A sealing structure of an automatic concrete permeability meter
By using a combination of rubber sealing sleeves and sealing mechanisms in a concrete permeability tester, and utilizing water injection expansion and mechanical sealing devices, the problem of poor sealing effect is solved, achieving efficient sealing and accurate test results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUOJIAN TESTING HLDG GRP INSTR&EQUIP (BEIJING) CO LTD
- Filing Date
- 2025-07-07
- Publication Date
- 2026-07-31
AI Technical Summary
Existing concrete permeability testers have poor sealing performance, causing seepage water to leak from the sidewalls, affecting the accuracy of test results.
The system employs a combination of a rubber sealing sleeve and a sealing mechanism. Water is injected into the rubber sealing sleeve through a water injection pipe, causing it to expand and thus sealing the gap between the rubber sealing sleeve and the inner wall of the sealing cylinder. The sealing mechanism utilizes the cooperation of multiple base plates, lifting rods, and piston plates to achieve automatic sealing of the gap.
It improves the efficiency of concrete block sealing testing, enhances the sealing effect, reduces manual operation, and improves the accuracy of test results.
Smart Images

Figure CN224581338U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of concrete permeability testing technology, specifically to a sealing structure for an automatic concrete permeability meter. Background Technology
[0002] During the processing of automated concrete, it is necessary to conduct permeability testing on the concrete. Existing concrete permeability testers place a sealing sleeve on the outside of the concrete block. Water is injected into the water injection hole of the rubber sealing sleeve to expand the sealing sleeve, thereby making the side wall of the rubber sealing sleeve fit tightly against the side wall of the concrete test block. However, the existing concrete permeability testers have poor sealing effect, which causes the permeable water to leak from the side wall, affecting the accuracy of the test results. Summary of the Invention
[0003] To address this issue, this invention provides a sealing structure for an automatic concrete permeability tester. By having the user inject water into the rubber sealing sleeve through a water injection pipe, the rubber sealing sleeve expands, thereby enabling the sealing mechanism to seal the gaps in the side walls. This solves the problem of poor sealing performance in existing concrete permeability testers, which leads to leakage of permeable water from the side walls and affects the accuracy of test results.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a sealing structure for an automatic concrete permeability meter, comprising a fixed base, a sealing cylinder on the top of the fixed base, and the sealing cylinder being threadedly connected to the fixed base;
[0005] A rubber sealing sleeve, wherein the rubber sealing sleeve is configured as an annular structure, the rubber sealing sleeve is configured as a hollow structure, the rubber sealing sleeve is disposed inside the sealing cylinder, and the rubber sealing sleeve is in contact with the inner wall of the sealing cylinder;
[0006] A connecting pipe is fixedly installed on one side of the rubber sealing strip, and a water injection pipe is fixedly connected to the outside of the connecting pipe, with the outer end of the water injection pipe extending to the outside of the sealing cylinder.
[0007] A sealing mechanism is provided inside the sealing cylinder, and the sealing mechanism is used to seal the gap between the rubber sealing sleeve and the inner wall of the sealing cylinder.
[0008] Preferably, the sealing mechanism includes multiple base plates, all of which are disposed inside the sealing cylinder, and the multiple base plates are respectively fixedly connected to the bottom of the rubber sealing sleeve.
[0009] Preferably, each of the base plates is fixedly connected to a lifting rod, and the sealing cylinder has two piston grooves inside, with the bottom of the lifting rod extending into one of the piston grooves.
[0010] Preferably, a partition plate is fixedly embedded inside the two piston grooves.
[0011] Preferably, a stop block is fixedly connected to the bottom of the partition, and two through slots are formed inside the stop block.
[0012] Preferably, a first piston plate is embedded inside one of the piston grooves, and the first piston plate is fixedly connected to the bottom of the lifting rod.
[0013] Preferably, a second piston plate is embedded inside another piston groove, and a connecting rod is fixedly connected to the top of the second piston plate, with the top end of the connecting rod extending to the outside of the piston groove.
[0014] Preferably, the sealing mechanism further includes a sealing sleeve, which is fixedly disposed inside the sealing cylinder and is fixedly connected to the top of the connecting rod.
[0015] Preferably, a first adhesive strip is fixedly connected to the top of the sealing sleeve.
[0016] Preferably, a second adhesive strip is fixedly connected to the bottom of the rubber sealing sleeve.
[0017] The beneficial effects of this utility model are:
[0018] By having the user inject water into the rubber sealing sleeve through the water injection pipe, the rubber sealing sleeve expands, thereby enabling the sealing mechanism to seal the gaps in the side walls. This solves the problem of poor sealing effect in existing concrete permeability testers, which leads to leakage of seepage water from the side walls and affects the accuracy of test results. This utility model greatly improves the efficiency of sealing test of concrete block sealing cylinders. At the same time, the device uses a sealing mechanism and a rubber sealing sleeve structure in combination, resulting in better sealing effect and higher processing efficiency. In addition, this device does not require much manual intervention, and the structure is more automated, bringing great convenience to the staff. Attached Figure Description
[0019] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.
[0020] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.
[0021] Figure 1 A schematic diagram of the overall structure of this utility model;
[0022] Figure 2 This is a partial front view and sectional view provided for this utility model;
[0023] Figure 3 Provided by this utility model Figure 2 Enlarged view of point A in the image;
[0024] Figure 4 A three-dimensional structural diagram of the sealing mechanism provided by this utility model.
[0025] In the diagram: 1. Fixed base; 2. Sealing cylinder; 3. Rubber sealing sleeve; 4. Connecting pipe; 5. Water injection pipe; 6. Base plate; 7. Lifting rod; 8. Piston groove; 9. Partition plate; 10. Stop block; 11. Through groove; 12. First piston plate; 13. Second piston plate; 14. Connecting rod; 15. Sealing sleeve; 16. First adhesive strip; 17. Second adhesive strip. Detailed Implementation
[0026] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.
[0027] See attached document Figure 1 - Appendix Figure 4 The present invention provides a sealing structure for an automatic concrete permeability tester, including a fixed base 1, a sealing cylinder 2 on the top of the fixed base 1, and the sealing cylinder 2 being threadedly connected to the fixed base 1.
[0028] Rubber sealing sleeve 3, rubber sealing sleeve 3 is a ring structure, rubber sealing sleeve 3 is a hollow structure, rubber sealing sleeve 3 is located inside sealing cylinder 2, rubber sealing sleeve 3 is in contact with the inner wall of sealing cylinder 2.
[0029] Connecting pipe 4 is fixedly installed on one side of the rubber sealing strip. A water injection pipe 5 is fixedly connected to the outside of the connecting pipe 4. The outer end of the water injection pipe 5 extends to the outside of the sealing cylinder 2.
[0030] The sealing mechanism is located inside the sealing cylinder 2 and is used to seal the gap between the rubber sealing sleeve 3 and the inner wall of the sealing cylinder 2.
[0031] In this embodiment, the user injects water into the rubber sealing sleeve 3 through the water injection pipe 5, causing the rubber sealing sleeve 3 to expand, thereby enabling the sealing mechanism to work to seal the gaps in the side walls.
[0032] To achieve the purpose of sealing the gap, this device adopts the following technical solution: The sealing mechanism includes multiple base plates 6, all of which are located inside the sealing cylinder 2. The base plates 6 are respectively fixedly connected to the bottom of the rubber sealing sleeve 3. A lifting rod 7 is fixedly connected to the bottom of each base plate 6. Two piston grooves 8 are opened inside the sealing cylinder 2. The bottom of the lifting rod 7 extends into one of the piston grooves 8. A partition plate 9 is fixedly embedded inside the two piston grooves 8. A stop block 10 is fixedly connected to the bottom of the partition plate 9. Two through grooves 11 are opened inside the stop block 10, one of which... A first piston plate 12 is embedded inside the piston groove 8. The first piston plate 12 is fixedly connected to the bottom of the lifting rod 7. A second piston plate 13 is embedded inside the other piston groove 8. A connecting rod 14 is fixedly connected to the top of the second piston plate 13. The top of the connecting rod 14 extends to the outside of the piston groove 8. The sealing mechanism also includes a sealing sleeve 15. The sealing sleeve 15 is fixedly installed inside the sealing cylinder 2. The sealing sleeve 15 is fixedly connected to the top of the connecting rod 14. A first adhesive strip 16 is fixedly connected to the top of the sealing sleeve 15. A second adhesive strip 17 is fixedly connected to the bottom of the rubber sealing sleeve 3.
[0033] When the user fills in water, the rubber sealing sleeve 3 expands, which compresses multiple base plates 6, causing them to move downwards. This downward movement of the base plates 6 drives the lifting rod 7 to move downwards, which in turn drives the first piston plate 12 to move downwards. The downward movement of the first piston plate 12 compresses the air inside the piston groove 8, causing the second piston plate 13 to move upwards. This upward movement of the second piston plate 13 drives the connecting rod 14 to move upwards, which unfolds the folded sealing sleeve 15, allowing the first adhesive strip 16 and the second adhesive strip 17 to come into contact and adhere, thereby sealing the gaps.
[0034] The usage process of this utility model is as follows: When the user injects water into the rubber sealing sleeve 3 through the water injection pipe 5, the rubber sealing sleeve 3 expands, thereby enabling the sealing mechanism to work and seal the gaps in the side walls. When the user injects water, the rubber sealing sleeve 3 expands, which compresses multiple base plates 6, causing multiple base plates 6 to move downward. The downward movement of multiple base plates 6 drives the lifting rod 7 to move downward, which in turn drives the first piston plate 12 to move downward. The downward movement of the first piston plate 12 compresses the air inside the piston groove 8, causing the second piston plate 13 to move upward. The upward movement of the second piston plate 13 drives the connecting rod 14 to move upward, which unfolds the folded sealing sleeve 15, allowing the first adhesive strip 16 and the second adhesive strip 17 to come into contact and stick together, thereby sealing the gaps.
[0035] The above description is merely a preferred embodiment of this utility model. Any person skilled in the art may modify this utility model or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solutions of this utility model are within the scope of protection claimed by this utility model.
Claims
1. A seal for an automatic permeability meter for concrete, characterized in that: include A fixed base (1) is provided with a sealing cylinder (2) on the top of the fixed base (1), and the sealing cylinder (2) is connected to the fixed base (1) by a thread; The rubber sealing sleeve (3) is a ring structure and a hollow structure. The rubber sealing sleeve (3) is located inside the sealing cylinder (2) and is in contact with the inner wall of the sealing cylinder (2). Connecting pipe (4), the connecting pipe (4) is fixedly installed on one side of the rubber sealing strip, and a water injection pipe (5) is fixedly connected to the outside of the connecting pipe (4), the outer end of the water injection pipe (5) extends to the outside of the sealing cylinder (2); A sealing mechanism is located inside the sealing cylinder (2) and is used to seal the gap between the rubber sealing sleeve (3) and the inner wall of the sealing cylinder (2).
2. The seal for an automatic permeability meter for concrete according to claim 1, characterized in that: The sealing mechanism includes multiple base plates (6), all of which are located inside the sealing cylinder (2), and are respectively fixedly connected to the bottom of the rubber sealing sleeve (3).
3. A seal for an automatic permeability apparatus for testing concrete according to claim 2, wherein: Each of the base plates (6) is fixedly connected to a lifting rod (7), and two piston grooves (8) are opened inside the sealing cylinder (2). The bottom of the lifting rod (7) extends into one of the piston grooves (8).
4. The seal for an automatic permeability meter for concrete according to claim 3, characterized in that: The two piston grooves (8) are fixedly embedded with partitions (9).
5. A seal for an automatic permeability meter for concrete according to claim 4, wherein: The bottom of the partition (9) is fixedly connected to a stop (10), and the stop (10) has two through slots (11) inside.
6. The seal for an automatic permeability meter for concrete according to claim 4, wherein: One of the piston grooves (8) is fitted with a first piston plate (12), which is fixedly connected to the bottom of the lifting rod (7).
7. The seal for an automatic permeability meter for concrete according to claim 2, wherein: Another piston groove (8) is fitted with a second piston plate (13), and a connecting rod (14) is fixedly connected to the top of the second piston plate (13). The top of the connecting rod (14) extends to the outside of the piston groove (8).
8. The seal for an automatic permeability meter for concrete according to claim 4, wherein: The sealing mechanism also includes a sealing sleeve (15), which is fixedly disposed inside the sealing cylinder (2) and is fixedly connected to the top of the connecting rod (14).
9. A seal for an automatic permeability meter for concrete according to claim 8, wherein: The top of the sealing sleeve (15) is fixedly connected with a first adhesive strip (16).
10. The seal for an automatic permeability meter for concrete according to claim 1, wherein: The bottom of the rubber sealing sleeve (3) is fixedly connected to a second adhesive strip (17).