Concrete pavement water permeability detection device

Abstract

The utility model discloses a concrete pavement water permeability detection device which comprises a detection mechanism, the detection mechanism comprises a machine body, a water storage tank fixed on the top surface of the machine body and a round pipe clamped in the water storage tank, and the top end of the round pipe is fixedly connected with a sample clamping and plugging mechanism. A glass graduated tube is fixed at the top end of the sample clamping and plugging mechanism; and the sample clamping and plugging mechanism comprises a servo air pump on the left side wall of the machine body. According to the technical scheme, the outer cylinder is arranged between the circular tube and the glass graduated tube, the annular air bag in the outer cylinder is inflated through the air pump and the air pipe, so that the air bag expands inwards to clamp a concrete sample, the concrete sample is prevented from inclining, and the posture of the concrete sample is fixed; under the expansion action of the air bag, the silica gel sleeve ring is tightly attached to the surface of concrete, so that the surface gap of the concrete outer ring is blocked, and the influence of the gap on the water permeability detection result is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete testing equipment, in particular to a concrete pavement water permeability testing device. Background Art

[0002] For the water permeability test of permeable concrete, at least one concrete sample is usually prepared in advance in the laboratory according to the concrete formula, and the sample is generally cylindrical. The concrete is placed in a vertical pipe, and the gap between the sample and the pipe is sealed with clay or solid glue. Water is poured from above and the water flow capacity, speed, and other information that passes through the concrete sample to the bottom are observed. However, the inventors found that in the process of testing the water permeability of the concrete sample using the above method, there is a gap of varying sizes between the concrete sample and the inner wall of the pipe. The water flow above the sample is easily discharged directly along the gap, resulting in a large error in the test results. The blocking of clay or colloid leads to residues on the pipe wall and the concrete sample in the later stage. In addition, clay or colloid can only be used for narrow gaps, and when there is a large gap in the concrete sample in the pipe, the sample will also be unstable. Therefore, those skilled in the art hereby propose a device for testing the water permeability of concrete pavement. Utility Model Content

[0003] The purpose of this utility model is to provide a concrete pavement water permeability detection device to address the shortcomings of the background technology. In order to solve the drawbacks and defects of the background technology, this utility model provides the following technical solutions:

[0004] The invention comprises a detection mechanism, which comprises an organism, a water storage tank fixed on the top surface of the organism, and a circular tube clamped inside the water storage tank, and the top end of the circular tube is fixedly connected to a sample clamping and sealing mechanism, and the top end of the sample clamping and sealing mechanism is fixed to a glass scale tube; the sample clamping and sealing mechanism comprises a servo air pump on the left side wall of the organism, an outer cylinder fixed to the top end of the circular tube and the bottom end of the glass scale tube, and an annular air bag is arranged in the inner cavity of the outer cylinder, a silicone ring is fixed on the inner cavity side wall of the annular air bag, and the air delivery end of the servo air pump is connected to an air pipe running through the interior of the annular air bag.

[0005] As a preferred solution of the present invention, a circle chamber is opened inside the annular airbag for the annular airbag to expand inward after being inflated, and circular holes for the air supply pipe to pass through are opened on the side walls of the annular airbag and the outer tube, and the inside of the circular hole is filled with sealant.

[0006] As a preferred solution of the present invention, the outer ring surface of the silicone sleeve is fixedly connected to the inner ring surface of the annular airbag through an adhesive, and the inner ring surface of the silicone sleeve is in close contact with the surface of the cylindrical concrete sample.

[0007] As a preferred solution of the present invention, ports are provided on the upper and lower end surfaces of the outer cylinder for draining the water inside the glass graduated tube into the interior of the circular tube.

[0008] As a preferred solution of the present invention, a drain pipe is installed on the left side wall of the body, and the water inlet end of the drain pipe is connected to the drain port of the water storage tank, and a digital display control panel is installed on the front side wall of the body.

[0009] As a preferred solution of the present invention, a waterproof pipe is fixed on the right side of the top surface of the body, and a water inlet pipe is connected through the side wall of the waterproof pipe.

[0010] As a preferred solution of the present invention, a clamping seat is installed on the top surface of the body for clamping with the bottom end port of the round tube.

[0011] As a preferred solution of the present invention, the top end port of the glass graduated tube is located below the drain outlet of the waterproof tube, and volume scale values are etched on the outer ring surface of the glass graduated tube.

[0012] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0013] This technical solution sets an outer tube between the circular tube and the glass graduated tube, and uses an air pump and air tube to inflate the annular airbag inside the outer tube, so that the airbag expands inward and clamps the concrete sample, preventing it from tilting and fixing its posture. A circle of silicone ring is set between the concrete sample and the airbag. Under the action of the airbag expansion, the silicone ring is tightly attached to the surface of the concrete, thereby sealing the gaps on the surface of the outer ring of the concrete and reducing the influence of the gaps on the permeability test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0015] Figure 1 It is the overall schematic diagram of the concrete water permeability testing mechanism;

[0016] Figure 2 The figure is the overall schematic diagram of the detection body;

[0017] Figure 3 Schematic diagram of the sample clamping and sealing mechanism inside the detection mechanism.

[0018] Description of reference numerals:

[0019] 1. Detection mechanism; 11. Machine body; 12. Drain pipe; 13. Water storage tank; 14. Round tube; 15. Glass graduated tube; 16. Waterproof tube; 17. Water inlet pipe; 2. Sample clamping and sealing mechanism; 21. Servo air pump; 22. Air tube; 23. Silicone collar; 24. Annular airbag; 25. Outer tube. DETAILED DESCRIPTION

[0020] In order to more clearly explain and illustrate the technical solution and implementation of the present invention, several preferred specific embodiments for implementing the technical solution of the present invention are introduced below.

[0021] The following description is merely exemplary in nature and is not intended to limit the present disclosure, its applications and uses. It should be understood that in all of these figures, the same or similar reference numerals indicate the same or similar parts and features. The various figures only schematically represent the concepts and principles of the embodiments of the present disclosure and do not necessarily show the specific dimensions and proportions of the various embodiments of the present disclosure. Specific parts in specific figures may use exaggerated methods to illustrate the relevant details or structures of the embodiments of the present disclosure. The various publications, patents and published patent specifications cited herein are incorporated herein by reference in their entirety. The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention.

[0022] Embodiment, the preferred technical solution of the concrete permeability detection device:

[0023] Refer to the instruction manual Figure 2 and attached Figure 3 As shown; it includes a detection mechanism 1, which includes an organism 11, a water tank 13 fixed on the top surface of the organism 11, and a circular tube 14 clamped inside the water tank 13, and the top of the circular tube 14 is fixedly connected to a sample clamping and sealing mechanism 2, and the top of the sample clamping and sealing mechanism 2 is fixed to a glass calibrated tube 15; the sample clamping and sealing mechanism 2 includes a servo air pump 21 on the left side wall of the organism 11, an outer cylinder 25 fixed to the top of the circular tube 14 and the bottom of the glass calibrated tube 15, and an annular air bag 24 is provided in the inner cavity of the outer cylinder 25, a silicone ring 23 is fixed on the inner cavity side wall of the annular air bag 24, and the air delivery end of the servo air pump 21 is connected to an air pipe 22 that penetrates into the interior of the annular air bag 24.

[0024] Refer to the instruction manual Figure 3As shown, the annular airbag 24 has a chamber inside for inflating and expanding inward. The sidewalls of both the annular airbag 24 and the outer tube 25 are provided with circular holes through which the air supply tube 22 passes. The interior of these holes is filled with sealant. The outer surface of the silicone collar 23 is fixedly attached to the inner surface of the annular airbag 24 via adhesive, and the inner surface of the silicone collar 23 is in close contact with the surface of the cylindrical concrete sample. Ports are provided on the upper and lower end surfaces of the outer tube 25 for draining water from the glass graduated tube 15 into the inner portion of the circular tube 14.

[0025] Refer to the instruction manual Figure 2 As shown; a drain pipe 12 is installed on the left side wall of the body 11, and the water inlet end of the drain pipe 12 is connected to the drain port of the water tank 13, and a digital display control panel is installed on the front side wall of the body 11. A waterproof tube 16 is fixed to the right position of the top surface of the body 11, and a water inlet pipe 17 is connected to the side wall of the waterproof tube 16. A socket is installed on the top surface of the body 11 for clamping with the bottom end port of the circular tube 14. The top end port of the glass scale tube 15 is located below the drain port of the waterproof tube 16, and the volume scale value is etched on the outer ring surface of the glass scale tube 15.

[0026] According to the above-mentioned preferred technical solution, the workflow of the technical solution is described as follows:

[0027] Using a clamping tool such as pliers, grip the top of the outer ring of the cylindrical concrete sample and place it inside outer tube 25. After servo air pump 21 inflates annular airbag 24 through air tube 22, the outer ring of annular airbag 24, blocked by outer tube 25, expands inward and pushes against silicone collar 23, thereby clamping the concrete sample using the expansion force. At this point, the clamping action on the concrete sample is released. The expansion of annular airbag 24 stabilizes the concrete sample in the tube, while silicone collar 23 seals the gap between the concrete sample and the tube.

[0028] Then the water inlet pipe 17 transports the external water source to the waterproof pipe 16, and then transports the water to the inside of the glass graduated tube 15 through the waterproof pipe 16, and records the falling speed and loss of water flow inside the glass graduated tube 15, thereby detecting the water permeability performance data of the concrete sample.

[0029] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A concrete pavement water permeability detection device, comprising a detection mechanism (1), characterized in that: The detection mechanism (1) comprises an organism (11), a water storage tank (13) fixed on the top surface of the organism (11), and a circular tube (14) clamped inside the water storage tank (13), wherein the top end of the circular tube (14) is fixedly connected to a sample clamping and sealing mechanism (2), and the top end of the sample clamping and sealing mechanism (2) is fixed to a glass graduated tube (15); The sample clamping and sealing mechanism (2) includes a servo air pump (21) on the left side wall of the organism (11), an outer cylinder (25) fixed to the top end of the circular tube (14) and the bottom end of the glass graduated tube (15), an annular air bag (24) is provided in the inner cavity of the outer cylinder (25), a silicone ring (23) is fixed on the inner cavity side wall of the annular air bag (24), and an air delivery end of the servo air pump (21) is connected to an air pipe (22) that penetrates the interior of the annular air bag (24).

2. A concrete pavement water permeability detection device according to claim 1, characterized in that: A circular chamber is provided inside the annular airbag (24) for the annular airbag (24) to expand inward after being inflated, and circular holes through which the air supply pipe (22) passes are provided on the side walls of the annular airbag (24) and the outer tube (25), and the interior of the circular hole is filled with sealant.

3. The concrete pavement water permeability detection device according to claim 1, characterized in that: The outer ring surface of the silicone sleeve (23) is fixedly connected to the inner ring surface of the annular airbag (24) via an adhesive, and the inner ring surface of the silicone sleeve (23) is in close contact with the surface of the cylindrical concrete sample.

4. A concrete pavement water permeability detection device according to claim 1, characterized in that: The upper and lower end surfaces of the outer cylinder (25) are both provided with ports for draining the water inside the glass graduated tube (15) into the inside of the circular tube (14).

5. The device for detecting water permeability of a concrete pavement according to claim 1, characterized in that: A drain pipe (12) is installed on the left side wall of the machine body (11), and the water inlet end of the drain pipe (12) is connected to the drain port of the water storage tank (13). A digital display control panel is installed on the front side wall of the machine body (11).

6. The device for detecting water permeability of a concrete pavement according to claim 1, characterized in that: A waterproof pipe (16) is fixed on the right side of the top surface of the machine body (11), and a water inlet pipe (17) is connected to the side wall of the waterproof pipe (16).

7. The device for detecting water permeability of a concrete pavement according to claim 1, characterized in that: A card seat is installed on the top surface of the body (11) for card connection with the bottom end port of the circular tube (14).

8. The device for detecting water permeability of a concrete pavement according to claim 1, characterized in that: The top end of the glass graduated tube (15) is located below the drain port of the waterproof tube (16), and volume scale values are etched on the outer surface of the glass graduated tube (15).

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