A borehole positioning anti-shaking fixing device for geotechnical investigation pressure water test
Patent Information
- Application Number
- CN202522576680.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-04
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-12-04
AI Technical Summary
[0004]本实用新型的目的在于提供一种岩土勘察压水试验用钻孔定位防抖固定装置，以解决上述背景技术中提出的现有的钻孔设备在操作过程中存在诸多问题
该一种岩土勘察压水试验用钻孔定位防抖固定装置，在进行日常使用的过程中，支撑环体内侧边设置的不同规格直径的稳定轴承套接在钻头外侧边，在钻孔过程中能够限制钻头的径向跳动，减少钻头的抖动。这不仅降低了钻头的磨损，延长了钻头的使用寿命，降低了施工成本，还保证了钻孔的直径均匀和孔壁光滑，提高了钻孔质量，为后续的压水试验创造了良好条件。整个装置各部件之间连接牢固，安装底板、支撑连杆、活动插杆、对接顶块等部件相互配合，形成了一个稳定的整体。在钻孔过程中，能够承受钻孔产生的各种作用力，确保装置的稳定运行，减少了故障发生的概率，提高了工作效率。该装置的高度调节功能使得它能够适应不同高度要求的钻孔作业，同时稳定轴承采用不同规格直径的设计，可以满足不同直径钻头的使用需求。这种灵活调节的特性使得装置能够应对各种复杂的地质条件和多样化的施工要求，提高了装置的通用性和实用性。通过安装底板和固定通孔将装置牢固固定在钻孔设备指定点位，为钻孔提供了稳定的基础。同时，支撑连杆和活动插杆构成的伸缩杆结构，能够根据实际需求精确调整装置高度，确保钻孔位置的准确性，有效避免了因定位不准确而导致的试验误差。
Smart Images
Figure CN224834923U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water pressure testing technology in geotechnical exploration, specifically a drilling positioning and anti-shaking fixing device for water pressure testing in geotechnical exploration. Background Technology
[0002] In the field of geotechnical engineering investigation, water pressure testing is a crucial task. It accurately determines key parameters such as the permeability coefficient of soil and rock layers, providing important data for subsequent engineering design, construction, and safety assessment. As a critical preliminary step in water pressure testing, the accuracy and stability of borehole positioning directly affect the reliability and validity of the test results.
[0003] However, existing drilling equipment suffers from numerous problems during operation. First, drilling equipment often lacks precise fixing devices during positioning, relying solely on simple support structures or manual assistance, making it difficult to ensure accurate drilling location. Especially under complex geological conditions, such as soft soil and loose strata, drilling equipment is prone to displacement, leading to deviations between the drilling location and the designed location, thus affecting the accuracy of water pressure tests. Second, the drill bit generates strong vibrations and shaking during drilling. This shaking not only accelerates drill bit wear, reduces its lifespan, and increases construction costs, but also damages the drilling equipment itself, affecting its normal operation. More seriously, drill bit shaking can cause uneven borehole diameter, increased borehole wall roughness, and even potential borehole collapse, posing significant challenges to subsequent water pressure tests. Furthermore, existing fixing devices are mostly structurally simple and cannot be flexibly adjusted according to different geological conditions and drilling requirements. For example, when facing rock and soil layers of varying hardness, different drilling pressures and speeds are required, but existing fixing devices struggle to provide the corresponding stable support and adjustment functions, failing to meet diverse construction requirements. Utility Model Content
[0004] The purpose of this invention is to provide a drilling positioning and anti-vibration fixing device for water pressure testing in geotechnical exploration, to solve the numerous problems existing in the operation of existing drilling equipment as mentioned in the background art. Firstly, drilling equipment often lacks precise fixing devices during positioning, relying solely on simple support structures or manual assistance, making it difficult to ensure the accuracy of the drilling position. Especially under complex geological conditions, such as soft soil and loose strata, the drilling equipment is prone to displacement, leading to deviations between the drilling position and the designed position, thus affecting the accuracy of the water pressure test. Secondly, the drill bit generates strong vibrations and shaking during drilling. This shaking not only accelerates drill bit wear, reduces its service life, and increases construction costs, but also damages the drilling equipment itself, affecting its normal operation. More seriously, drill bit shaking can lead to uneven borehole diameter, increased borehole wall roughness, and even potential borehole collapse and other safety accidents, posing significant challenges to subsequent water pressure tests. Furthermore, most existing fixing devices have a simple structure and cannot be flexibly adjusted according to different geological conditions and drilling requirements. For example, when dealing with soil and rock layers of varying hardness, different drilling pressures and speeds are required, but existing fixing devices are insufficient to provide the corresponding stable support and adjustment functions, failing to meet diverse construction requirements.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a drilling positioning and anti-shaking fixing device for water pressure testing in geotechnical exploration, comprising a mounting base plate, a fixing through hole symmetrically opened on the top surface of the mounting base plate, a support connecting rod vertically fixed on the top surface of the mounting base plate, a movable end groove vertically opened at the bottom end of the support connecting rod, a movable insert rod vertically inserted into the inner side of the movable end groove, a positioning screw threaded to one side of the support connecting rod, a locking screw threaded to the side of the movable insert rod, a docking top block abutting at the top of the movable insert rod, a fixed top plate fixedly connected to the top of the docking top block, a connecting column uniformly welded to the outer side of the fixed top plate, a support ring fixedly welded to one end of the connecting column, a stabilizing bearing horizontally fixedly clamped to the inner side of the support ring, a top clamping hole opened at the top of the movable insert rod, and a bottom clamping rotating block fixedly installed on the bottom surface of the docking top block.
[0006] Preferably, there are four fixing through holes, and the four fixing through holes are symmetrically opened on the top surface of the mounting base plate near the four corners. The mounting base plate is fixedly connected to the designated point of the drilling equipment by the internal bolts of the fixing through holes.
[0007] Preferably, the bottom end of the support rod is fixedly connected to the center of the top surface of the mounting base plate, and the movable end slot is vertically opened at the center of the top end of the support rod. The movable insert rod and the support rod are arranged in a telescopic rod structure.
[0008] Preferably, the positioning screw is horizontally threaded and located on the side of the support rod near the top, with the insertion end extending to the inner side of the movable end groove and the extension end pressed against the outer side of the movable insertion rod.
[0009] Preferably, the locking screw is horizontally threaded and fixedly connected to the screw hole on the side of the movable insert near the top, and the extension end is inserted into the inner side of the top card hole, the extension end is pressed into the outer side of the bottom card block, and the bottom center of the mating top block is mated to the top opening end of the top card hole.
[0010] Preferably, the top of the docking top block is fixedly positioned at the center of the bottom surface of the fixed top plate. There are multiple connecting columns, which are arranged in a ring at equal intervals on the outer side of the fixed top plate. There are multiple stabilizing bearings, which are all designed with bearings of different diameters. The stabilizing bearings are sleeved on the outer side of the drill bit. The bottom end of the bottom chuck is engaged on the inner side of the top chuck hole.
[0011] Compared with the prior art, the beneficial effects of this utility model are: This drilling positioning and anti-vibration fixing device for water pressure testing in geotechnical exploration utilizes stabilizing bearings of varying diameters mounted on the inner side of the support ring, which are fitted onto the outer side of the drill bit. During drilling, this limits the radial runout of the drill bit, reducing vibration. This not only reduces drill bit wear and extends its service life, lowering construction costs, but also ensures uniform borehole diameter and smooth borehole walls, improving drilling quality and creating favorable conditions for subsequent water pressure testing. The entire device is securely connected, with the mounting base plate, support rods, movable insert rods, and connecting top blocks working together to form a stable whole. During drilling, it can withstand various forces generated, ensuring stable operation, reducing the probability of malfunctions, and improving work efficiency. The device's height adjustment function allows it to adapt to drilling operations with different height requirements, and the use of stabilizing bearings of different diameters accommodates drill bits of varying diameters. This flexible adjustment feature enables the device to handle various complex geological conditions and diverse construction requirements, improving its versatility and practicality. The device is securely fixed to the designated point on the drilling equipment by installing a base plate and fixing through holes, providing a stable foundation for drilling. Meanwhile, the telescopic rod structure, consisting of a support connecting rod and a movable insert rod, allows for precise adjustment of the device height according to actual needs, ensuring the accuracy of the drilling position and effectively avoiding experimental errors caused by inaccurate positioning. Attached Figure Description
[0012] Figure 1 This is a three-dimensional front view of the present invention; Figure 2This is a three-dimensional bottom view of the present invention; Figure 3 This is a three-dimensional top view of the present invention; Figure 4 This is a top view of the overall separate structure of this utility model.
[0013] In the diagram: 1. Mounting base plate; 2. Fixing through hole; 3. Supporting connecting rod; 4. Movable end slot; 5. Movable insert rod; 6. Positioning screw; 7. Locking screw; 8. Connecting top block; 9. Fixing top plate; 10. Connecting column; 11. Supporting ring; 12. Stabilizing bearing; 13. Top clamping hole; 14. Bottom clamping rotating block. Detailed Implementation
[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example
[0015] like Figure 1-4 As shown, this utility model provides a technical solution: a drilling positioning and anti-shaking fixing device for water pressure testing in geotechnical exploration, including a mounting base plate 1. Four fixing through holes 2 are symmetrically opened on the top surface of the mounting base plate 1, and all four fixing through holes 2 are symmetrically opened near the four corners of the top surface of the mounting base plate 1. The mounting base plate 1 is fixedly connected to a designated point of the drilling equipment via bolts inside the fixing through holes 2. A support rod 3 is vertically fixed on the top surface of the mounting base plate 1, and a movable end groove is vertically opened at the bottom end of the support rod 3. 4. A movable insert rod 5 is vertically inserted into the inner side of the movable end slot 4. The bottom end of the support connecting rod 3 is fixedly connected to the center of the top surface of the mounting base plate 1. The movable end slot 4 is vertically opened at the center of the top end of the support connecting rod 3. The movable insert rod 5 and the support connecting rod 3 are arranged in a telescopic rod structure. A positioning screw 6 is threadedly connected to one side of the support connecting rod 3. The positioning screw 6 is horizontally threaded and located on the side of the support connecting rod 3 near the top end. The insertion end extends to the inner side of the movable end slot 4, and the extended end is pressed on the outer side of the movable insert rod 5.
[0016] The device is securely fixed to the designated point on the drilling equipment by installing the base plate 1 and fixing through holes 2, providing a stable foundation for drilling. Meanwhile, the telescopic rod structure consisting of the supporting connecting rod 3 and the movable insert rod 5 allows for precise adjustment of the device height according to actual needs, ensuring the accuracy of the drilling position. Example
[0017] like Figure 1-4 As shown, this utility model provides a technical solution: a drilling positioning and anti-shake fixing device for water pressure testing in geotechnical exploration, including a mounting base plate 1. Four fixing through holes 2 are symmetrically opened on the top surface of the mounting base plate 1, and all four fixing through holes 2 are symmetrically opened near the four corners of the top surface of the mounting base plate 1. The mounting base plate 1 is fixedly connected to a designated point of the drilling equipment via internal bolts in the fixing through holes 2. A support rod 3 is vertically fixedly installed on the top surface of the mounting base plate 1. A movable end groove 4 is vertically opened at the bottom end of the support rod 3. A movable insert rod 5 is vertically inserted into the inner side of the movable end groove 4. The bottom end of the support rod 3 is fixedly connected to the center of the top surface of the mounting base plate 1, and the movable end groove 4 is vertically opened at the center of the top end of the support rod 3. The movable insert rod 5 and the support rod 3 are configured as telescopic rods. A positioning screw 6 is threadedly connected to one side of the support link 3. The positioning screw 6 is horizontally threaded and located near the top of the support link 3. The insertion end extends to the inner side of the movable end slot 4. The extension end is pressed and located on the outer side of the movable insert rod 5. A locking screw 7 is threadedly connected to the side of the movable insert rod 5. A docking top block 8 is connected to the top of the movable insert rod 5. The locking screw 7 is horizontally threaded and fixedly located at the screw hole near the top of the movable insert rod 5. The extension end is inserted and located on the inner side of the top clamping hole 13. The extension end is pressed and located on the outer side of the bottom clamping rotating block 14. The bottom center of the docking top block 8 is docked with the top opening end of the top clamping hole 13. A fixed top plate 9 is fixedly connected to the top of the docking top block 8. A connecting column 10 is uniformly welded to the outer side of the fixed top plate 9. A support ring 11 is fixedly welded to one end of the connecting column 10.
[0018] By using stabilizing bearings 12 of different diameters mounted on the inner side of the support ring 11 and fitted onto the outer side of the drill bit, the radial runout of the drill bit can be limited during drilling, reducing drill bit vibration. This not only reduces drill bit wear and extends its service life, lowering construction costs, but also ensures uniform hole diameter and smooth hole walls, improving drilling quality. Example
[0019] like Figure 1-4As shown, this utility model provides a technical solution: a drilling positioning and anti-shaking fixing device for water pressure testing in geotechnical exploration, including a mounting base plate 1. Four fixing through holes 2 are symmetrically opened on the top surface of the mounting base plate 1, and all four fixing through holes 2 are symmetrically opened near the four corners of the top surface of the mounting base plate 1. The mounting base plate 1 is fixedly connected to a designated point of the drilling equipment via internal bolts in the fixing through holes 2. A support rod 3 is vertically fixed on the top surface of the mounting base plate 1. A movable end groove 4 is vertically opened at the bottom end of the support rod 3. The inner side of the movable end groove 4 is vertically... A movable insert rod 5 is inserted vertically. The bottom end of the support connecting rod 3 is fixedly connected to the center of the top surface of the mounting base plate 1. The movable end slot 4 is vertically opened at the center of the top end of the support connecting rod 3. The movable insert rod 5 and the support connecting rod 3 are arranged in a telescopic rod structure. A positioning screw 6 is threadedly connected to one side of the support connecting rod 3. The positioning screw 6 is horizontally threaded and located on the side of the support connecting rod 3 near the top end, and the insertion end extends to the inner side of the movable end slot 4. The extension end is pressed against the outer side of the movable insert rod 5. A locking screw 7 is threadedly connected to the side of the movable insert rod 5. The top of the movable insert rod 5 is connected to a top block 8. A locking screw 7 is horizontally threaded and fixedly connected to the screw hole on the side of the movable insert rod 5 near the top. The extension end is inserted into the inner side of the top clamping hole 13, and the extension end is pressed onto the outer side of the bottom clamping block 14. The bottom center of the top block 8 is connected to the top opening of the top clamping hole 13. A fixed top plate 9 is fixedly connected to the top of the top block 8. A connecting column 10 is evenly welded to the outer side of the fixed top plate 9. A support ring 11 is fixedly welded to one end of the connecting column 10. A stabilizing shaft is horizontally fixedly clamped to the inner side of the support ring 11. The top of the movable insert rod 5 is provided with a top locking hole 13. The bottom surface of the connecting top block 8 is fixedly provided with a bottom locking rotating block 14. The top of the connecting top block 8 is fixedly provided at the center of the bottom surface of the fixed top plate 9. There are multiple connecting columns 10, and the multiple connecting columns 10 are arranged in a ring at equal intervals on the outer side of the fixed top plate 9. There are multiple stabilizing bearings 12, and the multiple stabilizing bearings 12 are all set with bearing structures of different specifications and diameters. The stabilizing bearings 12 are sleeved on the outer side of the drill bit. The bottom end of the bottom locking rotating block 14 is locked on the inner side of the top locking hole 13.
[0020] By employing different diameter designs for the stabilizing bearing 12, the device can meet the needs of drill bits of varying diameters. This flexible adjustment feature enables the device to cope with various complex geological conditions and diverse construction requirements, thereby improving its versatility and practicality.
[0021] Working Principle: The mounting base plate 1 is placed at the designated point on the drilling equipment. Four symmetrical through holes 2 are drilled on the top surface of the mounting base plate 1 near the four corners. Bolts are used to firmly fix the mounting base plate 1 to the drilling equipment, ensuring the stability of the entire device. The bottom end of the support rod 3 is fixedly connected to the center of the top surface of the mounting base plate 1. A movable end slot 4 is vertically formed at the center of its top end. The movable insertion rod 5 is vertically inserted into the inner side of the movable end slot 4, forming a telescopic rod structure. According to the actual drilling requirements, the positioning screw 6 threaded near the top of the support rod 3 is loosened, so that its extension end no longer presses against the outer side of the movable insertion rod 5. At this time, the movable insertion rod 5 can be moved up and down to adjust the height of the device. After adjusting to the appropriate height, the positioning screw 6 is tightened, so that its extension end presses against the movable insertion rod 5 again, fixing the movable insertion rod 5 inside the support rod 3, completing the height adjustment. The movable insert rod 5 has a top locking hole 13 at its top end. A bottom locking rotating block 14 is fixedly installed on the bottom surface of the docking top block 8. The bottom locking rotating block 14 on the bottom surface of the docking top block 8 is engaged with the inner side of the top locking hole 13, achieving initial docking between the docking top block 8 and the movable insert rod 5. Then, the locking screw 7, threaded near the top screw hole on the side of the movable insert rod 5, is rotated, causing its extended end to insert into the inner side of the top locking hole 13 and press against the outer side of the bottom locking rotating block 14, further securing the docking top block 8 firmly to the top of the movable insert rod 5. A fixed top plate 9 is fixedly connected to the top of the docking top block 8. Multiple connecting columns 10 are evenly welded to the outer side of the fixed top plate 9. These connecting columns 10 are arranged in a ring at equal intervals, and a supporting ring 11 is fixedly welded to one end. Multiple stabilizing bearings 12 of different diameters are horizontally fixedly engaged on the inner side of the supporting ring 11. The drill bit is passed through the stabilizing bearing 12, so that the stabilizing bearing 12 is fitted onto the outer side of the drill bit. During drilling, the stabilizing bearing 12 can limit the radial runout of the drill bit and reduce drill bit vibration, while allowing the drill bit to rotate around its own axis, ensuring the normal operation of drilling.
[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A drilling positioning and anti-shaking fixing device for water pressure testing in rock and soil exploration, comprising a mounting base plate (1), characterized in that: The mounting base plate (1) has symmetrically provided fixed through holes (2) on its top surface. A support connecting rod (3) is vertically fixed on the top surface of the mounting base plate (1). A movable end groove (4) is vertically provided at the bottom end of the support connecting rod (3). A movable insert rod (5) is vertically inserted into the inner side of the movable end groove (4). A positioning screw (6) is threaded to one side of the support connecting rod (3). A locking screw (7) is threaded to the side of the movable insert rod (5). The top end of the movable insert rod (5) is... The docking top block (8) is fixedly connected to the top of the docking top block (8), and a fixed top plate (9) is fixedly connected to the top of the fixed top plate (9). A connecting column (10) is uniformly welded to the outer side of the fixed top plate (9). A supporting ring (11) is fixedly welded to one end of the connecting column (10). A stabilizing bearing (12) is horizontally fixedly snapped to the inner side of the supporting ring (11). A top locking hole (13) is opened at the top of the movable insert rod (5). A bottom locking rotating block (14) is fixedly installed on the bottom surface of the docking top block (8).
2. The drilling positioning and anti-vibration fixing device for water pressure testing in rock and soil exploration according to claim 1, characterized in that: The number of fixed through holes (2) is four, and the four fixed through holes (2) are symmetrically opened on the top surface of the mounting base plate (1) near the four corners. The mounting base plate (1) is fixedly connected to the designated point of the drilling equipment by the internal bolts of the fixed through holes (2).
3. The drilling positioning and anti-vibration fixing device for water pressure testing in rock and soil exploration according to claim 1, characterized in that: The bottom end of the support rod (3) is fixedly connected to the center of the top surface of the mounting base plate (1), and the movable end slot (4) is vertically opened at the center of the top end of the support rod (3). The movable insert rod (5) and the support rod (3) are arranged in a telescopic rod structure.
4. The drilling positioning and anti-vibration fixing device for water pressure testing in rock and soil exploration according to claim 1, characterized in that: The positioning screw (6) is horizontally threaded and located on the side of the support rod (3) near the top, with the insertion end extending to the inner side of the movable end groove (4) and the extension end being pressed onto the outer side of the movable insert rod (5).
5. The drilling positioning and anti-vibration fixing device for water pressure testing in rock and soil exploration according to claim 1, characterized in that: The locking screw (7) is horizontally threaded and fixedly connected to the screw hole on the side of the movable insert (5) near the top, and the extension end is inserted into the inner side of the top card hole (13). The extension end is pressed into the outer side of the bottom card block (14), and the bottom center of the docking top block (8) is docked into the top opening end of the top card hole (13).
6. The drilling positioning and anti-vibration fixing device for water pressure testing in rock and soil exploration according to claim 1, characterized in that: The top of the docking top block (8) is fixedly set at the center of the bottom surface of the fixed top plate (9). There are multiple connecting columns (10), and the multiple connecting columns (10) are arranged in a ring at equal intervals on the outer side of the fixed top plate (9). There are multiple stabilizing bearings (12), and the multiple stabilizing bearings (12) are all set with bearing structures of different diameters. The stabilizing bearings (12) are sleeved on the outer side of the drill bit. The bottom end of the bottom clamping block (14) is clamped on the inner side of the top clamping hole (13).