A fixing device for detecting environmental protection water permeability of concrete

Abstract

The utility model relates to concrete detection technical field especially is a kind of fixed equipment for concrete environmental protection water permeability detection, including containing box, the bottom end fixedly connected with contact disc in containing box inner side, the side of contact disc is provided with sealing sleeve, the inside of containing box is provided with spliced pipe, the bottom end of spliced pipe is in contact with the bottom end of containing box inner side, the side of spliced pipe is fixedly connected with rotating seat, rotating seat rotationally connects with push screw, push screw is spirally connected with containing box, containing box rotationally connects with rotating handle, rotating handle is spirally connected with connecting screw rod, the utility model is moved by the mode of rotating knob and drives push screw, to drive two spliced pipes mutual splicing in turn, and to drive rubber pad fixed in the inside of spliced pipe and concrete test piece contact in turn, to fix concrete test piece in the inside of spliced pipe in turn, so that user can quickly and conveniently install and fix concrete test piece.

Description

Technical Field

[0001] This utility model relates to the field of concrete testing technology, and in particular to a fixed device for testing the environmental permeability of concrete. Background Technology

[0002] Concrete permeability testing is an important test for assessing concrete's resistance to water penetration, primarily used to measure its durability and impermeability. Water penetration can lead to steel reinforcement corrosion, freeze-thaw damage, or chemical corrosion; therefore, permeability testing is crucial for project quality control.

[0003] Concrete permeability testing is mainly conducted through impermeability tests, permeability coefficient determination, or chloride ion flux methods, with the core objective of assessing water penetration resistance. Laboratory testing commonly uses the standard specimen pressure method, while on-site testing can be simplified using drip observation or infrared thermal imaging. Key influencing factors include the water-cement ratio, admixtures, and curing quality; a low water-cement ratio and adequate curing significantly improve impermeability.

[0004] However, the following problems were found in the implementation of the relevant technology: Generally, concrete permeability testing requires the use of a concrete permeameter. When using a concrete permeameter, the concrete specimen needs to be installed inside the mold. However, before installation, epoxy resin needs to be applied to the side wall of the concrete specimen. When the user installs the epoxy resin-coated concrete specimen inside the mold, the epoxy resin may be too thick or too thin, which may affect the sealing between the mold and the concrete specimen. In view of this, a fixing device for testing the environmental permeability of concrete is provided to overcome the above defects. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a fixed device for testing the environmental permeability of concrete.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a fixed device for testing the permeability of concrete, comprising a receiving box, a contact plate fixedly connected to the bottom of the inner side of the receiving box, a sealing sleeve provided on the side of the contact plate, a splicing pipe provided on the inner side of the receiving box, the bottom end of the splicing pipe contacting the bottom end of the inner side of the receiving box, a rotating seat fixedly connected to the side of the splicing pipe, a pushing screw rotatably connected to the rotating seat, the pushing screw being helically connected to the receiving box, a rotating handle rotatably connected to the receiving box, a connecting screw helically connected to the rotating handle, a pressure plate fixedly connected to the bottom end of the connecting screw, and a rubber pad fixedly connected to the inner side of the splicing pipe.

[0007] As a further description of the above technical solution: a knob is fixedly connected to one end of the push screw, a knob is fixedly connected to one end of the connecting screw, and there are two push screws, so that the push screws can be rotated by turning the knob.

[0008] As a further description of the above technical solution: the side wall of the receiving box is provided with a circular hole, and the inner wall of the circular hole provided with the receiving box is provided with a threaded groove. The pushing screw is spirally connected to the receiving box through the circular hole provided with the side wall of the receiving box, so that the splicing pipe can be moved synchronously by moving the pushing screw.

[0009] As a further description of the above technical solution: the number of splicing pipes is two, the vertical cross-sectional shape of the rotating seat matches the vertical cross-sectional shape of one end of the push screw, and the bottom of the rubber pad is provided with a groove to improve the sealing between the rubber pad and the concrete specimen through contact.

[0010] As a further description of the above technical solution: the sealing sleeve is slidably connected to the rubber pad through a groove opened at the bottom of the rubber pad, and a water outlet hole is opened at the top of the contact plate to facilitate the improvement of sealing performance by sliding between the sealing sleeve and the groove.

[0011] As a further description of the above technical solution: a slider is fixedly connected to one side of one of the two splicing pipes, and a groove is provided on one side of the other of the two splicing pipes. The slider is slidably connected to the groove, so as to facilitate the slider to be accommodated by opening the groove.

[0012] As a further description of the above technical solution: there are two sliders, and the sliders are slidably connected to a connecting sleeve. The connecting sleeve is slidably connected to the slide groove, which facilitates the reduction of the gap between the slider and the slide groove through the connecting sleeve.

[0013] This utility model has the following beneficial effects:

[0014] This utility model designs a fixing device for testing the permeability of concrete. Through a design and coordination, it combines components such as splicing pipes, sealing sleeves, and push screws. By rotating the knob, the push screw is moved, thereby causing the two splicing pipes to splice together. This causes the rubber pad fixed on the inner side of the splicing pipe to come into contact with the concrete specimen, thus fixing the concrete specimen to the inner side of the splicing pipe. This allows users to quickly and conveniently install and fix the concrete specimen. Attached Figure Description

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

[0016] Figure 2 This is an exploded structural diagram of the container of this utility model;

[0017] Figure 3 This is an exploded structural diagram of the splicing pipe of this utility model;

[0018] Figure 4 This is an exploded structural diagram of the connecting sleeve of this utility model.

[0019] Legend:

[0020] 1. Container box; 2. Rotating handle; 3. Connecting screw; 4. Pressure plate; 5. Push screw; 6. Knob; 7. Splicing pipe; 8. Rotating seat; 9. Contact plate; 10. Water outlet; 11. Sealing sleeve; 12. Rubber pad; 13. Slot; 14. Sliding block; 15. Connecting sleeve; 16. Slide groove. Detailed Implementation

[0021] Reference Figures 1 to 4 This utility model provides a fixing device for testing the permeability of concrete, including a receiving box 1. A contact plate 9 is fixedly connected to the bottom of the inner side of the receiving box 1 by screws. A sealing sleeve 11 is provided on the side of the contact plate 9. A splicing pipe 7 is provided inside the receiving box 1, with the bottom end of the splicing pipe 7 contacting the bottom end of the inner side of the receiving box 1. A rotating seat 8 is welded to the side of the splicing pipe 7. The rotating seat 8 rotates to drive a push screw 5, which is screwed into the receiving box 1. The receiving box 1 rotates to have a rotating handle 2, which is screwed to a connecting screw 3. A pressure plate 4 is welded to the bottom end of the connecting screw 3. A rubber pad 12 is glued to the inner side of the splicing pipe 7. This utility model uses a knob 6 to move the push screw 5, thereby causing the two splicing pipes 7 to splice together. This causes the rubber pad 12 fixed inside the splicing pipe 7 to contact the concrete specimen, thus fixing the concrete specimen inside the splicing pipe 7, allowing the user to quickly and conveniently install and fix the concrete specimen.

[0022] As a further implementation of the above technical solution: a knob 6 is fixedly connected to one end of the push screw 5, and a knob 6 is fixedly connected to one end of the connecting screw 3. There are two push screws 5, which facilitates the rotation of the push screw 5 by rotating the knob 6.

[0023] As a further implementation of the above technical solution: a circular hole is provided on the side wall of the receiving box 1, and a threaded groove is provided on the inner wall of the circular hole provided on the side wall of the receiving box 1. The push screw 5 is spirally connected to the receiving box 1 through the circular hole provided on the side wall of the receiving box 1, so that the splicing pipe 7 can be moved synchronously by moving the push screw 5.

[0024] As a further implementation of the above technical solution: there are two splicing pipes 7, the vertical cross-sectional shape of the rotating seat 8 matches the vertical cross-sectional shape of one end of the push screw 5, and the bottom of the rubber pad 12 is provided with a slot 13, so as to improve the sealing between the two by contacting the rubber pad 12 and the concrete specimen.

[0025] As a further implementation of the above technical solution: the sealing sleeve 11 is slidably connected to the rubber pad 12 through the groove 13 opened at the bottom of the rubber pad 12, and the top of the contact plate 9 is provided with a water outlet hole 10, which facilitates the improvement of sealing performance by sliding between the sealing sleeve 11 and the groove 13.

[0026] As a further implementation of the above technical solution: a slider 14 is fixedly connected to one side of one of the two splicing pipes 7, and a groove 16 is opened on one side of the other of the two splicing pipes 7. The slider 14 is slidably connected to the groove 16, so that the slider 14 can be accommodated by opening the groove 16.

[0027] As a further implementation of the above technical solution: there are two sliders 14, and the sliders 14 are slidably connected to the connecting sleeves 15. The connecting sleeves 15 are slidably connected to the slide grooves 16, so as to reduce the gap between the sliders 14 and the slide grooves 16 through the connecting sleeves 15.

[0028] Working principle:

[0029] When using this invention, the user should first cover the sides of the concrete specimen with epoxy resin and paraffin wax, ensuring that there are no gaps on the sides. After the epoxy resin or paraffin wax dries and sets, the user places it on the contact plate 9 fixed at the bottom of the inner side of the receiving box 1. Then, the user rotates the knobs 6 located on the left and right sides of the receiving box 1. The rotation of the knobs 6 drives the push screw 5 fixed to the knobs 6 to rotate synchronously. The rotation of the push screw 5 drives the rotating seat 8 at one end of the push screw 5 to move. The movement of the rotating seat 8 drives the splicing pipe 7 fixed to the rotating seat 8 to move synchronously, thereby splicing the two splicing pipes 7 together. At this time, the slider 14 fixed to one side of the two splicing pipes 7 will move to the inner side of the groove 16 opened on one side of the other splicing pipe 7. The slider 14 has a connecting sleeve 15 sliding on it. The sliding between the connecting sleeve 15, the slider 14, and the groove 16 can achieve a certain degree of connection. To enhance the sealing between the two splicing pipes 7, a rubber pad 12 is fixed to the inner side of the splicing pipe 7. After the splicing pipes 7 are spliced, the rubber pad 12 will also come into contact with the side of the concrete specimen under the push of the splicing pipe 7. The bottom of the inner side of the rubber pad 12 has a groove 13, which slides with the sealing sleeve 11. The rubber pad 12 is deformed by the push of the splicing pipe 7 and fits tightly with the side of the concrete specimen, improving the sealing. At this time, the user should rotate the rotating handle 2 that rotates with the receiving box 1. The rotation of the rotating handle 2 will move the connecting screw 3 that is screwed on the rotating handle 2 to the top of the concrete specimen. Then, the user will rotate the knob 6 that is fixed to the connecting screw 3 to make the pressure plate 4 that is fixed at the bottom of the connecting screw 3 come into contact with the top of the concrete specimen and fix the concrete specimen to the inner side of the splicing pipe 7. This will prevent the concrete specimen from being displaced due to excessive water pressure when receiving the impact test of the water outlet 10 of the receiving plate, which would affect the accuracy of the test.

[0030] In this utility model, the connecting screw 3, rubber pad 12, rotating handle 2 and other components are all existing technologies, and their working principle is consistent with similar products on the market, so they will not be described in detail here.

[0031] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A fixed device for testing the environmental permeability of concrete, comprising a receiving box (1), characterized in that: A contact plate (9) is fixedly connected to the bottom of the inner side of the container (1). A sealing sleeve (11) is provided on the side of the contact plate (9). A splicing pipe (7) is provided on the inner side of the container (1). The bottom end of the splicing pipe (7) is in contact with the bottom end of the inner side of the container (1). A rotating seat (8) is fixedly connected to the side of the splicing pipe (7). A push screw (5) is rotatably connected to the rotating seat (8). The push screw (5) is screwed to the container (1). A rotating handle (2) is rotatably connected to the container (1). A connecting screw (3) is screwed to the rotating handle (2). A pressure plate (4) is fixedly connected to the bottom end of the connecting screw (3). A rubber pad (12) is fixedly connected to the inner side of the splicing pipe (7).

2. The fixed device for testing the environmental permeability of concrete according to claim 1, characterized in that: A knob (6) is fixedly connected to one end of the push screw (5), and a knob (6) is fixedly connected to one end of the connecting screw (3). There are two push screws (5).

3. The fixed device for testing the environmental permeability of concrete according to claim 1, characterized in that: The side wall of the container (1) is provided with a circular hole, and the inner wall of the circular hole provided with the container (1) is provided with a threaded groove. The push screw (5) is spirally connected to the container (1) through the circular hole provided with the side wall of the container (1).

4. The fixed device for testing the environmental permeability of concrete according to claim 1, characterized in that: The number of splicing pipes (7) is two, the vertical cross-sectional shape of the rotating seat (8) matches the vertical cross-sectional shape of one end of the push screw (5), and the bottom of the rubber pad (12) is provided with a slot (13).

5. A fixed device for testing the environmental permeability of concrete according to claim 1, characterized in that: The sealing sleeve (11) is slidably connected to the rubber pad (12) through a groove (13) at the bottom of the rubber pad (12), and a water outlet (10) is provided at the top of the contact plate (9).

6. A fixed device for testing the environmental permeability of concrete according to claim 1, characterized in that: A slider (14) is fixedly connected to one side of one of the two splicing pipes (7), and a groove (16) is provided on one side of the other of the two splicing pipes (7). The slider (14) is slidably connected to the groove (16).

7. A fixed device for testing the environmental permeability of concrete according to claim 6, characterized in that: There are two sliders (14), and each slider (14) is slidably connected to a connecting sleeve (15), which is slidably connected to a groove (16).

Images