A porosity measuring device for stone-filled roadbed

Abstract

The present invention relates to the technical field of stone-filled roadbed inspection, and specifically to a device for measuring the porosity of stone-filled roadbed, comprising a water tank, an annular plate is arranged at the outer end of the water tank, a mounting cylinder is arranged at the middle position of the lower end of the water tank, the lower end of the mounting cylinder is slidably connected to a movable column, a mounting plate is arranged at the outer end of the movable column, a straight cylinder is arranged on the lower side of the mounting plate, a plurality of first elastic members are equidistantly arranged between the mounting plate and the straight cylinder, a first lifting device is installed between the mounting plate and the water tank, a piston is arranged at the lower outer end of the movable column, a base plate is arranged at the lower outer end of the straight cylinder, the lower end of the base plate is detachably connected to a water bag, an overflow pipe is arranged at the upper end of the piston, and the upper end of the overflow pipe is threadedly connected to a test tube. This design realizes the application of pressure on the water in the water bag so that there is an appropriate amount of water in the water bag, effectively reduces the probability of folding in the water bag, effectively ensures that the water bag is closely fitted to the inner wall of the test hole, and effectively reduces the probability of too much or too little water being transported into the water bag, and effectively ensures the measurement effect and accuracy.

Description

Technical Field

[0001] The invention discloses a device for measuring the porosity of a rock-filled roadbed, and belongs to the technical field of rock-filled roadbed inspection. Background Art

[0002] The existing porosity test of rock-filled roadbed is mostly carried out by water injection method. An important process in the water injection method is to inject a certain volume of water into the test pit, and the injected water is equal to the volume of the test pit. Then, the injected water volume and the soil produced by digging the test pit are analyzed and calculated, and then the porosity of the rock-filled roadbed is measured by comparative analysis of the physical properties of water and soil.

[0003] At present, when measuring the porosity of a rock-filled roadbed, a test pit is first excavated on the rock-filled roadbed, and the soil volume and other information generated by the excavation are measured and recorded. Then, a plastic film is laid in the test pit, and then water is released into the plastic film laid in the test pit through a water tank. The water volume in the test pit is calculated and recorded by the water volume in the water tank, and then the water volume in the test pit is compared and calculated with the soil volume and other information to complete the measurement of the porosity of the rock-filled roadbed.

[0004] However, during the process of laying the plastic film in the test pit, the laid plastic film is prone to folding, resulting in the plastic film being unable to fully fit the inner wall of the test pit, and during the process of releasing water into the plastic film in the test pit, water is prone to overflow from the test pit or water is not properly placed in the test pit, which will affect the calculation accuracy of the water volume in the test pit and the subsequent measurement effect and accuracy of the porosity of the stone-filled roadbed. Summary of the invention

[0005] In view of the problems in the prior art, the present invention provides a device for measuring the porosity of a stone-filled roadbed.

[0006] The technical solution adopted by the present invention to solve its technical problems is: a porosity measuring device for a stone-filled roadbed, comprising a water tank, an annular plate is arranged at the outer end of the water tank, and the lower end surface of the annular plate coincides with the lower end surface of the water tank, a mounting cylinder is arranged at the middle position of the lower end of the water tank, the lower end of the mounting cylinder is slidably connected to a movable column, and the movable column extends into the mounting cylinder, a mounting plate is arranged at the outer end of the movable column, and the mounting plate is located at the lower side of the mounting cylinder, a straight cylinder is arranged at the lower side of the mounting plate, and the straight cylinder is transparent, a plurality of first elastic members are equidistantly arranged between the mounting plate and the straight cylinder, and the first elastic member is located at the outer side of the mounting cylinder, a first lifting device is arranged between the mounting plate and the water tank, and the first lifting device is located on the left side of the first elastic member, a piston is arranged at the lower outer end of the movable column, and the piston is slidably connected in the straight cylinder, a base plate is arranged at the lower outer end of the straight cylinder, and the lower end surface of the base plate coincides with the lower end surface of the straight cylinder, the lower end of the base plate is detachably connected to a water bag, and the water bag is arranged in communication with the straight cylinder;

[0007] An overflow pipe is installed at the upper end of the piston, and the overflow pipe extends to the lower end of the piston. A first one-way valve is installed on the overflow pipe. The upper end of the overflow pipe is threadedly connected to a test tube, and the test tube is located on the lower side of the mounting plate. A lifting piece is arranged at the edge of the lower end of the annular plate. A functional part is installed at the upper front end of the annular plate, and one end of the functional part is connected to the front end of the water tank, and the other end of the functional part is connected to a movable column, and the connection position between the functional part and the movable column is located between the straight cylinder and the mounting plate. A hose is arranged in the middle position of the lower end of the movable column, and the upper end of the hose extends into the movable column and is connected to the functional part. A second one-way valve is installed on the hose, and the lower end of the hose extends into the water bag. A pit digging piece is installed at the lower rear end of the annular plate, and the pit digging piece is located on the rear side of the base plate.

[0008] Further, the digging member includes a second lifting device, the fixed part of the second lifting device is installed on the lower end of the rear part of the annular plate, a movable plate is arranged at the lower end of the movable part of the second lifting device, and the movable plate is located at the rear side of the base plate, a second telescopic rod is installed at the upper end of the movable plate, and the other end of the second telescopic rod is arranged at the lower side of the water tank, and the middle position of the lower end of the movable plate is rotatably connected to the auxiliary gear;

[0009] The outer end of the auxiliary gear meshes with the rotating gear, and the rotating gear is located on the lower side of the moving plate. A first driving device is arranged at the upper end of the moving plate, and the output shaft of the first driving device is connected to the rotating gear. A functional block is arranged at the lower end of the auxiliary gear, and the functional block is located on the lower side of the rotating gear. A telescopic device is arranged at the rear end of the functional block, and a functional cylinder is installed at the rear end of the movable part of the telescopic device. A fourth telescopic rod is arranged between the functional cylinder and the functional block, and the fourth telescopic rod is located on the outside of the telescopic device.

[0010] Furthermore, a rotating shaft is rotatably connected at the middle position of the top of the functional tube, and the rotating shaft is arranged vertically. A second driving device is installed at the upper end of the functional tube, and the output shaft of the second driving device is connected to the rotating shaft. A lower plate is arranged at the outer end of the rotating shaft, and the other end of the lower plate is slidably connected to the inner wall of the functional tube, and the lower end surface of the lower plate coincides with the lower end surface of the functional tube.

[0011] A folding plate is arranged on the upper end of the lower plate, and the folding plate is fitted on the outer end of the rotating shaft. The folding plate is slidably connected to the inner wall of the functional tube. An upper plate is installed on the upper end of the folding plate, and the upper plate is arranged on the inner wall of the functional tube, and the upper plate is fitted with the outer end of the rotating shaft.

[0012] Furthermore, the functional part includes an extraction device, the extraction device is installed on the upper end of the annular plate, and the outlet of the extraction device is connected to the front end of the water tank, and the inlet of the extraction device is connected to the installation connection pipe;

[0013] The other end of the connecting pipe is connected to the movable column, and the connection position between the movable column and the connecting pipe is located between the mounting plate and the straight cylinder. The upper end of the hose extends into the movable column and is connected to the connecting pipe. The front end of the lower part of the water tank is connected to a water inlet pipe, and a control valve is installed on the water inlet pipe. The other end of the water inlet pipe is connected to the connecting pipe.

[0014] Further, the lifting member includes a plurality of cylinders, the plurality of cylinders are equidistantly arranged on the lower end of the annular plate, and the cylinders are arranged vertically, the lower ends of the plurality of cylinders are all threadedly connected to the movable cylinder, and the cylinders extend into the movable cylinder, the lower ends of the plurality of cylinders are all installed with moving components, and the moving components are located in the movable cylinder, and the movable cylinder is located outside the movable plate;

[0015] The lower end of the annular plate is slidably connected to the large annular gear, and the lower end of the annular plate is slidably connected to multiple small annular gears at equal intervals, and the multiple small annular gears are respectively located on the outsides of multiple cylinders, and the multiple small annular gears are equidistantly meshed on the inner wall of the large annular gear, and the multiple small annular gears are respectively located directly above multiple movable cylinders, and multiple first telescopic rods are equidistantly installed between the small annular gears and the movable cylinders, and the first telescopic rods are located on the outsides of the cylinders.

[0016] Furthermore, a third telescopic rod is installed between the mounting plate and the water tank, and the third telescopic rod is located on the right side of the first elastic member, a plurality of T-shaped guide rods are equidistantly installed on the upper end of the straight cylinder, and the plurality of the first elastic members are respectively located on the outside of the rod portions of the plurality of T-shaped guide rods, the rod portions of the plurality of T-shaped guide rods all pass through the mounting plate, and the mounting plate is slidably connected to the T-shaped guide rods.

[0017] Furthermore, the lower end surface of the base plate is recessed upward to form a functional groove, and the functional groove is located at the outer end of the straight tube, the upper end of the water bag extends into the functional groove, the water bag is connected at the lower end of the straight tube, and the lower end of the straight tube extends into the water bag, the top end of the functional groove is symmetrically slidably connected to two arc-shaped clamping plates, and the two arc-shaped clamping plates are arranged relatively to each other, the two arc-shaped clamping plates are fitted to the outer end of the water bag, the two arc-shaped clamping plates are rotated toward the outer end to connect with screws, and the other ends of the two screws extend out of the outside of the base plate, and the screws are threadedly connected to the base plate.

[0018] Beneficial effects of the present invention:

[0019] 1. Through the first electric push rod, the mounting plate, multiple first elastic members, the straight cylinder, the base plate, the movable column and the mounting cylinder, the water bag is placed and moved in a directional manner, and the base plate is contacted with the stone-filled roadbed surface. Then, the water inlet pipe, the water tank, the connecting pipe and the hose are used to transport water into the water bag, and the piston is moved along the straight cylinder to exert pressure on the water in the water bag, effectively reducing the probability of folding in the water bag, effectively ensuring that the water bag is closely fitted to the inner wall of the test hole, effectively ensuring the measurement effect and accuracy, and using the overflow pipe and the test tube to collect the overflowed water, so as to transport a suitable amount of water into the water bag, effectively reducing the probability of too much or too little water being transported into the water bag, and effectively ensuring the measurement effect and accuracy.

[0020] 2. The water bag is clamped on the outer end of the straight tube through two screws and two arc-shaped clamping plates, which makes it easy to disassemble and assemble the water bag, effectively reducing the probability of water leakage caused by damage to the water bag, effectively ensuring the measurement effect and prolonging the service life.

[0021] 3. Use the universal wheel to move the water tank and other components to the local position to be detected in the stone-filled roadbed, and then use the large ring gear, multiple small ring gears and multiple first telescopic rods to move the movable cylinder down and contact the surface of the stone-filled roadbed, and make the universal wheel enter the movable cylinder to achieve stable placement of the water tank and other components, effectively reduce the probability of shaking of the water tank and other components during work, and effectively ensure the measurement effect.

[0022] 4. The water in the water bag is returned to the water tank through the water pump, hose and connecting pipe, so as to recycle and reuse the water in the water bag, effectively reduce the waste of water in the water tank, save water and facilitate the next measurement operation.

[0023] 5. The function block, the second electric push rod, the fourth telescopic rod and the function tube are rotated to the appropriate position through the first motor, the rotating gear and the auxiliary gear, and the function tube is moved to the right below the air bag by the second electric push rod, and then the function tube is moved downward and inserted into the stone-filled roadbed to the appropriate depth by the third electric push rod, so as to realize the mechanized hole digging operation and integrate the hole digging structure with the water bag structure, effectively reducing the probability of defects such as staggered between the excavated test hole and the water bag, and effectively reducing the probability of defects such as offset between the inserted water bag and the test hole, effectively ensuring the measurement effect and accuracy.

[0024] 6. Utilize the first motor and the rotating shaft to rotate the lower plate and perform cutting operations, so that the folding plate is unfolded and the opening of the functional cylinder is blocked, so that the soil generated by the excavation test hole is stored in the functional cylinder, thereby realizing effective collection of the soil generated by the excavation test hole, effectively reducing the probability of the excavated soil falling randomly and being unable to be collected during excavation, and effectively ensuring the measurement effect and accuracy.

[0025] 7. Use the second electric push rod to make the annular brush move along the ground during the movement of the functional cylinder, so as to realize multiple cleaning operations on the stone-filled roadbed surface, effectively reduce the probability of defects such as gaps between the base plate and the stone-filled roadbed surface due to impurities such as pebbles remaining on the stone-filled roadbed surface, effectively reduce the probability of defects such as excessive expansion and damage of the water bag during the process of water delivery into the water bag, and effectively ensure the measurement effect and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0027] Figure 1 It is a structural schematic diagram of a porosity measuring device for a stone-filled roadbed according to the present invention;

[0028] Figure 2 A cross-sectional view of a device for measuring porosity of a stone-filled roadbed according to the present invention;

[0029] Figure 3 for Figure 2 Enlarged view of part A in the middle;

[0030] Figure 4 It is an assembly diagram of a straight cylinder and a base plate in a porosity measuring device for a rock-filled roadbed according to the present invention;

[0031] Figure 5 It is an assembly diagram of a large ring gear, a cylinder, a movable cylinder and a small ring gear in a device for measuring porosity of a rock-filled roadbed according to the present invention;

[0032] Figure 6 A three-dimensional diagram of a functional cylinder in a porosity measurement device for a rock-filled roadbed according to the present invention;

[0033] Figure 7 It is a cross-sectional view of a functional cylinder in a porosity measuring device for a rock-filled roadbed according to the present invention;

[0034] Figure 8 It is a schematic diagram of another embodiment of a device for measuring porosity of a stone-filled roadbed according to the present invention;

[0035] Fig. 9 The present invention discloses an assembly diagram of a functional cylinder, an auxiliary plate, a mounting ring plate, an annular brush and a second elastic member in a porosity measuring device for a stone-filled roadbed.

[0036] In the figure: 1, water tank, 2, annular plate, 3, straight cylinder, 4, base plate, 5, water bag, 6, functional cylinder, 21, water pump, 22, large annular gear, 23, water inlet pipe, 24, connecting pipe, 25, cylinder, 26, first telescopic rod, 27, movable cylinder, 28, universal wheel, 29, small annular gear, 31, mounting cylinder, 32, first elastic member, 33, movable column, 34, piston, 35, mounting plate, 36, first electric push rod, 37, T-shaped guide rod, 41, screw, 42, arc splint, 43, functional slot, 61, functional block , 62, auxiliary gear, 63, first motor, 64, second electric push rod, 65, moving plate, 66, second motor, 67, third electric push rod, 68, second telescopic rod, 69, rotating gear, 341, test tube, 342, overflow pipe, 343, hose, 351, third telescopic rod, 601, auxiliary plate, 602, mounting ring plate, 603, annular brush, 604, second elastic member, 605, T-shaped slide bar, 611, fourth telescopic rod, 631, rotating shaft, 632, lower plate, 633, folding plate, 634, upper plate. DETAILED DESCRIPTION

[0037] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0038] Embodiment 1: Figure 1-Figure 5 As shown, a porosity measuring device for a stone-filled roadbed is provided, comprising a water tank 1, an annular plate 2 whose lower end surface overlaps with the lower end surface of the water tank 1 is arranged on the outer end of the water tank 1, a mounting carrier is provided for components such as a cylinder 25 through the annular plate 2, and a plurality of vertically arranged cylinders 25 are equidistantly arranged on the lower end of the annular plate 2, a mounting carrier is provided for a moving member through the cylinder 25, and then a plurality of moving members located in a movable cylinder 27 are respectively mounted on the lower ends of a plurality of cylinders 25, and a plurality of moving members are used in coordination to realize a moving operation, and a universal wheel 28 can be used for the moving member, and a plurality of movable cylinders 27 located outside a movable plate 65 are respectively threadedly connected to the lower ends of a plurality of cylinders 25, and a plurality of cylinders 25 are respectively extended into a plurality of movable cylinders 27, and the cylinders 25 are lifted by the movable cylinders 27;

[0039] The large ring gear 22 is slidably connected to the lower end of the ring plate 2, and multiple small ring gears 29 are rotated synchronously through the large ring gear 22, and multiple small ring gears 29 located on the outside of multiple cylinders 25 and equidistantly meshed with the inner wall of the large ring gear 22 and located directly above the movable cylinder 27 are equidistantly slidably connected to the lower end of the ring plate 2, and the corresponding first telescopic rods 26 are moved through the small ring gears 29, and then multiple first telescopic rods 26 located on the outside of the cylinder 25 are equidistantly installed between the small ring gear 29 and the movable cylinder 27, and multiple first telescopic rods 26 are used in conjunction to connect the small ring gear 29 with the movable cylinder 27;

[0040] The mounting tube 31 is arranged at the middle position of the lower end of the water tank 1, and a mounting carrier is provided for the movable column 33 through the mounting tube 31, and the movable column 33 extending into the mounting tube 31 is slidably connected to the lower end of the mounting tube 31, and a mounting carrier is provided for the mounting plate 35 through the movable column 33, and then the mounting plate 35 located at the lower side of the mounting tube 31 is arranged on the outer end of the movable column 33, and the movable column 33 is moved up and down through the mounting plate 35, and a plurality of first elastic members 32 located at the outer side of the rod parts of a plurality of T-shaped guide rods 37 and located at the outer side of the mounting tube 31 are equidistantly arranged between the mounting plate 35 and the transparent straight tube 3 located at the lower side of the mounting plate 35, and the plurality of first elastic members 32 are used in combination, and the mounting plate 35 is movably connected to the straight tube 3, and the first elastic member 32 can be a spring;

[0041] The first lifting device located on the left side of the first elastic member 32 is installed between the mounting plate 35 and the water tank 1. The mounting plate 35 is driven to move up and down by the first lifting device. The first lifting device can use a first electric push rod 36, and a third telescopic rod 351 located on the right side of the first elastic member 32 is installed between the mounting plate 35 and the water tank 1. The movement of the mounting plate 35 is guided by the third telescopic rod 351. Then, multiple T-shaped guide rods 37, which penetrate the mounting plate 35 and are slidably connected to the mounting plate 35, are equidistantly installed on the upper end of the straight tube 3. The multiple T-shaped guide rods 37 are used in combination to guide the up and down movement of the straight tube 3.

[0042] The piston 34 slidably connected in the straight cylinder 3 is arranged on the lower outer end of the movable column 33. The straight cylinder 3 and the piston 34 are used in conjunction with each other to apply downward pressure, and the base plate 4 whose lower end surface coincides with the lower end surface of the straight cylinder 3 is installed on the lower outer end of the straight cylinder 3. The base plate 4 is used to limit the placement of the water bag 5. The lower end surface of the base plate 4 is recessed upward to form a functional groove 43 located at the outer end of the straight cylinder 3. The functional groove 43 provides an installation space for the arc clamping plate 42, and then the water bag 5 extending from the upper end into the functional groove 43 is connected and arranged at the lower end of the straight cylinder 3, and the lower end of the straight cylinder 3 extends into the water bag 5, and is used to store water through the water bag 5;

[0043] Two arc-shaped clamping plates 42 arranged opposite to each other and fitted to the outer ends of the water bag 5 are symmetrically slidably connected to the top of the inner part of the functional groove 43. The two arc-shaped clamping plates 42 are used together to make the straight tube 3 and the water bag 5 detachably connected, and the two screws 41 whose other ends extend out of the outside of the base plate 4 and are threadedly connected to the base plate 4 are respectively rotatably connected to the outer ends of the two arc-shaped clamping plates 42, and the arc-shaped clamping plates 42 are moved by the screws 41, and then the overflow pipe 342 extending to the lower end of the piston 34 and equipped with a first one-way valve is installed on the upper end of the piston 34, and the test tube 341 is connected to the straight tube 3 through the overflow pipe 342, and the test tube 341 located on the lower side of the mounting plate 35 is threadedly connected to the upper end of the overflow pipe 342, and the water overflowing from the water bag 5 is collected through the test tube 341;

[0044] An extraction device whose outlet is connected to the front end of the water tank 1 is installed on the upper end of the annular plate 2, and the water in the water bag 5 is transported to the water tank 1 through the extraction device. The extraction device can adopt a water pump 21, and the other end is connected to the movable column 33 and the connecting pipe 24 connected to the movable column 33 is installed on the inlet of the extraction device. The extraction device is connected to the hose 343 through the connecting pipe 24, and then the hose 343, whose lower end extends into the water bag 5 and is equipped with a second one-way valve and whose upper end extends into the movable column 33 and is connected to the connecting pipe 24, is set at the middle position of the lower end of the movable column 33. The water bag 5 is connected to the connecting pipe 24 through the hose 343, and the water inlet pipe 23, which is equipped with a control valve and the other end is connected to the connecting pipe 24, is connected to the front end of the lower part of the water tank 1, and the water tank 1 is connected to the connecting pipe 24 through the water inlet pipe 23.

[0045] When in use, first extend the upper end of the water bag 5 into the functional groove 43, and put the water bag 5 on the lower end of the straight tube 3, and then rotate the two screws 41. Since the screws 41 are threadedly connected to the base plate 4, the screws 41 rotate and move inward at the same time, so that the arc clamping plate 42 moves inward and contacts the outer end of the water bag 5, so that the water bag 5 is clamped on the outer end of the straight tube 3, realizing convenient disassembly and assembly of the water bag 5, effectively reducing the probability of water leakage caused by damage to the water bag 5, effectively ensuring the measurement effect, and improving the service life;

[0046] First, the large ring gear 22 is rotated. Since the large ring gear 22 meshes with the plurality of small ring gears 29, the rotation of the large ring gear 22 causes the plurality of small ring gears 29 to rotate synchronously, and with the assistance of the plurality of first telescopic rods 26, the plurality of movable cylinders 27 are rotated synchronously. Since the movable cylinder 27 is threadedly connected to the cylinder 25, the rotation of the movable cylinder 27 causes the movable cylinder 27 to move upward along the cylinder 25, so that the plurality of universal wheels 28 all move downward and contact the ground, and the movable cylinder 27 is separated from the ground, and then the universal wheels 28 are used to move the water tank 1 and other components to the local position to be detected in the stone-filled roadbed;

[0047] Then, the large ring gear 22 is rotated in the opposite direction, and the plurality of small ring gears 29, the plurality of first telescopic rods 26 and the plurality of movable cylinders 27 are synchronously rotated in the opposite direction, so that the movable cylinder 27 is moved downward and contacts the stone-filled roadbed surface, and the universal wheel 28 enters the movable cylinder 27, so that the water tank 1 and other components are stably placed, and the probability of shaking of the water tank 1 and other components during operation is effectively reduced, and the measurement effect is effectively ensured;

[0048] Then, a test hole is dug at the local position to be tested in the stone-filled roadbed, which is located directly below the water bag 5. Then, the first electric push rod 36 is started to drive the mounting plate 35 to move downward, thereby causing the plurality of first elastic members 32, the straight cylinder 3, the base plate 4 and the water bag 5 to move downward, and the movable column 33 is moved downward along the mounting cylinder 31, so that the water bag 5 is inserted into the test hole in a directional manner, and the base plate 4 contacts the surface of the stone-filled roadbed. Then, the initial capacity of the water in the water tank 1 is recorded, and then the control valve on the water inlet pipe 23 is opened, so that the water in the water tank 1 enters the water bag 5 along the water inlet pipe 23, the connecting pipe 24 and the hose 343, so that the water bag 5 expands and fits the inner wall of the test hole;

[0049] When the water bag 5 expands and fits the inner wall of the test hole, water will enter the straight cylinder 3. When the water in the straight cylinder 3 contacts the lower end of the piston 34, the control valve on the water inlet pipe 23 is closed, and the discharge capacity of the water in the water tank 1 is recorded. Then, the first electric push rod 36 is used to move the mounting plate 35 further downward, thereby compressing the plurality of first elastic members 32, so that the first elastic members 32 generate elastic force, and the movable column 33 continues to move downward, so that the piston 34 moves downward along the straight cylinder 3 and moves to the lower limit position in the straight cylinder 3, thereby squeezing the water in the straight cylinder 3, exerting pressure on the water in the water bag 5, effectively reducing the probability of folding in the water bag 5, effectively ensuring that the water bag 5 is closely fitted to the inner wall of the test hole, and effectively ensuring the measurement effect and accuracy;

[0050] At the same time, the excess water in the water bag 5 will flow into the test tube 341 along the overflow pipe 342, and the test tube 341 collects the overflowed water, and then records the collection capacity of the water in the test tube 341, and then calculates the water capacity in the water bag 5 through the initial capacity, the discharge capacity and the collection capacity, and uses the water capacity and the soil volume of the excavated test hole for analysis and calculation, thereby completing the measurement of the porosity of the stone-filled roadbed, achieving the delivery of an appropriate amount of water to the water bag 5, effectively reducing the probability of too much or too little water being delivered to the water bag 5, and effectively ensuring the measurement effect and accuracy;

[0051] When the measurement work is completed, the water pump 21 is started first, so that the water in the water bag 5 returns to the water tank 1 along the hose 343 and the connecting pipe 24, so as to recycle and reuse the water in the water bag 5, effectively reduce the waste of water in the water tank 1, save water, and facilitate the next measurement operation.

[0052] Embodiment 2: A first electric push rod 36, a mounting plate 35, a plurality of first elastic members 32, a straight tube 3, a base plate 4, a movable column 33 and a mounting tube 31 are used to direct the water bag 5 downward into the test hole. However, the test hole is generally excavated additionally. When the water tank 1 and other components are moved to the position of the test hole, alternation between the water bag 5 and the test hole is prone to occur. As a result, when the water bag 5 enters the test hole, there is a high probability of defects such as an offset between the water bag 5 and the test hole. As a result, the edge position of the test hole will hinder and squeeze the water bag 5, so that the water bag 5 cannot effectively expand when water enters, which will affect the measurement effect and accuracy.

[0053] In order to solve the above problems, Figure 1 , Figure 6 and Figure 7 As shown, the lower end of the movable part of the second lifting device whose fixed part is installed on the lower end of the rear part of the annular plate 2 is connected to the moving plate 65 located on the rear side of the base plate 4, and the moving plate 65 is driven to move up and down through the second lifting device. The second lifting device can use a third electric push rod 67, and the second telescopic rod 68 whose other end is set on the lower side of the water tank 1 is installed on the upper end of the moving plate 65. The movement of the moving plate 65 is guided by the second telescopic rod 68, and then the auxiliary gear 62 is rotatably connected to the middle position of the lower end of the moving plate 65, and the auxiliary gear 62 is used to provide a mounting carrier for the functional block 61;

[0054] The rotating gear 69 located at the lower side of the moving plate 65 is meshed with the outer end of the auxiliary gear 62, and the auxiliary gear 62 is rotated by rotating the gear 69, and the fixed part of the first driving device whose output shaft is connected to the rotating gear 69 is set on the upper end of the moving plate 65, and the rotating gear 69 is driven to rotate by the first driving device. The first driving device can use a second motor 66, and then the functional block 61 located at the lower side of the rotating gear 69 is set on the lower end of the auxiliary gear 62, and the functional block 61 is used to provide a mounting carrier for the telescopic device and other components;

[0055] The functional cylinder 6 is installed at the rear end of the movable part of the telescopic device whose fixed part is set at the rear end of the functional block 61. The functional cylinder 6 is driven to move forward and backward through the telescopic device. The telescopic device can use a second electric push rod 64, and a fourth telescopic rod 611 located outside the telescopic device is set between the functional cylinder 6 and the functional block 61. The movement of the functional cylinder 6 is guided by the fourth telescopic rod 611. Then, the vertically arranged rotating shaft 631 is rotatably connected to the middle position of the top inside the functional cylinder 6, and the lower plate 632 is rotated through the rotating shaft 631.

[0056] The output shaft of the second driving device with a fixed part installed on the upper end of the functional cylinder 6 is connected to the rotating shaft 631, and the rotating shaft 631 is driven to rotate through the second driving device. The second driving device can use the first motor 63, and the lower plate 632 whose other end is slidably connected to the inner wall of the functional cylinder 6 and whose lower end surface coincides with the lower end surface of the functional cylinder 6 is set on the outer end of the rotating shaft 631. The folding plate 633 is unfolded or stored through the lower plate 632, and then the folding plate 633 is attached to the outer end of the rotating shaft 631 and the folding plate 633 is slidably connected to the inner wall of the functional cylinder 6 is set on the upper end of the lower plate 632. The opening of the functional cylinder 6 is blocked by the folding plate 633, and the upper plate 634 set on the inner wall of the functional cylinder 6 and attached to the outer end of the rotating shaft 631 is installed on the upper end of the folding plate 633. The upper plate 634 is provided with a mounting carrier for the folding plate 633.

[0057] When in use, the universal wheel 28 is first used to move the water tank 1 and other components to the local position to be detected in the stone-filled roadbed, and then the large ring gear 22, multiple small ring gears 29, multiple first telescopic rods 26 and multiple movable cylinders 27 are used to move the movable cylinders 27 downward and contact the surface of the stone-filled roadbed, and the universal wheel 28 enters the movable cylinders 27, so that the water tank 1 and other components are stably placed;

[0058] Then the first motor 63 is started, and the rotating gear 69 is driven to rotate. Since the rotating gear 69 and the auxiliary gear 62 are meshed with each other, the rotation of the rotating gear 69 causes the auxiliary gear 62 to rotate, and then the functional block 61, the second electric push rod 64, the fourth telescopic rod 611 and the functional tube 6 are rotated to a suitable position, and then the second electric push rod 64 is started, and then the functional tube 6 is driven to move outward, so that the functional tube 6 moves to the bottom of the air bag;

[0059] Then, the third electric push rod 67 is started to move the moving plate 65 and other parts downward, so that the functional tube 6 moves downward and is inserted into the stone-filled roadbed to a suitable depth, thereby completing the excavation of the test hole, realizing the mechanized hole digging operation, and integrating the hole digging structure with the water bag 5 structure, effectively reducing the probability of defects such as staggering between the excavated test hole and the water bag 5, and effectively reducing the probability of defects such as offset between the inserted water bag 5 and the test hole, effectively ensuring the measurement effect and accuracy;

[0060] When the functional cylinder 6 is inserted into the stone-filled roadbed to a suitable depth, the first motor 63 is started to drive the rotating shaft 631 to rotate, thereby rotating the lower plate 632, thereby cutting the soil in the functional cylinder 6 and unfolding the folding plate 633. When the lower plate 632 rotates to the bottom of the upper plate 634, the folding plate 633 is fully unfolded, thereby blocking the opening of the functional cylinder 6, so that the soil generated by the excavation test hole is stored in the functional cylinder 6. Then, the third electric push rod 67 is used to move the moving plate 65, the functional cylinder 6 and other components upward to the limit position.

[0061] Then, the second electric push rod 64 is used to return the functional tube 6 and other components to their original positions, and then the second motor 66, the auxiliary gear 62 and the rotating gear 69 are used to rotate the functional tube 6 to the outer side of the annular plate 2. Then, the container is placed directly below the functional tube 6, and the first motor 63 and the rotating shaft 631 are used to rotate the lower plate 632 in the opposite direction, so that the folding plate 633 is stored, and then the opening of the functional tube 6 is exposed, so that the soil in the functional tube 6 enters the container, so as to effectively collect the soil generated by the excavation of the test hole, effectively reduce the probability that the soil generated by the excavation will fall randomly and cannot be collected during excavation, and effectively ensure the measurement effect and accuracy.

[0062] Embodiment three: A first electric push rod 36, a mounting plate 35, a plurality of first elastic members 32, a straight tube 3, a base plate 4, a movable column 33 and a mounting tube 31 are used to direct the water bag 5 downward into the test hole, and to make the base plate 4 contact the surface of the stone-filled roadbed, thereby completely confining the water bag 5 in the test hole. However, due to factors such as excavation, impurities such as pebbles may remain on the surface of the stone-filled roadbed, resulting in a high probability of defects such as gaps between the base plate 4 and the stone-filled roadbed due to impurities, resulting in a high probability of defects such as over-expansion and damage of the water bag 5 during the process of transferring water into the water bag 5.

[0063] In order to solve the above problems, Figure 8 and Fig. 9 As shown, the auxiliary plate 601 located at the lower side of the functional block 61 is installed on the outer end of the functional tube 6, and the auxiliary plate 601 is used to provide a mounting carrier for the second elastic member 604, and multiple second elastic members 604 respectively located on the outer side of the rods of multiple T-shaped slide bars 605 are equidistantly arranged between the lower end of the auxiliary plate 601 and the upper end of the mounting ring plate 602 located at the lower side of the auxiliary plate 601 and on the outer side of the functional tube 6. The multiple second elastic members 604 are used in conjunction to return the mounting ring plate 602 to its original position, and the second elastic member 604 can be a spring;

[0064] A plurality of T-shaped slide bars 605 having rod portions penetrating the auxiliary plate 601 and being slidably connected to the auxiliary plate 601 are equidistantly installed on the upper end of the mounting ring plate 602. The plurality of T-shaped slide bars 605 are used in conjunction with each other to guide the movement of the mounting ring plate 602. An annular brush 603 extending from the lower side of the functional tube 6 is arranged on the lower end of the mounting ring plate 602. The stone-filled roadbed surface is cleaned by the annular brush 603.

[0065] When in use, the first motor 63, the rotating gear 69 and the auxiliary gear 62 are used to rotate the functional block 61, the second electric push rod 64, the fourth telescopic rod 611 and the functional tube 6 to a suitable position, and then the third electric push rod 67 is used to move the functional tube 6, the auxiliary plate 601, the mounting ring plate 602, the annular brush 603 and the second elastic member 604 downward, so that the annular brush 603 contacts the ground, and then the second electric push rod 64 is used to move the functional tube 6 outward to just below the air bag;

[0066] During the movement of the functional cylinder 6, the annular brush 603 moves along the ground to clean the surface of the stone-filled roadbed. Then, the third electric push rod 67 is used to move the functional cylinder 6 downward and insert it into the stone-filled roadbed to a suitable depth, thereby completing the excavation of the test hole. During the excavation process, the stone-filled roadbed will restrict the annular brush 603 and the mounting ring plate 602, compress the multiple second elastic members 604, and make the second elastic members 604 generate elastic force, and make the mounting ring plate 602 and the auxiliary plate 601 move relative to each other, effectively ensuring the normal excavation operation using the functional cylinder 6;

[0067] When the excavation is completed, the third electric push rod 67 moves the functional cylinder 6 up to a suitable position. At this time, under the elastic force of the plurality of second elastic members 604, the annular brush 603 is always in contact with the surface of the stone-filled roadbed. Then, the second electric push rod 64 is used to move the functional cylinder 6 inward, so that the annular brush 603 moves back to its original position along the ground, and the stone-filled roadbed surface is cleaned again.

[0068] The stone-filled roadbed surface is cleaned multiple times, which effectively reduces the probability of defects such as gaps between the base plate 4 and the stone-filled roadbed surface due to impurities such as pebbles remaining on the stone-filled roadbed surface, and effectively reduces the probability of defects such as excessive expansion and damage of the water bag 5 during the process of conveying water into the water bag 5, thereby effectively ensuring the measurement effect and accuracy.

[0069] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A device for measuring porosity of a rock-filled roadbed, characterized in that: The invention comprises a water tank (1), wherein an annular plate (2) is arranged at the outer end of the water tank (1), and the lower end surface of the annular plate (2) overlaps with the lower end surface of the water tank (1); a mounting tube (31) is arranged at the middle position of the lower end of the water tank (1); the lower end of the mounting tube (31) is slidably connected to a movable column (33), and the movable column (33) extends into the mounting tube (31); a mounting plate (35) is arranged at the outer end of the movable column (33), and the mounting plate (35) is located at the lower side of the mounting tube (31); a straight tube (3) is arranged at the lower side of the mounting plate (35), and the straight tube (3) is transparent, and the mounting plate (35) and the straight tube (3) are equidistant from each other. A plurality of first elastic members (32) are provided, and the first elastic members (32) are located outside the mounting cylinder (31); a first lifting device is installed between the mounting plate (35) and the water tank (1), and the first lifting device is located on the left side of the first elastic member (32); a piston (34) is provided at the lower outer end of the movable column (33), and the piston (34) is slidably connected in the straight cylinder (3); a base plate (4) is installed at the lower outer end of the straight cylinder (3), and the lower end surface of the base plate (4) overlaps with the lower end surface of the straight cylinder (3); the lower end of the base plate (4) is detachably connected to a water bag (5), and the water bag (5) is arranged in communication with the straight cylinder (3); An overflow pipe (342) is installed at the upper end of the piston (34), and the overflow pipe (342) extends to the lower end of the piston (34). A first non-return valve is installed on the overflow pipe (342). The upper end of the overflow pipe (342) is threadedly connected to a test tube (341), and the test tube (341) is located at the lower side of the mounting plate (35). A lifting member is provided at the lower edge of the annular plate (2). A functional member is installed at the upper front end of the annular plate (2), and one end of the functional member is connected to the front end of the water tank (1). The other end of the functional member is connected to the front end of the water tank (1). The end of the movable column (33) is connected to the movable column (33), and the connection position between the functional component and the movable column (33) is located between the straight tube (3) and the mounting plate (35); a hose (343) is provided at the middle position of the lower end of the movable column (33), and the upper end of the hose (343) extends into the movable column (33) and communicates with the functional component; a second one-way valve is installed on the hose (343), and the lower end of the hose (343) extends into the water bag (5); a pit digging component is installed at the lower end of the rear part of the annular plate (2), and the pit digging component is located at the rear side of the base plate (4); The digging member comprises a second lifting device, wherein a fixed portion of the second lifting device is mounted on the lower end of the rear portion of the annular plate (2), a movable plate (65) is arranged at the lower end of the movable portion of the second lifting device, and the movable plate (65) is located at the rear side of the base plate (4), a second telescopic rod (68) is mounted at the upper end of the movable plate (65), and the other end of the second telescopic rod (68) is arranged at the lower side of the water tank (1), and the middle position of the lower end of the movable plate (65) is rotatably connected to the auxiliary gear (62); The outer end of the auxiliary gear (62) is meshed with the rotating gear (69), and the rotating gear (69) is located at the lower side of the movable plate (65); a first driving device is arranged at the upper end of the movable plate (65), and the output shaft of the first driving device is connected to the rotating gear (69); a functional block (61) is arranged at the lower end of the auxiliary gear (62), and the functional block (61) is located at the lower side of the rotating gear (69); a telescopic device is arranged at the rear end of the functional block (61); a functional cylinder (6) is installed at the rear end of the movable part of the telescopic device; a fourth telescopic rod (611) is arranged between the functional cylinder (6) and the functional block (61), and the fourth telescopic rod (611) is located at the outer side of the telescopic device; The middle position of the top end of the functional cylinder (6) is rotatably connected to a rotating shaft (631), and the rotating shaft (631) is arranged vertically. A second driving device is installed at the upper end of the functional cylinder (6), and the output shaft of the second driving device is connected to the rotating shaft (631). A lower plate (632) is arranged at the outer end of the rotating shaft (631), and the other end of the lower plate (632) is slidably connected to the inner wall of the functional cylinder (6), and the lower end surface of the lower plate (632) overlaps with the lower end surface of the functional cylinder (6); A folding plate (633) is provided at the upper end of the lower plate (632), and the folding plate (633) is fitted on the outer end of the rotating shaft (631). The folding plate (633) is slidably connected to the inner wall of the functional tube (6). An upper plate (634) is installed at the upper end of the folding plate (633), and the upper plate (634) is provided on the inner wall of the functional tube (6), and the upper plate (634) and the outer end of the rotating shaft (631) are fitted to each other.

2. The porosity measuring device for stone-filled roadbed according to claim 1, characterized in that: The functional part comprises an extraction device, the extraction device is mounted on the upper end of the annular plate (2), and the outlet of the extraction device is connected to the front end of the water tank (1), and the inlet of the extraction device is connected to the connection pipe (24); The other end of the connecting pipe (24) is connected to the movable column (33), and the connecting position of the movable column (33) and the connecting pipe (24) is located between the mounting plate (35) and the straight cylinder (3). The upper end of the hose (343) extends into the movable column (33) and is connected to the connecting pipe (24). The front end of the lower part of the water tank (1) is connected to the water inlet pipe (23), and a control valve is installed on the water inlet pipe (23). The other end of the water inlet pipe (23) is connected to the connecting pipe (24).

3. The porosity measuring device for stone-filled roadbed according to claim 1, characterized in that: The lifting member comprises a plurality of cylinders (25), the plurality of cylinders (25) being equidistantly arranged on the lower end of the annular plate (2), and the cylinders (25) being arranged vertically, the lower ends of the plurality of cylinders (25) being threadedly connected to the movable cylinder (27), and the cylinders (25) extending into the movable cylinder (27), the lower ends of the plurality of cylinders (25) being installed with movable components, and the movable components being located in the movable cylinder (27), and the movable cylinder (27) being located outside the movable plate (65); The lower end of the annular plate (2) is slidably connected to a large annular gear (22), and the lower end of the annular plate (2) is equidistantly slidably connected to a plurality of small annular gears (29), and the plurality of small annular gears (29) are respectively located outside a plurality of cylinders (25), and the plurality of small annular gears (29) are equidistantly meshed on the inner wall of the large annular gear (22), and the plurality of small annular gears (29) are respectively located directly above a plurality of movable cylinders (27), and a plurality of first telescopic rods (26) are equidistantly installed between the small annular gears (29) and the movable cylinders (27), and the first telescopic rods (26) are located outside the cylinders (25).

4. The porosity measuring device for stone-filled roadbed according to claim 1, characterized in that: A third telescopic rod (351) is installed between the mounting plate (35) and the water tank (1), and the third telescopic rod (351) is located on the right side of the first elastic member (32). A plurality of T-shaped guide rods (37) are equidistantly installed on the upper end of the straight cylinder (3). The plurality of first elastic members (32) are respectively located outside the rod portions of the plurality of T-shaped guide rods (37). The rod portions of the plurality of T-shaped guide rods (37) all penetrate the mounting plate (35), and the mounting plate (35) is slidably connected to the T-shaped guide rods (37).

5. The porosity measuring device for stone-filled roadbed according to claim 1, characterized in that: The lower end surface of the base plate (4) is recessed upward to form a functional groove (43), and the functional groove (43) is located at the outer end of the straight tube (3). The upper end of the water bag (5) extends into the functional groove (43). The water bag (5) is arranged in communication with the lower end of the straight tube (3), and the lower end of the straight tube (3) extends into the water bag (5). The top end of the functional groove (43) is symmetrically slidably connected to two arc-shaped clamping plates (42), and the two arc-shaped clamping plates (42) are arranged opposite to each other. The two arc-shaped clamping plates (42) are fitted to each other, and the two arc-shaped clamping plates (42) are both fitted to the outer end of the water bag (5). The two arc-shaped clamping plates (42) are rotated toward the outer end to connect the screw rods (41), and the other ends of the two screw rods (41) extend out of the outside of the base plate (4), and the screw rods (41) are threadedly connected to the base plate (4).

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