Detection device for pile bottom karst cave

By introducing a gantry frame, a limiting mechanism, and a roller guide structure into the pile bottom karst cave detection device, the problem of the pile bottom karst cave detector shaking and colliding in the pile hole was solved, thus improving the service life and safety of the equipment.

CN224109657UActive Publication Date: 2026-04-10HUNAN PROVINCIAL COMM PLANNING SURVEY & DESIGN INST CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-18
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Existing pile bottom karst cave detectors are prone to collisions with the inside of the pile hole due to shaking when moving in the pile hole, which can damage the equipment and affect its service life.

Method used

A detection device for karst caves at the bottom of piles was designed, including a shell, a gantry frame, a height adjustment mechanism, a limiting mechanism, and a positioning mechanism. The device uses rollers to roll on the inner wall of the pile hole to prevent shaking and guide the device, thus preventing collisions.

Benefits of technology

This effectively prevents the pile bottom karst cave detector from shaking and colliding inside the pile hole, thus improving the service life and safety of the equipment.

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Abstract

The utility model is applicable to the technical field of pile bottom karst cave detection, and provides a detection device for a pile bottom karst cave, which comprises a pile bottom karst cave detector body, a shell is fixedly mounted on the pile bottom karst cave detector body, a transverse plate is arranged above the shell, and two sliding grooves are formed in the transverse plate; the two connecting plates are installed on the two sliding grooves in a sliding mode respectively, a plurality of clamping grooves are formed in the two connecting plates, and supporting legs are fixedly installed on the two connecting plates; the height adjusting mechanism is assembled on the transverse plate and is used for lifting the pile bottom karst cave detector body; the two positioning mechanisms are mounted on the transverse plate and are used for fixing the two connecting plates; the limiting mechanisms are arranged on the shell and used for preventing shaking. According to the detection device for the pile bottom karst cave, the problem that when an existing pile bottom karst cave detector moves in a pile hole, the existing pile bottom karst cave detector easily collides with the interior of the pile hole due to shaking is solved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to pile bottom karst cave detection technical field, specifically related to a kind of detection device for pile bottom karst cave. BACKGROUND

[0002] Pile bottom karst cave detector is a kind of equipment specially used for detecting pile foundation bottom karst cave. It uses elastic wave reflection principle, emits elastic wave (such as sound wave) to pile hole bottom, and receives the signal reflected by these waves when encountering karst cave, fracture, soft stratum and other structure, so as to determine the depth position and distribution of abnormal structure such as karst cave.

[0003] The existing pile bottom karst cave detector is usually moved into the pile hole by winch and other equipment during use. However, since the pile bottom karst cave detector lacks a limiting structure, it is prone to shaking during movement, increasing the risk of collision with the inside of the pile hole. Once collided, the detector itself is likely to be damaged, thereby affecting the service life.

[0004] In view of the above, there is an urgent need for a detection device for pile bottom karst cave to solve or at least partially solve the problems existing in the prior art. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of detection device for pile bottom karst cave, to solve the problem that the existing pile bottom karst cave detector is prone to collision with the inside of the pile hole due to shaking when moving in the pile hole as proposed in the above background art. The specific technical solution is as follows:

[0006] A kind of detection device for pile bottom karst cave, comprising: pile bottom karst cave detector body, shell is fixedly installed on pile bottom karst cave detector body;Gantry, height adjusting mechanism for lifting pile bottom karst cave detector body is assembled on gantry, the first end of height adjusting mechanism is connected with gantry, the second end of height adjusting mechanism is connected with shell;Limiting mechanism for anti-shaking is arranged on shell, limiting mechanism includes linear extension assembly and roller, the first end of linear extension assembly is fixedly connected at the outer periphery of shell, the second end of linear extension assembly is cantilevered outward, roller is rotatably arranged on the cantilevered end side of linear extension assembly;Limiting mechanism is arranged in multiple along the circumference of shell.

[0007] Further, the limiting mechanism further includes a U-shaped frame, the U-shaped frame is fixedly connected to the cantilevered end of the linear extension assembly, the roller is rotatably connected to the U-shaped frame, and the axis of the roller is horizontally arranged.

[0008] Further, the linear extension assembly is one of an electric telescopic rod, a hydraulic cylinder and a gas cylinder.

[0009] Further, the portal frame comprises a horizontal plate, connecting plates and legs, two sliding grooves are arranged on the horizontal plate, the two sliding grooves are arranged at two ends of the horizontal plate respectively, the sliding grooves are arranged along the length direction of the horizontal plate, two connecting plates are arranged, the two connecting plates are slidingly and positionally arranged in the two sliding grooves respectively, two legs are arranged, the two legs are arranged along the vertical direction, and the two ends of the two connecting plates away from the sliding grooves are fixedly connected to the side walls of the corresponding two legs respectively.

[0010] Further, the positioning mechanisms are arranged at two ends of the horizontal plate to position the connecting plates.

[0011] Further, the positioning mechanisms comprise a mounting shell fixedly mounted on the horizontal plate, an extension piece fixedly mounted on the inner wall of the top of the mounting shell, and a clamping block fixedly mounted on the output end of the extension piece, the side corresponding to the extension piece of the connecting plate is provided with a clamping groove, a plurality of clamping grooves are arranged along the length direction of the connecting plate, and the clamping block is clamped into one of the clamping grooves corresponding to the clamping block.

[0012] Further, the clamping blocks are all T-shaped, the small ends of the clamping blocks face downward, and the clamping blocks are made of metal.

[0013] Further, the height adjusting mechanism comprises a U-shaped plate fixedly mounted on the bottom of the horizontal plate, a rotating shaft rotatably connected to the U-shaped plate, the rotating shaft is horizontally arranged, a driving source arranged on one side of the U-shaped plate, the output shaft of the driving source is fixedly connected to one end of the rotating shaft, a winding wheel fixedly sleeved on the rotating shaft, and a steel wire rope wound on the winding wheel, the first end of the steel wire rope is wound on the winding wheel, and the second end of the steel wire rope is fixedly connected to the top of the shell.

[0014] Further, the height adjusting mechanism further comprises a reinforcing support seat fixedly connected to one side of the U-shaped plate, and the reinforcing support seat is fixedly connected to the driving source.

[0015] Further, the bottom of each of the two legs is fixedly mounted with a pad, and the bottom of each of the two pads is fixedly mounted with an antiskid pad.

[0016] The technical scheme of the utility model has the following beneficial effects:

[0017] The device is used, first, the gantry is erected at the pile hole needing to be measured, the pile bottom karst cave detector body is made downward, the pile bottom karst cave detector body is moved downward along the pile hole by adjusting the height adjusting mechanism, and the roller is rolled and abuts on the outer wall of the pile hole by adjusting the length of the linear extension assembly on the limiting mechanism, so that the height adjusting mechanism adjusts the height of the pile bottom karst cave detector body, the roller on the limiting mechanism rolls on the inner wall of the pile hole, plays a guiding role on the pile bottom karst cave detector, prevents the pile bottom karst cave detector from shaking in the pile hole, prevents the pile bottom karst cave detector from colliding with the inner wall of the pile hole, prevents the pile bottom karst cave detector from being damaged due to shaking and colliding when being placed in the pile hole for measurement, and the service life of the pile bottom karst cave detector is improved.

[0018] In addition to the purposes, features and advantages described above, the utility model has other purposes, features and advantages. Below, the utility model will be described in detail with reference to the drawings Figures 1-4 The utility model will be described in further detail. ACCOUT OF DRAWINGS

[0019] The drawings that form a part of the present application are used to provide further understanding of the utility model, the illustrative embodiment of the utility model and the explanation thereof are used to explain the utility model, and do not constitute undue limitation on the utility model. In the drawings:

[0020] Figure 1 It is the overall structure schematic view of the utility model one pile bottom karst cave detection device;

[0021] Figure 2 It is the overall structure schematic view of the utility model one pile bottom karst cave detection device; Figure 1 It is the enlarged view of A in the utility model;

[0022] Figure 3 It is the enlarged view of B in the utility model; Figure 1

[0023] Figure 4 It is the overall structure schematic view of the utility model one pile bottom karst cave detection device in extension piece and clamping block.

[0024] Wherein, 1, pile bottom karst cave detector body;2, shell;3, gantry;31, cross plate;311, sliding groove;32, connecting plate;321, clamping groove;33, support leg;4, height adjusting mechanism;41, U-shaped plate;42, pivot;43, drive source;44, winding wheel;45, steel wire rope;46, reinforced support seat;5, limiting mechanism;51, linear extension assembly;52, roller;53, U-shaped frame;6, positioning mechanism;61, installation shell;62, extension piece;63, clamping block;7, backing plate;8, non-slip pad. DETAILED DESCRIPTION

[0025] ​For the purpose of facilitating the understanding of the present application, the present application will be described more fully below and preferred embodiments of the present application will be given. However, the present application can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application.

[0027] Embodiment:

[0028] Referring to Figures 1-4 , the present embodiment provides a kind of pile bottom karst cave detection device, comprising: pile bottom karst cave detector body 1, shell 2 is fixedly installed on pile bottom karst cave detector body 1;Gantry 3, height adjusting mechanism 4 for lifting pile bottom karst cave detector body 1 is assembled on gantry 3, the first end of height adjusting mechanism 4 is connected with gantry 3, the second end of height adjusting mechanism 4 is connected with shell 2;Limiting mechanism 5 for preventing shaking is arranged on shell 2, limiting mechanism 5 includes linear extension component 51 and roller 52, the first end of linear extension component 51 is fixedly connected at the outer periphery of shell 2, the second end of linear extension component 51 is cantilevered outward, roller 52 is rotatably arranged at the cantilevered end side of linear extension component 51;Limiting mechanism 5 is circumferentially spaced apart multiple.

[0029] It can be known that, when the device is used, first, gantry 3 is erected at the pile hole needing to be measured, by making pile bottom karst cave detector body 1 downward, and by adjusting height adjusting mechanism 4, pile bottom karst cave detector body 1 moves downward along the pile hole, and by adjusting the length of linear extension component 51 on limiting mechanism 5, roller 52 rolls and abuts on the outer wall of the pile hole, so that when height adjusting mechanism 4 adjusts the height of pile bottom karst cave detector body 1, roller 52 on limiting mechanism 5 rolls on the inner wall of the pile hole, plays a guiding role to pile bottom karst cave detector, and prevents pile bottom karst cave detector from shaking in the pile hole, further prevents pile bottom karst cave detector from colliding with the inner wall of the pile hole, prevents pile bottom karst cave detector from being damaged due to shaking and colliding when being placed in the pile hole for measurement, and improves the service life of pile bottom karst cave detector.

[0030] As another preferred embodiment of the present application, limiting mechanism 5 further includes U-shaped frame 53, U-shaped frame 53 is fixedly connected on the cantilevered end of linear extension component 51, roller 52 is rotatably connected on U-shaped frame 53, and the axis of roller 52 is horizontally arranged.

[0031] It can be known that through the arrangement of the U-shaped frame 53, the roller 52 is arranged in the groove of the U-shaped frame 53, and both sides of the roller 52 are rotationally connected to the U-shaped frame 53, thereby improving the stability of the roller 52 rolling.

[0032] As another preferred embodiment of the present application, the linear telescopic assembly 51 is an electric telescopic rod, and the length of the linear telescopic assembly 51 is controlled by the extension or shortening of the electric telescopic rod, thereby conveniently supporting the roller 52 on the inner wall of the pile hole to adapt to different sizes of the pile hole. In some other embodiments of the present application, the linear telescopic assembly 51 can also be a hydraulic cylinder, an air cylinder, or other components or structures capable of achieving linear driving.

[0033] As another preferred embodiment of the present application, the portal frame 3 includes a horizontal plate 31, a connecting plate 32, and a support leg 33. The horizontal plate 31 is provided with two sliding grooves 311, and the two sliding grooves 311 are arranged at both ends of the horizontal plate 31 along the length direction of the horizontal plate 31. The connecting plate 32 is arranged in two, and the two connecting plates 32 are slidingly and positionally arranged in the two sliding grooves 311, respectively. The support leg 33 is arranged in two, and the two support legs 33 are arranged in a vertical direction. The two connecting plates 32 are fixedly connected to the side walls of the corresponding two support legs 33 away from the two ends of the sliding grooves 311, respectively.

[0034] It can be known that the portal frame 3 needs to be stably supported on both sides of the pile hole for different sizes of the pile hole, and therefore the width of the portal frame 3 needs to be adjusted. When the size of the pile hole is large, a wide support leg 33 spacing needs to be adopted to enable the support leg 33 to be supported on both sides of the pile hole. Through the arrangement of the sliding groove 311, the connecting plate 32 can slide and be positioned along the sliding groove 311, thereby achieving the adjustment of the spacing of the two support legs 33.

[0035] As another preferred embodiment of the present application, a positioning mechanism 6 is further included, and the positioning mechanism 6 is arranged in two and arranged at both ends of the horizontal plate 31 to position the connecting plate 32. Specifically, the positioning mechanism 6 includes a mounting shell 61 fixedly installed on the horizontal plate 31, an extension piece 62 fixedly installed on the top inner wall of the mounting shell 61, and a clamping block 63 fixedly installed on the output end of the extension piece 62. The connecting plate 32 is provided with a clamping groove 321 on the side corresponding to the extension piece 62, and the clamping groove 321 is arranged in multiple and arranged in a spaced manner along the length direction of the connecting plate 32. The clamping block 63 is clamped into one of the corresponding clamping grooves 321. Specifically, in the present embodiment, the extension piece 62 is an electric telescopic rod, and in some other embodiments of the present application, the extension piece 62 can also be a hydraulic cylinder or an air cylinder.

[0036] It can be known that the position of the connecting plate 32 is conveniently adjusted through the arrangement of the point mechanism, so as to conveniently adjust the distance between the two supporting legs 33; during the adjustment process, the retractable piece 62 is retracted, the clamping block 63 is pulled out of the clamping groove 321, so as to realize the unlocking of the connecting plate 32, adjust the position of the connecting plate 32 in the sliding groove 311, after the position of the connecting plate 32 is adjusted, the retractable piece 62 is extended, the clamping block 63 is clamped in the new clamping groove 321, so as to realize the repositioning of the connecting plate 32, and the position adjustment and positioning of the connecting plate 32 are facilitated.

[0037] As another preferred embodiment of the present application, the clamping block 63 is provided in a T shape, the corner of the T shape is provided in an arc shape, and the small end of the clamping block 63 faces downward, and the clamping block 63 is made of metal.

[0038] It can be known that the T-shaped clamping block 63 is conveniently inserted into the corresponding clamping groove 321, the probability of jamming of the clamping block 63 into the clamping groove 321 is reduced, the failure rate is reduced, and the wear resistance of the clamping block 63 is improved by using the metal material, so that the clamping block 63 has a longer service life.

[0039] As another preferred embodiment of the present application, the height adjusting mechanism 4 comprises: a U-shaped plate 41 fixedly installed at the bottom of the horizontal plate 31, a rotating shaft 42 rotatably connected to the U-shaped plate 41, the rotating shaft 42 being horizontally arranged; a driving source 43 arranged on one side of the U-shaped plate 41, an output shaft of the driving source 43 being fixedly connected to one end of the rotating shaft 42; further comprising a winding wheel 44 fixedly sleeved on the rotating shaft 42, and a steel wire rope 45 wound on the winding wheel 44, a first end of the steel wire rope 45 being wound on the winding wheel 44, and a second end of the steel wire rope 45 being fixedly connected to the top of the shell 2. Specifically, in this embodiment, the driving source 43 is an electric motor, and in some other embodiments, the driving source 43 can also be a hydraulic motor, a micro engine or other components or structures capable of generating power. Because the winding wheel 44 is fixedly connected to the rotating shaft 42, when the driving source 43 drives the rotating shaft 42 to rotate, the winding wheel 44 can be driven to rotate in the forward or reverse direction.

[0040] It can be known that the rotating shaft 42 is driven to rotate by the driving source 43, and then the winding wheel 44 is driven to rotate, so that the steel wire is unwound from the winding wheel 44 or wound on the winding wheel 44. Taking the clockwise rotation of the winding wheel 44 to wind the steel wire as an example, when the winding wheel 44 rotates clockwise, the steel wire is wound, the shell 2 and the pile bottom cave detector body 1 connected to the steel wire are pulled out of the pile hole, and when the winding wheel 44 rotates counterclockwise, the steel wire is unwound, and the pile bottom cave detector is lowered from the ground into the pile hole for detection.

[0041] As another preferred embodiment of the present application, the height adjusting mechanism 4 further comprises a reinforcing support base 46 fixedly connected to one side of the U-shaped plate 41, and the reinforcing support base 46 is fixedly connected with the driving source 43.

[0042] It can be known that, by arranging the reinforcing support base 46, the connection stability of the driving source 43 is improved, and the installation and dismounting of the driving source 43 are facilitated.

[0043] As another preferred embodiment of the present application, the bottom of each of the two supporting legs 33 is fixedly installed with a pad plate 7, and the bottom of each of the two pad plates 7 is fixedly installed with an anti-skid pad 8.

[0044] It can be known that, by arranging the pad plate 7, the supporting area is increased, so as to reduce the pressure and prevent the supporting leg 33 from sinking when supporting on a soft ground, and by arranging the anti-skid pad 8, the sliding during supporting is prevented, and the stability of the supporting is improved.

[0045] The two positioning mechanisms 6 can not only firmly fix the two connecting plates 32 in the two sliding grooves of the horizontal plate 31, but also release the fixation of the two connecting plates 32, so that the personnel can adjust the distance between the two supporting legs 33 according to the diameter of the pile hole, so that the device can be applied to various pile holes, the height adjusting mechanism 4 can be used to lift the pile bottom karst cave detector body 1, so that the pile bottom karst cave detector body 1 can enter the pile hole to perform the detection work, and the plurality of limiting mechanisms 5 can effectively prevent the pile bottom karst cave detector body 1 from colliding with the inside of the pile hole due to shaking during movement, protect the pile bottom karst cave detector body 1 from damage, and improve the safety of the device in use.

[0046] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A detection device for karst caves at the bottom of piles, characterized in that, include: The pile bottom karst cave detector body (1) has a housing (2) fixedly installed on the pile bottom karst cave detector body (1); Gantry (3), height adjustment mechanism (4) mounted on the gantry (3) for raising and lowering the body (1) of the pile bottom cave detector, the first end of the height adjustment mechanism (4) is connected to the gantry (3), and the second end of the height adjustment mechanism (4) is connected to the housing (2); A limiting mechanism (5) for preventing swaying is provided on the housing (2). The limiting mechanism (5) includes a linear telescopic component (51) and a roller (52). The first end of the linear telescopic component (51) is fixedly connected to the outer periphery of the housing (2). The second end of the linear telescopic component (51) is cantilevered outward. The roller (52) is rotatably arranged on one side of the cantilevered end of the linear telescopic component (51). The limiting mechanism (5) is arranged in multiple circumferentially along the housing (2).

2. The detection device for karst caves at the bottom of piles as described in claim 1, characterized in that, The limiting mechanism (5) also includes a U-shaped frame (53), which is fixedly connected to the cantilever end of the linear telescopic assembly (51). The roller (52) is rotatably connected to the U-shaped frame (53), and the axis of the roller (52) is arranged horizontally.

3. The detection device for karst caves at the bottom of piles as described in claim 2, characterized in that, The linear telescopic assembly (51) is one of the following: an electric telescopic rod, a hydraulic cylinder, or a pneumatic cylinder.

4. The detection device for karst caves at the bottom of piles as described in claim 1, characterized in that, The gantry frame (3) includes a horizontal plate (31), a connecting plate (32), and support legs (33). The horizontal plate (31) is provided with two sliding grooves (311), which are respectively arranged at both ends of the horizontal plate (31) and are arranged along the length of the horizontal plate (31). Two connecting plates (32) are arranged, which are respectively slidably and positioned in the two sliding grooves (311). Two support legs (33) are arranged, which are arranged in a vertical direction. The two ends of the two connecting plates (32) away from the sliding grooves (311) are respectively fixedly connected to the side walls of the corresponding two support legs (33).

5. The detection device for karst caves at the bottom of piles as described in claim 4, characterized in that, It also includes a positioning mechanism (6), two of which are arranged at both ends of the horizontal plate (31) to position the connecting plate (32).

6. The detection device for karst caves at the bottom of piles as described in claim 5, characterized in that, The positioning mechanism (6) includes: a mounting shell (61) fixedly installed on the horizontal plate (31); A telescopic component (62) is fixedly installed on the inner top wall of the mounting housing (61), and a locking block (63) is fixedly installed on the output end of the telescopic component (62). A locking groove (321) is provided on the side of the connecting plate (32) corresponding to the telescopic component (62). Multiple locking grooves (321) are arranged at intervals along the length direction of the connecting plate (32). The locking block (63) is inserted into one of the corresponding locking grooves (321).

7. The detection device for karst caves at the bottom of piles as described in claim 6, characterized in that, The card blocks (63) are all T-shaped, with the small end of the card blocks (63) facing down, and the card blocks (63) are made of metal.

8. The detection device for karst caves at the bottom of piles as described in claim 4, characterized in that, The height adjustment mechanism (4) includes: a U-shaped plate (41) fixedly installed at the bottom of the horizontal plate (31), and a rotating shaft (42) rotatably connected to the U-shaped plate (41), wherein the rotating shaft (42) is arranged horizontally; A drive source (43) is provided on one side of the U-shaped plate (41), and the output shaft of the drive source (43) is fixedly connected to one end of the rotating shaft (42); It also includes a winding wheel (44) fixedly sleeved on the rotating shaft (42), and a steel wire rope (45) wound on the winding wheel (44), with the first end of the steel wire rope (45) wound on the winding wheel (44) and the second end of the steel wire rope (45) fixedly connected to the top of the housing (2).

9. The detection device for karst caves at the bottom of piles as described in claim 8, characterized in that, The height adjustment mechanism (4) also includes a reinforcing support (46), which is fixedly connected to one side of the U-shaped plate (41) and is fixedly connected to the drive source (43).

10. The detection device for karst caves at the bottom of piles as described in claim 4, characterized in that, A pad (7) is fixedly installed on the bottom of each of the two support legs (33), and an anti-slip pad (8) is fixedly installed on the bottom of each of the two pads.