Telescopic vibroflotation drill rod and telescopic vibroflotation equipment
By designing a multi-section polygonal drill rod body and sealing components, the problem of rod jamming during construction of telescopic vibratory drill rods was solved, achieving efficient drilling and low-cost construction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-19
- Publication Date
- 2026-04-14
AI Technical Summary
Existing telescopic vibratory drill rods are prone to jamming during construction, which affects the construction process and increases the failure rate and cost.
The drill pipe body is made of multiple sections with polygonal cross sections. The circumferential gap between adjacent drill pipe bodies is sealed by a sealant. Combined with locking fasteners and a stroke limiting structure, the adjustable length and torque transmission of the drill pipe body are achieved.
It reduces the probability of rod jamming, improves construction efficiency and equipment reliability, reduces maintenance costs, and adapts to complex construction environments.
Smart Images
Figure CN121853546A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of drilling equipment, and more specifically, to a telescopic vibratory drill rod and a telescopic vibratory drilling device. Background Technology
[0002] In the field of construction engineering, especially in scenarios requiring deep foundation reinforcement, vibratory compactors or pile drivers are generally used to compact the deep foundation. A vibratory compactor is a specialized machine used in vibratory compaction for foundation reinforcement. It increases the bearing capacity of the foundation by vibrating and compacting the fill material and surrounding soil, reducing settlement and enhancing resistance to seismic liquefaction. In existing technologies, vibratory compactors generally include fixed-length drill rod structures and telescopic drill rod structures. Fixed-length drill rod structures are limited by the height of the main unit and cannot meet the needs of deep hole construction. Telescopic drill rod structures can adjust the drill rod length according to requirements, making them more versatile, flexible, and frequently used.
[0003] The inventors discovered in their research that existing telescopic vibratory drill rods have at least the following drawbacks: During construction, filler materials such as gravel can easily enter from the connection point of adjacent drill pipes, getting stuck between the two adjacent drill pipes, causing the pipes to jam. This not only affects the construction progress but also increases the failure rate and construction costs. Summary of the Invention
[0004] The objectives of this invention include, for example, providing a telescopic vibratory drill rod and a telescopic vibratory drilling device, which can reduce the probability of rod jamming during construction, improve construction safety, reduce equipment failure rate, and reduce construction costs.
[0005] The embodiments of the present invention can be implemented as follows: In a first aspect, the present invention provides a telescopic vibratory drill rod, comprising: The system includes a seal and multiple sections of drill rod body with polygonal cross-sectional profiles. The multiple sections of the drill rod body are sequentially inserted and fitted together in a first direction. Adjacent sections of the drill rod body have a first working state and a second working state that can switch between each other. In the first working state, the adjacent sections of the drill rod body can slide relative to each other in the first direction. In the second working state, the adjacent sections of the drill rod body are relatively fixed relative to each other in the first direction. The inner circumferential surface of one drill pipe body and the outer circumferential surface of the other drill pipe body in two adjacent sections cooperate to clamp the sealing element, so as to seal the circumferential gap between the inner circumferential surface and the outer circumferential surface through the sealing element.
[0006] In an optional embodiment, the seal is configured as an annular structure, and the seal is fixed relative to the drill pipe body in the first direction.
[0007] In an optional embodiment, the drill rod body is provided with a positioning groove, the seal is embedded in the positioning groove, and the seal and the positioning groove are fixed relative to each other in the first direction.
[0008] In an optional embodiment, the drill pipe body includes a tube and a functional plate. One end of the tube is provided with an inwardly folded edge. The functional plate is connected to the tube and has a distance from the inwardly folded edge. The functional plate protrudes from the inner wall of the tube. The area between the functional plate and the inwardly folded edge is set as the positioning groove. The outer peripheral surface is in contact with the surface of the functional plate near the center of the tube body, and the outer peripheral surface and the inner wall of the tube body are spaced apart in a second direction perpendicular to the first direction.
[0009] In an optional implementation, the functional board is detachably connected to the tube body.
[0010] In an optional embodiment, the four corners of the cross-sectional profile of the drill pipe body are all set as arc angles; the cross-section is a plane perpendicular to the first direction.
[0011] In an optional embodiment, the telescopic vibratory drill rod further includes a locking device, which is detachably connected to two adjacent sections of the drill rod body; when the locking device is connected to two adjacent sections of the drill rod body, the two adjacent sections of the drill rod body are relatively fixed in the first direction.
[0012] In an optional embodiment, the locking fastener is configured as a screw-in fastener, which is simultaneously screwed and fixed to two adjacent sections of the drill pipe body.
[0013] In an optional embodiment, a stroke limiting structure is provided between two adjacent drill pipe sections, the stroke limiting structure being used to determine the extension and retraction stroke of the two adjacent drill pipe sections.
[0014] In a second aspect, the present invention provides a telescopic vibratory compaction device, the telescopic vibratory compaction device comprising: The vibratory drill bit and the telescopic vibratory drill rod of any of the foregoing embodiments, wherein the vibratory drill bit is connected to the drill rod body located at one end of all the drill rod bodies.
[0015] The beneficial effects of the embodiments of the present invention include, for example: In summary, the telescopic vibratory drill rod provided in this embodiment employs multiple sections of drill rod bodies with polygonal cross-sectional profiles, sequentially inserted and connected. Adjacent drill rod bodies are fitted together using multiple polygonal surfaces, providing an anti-rotation function. Torque transmission can be achieved without adding anti-rotation strips or other structural components, resulting in a simpler structure, lower manufacturing difficulty, and lower manufacturing costs. Furthermore, the working state of adjacent drill rod sections can be adjusted as needed, allowing for selective extension and retraction of the drill rod body at corresponding positions, thus adapting to complex on-site construction environments. Specifically, adjacent drill rod sections can be adjusted to a first working state, where they can slide relative to each other to adjust the length. When length adjustment is not required, the adjacent drill rod sections are switched to a second working state, where they do not slide relative to each other, the length is fixed, and pressure can be transmitted. Compared to drilling using only gravity, this improves drilling efficiency. Meanwhile, the two adjacent drill pipe sections are interlocked, with at least a portion of their inner and outer circumferential surfaces touching each other. A seal is provided between the outer and inner circumferential surfaces, which increases the circumferential gap at the contact point between the inner and outer circumferential surfaces. This makes it difficult for filler to enter the contact point, thereby greatly reducing the probability of drill pipe jamming, reducing the probability of equipment failure, and thus reducing maintenance costs. Furthermore, because the construction is smoother, it can also improve construction efficiency and shorten the construction cycle. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the telescopic vibratory drill rod of this embodiment; Figure 2 This is an exploded view of the telescopic vibratory drill rod of this embodiment; Figure 3 This is a schematic diagram of the first deformed structure of the telescopic vibratory drill rod in this embodiment; Figure 4 For the corresponding Figure 3 A cross-sectional view; Figure 5 for Figure 4 A magnified view of a portion of point A in the middle; Figure 6 for Figure 4 A magnified view of a portion of point B in the middle; Figure 7 This is a schematic diagram of the second deformed structure of the telescopic vibratory drill rod in this embodiment.
[0018] icon: 100-First sealing element; 200-Second sealing element; 300-Lower drill rod body; 310-Lower tube body; 311-First locking hole; 312-Second locking hole; 320-First folded edge; 400-Middle drill rod body; 410-Middle tube body; 411-Third locking hole; 412-Fourth locking hole; 420-Middle functional plate; 430-Second folded edge; 440-Middle baffle; 450-Middle positioning groove; 460-Middle positioning space; 500-Upper drill rod body; 510-Upper tube body; 511-Fifth locking hole; 520-Upper functional plate; 530-Third folded edge; 540-Upper baffle; 550-Upper positioning groove; 560-Upper positioning space; 600-First locking component; 700-Second locking component; 800-Limiting plate; 900-Vibratory drill bit. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0020] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.
[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0022] In the description of this invention, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.
[0023] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.
[0024] It should be noted that, where there is no conflict, the features in the embodiments of the present invention can be combined with each other.
[0025] Please refer to Figures 1-7 This embodiment provides a telescopic vibratory drill pipe, which includes a seal and multiple drill pipe bodies with polygonal cross-sectional profiles. The multiple drill pipe bodies are sequentially inserted and fitted in a first direction. Adjacent drill pipe bodies have a first working state and a second working state that can switch between each other. In the first working state, the adjacent drill pipe bodies can slide relative to each other in the first direction; in the second working state, the adjacent drill pipe bodies are relatively fixed in the first direction. The inner circumferential surface of one drill pipe body and the outer circumferential surface of the other drill pipe body cooperate to clamp the seal, so as to seal the circumferential gap between the inner and outer circumferential surfaces through the seal.
[0026] As described above, the telescopic vibratory drill rod provided in this embodiment works as follows: During operation, it works in conjunction with a powertrain and a vibratory drill bit 900. The powertrain is connected to the vibratory drill bit 900 via a telescopic vibratory drill rod, which provides torque, downforce, and lifting force to the vibratory drill bit 900. Specifically, in the initial state, both adjacent drill rod sections are adjusted to the first working state, the vibratory drill bit 900 is at the bottom, the telescopic vibratory drill rod extends vertically, and the entire telescopic vibratory drill rod is in a retracted state. At this time, the length of the telescopic vibratory drill rod is at its minimum, the downward movement of all drill rod sections is restricted, and except for the drill rod section connected to the vibratory drill bit 900, the rest of the drill rod sections can slide upward. When drill rod length adjustment is needed, the power assembly overcomes the weight of the uppermost drill rod and lifts it upwards. Once the drill rod reaches the set height, the uppermost drill rod and its adjacent section switch to a second working state, locking the position of the uppermost drill rod and preventing further ascent or descent. This completes the drill rod length adjustment while the uppermost drill rod still transmits downward pressure. It should be understood that when further length adjustment is required, the power assembly overcomes the weight of the uppermost drill rod and its adjacent section, lifting the second section of the drill rod. Once it reaches the set position, it locks. This process is repeated, ultimately allowing for the addition of drill rod lengths as needed, thus enabling deep hole drilling.
[0027] It should be noted that the multi-section drill rod body is sequentially inserted and connected, and the cross-sectional profile of each section is polygonal. When adjacent drill rod bodies are inserted, the multiple polygonal surfaces fit together, which provides an anti-rotation function. Torque transmission can be achieved without adding anti-rotation strips or other structural components, resulting in a simpler structure, lower manufacturing difficulty, and lower manufacturing cost. Furthermore, the working state of adjacent drill rod bodies can be adjusted as needed, allowing for selective extension and retraction of the drill rod body at corresponding positions, thus adapting to complex on-site construction environments. Specifically, adjacent drill rod bodies can be adjusted to the first working state, where they can slide relative to each other to adjust the length. When length adjustment is not required, the adjacent drill rod bodies are switched to the second working state, where the adjacent drill rod bodies do not slide relative to each other, the length is fixed, and pressure can be transmitted. Compared to drilling using only gravity, this improves drilling efficiency. Meanwhile, the two adjacent drill pipe sections are interlocked, with at least a portion of their inner and outer circumferential surfaces touching each other. A seal is provided between the outer and inner circumferential surfaces, which increases the circumferential gap at the contact point between the inner and outer circumferential surfaces. This makes it difficult for filler to enter the contact point, thereby greatly reducing the probability of drill pipe jamming, reducing the probability of equipment failure, and thus reducing maintenance costs. Furthermore, because the construction is smoother, it can also improve construction efficiency and shorten the construction cycle.
[0028] It should be noted that the number of drill rod bodies is designed as needed and is not specifically limited in this embodiment. For ease of description, this embodiment uses three drill rod bodies as an example. The three drill rod bodies are defined as the lower drill rod body 300, the middle drill rod body 400, and the upper drill rod body 500. The lower drill rod body 300, the middle drill rod body 400, and the upper drill rod body 500 are sequentially inserted and matched.
[0029] The following embodiments illustrate the details of the telescopic vibratory drill rod of this application by way of example.
[0030] It should be understood that the cross-sectional profile of the drill pipe body can be triangular, quadrilateral, pentagonal, or hexagonal, etc. In this embodiment, a square cross-section of the drill pipe body is used as an example for illustration.
[0031] Please combine Figures 1-6In this embodiment, optionally, the telescopic vibratory drill rod includes a first seal 100, a second seal 200, a lower drill rod body 300, a middle drill rod body 400, an upper drill rod body 500, a first locking fastener 600, and a second locking fastener 700. The lower drill rod body 300 is inserted into the middle drill rod body 400, and the middle drill rod body 400 is inserted into the upper drill rod body 500. The first seal 100 is clamped between the outer circumferential surface of the lower drill rod body 300 and the inner circumferential surface of the middle drill rod body 400, and is located at the end of the middle drill rod body 400 into which the lower drill rod body 300 is inserted. The second seal 200 is clamped between the outer circumferential surface of the middle drill rod body 400 and the inner circumferential surface of the upper drill rod body 500, and is located at the end of the upper drill rod body 500 into which the middle drill rod body 400 is inserted. The first locking fastener 600 is detachably connected to both the lower drill pipe body 300 and the middle drill pipe body 400, and the second locking fastener 700 is detachably connected to both the middle drill pipe body 400 and the upper drill pipe body 500.
[0032] With this design, the circumferential gap between the lower drill rod body 300 and the middle drill rod body 400 is sealed by the first seal 100, and the circumferential gap between the middle drill rod body 400 and the upper drill rod body 500 is sealed by the second seal 200. The filler is not easy to enter between the drill rod bodies, and the rod jamming phenomenon is not easy to occur.
[0033] It should be noted that the drill pipe body can be made into a square tube, which makes the structure more stable, less prone to deformation, and easier to transmit torque.
[0034] Please combine Figure 2 In this embodiment, optionally, the lower drill rod body 300 includes a lower tube 310 and a first flange 320. The lower tube 310 is a square tube, and its lower end is connected to the vibratory drill bit 900. The first flange 320 is an outward-flared flange located at the upper end of the lower tube 310. Simultaneously, the lower drill rod body 300 is provided with first locking holes 311 and second locking holes 312 spaced apart along its length. There can be multiple first locking holes 311 and second locking holes 312. The first locking holes 311 are located near the lower end, and the second locking holes 312 are located near the first flange 320. Multiple first locking holes 311 can be spaced apart circumferentially around the lower tube 310; similarly, multiple second locking holes 312 can be spaced apart circumferentially around the lower tube 310.
[0035] Please combine Figures 2-6Optionally, the intermediate drill pipe body 400 includes an intermediate tube 410, an intermediate functional plate 420, a second folded edge 430, and an intermediate baffle 440. The intermediate tube 410 is a square tube. The second folded edge 430 and the intermediate baffle 440 are respectively located at the lower and upper ends of the intermediate tube 410. The intermediate tube 410, the second folded edge 430, and the intermediate baffle 440 can be configured as an integral structure. The second folded edge 430 is folded inward. The intermediate baffle 440 is an annular plate. The inner edge of the intermediate baffle 440 is located within the area enclosed by the intermediate tube 410, and the outer edge of the intermediate baffle 440 protrudes from the outer wall of the intermediate tube 410. Simultaneously, there are four intermediate functional plates 420, all of which are detachably connected to the intermediate tube 410. The four intermediate functional plates 420 protrude from the four inner walls of the intermediate tube 410. The four intermediate functional plates 420 have the same height, and each intermediate functional plate 420 has a second folded edge 430 with a gap. The area between the four intermediate functional plates 420 and the second folded edge 430 forms an intermediate positioning groove 450.
[0036] Meanwhile, the intermediate tube 410 is provided with a third locking hole 411 and a fourth locking hole 412. The third locking holes 411 and the fourth locking holes 412 are arranged at intervals along the length of the intermediate tube 410. The third locking holes 411 are close to the lower end of the intermediate tube 410, and the fourth locking holes 412 are close to the upper end of the intermediate tube 410. The number of third locking holes 411 and fourth locking holes 412 is designed as needed, and is not specifically limited in this embodiment. Multiple third locking holes 411 can be arranged at intervals along the circumference of the intermediate tube 410. Similarly, multiple fourth locking holes 412 can be arranged at intervals along the circumference of the intermediate tube 410.
[0037] Furthermore, the intermediate functional plate 420 can be detachably connected to the intermediate tube 410 via bolts or other structural components. For example, an intermediate assembly through hole can be provided on each of the four side walls of the intermediate tube 410, and the four intermediate functional plates 420 can be embedded in the four assembly through holes at the same depth, so that the inner plate surfaces of the four intermediate functional plates 420, that is, the plate surfaces near the center of the intermediate tube 410, form an intermediate positioning space 460 for positioning the lower tube 310.
[0038] Optionally, the upper drill pipe body 500 includes an upper tube body 510, an upper functional plate 520, a third folded edge 530, and an upper baffle 540. The upper tube body 510 is a square tube. The third folded edge 530 and the upper baffle 540 are respectively located at the lower and upper ends of the upper tube body 510. The upper tube body 510, the third folded edge 530, and the upper baffle 540 can be an integral structure. The third folded edge 530 is folded inward. The upper baffle 540 is an annular plate. The inner edge of the upper baffle 540 is located within the area enclosed by the upper tube body 510, and the outer edge of the upper baffle 540 protrudes from the outer wall of the upper tube body 510. Simultaneously, there are four upper functional plates 520. All four upper functional plates 520 are detachably connected to the upper tube body 510, and each of the four upper functional plates 520 protrudes from one of the four inner walls of the upper tube body 510. The four upper functional plates 520 have the same height, and each upper functional plate 520 has a gap in the third fold 530. The area between the four upper functional plates 520 and the third fold 530 forms an upper positioning groove 550.
[0039] Meanwhile, a fifth locking hole 511 is provided on the upper tube body 510. The fifth locking hole 511 is close to the lower end of the upper tube body 510. The number of fifth locking holes 511 is designed as needed, and is not specifically limited in this embodiment. Multiple fifth locking holes 511 can be arranged at intervals around the circumference of the upper tube body 510.
[0040] Furthermore, the upper functional plate 520 can be detachably connected to the upper tube body 510 via bolts or other structural components. For example, an upper mounting through hole can be provided on each of the four side walls of the upper tube body 510, and the four upper functional plates 520 can be embedded in the four mounting through holes at the same depth, so that the inner plate surfaces of the four upper functional plates 520, that is, the plate surfaces near the center of the upper tube body 510, form the upper positioning space 560 of the positioning intermediate tube body 410.
[0041] Please combine Figure 5 and Figure 6 Optionally, the first seal 100 is configured as an annular flexible seal, for example, the first seal 100 can be configured as an annular rubber part, etc. The first seal 100 is installed in the intermediate positioning groove 450. The first seal 100 is positioned by the intermediate positioning groove 450, and the first seal 100 is clamped by the intermediate functional plate 420 and the second folded edge 430. The axial movement of the first seal 100 in the intermediate tube body 410 is restricted, and the position of the first seal 100 is stable and reliable, providing stable support.
[0042] It should be understood that, in order to facilitate the replacement or maintenance of the first seal 100, the second flange 430 can be configured to detachably engage with the intermediate tube 410.
[0043] Optionally, the second seal 200 is configured as an annular flexible seal, for example, the second seal 200 can be configured as an annular rubber part, etc. The second seal 200 is installed in the upper positioning groove 550. The second seal 200 is positioned by the upper positioning groove 550, and the second seal 200 is clamped by the upper functional plate 520 and the third folded edge 530. The axial movement of the second seal 200 in the upper tube body 510 is restricted, and the position of the second seal 200 is stable and reliable, providing stable support.
[0044] It should be understood that, in order to facilitate the replacement or maintenance of the second seal 200, the third flange 530 can be configured to detachably engage with the upper tube body 510.
[0045] Optionally, the number of the first locking member 600 and the second locking member 700 can be designed as needed, and no specific limitation is made in this embodiment. Furthermore, both the first locking member 600 and the second locking member 700 can be configured as threaded fasteners, for example, both can be configured as bolts, etc.
[0046] The assembly structure of the telescopic vibratory drill rod provided in this embodiment is as follows: The vibratory drill bit 900 is located on the side of the lower tube 310 away from the middle tube 410. The upper end of the lower tube 310 passes through the intermediate positioning space 460 and the middle tube 410. The outer wall of the lower tube 310 is in contact with both the first seal 100 and the inner surface of the four intermediate functional plates 420. The first seal 100 can seal the circumferential gap between the lower tube 310 and the intermediate functional plates 420, reducing the probability of filler entering and the probability of jamming. At the same time, the intermediate functional plates 420 cooperate with the lower tube 310 in a surface-to-surface sliding contact, which can guide the lower tube 310 to slide relative to the middle tube 410 in the first direction and also better transmit torque. Furthermore, the first folded edge 320 is located between the intermediate functional plate 420 and the intermediate baffle 440. The intermediate functional plate 420 and the intermediate baffle 440 cooperate to limit the sliding stroke of the first folded edge 320, thereby limiting the sliding distance of the lower tube 310 relative to the intermediate tube 410. That is, the intermediate functional plate 420, the first folded edge 320, and the intermediate baffle 440 cooperate to form a stroke limiting structure for the lower tube 310. Specifically, when the lower tube 310 slides in the direction extending beyond the intermediate tube 410, the first folded edge 320 can contact the side of the intermediate functional plate 420 near the intermediate baffle 440, which can limit the lower tube 310 from disengaging from the intermediate tube 410, thereby controlling the extension length of the lower tube 310. Similarly, when the lower tube 310 slides toward the retracted middle tube 410, the first folded edge 320 can contact the side of the middle baffle 440 near the middle functional plate 420, which can restrict the retracted position of the lower tube 310.
[0047] Simultaneously, the upper end of the intermediate tube 410 penetrates into the upper positioning space 560 and the upper tube 510, and the outer wall of the intermediate tube 410 simultaneously contacts the second seal 200 and the inner plate surfaces of the four upper functional plates 520. The second seal 200 can seal the circumferential gap between the intermediate tube 410 and the upper functional plates 520, reducing the probability of filler entry and the probability of sticking. Meanwhile, the upper functional plates 520 cooperate with the intermediate tube 410 in a surface-to-surface sliding contact, which can guide the intermediate tube 410 to slide relative to the upper tube 510 in the first direction and also better transmit torque. Furthermore, the intermediate baffle 440 is located between the upper functional plates 520 and the upper baffle 540. The cooperation between the upper functional plates 520 and the upper baffle 540 can limit the sliding stroke of the intermediate baffle 440, thereby limiting the sliding distance of the intermediate tube 410 relative to the upper tube 510. That is, the upper functional plate 520, the intermediate baffle 440, and the upper baffle 540 cooperate to form the stroke limiting structure of the intermediate tube 410. Specifically, when the intermediate tube 410 slides in the direction of extending out of the upper tube 510, the portion of the intermediate baffle 440 protruding from the outer wall of the intermediate tube 410 can contact the side of the upper functional plate 520 near the upper baffle 540, which can restrict the intermediate tube 410 from disengaging from the upper tube 510, thereby controlling the extension length of the intermediate tube 410. Similarly, when the intermediate tube 410 slides in the direction of retracting the upper tube 510, the intermediate baffle 440 can contact the side of the upper baffle 540 located within the area enclosed by the upper tube 510 and near the upper functional plate 520, which can restrict the retracted position of the intermediate tube 410.
[0048] It should be noted that, because the intermediate functional baffle protrudes from the inner wall of the intermediate tube 410, the lower tube 310 slides in contact with the intermediate functional baffle. Furthermore, in conjunction with the first sealing element 100, the packing material is less likely to cross the first sealing element 100 and enter between the intermediate functional baffle and the lower tube 310, thus preventing rod jamming. The inner wall of the intermediate tube 410 has a gap with the outer wall of the lower tube 310 in a second direction perpendicular to the first direction, reducing wear and minimizing resistance during drill rod sliding, resulting in more flexible sliding. When rod jamming occurs, the intermediate functional baffle can be removed from the intermediate tube 410, and the packing material can be removed, making maintenance convenient, quick, efficient, and cost-effective. Clearly, the intermediate drill rod body 400 and the upper drill rod body 500 are also less prone to rod jamming, and if jamming does occur, the upper functional plate 520 can be removed, making maintenance convenient and quick.
[0049] In other words, when adjacent drill pipe bodies cannot slide relative to each other due to packing filler jamming, the user only needs to remove the bolts or other structural components that fix the function plate to the pipe body to disassemble the function plate from the inside out. After the function plate is removed, the packing filler that was previously blocked and restricted will be directly exposed, making it easy to quickly remove with tools. After cleaning, the function plate can be reassembled to restore service, greatly reducing downtime and maintenance costs.
[0050] Please combine Figure 7 It should be understood that in other embodiments, a limiting plate 800 can be provided on the outer side of the drill pipe body to limit the sliding stroke of adjacent drill pipe bodies. In this embodiment, the sliding stroke limiting structure is designed on the inner side of the drill pipe body, which can further reduce the probability of the drill pipe getting stuck.
[0051] In addition, in other embodiments, the number of drill pipe sections is not limited to three; it can be selected as needed.
[0052] In addition, in some embodiments, the tube body and the functional board can be configured as an integral structure.
[0053] In this embodiment, the lower drill rod body 300, the middle drill rod body 400, and the upper drill rod body 500 can have their working states adjusted by the first locking fastener 600 and the second locking fastener 700. For example, when the lower drill rod body 300 retracts into the middle drill rod body 400, the first folded edge 320 contacts the middle baffle 440, and the first locking hole 311 aligns with the third locking hole 411. The first locking fastener 600 can be screwed into both the first locking hole 311 and the third locking hole 411 simultaneously, thereby restricting the lower drill rod body 300 from sliding out of the middle drill rod body 400. When the lower drill rod body 300 extends out of the middle drill rod body 400, the first folded edge 320 contacts the middle functional plate 420, and the second locking hole 312 aligns with the third locking hole 411. The first locking fastener 600 can be screwed into both the second locking hole 312 and the third locking hole 411 simultaneously, thereby restricting the retraction distance of the lower drill rod body 300. Similarly, when the intermediate drill rod body 400 retracts into the upper drill rod body 500, the intermediate baffle 440 contacts the upper baffle 540, the third locking hole 411 and the fifth locking hole 511 are aligned, and the second locking fastener 700 is simultaneously screwed into the third locking hole 411 and the fifth locking hole 511. When the intermediate drill rod body 400 extends out of the upper drill rod body 500, the intermediate baffle 440 contacts the upper functional plate 520, the fourth locking hole 412 and the fifth locking hole 511 are aligned, and the second locking fastener 700 is simultaneously screwed into the fourth locking hole 412 and the fifth locking hole 511.
[0054] It should be noted that the number and location of the keyholes can be adjusted as needed, and no specific limitation is made in this embodiment.
[0055] Furthermore, in the initial state, to ensure that adjacent drill pipe sections can slide freely, the first locking fastener 600 and the second locking fastener 700 are removed. The locking hole is sealed with a plug to prevent filler from entering. Moreover, any two adjacent drill pipe sections can be locked at any position as needed, allowing for flexible operation.
[0056] It should be noted that after construction is completed, the locking fasteners on the exposed drill rod body are first released. Then, the power assembly is used to drive the vibratory drill bit 900 and the remaining drill rod bodies to rise. After the released drill rod bodies have retracted, the drill rod bodies inside the borehole are gradually exposed. The exposed fasteners are removed in sequence until all drill rod bodies are retracted together, completing the lifting and storage of the drill rods.
[0057] In other embodiments, optionally, the cross-sectional profile of each drill pipe section has four corners, each of which is an arc corner; further, each corner is a rounded arc corner. The drill pipe body is less prone to cracking or damage at the corner locations.
[0058] The telescopic vibratory drill rod provided in this embodiment consists of multiple sections of drill rod bodies with polygonal cross-sections that are sequentially inserted and connected. Adjacent drill rod bodies have anti-rotation capabilities, can transmit torque, and have a simple and reasonable structure that is easy to manufacture and has low cost. Simultaneously, adjacent drill rod bodies are sealed by a flexible sealing structure, effectively preventing fillers such as stones from entering the drill rod body and causing jamming during drill rod extension and retraction. Even if jamming occurs during operation, the corresponding functional plate can be disassembled to expose the jammed location, facilitating cleanup of fillers. Operation is quick and maintenance costs are low. During operation, the working state of the drill rod body at different positions can be adjusted according to needs, allowing it to switch between sliding and relatively locked states to adapt to different scenarios.
[0059] This embodiment also provides a telescopic vibratory compaction device, which includes a vibratory drill bit 900, a power assembly, and a telescopic vibratory drill rod. The vibratory drill bit 900 cooperates with the lower drill rod body 300, and the power assembly can cooperate with the vibratory drill bit 900 and the upper drill rod body 500 to provide torque and lifting force to the vibratory drill bit 900. The telescopic vibratory compaction device provided in this embodiment has at least the advantages of simple and reasonable structure, easy maintenance, and low cost.
[0060] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.
Claims
1. A telescopic vibratory drill rod, characterized in that, include: The system includes a seal and multiple sections of drill rod body with polygonal cross-sectional profiles. The multiple sections of the drill rod body are sequentially inserted and fitted together in a first direction. Adjacent sections of the drill rod body have a first working state and a second working state that can switch between each other. In the first working state, the adjacent sections of the drill rod body can slide relative to each other in the first direction. In the second working state, the adjacent sections of the drill rod body are relatively fixed relative to each other in the first direction. The inner circumferential surface of one drill pipe body and the outer circumferential surface of the other drill pipe body in two adjacent sections cooperate to clamp the sealing element, so as to seal the circumferential gap between the inner circumferential surface and the outer circumferential surface through the sealing element.
2. The telescopic vibratory drill rod according to claim 1, characterized in that: The sealing element is configured as an annular structure, and the sealing element is fixed relative to the drill pipe body in the first direction.
3. The telescopic vibratory drill rod according to claim 1, characterized in that: The drill rod body is provided with a positioning groove, and the sealing element is embedded in the positioning groove. The sealing element and the positioning groove are fixed relative to each other in the first direction.
4. The telescopic vibratory drill rod according to claim 3, characterized in that: The drill pipe body includes a tube and a functional plate. One end of the tube is provided with an inward folded edge. The functional plate is connected to the tube and has a distance from the inward folded edge. The functional plate protrudes from the inner wall of the tube. The area between the functional plate and the inward folded edge is set as the positioning groove. The outer peripheral surface is in contact with the surface of the functional plate near the center of the tube body, and the outer peripheral surface and the inner wall of the tube body are spaced apart in a second direction perpendicular to the first direction.
5. The telescopic vibratory drill rod according to claim 4, characterized in that: The functional board is detachably connected to the tube body.
6. The telescopic vibratory drill rod according to any one of claims 1-5, characterized in that: The four corners of the cross-sectional profile of the drill pipe body are all set as arc angles; the cross-section is a plane perpendicular to the first direction.
7. The telescopic vibratory drill rod according to any one of claims 1-5, characterized in that: The telescopic vibratory drill rod also includes a locking device, which is detachably connected to two adjacent sections of the drill rod body. When the locking device is connected to two adjacent sections of the drill rod body, the two adjacent sections of the drill rod body are relatively fixed in the first direction.
8. The telescopic vibratory drill rod according to claim 7, characterized in that: The locking fastener is configured as a screw connection, and the locking fastener is simultaneously screwed and fixed to the two adjacent sections of the drill pipe body.
9. The telescopic vibratory drill rod according to any one of claims 1-5, characterized in that: A travel limiting structure is provided between two adjacent drill pipe sections, and the travel limiting structure is used to determine the extension and retraction stroke of the two adjacent drill pipe sections.
10. A telescopic vibratory compaction device, characterized in that, The telescopic vibratory compaction device includes: The vibratory drill bit (900) and the telescopic vibratory drill rod according to any one of claims 1-9, wherein the vibratory drill bit (900) is connected to the drill rod body located at one end of all the drill rod bodies.