Spliceable straight sand washing flow channel

By designing the inverted L-shaped connecting rod and sealing components, the problem of gasket aging caused by loose flange connections was solved, achieving stable splicing and sealing of the flow channel and ensuring the sand washing effect.

CN224363379UActive Publication Date: 2026-06-16CCCC TIANJIN WATERWAY BUREAU CO LTD HUNAN BRANCH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CCCC TIANJIN WATERWAY BUREAU CO LTD HUNAN BRANCH
Filing Date
2025-06-05
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

The bolts at the flange connection of the existing straight sand washing channel are loose, which leads to aging and damage of the gasket, affecting the connection stability and sealing effect, and thus causing water leakage, which affects the sand washing effect.

Method used

The design employs an inverted L-shaped connecting rod and sealing components. Through the combination of bolts and rubber strips, the flow channel can be spliced ​​and sealed. The inverted L-shaped connecting rod and the top strip are used to fix the position of the flow channel, and the sealing is achieved by the compression of the rubber strip to prevent water leakage.

🎯Benefits of technology

It improves the stability and sealing of the flow channel connection, reduces water leakage, and ensures the stability and efficiency of the sand washing effect.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224363379U_ABST
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Abstract

The utility model relates to sand washing flow passage technical field, and disclose a kind of spliced straight line sand washing flow passage, including flow passage A and the flow passage B of installation in flow passage A one end, butt joint structure includes mounting frame member and the upper top component of installation in mounting frame member inside, flow passage B is inserted between two groups of inverted L shape connecting rod, operator can hand bolt body, with the rotation of bolt body and top strip, the outer surface of drum and the inner wall of side groove contact, flow passage B is lifted using top strip, the position of flow passage B is fixed, the installation length of the present device is adjusted to flow passage A and flow passage B, when installing between flow passage A and flow passage B, with the rotation of bolt body, flow passage B extrude rubber strip, avoid the present device water leakage, and flow passage A and flow passage B between through the rotation of bolt body, reduce the gap between flow passage A and flow passage B, avoid the elastic weakening of rubber strip, the sealing property between flow passage A and flow passage B is not enough.
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Description

Technical Field

[0001] This utility model relates to the field of sand washing channel technology, specifically a splicable straight sand washing channel. Background Technology

[0002] Straight-line washing channels are typically used on dredging vessels to wash sand, gravel, silt, and other materials. They are designed to use the force of water flow to separate sand and gravel from silt, ensuring more efficient cleaning and dredging operations. High-pressure water flow washes away impurities such as mud and suspended matter from the sand and gravel, leaving primarily clean sand and gravel. The water flow within the channel, through appropriate angles and velocities, helps separate materials of different densities.

[0003] The existing method of splicing between straight sand washing channels generally involves connecting different sections of the channel using flanges and bolts. Each channel has a corresponding flange at its end, and the two flanges are fastened together with bolts to ensure a leak-proof joint. This method is typically used for metal pipes or steel structure channels. However, prolonged use may cause the bolts at the flange connection to loosen, and the flange gaskets may age, become damaged, or become unsuitable in this environment. Especially under high vibration conditions, this can affect the stability of the connection and the sealing effect. The gaskets at the flange connection may be subjected to significant pressure, making them prone to deformation or damage, leading to leakage and affecting the sand washing effect. Utility Model Content

[0004] The purpose of this invention is to provide a splicable straight sand washing channel to solve the problem mentioned in the background art where loose bolts at the flange connection affect the sand washing effect.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a splicable straight sand washing channel, including channel A and channel B installed at one end of channel A, wherein a docking structure is installed on the outer side of channel A, and one end of channel B is located between channel A and the docking structure.

[0006] The docking structure includes an installation frame component and an upper top component installed inside the installation frame component, and a sealing component is installed at the bottom end of the flow channel A.

[0007] Preferably, the mounting structure includes inverted L-shaped connecting rods symmetrically installed on both sides of one end of the flow channel A, with a connecting strip installed between the bottom ends of the inverted L-shaped connecting rods, and a bolt body threaded through the middle end of the connecting strip.

[0008] Preferably, the upper top component includes an upper top strip that is slidably installed between the two sets of inverted L-shaped connecting rods. A trapezoidal strip is installed at the top of the upper top strip. Side grooves are opened on the adjacent sides of the inverted L-shaped connecting rods. An inner plate is installed at both ends of the upper top strip. A roller is movably installed between the inner plates. The top of the bolt body is movably installed at the bottom of the upper top strip.

[0009] Preferably, inclined baffles are installed on both sides of the top of the trapezoidal strip, and the inclined baffles are located inside the side groove. The side groove is located above the roller, and guide grooves are opened on both sides of the top of the trapezoidal strip.

[0010] Preferably, the sealing component includes an inner insert plate and a rubber strip installed at the bottom of the inner insert plate. Both sides of the inner insert plate are threaded with connecting bolts, and the outer surface of the rubber strip is coated with a polyurethane coating.

[0011] Preferably, the bottom end of the flow channel A is provided with a slot, and the top of the slot is provided with a threaded hole.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model discloses a splicable straight sand washing channel. The channel B is inserted between two sets of inverted L-shaped connecting rods. The operator can hold the bolt body and rotate the bolt body to push the upper top bar. The outer surface of the roller contacts the inner wall of the side groove. The upper top bar is used to lift the channel B and fix the position of the channel B. This device facilitates the adjustment of the installation length of the channel A and the channel B.

[0014] 2. The present invention discloses a splicable straight sand washing channel. When channel A and channel B are installed, as the bolt body rotates, channel B squeezes the rubber strip to prevent water leakage of the device. Moreover, the rotation of the bolt body reduces the gap between channel A and channel B, preventing the rubber strip from weakening and the sealing between channel A and channel B from being insufficient. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0016] Figure 2 This is a three-dimensional structural diagram of the mounting frame component of this utility model;

[0017] Figure 3 For the present utility model Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This is a three-dimensional structural diagram of the sealing component of this utility model.

[0019] In the diagram: 1. Flow channel A; 11. Mounting slot; 12. Threaded hole; 2. Flow channel B; 3. Butt joint structure; 31. Mounting frame component; 311. Inverted L-shaped connecting rod; 312. Connecting strip; 313. Side groove; 314. Bolt body; 32. Top component; 321. Top strip; 322. Trapezoidal strip; 323. Inclined baffle; 324. Guide groove; 325. Internal plate; 326. Roller; 33. Sealing component; 331. Inner plate; 332. Connecting bolt; 333. Rubber strip; 334. Polyurethane coating. Detailed Implementation

[0020] 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.

[0021] Example 1: Please refer to Figures 1-3 A splicable straight sand washing channel includes a channel A1 and a channel B2 installed at one end of the channel A1. A docking structure 3 is installed on the outside of the channel A1. One end of the channel B2 is located between the channel A1 and the docking structure 3. The channel A1 and the channel B2 are detachable, which facilitates the disassembly and transportation of this device and reduces the floor space occupied.

[0022] The docking structure 3 includes a mounting frame 31 and an upper top member 32 installed inside the mounting frame 31. A sealing member 33 is installed at the bottom end of the flow channel A1, and the sealing member 33 is aligned with the mounting frame 31.

[0023] The mounting frame component 31 includes inverted L-shaped connecting rods 311 symmetrically installed on both sides of one end of the flow channel A1. The side of the inverted L-shaped connecting rods 311 that is close to each other is in direct contact with the outer wall of the flow channel B2. A connecting strip 312 is installed between the bottom ends of the inverted L-shaped connecting rods 311. A bolt body 314 is threaded through the middle end of the connecting strip 312. The rotating bolt body 314 facilitates the adjustment of the height of the upper support component 32.

[0024] The upper top component 32 includes an upper top bar 321 slidably installed between the two sets of inverted L-shaped connecting rods 311. A trapezoidal bar 322 is installed at the top of the upper top bar 321. Side grooves 313 are opened on the adjacent sides of the inverted L-shaped connecting rods 311. An inner plate 325 is installed at both ends of the upper top bar 321. A roller 326 is movably installed between the inner plates 325. The top of the bolt body 314 is movably installed at the bottom end of the upper top bar 321. The outer wall of the roller 326 contacts the inner wall of the side groove 313 to facilitate the movement of the upper top bar 321.

[0025] Both sides of the top of the trapezoidal bar 322 are inclined with baffles 323, and the baffles 323 are located inside the side groove 313. The inclined baffles 323 facilitate the removal of sand and mud while guiding the mud and sand to flow away, preventing the mud and sand from accumulating inside the side groove 313. The side groove 313 is located above the roller 326. Both sides of the top of the trapezoidal bar 322 are provided with guide grooves 324. The baffles 323 clean the area that the roller 326 passes through, preventing sand and mud from blocking the normal movement of the roller 326. The guide grooves 324 guide the flowing sand and mud to avoid affecting the placement of the flow channel B2.

[0026] In this embodiment: When channel A1 and channel B2 are connected, channel B2 is first inserted between two sets of inverted L-shaped connecting rods 311. At this time, the upper top bar 321 is at the bottom of channel B2. The length between channel A1 and channel B2 is adjusted according to the sand washing environment. When channel B2 moves to a suitable position, the operator can hold the bolt body 314. With the rotation of the bolt body 314, the upper top bar 321 is lifted. The built-in plates 325 installed at both ends of the upper top bar 321 move inside the side groove 313. The outer surface of the roller 326 contacts the inner wall of the side groove 313. The upper top bar 321 is used to lift channel B2 and fix the position of channel B2. This device facilitates the adjustment of the installation length of channel A1 and channel B2.

[0027] Example 2: This example is an improvement upon Example 1. For details, please refer to [link / reference]. Figures 2-4 The sealing component 33 includes an inner insert plate 331 and a rubber strip 333 installed at the bottom of the inner insert plate 331. Both sides of the inner insert plate 331 are threaded with connecting bolts 332. The outer surface of the rubber strip 333 is coated with a polyurethane coating 334. The polyurethane coating 334 can effectively block ultraviolet rays and oxygen, prevent the rubber strip 333 from hardening and becoming brittle due to sun exposure or oxidation, and maintain its softness and elasticity. The polyurethane coating 334 has excellent waterproof performance, which can prevent water from penetrating into the interior of the rubber strip 333 and prevent the rubber strip 333 from swelling or deforming due to water absorption, thereby protecting its elasticity.

[0028] The bottom end of the flow channel A1 is provided with a slot 11, and the top of the slot 11 is provided with a threaded hole 12. The position of the threaded hole 12 is aligned with the position of the connecting bolt 332. The threaded end of the connecting bolt 332 is threaded into the inside of the threaded hole 12 to install the sealing member 33. The slot 11 is compatible with the inner plate 331. The sealing member 33 can be replaced, and the sealing between the flow channel A1 and the flow channel B2 can be maintained in the best condition.

[0029] In this embodiment: When installing flow channel A1 and flow channel B2, the upper flow channel B2 is pushed up by rotating the bolt body 314. The bottom end of the inner part of flow channel B2 contacts the bottom end of the rubber strip 333. As the bolt body 314 rotates, flow channel B2 squeezes the rubber strip 333, preventing water leakage from the device. Furthermore, the rotation of the bolt body 314 reduces the gap between flow channel A1 and flow channel B2, preventing the rubber strip 333 from losing elasticity and ensuring adequate sealing between flow channel A1 and flow channel B2. The outer surface of the rubber strip 333 is provided with a polyurethane coating 334. The polyurethane coating 334 not only protects the surface of the rubber strip 333 and increases its wear resistance, but also helps maintain the elasticity of the rubber strip 333. During the movement of the top strip 321, the inclined baffle 323 also moves inside the side groove 313 to prevent sand and mud from flowing into the side groove 313 and affecting the normal movement of the top strip 321. After the sand washing is completed, the connecting bolt 332 is turned to remove the inner insert plate 331 with the rubber strip 333 installed from the inside of the mounting slot 11 and replace the rubber strip 333 to facilitate the device to maintain the sealing between the flow channel A1 and the flow channel B2.

[0030] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A splicable straight sand washing channel, comprising channel A (1) and channel B (2) installed at one end of channel A (1), characterized in that: A docking structure (3) is installed on the outside of the flow channel A (1), and one end of the flow channel B (2) is located between the flow channel A (1) and the docking structure (3); The docking structure (3) includes an installation frame component (31) and an upper top component (32) installed inside the installation frame component (31), and a sealing component (33) is installed at the bottom end of the flow channel A (1).

2. The splicable straight sand washing channel according to claim 1, characterized in that: The mounting structure component (31) includes inverted L-shaped connecting rods (311) symmetrically installed on both sides of one end of the flow channel A (1). A connecting strip (312) is installed between the bottom ends of the inverted L-shaped connecting rods (311), and a bolt body (314) is threaded through the middle end of the connecting strip (312).

3. The splicable straight sand washing channel according to claim 2, characterized in that: The upper top component (32) includes an upper top bar (321) slidably installed between the two sets of inverted L-shaped connecting rods (311). A trapezoidal bar (322) is installed at the top of the upper top bar (321). Side grooves (313) are opened on the side of the inverted L-shaped connecting rods (311) that are close to each other. An inner plate (325) is installed at both ends of the upper top bar (321). A roller (326) is movably installed between the inner plates (325). The top of the bolt body (314) is movably installed at the bottom of the upper top bar (321).

4. The splicable straight sand washing channel according to claim 3, characterized in that: The top two sides of the trapezoidal strip (322) are both inclined with baffles (323), and the baffles (323) are inside the side groove (313). The side groove (313) is located above the roller (326). The top two sides of the trapezoidal strip (322) are both provided with guide grooves (324).

5. A splicable straight sand washing channel according to claim 4, characterized in that: The sealing component (33) includes an inner insert plate (331) and a rubber strip (333) installed at the bottom of the inner insert plate (331). Both sides of the inner insert plate (331) are threaded with connecting bolts (332), and the outer surface of the rubber strip (333) is coated with a polyurethane coating (334).

6. A splicable straight sand washing channel according to claim 5, characterized in that: The bottom end of the flow channel A (1) is provided with a slot (11), and the top of the slot (11) is provided with a threaded hole (12).