Stable pressure loader for geotechnical compression test

Abstract

The utility model discloses a soil engineering compression test stable pressure loader, which relates to the technical field of pressure loaders, and comprises a base, the upper side of the base is fixedly connected with a sucking pump, the upper side of the base is fixedly connected with a fixed seat, an input pipe of the sucking pump is fixedly connected with the fixed seat in a penetrating manner, and the input pipe of the sucking pump is fixedly connected with the fixed seat. A plurality of metal pipes are fixedly connected to the upper side of the fixing base in a penetrating mode, telescopic columns are slidably connected to the upper sides of the metal pipes in a penetrating mode, a top plate is fixedly connected to the upper ends of the telescopic columns, and a pressing block is fixedly connected to the lower side of the top plate. The first motor, the threaded rod, the movable block, the connecting plate, the movable block, the limiting plate, the chute and the connecting rod are matched with one another, so that a gap between an input pipe of an air extracting pump and the device can be sealed, air can be effectively prevented from entering and exiting through sealing, a stable air pressure environment is created for a soil sample, and the sampling efficiency is improved. Therefore, the accuracy of the air pressure condition in the test process is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to pressure loader technical field, concretely relates to a geotechnical compression test stable pressure loader. BACKGROUND

[0002] The geotechnical compression test stable pressure loader is an equipment for providing stable and controllable pressure when carrying out compression test on soil sample, loading the soil sample by using gas pressure, usually controlling the size of loading by adjusting the pressure of gas, having the advantages of uniform loading, no vibration and the like, and being applicable to compression test with less disturbance to soil sample.

[0003] The prior art has the following problems:

[0004] In the process of using the existing device, the gap between the input pipe of the air pump and the device cannot be sealed, if the gap of the pipe is not sealed well, the pressure will leak at the gap, resulting in uneven pressure on each part of the soil sample, which will make the compression deformation of the soil sample inconsistent with the actual situation, and the compression characteristics of the soil sample under different pressures cannot be accurately measured, and a large amount of power consumption is required for the air pump to reach the required pressure value, in addition, the existing device cannot disassemble and replace the pressure sensor while using the device, different geotechnical compression tests may require different pressure ranges, if the pressure sensor cannot be replaced, when the required pressure of the test exceeds the range of the existing sensor, the corresponding test cannot be carried out, which limits the application range of the test device, and when the pressure sensor fails, the entire loader may need to be repaired due to the inability to be disassembled and replaced individually, which will greatly increase the maintenance cost. UTILITY MODEL CONTENTS

[0005] The utility model provides a geotechnical compression test stable pressure loader to solve the problems in the above background art.

[0006] To solve the above technical problems, the utility model adopts the following technical scheme:

[0007] A geotechnical compression test stable pressure loader, comprising a base, an air pump fixedly connected to the upper side of the base, a fixed seat fixedly connected to the upper side of the base, an input pipe of the air pump and the fixed seat being fixedly connected through penetration, a plurality of metal pipes fixedly connected to the upper side of the fixed seat through penetration, a telescopic column slidingly connected to the upper side of the metal pipe through penetration, a top plate fixedly connected to the upper end of the telescopic column, a pressing block fixedly connected to the lower side of the top plate, a fixed column fixedly connected to the upper side of the fixed seat, and a connecting column movably connected to the upper side of the fixed column.

[0008] The further improvement in the utility model technical scheme lies in that: the inner wall of the fixed seat is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a threaded rod, the outer wall of the threaded rod is threadedly connected with a movable block, the left and right sides of the movable block are both rotatably connected with a connecting plate, the other end of the connecting plate is rotatably connected with a moving block, the inner wall of the fixed seat is fixedly connected with a limiting plate, and the outer wall of the limiting plate is slidably connected with the moving block.

[0009] The further improvement in the utility model technical scheme lies in that: the upper side of the moving block is provided with an inclined groove, the inner surface of the inclined groove is slidably connected with a connecting rod, the other end of the connecting rod is fixedly connected with a movable frame, the outer wall of the movable frame is fixedly connected with a supporting plate, the inner wall front side of the fixed seat is fixedly connected with a guide rod, the outer wall of the guide rod is slidably connected with the supporting plate, the inner wall front side of the fixed seat is provided with a sealing strip, and the front side of the movable frame is movably connected with the sealing strip.

[0010] The further improvement in the utility model technical scheme lies in that: the lower end of the telescopic column is fixedly connected with a piston, and the outer wall of the piston is slidably connected with the metal pipe.

[0011] The further improvement in the utility model technical scheme lies in that: the inner wall of the connecting column is movably connected with a containing disc, the inner wall lower side of the connecting column is fixedly connected with a pressure sensor, the lower side of the connecting column is fixedly connected with a clamping column, and the upper side of the pressure sensor is movably connected with the containing disc.

[0012] The further improvement in the utility model technical scheme lies in that: the inside of the fixed column is provided with a second motor, the output shaft of the second motor is fixedly connected with a rotating disc, the upper side of the rotating disc is provided with a plurality of arc grooves, the inner surface of the arc groove is slidably connected with a limiting column, the upper end of the limiting column is fixedly connected with an L-shaped clamping block, the inner wall of the fixed column is fixedly connected with a plurality of guide plates, the outer wall of the guide plate is slidably connected with the L-shaped clamping block, and the outer wall of the L-shaped clamping block is movably connected with the clamping column.

[0013] Due to the adoption of the above technical scheme, the utility model has the following technical progress compared with the prior art:

[0014] 1、The utility model provides a kind of geotechnical compression test stable pressure loader, the cooperation of first motor, threaded rod, movable block, connecting plate, moving block, limiting plate, inclined groove and connecting rod can seal the gap between air pump input pipe and device, air can be effectively prevented by sealing from entering and exiting, create a stable air pressure environment for soil sample, to ensure the accuracy of air pressure condition in the process of test.

[0015] 2, the utility model provides a geotechnical compression test stable pressure loader, through the cooperation of the clamping column, second motor, carousel, arc slot, limit post, L shape clamping block and guide plate, can dismantle and replace pressure sensor, through can dismantle and replace pressure sensor, can select appropriate range and precision sensor according to the demand of specific test, improve the accuracy and flexibility of test, and can conveniently dismantle and replace pressure sensor, make the maintenance and overhaul work of equipment more easily carry out. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is overall structure schematic diagram of the utility model;

[0017] Figure 2 It is internal structure schematic diagram of the utility model;

[0018] Figure 3 It is Figure 2 It is structure enlarged schematic diagram of A place in the middle;

[0019] Figure 4 It is partial structure internal schematic diagram of the utility model;

[0020] Figure 5 It is important structure schematic diagram of the utility model.

[0021] In the drawing: 1, base;2, air suction pump;3, fixed seat;4, metal pipe;5, fixed column;6, connecting column;7, top plate;8, telescopic column;9, pressing block;10, first motor;11, threaded rod;12, movable block;13, connecting plate;14, moving block;15, limit plate;16, inclined slot;17, connecting rod;18, guide rod;19, support plate;20, movable frame;21, sealing strip;22, piston;23, containing disc;24, pressure sensor;25, clamping column;26, second motor;27, carousel;28, arc slot;29, limit post;30, L shape clamping block;31, guide plate. DETAILED DESCRIPTION

[0022] In order to make the technical means, creation features, purposes and effects realized by the utility model easy to understand, the utility model is further described as follows in combination with specific embodiments:

[0023] For example, Figure 1The utility model provides a kind of geotechnical compression test stable pressure loader, including base 1, the upside of base 1 is fixedly connected with suction pump 2, the upside of base 1 is fixedly connected with fixed seat 3, the input pipe of suction pump 2 is fixedly connected with fixed seat 3, the upside of fixed seat 3 is fixedly connected with multiple metal pipes 4, the upside of metal pipe 4 is fixedly connected with telescopic column 8, the upper end of telescopic column 8 is fixedly connected with top plate 7, the downside of top plate 7 is fixedly connected with briquetting 9, the upside of fixed seat 3 is fixedly connected with fixed column 5, the upside of fixed column 5 is movably connected with connecting column 6, in the process of using device, first geotechnical sample is placed in the inside of connecting column 6, then start suction pump 2, suction pump 2 can extract the air in the inside of fixed seat 3, now the gap at the input pipe of suction pump 2 needs to be sealed, when the air pressure in the inside of fixed seat 3 is small, telescopic column 8 will drive top plate 7 to descend, so as to can drive briquetting 9 to descend, extrude and compress geotechnical sample in the inside of connecting column 6, holding tray 23 can extrude pressure sensor 24 when descending, so as to can see pressure value.

[0024] As Figures 2-4 The utility model provides a technical scheme: preferably, the inner wall of fixed seat 3 is fixedly connected with first motor 10, the output of first motor 10 is fixedly connected with threaded rod 11, the outer wall of threaded rod 11 is threadedly connected with movable block 12, the left and right sides of movable block 12 are rotatably connected with connecting plate 13, the other end of connecting plate 13 is rotatably connected with moving block 14, the inner wall of fixed seat 3 is fixedly connected with limit plate 15, the outer wall of limit plate 15 is slidably connected with moving block 14, the upside of moving block 14 is provided with inclined slot 16, the inner surface of inclined slot 16 is slidably connected with connecting rod 17, the other end of connecting rod 17 is fixedly connected with movable frame 20, the outer wall of movable frame 20 is fixedly connected with branch plate 19, the inner wall front side of fixed seat 3 is fixedly connected with guide rod 18, the outer wall of guide rod 18 is slidably connected with branch plate 19, the inner wall front side of fixed seat 3 is provided with sealing strip 21, the front side of movable frame 20 is movably connected with sealing strip 21, the lower end of telescopic column 8 is fixedly connected with piston 22, the outer wall of piston 22 is slidably connected with metal pipe 4, when the gap is sealed, first motor 10 can be started, first motor 10 can drive threaded rod 11 to rotate, threaded rod 11 rotates and drives movable block 12 to move, so as to can drive two connecting plate 13 to rotate, connecting plate 13 rotates and drives two moving block 14 to move to middle or opposite direction, when moving block 14 moves to middle, can drive inclined slot 16 to move, so as to can drive connecting rod 17 to move forward and backward, connecting rod 17 moves and drives movable frame 20 to move, movable frame 20 moves and extrudes sealing strip 21, so as to improve the sealing property of device, can effectively prevent the in and out of air, create a stable air pressure environment for soil sample.

[0025] AsFigure 5 As shown, this utility model provides a technical solution: Preferably, a holding tray 23 is movably connected to the inner wall of the connecting column 6, and a pressure sensor 24 is fixedly connected to the lower side of the inner wall of the connecting column 6. The pressure sensor 24 is existing technology and will not be described in detail here. A snap-fit ​​column 25 is fixedly connected to the lower side of the connecting column 6, and the upper side of the pressure sensor 24 is movably connected to the holding tray 23. A second motor 26 is provided inside the fixed column 5, and a turntable 27 is fixedly connected to the output shaft of the second motor 26. Several arc-shaped grooves 28 are opened on the upper side of the turntable 27. Limiting columns 29 are slidably connected to the inner surface of the arc-shaped grooves 28. An L-shaped locking block 30 is fixedly connected to the upper end of the limiting column 29. The inner wall of the fixed column 5 is fixedly connected to... Multiple guide plates 31 are provided. The outer wall of the guide plate 31 is slidably connected to the L-shaped locking block 30. The outer wall of the L-shaped locking block 30 is movably connected to the locking post 25. When the connecting post 6 needs to be disassembled after long-term use, the second motor 26 can be started. The second motor 26 can drive the turntable 27 to rotate. The rotation of the turntable 27 can drive the arc groove 28 to rotate. The cooperation between the arc groove 28 and the limiting post 29 can drive the L-shaped locking block 30 to move on the guide plate 31. When the guide plate 31 is disengaged from the inside of the locking post 25, the connecting post 6 can be disassembled to inspect and repair the pressure sensor 24. This makes it easier to disassemble and replace the pressure sensor 24, making the maintenance and repair of the equipment easier.

[0026] The working principle of this geotechnical compression test stable pressure loader will be explained in detail below.

[0027] like Figures 1-5As shown, in the process of using the device, first, the soil sample is placed in the inside of the connecting column 6, then the air suction pump 2 is started, the air suction pump 2 can suck out the air in the inside of the fixed seat 3, at this time, the gap at the input pipe of the air suction pump 2 needs to be sealed, when the gap is sealed, the first motor 10 can be started, the first motor 10 can drive the threaded rod 11 to rotate, the threaded rod 11 rotates to drive the movable block 12 to move, so as to drive the two connecting plates 13 to rotate, the connecting plates 13 rotate to drive the two moving blocks 14 to move towards the middle or the opposite direction, when the moving blocks 14 move towards the middle, the inclined chute 16 can be moved, so as to drive the connecting rod 17 to move forward and backward, the connecting rod 17 moves to drive the movable frame 20 to move, the movable frame 20 moves to extrude the sealing strip 21, so as to improve the sealing performance of the device, which can effectively prevent the air from entering and leaving, and create a stable air pressure environment for the soil sample, when the air pressure in the inside of the fixed seat 3 decreases, the telescopic column 8 drives the top plate 7 to descend, so as to drive the pressing block 9 to descend, the soil sample in the inside of the connecting column 6 is extruded and compressed, the containing disc 23 descends to extrude the pressure sensor 24, so that the pressure value can be seen, when the device is used for a long time and needs to be disassembled, the second motor 26 can be started, the second motor 26 drives the rotating disc 27 to rotate, the rotating disc 27 rotates to drive the arc-shaped groove 28 to rotate, the arc-shaped groove 28 cooperates with the limiting column 29 to drive the L-shaped clamping block 30 to move on the guide plate 31, when the guide plate 31 is separated from the inside of the clamping column 25, the connecting column 6 can be disassembled, the pressure sensor 24 is checked and maintained, the pressure sensor 24 can be conveniently disassembled and replaced, so that the maintenance and repair work of the equipment is more easily carried out.

[0028] The above has made a detailed description of the present application in general, but some modifications or improvements can be made on the basis of the present application, which is obvious to those skilled in the art. Therefore, the modifications or improvements without departing from the spirit of the present application are within the scope of the present application.

Claims

1. A geotechnical compression test stable pressure loader characterized by: The utility model provides a kind of air extraction pump, including base (1), the upper side of the base (1) is fixedly connected with suction pump (2), the upper side of the base (1) is fixedly connected with fixed seat (3), the input pipe of suction pump (2) is fixedly connected with fixed seat (3) and is penetrated, the upper side of the fixed seat (3) is penetrated and is fixedly connected with multiple metal pipes (4), the upper side of the metal pipe (4) is slidably connected with telescopic column (8), the upper end of the telescopic column (8) is fixedly connected with top plate (7), the lower side of the top plate (7) is fixedly connected with pressure block (9), the upper side of the fixed seat (3) is fixedly connected with fixed column (5), the upper side of the fixed column (5) is movably connected with connecting column (6).

2. A stable pressure loader for geotechnical compression tests according to claim 1, characterized in that: The inner wall of the fixed seat (3) is fixedly connected with a first motor (10), the output end of the first motor (10) is fixedly connected with a threaded rod (11), the outer wall of the threaded rod (11) is threadedly connected with a movable block (12), the left and right sides of the movable block (12) are both rotatably connected with a connecting plate (13), the other end of the connecting plate (13) is rotatably connected with a moving block (14), the inner wall of the fixed seat (3) is fixedly connected with a limiting plate (15), and the outer wall of the limiting plate (15) is slidably connected with the moving block (14).

3. A geotechnical compression test stable pressure loader as claimed in claim 2, wherein: The upper side of the moving block (14) is provided with an inclined chute (16), the inner surface of the inclined chute (16) is slidably connected with a connecting rod (17), the other end of the connecting rod (17) is fixedly connected with a movable frame (20), the outer wall of the movable frame (20) is fixedly connected with a support plate (19), the inner wall of the fixed seat (3) is fixedly connected with a guide rod (18), the outer wall of the guide rod (18) is slidably connected with the support plate (19), the inner wall of the fixed seat (3) is provided with a sealing strip (21), and the front side of the movable frame (20) is movably connected with the sealing strip (21).

4. The stable pressure loader for geotechnical compression testing of claim 1, wherein: The lower end of the telescopic column (8) is fixedly connected with a piston (22), and the outer wall of the piston (22) is slidably connected with the metal pipe (4).

5. The stable pressure loader for geotechnical compression testing of claim 1, wherein: The inner wall of the connecting column (6) is movably connected with a containing disc (23), the inner wall of the connecting column (6) is fixedly connected with a pressure sensor (24) on the lower side, the lower side of the connecting column (6) is fixedly connected with a clamping column (25), and the upper side of the pressure sensor (24) is movably connected with the containing disc (23).

6. A geotechnical compression test stable pressure loader as claimed in claim 5, wherein: The inside of the fixed column (5) is provided with a second motor (26), the output shaft of the second motor (26) is fixedly connected with a rotating disc (27), the upper side of the rotating disc (27) is provided with a plurality of arc grooves (28), the inner surface of the arc groove (28) is slidably connected with a limiting column (29), the upper end of the limiting column (29) is fixedly connected with an L-shaped clamping block (30), the inner wall of the fixed column (5) is fixedly connected with a plurality of guide plates (31), the outer wall of the guide plate (31) is slidably connected with the L-shaped clamping block (30), and the outer wall of the L-shaped clamping block (30) is movably connected with the clamping column (25).

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