Underwater non-dispersible concrete cement loss amount testing device

Abstract

The utility model discloses an underwater non-dispersive concrete cement loss amount testing device which comprises a water containing barrel, a sample barrel, an air blast drying box and a support, a supporting plate is arranged at the top of the support, the air blast drying box and the water containing barrel are arranged above and below the supporting plate respectively, a lifting mechanism is arranged in the water containing barrel, and the supporting plate is connected with the water containing barrel through the lifting mechanism. A support plate is arranged on the support, a lifting mechanism is arranged on the support plate, a wide-mouth container is arranged on a tray of the lifting mechanism, a sample barrel is positioned between the wide-mouth container and the support plate, and the sample barrel is rotatably connected with the support through a connecting rod component. The lifting mechanism can feed the wide-mouth container into the air blast drying box, the concrete sample is dried through the air blast drying box, then the wide-mouth container is lowered to the preset height through the lifting mechanism, the concrete sample can be conveniently taken out for weighing, and the sample barrel can move to avoid blocking of lifting of the wide-mouth container.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete detection, in particular to an underwater non-dispersible concrete cement loss testing device. Background Art

[0002] The anti-dispersion property of underwater non-dispersible concrete is one of its core characteristics. This property enables the concrete to maintain its original structure and performance when poured underwater, and the aggregate and mud will not separate under the action of water. The anti-dispersion property of underwater non-dispersible concrete can be measured by measuring the cement loss by weighing method.

[0003] When using the weighing method to measure cement loss, it is necessary to simulate the underwater construction environment according to the test procedures, test the concrete samples, and then weigh them to compare the loss of concrete samples before and after the test. The less the loss, the better the stability of the concrete underwater, that is, the stronger the anti-dispersion.

[0004] When testing concrete samples in the existing technology, each step often requires manual participation. However, in the process of concrete production and construction, a large number of samples need to be taken to meet the requirements of the test procedures. Relying solely on manual testing of a large number of concrete samples in multiple batches will affect the test efficiency and waste a lot of manpower.

[0005] Therefore, a cement loss test device is needed, which can complete the test of concrete samples by itself and improve the test efficiency. Summary of the invention

[0006] The utility model aims to provide an underwater non-dispersible concrete cement loss test device to solve the problems existing in the prior art.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] An underwater non-dispersible concrete cement loss test device comprises a water bucket, a sample bucket, an air drying box and a bracket, wherein a support plate is provided on the top of the bracket, the air drying box and the water bucket are provided above and below the support plate respectively, a lifting mechanism is provided inside the water bucket, the support plate is connected to the water bucket via the lifting mechanism, a wide-mouth container is provided on a tray of the lifting mechanism, the sample bucket is located between the wide-mouth container and the support plate, and the sample bucket is rotatably connected to the bracket via a connecting rod assembly.

[0009] The utility model can automatically test the cement loss amount of concrete samples. The concrete sample only needs to be introduced into the sample barrel. The sample barrel can put the concrete sample into the wide-mouth container located underwater. The lifting mechanism can send the wide-mouth container into the blast drying box so that the blast drying box dries the concrete sample. The lifting mechanism then lowers the wide-mouth container to a preset height to facilitate taking out the concrete sample for weighing. The sample barrel can be moved away from between the wide-mouth container and the support plate to avoid the sample barrel blocking the lifting of the wide-mouth container.

[0010] Preferably, the lifting mechanism includes a screw lift, a vertical rod and a tray, the screw lift is provided with a screw nut, the screw nut is threadedly connected to the screw lift, the sleeve is slidably connected to the vertical rod, the vertical rod is provided with a sleeve, and the tray is respectively connected to the screw nut and the sleeve through a connecting rod.

[0011] The lead screw elevator is used to drive the pallet to move up and down, and the vertical rod and the lead screw elevator jointly limit the position of the pallet so that the pallet can be moved up and down horizontally.

[0012] Preferably, a first through hole is provided in the middle of the support plate, and the wide-mouth container passes through the first through hole. A second through hole is provided at the bottom of the blast drying box, and the wide-mouth container extends into the second through hole.

[0013] When the concrete sample needs to be dried, the lifting mechanism lifts the wide-mouth container so that the wide-mouth container extends into the blast drying box through the first through hole.

[0014] Preferably, the sample barrel is arranged opposite to the wide-mouth container, and the connecting rod assembly includes an H-shaped connecting rod, a transmission rod and a driving motor, the transmission rod is rotatably connected to the bracket, the driving motor is connected to the transmission rod, one end of the H-shaped connecting rod is arranged on the transmission rod, and the other end is rotatably connected to the sample barrel.

[0015] The driving motor drives the transmission rod to rotate, so that the transmission rod drives the sample barrel to move through the H-shaped connecting rod, so that the sample barrel moves away from above the wide-mouth container. The sample barrel is rotatably connected to the H-shaped connecting rod so that the sample barrel can remain horizontal.

[0016] Preferably, a discharge port is provided at the bottom of the sample barrel, a flip motor is provided outside the sample barrel, a flap is provided at the discharge port, the flap is rotatably connected to the sample barrel, and the flip motor is connected to one side of the flap.

[0017] The overturning motor drives the flap to rotate to close or open the discharge port, thereby controlling the sample bucket to release the concrete sample.

[0018] Preferably, a water inlet and a water outlet are provided at the lower half of the water holding tub, the water inlet is connected to a water inlet pipeline, and the water outlet is connected to a waste water tank via a drainage pump.

[0019] The water level in the water tub is controlled by the water inlet and the water outlet, so that the wide-mouth container is submerged in water to complete the test.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] The utility model can automatically test the cement loss amount of concrete samples. It only needs to introduce the concrete sample into a sample barrel. The sample barrel can put the concrete sample into a wide-mouth container located underwater. The lifting mechanism can send the wide-mouth container into a blast drying box so that the blast drying box dries the concrete sample. The lifting mechanism then lowers the wide-mouth container to a preset height, which is convenient for taking out the concrete sample for weighing. The sample barrel can be moved away from between the wide-mouth container and the support plate to avoid the sample barrel blocking the lifting of the wide-mouth container. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the embodiment of the utility model in the preparation stage;

[0023] Figure 2 This is a schematic diagram of the structure of drying a concrete sample in an embodiment of the utility model;

[0024] Figure 3 It is a schematic diagram of the structure of the cut-away water bucket and the bracket in the embodiment of the utility model;

[0025] In the figure: 1. water bucket; 2. sample bucket; 201. turning motor; 3. blast drying box; 301. second through hole; 4. bracket; 5. support plate; 501. first through hole; 6. wide-mouth container; 7. screw lift; 8. vertical rod; 9. tray; 10. connecting rod assembly. 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 3 As shown, the specific scheme of the embodiment is as follows: an underwater non-dispersible concrete cement loss test device includes a water bucket 1, a sample bucket 2, a blast drying box 3, a bracket 4 and a PLC controller, a support plate 5 is provided on the top of the bracket 4, and the blast drying box 3 and the water bucket 1 are respectively provided above and below the support plate 5.

[0029] A first through hole 501 is provided in the middle of the support plate 5 for the wide-mouth container 6 to pass through, and a second through hole 301 is provided at the bottom of the blast drying box 3 for the wide-mouth container 6 to extend into.

[0030] A lifting mechanism is provided in the water tub 1, and the lifting mechanism includes a screw lift 7, a vertical rod 8 and a tray 9. One end of the screw lift 7 is connected to the support plate 5, and the other end is arranged at the bottom of the water tub 1. One end of the vertical rod 8 is connected to the support plate 5, and the other end is arranged at the bottom of the water tub 1, and the vertical rod 8 is arranged parallel to the screw lift 7.

[0031] A lead screw nut is provided on the lead screw lift 7, the lead screw nut is connected to the lead screw lift 7 by threads, a sleeve is slidably connected to the vertical rod 8, a sleeve is provided on the vertical rod 8, and a tray 9 is respectively connected to the lead screw nut and the sleeve by connecting rods.

[0032] The screw of the screw lift 7 is provided with inductive proximity sensors, which are respectively located at the top and bottom of the screw. The PLC controller obtains the position of the screw nut through the inductive proximity sensors to control the screw lift 7 to drive the tray 9 to move up and down.

[0033] A wide-mouth container 6 is provided on the tray 9 , and the sample barrel 2 is located between the wide-mouth container 6 and the support plate 5 . The sample barrel 2 is rotatably connected to the bracket 4 via a connecting rod assembly 10 .

[0034] The sample barrel 2 is arranged opposite to the wide-mouth container 6. The connecting rod assembly 10 includes an H-shaped connecting rod, a transmission rod and a driving motor. The transmission rod is rotatably connected to the bracket 4, and the driving motor is connected to the transmission rod. One end of the H-shaped connecting rod is arranged on the transmission rod, and the other end is rotatably connected to the sample barrel 2.

[0035] A rotary encoder is provided on the transmission rod. The PLC controller obtains the rotation angle of the transmission rod through the rotary encoder, and then obtains the position of the sample barrel 2 according to the rotation angle to control the driving motor to drive the sample barrel 2 to move.

[0036] A discharge port is provided at the bottom of the sample barrel 2, a flip motor 201 is provided outside the sample barrel 2, a flap is provided at the discharge port, the flap is rotatably connected to the sample barrel 2, the flip motor 201 is connected to one side of the flap, and the PLC controller controls the start and stop of the flip motor 201 to control the flap to close or open the discharge port.

[0037] The lower part of the water tub 1 is provided with a water inlet and a drain, the water inlet is connected to the water inlet pipe, the water inlet pipe is provided with a water inlet pump, the drain is connected to the waste water tank through the drain pump, and the PLC controller controls the water level in the water tub 1 by controlling the water inlet pump and the drain pump.

[0038] The method of use of this embodiment according to the test procedure is as follows:

[0039] (1) In the preparation stage, the tray 9 is located at a preset height, which is located between the water bucket 1 and the blast drying box 3. The sample bucket 2 is located outside the water bucket 1, which is convenient for pouring the concrete sample into the sample bucket 2. At this time, the water inlet pump will supply water to the water bucket 1 so that the water level of the water bucket 1 reaches the preset value.

[0040] (2) Pour the concrete sample into the sample barrel 2 and start the test. The tray 9 will be lowered to the lowest position so that the wide-mouth container 6 is located below the water surface. Then the sample barrel 2 will be moved above the wide-mouth container 6. When the sample barrel 2 is moved into place, the flap will rotate to open the discharge port, allowing the concrete sample to fall into the wide-mouth container 6.

[0041] (3) Allow the concrete sample to stand for 5 minutes, rotate the flap to close the discharge port, and move the sample bucket 2 to the outside of the water bucket 1. When the sample bucket 2 is in place, the tray 9 will rise to the highest position, allowing the wide-mouth container 6 to extend into the air drying oven 3. When the tray 9 is in place, start the air drying oven 3 to dry the concrete sample, and at the same time, the drainage pump will drain the water in the water bucket 1.

[0042] (4) Allow the concrete sample to dry for 3 minutes, close the blast drying oven 3, lower the tray 9 to a preset height to facilitate taking out the wide-mouth container 6, weigh the concrete sample, and then enter the preparation stage again to wait for the next test.

[0043] Although 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 cement loss test device, comprising a water bucket, a sample bucket, a blast drying box and a bracket, characterized in that: A support plate is provided on the top of the bracket, and the blast drying box and the water tub are provided above and below the support plate respectively. A lifting mechanism is provided in the water tub, and the support plate is connected to the water tub via the lifting mechanism. A wide-mouth container is provided on the tray of the lifting mechanism, and the sample barrel is located between the wide-mouth container and the support plate. The sample barrel is rotatably connected to the bracket via a connecting rod assembly.

2. The underwater non-dispersible concrete cement loss test device according to claim 1, characterized in that: The lifting mechanism includes a screw lift, a vertical rod, a sleeve and a tray. The screw lift is provided with a screw nut, the screw nut is connected to the screw lift by a thread, the sleeve is slidably connected to the vertical rod, the vertical rod is provided with a sleeve, and the tray is respectively connected to the screw nut and the sleeve by a connecting rod.

3. The underwater non-dispersible concrete cement loss test device according to claim 1, characterized in that: A first through hole is provided in the middle of the support plate, and the wide-mouth container passes through the first through hole. A second through hole is provided at the bottom of the blast drying box, and the wide-mouth container extends into the second through hole.

4. The underwater non-dispersible concrete cement loss test device according to claim 1, characterized in that: The sample barrel is arranged opposite to the wide-mouth container, and the connecting rod assembly includes an H-shaped connecting rod, a transmission rod and a driving motor. The transmission rod is rotatably connected to the bracket, and the driving motor is connected to the transmission rod. One end of the H-shaped connecting rod is arranged on the transmission rod, and the other end is rotatably connected to the sample barrel.

5. The underwater non-dispersible concrete cement loss test device according to claim 1, characterized in that: A discharge port is provided at the bottom of the sample barrel, a turning motor is provided outside the sample barrel, a flap is provided at the discharge port, the flap is rotatably connected to the sample barrel, and the turning motor is connected to one side of the flap.

6. The underwater non-dispersible concrete cement loss test device according to claim 1, characterized in that: The lower part of the water storage tub is provided with a water inlet and a water outlet, the water inlet is communicated with a water inlet pipeline, and the water outlet is communicated with a waste water tank through a drainage pump.

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