Impermeability instrument for concrete
By introducing a handle, positive and negative screws, a limiting rod, and an electric telescopic rod into the permeability tester, the problem of slow mold fixing was solved, enabling rapid assembly and disassembly and good sealing for concrete permeability testing.
Patent Information
- Application Number
- CN202520012525.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-01-03
AI Technical Summary
When using existing permeability testing instruments, the test mold needs to be fixed with multiple sets of bolts, resulting in low assembly and disassembly efficiency and increasing the time consumption for concrete permeability testing.
The design employs a handle to drive the forward and reverse screws and limit rods, uses a slot to fix the test mold, and utilizes an electric telescopic rod and push rod to achieve quick assembly and disassembly of the test mold. Combined with a sealing structure of rubber gaskets and clamping rings, it ensures airtightness.
It enables rapid assembly and disassembly of test molds, improves the efficiency of concrete impermeability testing, and ensures sealing and testing reliability.
Smart Images

Figure CN223784133U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of permeability testing technology, specifically to a permeability testing device for concrete. Background Technology
[0002] Construction refers to the production activities during the implementation phase of a project. It is the process of building various types of buildings, or the process of turning the lines on the design drawings into physical objects at a designated location. Concrete is a building material, while impermeability testing equipment is a concrete testing tool.
[0003] However, when using existing permeability testing instruments, the test mold needs to be fixed to the equipment with multiple sets of bolts, which greatly reduces the efficiency of test mold assembly and disassembly, resulting in more time being spent on concrete permeability testing.
[0004] In view of this, the present invention proposes a permeability tester for concrete. Utility Model Content
[0005] This invention proposes a permeability tester for concrete, which solves the problem that some permeability testers require multiple sets of bolts to fix the test mold to the equipment during use, which greatly reduces the efficiency of test mold assembly and disassembly, resulting in more time being spent on concrete permeability testing.
[0006] The technical solution of this utility model is as follows: A permeability tester for concrete includes a testing platform. A connecting ring is fixedly connected to the top of the testing platform. A rubber pad is embedded inside the connecting ring. A connecting ring is fixedly connected to the top of the rubber pad. A test mold is fixedly connected to the top of the connecting ring. Both sides of the connecting ring are provided with slots. A connecting plate fixedly connected to the testing platform is provided on the side of the slot. A handle is rotatably connected to one side of the connecting plate. A positive and negative screw is fixedly connected to the side of the handle near the connecting ring. Two sets of fixing plates are threaded onto the surface of the positive and negative screws. A limiting rod slidably connected to the connecting plate is fixedly connected to one side of the two sets of fixing plates. A groove is provided inside the connecting ring. A water outlet is provided inside the groove. Both ends of the connecting ring are provided with clamping rings fixedly connected to the testing platform.
[0007] Preferably, side plates are fixedly connected to both sides of the test mold, mounting frames are fixedly connected to both sides of the testing platform, an electric telescopic rod is fixedly connected to the inner wall of the mounting frame, and a push rod is fixedly connected to the tail of the electric telescopic rod.
[0008] Preferably, the top of the connecting ring is provided with a circular groove about its own center, and the size of the rubber pad is adapted to the circular groove.
[0009] Preferably, the top of the water outlet is flush with the groove, and the water outlet is located at the center of the connecting ring.
[0010] Preferably, the slot is sized to match the fixing plate, and the slot is located on the movement trajectory of the fixing plate.
[0011] Preferably, the limiting rod is vertically disposed on one side of the fixed plate, and the limiting rod slides horizontally along the interior of the connecting plate via positive and negative screws.
[0012] Preferably, the test mold is fixed at the top of the connecting ring by two sets of fixing plates, and the clamping ring and the connecting ring are in a tight fit.
[0013] Preferably, the push rod is vertically disposed at the bottom of the lifting plate, and two sets of push rods are symmetrically disposed about the midpoint of the lifting plate.
[0014] Preferably, when the test mold is placed on top of the connecting ring, the side plate is located under the movement trajectory of the push rod.
[0015] The working principle and beneficial effects of this utility model are as follows:
[0016] 1. In this utility model, a handle is provided. Rotating the handle drives the forward and reverse screws to rotate. At this time, the two sets of fixing plates will move horizontally towards the inside of the slot under the action of the limiting rod, and finally engage with the inside of the slot, thereby fixing the test mold on the top of the connecting ring. When the test mold needs to be disassembled, it is only necessary to turn the handle to control the two sets of fixing plates to move out of the slot, so as to achieve the purpose of quick assembly and disassembly.
[0017] 2. In this utility model, a push rod is set up. When the electric telescopic rod is opened, it pushes the lifting plate down. The push rod then descends and finally pushes the side plate, thereby applying a downward thrust to the test mold, so that the rubber pad and the connecting ring are tightly fitted. Under the action of the rubber pad, the gap between the connecting ring and the connecting ring can be sealed. Attached Figure Description
[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0020] Figure 2 This is a schematic diagram showing the position of the side plate of this utility model;
[0021] Figure 3 This is a schematic diagram of the card slot structure of this utility model;
[0022] Figure 4 This is a schematic diagram showing the location of the water outlet of this utility model.
[0023] In the diagram: 1. Testing platform; 2. Connecting ring; 3. Rubber pad; 4. Connecting ring; 5. Trial mold; 6. Slot; 7. Connecting plate; 8. Handle; 9. Fixing plate; 10. Positive and negative screws; 11. Lifting plate; 12. Limiting rod; 13. Groove; 14. Water outlet; 15. Side plate; 16. Mounting frame; 17. Electric telescopic rod; 18. Push rod; 19. Clamping ring. Detailed Implementation
[0024] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model. Example
[0025] A preferred embodiment of the concrete permeability tester provided by this utility model is, for example... Figures 1 to 4 As shown: A permeability tester for concrete includes a test platform 1. A connecting ring 2 is fixedly connected to the top of the test platform 1. A rubber pad 3 is embedded inside the connecting ring 2. A connecting ring 4 is fixedly connected to the top of the rubber pad 3. A test mold 5 is fixedly connected to the top of the connecting ring 4. A slot 6 is provided on both sides of the connecting ring 4. A connecting plate 7 fixedly connected to the test platform 1 is provided on the side of the slot 6. A handle 8 is rotatably connected to one side of the connecting plate 7. A positive and negative screw 10 is fixedly connected to the side of the handle 8 near the connecting ring 2. Two sets of fixing plates 9 are threadedly connected to the surface of the positive and negative screw 10. A limiting rod 12 slidably connected to the connecting plate 7 is fixedly connected to one side of the two sets of fixing plates 9. A groove 13 is provided inside the connecting ring 2. A water outlet 14 is provided inside the groove 13. Clamping rings 19 fixedly connected to the test platform 1 are provided at both ends of the connecting ring 4.
[0026] In this embodiment, the top of the connecting ring 4 is provided with a circular groove about its own center. The size of the rubber pad 3 is adapted to the circular groove. By providing the circular groove, the rubber pad 3 can be embedded into the circular groove, so that the mold 5 and the connecting ring 4 fit better.
[0027] In this embodiment, the top of the outlet 14 is flush with the groove 13, the outlet 14 is located at the center of the connecting ring 2, and the outlet 14 is hidden inside the groove 13, which can prevent the bottom of the concrete from hitting the protruding part of the outlet 14.
[0028] In this embodiment, the slot 6 is matched with the size of the fixing plate 9. The slot 6 is located on the movement trajectory of the fixing plate 9. When the handle 8 is turned, the positive and negative screws 10 are rotated. At this time, the two sets of fixing plates 9 will move horizontally towards the inside of the slot 6 under the action of the limiting rod 12, and finally engage with the inside of the slot 6, thereby fixing the test mold 5 on the top of the connecting ring 2.
[0029] In this embodiment, the limiting rod 12 is vertically arranged on one side of the fixing plate 9. The limiting rod 12 slides horizontally along the inside of the connecting plate 7 through the positive and negative screws 10. By setting the positive and negative screws 10, the relative movement of the two sets of fixing plates 9 can be controlled when the handle 8 is turned.
[0030] In this embodiment, the test mold 5 is fixed on the top of the connecting ring 2 by two sets of fixing plates 9. The clamping ring 19 is in a tight fit with the connecting ring 2. By setting the clamping ring 19, the test mold 5 can be pre-positioned, and the test mold 5 can also be prevented from moving back and forth. Example
[0031] Based on Example 1, a preferred embodiment of the permeability tester for concrete provided by this utility model is as follows: Figures 1 to 4 As shown: Side plates 15 are fixedly connected to both sides of the test mold 5, and mounting frames 16 are fixedly connected to both sides of the testing table 1. An electric telescopic rod 17 is fixedly connected to the inner wall of the mounting frame 16, and a push rod 18 is fixedly connected to the tail of the electric telescopic rod 17.
[0032] In this embodiment, the push rod 18 is vertically arranged at the bottom of the lifting plate 11. Two sets of push rods 18 are symmetrically arranged about the midpoint of the lifting plate 11. By setting two sets of push rods 18, multiple sets of side plates 15 can be pushed at the same time.
[0033] In this embodiment, when the test mold 5 is placed on top of the connecting ring 2, the side plate 15 is located under the movement trajectory of the push rod 18. The electric telescopic rod 17 is opened to push the lifting plate 11 down, and the push rod 18 is lowered accordingly, and finally pushes the side plate 15, thereby applying a downward thrust to the test mold 5, so that the rubber pad 3 and the connecting ring 2 are tightly fitted.
[0034] The working principle and usage process of this utility model are as follows: First, the rubber pad 3 is embedded into the circular groove at the top of the connecting ring 2. At this time, the clamping ring 19 will fit tightly with the connecting ring 2, which plays a role in initially limiting its position. Under the action of the rubber pad 3, the gap between the connecting ring 2 and the connecting ring 4 can be sealed. Then, the concrete to be tested is placed into the interior of the test mold 5. The electric telescopic rod 17 is opened to push the lifting plate 11 down, and the push rod 18 falls down accordingly, finally pushing the side plate 15, thereby applying a downward thrust to the test mold 5, so that the rubber pad 3 fits tightly with the connecting ring 2. After fitting, turn the handle 8 to drive the positive and negative screws 10 to rotate. At this time, the two sets of fixing plates 9 will move horizontally towards the inside of the slot 6 under the action of the limit rod 12, and finally fit into the inside of the slot 6, thereby fixing the test mold 5 on the top of the connecting ring 2. Then, turn on the water valve to let the water flow out from the outlet 14. After waiting for a period of time, check whether there are water stains on the top of the concrete. If there are, it means that the concrete has failed the anti-permeability test. When it is necessary to disassemble the test mold 5, simply turn the handle 8 to control the two sets of fixing plates 9 to move out of the slot 6, so as to achieve the purpose of quick assembly and disassembly.
[0035] The above are merely preferred embodiments of the present utility model and are 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 shall be included within the protection scope of the present utility model.
Claims
1. A permeability tester for concrete, comprising a testing platform (1), characterized in that, The top of the testing platform (1) is fixedly connected to a connecting ring (2), and a rubber pad (3) is embedded inside the connecting ring (2). The top of the rubber pad (3) is fixedly connected to a connecting ring (4), and a test mold (5) is fixedly connected to the top of the connecting ring (4). Both sides of the connecting ring (4) are provided with slots (6). The side of the slots (6) is provided with a connecting plate (7) fixedly connected to the testing platform (1). One side of the connecting plate (7) is rotatably connected to a handle (8). The side of the handle (8) near the connecting ring (2) is fixedly connected to a positive and negative screw (10). The surface of the positive and negative screw (10) is threaded with two sets of fixing plates (9). One side of the two sets of fixing plates (9) is fixedly connected to a limiting rod (12) that is slidably connected to the connecting plate (7). The inside of the connecting ring (2) is provided with a groove (13). The inside of the groove (13) is provided with a water outlet (14). Both ends of the connecting ring (4) are provided with clamping rings (19) fixedly connected to the testing platform (1).
2. The permeability tester for concrete according to claim 1, characterized in that, The test mold (5) is fixedly connected to both sides with side plates (15), the test platform (1) is fixedly connected to both sides with mounting frames (16), the inner wall of the mounting frame (16) is fixedly connected with an electric telescopic rod (17), and the tail of the electric telescopic rod (17) is fixedly connected with a push rod (18).
3. The permeability tester for concrete according to claim 1, characterized in that, The top of the connecting ring (4) is provided with a circular groove about its own center, and the rubber pad (3) is adapted to the size of the circular groove.
4. A permeability tester for concrete according to claim 1, characterized in that, The top of the outlet (14) is flush with the groove (13), and the outlet (14) is located at the center of the connecting ring (2).
5. A permeability tester for concrete according to claim 1, characterized in that, The slot (6) is matched with the size of the fixing plate (9), and the slot (6) is located on the movement trajectory of the fixing plate (9).
6. A permeability tester for concrete according to claim 1, characterized in that, The limiting rod (12) is vertically disposed on one side of the fixing plate (9), and the limiting rod (12) slides horizontally along the inside of the connecting plate (7) via the positive and negative screws (10).
7. A permeability tester for concrete according to claim 1, characterized in that, The test mold (5) is fixed on the top of the connecting ring (2) by two sets of fixing plates (9), and the clamping ring (19) and the connecting ring (2) are in a tight fit.
8. A permeability tester for concrete according to claim 2, characterized in that, The push rod (18) is vertically arranged at the bottom of the lifting plate (11), and there are two sets of push rods (18) symmetrically arranged about the midpoint of the lifting plate (11).
9. A permeability tester for concrete according to claim 2, characterized in that, When the test mold (5) is placed on top of the connecting ring (2), the side plate (15) is located under the movement trajectory of the push rod (18).