Permeable concrete permeability coefficient detection device

Abstract

The utility model discloses a pervious concrete permeability coefficient detection device, which comprises a measuring cylinder frame assembly, a measuring assembly and a fixed seat, the measuring assembly is arranged on the measuring cylinder frame assembly, and the measuring cylinder frame assembly is arranged on the fixed seat. The utility model belongs to the technical field of concrete detection. A pervious concrete test block to be detected is placed in the test block placement plate of the fixed seat, water is added into a measuring cylinder of the measuring cylinder frame assembly to reach the highest scale line, a water valve is opened, and along with descending of the liquid level in the measuring cylinder, a floating block of the measuring assembly drives a sliding block to slide on a supporting frame; the specific value of the time when the sliding block passes through the two laser measurers to the liquid level difference of the two laser measurers is the water permeation coefficient of the pervious concrete, the specific value of the water volume difference between the measuring cylinder and the measuring cup to the concrete volume is the water absorption rate of the pervious concrete, and during testing, the sealing ring increases the pressure on the test block to prevent water flow from overflowing from the edge, so that the test efficiency is improved. And the test precision is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of concrete detection, in particular to a device for detecting the water permeability coefficient of permeable concrete. Background Art

[0002] Permeable concrete, also known as porous concrete, sandless concrete or permeable flooring, is a porous, lightweight concrete made from aggregate, cement, reinforcing agents, and water. It is breathable, water-permeable, and lightweight. The permeability and water absorption rate of permeable concrete significantly affect its performance. The better the permeability of permeable concrete, the more effectively it can reduce urban rainwater runoff and improve the urban water environment. Permeable concrete with a lower water absorption rate exhibits better stability during freeze-thaw cycles and is less likely to crack.

[0003] When conducting testing, the existing permeable concrete testing device requires the operator to calculate the water injection time and water injection volume, as well as the water permeability, so as to calculate the permeability of the permeable concrete per unit time based on the ratio of water permeability to water injection volume. However, manual operation brings great inconvenience to the permeability testing of permeable concrete, and the water absorption rate test of concrete requires separate experiments. At the same time, when fixing the sample concrete block, it is impossible to achieve good isolation, so that water can leak from the edge joints, resulting in large errors in the test data. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a device for detecting the water permeability coefficient of permeable concrete, which effectively solves the above problems.

[0005] The technical solution adopted by the present invention is as follows: The present invention proposes a device for detecting the permeability coefficient of permeable concrete, comprising a measuring cylinder frame assembly, a measuring assembly and a fixed seat, wherein the measuring assembly is arranged on the measuring cylinder frame assembly, and the measuring cylinder frame assembly is arranged on the fixed seat; the measuring cylinder frame assembly comprises a measuring cylinder, a sealing plate, a measuring cylinder support plate and a sealing ring, the measuring cylinder is arranged on the measuring cylinder support plate, the sealing plate is arranged on the bottom of the measuring cylinder, and the sealing ring is arranged on the sealing plate.

[0006] Furthermore, a measuring cylinder bottom plate is provided at the bottom of the measuring cylinder, a water pipe is provided at the bottom of the measuring cylinder bottom plate, a water valve is provided on the water pipe, and a connecting rod is provided on the measuring cylinder bottom plate.

[0007] Furthermore, the sealed plate is arranged at the bottom of the connecting rod, a drain hole is provided in the center of the sealed plate, the bottom of the drain pipe is connected to the sealed plate, the drain hole is located below the drain pipe, and fixed slide grooves are symmetrically provided at the center of the edge of the sealed plate.

[0008] Furthermore, a support frame is provided at the front end of the measuring cylinder support plate, a support frame is provided at the center of the support frame, a pulley frame is provided on the top of the support frame, a support sleeve is provided at the rear end of the measuring cylinder support plate, reinforcing ribs are provided on the side wall of the support sleeve, and a threaded sleeve is provided at the bottom of the support sleeve, and the threaded sleeve rotates on the support sleeve.

[0009] Furthermore, a spring support frame is symmetrically provided at the center of the edge of the sealing ring, the spring support frame slides in the fixed slide groove, a pressure spring is provided at the bottom of the spring support frame, the bottom of the pressure spring is provided at the bottom of the fixed slide groove, an elastic sealing member is provided at the bottom of the sealing ring, and a locking member is provided at the top of the spring support frame, and the locking member is hinged to the top of the fixed slide groove.

[0010] Furthermore, the measuring component includes a slider and a laser measurer, the slider slides in a slide groove, the laser measurer slides on the edge of the support frame, a groove for the slider to pass through is provided inside the laser measurer, and a sensing probe is also provided inside the laser measurer.

[0011] The friction between the slider and the slide groove is smaller than the static friction. When the slider is not subjected to external force, it will slide off the slide groove. The friction between the laser measurer and the support frame is larger than the static friction. When the laser measurer is not subjected to external force, it will be fixed on the support frame.

[0012] Furthermore, the measuring assembly also includes a pulley, a float, a rope and a display screen, the pulley is arranged on the pulley frame, the float is arranged in the measuring cylinder, the rope passes through the pulley and is arranged between the slider and the float, and the display screen is arranged on the top of the support frame.

[0013] Furthermore, a base support rod is provided on the fixed seat, a test block placement plate is provided above the base support rod, a placement groove is provided in the center of the test block placement plate, a drain pipe is provided at the bottom of the placement groove, a threaded rod is provided on the rear side of the fixed seat, the support shaft sleeve is provided on the threaded rod, the threaded shaft sleeve is connected to the threaded rod by threads, and the fixed seat is also provided with a measuring cup, which is placed at the bottom of the test block placement plate.

[0014] The beneficial effects achieved by the utility model using the above structure are as follows:

[0015] 1. Place the permeable concrete test block to be tested into the placement groove of the test block placement plate, open the water valve, and the water in the measuring cylinder flows through the permeable concrete test block and into the measuring cup from the drain pipe. After the water in the measuring cylinder has flowed out, observe the scale on the measuring cup. The difference between the measuring cylinder and the measuring cup is the water absorption of the permeable concrete, and the ratio of the water absorption to the concrete volume is the water absorption rate of the permeable concrete.

[0016] 2. During the measurement process, as the liquid level in the measuring cylinder drops, the floating block on the liquid surface gradually drops, and the slider is driven by the rope to gradually slide on the support frame. When it passes the laser measuring device below, the timing starts. When the floating block passes the laser measuring device above, the timing ends, and the value is displayed on the display screen. According to the properties of the permeable concrete to be measured, the positions of the two laser measuring devices can be moved, and the lowest height of the measuring cylinder when the laser measuring device starts timing can be adjusted. At the same time, the value on the measuring cylinder can be read through the hole of the laser measuring device. The height difference between the two laser measuring devices is the test water volume during the timing process, and the ratio of the test water volume to the timing is the permeability coefficient of the permeable concrete.

[0017] 3. After the permeable concrete test block is placed in the test block placement plate, adjust the height of the measuring cylinder support plate by rotating the threaded sleeve, and make the elastic seal at the bottom of the sealing ring fit against the upper surface of the permeable concrete test block, push the locking piece outward, and the locking piece rotates outward. Under the elastic force of the pressure spring, the sealing ring is driven downward, thereby improving the sealing effect of the elastic seal on the permeable concrete, preventing water from overflowing from the edge of the elastic seal, and improving the accuracy of the permeability coefficient of the permeable concrete. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional diagram of a device for detecting water permeability coefficient of permeable concrete proposed in the present utility model;

[0019] Figure 2 This is a front view of a device for detecting water permeability coefficient of permeable concrete proposed by the present invention;

[0020] Figure 3 for Figure 2 A cross-sectional view along the cutting line AA;

[0021] Figure 4 for Figure 2 A cross-sectional view along the cutting line BB;

[0022] Figure 5 for Figure 1 A partial enlarged view of part Ⅰ in FIG;

[0023] Figure 6 for Figure 3 A partial enlarged view of part II in FIG.

[0024] Among them, 1, measuring cylinder frame assembly, 11, measuring cylinder, 111, measuring cylinder bottom plate, 112, downpipe, 113, water valve, 114, connecting rod, 12, sealing plate, 121, exhaust valve, 122, downhole, 123, fixed slide, 13, measuring cylinder support plate, 131, support frame, 1311, slide, 1312, pulley frame, 132, support sleeve, 1321, reinforcement rib, 133, threaded sleeve, 1 4. Sealing ring, 141. Pressure spring, 142. Spring support frame, 143. Elastic sealing member, 144. Locking member, 2. Measuring assembly, 21. Slider, 22. Laser measuring device, 23. Pulley, 24. Floating block, 25. Rope, 26. Display screen, 3. Fixed seat, 31. Test block placement plate, 311. Placement groove, 312. Drain pipe, 32. Base support rod, 33. Threaded rod, 34. Measuring cup.

[0025] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] like Figures 1-6 As shown, the utility model proposes a device for detecting the permeability coefficient of permeable concrete, comprising a measuring cylinder frame assembly 1, a measuring assembly 2 and a fixing seat 3, wherein the measuring assembly 2 is arranged on the measuring cylinder frame assembly 1, and the measuring cylinder frame assembly 1 is arranged on the fixing seat 3; the measuring cylinder frame assembly 1 comprises a measuring cylinder 11, a sealing plate 12, a measuring cylinder support plate 13 and a sealing ring 14, the measuring cylinder 11 is arranged on the measuring cylinder support plate 13, the sealing plate 12 is arranged at the bottom of the measuring cylinder 11, and the sealing ring 14 is arranged on the sealing plate 12.

[0028] A measuring cylinder bottom plate 111 is provided at the bottom of the measuring cylinder 11 . A water down pipe 112 is provided at the bottom of the measuring cylinder bottom plate 111 . A water valve 113 is provided on the water down pipe 112 . A connecting rod 114 is provided on the measuring cylinder bottom plate 111 .

[0029] The sealed plate 12 is arranged at the bottom of the connecting rod 114, and a drain hole 122 is provided in the center of the sealed plate 12. The bottom of the drain pipe 112 is connected to the sealed plate 12, and the drain hole 122 is located below the drain pipe 112. A fixed slide groove 123 is symmetrically provided at the center of the edge of the sealed plate 12.

[0030] A support frame 131 is provided at the front end of the measuring cylinder support plate 13, a support frame 131 is provided at the center of the support frame 131, a pulley frame 1312 is provided at the top of the support frame 131, a support sleeve 132 is provided at the rear end of the measuring cylinder support plate 13, a reinforcing rib 1321 is provided on the side wall of the support sleeve 132, and a threaded sleeve 133 is provided at the bottom of the support sleeve 132, and the threaded sleeve 133 rotates on the support sleeve 132.

[0031] A spring support frame 142 is symmetrically provided at the center of the edge of the sealing ring 14. The spring support frame 142 slides in the fixed slide groove 123. A pressure spring 141 is provided at the bottom of the spring support frame 142. The bottom of the pressure spring 141 is provided at the bottom of the fixed slide groove 123. An elastic sealing member 143 is provided at the bottom of the sealing ring 14. A locking member 144 is provided at the top of the spring support frame 142. The locking member 144 is hinged to the top of the fixed slide groove 123.

[0032] The measuring assembly 2 includes a slider 21 and a laser measurer 22. The slider 21 slides in the slide groove 1311, and the laser measurer 22 slides on the edge of the support frame 131. A groove for the slider 21 to pass through is provided inside the laser measurer 22. A sensing probe is also provided inside the laser measurer 22.

[0033] The friction between the slider 21 and the slide groove 1311 is smaller than the static friction. When the slider 21 is not subjected to external force, it will slide off the slide groove 1311. The friction between the laser measuring device 22 and the support frame 131 is larger than the static friction. When the laser measuring device 22 is not subjected to external force, it will be fixed on the support frame 131.

[0034] The measuring assembly 2 also includes a pulley 23, a float 24, a rope 25 and a display screen 26. The pulley 23 is arranged on the pulley frame 1312, the float 24 is arranged in the measuring cylinder 11, the rope 25 passes through the pulley 23 and is arranged between the slider 21 and the float 24, and the display screen 26 is arranged on the top of the support frame 131.

[0035] A base support rod 32 is provided on the fixing seat 3, and a test block placement plate 31 is provided above the base support rod 32. A placement groove 311 is provided in the center of the test block placement plate 31, and a drain pipe 312 is provided at the bottom of the placement groove 311. A threaded rod 33 is provided on the rear side of the fixing seat 3, and a support shaft sleeve 132 is provided on the threaded rod 33. The threaded shaft sleeve 133 is connected to the threaded rod 33 through threads. The fixing seat 3 is also provided with a measuring cup 34, and the measuring cup 34 is placed at the bottom of the test block placement plate 31.

[0036] When in use, the permeable concrete test block is placed in the placement groove 311 of the test block placement plate 31, and the threaded sleeve 133 is rotated. The threaded sleeve 133 drives the measuring cylinder support plate 13 to move downward. When the elastic sealing member 143 at the bottom of the sealing ring 14 is in contact with the upper surface of the permeable concrete test block, the rotation of the threaded sleeve 133 is stopped, and the locking member 144 is moved outward. The locking member 144 rotates outward to the horizontal at the top of the fixed slide groove 123. Under the push of the locking member 144, the spring support frame 142 moves downward in the fixed slide groove 123 and compresses the pressure spring 141. Under the elastic force of the pressure spring 141, the sealing ring 14 is driven to move further downward, increasing the pressure of the elastic seal 143 on the upper surface of the permeable concrete, thereby improving the sealing effect of the elastic seal 143 on the permeable concrete, and preventing water from overflowing from the edge of the elastic seal 143.

[0037] Close the water valve 113 and add water to the measuring cylinder 11 to the highest scale line. At this time, the slider 21 is at the bottom of the slide 1311. Adjust the two laser measuring devices 22 to the appropriate height. The value on the measuring cylinder 11 can be read through the holes of the laser measuring devices 22. The height difference between the two laser measuring devices 22 is the test water volume during the timing process. Open the water valve 113, and the water in the measuring cylinder 11 flows through the downpipe 112 and out the downpipe hole 122 in the center of the sealing plate 12 to the permeable concrete test block. During this process, the air in the sealing plate 12 is discharged through the exhaust valve 121, but no water is discharged through the exhaust valve 121.

[0038] As the liquid level in the measuring cylinder 11 drops, the floating block 24 on the liquid surface gradually descends, and the slide block 21 is driven by the rope 25 to gradually slide on the support frame 131. When it passes the laser measuring device 22 below, the timing starts. When the floating block 24 passes the laser measuring device 22 above, the timing ends and the value is displayed on the display screen 26. The ratio of the test water volume to the timing is the permeability coefficient of the permeable concrete. The water flowing through the permeable concrete will be gathered in the placement groove 311 of the test block placement plate 31, and will flow into the measuring cup 34 from the drain pipe 312 on the placement groove 311. After the test is completed, it is allowed to stand for a certain period of time, and the liquid level in the measuring cup 34 is observed and the value is read. The difference between the measuring cylinder 11 and the measuring cup 34 is the water absorption capacity of the permeable concrete.

[0039] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention.

[0041] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A device for detecting water permeability coefficient of permeable concrete, characterized in that: It comprises a measuring cylinder frame assembly (1), a measuring assembly (2) and a fixing seat (3), wherein the measuring assembly (2) is arranged on the measuring cylinder frame assembly (1), and the measuring cylinder frame assembly (1) is arranged on the fixing seat (3); The measuring cylinder stand assembly (1) comprises a measuring cylinder (11), a sealing plate (12), a measuring cylinder support plate (13) and a sealing ring (14); the measuring cylinder (11) is arranged on the measuring cylinder support plate (13); the sealing plate (12) is arranged at the bottom of the measuring cylinder (11); and the sealing ring (14) is arranged on the sealing plate (12); A measuring cylinder bottom plate (111) is provided at the bottom of the measuring cylinder (11), a water pipe (112) is provided at the bottom of the measuring cylinder bottom plate (111), a water valve (113) is provided on the water pipe (112), and a connecting rod (114) is provided on the measuring cylinder bottom plate (111); The sealed plate (12) is arranged at the bottom of the connecting rod (114), a water discharge hole (122) is arranged at the center of the sealed plate (12), the bottom of the water discharge pipe (112) is connected to the sealed plate (12), the water discharge hole (122) is located below the water discharge pipe (112), and fixed sliding grooves (123) are symmetrically arranged at the center of the edge of the sealed plate (12).

2. A permeable concrete permeability coefficient detection device according to claim 1, characterized in that: A support frame (131) is provided at the front end of the measuring cylinder support plate (13), a slide groove (1311) is provided at the center of the support frame (131), a pulley frame (1312) is provided at the top of the support frame (131), a support shaft sleeve (132) is provided at the rear end of the measuring cylinder support plate (13), a reinforcing rib (1321) is provided on the side wall of the support shaft sleeve (132), and a threaded shaft sleeve (133) is provided at the bottom of the support shaft sleeve (132), and the threaded shaft sleeve (133) rotates on the support shaft sleeve (132).

3. A permeable concrete permeability coefficient detection device according to claim 2, characterized in that: A spring support frame (142) is symmetrically arranged at the center of the edge of the sealing ring (14), the spring support frame (142) slides in the fixed slide groove (123), a pressure spring (141) is arranged at the bottom of the spring support frame (142), the bottom of the pressure spring (141) is arranged at the bottom of the fixed slide groove (123), an elastic sealing member (143) is arranged at the bottom of the sealing ring (14), and a locking member (144) is arranged at the top of the spring support frame (142), and the locking member (144) is hinged to the top of the fixed slide groove (123).

4. A permeable concrete permeability coefficient detection device according to claim 3, characterized in that: The measuring assembly (2) comprises a slider (21) and a laser measuring device (22), wherein the slider (21) slides in a slide groove (1311), and the laser measuring device (22) slides on an edge of a support frame (131). A groove through which the slider (21) passes is provided inside the laser measuring device (22), and a sensing probe is also provided inside the laser measuring device (22).

5. A device for detecting water permeability coefficient of permeable concrete according to claim 4, characterized in that: The measuring assembly (2) further comprises a pulley (23), a floating block (24), a rope (25) and a display screen (26); the pulley (23) is arranged on a pulley frame (1312); the floating block (24) is arranged in a measuring cylinder (11); the rope (25) passes through the pulley (23) and is arranged between the slider (21) and the floating block (24); and the display screen (26) is arranged on the top of the support frame (131).

6. A device for detecting water permeability coefficient of permeable concrete according to claim 5, characterized in that: The fixing seat (3) is provided with a base support rod (32), a test block placement plate (31) is provided above the base support rod (32), a placement groove (311) is provided at the center of the test block placement plate (31), a drain pipe (312) is provided at the bottom of the placement groove (311), a threaded rod (33) is provided at the rear side of the fixing seat (3), the support shaft sleeve (132) is provided on the threaded rod (33), the threaded shaft sleeve (133) and the threaded rod (33) are connected by threads, and the fixing seat (3) is also provided with a measuring cup (34), and the measuring cup (34) is placed at the bottom of the test block placement plate (31).

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