Automatic loading and unloading sealing test cavity device for impermeability instrument test piece

By designing an automated test chamber sealing device for permeability testing specimens, and utilizing a drive cylinder and sealing ring structure, the automated sealing and opening of the test chamber of the permeability testing instrument is realized. This solves the problem of complex traditional manual sealing operations and improves test efficiency and sealing accuracy.

CN224231577UActive Publication Date: 2026-05-12SHENZHEN TIANJIAN ENG INSPECTION CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN TIANJIAN ENG INSPECTION CO LTD
Filing Date
2025-07-10
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

The sealing operation of the test chamber of a traditional permeability tester requires manual intervention, which leads to complicated, time-consuming and labor-intensive operation steps, increasing the labor intensity of the test personnel.

Method used

An automatic loading and unloading sealing test chamber device for permeability test specimens was designed. The device uses a drive cylinder to drive the sealing cover for automated port sealing and opening. Combined with the structural cooperation of the sealing ring and sealing ring, the device achieves automated sealing and opening.

Benefits of technology

It automates the sealing and opening process, reduces the labor intensity of test personnel, improves the diversity of tests and the accuracy of sealing, and meets the requirements of different test processes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an impermeability instrument test piece automatic loading and unloading sealing test cavity device which comprises a test loading cavity, an inner groove body is arranged in the test loading cavity, the inner groove body in the test loading cavity forms a material groove for an impermeability test, a loading and unloading pipe is arranged above the test loading cavity, and a sealing ring is arranged on a circle of a port part of the loading and unloading pipe. Four side fixing bases are fixedly installed at the four corners of the outer portion of the loading and unloading pipe and are circumferentially distributed at equal intervals through the center circle point of the loading and unloading pipe, a guide supporting rod is fixedly installed on the upper surface of each side fixing base, and an upper top plate is fixedly installed among the top ends of the four guide supporting rods. According to the utility model, the practical use effect of automatic port sealing and opening is achieved in the practical use process, the test loading cavity can be opened and sealed according to different impermeability test requirements, the test diversity is better, and the use requirements of different test processes are met.
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Description

Technical Field

[0001] This utility model relates to the field of permeability test chamber technology, specifically to a device for automatically loading, unloading, and sealing test chambers for permeability test specimens. Background Technology

[0002] A permeability tester is a specialized device used to test the permeability of building materials (such as concrete and mortar). It assesses the material's ability to resist liquid penetration by simulating a pressure environment and is often used in hydraulic structures, underground engineering and other scenarios with high durability requirements.

[0003] Its core function is to apply pressure to allow water or other liquids to permeate a material, observe and record the permeation pressure value, and thus assess the material's impermeability level. For example, a concrete permeability meter can test the permeability of concrete under pressure, helping to determine whether its durability meets engineering requirements.

[0004] When using a permeability tester, a test chamber is needed to load building materials. Traditional test chambers have an open structure at the port. However, depending on the requirements of different permeability tests, the test chamber sometimes needs to be sealed. However, most existing test chambers are sealed by manually loading and unloading the sealing cap. This process increases the number of test operation steps and the workload of test personnel. It is time-consuming and labor-intensive, and has certain shortcomings. Therefore, this utility model proposes an automatic loading and unloading device for permeability tester specimens to seal the test chamber. Utility Model Content

[0005] The purpose of this invention is to provide an automatic loading and unloading sealing test chamber device for permeability test specimens, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic loading and unloading sealed test chamber device for permeability testing specimens, comprising a test loading chamber, an inner tank being provided inside the test loading chamber, the inner tank forming a material trough for permeability testing, a loading and unloading pipe being provided above the test loading chamber, a sealing ring being provided around the end of the loading and unloading pipe, four side fixing seats being fixedly installed at the four corners of the loading and unloading pipe, the four side fixing seats being circumferentially distributed at equal intervals around the center point of the loading and unloading pipe, a guide support rod being fixedly installed on the upper surface of each side fixing seat, an upper top plate being fixedly installed between the top ends of the four guide support rods, a cylinder seat being fixedly installed at the middle position of the upper surface of the upper top plate, a drive cylinder being fixedly installed on the upper surface of the cylinder seat, a drive rod being telescopically connected to the output end of the drive cylinder, an mounting plate being fixedly installed on the lower surface of the bottom end of the drive rod, and a sealing cover being provided on the lower surface of the mounting plate.

[0007] Preferably, the test loading cavity and the loading / unloading pipe are fixedly connected by a flange connector, and the test loading cavity and the loading / unloading pipe are internally interconnected.

[0008] Preferably, the sealing ring adopts an inverted "concave" shaped structure design, the sealing ring covers the outer periphery of the port portion of the loading and unloading pipe, and the sealing ring is made of rubber material.

[0009] Preferably, the drive cylinder is either a hydraulic cylinder or a pneumatic cylinder.

[0010] Preferably, the diameter of the sealing cover is larger than the diameter of the loading and unloading pipe, and a sealing ring adapted to the sealing ring is fixedly installed on the lower surface of the sealing cover.

[0011] Preferably, four guide seats are fixedly installed on the outer surface of the sealing cover.

[0012] Preferably, the four guide seats are circumferentially distributed at equal intervals around the center point of the sealing cover, and the four guide seats correspond vertically to the four side fixing seats.

[0013] Preferably, the outer surface of the guide seat is provided with a sliding guide hole, and the guide seat is sleeved on the outside of the guide support rod through the sliding guide hole.

[0014] Preferably, the guide seat and the guide support rod are slidably connected vertically.

[0015] Preferably, both the test loading cavity and the loading / unloading pipe adopt a cylindrical structure design.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] In practical use, this utility model has the practical effect of automated port sealing and opening. It can open and seal the test loading cavity according to different anti-permeability test requirements, which has good test versatility and meets the use requirements of different test processes. Moreover, the sealing cover can be automatically loaded, sealed and lifted and opened under the action of the drive cylinder. The sealing and opening of the two constellations do not require manual operation, thereby reducing the labor intensity of test personnel and reducing test steps. It has a better sealing effect in anti-permeability test and is more practical.

[0018] Meanwhile, when the sealing cover is placed above the port of the loading and unloading pipe, the sealing ring below the sealing cover can be clamped and locked onto the outside of the sealing ring. Through the structural cooperation between the sealing ring and the sealing ring, the connection between the sealing cover and the loading and unloading pipe can be sealed, effectively improving the sealing test effect of the test chamber of this utility model, improving the accuracy of the sealing test, and having good sealing performance characteristics. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the test chamber device according to an embodiment of the present invention;

[0020] Figure 2 This is a bottom view of the test chamber device according to an embodiment of the present invention.

[0021] Figure 3 This is a schematic diagram of the overall external structure of the test loading cavity according to an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the internal cross-sectional structure of the test loading cavity in an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the lower surface structure of the sealing cover in an embodiment of the present invention.

[0024] In the diagram: 1. Test loading chamber; 2. Loading and unloading pipe; 3. Flange connector; 4. Side fixing seat; 5. Guide support rod; 6. Top plate; 7. Cylinder seat; 8. Drive cylinder; 9. Drive rod; 10. Mounting plate; 11. Sealing cover; 12. Guide seat; 13. Sliding guide hole; 14. Sealing ring; 15. Sealing ring. Detailed Implementation

[0025] 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.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Please see Figure 1-5 The present invention provides an embodiment of an automatic loading and unloading sealed test chamber device for a permeability tester, comprising a test loading chamber 1, wherein an inner tank is provided inside the test loading chamber 1, and the inner tank inside the test loading chamber 1 forms a material trough for the permeability test, thereby loading the test material and ensuring the normal use effect of the chamber.

[0029] A loading / unloading pipe 2 is installed above the test loading chamber 1. Both the test loading chamber 1 and the loading / unloading pipe 2 adopt a cylindrical structure design. A sealing ring 15 is provided around the end of the loading / unloading pipe 2. For details, please refer to the appendix of the instruction manual. Figure 4 As shown, the sealing ring 15 adopts an inverted "concave" shaped structure design. The sealing ring 15 covers the outer periphery of the port of the loading and unloading pipe 2. The sealing ring 15 is made of rubber. The loading and unloading pipe 2 is used as the inlet of the test loading chamber 1, so as to facilitate the injection and removal of the material for the anti-permeability test.

[0030] Four side fixing seats 4 are fixedly installed at the four corners of the loading and unloading pipe 2. The four side fixing seats 4 are evenly distributed circumferentially through the center point of the loading and unloading pipe 2. A guide support rod 5 is fixedly installed on the upper surface of each side fixing seat 4. An upper top plate 6 is fixedly installed between the top ends of the four guide support rods 5. The guide support rods 5 and the upper top plate 6 together form a support structure to ensure the normal support effect of this utility model.

[0031] A cylinder seat 7 is fixedly installed in the middle of the upper surface of the top plate 6. A drive cylinder 8 is fixedly installed on the upper surface of the cylinder seat 7. A drive rod 9 is telescopically connected to the output end of the drive cylinder 8. An mounting plate 10 is fixedly installed on the lower surface of the bottom end of the drive rod 9. A sealing cover 11 is on the lower surface of the mounting plate 10.

[0032] This structural design allows the drive cylinder 8 to drive the drive rod 9 at its output end to extend and retract. The extension and retraction of the drive rod 9 then causes the sealing cover 11 below to rise and fall. When the sealing cover 11 descends, it contacts the bottom of the loading / unloading pipe 2, thus automating the sealing of the test loading chamber 1. In practical use, it provides automated sealing and opening, allowing for the opening and sealing of the test loading chamber 1 according to different permeability test requirements. It offers good test versatility, meeting the needs of various testing processes. Furthermore, the sealing cover 11 can automatically load, seal, and lift under the action of the drive cylinder 8, eliminating the need for manual operation. This reduces the labor intensity of testing personnel and simplifies testing procedures, resulting in better sealing performance in permeability tests and greater practicality.

[0033] Furthermore, the diameter of the sealing cover 11 is larger than the diameter of the loading and unloading pipe 2, and a sealing ring 14 adapted to the sealing ring 15 is fixedly installed on the lower surface of the sealing cover 11.

[0034] With this structural design, when the sealing cover 11 is placed above the port of the loading / unloading pipe 2, the sealing ring 14 below the sealing cover 11 can be tightly clamped to the outside of the sealing ring 15. Through the structural cooperation between the sealing ring 14 and the sealing ring 15, the connection between the sealing cover 11 and the loading / unloading pipe 2 can be sealed, effectively improving the sealing test effect of the test chamber of this utility model, improving the accuracy of the sealing test, and having good sealing performance characteristics.

[0035] In this embodiment, in order to ensure the structural connectivity between the loading and unloading pipe 2 and the test loading cavity 1, the test loading cavity 1 and the loading and unloading pipe 2 are fixedly connected by a flange connector 3, and the test loading cavity 1 and the loading and unloading pipe 2 are internally interconnected.

[0036] In this embodiment, the drive cylinder 8 is either a hydraulic cylinder or a pneumatic cylinder.

[0037] In this embodiment, in order to improve the vertical movement guidance of the sealing cover 11, four guide seats 12 are fixedly installed on the outer surface of the sealing cover 11. The four guide seats 12 are circumferentially distributed at equal intervals through the central point of the sealing cover 11, and the four guide seats 12 correspond vertically to the four side fixing seats 4.

[0038] Furthermore, a sliding guide hole 13 is provided on the outer surface of the guide seat 12. The guide seat 12 is sleeved on the outside of the guide support rod 5 through the sliding guide hole 13, and the guide seat 12 and the guide support rod 5 are slidably connected up and down.

[0039] With this structural design, when the sealing cover 11 moves up and down under the action of the drive cylinder 8 and the drive rod 9, several guide seats 12 set on its exterior can slide up and down on the guide support rod 5. Through the structural cooperation between the guide seats 12 and the guide support rod 5, a certain displacement guidance can be provided for the up and down movement of the sealing cover 11, so as to maintain the linearity of the displacement. This allows the sealing ring 14 of the sealing cover 11 to be accurately wrapped around the outside of the sealing ring 15, improving the displacement accuracy and the stability of the drive cylinder 8, and has a good guiding effect.

[0040] Working principle: The test loading chamber 1 of this utility model can be installed on a suitable fully automatic permeability tester, and the material trough inside the test loading chamber 1 can load the material that needs to be tested for permeability, thereby ensuring the normal use effect of the test chamber.

[0041] This utility model uses a drive cylinder 8 to drive a drive rod 9 at its output end to extend and retract. The extension and retraction of the drive rod 9 causes the sealing cover 11 below to rise and fall. When the sealing cover 11 descends, it contacts the bottom of the loading / unloading pipe 2, thus automating the sealing of the test loading chamber 1. In practical use, it achieves automated sealing and opening, allowing for the opening and sealing of the test loading chamber 1 according to different impermeability test requirements. It offers good test versatility, meeting the requirements of different test processes. Furthermore, the sealing cover 11 can automatically load, seal, and lift under the action of the drive cylinder 8, eliminating the need for manual operation during sealing and opening. This reduces the labor intensity of test personnel and simplifies the test process, resulting in better sealing performance in impermeability tests and greater practicality.

[0042] When the sealing cover 11 moves up and down under the action of the drive cylinder 8 and the drive rod 9, several guide seats 12 set on its exterior can slide up and down on the guide support rod 5. Through the structural cooperation between the guide seats 12 and the guide support rod 5, a certain displacement guidance can be provided for the up and down movement of the sealing cover 11, so as to maintain the linearity of the displacement. This allows the sealing ring 14 of the sealing cover 11 to be accurately wrapped around the outside of the sealing ring 15, improving the displacement accuracy and the stability of the drive cylinder 8, and has a good guiding effect.

[0043] Meanwhile, when the sealing cover 11 is placed on top of the port of the loading and unloading pipe 2, the sealing ring 14 below the sealing cover 11 can be clamped and locked onto the outside of the sealing ring 15. In this way, the connection between the sealing cover 11 and the loading and unloading pipe 2 can be sealed by the structural cooperation between the sealing ring 14 and the sealing ring 15, which effectively improves the sealing test effect of the test chamber of this utility model, improves the accuracy of the sealing test, and has good sealing performance characteristics.

[0044] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An automatic loading and unloading sealed test chamber device for permeability testing specimens, comprising a test loading chamber (1), characterized in that, The test loading chamber (1) is equipped with an inner tank, which forms a material tank for the impermeability test. A loading and unloading pipe (2) is provided above the test loading chamber (1). A sealing ring (15) is provided around the port of the loading and unloading pipe (2). Four side fixing seats (4) are fixedly installed at the four corners of the loading and unloading pipe (2). The four side fixing seats (4) are circumferentially distributed at equal intervals around the center point of the loading and unloading pipe (2). The upper surface of each side fixing seat (4) is... Each of the four guide support rods (5) is fixedly installed on the surface. An upper top plate (6) is fixedly installed between the top ends of the four guide support rods (5). A cylinder seat (7) is fixedly installed in the middle of the upper surface of the upper top plate (6). A drive cylinder (8) is fixedly installed on the upper surface of the cylinder seat (7). A drive rod (9) is telescopically connected to the output end of the drive cylinder (8). An mounting plate (10) is fixedly installed on the lower surface of the bottom end of the drive rod (9). A sealing cover (11) is on the lower surface of the mounting plate (10).

2. The automatic loading and unloading sealed test chamber device for permeability testing specimens according to claim 1, characterized in that: The test loading cavity (1) and the loading and unloading pipe (2) are fixedly connected by a flange connector (3), and the test loading cavity (1) and the loading and unloading pipe (2) are interconnected.

3. The automatic loading and unloading sealed test chamber device for permeability testing specimens according to claim 1, characterized in that: The sealing ring (15) adopts an inverted "concave" shaped structure design. The sealing ring (15) covers the outer periphery of the port of the loading and unloading pipe (2). The sealing ring (15) is made of rubber.

4. The automatic loading and unloading sealed test chamber device for permeability testing specimens according to claim 1, characterized in that: The drive cylinder (8) is either a hydraulic cylinder or a pneumatic cylinder.

5. The automatic loading and unloading sealed test chamber device for permeability testing specimens according to claim 1, characterized in that: The diameter of the sealing cover (11) is larger than the diameter of the loading and unloading pipe (2), and a sealing ring (14) adapted to the sealing ring (15) is fixedly installed on the lower surface of the sealing cover (11).

6. The automatic loading and unloading sealed test chamber device for permeability testing specimens according to claim 1, characterized in that: Four guide seats (12) are fixedly installed on the outer surface of the sealing cover (11).

7. The automatic loading and unloading sealed test chamber device for permeability testing specimens according to claim 6, characterized in that: The four guide seats (12) are circumferentially distributed at equal intervals through the center point of the sealing cover (11), and the four guide seats (12) correspond vertically to the four side fixing seats (4).

8. The automatic loading and unloading sealed test chamber device for permeability testing specimens according to claim 6, characterized in that: The outer surface of the guide seat (12) is provided with a sliding guide hole (13), and the guide seat (12) is sleeved on the outside of the guide support rod (5) through the sliding guide hole (13).

9. The automatic loading and unloading sealed test chamber device for permeability testing specimens according to claim 6, characterized in that: The guide seat (12) and the guide support rod (5) are slidably connected vertically.

10. The automatic loading and unloading sealed test chamber device for permeability testing specimens according to claim 1, characterized in that: The test loading cavity (1) and the loading and unloading pipe (2) are both designed with a cylindrical structure.