Pile hole diameter detection device
By designing a modular counterweight ring and a pointed cone head structure, the problem of the instrument probe's center of gravity shifting in the pile hole was solved, enabling rapid cleaning and replacement of the counterweight, ensuring the vertical position of the instrument probe during pile hole inspection, and improving inspection accuracy and efficiency.
Patent Information
- Application Number
- CN202520743116.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-04-18
AI Technical Summary
During the pile hole diameter detection process, the instrument probe's center of gravity shifts due to the adhesion of the counterweight to the mud and water inside the pile hole, making it difficult to maintain a vertical position and affecting the detection accuracy.
A pile hole diameter detection device was designed, which adopts a modular counterweight ring and pointed cone head structure. Through the cooperation of the insertion rod and the rubber sleeve, the counterweight can be quickly separated and cleaned, ensuring that the instrument probe remains vertical during the sinking process, and facilitating the replacement of clean counterweight to prevent the center of gravity shift caused by residue.
It enables the instrument probe to sink and remain vertically upright in complex terrain, improving the accuracy and efficiency of aperture detection and avoiding the problem of center of gravity shift caused by residue.
Smart Images
Figure CN223954886U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of building supervision tools, and particularly relates to a pile hole diameter detection device. BACKGROUND
[0002] The hole diameter detection should be carried out after the pile hole is formed and before the reinforcement cage is lowered. This is to ensure that the hole diameter of the pile hole meets the design requirements before the reinforcement cage is installed, thereby avoiding problems in the subsequent construction process. The hole diameter detection is generally carried out by aligning the instrument probe with the center of the pile hole and continuously transmitting and receiving acoustic signals from the hole mouth to the hole bottom or from the hole bottom to the hole mouth.
[0003] Since the pile hole has a certain depth, the instrument probe is likely to swing after being lowered by the cable suspension and needs to be righted as much as possible. On the one hand, the pile hole mouth is guided by the collimating tube and the cable is righted from a high place, and on the other hand, the instrument probe is righted from a low place by adding a counterweight.
[0004] In the process of building supervision, the soil of some pile holes is a high water-bearing layer, and there is deep turbid water in the pile hole. After the instrument probe and the counterweight are put in, the instrument probe and the counterweight will be adhered with the mud water, and the mud water will be hardened to leave residues in the gap between the instrument probe and the counterweight, which will cause the center of gravity of the instrument probe to deviate, and is not conducive to keeping the vertical state when subsequently lowered. UTILITY MODEL CONTENTS
[0005] The utility model aims to provide a pile hole diameter detection device which can quickly separate the counterweight on the instrument probe for cleaning, prevent residues from causing the center of gravity of the instrument probe to deviate, and facilitate keeping the vertical state when subsequently entering the pile hole.
[0006] The technical scheme adopted by the utility model is as follows:
[0007] A pile hole diameter detection device comprises a vertical cable and an instrument probe connected with the vertical cable, the top of the instrument probe is sleeved with a modular counterweight ring surrounding the vertical cable, the bottom of the instrument probe is provided with a sharp cone head and an outer edge part connected with the sharp cone head, the end of the sharp cone head away from the instrument probe is in the shape of a sharp head, the bottom of the modular counterweight ring is provided with a rubber sleeve and a plug rod penetrating through the rubber sleeve, the lower end of the plug rod is fixedly connected to the top of the sharp cone head, and a space is left between the plug rod and the instrument probe. During operation, the center of gravity of the instrument probe is lowered by adding a counterweight, the water flow is separated downward by the sharp cone head, the instrument probe is quickly lowered, the plug rod in the rubber sleeve is pulled out when leaving the pile hole, the modular counterweight ring and the sharp cone head are quickly separated, the counterweight on the instrument probe can be quickly separated, the gap can be opened for cleaning, the counterweight can be quickly replaced, the replaced counterweight can be uniformly washed in clean water, residues are prevented from causing the center of gravity of the instrument probe to deviate, and the vertical state when subsequently entering the pile hole is facilitated.
[0008] As an optional solution, the modular counterweight ring comprises a plurality of arc modules surrounding the pendant cable, one side of the arc module is provided with a slot, and the other side is fixed with a protruding block matched with the slot. In order to conveniently disassemble the modular counterweight ring, four arc modules are arranged around the connection between the pendant cable and the instrument probe, the protruding block is inserted into the adjacent slot, until the four arc modules are tightly sleeved on the top of the instrument probe, at this time, the insertion rod can be inserted through the rubber sleeve to realize the tensioning of the modular counterweight ring and the sharp cone head, finally, the insertion rod and the protruding block are pulled out in sequence, the four arc modules can be quickly disassembled, and the counterweight can be quickly taken off.
[0009] As an optional solution, the connection between the pendant cable and the instrument probe is sleeved with a cable sheath, and the cable sheath penetrates the modular counterweight ring in the axial direction.
[0010] As an optional solution, the protruding block is provided with a positioning hole opposite to the rubber sleeve, and an expansion sleeve in interference fit with the upper end of the insertion rod is arranged in the positioning hole.
[0011] As an optional solution, the side close to the instrument probe of the insertion rod is fixed with a damping strip, and the outer side of the damping strip is provided with an arc surface matched with the outer arc surface of the instrument probe.
[0012] As an optional solution, an elastic gasket is arranged between the instrument probe and the sharp cone head, and the elastic gasket is fixed to the top of the sharp cone head and located at the middle of the outer edge.
[0013] As an optional solution, a positioning block is fixed to the middle of the bottom of the instrument probe, and a groove matched with the positioning block is formed in the middle of the elastic gasket.
[0014] The utility model discloses obtained technical effect is:
[0015] The utility model discloses by increasing counterweight to reduce the instrument probe gravity center, and the sharp cone head is separated water flow downward, and the instrument probe is convenient for quick sinking, and when leaving stake hole, the insertion rod in the rubber sleeve is pulled out, and the modular counterweight ring and the sharp cone head are separated quickly, can quick separation instrument probe's counterweight, can open the gap and clean, also can replace clean counterweight quickly, and the replaced counterweight can be put into clean water and wash, prevent leaving residue and cause instrument probe gravity center deviation, make it convenient for the keeping vertical state when subsequent entering stake hole.
[0016] The utility model discloses in order to conveniently disassemble the modular counterweight ring, four arc modules are arranged around the connection between the pendant cable and the instrument probe, the protruding block is inserted into the adjacent slot, until the four arc modules are tightly sleeved on the top of the instrument probe, at this time, the insertion rod can be inserted through the rubber sleeve to realize the tensioning of the modular counterweight ring and the sharp cone head, finally, the insertion rod and the protruding block are pulled out in sequence, the four arc modules can be quickly disassembled, and the counterweight can be quickly taken off. Attached Figure Description
[0017] Figure 1 This is a front view of a pile hole diameter detection device according to this utility model;
[0018] Figure 2 This is a bottom view of the instrument probe of this utility model;
[0019] Figure 3 This is a bottom view of the modular counterweight ring of this utility model;
[0020] Figure 4 This is the front view of the arc module of this utility model;
[0021] Figure 5 This is a bottom view of the arc module of this utility model;
[0022] Figure 6 This is a front view of the pointed cone head of this utility model;
[0023] Figure 7 This is a cross-sectional view of the borehole diameter detection device of this utility model in the borehole state.
[0024] The attached diagram lists the components represented by each number as follows:
[0025] 1. Suspension cable; 2. Instrument probe; 3. Modular counterweight ring; 301. Curvature module; 302. Slot; 303. Protrusion; 304. Positioning hole; 305. Expansion sleeve; 4. Rubber sleeve; 5. Insert rod; 501. Damping strip; 6. Conical head; 601. Elastic pad; 602. Positioning block; 603. Groove; 7. Outer edge; 8. Cable sheath. Detailed Implementation
[0026] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.
[0027] like Figures 1-7 As shown, a pile hole diameter detection device can assist in supervising the pile hole diameter during the drilling stage of building construction. It includes a hanging cable 1 and an instrument probe 2 connected to the hanging cable 1. The instrument probe 2 is used with an SL-UT100 ultrasonic hole and groove quality detector, which is existing technology and therefore not shown in the figure. The wheeled quality detector is moved to the pile hole and suspended by a horizontal plate until it is directly above the pile hole opening. Figure 7As shown, the vertical hanging cable 1 is unwound by the release wheel of the quality detector, and the instrument probe 2 is hung down. The hole diameter is detected in four directions by ultrasonic waves. The whole process is powered by a 48V power battery, and the hole diameter signal is transmitted to the tablet computer along the vertical hanging cable 1.
[0028] During the construction process, it is often necessary to excavate a foundation pit and drill a pile hole. The soil in some pile holes is a high water layer, and there is deep turbid water in the pile hole, which exists in the form of slurry. Although it does not hinder ultrasonic waves, the slurry produces a certain buoyancy on the instrument probe 2, which makes the instrument probe 2 prone to shaking under the impact of water flow.
[0029] Referring to the accompanying drawings Figure 1 and Figure 6 , in order to add counterweight to the instrument probe 2 and stabilize the center of gravity in the slurry, the modular counterweight ring 3 surrounding the vertical hanging cable 1 is sleeved on the top of the instrument probe 2, and the sharp cone head 6 and the outer edge part 7 connected with the sharp cone head 6 are installed at the bottom of the instrument probe 2 to jointly act on the instrument probe 2, thereby lowering the center of gravity of the instrument probe 2. Since the end of the sharp cone head 6 away from the instrument probe 2 is a sharp head, it can separate the water flow downward, facilitating the rapid sinking of the instrument probe 2. However, the slurry will adhere to the gap between the instrument probe 2 and the counterweight. In the present embodiment, a rubber sleeve 4 and a plug rod 5 passing through the rubber sleeve 4 are arranged at the bottom of the modular counterweight ring 3. The lower end of the plug rod 5 is welded to the top of the sharp cone head 6, so that the plug rod 5 can be used to tighten the instrument probe 2 and the sharp cone head 6. At the same time, a space is left between the plug rod 5 and the instrument probe 2, and the four directions of ultrasonic waves are staggered, so as not to damage the instrument probe 2. When leaving the pile hole, the plug rod 5 in the rubber sleeve 4 is pulled out, quickly separating the modular counterweight ring 3 and the sharp cone head 6, so as to quickly separate the counterweight on the instrument probe 2. This can not only open the gap for cleaning, but also quickly replace the clean counterweight. The replaced counterweight can be uniformly placed in clean water for washing, so as to prevent residual slurry from causing the center of gravity of the instrument probe 2 to deviate, and facilitate the instrument probe 2 to maintain a vertical state when subsequently entering the pile hole.
[0030] In the present embodiment, four sets of counterweights can be configured. When one set of counterweight enters the pile hole with the instrument probe 2, the remaining counterweights can be placed in clean water for washing. The instrument probe 2 can adapt to a slurry with a specific gravity of up to 1.3kN / cm 3 , a viscosity of up to 25S, and a sand content of up to 4%, so as to facilitate the staff to use the hole diameter detection device to detect the hole diameter of the excavated pile hole in more complex terrain, and better applicability.
[0031] Referring to the accompanying drawings Figure 3 , Figure 4 and Figure 5,In order to conveniently disassemble and assemble the modular counterweight ring 3, the modular counterweight ring 3 of the embodiment comprises a plurality of arc modules 301 surrounding the pendant cable 1, a slot 302 is formed on one side of the arc module 301, and a protruding block 303 matched with the slot 302 is welded on the other side. Four arc modules 301 are arranged around the connection between the pendant cable 1 and the instrument probe 2, the protruding block 303 is inserted into the adjacent slot 302, until the four arc modules 301 are tightly sleeved on the top of the instrument probe 2. At this time, the insertion rod 5 can be inserted through the rubber sleeve 4 to realize the tensioning of the modular counterweight ring 3 and the pointed cone head 6. Finally, the insertion rod 5 and the protruding block 303 are pulled out in turn, and the four arc modules 301 can be quickly disassembled, so that the counterweight can be quickly taken off.
[0032] Referring to the accompanying drawings Figure 4 , Figure 5 and Figure 6 , since the protruding block 303 is provided with a positioning hole 304 opposite to the rubber sleeve 4, the insertion rod 5 can enter the positioning hole 304 after passing through the rubber sleeve 4. Therefore, the four arc modules 301 are horizontally limited by the insertion rod 5, and the positioning hole 304 is internally provided with an expansion sleeve 305 in interference fit with the upper end of the insertion rod 5. The expansion sleeve 305 binds and pulls the insertion rod 5, preventing the pointed cone head 6 from falling and pulling out the insertion rod 5, so that the counterweight will not disintegrate during lifting.
[0033] Referring to the accompanying drawings Figure 1 and Figure 3 , the cable sheath 8 is sleeved on the connection between the pendant cable 1 and the instrument probe 2 to bind the pendant cable 1. Since the cable sheath 8 penetrates the modular counterweight ring 3 along the axial direction, the modular counterweight ring 3 and the pendant cable 1 can be separated to prevent the pendant cable 1 from being abraded.
[0034] Referring to the accompanying drawings Figure 1 and Figure 6 , the damping strip 501 is bonded to the side of the insertion rod 5 close to the instrument probe 2. Since the outer side of the damping strip 501 has an arc surface matched with the outer arc surface of the instrument probe 2, the damping strip 501 can be elastically deformed to buffer when contacting the instrument probe 2, preventing scratching of the instrument probe 2. In addition, the damping strip 501 can separate the instrument probe 2 and the insertion rod 5, preventing the insertion rod 5 from scratching the instrument probe 2 during insertion.
[0035] Referring to the accompanying drawings Figure 1 and Figure 6 , when installing the counterweight, the elastic gasket 601 is arranged between the instrument probe 2 and the pointed cone head 6 to prevent the pointed cone head 6 from directly impacting the instrument probe 2 and causing mechanical damage. In addition, the elastic gasket 601 is bonded to the top of the pointed cone head 6 and located in the middle of the outer edge 7, which can be centered to prevent the center of gravity of the counterweight from deviating from the center line of the instrument probe 2.
[0036] Referring to the accompanying drawings Figure 1 , Figure 2 and Figure 6In this embodiment, a positioning block 602 is bonded to the middle of the bottom of the instrument probe 2, and a groove 603 adapted to the positioning block 602 is opened in the middle of the elastic pad 601. When the pointed cone 6 is installed, the groove 603 is used to fit the positioning block 602, so as to quickly guide the elastic pad 601 to align with the middle of the bottom of the instrument probe 2, so that the pointed cone 6 can be quickly placed.
[0037] Furthermore, the arc module 301, protrusion 303, insertion rod 5, pointed cone 6 and positioning block 602 in this embodiment can all be made of stainless steel, which will not rust even after multiple immersions in slurry, and the surface is smooth, making it easy to wash away the residue attached to the surface.
[0038] The working principle of this utility model is as follows: During operation, the lower end of the insertion rod 5 is welded to the top of the pointed cone head 6, and the upper end is inserted into the rubber sleeve 4 at the bottom of the modular counterweight ring 3. The insertion rod 5 is used to pull the instrument probe 2 and the pointed cone head 6 together, so as to assemble the instrument probe 2 with a clean configuration.
[0039] Move the wheeled quality inspection instrument to the pile hole, suspending it with a horizontal support plate, until it is directly above the pile hole opening. Figure 7 As shown, the quality testing instrument uses a reel to unwind the hanging cable 1, suspending the instrument probe 2. The borehole diameter is then detected using ultrasonic waves along four cross-shaped directions. The entire process is powered by a 48V battery, simultaneously transmitting the borehole diameter signal along the hanging cable 1 to a tablet computer. As the slurry seeps into the pile hole, the counterweight lowers the center of gravity of the instrument probe 2. Simultaneously, the pointed end of the cone-shaped tip 6, furthest from the instrument probe 2, can deflect the water flow downwards, facilitating the rapid descent of the instrument probe 2.
[0040] When leaving the pile hole, the modular counterweight ring 3 and the pointed cone head 6 can be quickly separated by pulling out the insert rod 5 in the rubber sleeve 4. This allows for quick separation of the counterweight on the instrument probe 2, opening the gap for cleaning, and quickly replacing the counterweight with a clean one. The removed counterweight is then rinsed with clean water to prevent residue from causing the center of gravity of the instrument probe 2 to shift, thus facilitating its vertical position when entering the pile hole later.
[0041] The above description is merely an optional embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional methods in the field.
Claims
1. A pile hole diameter detection device, comprising a vertical hanging cable (1) and an instrument probe (2) connected with the vertical hanging cable (1), characterized in that: The instrument probe (2) is provided with a modular weight ring (3) surrounding the pendant cable (1) at the top, a pointed head (6) and an outer edge (7) connected with the pointed head (6) are installed at the bottom of the instrument probe (2), the pointed head (6) is pointed at the end away from the instrument probe (2), the modular weight ring (3) is provided with a rubber sleeve (4) and a plug rod (5) penetrating through the rubber sleeve (4) at the bottom, the plug rod (5) is fixedly connected to the top of the pointed head (6) at the lower end, and a space is left between the plug rod (5) and the instrument probe (2).
2. The pile hole diameter detection device according to claim 1, characterized in that: The modular weight ring (3) comprises a plurality of arc modules (301) surrounding the pendant cable (1), the arc modules (301) are provided with a plug slot (302) on one side, and a protruding block (303) matched with the plug slot (302) is fixed on the other side.
3. The pile hole diameter detection device according to claim 1, characterized in that: The connection part of the pendant cable (1) and the instrument probe (2) is provided with a cable sheath (8), and the cable sheath (8) penetrates the modular weight ring (3) in the axial direction.
4. The pile hole diameter detection device according to claim 2, characterized in that: The protruding block (303) is provided with a positioning hole (304) opposite to the rubber sleeve (4), and an expansion sleeve (305) is installed in the positioning hole (304) and is in interference fit with the upper end of the plug rod (5).
5. The pile hole diameter detection device according to claim 1, characterized by: The plug rod (5) is fixedly provided with a damping strip (501) on the side close to the instrument probe (2), and the damping strip (501) is provided with an arc surface matched with the outer arc surface of the instrument probe (2).
6. The pile hole diameter detection device according to claim 1, characterized by: An elastic gasket (601) is arranged between the instrument probe (2) and the pointed head (6), and the elastic gasket (601) is fixed to the top of the pointed head (6) at the middle of the outer edge (7).
7. A pile hole diameter detection device according to claim 6, characterized in that: A positioning block (602) is fixed to the middle of the bottom of the instrument probe (2), and a recess (603) matched with the positioning block (602) is formed in the middle of the elastic gasket (601).