Device for testing bleeding property of underwater non-dispersible concrete

Abstract

The utility model discloses a device for testing bleeding property of underwater non-dispersible concrete, which comprises a lifting and vibrating mechanism, an inclined platform and a sample barrel, the lifting and vibrating mechanism comprises an annular guide rail, a lifting component and a vibrating component, the annular guide rail is arranged around the inclined platform, the sample barrel is arranged on the inclined platform, the lifting component moves along the annular guide rail, and the vibrating component moves along the annular guide rail. The vibrating assembly is arranged on the lifting assembly, the sample barrel comprises a barrel body, an inner container and a water collecting assembly, the inner container and the water collecting assembly are arranged in the barrel body, the inner container is located above the water collecting assembly, the sample barrel is used for containing a concrete sample, and the lifting vibrating mechanism can be inserted into the concrete sample for vibrating, so that pores and gaps in the concrete sample are reduced; the pneumatic vibrator vibrates the concrete sample to eliminate an insertion hole left in the concrete sample by the lifting vibration mechanism, and the inclined platform can enable the sample barrel to incline, so that the suction pipe can conveniently suck water into the water collection assembly to measure the bleeding amount of the concrete sample.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete detection, in particular to a device for testing the water seepage of underwater non-dispersible concrete. Background Art

[0002] Underwater non-dispersible concrete is a special type of concrete that can maintain stability in an underwater environment and does not disperse, thereby ensuring the project quality and structural strength during underwater pouring. Among them, water seepage, as one of the core characteristics of underwater non-dispersible concrete, determines the stability and durability of concrete underwater. Concrete with good water seepage can effectively resist the scouring and penetration of water flow and maintain the integrity of the structure.

[0003] According to existing test procedures, the detection of water seepage of concrete samples usually involves multiple steps, including the preparation of concrete samples, the removal of cracks and air in concrete samples, the measurement of water seepage, etc. The entire detection process is cumbersome and mostly needs to be completed manually, which not only increases the labor intensity of testers, but also makes the accuracy of test results largely dependent on the experience and technical level of testers.

[0004] When a large number of concrete samples need to be tested, this manual testing method is not only inefficient, but may also lead to poor stability of the test results and difficulty in ensuring consistency. In addition, long-term and high-intensity testing work will also bring great work pressure to the testers, thereby affecting their work status and the accuracy of the test results. Summary of the invention

[0005] The utility model aims to provide a device for testing the water seepage of underwater non-dispersible concrete in view of the problems existing in the prior art.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A device for testing the water permeability of underwater non-dispersible concrete comprises a lifting and vibrating mechanism, an inclined platform and a sample bucket, wherein the lifting and vibrating mechanism comprises an annular guide rail, a lifting assembly and a vibrating assembly, wherein the annular guide rail is arranged around the inclined platform, the sample bucket is arranged on the inclined platform, the lifting assembly moves along the annular guide rail, the vibrating assembly is arranged on the lifting assembly, and the sample bucket comprises a barrel body, an inner liner and a water collecting assembly, wherein the inner liner and the water collecting assembly are respectively arranged in the barrel body, and the inner liner is located above the water collecting assembly.

[0008] The sample barrel is used to accommodate concrete samples. The lifting and vibrating mechanism can be inserted into the concrete sample for vibration, thereby reducing the presence of pores and voids in the concrete sample and discharging bubbles therein. When it is necessary to absorb water from the surface of the concrete sample, the inner liner can be taken out of the barrel body, which is convenient for cleaning the inner liner after the test is completed. The tilting platform can tilt the sample barrel, which is convenient for the suction pipe to absorb water into the water collection component, thereby facilitating the measurement of water seepage of the concrete sample.

[0009] Preferably, the lifting assembly includes a screw mechanism, a guide rod, and a pulley trolley. The screw mechanism and the bottom of the guide rod are both provided with the pulley trolley, and the pulley trolley moves along the annular guide rail. The screw mechanism and the top of the guide rod are connected to each other through an annular connecting plate.

[0010] Preferably, the vibration assembly includes a hovering platform, a slider and an electric vibrator, the hovering platform is connected to the screw nut of the screw mechanism through a first connecting rod, the hovering platform is slidably connected to the guide rod through a second connecting rod, a sliding groove is provided on the hovering platform, the slider is slidably connected to the sliding groove, and the electric vibrator is arranged on the slider.

[0011] The pulley trolley drives the screw mechanism or the guide rod to move along the annular guide rail, and the annular connecting plate ensures that the screw mechanism and the guide rod can move synchronously, so that the hovering platform can rotate 360° with the electric vibrator.

[0012] Preferably, the slide groove is arranged in a long strip shape, the hovering platform is in a disc shape, the slide groove is arranged along the symmetry axis of the hovering platform, and the vibrating assembly also includes an electric push rod, which is connected to the slider, and the extension and retraction direction of the electric push rod is parallel to the length direction of the slide groove.

[0013] The electric push rod enables the electric vibrator to move laterally along the slide groove, and the slider slides while the hovering platform rotates, so that the electric vibrator can tamp the concrete sample in a spiral trajectory according to the test procedures to ensure the overall uniformity of the concrete sample.

[0014] Preferably, a pneumatic vibrator is provided outside the barrel body, the pneumatic vibrator is arranged around the barrel body, the pneumatic vibrator is connected to an air pump, a contact bracket is provided inside the barrel body, and the pneumatic vibrator contacts the inner liner through the contact bracket.

[0015] After the lifting and vibrating mechanism is pulled out from the concrete sample, the pneumatic vibrator is used to vibrate the concrete sample to eliminate the insertion holes left by the lifting and vibrating mechanism in the concrete sample.

[0016] Preferably, the sample barrel also includes a barrel cover, on which a straw and a transfer pipe are provided, the straw extends into the interior of the inner tank, a transfer port is provided on the top of the barrel body, the water inlet hose of the water collection assembly passes through the gap between the barrel body and the inner tank and is connected to the transfer port, and the straw is connected to the transfer port through the transfer pipe.

[0017] The barrel cover is used to seal the inner liner to prevent water evaporation. During the installation of the barrel cover, the transfer pipe can be used to connect the suction pipe and the water collecting assembly, so that the entire water suction pipeline can avoid the inner liner, thereby avoiding blocking the water inlet of the water suction pipeline or polluting the water suction pipeline when the concrete sample is placed in the inner liner.

[0018] Preferably, the tilting platform comprises a base, a cylinder and a placement platform, the sample barrel is arranged on the placement platform, one end of the placement platform is rotatably connected to the base, and the other end is connected to the base through the cylinder, and the cylinder is hinged to the placement platform and the base respectively.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] The sample bucket in the utility model is used to accommodate concrete samples. The lifting and vibrating mechanism can be inserted into the concrete sample for vibration, thereby reducing the existence of pores and gaps in the concrete sample and discharging bubbles therein. After the lifting and vibrating mechanism is pulled out from the concrete sample, the pneumatic vibrator is used to vibrate the concrete sample to eliminate the insertion holes left by the lifting and vibrating mechanism in the concrete sample. When it is necessary to absorb water on the surface of the concrete sample, the inclined platform can tilt the sample bucket, making it convenient for a suction pipe to absorb water into a water collecting component, thereby measuring the water seepage of the concrete sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0022] Figure 2 This is a structural schematic diagram of the lifting and vibrating mechanism in the embodiment of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the tilting platform and the sample barrel in the embodiment of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the barrel in the embodiment of the utility model;

[0025] In the figure: 1. base; 101. cylinder; 102. placement platform; 2. barrel body; 201. barrel cover; 202. liner; 203. opening; 204. adapter; 205. straw; 206. adapter pipeline; 3. annular guide rail; 4. screw mechanism; 401. guide rod; 402. pulley trolley; 5. annular connecting plate; 6. electric vibrator; 7. hovering platform; 701. slider; 702. electric push rod; 8. pneumatic vibrator. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as "middle", "upper", "lower", "left", "right", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0028] like Figures 1 to 4 As shown, the specific scheme of the embodiment is as follows: an underwater non-dispersible concrete water permeability testing device includes a lifting and vibrating mechanism, an inclined platform and a sample bucket, the sample bucket is arranged on the inclined platform, the inclined platform includes a base 1, a cylinder 101 and a placement platform 102, the sample bucket is arranged on the placement platform 102, one end of the placement platform 102 is rotatably connected to the base 1, and the other end is connected to the base 1 through the cylinder 101, and the cylinder 101 is hinged to the placement platform 102 and the base 1 respectively.

[0029] When the sample barrel needs to be tilted, the cylinder 101 will extend to lift one end of the placement platform 102, so that the placement platform 102 is tilted. A weighing sensor is also provided on the placement platform 102 to facilitate weighing the sample barrel in an empty state and the sample barrel filled with concrete samples.

[0030] The lifting and vibrating mechanism includes an annular guide rail 3, a lifting assembly and a vibrating assembly. The annular guide rail 3 is arranged around the inclined platform. The lifting assembly includes a screw mechanism 4, a guide rod 401, and a pulley trolley 402. The bottom of the screw mechanism 4 and the guide rod 401 are both provided with a pulley trolley 402. The pulley trolley 402 is provided with a driving motor. The driving motor drives the wheels of the pulley trolley 402 to rotate through a reducer, so that the pulley trolley 402 moves along the annular guide rail 3.

[0031] The tops of the lead screw mechanism 4 and the guide rod 401 are connected to each other via an annular connecting plate 5, which ensures that the lead screw mechanism 4 and the guide rod 401 can move synchronously, so that the annular connecting plate 5 can rotate 360° around the tilting platform.

[0032] The vibrating assembly is arranged on the lifting assembly, and the vibrating assembly includes a hovering platform 7, a slider 701 and an electric vibrator 6. The hovering platform 7 is connected to the screw nut of the screw mechanism 4 through a first connecting rod, and the hovering platform 7 is slidingly connected to the guide rod 401 through a second connecting rod. The screw mechanism 4 drives the hovering platform 7 to move up and down, and the guide rod 401 keeps the hovering platform 7 stable during movement.

[0033] The hovering platform 7 is disc-shaped, and a slide groove is provided on the hovering platform 7. The slide groove is arranged in a long strip shape. The slider 701 is slidably connected to the slide groove. The electric vibrator 6 passes through the slide groove and is arranged on the slider 701. The slide groove is arranged along the symmetry axis of the hovering platform 7. The vibration assembly also includes an electric push rod 702. The electric push rod 702 is arranged on the hovering platform 7, and the electric push rod 702 is connected to the slider 701. The extension direction of the electric push rod 702 is parallel to the length direction of the slide groove.

[0034] The electric push rod 702 enables the electric vibrator 6 to move laterally along the slide groove. When the hovering platform 7 rotates, the slider 701 slides, so that the electric vibrator 6 can insert and tamp the concrete sample in a spiral trajectory.

[0035] The sample barrel includes a barrel body 2, a barrel cover 201, an inner liner 202 and a water collecting assembly. The water collecting assembly is arranged at the bottom of the barrel body 2. The water collecting assembly includes a container with a scale, a water pump and a water inlet hose. The water inlet of the container is connected through the water pump and the water inlet hose. An opening 203 is provided at the bottom of the barrel body 2. The opening 203 is convenient for observing the water level in the container on the one hand, and for taking out the container from the barrel body 2 on the other hand.

[0036] The barrel body 2 is provided with a partition above the water collecting assembly, the inner liner 202 is placed on the partition, and a limit block is provided on the partition, which is used to limit the position of the inner liner 202.

[0037] A pneumatic vibrator 8 is provided on the outside of the barrel body 2, and the pneumatic vibrator 8 is arranged around the barrel body 2. The pneumatic vibrator 8 is connected to the air pump. A contact bracket is provided inside the barrel body 2, and the pneumatic vibrator 8 contacts the inner liner 202 through the contact bracket. The vibration of the pneumatic vibrator 8 is transmitted to the inner liner 202 through the contact bracket.

[0038] A transfer port 204 is provided on the top of the barrel body 2, and the transfer port 204 is located between the barrel body 2 and the inner liner 202. The water inlet hose of the water collection assembly passes through the gap between the barrel body 2 and the inner liner 202 and is connected to the transfer port 204. The transfer port 204 is used to fix the water inlet hose.

[0039] The barrel cover 201 is provided with a straw 205 and a transfer pipe 206. The straw 205 is tiltedly arranged on the barrel cover 201 to facilitate water absorption when the barrel body 2 is tilted. The straw 205 passes through the barrel cover 201 and is threadedly connected to the barrel cover 201 to facilitate adjustment of the length of the straw 205 extending into the barrel cover 201. The transfer pipe 206 includes a plug-in column and a connecting hose. The plug-in column is arranged on the barrel cover 201. The plug-in column is used to be inserted into the transfer port 204 when installing the barrel cover 201. The connecting hose is used to connect the straw 205 and the plug-in column, so that water enters the container through the straw 205, the connecting hose, the plug-in column, the transfer port 204, the water inlet hose and the water pump.

[0040] According to the test procedures, the method of use of this embodiment is as follows:

[0041] The concrete sample is poured into the inner tank 202, and the lifting and vibrating mechanism inserts and tamps the concrete sample in a spiral trajectory. Then the vibrating assembly will move away from the inner tank 202, and the pneumatic vibrator 8 will vibrate the concrete sample to eliminate the insertion holes left by the lifting and vibrating mechanism in the concrete sample. Then the barrel cover 201 is closed to start the water seepage test.

[0042] After the test begins, within the first 60 minutes of the test, the tilting platform will tilt the sample bucket every 10 minutes to make the water on the surface of the concrete sample flow to one side, so that the pipette 205 can suck water into the container within the preset time. After each water absorption, the platform is tilted to restore the sample bucket to a horizontal level. After 60 minutes, water is absorbed every 30 minutes until there is no change in the water level in the container after three consecutive water absorptions. The test is completed, and the water seepage of the concrete sample is determined according to the container scale. To ensure accuracy, the container can be taken out for further measurement.

[0043] 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An underwater non-dispersible concrete water seepage test device, comprising a lifting and vibrating mechanism, an inclined platform and a sample bucket, characterized in that: The lifting and vibrating mechanism includes an annular guide rail, a lifting assembly and a vibrating assembly. The annular guide rail is arranged around the inclined platform. The sample barrel is arranged on the inclined platform. The lifting assembly moves along the annular guide rail. The vibrating assembly is arranged on the lifting assembly. The sample barrel includes a barrel body, an inner liner and a water collecting assembly. The inner liner and the water collecting assembly are respectively arranged in the barrel body, and the inner liner is located above the water collecting assembly.

2. The device for testing water permeability of underwater non-dispersible concrete according to claim 1, characterized in that: The lifting assembly includes a screw mechanism, a guide rod, and a pulley trolley. The screw mechanism and the bottom of the guide rod are both provided with the pulley trolley, and the pulley trolley moves along the annular guide rail. The screw mechanism and the top of the guide rod are connected to each other through an annular connecting plate.

3. The device for testing water permeability of underwater non-dispersible concrete according to claim 2, characterized in that: The vibration assembly includes a hovering platform, a slider and an electric vibrator. The hovering platform is connected to the screw nut of the screw mechanism through a first connecting rod. The hovering platform is slidably connected to the guide rod through a second connecting rod. A sliding groove is provided on the hovering platform. The slider is slidably connected to the sliding groove. The electric vibrator is arranged on the slider.

4. The device for testing water permeability of underwater non-dispersible concrete according to claim 3, characterized in that: The slide groove is arranged in a long strip shape, the hovering platform is in a disc shape, the slide groove is arranged along the symmetry axis of the hovering platform, and the vibrating assembly also includes an electric push rod, which is connected to the slider, and the telescopic direction of the electric push rod is parallel to the length direction of the slide groove.

5. The device for testing water permeability of underwater non-dispersible concrete according to claim 1, characterized in that: A pneumatic vibrator is provided outside the barrel body, the pneumatic vibrator is arranged around the barrel body, the pneumatic vibrator is connected to an air pump, a contact bracket is provided inside the barrel body, and the pneumatic vibrator contacts the inner container through the contact bracket.

6. The device for testing water permeability of underwater non-dispersible concrete according to claim 1, characterized in that: The sample barrel also includes a barrel cover, which is provided with a straw and a transfer pipe. The straw extends into the interior of the inner tank. A transfer port is provided on the top of the barrel body. The water inlet hose of the water collection assembly passes through the gap between the barrel body and the inner tank and is connected to the transfer port. The straw is connected to the transfer port through the transfer pipe.

7. The device for testing water permeability of underwater non-dispersible concrete according to claim 1, characterized in that: The tilting platform includes a base, a cylinder and a placement platform. The sample barrel is arranged on the placement platform. One end of the placement platform is rotatably connected to the base and the other end is connected to the base through the cylinder. The cylinder is hinged to the placement platform and the base respectively.

Images