CN114111500A - Hole depth measuring device for geotechnical geological investigation - Google Patents

Abstract

The invention provides a hole depth measuring device for geotechnical geological exploration, belongs to the technical field of geological exploration equipment, and solves the technical problems that a scale is bent and measuring accuracy is influenced due to the fact that an existing motor cannot be timely turned off. This deep measuring device in hole is used in geotechnical geology reconnaissance, including organism and landing leg, the lower extreme at the organism is fixed to the landing leg, the inside of organism is provided with winding mechanism, the last scale that is connected with of winding mechanism, the organism is stretched out to the lower extreme of scale, the lower extreme of scale is connected with the balancing weight, the inside of organism is provided with speed-limiting mechanism, speed-limiting mechanism includes the speed-limiting seat, the downside of speed-limiting seat is fixed with first telescopic link, the lower extreme and the organism of first telescopic link are connected, the outside cover of first telescopic link is equipped with first spring, the speed-limiting groove that link up from top to bottom has been seted up in the speed-limiting seat, the drive chamber has been seted up to the inside of speed-limiting seat, drive chamber and speed-limiting groove intercommunication. The invention has the advantage that after the balancing weight contacts the ground, the verticality of the graduated scale is ensured, so that the measurement precision is ensured.

Description

Hole depth measuring device for geotechnical geological investigation

Technical Field

The invention belongs to the technical field of geological exploration equipment, relates to a measuring device, and particularly relates to a hole depth measuring device for geotechnical geological exploration.

Background

The rock soil is a general term for any kind of rock and soil composing the earth crust from the viewpoint of engineering and construction, and the rock soil can be subdivided into five major categories of hard rock (hard rock), second hard rock (soft rock), soft weak link, loose non-link and special composition, structure, state and property, and the hole depth needs to be measured when the geological exploration of the rock soil is carried out.

Through retrieval, as disclosed in chinese patent literature, a hole depth measuring device for geotechnical geology reconnaissance [ application number: 202020074792.8, respectively; publication No.: CN211291292U ]. When the scheme is used, the reversing switch of the motor is opened, the pressing rod is pressed to move downwards, the pressing rod drives the pressing plate to move downwards, the two pushing rods drive the two sliding plates to be away from each other, the two sliding plates drive the anti-skidding teeth to move to remove the fixing of the tape measure, meanwhile, the pressing plate drives the connecting block to move downwards, the connecting block drives the second conducting block to remove the first conducting block, the motor is electrified to rotate reversely, the motor drives the winding roller to rotate reversely, thereby the tape measure wound on the winding roller is released, at the moment, the tape measure is pulled to move downwards through the balancing weight, when the balancing weight is in contact with the bottom of the hole, the pressing rod is loosened, at the moment, the springs reset, the two sliding plates drive the two anti-skidding teeth to reset to fix the tape measure, meanwhile, the motor is powered off, the hole depth tape measure can be obtained according to scales on the motor at the moment.

The winding roller disclosed in the patent can realize winding and unwinding of the tape measure, but the device can not immediately stop the motor due to certain reaction time required by workers after the balancing weight is in contact with the ground, so that the tape measure is bent, and the measuring precision is influenced.

Disclosure of Invention

The invention aims to solve the problems in the prior art, provides a hole depth measuring device for geotechnical geology exploration, and aims to solve the technical problems that: how to realize after the balancing weight contacts ground, guarantee the perpendicular of scale to guarantee measuring precision.

The purpose of the invention can be realized by the following technical scheme:

a hole depth measuring device for geotechnical geology reconnaissance comprises a machine body and supporting legs, wherein the supporting legs are fixed at the lower end of the machine body, a winding mechanism is arranged inside the machine body, a graduated scale is connected onto the winding mechanism, the lower end of the graduated scale extends out of the machine body, a balancing weight is connected to the lower end of the graduated scale, a speed limiting mechanism is arranged inside the machine body and comprises a speed limiting seat, a first telescopic rod is fixed to the lower side of the speed limiting seat, the lower end of the first telescopic rod is connected with the machine body, a first spring is sleeved on the outer side of the first telescopic rod, a speed limiting groove which is communicated up and down is formed in the speed limiting seat, a driving cavity is formed in the speed limiting seat and communicated with the speed limiting groove, a driving screw rod is rotatably connected in the driving cavity and comprises a left thread section and a right thread section, a driving plate is in threaded connection with both the left thread section and the right thread section, and an extrusion seat is fixedly connected on the driving plate, the extrusion seats are connected with the speed limiting grooves in a sliding mode, friction pads are arranged on opposite surfaces of the two extrusion seats, two ends of the driving screw extend out of the speed limiting seats, and two ends of the driving screw are connected with driving assemblies.

The working principle of the invention is as follows: when the scale is in work, the scale is paid off by the winding mechanism, the scale is pulled to move downwards under the action of the gravity of the balancing weight, the two sides of the scale are extruded by the friction pads in the process of moving downwards of the scale, so that the descending speed of the scale is limited, meanwhile, the extrusion seat can move downwards for a certain distance under the action of the friction force in the process of descending of the scale, so that the first spring is compressed, after the balancing weight contacts the bottom of the hole, even if the winding mechanism continues to work, the scale can only be bent above the extrusion seat, the extrusion seat can be rebounded by the first spring, the scale below the extrusion seat is further tensioned, so that the scale below the machine body is kept vertical, the measurement precision is improved, and after the measurement is finished, the driving screw rod can be driven to rotate by the driving assembly, the driving screw drives the two extrusion seats to move relatively, the graduated scale is loosened, and then the winding mechanism is utilized to wind the graduated scale, so that the extrusion mechanism cannot influence the winding of the graduated scale.

A guide sliding rod is fixed in the driving cavity, and the driving plate is connected with the guide sliding rod in a sliding mode.

By adopting the structure, the guide slide rod can be utilized to limit and guide the extrusion seat in the movement process of the extrusion seat, so that the movement stability of the extrusion seat is ensured.

Winding mechanism includes the mounting panel, the inside upper end at the organism is fixed to mounting panel bilateral symmetry, and swivelling joint has the pivot on the mounting panel, fixedly connected with winding drum between two pivots, the equal fixedly connected with drive seat of the other end of two pivots, the inside of organism be provided with drive seat complex actuating mechanism.

By adopting the structure, the driving seat is driven to rotate by the driving mechanism, and the driving seat drives the rotating shaft to rotate forward and backward, so that the winding drum rotates forward and backward, and the winding and unwinding work of the graduated scale is realized.

Actuating mechanism includes two supporting seats, supporting seat fixed connection is in the inside of organism, and supporting seat upside sliding connection has the sliding seat, the sliding seat upside is fixed with the pillar, the upper end of pillar is fixed with the driving motor fixed plate, be fixed with driving motor on the driving motor fixed plate, driving motor's output shaft fixedly connected with drive post, the drive post is the rectangle structure, and the other end of drive post is provided with connects the electric slot, is provided with on the drive seat and connects the electric plug of electric slot complex.

Structure more than adopting, at the during operation, can drive driving motor through the sliding seat and slide for the drive post removes towards the driving seat, will connect the electric plug to insert to connect in the electric slot, thereby driving motor's circuit switches on and begins work, and after work is accomplished, will connect the electric plug to shift out to connect the electric slot, thereby make driving motor can not receive pressure for a long time, realize the protection to driving motor.

The inside of drive seat has been seted up smooth chamber, the internal connection of smooth chamber has the second spring, the spacing slide of other end fixedly connected with of second spring, the opposite side of spacing slide with connect electric plug fixed connection, set up the opening that supplies to connect electric plug to stretch out on the smooth chamber, the drive post sets up with the opening cooperation.

By adopting the structure, in the process of moving the motor outwards, the power connection plug moves outwards along with the power connection slot under the action of the second spring, and only when the driving column is completely separated from the driving seat, the power connection plug can be separated from the power connection slot.

First screw thread chamber has been seted up to the inside of sliding seat, the inside threaded connection in first screw thread chamber has first screw thread post, is fixed with the drive shaft between two first screw thread posts, the drive shaft periphery is fixed with second drive gear, and the upside of balancing weight is fixed with the second pinion rack, and the upper end of second pinion rack stretches into in the organism through the socket, and the second pinion rack meshes with second drive gear, and the lower extreme of socket is fixed with the arc direction cover, and the opening of arc direction cover is downward.

By adopting the structure, when the machine starts working, the gravity of the balancing weight block is utilized to drive the second gear to move downwards, the second gear drives the second driving gear to rotate, so that the two sliding seats are driven to move oppositely through the matching of the first threaded column and the first threaded cavity, the driving motor drives the driving shaft to move towards the driving seat and be inserted into the driving seat, and after the driving column is inserted into a certain position in the driving seat, the second toothed plate is separated from the second driving gear, and when the graduated scale is rolled, in the final stage, the second toothed plate can enter the machine body through the jack and be meshed with the second driving gear, so that the second driving gear is driven to rotate reversely, so that the two sliding seats move reversely, so that the driving column is separated from the driving seat, the driving motor is automatically powered off, and the situation that the graduated scale is rolled excessively is prevented from impacting the machine body is avoided, causing damage to the device.

The drive assembly comprises a first drive gear, the first drive gear is fixedly connected with the drive screw, a first toothed plate is meshed on the first drive gear, a guide sliding groove is formed in the supporting seat, a guide sliding block is fixed on the lower side of the sliding seat and is slidably connected with the guide sliding groove, the lower end of the guide sliding block is located below the supporting seat, and the lower end of the guide sliding block is fixedly connected with the first toothed plate.

Structure more than adopting, because the balancing weight is at the beginning, need drive the sliding seat and carry out relative motion, so when device initial state, the friction pad does not press from both sides tightly the scale, thereby prevent that the friction pad from influencing the balancing weight to the resistance of scale and driving the sliding seat removal, at the initial stage, the balancing weight drives the sliding seat motion in opposite directions, thereby utilize the sliding seat to drive first pinion rack motion, first pinion rack drives first drive gear rotation, make drive screw drive extrusion seat relative motion, after the sliding seat removes appointed position, driving motor switch-on begins work, the friction pad just in time presss from both sides the scale this moment, realize the restriction to balancing weight whereabouts speed.

The outside of balancing weight is fixed with the pull ring, and the downside of organism is fixed with solid fixed ring, gu fixed ring goes up sliding connection has the bracing piece, the other end of bracing piece be fixed with pull ring complex couple.

Structure more than adopting, after the scale rolling is accomplished, can utilize the cooperation of couple and pull ring, fix the balancing weight to prevent when placing, balancing weight whereabouts drive device work.

A plurality of arc-shaped bulges are uniformly distributed on the front side and the rear side of the graduated scale, the distance between every two adjacent arc-shaped bulges is smaller than the height of the friction pad, and the arc-shaped bulges are made of rubber materials.

Structure more than adopting, at the in-process that the scale descends, can utilize the protruding cooperation with the friction pad of arc, carry out the deceleration to the balancing weight, further improvement is to the effect of balancing weight descending speed restriction, also can prevent to contact the back in balancing weight and hole bottom, and the scale continues to pass speed limiting mechanism to guarantee the perpendicular of below scale.

The lower end of the supporting leg is provided with a moving wheel, the upper end of the supporting leg is provided with a second threaded cavity, the lower end in the second threaded cavity is fixedly provided with a rotating motor, the output end of the rotating motor is fixedly provided with a first rotating plate, the upper side of the first rotating plate is fixedly provided with a second telescopic rod, the other end of the second telescopic rod is fixedly provided with a second threaded column, the second threaded column is in threaded connection with the second threaded cavity, the other end of the second threaded column is fixedly provided with a plurality of third telescopic rods, the upper end of each third telescopic rod is fixedly provided with a second rotating plate, the outer side of each third telescopic rod is sleeved with a third spring, the lower end of the machine body is fixedly provided with a connecting seat, the lower side of the connecting seat is fixedly provided with a T-shaped connecting column, the upper side of the second rotating plate is provided with a T-shaped rotating groove, the upper end of the supporting column is provided with a plurality of limiting sliding chutes, and limiting sliding slide bars are slidably connected in the limiting chutes, the upper end and the organism fixed connection of spacing slide bar, the outside sliding connection of landing leg has the lift seat, the lower extreme of lift seat is fixed with a plurality of reference columns, and the upper end of lift seat is fixed with the link, the other end and the connecting seat fixed connection of link.

By adopting the structure, when the device is transferred, the device can be moved by using the movable wheel, at the moment, the third telescopic rod and the third spring extend out of the threaded cavity to support the machine body, so that the vibration generated when the device is moved is buffered, the device is protected, after the device is moved to a specified position, the rotating motor is started to rotate the second threaded column, the second threaded column moves downwards under the matching of the second threaded cavity, the second threaded column drives the third spring to enter the second threaded cavity, the third spring is supported at the upper end of the supporting leg by using the connecting seat, the lifting seat is driven to move downwards by the supporting rod in the moving downwards process of the connecting seat, so that the positioning column is inserted into the ground, the structure is convenient to move, the stability of the device in working can be improved, the third spring and the movable wheel can not be pressed for a long time, and the service cycles of the third spring and the movable wheel can be prolonged, when the movement is needed, the operation is reversed.

Compared with the prior art, this hole depth measuring device for geotechnical geology reconnaissance has following advantage:

1. the calibrated scale is paid off by the winding mechanism, the calibrated scale is pulled to move downwards under the action of the gravity of the balancing weight, in the process of moving downwards, two sides of the calibrated scale are extruded by the friction pads, so that the speed of descending of the calibrated scale is limited, meanwhile, in the process of descending of the calibrated scale, the extrusion seat can move downwards for a certain distance under the action of the friction force, so that the first spring is compressed, after the balancing weight contacts the bottom of the hole, even if the winding mechanism continues to work, the calibrated scale only bends above the extrusion seat, the first spring can be used for rebounding the extrusion seat, the lower calibrated scale is further tensioned, so that the calibrated scale below the machine body is kept vertical, the measurement precision is improved, after the measurement is completed, the driving screw rod can be driven to rotate by the driving component, and the driving screw rod drives the two extrusion seats to move relatively, loosen the scale, then utilize winding mechanism to carry out the rolling to the scale to make extrusion mechanism can not lead to the fact the influence to the rolling of scale.

2. The setting of sliding seat, second drive gear and second pinion rack can carry out auto-power-off to driving motor when the scale rolling to prevent that the rolling is excessive, make balancing weight striking organism, realize the protection to the device, improve the security of using.

3. The setting of arc direction cover, at the in-process that the second pinion rack rises, because the scale is flexible structure, the second pinion rack can produce certain shake, enters into arc direction cover back in the upper end of second pinion rack, can utilize the arc in the arc direction cover to lead to the upper end of second pinion rack to in correcting the socket with the upper end of second pinion rack, make entering into the organism that the second pinion rack can be smooth, guarantee the normal clear of work.

4. The convex setting of arc can improve the speed limit effect to the scale, guarantees the measuring precision.

5. The structure setting of landing leg, the device of not only being convenient for removes, the device's of being convenient for is fixed moreover to can be so that the third spring can not be long-term pressurized with removing the wheel, prolong the third spring and remove the life of wheel.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic structural diagram of a driving seat and a driving column in the present invention.

Fig. 3 is a schematic view of the structure of the driving mechanism of the present invention.

Fig. 4 is a schematic structural view of the speed limiting box of the present invention.

Fig. 5 is a schematic view of the inside structure of the speed limit box of the present invention.

Fig. 6 is a schematic perspective view of the speed limiting mechanism of the present invention.

Fig. 7 is a partially enlarged view of a portion a in fig. 1.

Figure 8 is a schematic view of the construction of a scale according to the present invention.

Fig. 9 is a schematic structural view of a leg according to the present invention.

Fig. 10 is a partial enlarged view at B in fig. 9.

In the figure, 1, a machine body; 2. a support leg; 3. mounting a plate; 4. a rotating shaft; 5. winding the roll; 6. a driving seat; 7. a drive motor; 8. a drive column; 9. a motor fixing plate; 10. a pillar; 11. a sliding seat; 12. a first threaded cavity; 13. a first threaded post; 14. a drive shaft; 15. a second drive gear; 16. a graduated scale; 17. a balancing weight; 18. a second toothed plate; 19. a speed limiting mechanism; 20. a first telescopic rod; 21. a first spring; 22. a guide chute; 23. a guide slider; 24. a first toothed plate; 25. a power connection slot; 26. a slide chamber; 27. a second spring; 28. a limiting sliding plate; 29. connecting a power plug; 30. a speed limiting groove; 31. a speed limiting seat; 32. a drive chamber; 33. a drive screw; 34. a first drive gear; 35. a pressing base; 36. a friction pad; 37. a guide slide bar; 38. a drive plate; 39. an arc-shaped guide cover; 40. a fixing ring; 41. a support bar; 42. hooking; 43. a pull ring; 44. an arc-shaped bulge; 45. a moving wheel; 46. a second threaded cavity; 47. a rotating electric machine; 48. a first rotating plate; 49. a second telescopic rod; 50. a second threaded post; 51. a third telescopic rod; 52. a third spring; 53. a limiting slide bar; 54. a limiting chute; 55. a connecting frame; 56. a lifting seat; 57. a positioning column; 58. a connecting seat; 59. a T-shaped connecting column; 60. a second rotating plate; 61. t-shaped rotary groove.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1-10, the hole depth measuring device for geotechnical geological exploration comprises a machine body 1 and supporting legs 2, wherein the supporting legs 2 are fixed at the lower end of the machine body 1, a winding mechanism is arranged inside the machine body 1, a graduated scale 16 is connected to the winding mechanism, the lower end of the graduated scale 16 extends out of the machine body 1, a counterweight 17 is connected to the lower end of the graduated scale 16, a speed limiting mechanism 19 is arranged inside the machine body 1, the speed limiting mechanism 19 comprises a speed limiting seat 31, a first telescopic rod 20 is fixed at the lower side of the speed limiting seat 31, the lower end of the first telescopic rod 20 is connected with the machine body 1, a first spring 21 is sleeved outside the first telescopic rod 20, a speed limiting groove 30 which is communicated up and down is formed in the speed limiting seat 31, a driving cavity 32 is formed in the speed limiting seat 31, the driving cavity 32 is communicated with the speed limiting groove 30, a driving screw 33 is rotatably connected in the driving cavity 32, the driving screw 33 comprises a left thread section and a right thread section, drive plates 38 are in threaded connection with the left thread section and the right thread section, extrusion seats 35 are fixedly connected to the drive plates 38, the extrusion seats 35 are in sliding connection with the speed limiting grooves 30, friction pads 36 are arranged on opposite surfaces of the two extrusion seats 35, two ends of a drive screw 33 extend out of the speed limiting seats 31, and two ends of the drive screw 33 are connected with drive components.

The working principle of the invention is as follows: during operation, the scale 16 is paid off by the winding mechanism, the scale 16 is pulled to move downwards under the action of gravity of the balancing weight 17, in the process of moving downwards of the scale 16, the friction pads 36 are used for extruding two sides of the scale 16, so that the speed of descending of the scale 16 is limited, in the process of lowering the scale 16, the extrusion seat 35 can move downwards for a certain distance under the action of friction force, so that the first spring 21 is compressed, after the balancing weight 17 contacts the bottom of the hole, even if the winding mechanism continues to work, the scale 16 is only bent above the extrusion seat 35, and the first spring 21 can rebound the extrusion seat 35, so that the scale 16 below the machine body 1 is further tensioned, so that the scale 16 below the machine body 1 is kept vertical, so that the measurement precision is improved, after the measurement is completed, can drive screw 33 rotatory through drive assembly, drive screw 33 drives two extrusion seat 35 relative motion, loosens scale 16, then utilizes winding mechanism to carry out the rolling to scale 16 to make extrusion mechanism can not lead to the fact the influence to the rolling of scale 16.

A guide slide rod 37 is fixed in the driving cavity 32, and a driving plate 38 is connected with the guide slide rod 37 in a sliding manner.

By adopting the structure, in the movement process of the extrusion seat 35, the guide slide rod 37 can be utilized to limit and guide the extrusion seat 35, so that the movement stability of the extrusion seat 35 is ensured.

Winding mechanism includes mounting panel 3, and 3 bilateral symmetry's of mounting panel fix in the inside upper end of organism 1, and swivelling joint has pivot 4 on mounting panel 3, fixedly connected with winding reel 5 between two pivot 4, and the equal fixedly connected with of the other end of two pivot 4 drives seat 6, and the inside of organism 1 is provided with and drives 6 complex actuating mechanism of seat.

By adopting the structure, the driving seat 6 is driven to rotate by the driving mechanism, and the driving seat 6 drives the rotating shaft 4 to rotate forward and backward, so that the winding drum 5 rotates forward and backward, and the winding and unwinding work of the graduated scale 16 is realized.

Actuating mechanism includes two supporting seats, supporting seat fixed connection is in the inside of organism 1, supporting seat upside sliding connection has slide holder 11, 11 upsides of slide holder are fixed with pillar 10, the upper end of pillar 10 is fixed with driving motor 7 fixed plate, be fixed with driving motor 7 on the driving motor 7 fixed plate, the output shaft fixedly connected with drive column 8 of driving motor 7, drive column 8 is the rectangle structure, the other end of drive column 8 is provided with connects electric slot 25, be provided with on the drive holder 6 and connect electric slot 25 complex to connect electric plug 29.

By adopting the structure, when the electric power tool works, the driving motor 7 can be driven to slide through the sliding seat 11, the driving column 8 moves towards the driving seat 6, the electric plug 29 is inserted into the electric slot 25, the circuit of the driving motor 7 is conducted to start working, the electric plug 29 is moved out of the electric slot 25 after the working is completed, and the driving motor 7 is not stressed for a long time, so that the driving motor 7 is protected.

The drive seat 6 has an inside slide cavity 26, the slide cavity 26 has a second spring 27 connected inside, the other end of the second spring 27 is fixedly connected with a limit slide plate 28, the other side of the limit slide plate 28 is fixedly connected with an electric plug 29, the slide cavity 26 has an opening for the electric plug 29 to extend out, and the drive column 8 is matched with the opening.

By adopting the structure, in the process of moving the motor outwards, the power connection plug 29 moves outwards along with the power connection slot 25 under the action of the second spring 27, and only when the driving column 8 is completely separated from the driving seat 6, the power connection plug 29 can be separated from the power connection slot 25.

First screw thread chamber 12 has been seted up to the inside of sliding seat 11, the inside threaded connection of first screw thread chamber 12 has first screw thread post 13, be fixed with drive shaft 14 between two first screw thread posts 13, the 14 periphery of drive shaft is fixed with second drive gear 15, the upside of balancing weight 17 is fixed with second toothed plate 18, the upper end of second toothed plate 18 stretches into in the organism 1 through the socket, second toothed plate 18 and the meshing of second drive gear 15, the lower extreme of socket is fixed with arc direction cover 39, the opening of arc direction cover 39 is downward.

By adopting the structure, when the rolling machine starts working, the gravity of the balancing weight 17 is utilized to drive the second gear to move downwards, the second gear drives the second driving gear 15 to rotate, so that the two sliding seats 11 are driven to move oppositely through the matching of the first threaded column 13 and the first threaded cavity 12, the driving motor 7 drives the driving shaft 14 to move towards the driving seat 6 and be inserted into the driving seat 6, and after the driving column 8 is inserted into the driving seat 6 to a certain position, the second gear plate 18 is separated from the second driving gear 15, and when the graduated scale 16 is rolled, in the final stage, the second gear plate 18 enters the machine body 1 through the jack and is meshed with the second driving gear 15, so that the second driving gear 15 is driven to rotate reversely, so that the two sliding seats 11 move reversely, the driving column 8 is separated from the driving seat 6, the driving motor 7 is automatically powered off, and the rolling process is prevented, because the rolling of scale 16 is excessive for balancing weight 17 striking organism 1, causes the damage of device.

The driving assembly comprises a first driving gear 34, the first driving gear 34 is fixedly connected with the driving screw 33, a first toothed plate 24 is meshed on the first driving gear 34, a guide sliding groove 22 is formed in the supporting seat, a guide sliding block 23 is fixed on the lower side of the sliding seat 11, the guide sliding block 23 is slidably connected with the guide sliding groove 22, the lower end of the guide sliding block 23 is located below the supporting seat, and the lower end of the guide sliding block 23 is fixedly connected with the first toothed plate 24.

Structure more than adopting, because balancing weight 17 is at the beginning, need drive sliding seat 11 and carry out relative motion, so when device initial state, friction pad 36 does not press from both sides tight scale 16, thereby prevent that friction pad 36 from influencing balancing weight 17 to the resistance of scale 16 and driving sliding seat 11 and remove, at the beginning, balancing weight 17 drives sliding seat 11 and moves in opposite directions, thereby utilize sliding seat 11 to drive first pinion rack 24 and move, first pinion rack 24 drives first drive gear 34 and rotates, make drive screw 33 drive extrusion seat 35 relative motion, after sliding seat 11 moves appointed position, driving motor 7 switch-on begins work, friction pad 36 just in time presss from both sides tight scale 16 this moment, realize the restriction to balancing weight 17 falling speed.

A pull ring 43 is fixed on the outer side of the counter weight block 17, a fixing ring 40 is fixed on the lower side of the machine body 1, a support rod 41 is connected to the fixing ring 40 in a sliding manner, and a hook 42 matched with the pull ring 43 is fixed at the other end of the support rod 41.

Structure more than adopting, after the rolling of scale 16 is accomplished, can utilize the cooperation of couple 42 and pull ring 43, fix balancing weight 17 to prevent when placing, balancing weight 17 whereabouts drive arrangement work.

A plurality of arc-shaped bulges 44 are uniformly distributed on the front side and the rear side of the graduated scale 16, the distance between every two adjacent arc-shaped bulges 44 is smaller than the height of the friction pad 36, and the arc-shaped bulges 44 are made of rubber materials.

By adopting the structure, in the descending process of the graduated scale 16, the speed of the counterweight 17 can be reduced by utilizing the matching of the arc-shaped bulge 44 and the friction pad 36, the effect of limiting the descending speed of the counterweight 17 is further improved, and the graduated scale 16 can be prevented from continuously passing through the speed limiting mechanism 19 after the counterweight 17 is contacted with the bottom of the hole, so that the verticality of the graduated scale 16 below is ensured.

The lower end of the landing leg 2 is provided with a moving wheel 45, the upper end of the landing leg 2 is provided with a second threaded cavity 46, the inner lower end of the second threaded cavity 46 is fixed with a rotating motor 47, the output end of the rotating motor 47 is fixed with a first rotating plate 48, the upper side of the first rotating plate 48 is fixed with a second telescopic rod 49, the other end of the second telescopic rod 49 is fixed with a second threaded column 50, the second threaded column 50 is in threaded connection with the second threaded cavity 46, the other end of the second threaded column 50 is fixed with a plurality of third telescopic rods 51, the upper end of the third telescopic rods 51 is fixed with a second rotating plate 60, the outer side of the third telescopic rods 51 is sleeved with a third spring 52, the lower end of the machine body 1 is fixed with a connecting seat 58, the lower side of the connecting seat 58 is fixed with a T-shaped connecting column 59, the upper side of the second rotating plate 60 is provided with a T-shaped rotating groove 61, the T-shaped connecting column 59 is in rotating connection with the T-shaped rotating groove 61, the upper end of the supporting column 10 is provided with a plurality of limiting sliding grooves 54, spacing slide bar 53 sliding connection has in spacing spout 54, spacing slide bar 53's upper end and organism 1 fixed connection, landing leg 2's outside sliding connection has lift seat 56, and the lower extreme of lift seat 56 is fixed with a plurality of reference columns 57, and the upper end of lift seat 56 is fixed with link 55, the other end and connecting seat 58 fixed connection of link 55.

By adopting the structure, when the device is transferred, the device can be moved by using the moving wheel 45, at the moment, the third telescopic rod 51 and the third spring 52 extend out of the threaded cavity to support the machine body 1, so that the vibration generated when the device is moved is buffered, the device is protected, after the device is moved to a specified position, the rotating motor 47 is started to rotate the second threaded column 50, the second threaded column 50 moves downwards under the matching of the second threaded cavity 46, the second threaded column 50 drives the third spring 52 to enter the second threaded cavity 46, the connecting seat 58 is supported at the upper end of the supporting leg 2, in the process of moving downwards of the connecting seat 58, the lifting seat 56 is driven to move downwards by the supporting rod 41, so that the positioning column 57 is inserted into the ground, the structure is convenient to move, the stability of the device during operation can be improved, and the third spring 52 and the moving wheel 45 can not be pressed for a long time, thereby prolonging the service life of the third spring 52 and the moving wheel 45 and operating in reverse when movement is required.

The working principle of the invention is that when in work, the device is pushed by the moving wheel 45 to move, the third spring 52 extends out of the second threaded cavity 46, in the moving process, the third spring 52 can be used for damping the device, so that the device is protected in the moving process, after the device is moved to a specified position, the rotating motor 47 is started, so that the second threaded column 50 rotates, under the matching of the second threaded cavity 46, the second threaded column 50 moves downwards, the second threaded column 50 drives the third spring 52 to enter the second threaded cavity 46, the connecting seat 58 is used for supporting the upper end of the supporting leg 2, in the moving process of the connecting seat 58, the lifting seat 56 is driven by the supporting rod 41 to move downwards, so that the positioning column 57 is inserted into the ground, the arrangement of the structure is not only convenient to move, but also can improve the stability of the device in work, and can prevent the third spring 52 and the moving wheel 45 from being pressed for a long time, thereby prolonging the service life of the third spring 52 and the moving wheel 45, after the positioning is completed, the hook 42 is unfastened from fixing the counterweight block 17, the counterweight block 17 pulls the scale rope to move downwards under the action of gravity, meanwhile, the second toothed plate 18 moves downwards along with the counterweight block 17 to drive the second driving gear 15 to rotate, the second driving gear 15 drives the first threaded column 13 to rotate through the rotating shaft 4, thereby driving the sliding seat 11 to move towards each other, the sliding seat 11 drives the motor to move towards the driving seat 6 through the motor fixing plate 9, so that the power connection slot 25 of the driving shaft 14 is matched with the power connection plug 29, thereby starting the driving motor 7 to realize the paying-off operation, after the driving column 8 is inserted into the driving seat 6 for a certain distance, the second toothed plate 18 is separated from the second driving gear 15 and falls along with the counterweight block 17, and drives the first toothed plate 24 to move while the sliding seat 11 moves, the first toothed plate 24 drives the first driving gear 34 to rotate, so that the driving screw 33 drives the two extrusion seats 35 to move oppositely, when the second toothed plate 18 is separated from the second driving gear 15, the friction pad 36 just extrudes and rubs the graduated scale 16, so as to limit the speed of the graduated scale 16 in the descending process of the graduated scale 16, and because the graduated scale 16 is matched with the friction pad 36, the first spring 21 can be extruded, after the counterweight 17 contacts the bottom of the hole, the worker closes the driving motor 7, at this time, although the driving motor 7 can work for a short time after the counterweight 17 falls to the ground, under the action of the friction pad 36, only the graduated scale 16 above the friction pad 36 can be bent, the discharged graduated scale 16 can not be moved out of the machine body 1, and after the graduated scale 16 stops descending, the first spring 21 can rebound to a certain extent, so as to further tighten the graduated scale 16 below, thereby improving the detection precision, after the reading is finished, the driving motor 7 is started to rotate reversely, the graduated scale 16 is wound by the pulling force of the winding drum 5, when the counterweight 17 rises to a position close to the machine body 1, the second toothed plate 18 at the upper side of the counterweight 17 enters the interior of the machine body 1 again through the jack under the action of the arc-shaped guide cover 39 and is meshed with the second driving gear 15, so as to drive the second driving gear 15 to rotate, the sliding seat 11 is driven to move relatively under the action of the first threaded column 13, so that the driving column 8 is gradually moved out of the driving seat 6, the power-connecting plug 29 moves along with the power-connecting slot 25 under the action of the second spring 27 until the driving column 8 is completely separated from the driving seat 6, the driving motor 7 is automatically powered off, then the worker moves the counterweight 17 up for a distance again, so that the driving motor 7 is far away from the winding drum 5, and the counterweight 17 is fixed through the matching of the hook 42 and the pull ring 43, and when the sliding seat 11 moves relatively, the first toothed plate 24 drives the first driving gear 34 to rotate, so that the two extrusion seats 35 move reversely, the limit of the friction pad 36 on the scale 16 is removed, and the friction pad 36 is prevented from hindering the operation of driving the sliding seat 11 to move by initially descending the counterweight 17 in the next operation.

In summary, the speed limiting mechanism 19 can ensure the verticality of the scale 16 after the counterweight 17 contacts the ground, thereby ensuring the measurement accuracy.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims (10)

1. A hole depth measuring device for geotechnical geological investigation comprises a machine body (1) and supporting legs (2), wherein the supporting legs (2) are fixed at the lower end of the machine body (1), the hole depth measuring device is characterized in that a winding mechanism is arranged inside the machine body (1), a graduated scale (16) is connected onto the winding mechanism, the lower end of the graduated scale (16) extends out of the machine body (1), a balancing weight (17) is connected with the lower end of the graduated scale (16), a speed limiting mechanism (19) is arranged inside the machine body (1), the speed limiting mechanism (19) comprises a speed limiting box (31), a first telescopic rod (20) is fixed at the lower side of the speed limiting box (31), the lower end of the first telescopic rod (20) is connected with the machine body (1), a first spring (21) is sleeved outside the first telescopic rod (20), a speed limiting groove (30) which is communicated up and down is formed in the speed limiting box (31), a driving cavity (32) is formed in the speed limiting box (31), drive chamber (32) and speed limit groove (30) intercommunication, drive chamber (32) internal rotation is connected with drive screw (33), and drive screw (33) include left thread section and right thread section, equal threaded connection has drive plate (38) on left thread section and the right thread section, fixedly connected with extrusion seat (35) on drive plate (38), extrusion seat (35) and speed limit groove (30) sliding connection, and the opposite face of two extrusion seats (35) all is provided with friction pad (36), and speed limit case (31) are stretched out at the both ends of drive screw (33), and the both ends of drive screw (33) are connected with drive assembly.

2. The hole depth measuring device for geotechnical prospecting according to claim 1, characterized in that a guide slide rod (37) is fixed in the driving cavity (32), and the driving plate (38) is slidably connected with the guide slide rod (37).

3. The hole depth measuring device for geotechnical geological investigation of claim 1, characterized in that, winding mechanism includes mounting panel (3), the inside upper end at organism (1) is fixed to mounting panel (3) bilateral symmetry, and swivelling joint has pivot (4) on mounting panel (3), fixedly connected with winding reel (5) between two pivot (4), and the equal fixedly connected with drive seat (6) of the other end of two pivot (4), the inside of organism (1) be provided with drive seat (6) complex actuating mechanism.

4. The hole depth measuring device for geotechnical geological investigation of claim 3, characterized in that, the actuating mechanism includes two supporting seats, the supporting seat is fixed in the interior of organism (1), the sliding seat (11) is connected on the supporting seat upside in a sliding manner, the pillar (10) is fixed on the sliding seat (11) upside, the driving motor (7) fixing plate is fixed on the upper end of pillar (10), the driving motor (7) is fixed on the driving motor (7) fixing plate, the driving column (8) is fixedly connected with on the output shaft end of driving motor (7), the driving column (8) is a rectangular structure, the other end of driving column (8) is provided with the electricity connection slot (25), and the electricity connection plug (29) matched with electricity connection slot (25) is arranged on driving seat (6).

5. The hole depth measuring device for geotechnical geological investigation of claim 4, characterized in that, slide chamber (26) has been seted up to the inside of drive seat (6), the internal connection of slide chamber (26) has second spring (27), the other end fixedly connected with of second spring (27) is spacing slide plate (28), the opposite side and the electric plug (29) fixed connection of spacing slide plate (28), set up the opening that supplies electric plug (29) to stretch out on slide chamber (26), drive column (8) and opening cooperation setting.

6. The hole depth measuring device for geotechnical geological survey according to claim 5, characterized in that first threaded cavity (12) is opened to the inside of sliding seat (11), the inside threaded connection of first threaded cavity (12) has first screw thread post (13), is fixed with drive shaft (14) between two first screw thread posts (13), drive shaft (14) periphery is fixed with second drive gear (15), and the upside of balancing weight (17) is fixed with second pinion rack (18), and the upper end of second pinion rack (18) stretches into in organism (1) through the socket, and second pinion rack (18) and second drive gear (15) mesh, the lower extreme of socket is fixed with arc guide cover (39), and the opening of arc guide cover (39) is down.

7. The hole depth measuring device for geotechnical geological investigation of claim 4, characterized in that, the drive assembly includes first drive gear (34), first drive gear (34) and drive screw (33) fixed connection, first pinion rack (24) has been meshed on first drive gear (34), guide runner (22) has been seted up on the supporting seat, the downside of sliding seat (11) is fixed with direction slider (23), guide slider (23) and guide runner (22) sliding connection, the lower extreme of direction slider (23) is located the below of supporting seat, the lower extreme and the first pinion rack (24) fixed connection of direction slider (23).

8. The hole depth measuring device for geotechnical geological investigation of claim 1, characterized in that, the outside of balancing weight (17) is fixed with pull ring (43), and the downside of organism (1) is fixed with solid fixed ring (40), and solid fixed ring (40) goes up sliding connection and has bracing piece (41), and the other end of bracing piece (41) is fixed with couple (42) with pull ring (43) complex.

9. The hole depth measuring device for geotechnical geological investigation of claim 1, characterized in that, a plurality of arc-shaped protrusions (44) are evenly distributed on the front and back sides of the graduated scale (16), the distance between adjacent arc-shaped protrusions (44) is less than the height of the friction pad (36), and the arc-shaped protrusions (44) are made of rubber materials.

10. The hole depth measuring device for geotechnical geological investigation of claim 1, characterized in that the lower end of the supporting leg (2) is provided with a moving wheel (45), the upper end of the supporting leg (2) is provided with a second threaded cavity (46), the lower end of the interior of the second threaded cavity (46) is fixed with a rotating motor (47), the output end of the rotating motor (47) is fixed with a first rotating plate (48), the upper side of the first rotating plate (48) is fixed with a second telescopic rod (49), the other end of the second telescopic rod (49) is fixed with a second threaded column (50), the second threaded column (50) is in threaded connection with the second threaded cavity (46), the other end of the second threaded column (50) is fixed with a plurality of third telescopic rods (51), the upper end of the third telescopic rods (51) is fixed with a second rotating plate (60), and the outer side of the third telescopic rods (51) is sleeved with a third spring (52), the lower extreme of organism (1) is fixed with connecting seat (58), the downside of connecting seat (58) is fixed with T type spliced pole (59), and T type swivelling chute (61) have been seted up to the upside of second rotor plate (60), T type spliced pole (59) and T type swivelling chute (61) swivelling joint, and a plurality of spacing spout (54) have been seted up to the upper end of pillar (10), sliding connection has spacing slide bar (53) in spacing spout (54), the upper end and organism (1) fixed connection of spacing slide bar (53), the outside sliding connection of landing leg (2) has lift seat (56), the lower extreme of lift seat (56) is fixed with a plurality of reference columns (57), and the upper end of lift seat (56) is fixed with link (55), the other end and connecting seat (58) fixed connection of link (55).

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