrete drainage ditch component according to claim 5, characterized in that: The base (305) has a placement groove (306) in the middle, and the inner wall of the placement groove (306) is fixedly connected to both ends of the limiting post (308).

7. A precast concrete drainage ditch component according to claim 5, characterized in that: The top plate (301) is fixedly connected to the four corners with bolts (302). The top of the top plate (301) is fixedly connected to the inner wall of one side of the U-shaped filter groove (4) by four bolts (302). The bottom of the base (305) is fixedly connected to the top of the precast body one (1) and the precast body two (5) by four bolts (302).