Cone dynamic penetration equipment with safety device

Abstract

The present invention discloses a cone dynamic probing device with a safety device in the field of engineering survey technology. It comprises a frame, a guide rod and a probe rod, the probe rod is fixedly connected to the bottom of the guide rod, a hammer pad is fixedly provided at the lower end of the guide rod, a drop hammer is sleeved on the guide rod, and a driving device is also included. The driving device can drive the drop hammer to move up and down relative to the guide rod, and a protective mechanism is also included. The protective mechanism includes a support frame and an openable and closable protective member. The support frame is connected to the frame and is used to support and connect the protective member; when the protective member is closed, it is distributed on the outer periphery of the guide rod, and has a blocking effect on the descent of the drop hammer; the protective member can be opened away from each other, so that the drop hammer can hit the hammer pad. By providing the protective member, when the protective member is opened away from each other, the drop hammer can hit the hammer pad to complete the probing action; when the protective member is closed, it has a blocking effect on the downward movement of the drop hammer, thereby avoiding injuring workers working near the probe rod, reducing the probability of safety accidents, and improving the safety of equipment use.

Description

Technical Field

[0001] The invention relates to the technical field of engineering survey, and in particular to a cone dynamic penetration equipment with a safety device. Background Art

[0002] Penetration testing is an on-site experimental method for measuring the density and strength of soft soil. The penetrator is a conical probe of a specific specification. During testing, the probe is connected to the drill pipe, and the drill pipe is continuously lengthened as the test depth increases. Penetration testing is a method used in engineering geological surveys to directly test the physical and mechanical properties of soil layers at the drilling site. It uses external force to force a specialized test probe into the soil layer, and the resistance during penetration, rotation, and withdrawal is used to determine the physical and mechanical properties of the soil. There are different types of penetration testing: static penetration testing, dynamic penetration testing, and impact vibration penetration testing.

[0003] Currently, cone penetrating sounding equipment typically uses the energy of a drop hammer with a specific weight and drop distance to drive a standard-sized conical probe into the soil. Specifically, the probe rod is attached to a guide rod with a hammer pad at its lower end. When the drop hammer strikes the hammer pad, it drives the probe rod downward. The soil's properties are determined by the ease of penetration (penetration). During operation, a worker typically controls the drop hammer, raising and lowering it to strike the probe rod, while another worker closely monitors its penetration. Furthermore, the probe rod is often long, making it prone to misalignment during hammering. This requires a worker to closely correct the probe after each lift. If a worker approaches the rising hammer while the hammer is being raised and fails to move away in time, and the other worker lowers the hammer to strike the rod, this can easily injure the worker, leading to unnecessary safety incidents. Summary of the Invention

[0004] In order to overcome the problem of safety risks when workers of existing dynamic probing equipment operate close to the probe rod, the present invention provides a cone dynamic probing equipment with a safety device.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A cone dynamic probing device with a safety device includes a frame, a guide rod and a probe rod. The probe rod is fixedly connected to the bottom of the guide rod. A hammer pad is fixedly arranged at the lower end of the guide rod. A drop hammer is sleeved on the guide rod. The device also includes a driving device. The driving device can drive the drop hammer to move up and down relative to the guide rod, so that the drop hammer can hit the hammer pad to drive the probe rod to move downward. The device also includes a protective mechanism. The protective mechanism includes a support frame and an openable and closable protective member. The support frame is connected to the frame for supporting and connecting the protective member. When the protective member is closed, it is distributed on the outer periphery of the guide rod, which has a blocking effect on the descent of the drop hammer. The protective members can be opened away from each other, so that the drop hammer can hit the hammer pad.

[0007] In this application, by setting up openable and closable protective parts, when the protective parts are opened and moved away from each other, the falling hammer can hit the hammer pad to complete the probing action; when the protective parts are closed, it has a blocking effect on the downward movement of the falling hammer, thereby avoiding injuring workers working near the probe rod, reducing the probability of safety accidents, and improving the safety of equipment use.

[0008] Obviously, when the guard is closed, it is located between the drop hammer and the hammer pad to form a blocking effect; there can be one or more guards; when the guard is closed, it can partially abut, fully abut, or not abut the guide rod.

[0009] Furthermore, the openable and closable protective member is a self-centering clamp, and when the protective member is closed, it abuts against the guide rod, so that the guide rod is in a vertical up and down state.

[0010] In this embodiment, the preferred protective member is a self-centering clamp, which abuts the guide rod when closed / clamped, so that it not only has a protective function but also plays a role in straightening, further preventing workers from getting close to the probe rod and improving safety performance.

[0011] Furthermore, the protective structure includes two symmetrically arranged protective members. When the protective members are closed, the inner wall surfaces of the two protective members fit the guide rod.

[0012] In this embodiment, the number of protective members is preferably set to two. After the two protective members are closed, the inner wall surface fits the guide rod.

[0013] Furthermore, the protective mechanism also includes a movable plate and a driving unit. The movable plate is slidably connected to the support frame. The driving unit is used to drive the movable plate to slide relative to the support frame. First tooth plates are symmetrically arranged on both sides of the movable plate. Each first tooth plate corresponds to a gear. The gear is rotatably connected to the support frame through a connecting shaft. The protective member is slidably connected to the support frame through a connecting frame. The connecting frames corresponding to the two protective members are symmetrically arranged on both sides of the movable plate. A connecting rod is arranged between the connecting frame and the connecting shaft to form a crank slider mechanism, so that when the movable plate slides relative to the support frame, it drives the connecting shaft to rotate, thereby realizing the synchronous opening and closing of the two protective members.

[0014] In this embodiment, the synchronous opening and closing of the two guards is achieved by symmetrically arranging the first tooth plate, the gear, the connecting shaft, the connecting rod and the connecting frame.

[0015] Furthermore, the driving unit includes a second motor, a movable frame and a fan-shaped toothed disc. The movable frame and the movable plate are fixedly connected, and the second toothed plate is symmetrically arranged on the inner side of the movable frame. The first toothed plate and the second toothed plate have the same extension direction. The second motor drives the fan-shaped toothed disc so that the second motor can control the movable plate to slide relative to the support frame.

[0016] In this embodiment, the second motor, the sector-shaped toothed disc and the second toothed plate are used to realize rapid sliding control of the sliding plate, thereby realizing rapid opening and closing of the protective member.

[0017] Furthermore, the protective member is a multi-layer retaining ring structure in the vertical direction, elastic components are provided between adjacent retaining rings, and the connecting frame is fixedly connected to the bottom retaining ring.

[0018] In this embodiment, by configuring the protective parts into a multi-layer structure and then setting elastic components between adjacent retaining rings, when the falling hammer falls on the protective parts in advance, buffering can be performed between the protective parts, thereby reducing the impact energy to prevent the protective parts from being directly deformed and damaged, thereby improving the protection effect and further improving the safety factor.

[0019] Furthermore, the elastic foot includes multiple springs and limit columns arrayed between adjacent retaining rings; in the adjacent retaining rings, the lower end of the limit column is fixedly connected to the lower retaining ring, and the upper retaining ring is correspondingly provided with a limit hole, and the spring is sleeved in the area where the limit column is located between the adjacent retaining rings.

[0020] In this embodiment, a spring is used as the elastic member, and a limiting column is added as described above to prevent the spring from falling out.

[0021] Furthermore, the support frame is movably connected to the frame and is also provided with a lifting assembly, which is fixed on the frame. The execution end of the lifting assembly is fixedly connected to the support frame, so that the height of the protective member relative to the guide rod can be adjusted.

[0022] In this embodiment, by adding a lifting component, the support frame can be raised and lowered, thereby driving the protective member to be raised and lowered, so that the height of the protective member relative to the guide rod can be adjusted. As the probing depth of the probe rod changes, the protective member can be adjusted to a suitable position between the drop hammer and the hammer pad.

[0023] Furthermore, it also includes a positioning component, which includes a positioning hole and a positioning column. The positioning hole is a vertical through hole opened on the support frame, and the positioning column is vertically fixed on the frame. The support frame can be smoothly raised and lowered through the positioning component and the support component.

[0024] In this embodiment, a positioning assembly is further provided, and the support frame and the positioning column are vertically slidable. When the support assembly performs an end action, the positioning assembly can assist in supporting the limit to achieve a smooth lifting and lowering of the support frame.

[0025] Furthermore, a plurality of moving wheels are provided below the bottom of the rack to facilitate movement of the equipment; a plurality of fixing holes are also provided on the bottom of the rack, and the fixing holes are vertical through holes for passing fixing nails.

[0026] In this embodiment, moving wheels are provided to facilitate the overall movement of the device; furthermore, fixing nails are provided, and by driving the fixing nails into the bottom surface, the stability of the device operation is greatly improved.

[0027] The beneficial effects of the present invention are:

[0028] 1. By setting up openable and closable protective parts, when the drop hammer falls freely along the guide rod, the two protective parts can be moved away from each other to release the obstruction, so that the drop hammer can hit the hammer pad below, and when the drop hammer is lifted, the two protective parts can quickly approach and wrap around the outside of the guide rod, and the two protective parts retracted under the drop hammer can form a protective skeleton. Once the worker controls the drop hammer to fall prematurely, it can be blocked to avoid injuring workers working near the probe rod, reducing the probability of safety accidents and greatly improving the safety of the equipment during use.

[0029] 2. By setting up multiple semicircular retaining rings to form a protective part, when the two protective parts are closed, they can form a ring against the outside of the guide rod. Whenever the hammer is hit and lifted, the two retaining rings closed for protection can support and limit the middle guide rod, so that the guide rod remains in a vertical state, thereby effectively preventing the probe rod from deviating, reducing the number of times workers support and correct it, and greatly improving the use effect of the device.

[0030] 3. By setting up the lifting assembly and the positioning assembly, the support frame can drive the protective part to rise and fall stably along a straight line through the connecting frame, and then the height of the protective part can be adjusted to adapt to the position where the guide rod drives the probe rod to continuously sink during the hammering process, thereby ensuring the blocking protection effect of the protective part and greatly improving the applicability of the device.

[0031] 4. By arranging an elastic component between two adjacent retaining rings, when the drop hammer falls prematurely and acts on the protective part, a buffering movement can be performed between the two retaining rings, thereby achieving multi-level reduction of energy impact during a heavy blow, thereby preventing the protective part from being directly deformed and damaged, achieving a good protective effect and further improving the safety factor. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 The overall structure of the dynamic penetration equipment provided by the present invention is schematically shown. Figure 1 ;

[0033] Figure 2 The overall structure of the dynamic penetration equipment provided by the present invention is schematically shown. Figure 2 ;

[0034] Figure 3 A schematic diagram of the connection structure of the guide rod in the dynamic penetration equipment provided by the present invention;

[0035] Figure 4 An exploded view of the guide rod, extension rod and probe rod in the dynamic penetration equipment provided by the present invention;

[0036] Figure 5 A schematic diagram of the separation structure of the chassis and the fixing pins in the dynamic penetration equipment provided by the present invention;

[0037] Figure 6 Schematic diagram of the connection structure between the support frame and the protective member in the dynamic penetration equipment provided by the present invention Figure 1 ;

[0038] Figure 7 Schematic diagram of the connection structure between the support frame and the protective member in the dynamic penetration equipment provided by the present invention Figure 2 ;

[0039] Figure 8 A cross-sectional view of the support frame, movable frame and movable plate in the dynamic penetration equipment provided by the present invention;

[0040] Figure 9 A schematic diagram of the connection structure between the connecting shaft and the connecting frame in the dynamic penetration equipment provided by the present invention;

[0041] Figure 10 A schematic diagram of the connection structure between the movable frame and the movable plate in the dynamic penetration equipment provided by the present invention;

[0042] Figure 11 A schematic diagram of the three-dimensional structure of the support frame in the dynamic penetration equipment provided by the present invention;

[0043] Figure 12 An exploded view of a protective component in the dynamic penetration equipment provided by the present invention;

[0044] Figure 13 A longitudinal sectional view of a protective member in the dynamic probing equipment provided by the present invention.

[0045] The following are marked in the figure: 1. Base frame; 2. Moving wheel; 3. Fixing hole; 4. Fixing nail; 5. Fixing frame; 6. Guide wheel; 7. Support seat; 8. Winding drum; 9. First motor; 10. Driving wheel; 11. Driven wheel; 12. Transmission belt; 13. Wire rope; 14. Electromagnet; 15. Drop hammer; 16. Guide rod; 17. Hammer pad; 18. Stop cap; 19. Extension rod; 20. Probe rod; 21. Conical probe; 22. Hydraulic cylinder; 23. Support frame; 24. Positioning hole; 25. Positioning column; 26. Clamping sleeve; 27. Connecting frame; 28. Movable frame; 29. ​​Movable plate; 30. Protective member; 31. Connecting shaft; 32. Gear; 33. First tooth plate; 34. First fixed arm; 35. Second fixed arm; 36. Connecting block; 37. Second motor; 38. Fan-shaped toothed disc; 39. Second tooth plate; 40. Limiting block; 41. Limiting groove; 300. Retaining ring; 301. Spring; 302. Limiting column; 303. Limiting hole. DETAILED DESCRIPTION

[0046] The present invention will be further described below with reference to the accompanying drawings.

[0047] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0048] like Figures 1-13 As shown, the present invention provides a cone dynamic probing device with a safety device.

[0049] The cone dynamic probing equipment with a safety device includes a frame, a guide rod 16 and a probe rod 20. The probe rod 20 is fixedly connected to the bottom of the guide rod 16. A hammer pad 17 is fixedly arranged at the lower end of the guide rod 16. A drop hammer 15 is sleeved on the guide rod 16. The equipment also includes a driving device, which can drive the drop hammer 15 to move up and down relative to the guide rod 16. The drop hammer 15 can hit the hammer pad 17 to drive the probe rod 20 to move downward. The equipment also includes a protective mechanism, which includes a support frame 23 and an openable and closable protective member 30. The support frame 23 is connected to the frame for supporting and connecting the protective member 30. When the protective member 30 is closed, it is distributed on the outer periphery of the guide rod 16, which has a blocking effect on the descent of the drop hammer 15. The protective member 30 can be opened away from each other so that the drop hammer 15 can hit the hammer pad 17.

[0050] In the present application, an openable and closable protective member 30 is provided. When the protective members 30 are opened and moved away from each other, the drop hammer 15 can strike the hammer pad 17 to complete the probing action. When the protective member 30 is closed, it has a blocking effect on the downward movement of the drop hammer 15, thereby avoiding injuring workers working near the probe rod 20, reducing the probability of safety accidents, and improving the safety of equipment use.

[0051] Obviously, when the protective member 30 is closed, it is located between the drop hammer 15 and the hammer pad 17 to form a blocking effect; the protective member 30 can be one or more; when the protective member 30 is closed, it can partially abut, fully abut, or not abut the guide rod 16.

[0052] Specifically, the frame includes a base frame 1 and a fixed frame 5. The fixed frame 5 is fixed on the top of the base frame 1, and the top of the base frame 1 is connected to a support seat 7 close to the fixed frame 5. The top of the base frame 1 is provided with a guide wheel 6. The top of the support seat 7 is rotatably installed with a winding drum 8, and one end of the winding drum 8 is connected to a driving device. A steel wire rope 13 is provided around the outer wall of the winding drum 8. One end of the steel wire rope 13 is passed around the guide wheel 6 and is connected to an electromagnet 14, and the bottom end of the electromagnet 14 is connected to a probe assembly.

[0053] The probe assembly includes a guide rod 16, the top of the guide rod 16 is connected to a stop cap 18 by a thread, and a hammer pad 17 is fixed to the bottom end of the guide rod 16, the outer wall of the guide rod 16 is provided with a drop hammer 15, the electromagnet 14 is sleeved outside the guide rod 16 and is located above the drop hammer 15, the bottom end of the hammer pad 17 is connected to an extension rod 19 by a thread, the bottom end of the extension rod 19 is connected to a probe rod 20 by a thread, and a conical probe 21 is fixed to the bottom end of the probe rod 20.

[0054] The driving device includes a first motor 9 fixed on the inner side of the support base 7. The output end of the first motor 9 extends to the outside of the support base 7 and is connected to a driving wheel 10. One end of the winding drum 8 is connected to a driven wheel 11, and a transmission belt 12 is provided between the driven wheel 11 and the driving wheel 10.

[0055] When the present invention is in use, the probe rod 20 can be initially inserted into a preset borehole on the ground through the conical probe 21, and the drop hammer 15 and the electromagnet 14 can be sequentially sleeved on the guide rod 16. The stop cap 18 is screwed on the top of the guide rod 16 to limit the position, so as to prevent the electromagnet 14 from driving the drop hammer 15 away from the guide rod 16. At the same time, as the test depth increases, the number of extension rods 19 installed can be continuously increased.

[0056] By starting the first motor 9, the first motor 9 drives the driving wheel 10 to rotate, and then the driving wheel 10 drives the driven wheel 11 to rotate through the transmission belt 12, so that the driven wheel 11 drives the winding drum 8 to rotate. As the winding drum 8 rotates forward and backward, the wire rope 13 connected thereto can be retracted and released, so that the wire rope 13 drives the electromagnet 14 to rise and fall along the guide wheel 6, and when the wire rope 13 drives the electromagnet 14 to descend along the guide rod 16, the electromagnet 14 can contact the drop weight 15 below. At this time, the electromagnet The iron 14 is energized and attracts the drop hammer 15, so that the steel wire 13 can drive the drop hammer 15 to rise through the electromagnet 14. After rising to a high place, the electromagnet 14 is de-energized to release the adsorption, so that the drop hammer 15 can fall freely along the guide rod 16 and hammer the hammer pad 17, so that the impact force acts on the probe rod 20 through the extension rod 19, so that the probe rod 20 penetrates the soil layer through the conical probe 21. By controlling the drop hammer 15 to continuously hit the hammer pad 17, the probe rod 20 can continue to penetrate the soil layer, thereby detecting the properties of the soil layer;

[0057] In addition, different models of drop hammers 15, probes 20 and cone probes 21 can be selected according to different soil layer structures. Among them, light drop hammers 15, probes 20 and cone probes 21 are suitable for shallow fill, sand, silt and clay, while heavy ones are suitable for sand, medium-density or less gravel and extremely soft rock, and ultra-heavy ones are suitable for dense and very dense gravel, soft rock and extremely soft rock. Different models have different penetration index readings. This is an existing technical means, so it will not be described in detail.

[0058] Furthermore, moving wheels 2 are provided at the four ends of the bottom of the base frame 1, and a reinforcement component is provided on the base frame 1.

[0059] The reinforcement component includes fixing holes 3 symmetrically arranged at four ends of the base frame 1 close to one side of the moving wheel 2 , and fixing nails 4 pass through the interior of the fixing holes 3 .

[0060] By providing the moving wheels 2, it is convenient to push and pull the device, and after it is moved into place, the fixing nails 4 can be passed through the fixing holes 3 and driven into the ground, thereby greatly improving the stability of the device.

[0061] Furthermore, the openable and closable protective member 30 is a self-centering fixture. When the protective member 30 is closed, it abuts against the guide rod 16, so that the guide rod 16 is in a vertical up and down state.

[0062] In this embodiment, the preferred protective member 30 is a self-centering clamp, which abuts the guide rod 16 when closed / clamped, so that it not only has a protective function but also plays a role in straightening, further preventing workers from getting close to the probe rod 20 and improving safety performance.

[0063] Furthermore, the protection structure includes two symmetrically arranged protection members 30 . When the protection members 30 are closed, the inner wall surfaces of the two protection members 30 fit the guide rod 16 .

[0064] In this embodiment, the number of the protective members 30 is preferably set to two. After the two protective members 30 are closed, the inner wall surfaces fit the guide rod 16 .

[0065] Furthermore, the protective mechanism also includes a movable plate 29 and a driving unit. The movable plate 29 is slidably connected to the support frame 23. The driving unit is used to drive the movable plate 29 to slide relative to the support frame 23. First tooth plates 33 are symmetrically arranged on both sides of the movable plate 29. Each first tooth plate 33 is correspondingly provided with a gear 32. The gear 32 is rotatably connected to the support frame 23 through a connecting shaft 31. The protective member 30 is slidably connected to the support frame 23 through a connecting frame 27. The connecting frames 27 corresponding to the two protective members 30 are symmetrically arranged on both sides of the movable plate 29. A connecting rod is arranged between the connecting frame 27 and the connecting shaft 31 to form a crank slider mechanism, so that when the movable plate 29 slides relative to the support frame 23, it drives the connecting shaft 31 to rotate, thereby realizing the synchronous opening and closing of the two protective members 30.

[0066] In this embodiment, the synchronous opening and closing of the two guards 30 is achieved by symmetrically arranging the first tooth plate 33 , the gear 32 , the connecting shaft 31 , the connecting rod and the connecting frame 27 .

[0067] Furthermore, the driving unit includes a second motor 37, a movable frame 28 and a fan-shaped toothed disc 38. The movable frame 28 and the movable plate 29 are fixedly connected, and the second toothed plate 39 is symmetrically arranged on the inner side of the movable frame 28. The first toothed plate 33 and the second toothed plate 39 extend in the same direction. The second motor 37 drives the fan-shaped toothed disc 38, so that the second motor 37 can control the movable plate 29 to slide relative to the support frame 23.

[0068] In this embodiment, the second motor 37 , the sector gear disc 38 and the second gear plate 39 are used to realize the rapid sliding control of the sliding plate, thereby realizing the rapid opening and closing of the protective member 30 .

[0069] Furthermore, the protective member 30 is a multi-layer retaining ring 300 structure in the vertical direction, elastic components are provided between adjacent retaining rings 300, and the connecting frame 27 is fixedly connected to the bottom retaining ring 300.

[0070] In this embodiment, by configuring the protective member 30 as a multi-layer structure and then setting an elastic component between adjacent retaining rings 300, when the drop hammer 15 falls on the protective member 30 in advance, buffering can be performed between the protective members 30, thereby reducing the impact energy to prevent the protective member 30 from being directly deformed and damaged, thereby improving the protection effect and further improving the safety factor.

[0071] Furthermore, the elastic foot includes a plurality of springs 301 and limiting columns 302 arrayed between adjacent retaining rings 300; in adjacent retaining rings 300, the lower end of the limiting column 302 is fixedly connected to the lower retaining ring 300, and the upper retaining ring 300 is correspondingly provided with a limiting hole 303, and the spring 301 is arranged in the area where the limiting column 302 is located between the adjacent retaining rings 300.

[0072] In this embodiment, a spring 301 is used as an elastic member, and a limiting column 302 is additionally provided as described above to prevent the spring 301 from falling out.

[0073] Furthermore, the support frame 23 is movably connected to the frame and is also provided with a lifting assembly, which is fixed on the frame. The execution end of the lifting assembly is fixedly connected to the support frame 23, so that the height of the protective member 30 relative to the guide rod 16 can be adjusted.

[0074] In this embodiment, by adding a lifting component, the support frame 23 can be raised and lowered, thereby driving the protective member 30 to be raised and lowered, so that the height of the protective member 30 relative to the guide rod 16 can be adjusted. As the probing depth of the probe rod 20 changes, the protective member 30 can be adjusted to a suitable position between the drop hammer 15 and the hammer pad 17.

[0075] Furthermore, it also includes a positioning component, which includes a positioning hole 24 and a positioning column 25. The positioning hole 24 is a vertical through hole opened on the support frame 23, and the positioning column 25 is vertically fixed on the frame. The support frame 23 can be smoothly lifted and lowered through the positioning component and the support component.

[0076] In this embodiment, a positioning assembly is further provided, and the support frame 23 and the positioning column 25 are vertically slidable. When the support assembly performs an end action, the positioning assembly can assist in supporting the limit to achieve a smooth lifting and lowering of the support frame 23.

[0077] Specifically, the protection mechanism includes a support frame 23, a lifting assembly is provided between the support frame 23 and the base frame 1, and slidable clamping sleeves 26 are symmetrically provided at both ends of the support frame 23, one end of each of the two clamping sleeves 26 is fixed with a connecting frame 27, and the top ends of the two connecting frames 27 are symmetrically connected to the bottom of the electromagnet 14 with a protective member 30, and the probe assembly is located between the two protective members 30;

[0078] The lifting assembly includes hydraulic cylinders 22 symmetrically fixed on both sides of the top of the base frame 1. The top ends of the two hydraulic cylinders 22 are respectively fixed to the two ends of the bottom of the support frame 23, and a positioning assembly is provided between the support frame 23, the base frame 1 and the fixed frame 5.

[0079] The positioning assembly includes two positioning holes 24 symmetrically opened at one end of the support frame 23 relative to the probe assembly. A positioning column 25 is connected through the interior of the positioning hole 24. The bottom end of the positioning column 25 is fixedly connected to the base frame 1, and the top end of the positioning column 25 is inclined and fixedly connected to the fixing frame 5.

[0080] One end of the support frame 23 is symmetrically connected to two connecting shafts 31 through a bearing, and the bottom ends of the two connecting shafts 31 are symmetrically fixed with first fixed arms 34. The two first fixed arms 34 are symmetrically connected to the second fixed arms 35 via a rotating axis relative to one end of the connecting shaft 31. The second fixed arm 35 is rotatably connected to the connecting block 36 via a rotating axis relative to one end of the first fixed arm 34, and the two connecting blocks 36 are respectively fixedly connected to the two ferrules 26. A transmission assembly is provided at the top of the support frame 23, and the transmission assembly is used to drive the two connecting shafts 31 to move toward or away from each other.

[0081] The transmission assembly includes a movable frame 28 arranged at one end of the top of the support frame 23, a movable plate 29 is fixed to one end of the movable frame 28, gears 32 are fixed to the tops of the two connecting shafts 31, the movable plate 29 is located between the two gears 32, and first tooth plates 33 meshing with the gears 32 are provided on both sides of the movable plate 29, second tooth plates 39 are fixed on both sides of the inside of the movable frame 28, and a second motor 37 is fixed to one end of the bottom of the support frame 23, the output end of the second motor 37 passes through the support frame 23 and is connected to a fan-shaped toothed disc 38, and the fan-shaped toothed disc 38 is meshed with the second toothed disc 39.

[0082] By starting the second motor 37, when the drop hammer 15 freely falls along the guide rod 16, the second motor 37 drives the sector toothed disc 38 to rotate, so that the sector toothed disc 38 drives the second toothed plate 39 on one side of the movable frame 28 to move, and then the second toothed plate 39 drives the movable plate 29 to move through the movable frame 28, so that the movable plate 29 drives the two gears 32 to rotate inward at the same time through the first toothed plates 33 on both sides, and then the gear 32 can drive the first fixed arm 34 to rotate through the connecting shaft 31, so that the first fixed arm 34 drives the clamping sleeve 26 to slide on the support frame 23 through the second fixed arm 35, and then the clamping sleeve 26 drives the connecting frame 27 to move, so that the connecting frame 27 drives the guard 30 to move, so that the two guards 30 can be quickly moved away from each other, thereby releasing the obstruction, so that the drop hammer 15 can hammer on the hammer pad 17 below;

[0083] The second motor 37 drives the fan-shaped toothed disc 38 to rotate as the drop hammer 15 rises. The fan-shaped toothed disc 38 can mesh with the second toothed plate 39 on the other side of the movable frame 28, so that the movable frame 28 drives the movable plate 29 to move in the opposite direction and reset, so that the two gears 32 drive the connecting shaft 31 to rotate outward at the same time. Then, under the transmission of the first fixed arm 34, the second fixed arm 35 and the clamping sleeve 26 and other structures, the connecting frame 27 can drive the two guards 30 to quickly approach and wrap around the guide rod 16. At this time, the guards 30 are blocked under the lifted drop hammer 15. Then, after the drop hammer 15 is lifted, the two guards 30 can be retracted under the drop hammer 15 to form a protective frame. Once the worker controls the drop hammer 15 to fall in advance, it can be blocked, thereby avoiding injuring the worker working near the probe rod 20.

[0084] After the operator leaves the probe rod 20, the second motor 37 drives the sector gear disc 38 to rotate again, thereby controlling the two guards 30 to separate and release the blockage, so that the drop hammer 15 can fall normally, greatly improving the safety of the equipment when in use;

[0085] In addition, the support frame 23 can be driven to move by the hydraulic cylinder 22, and with the cooperation of the positioning hole 24 and the positioning column 25, the support frame 23 can drive the protective member 30 to rise and fall stably along a straight line through the connecting frame 27, and then the height of the protective member 30 can be adjusted to adapt to the position where the guide rod 16 drives the probe rod 20 to continuously sink during the hammering process, thereby ensuring the blocking and protective effect of the protective member 30 and greatly improving the applicability of the device.

[0086] A limiting block 40 is fixed to one end of the bottom of the movable plate 29 close to the movable frame 28 , and a limiting groove 41 matching the limiting block 40 is formed on the top side of the support frame 23 .

[0087] By providing the limiting block 40 and the limiting groove 41 , the movable plate 29 can drive the limiting block 40 to slide in the limiting groove 41 . With the cooperation of this structure, the stability of the movable frame 28 and the movable plate 29 can be further improved.

[0088] The protective member 30 includes three baffle rings 300 distributed from top to bottom, and an elastic component is provided between two adjacent baffle rings 300;

[0089] The elastic component includes a plurality of springs 301 fixed in an array between two retaining rings 300, and the two outermost springs 301 are both connected by limiting columns 302, the bottom ends of the limiting columns 302 are fixedly connected to the retaining ring 300, and a limiting hole 303 is provided on the bottom side of the retaining ring 300 near the top of the limiting column 302, and the top end of the limiting column 302 is inserted into the limiting hole 303.

[0090] Since the protective member 30 is composed of a plurality of semicircular retaining rings 300, and the two protective members 30 can be closed to form a ring against the outside of the guide rod 16, whenever the drop hammer 15 is hammered and lifted, the two retaining rings 300 closed for protection can support and limit the middle guide rod 16, thereby keeping the guide rod 16 in a vertical state, effectively preventing the probe rod 20 from deflecting, reducing the number of times the worker needs to support and correct, and greatly improving the use effect of the device;

[0091] At the same time, since an elastic component is provided between the retaining rings 300, when the drop hammer 15 falls in advance and acts on the protective part 30, the uppermost retaining ring 300 can squeeze the spring 301 and make the limiting column 302 slide in the limiting hole 303, and then the middle retaining ring 300 can continue to act with the spring 301 below, thereby achieving multi-level reduction of energy impact during a heavy blow to prevent the protective part 300 from being directly deformed and damaged, with good protection effect and further improving the safety factor.

[0092] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A cone dynamic probing device with a safety device, comprising a frame, a guide rod (16) and a probe rod (20), wherein the probe rod (20) is fixedly connected to the bottom of the guide rod (16), a hammer pad (17) is fixedly provided at the lower end of the guide rod (16), a drop hammer (15) is sleeved on the guide rod (16), and further comprising a driving device, wherein the driving device can drive the drop hammer (15) to move up and down relative to the guide rod (16), so that the drop hammer (15) can hit the hammer pad (17) to drive the probe rod (20) to move downward, characterized in that The machine also includes a protection mechanism, which includes a support frame (23) and an openable and closable protection member (30). The support frame (23) is connected to the frame and is used to support and connect the protection member (30). When the protection member (30) is closed, it is distributed on the periphery of the guide rod (16) to produce a blocking effect on the descent of the drop hammer (15). The protection members (30) can be opened away from each other so that the drop hammer (15) can hit the hammer pad (17). The protection mechanism includes a movable plate (29) and a driving unit. The movable plate (29) is slidably connected to the support frame (23). The driving unit is used to drive the movable plate (29) to slide relative to the support frame (23). First tooth plates (33) are symmetrically arranged on both sides of the movable plate (29). Each first tooth plate (33) is correspondingly provided with a gear (32). The gear (32) is rotatably connected to the support frame (23) through a connecting shaft (31). The protective member (30) is slidably connected to the support frame (23) through a connecting frame (27). The connecting frames (27) corresponding to the two protective members (30) are symmetrically arranged on both sides of the movable plate (29). A connecting rod is arranged between the connecting frame (27) and the connecting shaft (31) to form a crank slider mechanism, so that when the movable plate (29) slides relative to the support frame (23), the connecting shaft (31) is driven to rotate, thereby realizing the synchronous opening and closing of the two protective members (30); The driving unit includes a second motor (37), a movable frame (28) and a sector-shaped toothed disc (38). The movable frame (28) and the movable plate (29) are fixedly connected, and the second toothed plate (39) is symmetrically arranged on the inner side of the movable frame (28). The first toothed plate (33) and the second toothed plate (39) extend in the same direction. The second motor (37) drives the sector-shaped toothed disc (38) so that the second motor (37) can control the movable plate (29) to slide relative to the support frame (23).

2. The cone dynamic penetration equipment with a safety device according to claim 1, characterized in that: The openable and closable protective member (30) is a self-centering clamp. When the protective member (30) is closed, it abuts against the guide rod (16), so that the guide rod (16) is in a vertical up and down state.

3. The cone dynamic penetration equipment with a safety device according to claim 2, characterized in that: The protection mechanism comprises two symmetrically arranged protection members (30). When the protection members (30) are closed, the inner wall surfaces of the two protection members (30) are in contact with the guide rod (16).

4. The cone dynamic penetration equipment with a safety device according to claim 1, characterized in that: The protective member (30) is a multi-layer retaining ring (300) structure in the vertical direction, elastic components are provided between adjacent retaining rings (300), and the connecting frame (27) is fixedly connected to the bottom retaining ring (300).

5. The cone dynamic penetration equipment with a safety device according to claim 4, characterized in that: The elastic component comprises a plurality of springs (301) and limiting columns (302) arrayed between adjacent retaining rings (300); in the adjacent retaining rings (300), the lower ends of the limiting columns (302) are fixedly connected to the lower retaining ring (300), and the upper retaining ring (300) is provided with a corresponding limiting hole (303); the spring (301) is sleeved in the area where the limiting columns (302) are located between the adjacent retaining rings (300).

6. The cone dynamic penetration equipment with a safety device according to claim 1, characterized in that: The support frame (23) is movably connected to the frame and is further provided with a lifting assembly, which is fixed to the frame. The execution end of the lifting assembly is fixedly connected to the support frame (23), so that the height of the protective member (30) relative to the guide rod (16) can be adjusted.

7. The cone dynamic penetration equipment with a safety device according to claim 6, characterized in that: It also includes a positioning assembly, which includes a positioning hole (24) and a positioning column (25). The positioning hole (24) is a vertical through-hole opened on the support frame (23). The positioning column (25) is vertically fixed on the frame. The support frame (23) is smoothly lifted and lowered by the positioning assembly and the support assembly.

8. The cone dynamic penetration equipment with a safety device according to claim 1, characterized in that: A plurality of moving wheels (2) are provided below the bottom of the frame to facilitate the movement of the equipment; a plurality of fixing holes (3) are also provided on the bottom of the frame, and the fixing holes (3) are vertical through holes for passing fixing nails (4).

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