On-site compactness detection equipment for foundation backfill soil

Abstract

The compactness on-site detection equipment comprises a bottom plate, stand columns, a probe, a lifting block, a lifting structure, a bearing plate and a clamping structure, the upper surface of the bottom plate is fixedly connected with two sets of stand columns, the probe is arranged between the two sets of stand columns, sliding grooves are formed in the opposite sides of the two sets of stand columns, and the clamping structure is arranged between the two sets of stand columns. The interiors of the sliding grooves in the opposite sides of the two stand columns are each provided with a lifting structure, the opposite sides of the two stand columns are each provided with a bearing plate, and the upper surface of each bearing plate is provided with a clamping structure. Through the arrangement of the bottom plate, the handrail and the walking wheels, when other detection points need to be detected, an operator pulls out a probe from the interior of a through hole in the upper surface of the bottom plate, places the probe and a dynamic sounding hammer on the upper surface of the bottom plate, holds the handrail and pushes the bottom plate, and the bottom plate can move through the walking wheels at the lower ends of supporting columns on the lower surface; the probe rod can be conveniently moved to other detection points for detection, and the portability of the probe rod and the dynamic sounding hammer is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of density detection equipment, in particular to a density on-site detection equipment for foundation backfill soil. Background Art

[0002] The density test of backfill soil is a method to determine the density of soil during filling or compaction. The on-site density test of backfill soil is usually carried out by in-situ density test method. The in-situ density test methods include dynamic probing method and nuclear density meter: the dynamic probing method is to use a power hammer to insert the probe into the soil, and the density of the soil is evaluated based on the insertion resistance. The nuclear density meter uses a nuclear density meter to measure near the surface of the fill layer and determine the density of the soil through radioactive measurement.

[0003] When using the dynamic sounding method, a dynamic sounding hammer and a probe rod are used to select several representative locations on the ground or on the fill surface for testing. The probe rod is inserted into the soil. After each insertion to a certain depth, the probe rod is struck with a hammer of a fixed weight. The insertion depth and the number of hammers struck are then recorded. The soil density is evaluated based on the number of hammers struck and the depth, combined with test data or empirical tables.

[0004] However, the probe rod and the dynamic feeler hammer need to be carried by the inspection personnel, and two people are needed to operate them when in use. One person is needed to support the probe rod, and the other person is needed to continuously raise the height of the dynamic feeler hammer and release the dynamic feeler hammer to hammer the probe rod. Lifting the dynamic feeler hammer for a long time will cause the user to consume a lot of physical strength, which will slow down the speed of lifting the dynamic feeler hammer and reduce work efficiency. In order to ensure the accuracy of the inspection, the user is also required to carry the probe rod and the dynamic feeler hammer to move. The probe rod and the dynamic feeler hammer both have a certain weight, which is inconvenient for the user to carry during the movement of the user. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a field density detection device for foundation backfill soil.

[0006] The utility model provides a density on-site detection equipment for foundation backfill soil, which includes: a base plate, a column, a probe, a lifting block, a lifting structure, a bearing plate and a clamping structure, wherein the upper surface of the base plate is fixedly connected with two groups of columns, a probe is arranged between the two groups of columns, a slide groove is provided on opposite sides of the two groups of columns, and a group of lifting structures are respectively arranged inside the slide groove on the opposite side of the two groups of columns. The lifting blocks in the two groups of lifting structures are respectively slidably connected to the inside of the slide groove on the opposite side of the two groups of columns, a threaded hole is provided at the upper end of the lifting block, a screw rod is threadedly connected inside the threaded hole on the upper end of the lifting block, and a first servo motor is arranged at the lower end of the screw rod, a group of bearing plates are respectively arranged on the opposite side of the two groups of columns, and a group of clamping structures are respectively arranged on the upper surface of each group of bearing plates, the clamping structure includes a gear, a rack, a connecting rod and a clamping plate, a group of racks are respectively meshed on both sides of the gear, a group of connecting rods are respectively fixedly connected to the outer surface of the rack, the two groups of connecting rods are arranged in parallel, and a group of clamping plates are respectively fixedly connected to the opposite side of the two groups of connecting rods.

[0007] Preferably, the base plate is located between the two groups of columns and has a through hole on its upper surface, one end of the base plate is fixedly connected to an equipment box on its upper surface, the other end of the base plate is fixedly connected to a handrail on its upper surface, and four groups of support columns are fixedly connected to its lower surface, each group of support columns is equipped with a group of walking wheels at the lower end.

[0008] Preferably, a partition is provided inside the column, an outer surface of the partition is fixedly connected to an inner wall of a slide groove on one side of the column, and a through hole is provided on an upper surface of the partition.

[0009] Preferably, the upper end of the screw rod is rotatably connected to the top of the slide groove on one side of the column, the lower end of the screw rod passes through the through hole on the upper surface of the partition and is fixedly connected to the power output end of the first servo motor, and one side of the first servo motor is fixedly connected to the inner wall of the slide groove on one side of the column.

[0010] Preferably, the lower end of the probe extends through the through hole on the upper surface of the base plate to the lower surface of the base plate, an impact plate is fixedly connected to the outer surface of the probe, the upper end of the probe is sleeved with a dynamic feeler hammer, a through hole is opened on the upper surface of the dynamic feeler hammer, the upper end of the probe is arranged inside the through hole on the upper surface of the dynamic feeler hammer, and a group of connecting rods are fixedly connected on both sides of the dynamic feeler hammer, and the two groups of connecting rods are respectively located between the two groups of clamping plates in the two groups of clamping structures.

[0011] Preferably, one end of the carrying plate is fixedly connected to one side of the lifting block, and the lifting block is fixedly connected to two groups of connecting ear plates on the side surface close to the carrying plate, through holes are opened on the side surfaces of the two groups of connecting ear plates, and a sliding groove is opened on the upper surface of the carrying plate, two groups of racks are slidably connected to the bottom of the sliding groove on the upper surface of the carrying plate, a rotating rod is fixedly connected to the middle part of the gear, and the lower end of the rotating rod is rotatably connected to the bottom of the sliding groove on the upper surface of the carrying plate, and the upper end of the rotating rod is fixedly connected to a worm wheel, and a worm is meshed with one side of the worm wheel, and two ends of the worm are rotatably connected to the inside of the through holes on the side surfaces of the two groups of connecting ear plates, and a second servo motor is arranged at one end of the worm, and one side of the second servo motor is fixedly connected to the side of the lifting block close to the carrying plate.

[0012] Compared with the related art, the on-site density detection equipment for foundation backfill provided by the utility model has the following beneficial effects:

[0013] By providing a column, a lifting structure and a clamping structure, the lower end of the probe is in contact with the ground, and the power output end of the second servo motor rotates to drive the worm to rotate. The worm rotates and the worm wheel rotates. The rotation of the worm wheel drives the rotating rod to rotate. The rotation of the rotating rod drives the gear to rotate. When the gear rotates, the two sets of racks are meshed and slide inside the sliding groove on the upper surface of the bearing plate, driving the connecting rod to move, so that the two sets of clamping plates are close to each other, and then the two sets of connecting rods of the power sounding hammer are clamped. The first servo motor is started, and the power output end of the first servo motor rotates to drive the screw rod to rotate inside the through hole on the upper surface of the partition. The screw rod is threadedly connected to the threaded hole on the upper end of the lifting block, so that the lifting block rises. When the lifting block rises, it drives the load-bearing plate to rise, and then drives the clamping structure to clamp the dynamic sounding hammer to rise. When the dynamic sounding hammer rises to the set height, the two sets of clamping plates move away from each other, and the dynamic sounding hammer can fall and hit the impact plate. Under the impact, the impact plate drives the probe into the foundation backfill soil. Repeat the above operating steps to make the dynamic sounding hammer reciprocate against the impact plate. According to the number and depth of the hammers struck, combined with test data or experience tables, the density of the soil can be tested on site, which effectively improves work efficiency.

[0014] By providing a base plate, handrails and running wheels, the running wheels enhance the mobility of the base plate. When other inspection points need to be inspected, the operator pulls out the probe from the through hole on the upper surface of the base plate, places the probe and the dynamic sounding hammer on the upper surface of the base plate, holds the handrail and pushes the base plate, and the base plate can be moved by the running wheels at the lower end of the lower surface support column, which is convenient for moving to other inspection points for inspection, effectively improving the portability of the probe rod and the dynamic sounding hammer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic structural diagram of a preferred embodiment of a field density detection device for foundation backfill provided by the utility model;

[0016] Figure 2It is a schematic diagram of the exploded structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the exploded structure of the utility model from another perspective;

[0018] Figure 4 It is a schematic diagram of the exploded structure of the load-bearing plate, lifting block and clamping structure of the utility model;

[0019] Figure 5 For the utility model Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0020] Numbers in the figure: 1. Base plate; 2. Column; 3. Probe; 4. Lifting structure; 5. Clamping structure; 6. Lifting block; 7. Screw; 8. First servo motor; 9. Load-bearing plate; 10. Rotating rod; 11. Gear; 12. Rack; 13. Connecting rod; 14. Clamping plate; 15. Equipment box; 16. Handrail; 17. Support column; 18. Travel wheel; 19. Partition; 20. Impact plate; 21. Power feeler hammer; 22. Connecting rod; 23. Connecting ear plate; 24. Second servo motor; 25. Worm wheel; 26. Worm. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0022] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 ,in, Figure 1 A schematic structural diagram of a preferred embodiment of a field density detection device for foundation backfill provided by the utility model; Figure 2 It is a schematic diagram of the exploded structure of the utility model; Figure 3 It is a schematic diagram of the exploded structure of the utility model from another perspective; Figure 4 It is a schematic diagram of the exploded structure of the load-bearing plate, lifting block and clamping structure of the utility model;

[0023] Figure 5 For the utility model Figure 3The enlarged structural diagram at A in the middle. It includes: a base plate 1, columns 2, probes 3, lifting blocks 6, lifting structures 4, bearing plates 9 and clamping structures 5. Two groups of columns 2 are fixedly connected to the upper surface of the base plate 1. A probe 3 is arranged between the two groups of columns 2. Slide grooves are provided on the opposite sides of the two groups of columns 2. A group of lifting structures 4 is respectively arranged inside the slide grooves on the opposite sides of the two groups of columns 2. The lifting structures 4 include lifting blocks 6, screw rods 7 and a first servo motor 8. The lifting blocks 6 in the two groups of lifting structures 4 are respectively slidably connected to the inside of the slide grooves on the opposite sides of the two groups of columns 2. A threaded hole is provided on the upper end of the lifting block 6. The threaded hole on the upper end of the lifting block 6 is threadedly connected to the threaded hole. Rod 7, a first servo motor 8 is arranged at the lower end of the screw rod 7, a group of bearing plates 9 are respectively arranged on the opposite sides of the two groups of columns 2, the lifting structure 4 is convenient for driving the bearing plates 9 to rise and fall, and a group of clamping structures 5 are respectively arranged on the upper surface of each group of bearing plates 9, the clamping structure 5 is convenient for clamping and releasing, and the clamping structure 5 includes a gear 11, a rack 12, a connecting rod 13 and a clamping plate 14, a group of racks 12 are respectively meshed on both sides of the gear 11, and a group of connecting rods 13 are respectively fixedly connected to the outer surface of the rack 12, the two groups of connecting rods 13 are arranged in parallel, and a group of clamping plates 14 are respectively fixedly connected to the opposite sides of the two groups of connecting rods 13.

[0024] In the specific implementation process, Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a through hole is provided on the upper surface of a base plate 1 located between two groups of uprights 2, an equipment box 15 is fixedly connected to the upper surface of one end of the base plate 1, a power supply and a control switch are installed inside the equipment box 15, an armrest 16 is fixedly connected to the upper surface of the other end of the base plate 1, the armrest 16 is convenient for operators to hold, four groups of support columns 17 are fixedly connected to the lower surface of the base plate 1, and a group of walking wheels 18 are installed at the lower end of each group of support columns 17, and the walking wheels 18 enhance the mobility of the base plate 1.

[0025] Among them, a partition 19 is arranged inside the column 2, and the outer surface of the partition 19 is fixedly connected to the inner wall of the slide groove on one side of the column 2. A through hole is opened on the upper surface of the partition 19, and the partition 19 is convenient for installation.

[0026] Among them, the upper end of the screw rod 7 is rotatably connected to the top of the slide groove on one side of the column 2, and the lower end of the screw rod 7 passes through the through hole on the upper surface of the partition 19 and is fixedly connected to the power output end of the first servo motor 8. The screw rod 7 can rotate inside the through hole on the upper surface of the partition 19, and one side of the first servo motor 8 is fixedly connected to the inner wall of the slide groove on one side of the column 2. The first servo motor 8 is electrically connected to the internal power supply and control switch of the equipment box 15. When the first servo motor 8 is started, the rotation of the power output end can drive the screw rod 7 to rotate.

[0027] Among them, the lower end of the probe 3 extends through the through hole on the upper surface of the base plate 1 to the lower surface of the base plate 1, and the probe 3 can slide freely inside the through hole on the upper surface of the base plate 1. The outer surface of the probe 3 is fixedly connected with an impact plate 20, which is convenient for receiving impact force and transmitting the impact force to the probe 3, so that the probe 3 is inserted into the backfill soil. The upper end of the probe 3 is sleeved with a dynamic sounding hammer 21, and a through hole is opened on the upper surface of the dynamic sounding hammer 21. The upper end of the probe 3 is arranged inside the through hole on the upper surface of the dynamic sounding hammer 21. The dynamic sounding hammer 21 can slide freely on the outer surface of the upper end of the probe 3 through the through hole on the upper surface. A group of connecting rods 22 are fixedly connected on both sides of the dynamic sounding hammer 21, and the two groups of connecting rods 22 are respectively located between the two groups of clamping plates 14 in the two groups of clamping structures 5. The connecting rods 22 are convenient for being clamped by the clamping plates 14 and raise the height of the dynamic sounding hammer 21 when the clamping plates 14 rise.

[0028] Among them, one end of the carrying plate 9 is fixedly connected to one side of the lifting block 6, and the carrying plate 9 can be lifted and lowered with the lifting block 6. The lifting block 6 is fixedly connected to one side of the carrying plate 9 with two groups of connecting ear plates 23. The side surfaces of the two groups of connecting ear plates 23 are provided with through holes. The upper surface of the carrying plate 9 is provided with a slide groove. Two groups of racks 12 are slidably connected to the bottom of the slide groove on the upper surface of the carrying plate 9. The middle part of the gear 11 is fixedly connected with a rotating rod 10. The lower end of the rotating rod 10 is rotatably connected to the bottom of the slide groove on the upper surface of the carrying plate 9. When the rotating rod 10 rotates, it can drive the gear 11 to rotate. The upper end of the rotating rod 10 is fixedly connected to a worm gear 25. When the worm gear 25 rotates, it can drive the rotating rod 10 to rotate. A worm 26 is meshed on one side of 25. When the worm 26 rotates, it can drive the worm wheel 25 to rotate. At the same time, the worm 26 has a limiting effect on the worm wheel 25 to prevent the worm wheel 25 from rotating and resetting itself. Both ends of the worm 26 are rotatably connected to the inside of the through holes on the side surfaces of the two groups of connecting ear plates 23. The worm 26 can rotate inside the through holes on the side surfaces of the two groups of connecting ear plates 23. A second servo motor 24 is provided at one end of the worm 26. One side of the second servo motor 24 is fixedly connected to the side of the lifting block 6 close to the bearing plate 9. The second servo motor 24 is electrically connected to the internal power supply and control switch of the equipment box 15. When the second servo motor 24 is started, the power output end rotates to drive the worm 26 to rotate.

[0029] The working principle of the utility model is as follows: when the operator performs density detection on the foundation backfill soil, the probe 3 is placed inside the through hole on the upper surface of the bottom plate 1, so that the lower end of the probe 3 contacts the ground, and the power sounding hammer 21 is sleeved on the upper end of the probe 3. The operator simultaneously starts the second servo motors 24 in the two sets of clamping structures 5, and the power output end of the second servo motor 24 rotates to drive the worm 26 to rotate inside the through holes on the side surfaces of the two sets of connecting ear plates 23. The worm 26 meshes with the worm wheel 25 while rotating, so that the worm wheel 25 rotates, and the worm wheel 25 drives the rotating rod 10 when rotating. When the rotating rod 10 rotates, the gear 11 rotates. When the gear 11 rotates, the two sets of racks 12 are meshed, so that the two sets of racks 12 slide inside the slide groove on the upper surface of the carrier plate 9, driving the connecting rod 13 to move, so that the two sets of clamping plates 14 are close to each other, and then the two sets of connecting rods 22 of the power probing hammer 21 are clamped. At this time, the operator starts the first servo motor 8. The power output end of the first servo motor 8 rotates and drives the screw rod 7 to rotate inside the through hole on the upper surface of the partition 19. The screw rod 7 is threadedly connected to the threaded hole on the upper end of the lifting block 6, so that the lifting block 6 moves along one side of the column 2. When the slideway rises, the lifting block 6 drives the bearing plate 9 to rise, and then drives the clamping structure 5 to clamp the dynamic sounding hammer 21 to rise. When the dynamic sounding hammer 21 rises to the set height, the operator controls the power output end of the first servo motor 8 to reverse, so that the two groups of clamping plates 14 can move away from each other. The connecting rods 22 on both sides of the dynamic sounding hammer 21 lose the clamping of the clamping plates 14 and the dynamic sounding hammer 21 can fall and hit the impact piece 20. Under the impact, the impact piece 20 drives the probe 3 into the backfill soil of the foundation. The operator controls the power output end of the second servo motor 24 to reverse the lifting The lowering block 6 descends, driving the clamping plate 14 to descend to the connecting rod 22, and repeating the above operation steps allows the dynamic probing hammer 21 to reciprocate against the impact plate 20. According to the number and depth of the hammers struck, combined with the test data or experience table, the density of the soil is tested on site. When other test points need to be tested, the operator pulls out the probe 3 from the through hole on the upper surface of the base plate 1, places it on the upper surface of the base plate 1, holds the handrail 16 and pushes the base plate 1, and the base plate 1 can be moved by the walking wheels 18 at the lower end of the lower surface support column 17, so that it is convenient to move to other test points for testing.

[0030] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0031] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A field density detection device for foundation backfill soil, comprising: A base plate (1), a column (2), a probe (3), a lifting block (6), a lifting structure (4), a bearing plate (9) and a clamping structure (5), characterized in that two groups of columns (2) are fixedly connected to the upper surface of the base plate (1), a probe (3) is arranged between the two groups of columns (2), a slide groove is provided on the opposite side of the two groups of columns (2), a group of lifting structures (4) is respectively arranged inside the slide groove on the opposite side of the two groups of columns (2), the lifting structure (4) includes a lifting block (6), a screw rod (7) and a first servo motor (8), the lifting blocks (6) in the two groups of lifting structures (4) are respectively slidably connected to the inside of the slide groove on the opposite side of the two groups of columns (2), and a threaded part is provided on the upper end of the lifting block (6). A screw rod (7) is threadedly connected to the threaded hole at the upper end of the lifting block (6); a first servo motor (8) is arranged at the lower end of the screw rod (7); a group of bearing plates (9) are respectively arranged on the opposite side of the two groups of columns (2); a group of clamping structures (5) are respectively arranged on the upper surface of each group of bearing plates (9); the clamping structure (5) comprises a gear (11), a rack (12), a connecting rod (13) and a clamping plate (14); a group of racks (12) are respectively meshed on both sides of the gear (11); a group of connecting rods (13) are respectively fixedly connected to the outer surface of the racks (12); the two groups of connecting rods (13) are arranged in parallel; and a group of clamping plates (14) are respectively fixedly connected to the opposite side of the two groups of connecting rods (13).

2. The on-site density detection equipment for foundation backfill soil according to claim 1 is characterized in that: The bottom plate (1) is located between the two groups of columns (2) and has a through hole on its upper surface. An equipment box (15) is fixedly connected to the upper surface of one end of the bottom plate (1), and a handrail (16) is fixedly connected to the upper surface of the other end of the bottom plate (1). Four groups of support columns (17) are fixedly connected to the lower surface of the bottom plate (1), and a group of walking wheels (18) are installed at the lower end of each group of support columns (17).

3. The on-site density detection equipment for foundation backfill soil according to claim 1 is characterized in that: A partition plate (19) is arranged inside the column (2), the outer surface of the partition plate (19) is fixedly connected to the inner wall of the slide groove on one side of the column (2), and a through hole is opened on the upper surface of the partition plate (19).

4. The on-site density detection equipment for foundation backfill soil according to claim 1 is characterized in that: The upper end of the screw rod (7) is rotatably connected to the top of the slide groove on one side of the column (2), and the lower end of the screw rod (7) passes through the through hole on the upper surface of the partition (19) and is fixedly connected to the power output end of the first servo motor (8), and one side of the first servo motor (8) is fixedly connected to the inner wall of the slide groove on one side of the column (2).

5. The on-site density detection equipment for foundation backfill soil according to claim 1 is characterized in that: The lower end of the probe (3) passes through the through hole on the upper surface of the bottom plate (1) and extends to the lower surface of the bottom plate (1); the outer surface of the probe (3) is fixedly connected with an impact plate (20); the upper end of the probe (3) is sleeved with a dynamic feeler hammer (21); the upper surface of the dynamic feeler hammer (21) is provided with a through hole; the upper end of the probe (3) is arranged inside the through hole on the upper surface of the dynamic feeler hammer (21); a group of connecting rods (22) are fixedly connected to both sides of the dynamic feeler hammer (21); the two groups of connecting rods (22) are respectively located between the two groups of clamping plates (14) in the two groups of clamping structures (5).

6. The on-site density detection equipment for foundation backfill soil according to claim 1, characterized in that: One end of the carrying plate (9) is fixedly connected to one side of the lifting block (6); the lifting block (6) is fixedly connected to one side of the carrying plate (9) with two groups of connecting ear plates (23); through holes are provided on the side surfaces of the two groups of connecting ear plates (23); a sliding groove is provided on the upper surface of the carrying plate (9); two groups of racks (12) are slidably connected to the bottom of the sliding groove on the upper surface of the carrying plate (9); a rotating rod (10) is fixedly connected to the middle of the gear (11); the lower end of the rotating rod (10) is rotatably connected to the bottom of the sliding groove on the upper surface of the carrying plate (9); a worm wheel (25) is fixedly connected to the upper end of the rotating rod (10); a worm (26) is meshed on one side of the worm wheel (25); two ends of the worm (26) are rotatably connected to the inside of the through holes on the side surfaces of the two groups of connecting ear plates (23); a second servo motor (24) is provided at one end of the worm (26); one side of the second servo motor (24) is fixedly connected to the lifting block (6) near the carrying plate (9).

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