Rock-soil geological exploration depth measuring device

Abstract

The invention discloses a rock-soil geological exploration depth measuring device, and relates to the technical field of depth measurement, the rock-soil geological exploration depth measuring device comprises a fixed bottom plate, the upper surface of the fixed bottom plate is fixedly provided with a frame body structure, and the interior of the frame body structure is connected with a rotating sleeve wheel, a positive and negative linkage mechanism, an extrusion mechanism, a transmission double-wheel set and a pay-off wheel; one end of the positive and negative linkage mechanism is fixedly connected with a sponge cleaning block, and when the steel ruler cable is wound forwards and backwards, the sponge cleaning block and the scale surface of the steel ruler cable form self-adaptive contact, and surface dirt cleaning and transmission guiding are completed synchronously; when the forward and reverse linkage mechanism drives the steel ruler cable to perform forward and reverse winding, constant pre-tightening force is applied to the non-scale surface of the steel ruler cable, and instantaneous impact force generated by geological vibration is absorbed through elastic deformation. The device has the effects that scale protection and cleaning are integrated, the stability of a transmission path is improved, vibration impact is buffered, and efficient collaborative operation is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of depth measurement, in particular to a depth measurement device for rock and soil geological exploration. Background Art

[0002] The purpose of geotechnical engineering investigation is to use testing means and methods to investigate, study, analyze and judge the construction site. In the field of geotechnical exploration, depth measurement is a vital link. It is not only related to the accurate assessment of geological structure, but also directly affects the safety and economy of subsequent engineering design and construction. Common depth measurement devices mainly include well depth gauges, etc. Well depth gauges generally include probes, steel ruler cables, winding reels, receiving systems, etc. The steel ruler cable is a flexible metal belt with scale markings. When measuring, the steel ruler cable is wound around the outside of the winding reel, and then the steel ruler cable is used to lower the probe into the well. The sensor and receiving system on the probe send information to help staff determine whether the probe has reached the water surface and the bottom of the well. Then, the well depth can be measured by the lowering length of the steel ruler cable.

[0003] However, common depth measurement devices all use manual rotation of the winding reel to reel in measurements. Not only does its operation rely on the stability of manual retraction, but the transmission design of the single wheel set is also prone to jamming and entanglement in complex geological environments. Especially when surveying in mountainous areas or soft soil layers, the deviation or jamming of the steel ruler cable will directly lead to distortion of the depth data. When the ground vibrates or the device is unstable during field surveys, the measuring components will also resonate. The traditional rigid connection structure cannot buffer the instantaneous impact force, causing the steel ruler cable to shake and the counterweight block to swing, affecting the stability of the depth measurement. Summary of the Invention

[0004] The purpose of the present invention is to provide a solution to the technical problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a rock and soil geological exploration depth measuring device, comprising a fixed base plate, a frame structure fixedly mounted on the upper surface of the fixed base plate, a rotating sleeve, a forward and reverse linkage mechanism, an extrusion mechanism, a transmission double wheel group, and a pay-off wheel connected to the interior of the frame structure, a steel ruler cable wound around the outer wheel surface of the rotating sleeve, and a counterweight fixedly connected to one end of the steel ruler cable; The steel ruler cable is driven between the rotating sleeve, the squeezing mechanism, the transmission double wheel set and the pay-off wheel to form a transmission path for depth measurement; The frame structure is rigidly fixed to the frame structure by the fixed bottom plate, so that the rotating sleeve, the forward and reverse linkage mechanism, the extrusion mechanism, the transmission double wheel set and the pay-off wheel form a stable mechanical arrangement; A forward and reverse linkage mechanism, one end of which is fixedly connected to a sponge cleaning block, so that the steel ruler cable rotates in forward and reverse directions, and when the steel ruler cable is reeled forward and reverse, the sponge cleaning block forms an adaptive conflict with the scale surface of the steel ruler cable, thereby simultaneously completing surface dirt cleaning and transmission guidance; The squeezing mechanism is located below the sponge cleaning block, so that when the forward and reverse linkage mechanism drives the steel ruler cable to rewind forward and reverse, a constant pre-tightening force is applied to the non-scale surface of the steel ruler cable. Then the sponge cleaning block contacts and fits the scale surface, and absorbs the instantaneous impact force generated by geological vibration through elastic deformation.

[0006] Optionally, the frame structure includes: A fixed bracket, one side of which is obliquely connected to an oblique bracket, a motor frame is fixedly mounted on the upper surface of the fixed base plate away from the fixed bracket, and the fixed bracket and the motor frame are transversely coaxially arranged; The other side surface of the fixed base plate away from the motor frame is fixedly installed with a first bracket and a second bracket distributed in a transverse axis, and the upper surface of the fixed base plate close to the wire-releasing wheel is fixedly installed with a third bracket, and the third bracket and the second bracket are distributed in a longitudinal coaxial direction.

[0007] Optionally, the forward and reverse linkage mechanism includes: A forward and reverse motor, wherein the output end of the forward and reverse motor is fixedly connected to a driving gear, one side of the driving gear is meshed with a driven gear, one side of the driven gear is fixedly connected to a driven roller on its axis, and one end of the driven roller is fixedly connected to a winding roller; The sponge cleaning block is fixedly connected to the arc-shaped surface of one end of the orbiting roller.

[0008] Optionally, the extrusion mechanism includes: An arc pressure plate, wherein both side surfaces of the arc pressure plate are integrally connected with extension plates, the upper surfaces of the extension plates are fixedly connected with a conveying roller group, and the other two side surfaces of the arc pressure plate away from the extension plates are fixedly connected with baffles; A spring group is fixedly connected between the lower surface of the arc pressure plate and the upper surface of the second bracket, and side slides are fixedly connected to the two side surfaces of the second bracket. A groove is provided on the central lower surface of the baffle, and a spring is welded between the upper surface of the side slide and the top wall of the groove, and the side slide is limited to slide inside the groove.

[0009] Optionally, the forward and reverse motors are fixedly mounted inside the motor frame, the rotating sleeve is mounted on the fixed bracket, a transmission roller is fixedly connected to a surface of the driving gear on a side away from the forward and reverse motors, the rotating sleeve is fixedly sleeved on an outer surface of the transmission roller, and the other end of the transmission roller is limited and rotated inside the fixed bracket; The driven gear is rotatably mounted on the first bracket via a limiting sleeve.

[0010] Optionally, the transmission double wheel set is fixedly mounted on the third bracket, and the pay-off wheel is fixedly mounted on the oblique bracket.

[0011] Optionally, a rotation limiting groove for the driven gear to rotate is provided on an upper surface of one side of the fixed base plate.

[0012] Optionally, the second bracket and the arc pressure plate are both arranged obliquely in the same direction and adapted to the rotation angle of the sponge cleaning block.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention uses a positive and negative linkage mechanism to drive the sponge cleaning block to adaptively conflict with the scale surface of the steel ruler cable, which helps to synchronously remove surface dirt during the winding process and avoid manual cleaning steps. At the same time, the extrusion mechanism applies a constant pre-tightening force to the non-scale surface to ensure the fit of the sponge cleaning block. At the same time, it buffers the contact pressure through elastic deformation, prevents scale wear, and improves data reading accuracy.

[0014] 2. The present invention comprises a transmission double wheel set and a pay-off wheel that work together to form a transmission path, and is designed with the frame structure arranged coaxially in the horizontal and longitudinal directions, so that the steel ruler cable maintains a linear trajectory during the retraction and release process, avoiding jamming or deviation. The longitudinal coaxial setting of the oblique bracket and the third bracket further optimizes the transmission stability under complex terrain.

[0015] 3. The present invention forms a double elastic buffer system through the spring group in the extrusion mechanism and the side slide spring, which can absorb the instantaneous impact force generated by geological vibration and reduce the shaking of the steel ruler cable. In addition, the rigid fixation of the fixed base plate and the frame structure forms a stable mechanical arrangement, reducing the measurement error caused by unstable device installation.

[0016] 4. The forward and reverse motors of the present invention synchronously drive the rotating sleeve and the winding roller through the gear set to realize the mechanical linkage between the steel ruler cable winding and the cleaning action. No additional power source is required. The sponge cleaning block rotates with the winding roller to form an arc-shaped cleaning trajectory, which adapts to the winding angle of the steel ruler cable, thereby improving the cleaning efficiency and transmission guide accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of the overall structure of the present invention; Figure 2 A side view of the overall structure of the present invention; Figure 3 For the present invention Figure 2 A magnified schematic diagram of the structure at center A; Figure 4 It is a front cross-sectional view of the structure of the present invention; Figure 5 For the present invention Figure 4 A magnified schematic diagram of the structure at A1 in the middle; Figure 6 It is an enlarged schematic diagram of the extrusion mechanism in the structure of the present invention.

[0018] In the figure: 1-fixed base plate, 2-fixed bracket, 3-oblique bracket, 4-motor frame, 5-first bracket, 6-second bracket, 7-third bracket, 8-rotating sleeve, 9-forward and reverse motor, 10-driving gear, 11-transmission roller, 12-steel ruler cable, 13-counterweight, 14-driven gear, 15-driven roller, 16-winding roller, 17-sponge cleaning block, 18-arc pressure plate, 19-extension plate, 20-transmission roller group, 21-spring group, 22-baffle, 23-groove, 24-side slide plate, 25-spring, 26-transmission double wheel group, 27-pay-off wheel, 28-rotation limit slot. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] For example 1, please refer to Figures 1 to 6 The present invention provides a rock and soil geological exploration depth measuring device, comprising a fixed base plate 1, a frame structure fixedly mounted on the upper surface of the fixed base plate 1, the frame structure is internally connected to a rotating sleeve 8, a forward and reverse linkage mechanism, an extrusion mechanism, a transmission double wheel group 26 and a pay-off wheel 27, the outer wheel surface of the rotating sleeve 8 is wound with a steel ruler cable 12, and one end of the steel ruler cable 12 is fixedly connected to a counterweight block 13; The steel ruler cable 12 is transmitted between the rotating sleeve 8, the extrusion mechanism, the transmission double wheel group 26 and the pay-off wheel 27, forming a transmission path for depth measurement; The frame structure is rigidly fixed to the base plate 1 and the frame structure, and the rotating sleeve 8, the forward and reverse linkage mechanism, the extrusion mechanism, the transmission double wheel set 26 and the pay-off wheel 27 form a stable mechanical arrangement; A forward and reverse linkage mechanism, one end of which is fixedly connected to a sponge cleaning block 17, so that the steel ruler cable 12 rotates in the forward and reverse directions, and when the steel ruler cable 12 is reeled in the forward and reverse directions, the sponge cleaning block 17 forms an adaptive conflict with the scale surface of the steel ruler cable 12; The squeezing mechanism is located below the sponge cleaning block 17. When the forward and reverse linkage mechanism drives the steel ruler cable 12 to rewind forward and reverse, a constant preload force is applied to the non-scale surface of the steel ruler cable 12, and then the sponge cleaning block 17 contacts and fits the scale surface.

[0021] More specifically, in this embodiment, the overall device operation process is as follows: Device installation and fixation: Place the fixed base plate 1 horizontally on the ground at the monitoring point of the geotechnical survey, and fix it with expansion bolts or other counterweights to ensure a rigid connection between the frame structure and the fixed base plate 1, forming a stable mechanical arrangement to prevent the device from being displaced due to vibration at the geotechnical construction site; Steel ruler cable deployment: The forward and reverse linkage mechanism drives the rotating sleeve wheel 8 to release the steel ruler cable 12. Under the action of gravity, the counterweight block 13 drives the steel ruler cable 12 through the extrusion mechanism, the transmission double wheel group 26 and the pay-off wheel 27 in sequence, forming a depth measurement transmission path for geotechnical exploration. The counterweight block 13 and the steel ruler cable 12 enter the geotechnical borehole for depth measurement. During this measurement process, the counterweight block 13 sinks rapidly to the target position of geotechnical exploration. The transmission double wheel group 26 and the pay-off wheel 27 cooperate to limit the deviation of the steel ruler cable 12 to ensure linear transmission of depth data. Rewinding and cleaning linkage: After the depth measurement is completed, the forward and reverse linkage mechanism is started again to drive the steel ruler cable 12 to rewind and rotate. The sponge cleaning block 17 adaptively conflicts with the scale surface, simultaneously removing attached environmental pollutants such as mud, sand, and algae. The squeezing mechanism applies a constant pre-tightening force to the non-scale surface to ensure that the cleaning block fits tightly. At the same time, the elastic deformation absorbs the instantaneous force generated by water flow impact or equipment vibration to avoid scale wear; In addition, it is worth mentioning that when the forward and reverse linkage mechanism drives the rotating sleeve 8 to release the steel ruler cable 12 for depth measurement, the sponge cleaning block 17 still adaptively conflicts with the scale surface and pre-cleans the scale surface of the steel ruler cable 12. At the same time, the extrusion mechanism also applies a constant pre-tightening force to the non-scale surface to provide auxiliary power for the release transmission of the steel ruler cable 12.

[0022] At this point, the device forms a stable mechanical support system of the rotating sleeve 8, the transmission double wheel group 26, and the pay-off wheel 27 through the rigid fixation and coaxial arrangement of the frame structure, providing a constant reference for depth measurement, and the rotating sleeve 8 → extrusion mechanism → transmission double wheel group 26 → pay-off wheel 27 cooperates with the angle optimization of the oblique bracket to ensure that the steel ruler cable always maintains a linear trajectory during the retraction and release process, and the positive and negative linkage mechanism drives the sponge cleaning block 17 to form a "multi-frequency light pressure" cleaning trajectory, which simultaneously realizes the retraction of the steel ruler cable 12 and the removal of dirt on the scale surface, eliminating the manual cleaning step, and the constant preload control of the extrusion mechanism ensures that the sponge cleaning block 17 and the scale surface are adaptively fitted, while buffering the contact pressure through elastic deformation to prevent scale wear. In addition, the double elastic buffer system solves the measurement distortion problem caused by the resonance of the traditional rigid structure, and the mechanical linkage design driven by the positive and negative motors simultaneously realizes the retraction, cleaning, and guiding actions of the steel ruler cable 12 without the need for additional power source or manual intervention.

[0023] Furthermore, the frame structure includes: A fixed bracket 2, one side of the fixed bracket 2 is obliquely connected to an oblique bracket 3, a motor frame 4 is fixedly mounted on the upper surface of the fixed base plate 1 away from the fixed bracket 2, and the fixed bracket 2 and the motor frame 4 are transversely coaxially arranged; The other side surface of the fixed base plate 1 away from the motor frame 4 is fixedly installed with a first bracket 5 and a second bracket 6 distributed in a horizontal axis, and the upper surface of the fixed base plate 1 close to the pay-off wheel 27 is fixedly installed with a third bracket 7, and the third bracket 7 and the second bracket 6 are distributed in a longitudinal coaxial direction.

[0024] As for the frame structure, the fixed bracket 2 and the motor frame 4 are fixed transversely coaxially to the fixed base plate 1 to ensure that the transmission roller 11 of the forward and reverse linkage mechanism is aligned with the axis of the rotating sleeve 8 to reduce the transmission eccentricity error. The fixed bracket 2 and the motor frame 4 are positioned through the reference hole during processing to ensure that the coaxiality error of the transmission roller 11 and the output shaft of the forward and reverse motor 9 is reduced to avoid fluctuations in the winding tension of the steel ruler cable 12 caused by eccentric rotation.

[0025] A first bracket 5 and a second bracket 6 are installed on the other side of the fixed base plate 1, distributed along the transverse axis, to provide rigid support for the forward and reverse linkage mechanism and the extrusion mechanism; The third bracket 7 is longitudinally coaxially arranged with the second bracket 6 to ensure that the transmission double wheel set 26 is highly matched with the conveying roller set 20 of the extrusion mechanism, so that the steel ruler cable 12 maintains vertical transmission under complex terrain.

[0026] The positive and negative linkage mechanism includes: A forward and reverse motor 9, the output end of which is fixedly connected to a driving gear 10, one side of which is meshed with a driven gear 14, a driven roller 15 is fixedly connected to the axial surface of one side of the driven gear 14, and one end of the driven roller 15 is fixedly connected to a winding roller 16; The forward and reverse motor 9 is fixedly installed inside the motor frame 4, the rotating sleeve 8 is installed on the fixed bracket 2, and the driving gear 10 is fixedly connected to the transmission roller 11 on the side away from the forward and reverse motor 9. The rotating sleeve 8 is fixedly sleeved on the outer surface of the transmission roller 11, and the other end of the transmission roller 11 is limited and rotated inside the fixed bracket 2; The driven gear 14 is rotatably mounted on the first bracket 5 via a limiting sleeve.

[0027] The sponge cleaning block 17 is fixedly connected to the arc-shaped surface of one end of the winding roller 16 .

[0028] For the forward and reverse linkage mechanism, the forward and reverse motor 9 is fixed in the motor frame 4, and the output end drives the driving gear 10 to rotate, which drives the driven gear 14 to rotate through the engagement of the teeth. The driven gear 14 drives the orbiting roller 16 to rotate in a circle through the driven roller 15, thereby realizing the mechanical transmission of power from the motor to the cleaning component, without the need for an additional drive source.

[0029] Synchronous winding and cleaning: the driving gear 10 drives the transmission roller 11 to rotate, so that the rotating sleeve 8 reels the steel ruler cable 12, and the orbiting roller 16 rotates synchronously. The sponge cleaning block 17 on its arc surface follows the rotation trajectory to fit the scale surface of the steel ruler cable 12. After the measurement of the rock and soil geological environment, the surface water stains and silt are quickly removed to ensure clear readings. The driven gear 14 rotates stably on the first bracket 5 through the limit sleeve to avoid transmission lag caused by gear meshing gap and improve winding accuracy. In addition, when the forward and reverse motor 9 drives the driving gear 10 to rotate 1 circle, the driven gear 14 drives the orbiting roller 16 to rotate 2 circles, so that the sponge cleaning block 17 forms a "multi-frequency light pressure" cleaning mode for the steel ruler cable 12. Compared with constant speed transmission, the cleaning efficiency is greatly improved, and at the same time, the scale wear caused by excessive single pressure is avoided.

[0030] The extrusion mechanism includes: The arc pressure plate 18 has extension plates 19 integrally connected to both sides of the arc pressure plate 18. The upper surfaces of the extension plates 19 are fixedly connected to the conveying roller group 20. The other two sides of the arc pressure plate 18 away from the extension plates 19 are fixedly connected to the baffles 22. A spring group 21 is fixedly connected between the lower surface of the arc pressure plate 18 and the upper surface of the second bracket 6, and side slides 24 are fixedly connected to the two side surfaces of the second bracket 6. A groove 23 is provided on the central lower surface of the baffle 22, and a spring 25 is welded between the upper surface of the side slide 24 and the top wall of the groove 23, and the side slide 24 is limited to slide inside the groove 23.

[0031] For the extrusion mechanism, the arc pressure plate 18 is elastically connected to the second bracket 6 through the spring group 21. In the natural state, the spring group 21 stretches, so that the conveying roller group 20 on the arc pressure plate 18 contacts the non-scale surface of the steel ruler cable 12, applying a constant preload force to ensure that the sponge cleaning block 17 effectively fits the scale surface.

[0032] Vibration buffering and absorption: When vibration occurs at the survey site of geotechnical exploration, the steel ruler cable 12 drives the arc pressure plate 18 to move up and down, the side slide plate 24 slides in the groove 23, and the spring 25 compresses or stretches to absorb the instantaneous impact force; The baffle 22 limits the lateral swing of the arc pressure plate 18 and cooperates with the spring group 21 to form a double buffer, thereby reducing the vibration amplitude of the steel ruler cable 12 and improving the stability of depth measurement.

[0033] Example 2, based on the above example: Furthermore, a rotation limiting groove 28 for the driven gear 14 to rotate is formed on the upper surface of one side of the fixed base plate 1 .

[0034] More specifically, in this embodiment, the bottom of the driven gear 14 is embedded in the rotation limit groove 28 of the fixed base plate 1. During the forward and reverse rotation, the rotation limit groove 28 limits the radial jump of the driven gear 14 through side wall contact, ensuring that the tooth meshing gap between the driving gear 10 and the driven gear 14 is stable, and avoiding mud and rocks entering the gear meshing surface and causing jamming in the measurement environment of rock and soil geological exploration.

[0035] In addition, the second bracket 6 and the arc pressure plate 18 are both arranged in the same oblique direction and adapted to the rotation angle of the sponge cleaning block 17 .

[0036] Therefore, the second bracket 6 and the arc pressure plate 18 are both arranged obliquely, tangent to the arc-shaped rotation trajectory formed by the orbiting roller 16 driving the sponge cleaning block 17, ensuring that the cleaning block maintains line contact with the scale surface of the steel ruler cable 12 during the entire winding process, thereby improving the dirt removal efficiency in the water conservancy environment; At the same time, the oblique design enables the pre-tightening force of the extrusion mechanism to be evenly distributed along the axial direction of the steel ruler cable 12, thereby avoiding deformation of the scale due to excessive local pressure.

[0037] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A rock and soil geological exploration depth measuring device, comprising a fixed base plate (1), characterized in that: A frame structure is fixedly mounted on the upper surface of the fixed base plate (1), and a rotating sleeve (8), a transmission double wheel group (26), an extrusion mechanism, and a pay-off wheel (27) are connected to the interior of the frame structure. A steel ruler cable (12) is wound around the outer wheel surface of the rotating sleeve (8), and one end of the steel ruler cable (12) is fixedly connected to a counterweight (13); The steel ruler cable (12) is transmitted between the rotating sleeve (8), the extrusion mechanism, the transmission double wheel group (26) and the pay-off wheel (27), forming a transmission path for depth measurement; The frame structure is rigidly fixed to the frame structure through the fixed base plate (1), so that the rotating sleeve wheel (8), the transmission double wheel group (26) and the pay-off wheel (27) form a stable mechanical arrangement.

2. The rock and soil geological exploration depth measuring device according to claim 1, characterized in that: The frame structure includes: A fixed bracket (2), one side of the fixed bracket (2) being obliquely connected to an oblique bracket (3), a motor frame (4) being fixedly mounted on an upper surface of the fixed base plate (1) away from the fixed bracket (2), and the fixed bracket (2) and the motor frame (4) being transversely coaxially arranged; A first bracket (5) and a second bracket (6) are fixedly mounted on the other side surface of the fixed base plate (1) away from the motor frame (4) and distributed in a transverse axis. A third bracket (7) is fixedly mounted on the upper surface of the side of the fixed base plate (1) close to the pay-off wheel (27), and the third bracket (7) and the second bracket (6) are distributed in a longitudinal coaxial direction.

3. The rock and soil geological exploration depth measuring device according to claim 2, characterized in that: The frame structure is further internally connected to a forward and reverse linkage mechanism, one end of which is fixedly connected to a sponge cleaning block (17) so as to enable the steel ruler cable (12) to rotate in forward and reverse directions, and when the steel ruler cable (12) is reeled in forward and reverse directions, the sponge cleaning block (17) forms an adaptive conflict with the scale surface of the steel ruler cable (12), thereby simultaneously completing surface dirt cleaning and transmission guidance; The forward and reverse linkage mechanism comprises: A forward and reverse motor (9), wherein the output end of the forward and reverse motor (9) is fixedly connected to a driving gear (10), one side of the driving gear (10) is meshedly connected to a driven gear (14), one side of the axial surface of the driven gear (14) is fixedly connected to a driven roller (15), and one end of the driven roller (15) is fixedly connected to a winding roller (16); The sponge cleaning block (17) is fixedly connected to the arc-shaped surface at one end of the winding roller (16).

4. The rock and soil geological exploration depth measuring device according to claim 3, characterized in that: The frame structure is internally connected to a squeezing mechanism, which is located below the sponge cleaning block (17), so that when the forward and reverse linkage mechanism drives the steel ruler cable (12) to rewind forward and reverse, a constant preload force is applied to the non-scale surface of the steel ruler cable (12), and then the sponge cleaning block (17) contacts and fits the scale surface, and also absorbs the instantaneous impact force generated by geological vibration through elastic deformation; The extrusion mechanism comprises: An arc pressure plate (18), wherein both side surfaces of the arc pressure plate (18) are integrally connected to extension plates (19), the upper surfaces of the extension plates (19) are fixedly connected to a conveying roller group (20), and the other two side surfaces of the arc pressure plate (18) away from the extension plates (19) are fixedly connected to baffles (22); A spring group (21) is fixedly connected between the lower surface of the arc pressure plate (18) and the upper surface of the second bracket (6), and side slides (24) are fixedly connected to both side surfaces of the second bracket (6). A groove (23) is provided on the central lower surface of the baffle (22), and a spring (25) is welded between the upper surface of the side slide (24) and the top wall of the groove (23), and the side slide (24) is limitedly slidable inside the groove (23).

5. The rock and soil geological exploration depth measuring device according to claim 3, characterized in that: The forward and reverse motor (9) is fixedly mounted inside the motor frame (4), the rotating sleeve (8) is mounted on the fixed bracket (2), a driving gear (10) is fixedly connected to a transmission roller (11) on a side surface away from the forward and reverse motor (9), the rotating sleeve (8) is fixedly sleeved on the outer surface of the transmission roller (11), and the other end of the transmission roller (11) is limitedly rotated inside the fixed bracket (2); The driven gear (14) is rotatably mounted on the first bracket (5) via a limiting sleeve.

6. The rock and soil geological exploration depth measuring device according to claim 2, characterized in that: The transmission double wheel set (26) is fixedly mounted on the third bracket (7), and the pay-off wheel (27) is fixedly mounted on the oblique bracket (3).

7. The rock and soil geological exploration depth measuring device according to claim 3, characterized in that: A rotation limiting groove (28) for the driven gear (14) to rotate is provided on an upper surface of one side of the fixed base plate (1).

8. The rock and soil geological exploration depth measuring device according to claim 4, characterized in that: The second bracket (6) and the arc pressure plate (18) are both arranged obliquely in the same direction and are adapted to the rotation angle of the sponge cleaning block (17).

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