A triaxial apparatus pipeline anti-blocking connecting device

By designing a triaxial apparatus pipeline anti-clogging connection device, and utilizing a detachable filter plate and backflushing system, the problem of triaxial apparatus pipeline blockage was solved, enabling rapid cleaning and maintenance, and ensuring the accuracy of test data and normal operation of the equipment.

CN224524197UActive Publication Date: 2026-07-21江苏省水文地质工程地质调查大队
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
江苏省水文地质工程地质调查大队
Filing Date
2025-08-26
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Blockage in the triaxial apparatus pipes leads to unreliable test data, abnormal equipment operation, high maintenance costs, and cumbersome operation. Cleaning the blockage requires disassembling the pipes or replacing the filter, which can easily cause secondary pollution or damage to components.

Method used

A triaxial instrument pipeline anti-clogging connection device was designed, comprising a filter plate, a limiting rod, a return spring, a sealing gasket, a limiting ring, an annular pipe, and a nozzle. Through the detachable filter plate and backflushing system, quick replacement and cleaning of blockages can be achieved.

Benefits of technology

Ensure unobstructed pipelines, maintain system sealing and filtration efficiency, extend device lifespan, simplify maintenance processes, and avoid secondary contamination.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of three-axis instrument pipeline anti-blocking connecting devices, it is related to pipeline anti-blocking technical field, including filter tube, the both ends of filter tube are fixedly installed with joint;Filter tube is fixedly sleeved with receiving plate on outer wall, receiving plate is sealedly connected with filter tube;Receiving plate and filter tube are equipped with assembly groove, filter plate is limit slidingly installed in the inside of assembly groove, filter plate and the inside of assembly groove are transition fit, filter hole is equipped in the position corresponding to the inside of filter tube on filter plate;The inner wall of filter tube is provided with backflushing component. Operator first pulls limit rod and makes it separate from limit hole, after taking out old filter plate, new filter plate is loaded, limit rod is automatically reset and locked using inclined plane guidance;When backflushing cleaning, water pump is started, high-pressure water is sprayed from nozzle through annular pipeline and is reversely washed filter plate. Through detachable filter plate and backflushing system, quick maintenance is realized, it is convenient to remove blocking particle, and keep pipeline unobstructed.
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Description

Technical Field

[0001] This utility model relates to the field of pipeline anti-clogging technology, and in particular to a triaxial instrument pipeline anti-clogging connection device. Background Technology

[0002] A triaxial apparatus is a laboratory testing device used to determine the mechanical properties of soil or rock. It primarily simulates the mechanical response of materials under different stress states by applying controlled confining pressure and axial load. Its core principle involves sealing a cylindrical specimen in a pressure chamber, applying uniform radial confining pressure through a liquid, and simultaneously using an axial loading system to compress or stretch the specimen, thereby studying parameters such as shear strength, deformation characteristics, and permeability. Triaxial apparatuses can perform various test types and can saturate the specimen through a back pressure system or control pore water pressure, making them widely used in geotechnical engineering, geological exploration, and materials science.

[0003] During the use of a triaxial apparatus, pipe blockage can seriously affect the accuracy of the test and the normal operation of the equipment. Its main disadvantages include: obstruction of pore water pressure or confining pressure transmission, resulting in delayed or even distorted pressure response, making the test data unreliable; blockage of back pressure pipes can hinder sample saturation, affecting the test results and reducing the validity of the test; accumulation of particles or bubbles may damage precision sensors (such as pore water pressure gauges), increasing maintenance costs; in addition, clearing blockages requires disassembling the pipes or replacing the filter, which is cumbersome and may cause secondary pollution or component damage due to improper handling.

[0004] To address the aforementioned problems, this utility model proposes a triaxial instrument pipeline anti-blocking connection device. Utility Model Content

[0005] To address the problems existing in the background technology, this utility model proposes a triaxial instrument pipeline anti-blocking connection device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a triaxial apparatus pipeline anti-clogging connection device, comprising a filter tube, with connectors fixedly installed at both ends of the filter tube; a receiving plate is fixedly sleeved on the outer wall of the filter tube, and the receiving plate is sealed to the filter tube; an assembly groove is provided on the receiving plate and the filter tube, and a filter plate is slidably installed inside the assembly groove, with the filter plate and the assembly groove having a transition fit; a filter hole is provided on the filter plate corresponding to the position inside the filter tube; and a backflushing component is provided on the inner wall of the filter tube. The present invention is further configured such that guide grooves are provided on both the upper and lower sides of the receiving plate, and limit rods are slidably installed inside the guide grooves. The opposite ends of the two limit rods are both set with bevels. Limit holes are provided on the filter plate, and the limit rods are inserted into the limit holes. The opposite ends of the two limit rods are fixedly connected with return springs, and the other end of the return springs is fixedly connected to the outer wall of the receiving plate. The return springs are sleeved on the outside of the limit rods. The present invention is further provided that sealing gaskets are fixedly installed on both the upper and lower sides of the filter plate. The present invention is further configured such that the backwash assembly includes an annular pipe and nozzles, the annular pipe is fixedly installed on the inner wall of the filter pipe, and multiple nozzles are evenly fixedly installed on the outer wall of the annular pipe, with each nozzle communicating with the interior of the annular pipe; a water pump is fixedly installed on the outer wall of the filter pipe, and the output end of the water pump is connected to the annular pipe. The present invention is further configured such that limiting rings are fixedly installed on both sides of the filter plate inside the filter tube, and the filter plate is inserted between the two limiting rings. The present invention is further provided that grooves are provided on both the upper and lower sides of the filter plate at positions corresponding to the inside of the filter tube, and filter holes are disposed in the grooves.

[0007] Compared with the prior art, the beneficial effects of this utility model are: This triaxial apparatus pipeline anti-clogging connection device consists of a filter plate, guide groove, limit rod, return spring, sealing gasket, limit ring, annular pipe, nozzle, and water pump. When replacing the filter plate, the operator first pulls the limit rod to disengage it from the limit hole, removes the old filter plate, and installs the new one. The inclined guide automatically resets and locks the limit rod. During backflushing, the water pump is activated, and high-pressure water flows through the annular pipe and sprays out from the nozzle to flush the filter plate in reverse. The removable filter plate and backflushing system enable rapid maintenance, facilitate the removal of clogging particles, maintain pipeline patency, ensure system sealing and filtration efficiency, and extend the service life of the filtration device. Attached Figure Description

[0008] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial cross-sectional view of the present invention. Figure 3 This utility model Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the internal structure of the filter tube of this utility model; Figure 5 This is a schematic diagram of another embodiment of the present invention.

[0009] Reference numerals: 1. Filter tube; 2. Connector; 3. Receiving plate; 4. Assembly groove; 5. Filter plate; 6. Filter hole; 7. Guide groove; 8. Limiting rod; 9. Limiting hole; 10. Return spring; 11. Sealing gasket; 12. Annular pipe; 13. Nozzle; 14. Water pump; 15. Limiting ring; 16. Groove. Detailed Implementation

[0010] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0011] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0012] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0013] Please see Figure 1-4 This utility model provides a technical solution: a triaxial apparatus pipeline anti-clogging connection device, including a filter tube 1, with connectors 2 fixedly installed at both ends of the filter tube 1; a receiving plate 3 is fixedly sleeved on the outer wall of the filter tube 1, and the receiving plate 3 is sealed to the filter tube 1. This ensures a firm pipeline connection, prevents leakage under high pressure conditions, and facilitates quick disassembly and maintenance.

[0014] The receiving plate 3 and the filter tube 1 are provided with assembly grooves 4. The filter plate 5 is slidably installed inside the assembly groove 4, and the filter plate 5 and the assembly groove 4 are in transition fit. Specifically, the upper and lower sides of the receiving plate 3 are provided with guide grooves 7. The guide grooves 7 are slidably installed inside the guide grooves 7. The opposite ends of the two limit rods 8 are set with bevels. The filter plate 5 is provided with limit holes 9. The limit rods 8 are inserted into the limit holes 9. The opposite ends of the two limit rods 8 are fixedly connected with return springs 10. The other end of the return springs 10 is fixedly connected to the outer wall of the receiving plate 3. The return springs 10 are sleeved on the outside of the limit rods 8. The filter plate 5 has filter holes 6 at positions corresponding to the inside of the filter tube 1; specifically, the upper and lower sides of the filter plate 5 have grooves 16 at positions corresponding to the inside of the filter tube 1, and the filter holes 6 are located in the grooves 16.

[0015] A backwash assembly is installed on the inner wall of the filter pipe 1. The backwash assembly includes an annular pipe 12 and nozzles 13. The annular pipe 12 is fixedly installed on the inner wall of the filter pipe 1, and multiple nozzles 13 are evenly fixedly installed on the outer wall of the annular pipe 12. All nozzles 13 are connected to the inside of the annular pipe 12. A water pump 14 is fixedly installed on the outer wall of the filter pipe 1, and the output end of the water pump 14 is connected to the annular pipe 12. When the operator starts the water pump 14, the water pump 14 pressurizes the external water source and delivers it to the annular pipe 12. The high-pressure water flow forms multiple high-speed jets through the evenly distributed nozzles 13. These jets impact the inner wall of the filter pipe 1 at a specific angle.

[0016] In this embodiment of the invention, sealing gaskets 11 are fixedly installed on both the upper and lower sides of the filter plate 5. This enhances the sealing performance of the assembly groove 4, prevents fluid leakage, and ensures the filtration effect. In this embodiment of the invention: Limiting rings 15 are fixedly installed on both sides of the filter plate 5 inside the filter tube 1, and the filter plate 5 is inserted between the two limiting rings 15. This positions the filter plate 5, preventing it from shifting or tilting, and ensuring filtration stability. Working principle: When the filter plate 5 needs to be replaced, the operator first pulls the limiting rods 8 on both sides outwards simultaneously, using the inclined design of the limiting rods 8 to gradually disengage them from the internal space of the limiting hole 9. After the limiting rods 8 are completely out of the limiting hole 9, the operator holds the handle on the filter plate 5 and smoothly pulls the filter plate 5 outwards along the guide direction of the assembly groove 4. During this process, the filter plate 5 maintains a transitional fit with the assembly groove 4. After disassembly, the operator cleans and maintains the new filter plate 5. During installation, the new filter plate 5 is aligned with the entrance of the assembly groove 4. Guided by the inclined surface of the limiting rod 8, the filter plate 5 slides smoothly into the assembly groove 4. During this process, the limiting rod 8 is pressed into the guide groove 7 by the inclined surface, and the return spring 10 is stretched. When the filter plate 5 is fully inserted, the limiting hole 9 is exactly aligned with the position of the limiting rod 8. At this time, the return spring 10 releases its stored elastic potential energy, pushing the limiting rod 8 into the limiting hole 9, completing the automatic locking.

[0017] Throughout the replacement process, the two limiting rings 15 guide and limit the movement trajectory of the filter plate 5, ensuring that the filter plate 5 is always in the correct working position.

[0018] When backflushing is required, the operator starts the water pump 14. The pump pressurizes the external water source and delivers it to the annular pipe 12. The high-pressure water flow forms multiple high-speed jets through evenly distributed nozzles 13. These jets impact the inner wall of the filter tube 1 at a specific angle, effectively removing particles accumulated on and around the inner wall of the filter tube 1. During backflushing, the water flow direction is opposite to the normal filtration direction. This reverse flushing method can more thoroughly remove stubborn deposits attached to the filter plate 5. After backflushing is completed, the water pump 14 is turned off, and the flushed particles are discharged from the system with the water flow.

[0019] Please see Figure 5 In another embodiment, a water valve 17 is fixedly installed on the filter pipe 1. The water valve 17 is located on the side of the water pump 14 away from the filter plate 5. Pure water for rinsing the pipeline enters the filter pipe 1 from the output port of the water pump 14, and the water pressure is transmitted to both the upper and lower ends. By closing the valve 17 before the rinsing operation, the water pressure intensity of the rinsing is increased, thereby improving the rinsing effect.

[0020] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A triaxial apparatus pipeline anti-clogging connection device, comprising a filter tube (1), characterized in that: Both ends of the filter tube (1) are fixedly installed with connectors (2); a receiving plate (3) is fixedly sleeved on the outer wall of the filter tube (1), and the receiving plate (3) is sealed to the filter tube (1); an assembly groove (4) is opened on the receiving plate (3) and the filter tube (1), and a filter plate (5) is slidably installed inside the assembly groove (4), and the filter plate (5) is transitionally fitted to the assembly groove (4). A filter hole (6) is opened on the filter plate (5) at a position corresponding to the inside of the filter tube (1); a backflushing component is provided on the inner wall of the filter tube (1).

2. The triaxial apparatus pipeline anti-clogging connection device according to claim 1, characterized in that: The upper and lower sides of the receiving plate (3) are provided with guide grooves (7), and limit rods (8) are slidably installed inside the guide grooves (7). The opposite ends of the two limit rods (8) are set with bevels. Limit holes (9) are opened on the filter plate (5). The limit rods (8) are inserted into the limit holes (9). The opposite ends of the two limit rods (8) are fixedly connected with reset springs (10). The other end of the reset springs (10) is fixedly connected to the outer wall of the receiving plate (3). The reset springs (10) are sleeved on the outside of the limit rods (8).

3. The triaxial apparatus pipeline anti-clogging connection device according to claim 1, characterized in that: Sealing gaskets (11) are fixedly installed on both the upper and lower sides of the filter plate (5).

4. The triaxial apparatus pipeline anti-clogging connection device according to claim 1, characterized in that: The backwash assembly includes an annular pipe (12) and nozzles (13). The annular pipe (12) is fixedly installed on the inner wall of the filter pipe (1), and multiple nozzles (13) are evenly fixedly installed on the outer wall of the annular pipe (12). The nozzles (13) are all connected to the inside of the annular pipe (12). A water pump (14) is fixedly installed on the outer wall of the filter pipe (1), and the output end of the water pump (14) is connected to the annular pipe (12).

5. The triaxial apparatus pipeline anti-clogging connection device according to claim 1, characterized in that: The filter tube (1) has two fixed limit rings (15) installed inside the filter plate (5) on both sides, and the filter plate (5) is inserted between the two limit rings (15).

6. The triaxial apparatus pipeline anti-clogging connection device according to claim 1, characterized in that: The filter plate (5) has grooves (16) on both the upper and lower sides corresponding to the positions inside the filter tube (1), and filter holes (6) are set in the grooves (16).