A rock coring device for geotechnical investigation

Abstract

The rock coring device for geotechnical engineering investigation disclosed by the application belongs to the field of rock coring devices and comprises a moving mechanism for driving the overall movement of the device, a driving mechanism assembled on the moving mechanism and capable of moving up and down in the vertical direction, and a coring mechanism assembled on the driving mechanism, wherein an anti-toppling device is assembled in the through slot in the moving mechanism. By arranging the anti-toppling device, first, before the device is operated, the first positioning rod is pulled out to make the first metal sliding block slide to the second positioning rod, at this time, the two-section liquid storage capsule is squeezed, the liquid in the two-section liquid storage capsule enters the first hydraulic chamber, the hydraulic inserting rod is extended, the stability of the device is increased, and at the same time, since the first metal sliding block is displaced, the center of gravity of the anti-toppling device is backward, and stronger supporting effect can be provided.

Description

Technical Field

[0001] This application relates to the field of rock core sampling devices, and more specifically, to a rock core sampling device for geotechnical engineering investigation. Background Technology

[0002] Core taking is the process of using special coring tools during drilling to extract blocks of underground rock to the surface. These blocks of rock are called cores. In mineral exploration and development, drilling work is carried out according to the geological design of the stratigraphic level and depth, and coring tools are lowered into the well to extract rock samples.

[0003] Chinese patent application CN115788339A discloses a rock core sampling device for geotechnical engineering exploration. This invention relates to the field of rock core sampling technology and includes a base frame, a power unit, a drive unit, an anti-tipping device, and a core sampling device. The power unit and the anti-tipping device are both located on top of the base frame. The drive unit and the core sampling device are respectively located on both sides of the power unit and are fixedly connected to it. The drive unit includes a support plate, the side of which is fixedly connected to the power unit. A drive motor is fixedly connected to the top of the support plate, and a water tank is fixedly connected to the top of the drive motor. In the aforementioned application, an anti-tipping device is used to prevent tilting during core sampling. However, it uses a single sliding block to increase the weight at the tail end. While this has some anti-tipping effect, it only increases the weight at the tail end, resulting in a single, ineffective method. Given the significant weight of the rock core, the entire device may still tilt. Summary of the Invention

[0004] This invention addresses the problem of existing technologies that use a single sliding slider to increase the weight at the tail end. While this method provides some anti-tipping effect, it only increases the weight of the tail end, resulting in a limited effect. Given the significant weight of the rock core, the entire device can still tip over. Therefore, this invention proposes a rock core sampling device for geotechnical engineering investigations that provides secondary stabilization, ensuring the device will not tip over.

[0005] To achieve the above objectives, this application provides a rock core sampling device for geotechnical engineering investigation, including a moving mechanism for driving the overall movement of the device, a driving mechanism mounted on the moving mechanism that can move up and down in the vertical direction, a core sampling mechanism mounted on the driving mechanism, and an anti-tipping device installed in the internal through groove of the moving mechanism. The anti-tipping device includes a metal housing, which is rotatably connected to the through groove of the moving mechanism via a shaft. A first metal slider for adjusting the counterweight is slidably connected on the internal slide of the metal housing. A first hydraulic chamber is fixed inside the metal housing. One end of the first hydraulic chamber is fixed and connected to a two-section liquid storage bladder. A hydraulic rod is slidably connected to the piston at the other end of the first hydraulic chamber. Second hydraulic chambers are mounted on both sides of the first hydraulic chamber. A two-section hydraulic rod is slidably connected to the piston inside the second hydraulic chamber. A controllable valve-type check valve is fixed on the side of the second hydraulic chamber near the first hydraulic chamber. A control component is mounted on the side of the metal housing.

[0006] Preferably, the control assembly includes a housing. A first positioning rod for controlling a first metal slider is slidably connected through and to one side of the housing's interior. A second positioning rod for secondary control of the first metal slider is slidably connected through and to the other side of the housing's interior via a spring piece. A third hydraulic chamber is fixed inside the housing. A pressure rod is slidably connected to a piston on one side of the third hydraulic chamber, and a push rod is slidably connected to a piston on the other side of the third hydraulic chamber. A track rod is fixed to the side of the housing near the pressure rod, and a balance roller is movably mounted within the track rod. The control assembly controls the sliding distance of the first metal slider. The first positioning rod controls the first metal slider to slide to the position of the second positioning rod, and then the second positioning rod controls the first metal slider to slide to the bottom of the metal housing.

[0007] Preferably, the two-section hydraulic rod consists of two rods hinged together, with a torsion spring inside the hinge. A spring is fixed between the two-section hydraulic rod and the inner wall of the second hydraulic chamber. In its initial state, the hinge of the two-section hydraulic rod is located inside the second hydraulic chamber, thus providing support. If the hinge is located outside the second hydraulic chamber, the two-section hydraulic rod is in a bendable state and does not provide support.

[0008] Preferably, the top of the metal housing is provided with a dustproof reset assembly, which includes a reset rod fixed to a first metal slider. A sealing block is slidably connected to the outside of the reset rod, and accordion-style sealing membranes are connected to both sides of the sealing block. As the reset rod slides along with the first slider, the sealing block moves accordingly. At this time, the retractable accordion-style sealing membranes seal the rectangular groove at the top of the metal housing, preventing debris from entering its interior.

[0009] Preferably, a rectangular groove is provided in the top plate of the metal box, the reset rod is located in the rectangular groove, and the accordion-style sealing membrane connected to the sealing block and its two sides seals the top of the rectangular groove.

[0010] Preferably, the side of the metal housing is equipped with a weight-increasing component. This component includes a second metal slider slidably connected to a slide rail, a third positioning rod slidably connected to the side wall of the metal housing via a spring, and a positioning block fixed to the outside of the metal housing. An arc-shaped plate is slidably connected through the interior of the positioning block. The weight-increasing component further increases the weight of the metal housing, and the sliding of the second metal slider further enhances the end-effector gravity of the anti-tipping device.

[0011] Preferably, the second metal slider has two circular grooves on the side near the first metal slider, and each circular groove is fitted with an elastic support rod. The second metal slider also has a groove on the side near the third positioning rod. The elastic support rods prevent the second metal slider from impacting the first metal slider during sliding.

[0012] The advantages of this application are: (1) By setting up an anti-tipping device, before the equipment is put into operation, the first metal slider is slid to the second positioning rod by pulling out the first positioning rod. At this time, the two-section liquid storage bladder is squeezed and the liquid inside enters the first hydraulic chamber, causing the hydraulic rod to extend and increasing the stability of the equipment. At the same time, since the first metal slider has been displaced, the center of gravity of the anti-tipping device is back, which can provide a stronger support effect. Meanwhile, if the weight of the core is too large and the equipment tilts slightly, the control component can control the first metal slider to continue to slide down, and the two-section liquid storage bladder is continuously squeezed. At this time, the two-section hydraulic rod extends and loses support for the metal box, causing the metal box to rotate to contact the ground, providing a second downward pressure to balance the equipment.

[0013] (2) By setting up a dustproof reset component, the sealing block will move along with the reset rod as it slides with the first slider. At this time, the rectangular groove at the top of the metal box is sealed by a retractable accordion-style sealing membrane to prevent debris from entering its interior.

[0014] (3) By setting up a weight-increasing component, this application can further increase the weight of the metal box and further increase the end gravity of the anti-tipping device by sliding the second metal slider. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application. In the drawings: Figure 1 This is a structural schematic diagram of the overall appearance of the present invention.

[0016] Figure 2This is a schematic diagram showing the connection between the anti-tipping device and the moving mechanism of the present invention.

[0017] Figure 3 This is a schematic diagram of the anti-tipping device of the present invention.

[0018] Figure 4 This is a schematic diagram of the internal structure of the anti-tipping device of the present invention.

[0019] Figure 5 This is a schematic diagram of part of the anti-tipping device of the present invention.

[0020] Figure 6 This is a schematic diagram of part of the anti-tipping device of the present invention.

[0021] Figure 7 This is a schematic diagram of part of the anti-tipping device of the present invention.

[0022] Figure 8 This is a schematic diagram of the structure of the dustproof reset component of the present invention.

[0023] Figure 9 This is a schematic diagram of the weight-adding component of the present invention.

[0024] Figure 10 This is a diagram of the ball-throwing structure of the second metal slider of the present invention.

[0025] In the above image, 100. Moving mechanism; 200. Driving mechanism; 300. Core extraction mechanism; 400. Anti-tipping device; 410. Metal housing; 420. Shaft; 430. Two-section liquid storage bladder; 450. Shell; 460. First positioning rod; 470. Slide rail; 480. First metal slider; 490. Reset rod; 4110. First hydraulic chamber; 4111. Second hydraulic chamber; 4112. Controllable valve type check valve; 4113. Two-section hydraulic rod; 4120. Hydraulic insertion rod; 4130. Second positioning rod; 4140. Third hydraulic chamber; 4150. Push rod; 4160. Pressure rod; 4170. Balance roller; 4180. Track rod; 500, Weight-adding component; 510, Second metal slider; 520, Positioning block; 530, Arc plate; 540, Third positioning rod; 550, Groove; 560, Elastic support rod; 600. Dustproof reset assembly; 610. Sealing block; 620. Bellows-style sealing membrane. Detailed Implementation

[0026] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative effort should fall within the scope of protection of the present application.

[0027] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be used interchangeably where appropriate for the purposes of describing embodiments of this application herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0028] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0029] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0030] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0031] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments. Example

[0032] See Figures 1-7 This embodiment provides a rock core sampling device for geotechnical engineering exploration, including a moving mechanism 100 for driving the overall movement of the device. The moving mechanism 100 is provided with a plurality of support feet controlled by threads to support the overall device and prevent movement during the core sampling process. A driving mechanism 200 that can move up and down in the vertical direction is mounted on the moving mechanism 100. A core sampling mechanism 300 is mounted on the driving mechanism 200. An anti-tipping device 400 is installed in the internal through groove of the moving mechanism 100. The anti-tipping device 400 includes a metal housing 410, which is rotatably connected to the through groove of the moving mechanism 100 via a shaft 420. When the limiting structure between the metal housing 410 and the moving mechanism 100 is released, the metal housing 410 can rotate under the action of the shaft 420. A first metal slider 480 for adjusting the counterweight is slidably connected to the internal slide rail 470 of the metal housing 410. Since the slide rail 470 is inclined, the first metal slider 480 will slide from the high point to the low point of the slide rail 470 without external interference. A first hydraulic chamber 4110 is fixed inside the metal housing 410. One end of the first hydraulic chamber 4110 is fixed and connected to a two-section liquid storage bladder 430. The liquid bladder 430 is squeezed twice by the first metal slider 480, producing two different effects. A hydraulic rod 4120 is slidably connected to the piston at the other end of the first hydraulic chamber 4110. When the two-section liquid bladder 430 is squeezed for the first time by the first metal slider 480, the liquid inside enters the first hydraulic chamber 4110. Under the pressure of the liquid, the hydraulic rod 4120 is forced out, increasing the friction with the ground. Second hydraulic chambers 4111 are mounted on both sides of the first hydraulic chamber 4110. A two-section hydraulic rod 4113 is slidably connected to the piston inside the second hydraulic chamber 4111. In the initial state, the two-section hydraulic rod 4113 is in contact with the moving mechanism 100, supporting the metal chamber 410 to prevent rotation. (See also...) Figure 7The two-section hydraulic rod 4113 consists of two rods hinged together, with a torsion spring inside the hinge. A spring is fixed between the two-section hydraulic rod 4113 and the inner wall of the second hydraulic chamber 4111. A controllable valve-type check valve 4112 is fixed on the side of the second hydraulic chamber 4111 near the first hydraulic chamber 4110. The controllable valve-type check valve 4112 prevents the liquid inside the two-section liquid storage bladder 430 from entering the second hydraulic chamber 4111 when it is first squeezed. When the two-section liquid storage bladder 430 is squeezed for the second time, the liquid inside will enter the second hydraulic chamber 4111 after passing through the controllable valve-type check valve 4112, thereby controlling the extension of the two-section hydraulic rod 4113. Due to the presence of the controllable valve-type check valve 4112, the liquid entering the second hydraulic chamber 4111 will not flow back and requires manual intervention to reset. The side of the metal housing 410 is equipped with control components.

[0033] See Figure 6 The control assembly includes a housing 450. A first positioning rod 460 for controlling a first metal slider 480 is slidably connected through and through one side of the housing 450. The portion of the first positioning rod 460 passing through the metal housing 410 positions the first metal slider 480. A second positioning rod 4130 for secondary control of the first metal slider 480 is slidably connected through and through a spring tab on the other side of the housing 450. When the first positioning rod 460 retracts, the first metal slider 480 slides down, initially compressing the two-section liquid reservoir 430, and then the first metal slider 480 is positioned by the second positioning rod 4130. A third hydraulic chamber 4140 is fixed inside the housing 450. One side of the third hydraulic chamber 4140 is movable. A pressure rod 4160 is slidably connected to the piston on the other side of the third hydraulic chamber 4140. A push rod 4150 is slidably connected to the piston on the other side of the third hydraulic chamber 4140. The push rod 4150 has an inclined surface on the side near the second positioning rod 4130. When the push rod 4150 moves, its inclined surface area will squeeze the second positioning rod 4130 to tighten. A track rod 4180 is fixed on the side of the housing 450 near the pressure rod 4160. A balance roller 4170 is movably assembled in the track rod 4180. When the equipment tilts slightly, the balance roller 4170 will slide in the track rod 4180, thereby squeezing the pressure rod 4160, causing the push rod 4150 to push the second positioning rod 4130 to tighten, and causing the first metal slider 480 to continuously press down on the two-section liquid storage bladder 430.

[0034] The specific application of the aforementioned anti-tipping device 400 in the coring operation is as follows: First, the moving mechanism 100 moves to the top of the rock and adjusts it to a suitable position. Then, the first positioning rod 460 is pulled out. At this time, the first metal slider 480 loses its limiting effect and slides from top to bottom in the slide rail 470. It is then positioned by the second positioning rod 4130. During its movement, the first metal slider 480 will initially squeeze the two-section liquid storage bladder 430, causing the liquid in the two-section liquid storage bladder 430 to enter the first hydraulic chamber 4110. Under the action of liquid pressure, the hydraulic insertion rod 4120 is pushed out and contacts the ground, increasing the friction between the moving mechanism 100 and the ground to prevent movement during the coring operation. Then, the driving mechanism 200 controls the coring mechanism 300 to move down to perform the coring operation. At the end of coring, the core may become stuck inside the coring cylinder of the coring mechanism 300, causing an increase in the weight of the coring mechanism 300. If the weight becomes too large, the equipment will tilt slightly towards the coring mechanism 300. At this time, the balance roller 4170 slides within the track rod 4180 to squeeze the pressure rod 4160. Simultaneously, the liquid pressure in the third hydraulic chamber 4140 increases, causing the push rod 4150 to extend. The side of the push rod 4150 closest to the second positioning rod 4130 is inclined. Therefore, as the push rod 4150 moves, its inclined area squeezes and retracts the second positioning rod 4130. At this point, the second positioning rod 4130 cancels its positioning effect on the first metal slider 480, and then the first metal... As slider 480 continues to slide down, it further compresses the two-section liquid storage bladder 430, causing the remaining liquid inside to enter the first hydraulic chamber 4110. Since the hydraulic rod 4120 has already extended, the excess liquid will enter the second hydraulic chamber 4111 through the controllable valve-type check valve 4112. As the liquid pressure in the second hydraulic chamber 4111 increases, it will push the two-section hydraulic rod 4113 to extend. Since the two-section hydraulic rod 4113 has a foldable effect after it extends, it loses its supporting effect. At this time, the metal box 410 rotates until it contacts the ground. This further changes the center of gravity of the anti-tipping device 400, pressing down the tilted equipment as a whole to prevent it from tipping over.

[0035] See Figure 7 The top of the metal housing 410 is provided with a dustproof reset assembly 600. The dustproof reset assembly 600 includes a reset rod 490, which is fixed on the first metal slider 480. A sealing block 610 is slidably connected to the outside of the reset rod 490. A bellows-type sealing membrane 620 is connected to both sides of the sealing block 610. A rectangular groove is opened in the top plate of the metal housing 410. The reset rod 490 is located in the rectangular groove, and the top of the rectangular groove is closed by the sealing block 610 and the bellows-type sealing membrane 620 connected to its two sides.

[0036] In specific applications, the aforementioned dustproof reset assembly 600, since the reset rod 490 is fixed on the first metal slider 480, will slide along with the first metal slider 480. At the same time, since the reset rod 490 and the sealing block 610 are connected through and slidably, the sealing block 610 will slide during the sliding of the reset rod 490. During the sliding of the sealing block 610, the left accordion-style sealing membrane 620 unfolds and the right accordion-style sealing membrane 620 folds to ensure the sealing effect of the rectangular groove opened at the top of the metal housing 410 and prevent foreign objects from entering the metal housing 410 during the core extraction process.

[0037] See Figures 9-10 The side of the metal housing 410 is equipped with a weight-increasing component 500. The weight-increasing component 500 includes a second metal slider 510 slidably connected to a slide rail 470, a third positioning rod 540 slidably connected to the side wall of the metal housing 410 by a spring, and a positioning block 520 fixed to the outside of the metal housing 410. An arc-shaped plate 530 is slidably connected through the interior of the positioning block 520. The second metal slider 510 has two circular grooves on the side near the first metal slider 480. Each circular groove is equipped with an elastic support rod 560. The elastic support rod 560 can prevent the second metal slider 510 from having a hard impact with the first metal slider 480 when sliding. The second metal slider 510 has a groove 550 on the side near the third positioning rod 540. One end of the third positioning rod 540 located in the metal housing 410 is stuck in the groove 550 to position the second metal slider 510.

[0038] In practical application, when the metal box 410 tilts, the arc plate 530 is squeezed by the base of the moving mechanism 100, causing it to move. The movement of the arc plate 530 squeezes the third positioning rod 540 to move, causing it to disengage from the groove 550 of the second metal slider 510. At this time, the second metal slider 510 slides on the slide rail 470 without external force restriction until it contacts the first metal slider 480, thereby increasing the weight of the tail of the metal box 410 again to further enhance the support effect of the anti-tipping device 400. At the same time, the elastic support rod 560 can prevent the second metal slider 510 from having a hard impact with the first metal slider 480 when sliding, thus providing a protective effect.

[0039] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A rock core sampling device for geotechnical engineering investigation, comprising a moving mechanism (100) for driving the overall movement of the device, a driving mechanism (200) mounted on the moving mechanism (100) having the ability to move up and down in the vertical direction, a core sampling mechanism (300) mounted on the driving mechanism (200), and an anti-tipping device (400) mounted in the internal through groove of the moving mechanism (100). Its features are, The anti-tipping device (400) includes a metal housing (410), which is rotatably connected to the through groove of the moving mechanism (100) via a shaft (420). A first metal slider (480) for adjusting the counterweight is slidably connected on the internal slide rail (470) of the metal housing (410). A first hydraulic chamber (4110) is fixed inside the metal housing (410), and one end of the first hydraulic chamber (4110) is fixed and connected to a two-section liquid storage bladder (430). The piston at the other end of the first hydraulic chamber (4110) is slidably connected to a hydraulic rod (4120). The first hydraulic chamber (4110) is equipped with a second hydraulic chamber (4111) on both sides. The piston inside the second hydraulic chamber (4111) is slidably connected to a two-section hydraulic rod (4113). A controllable valve type check valve (4112) is fixed on the side of the second hydraulic chamber (4111) near the first hydraulic chamber (4110). The side of the metal box (410) is equipped with a control component. The control assembly includes a housing (450), a first positioning rod (460) for controlling a first metal slider (480) is slidably connected through one side of the housing (450), and a second positioning rod (4130) for secondary control of the first metal slider (480) is slidably connected through a spring sheet on the other side of the housing (450). A third hydraulic chamber (4140) is fixed inside the housing (450), a pressure rod (4160) is slidably connected to a piston on one side of the third hydraulic chamber (4140), and a push rod (4150) is slidably connected to a piston on the other side of the third hydraulic chamber (4140). A track rod (4180) is fixed on the side of the housing (450) near the pressure rod (4160), and a balance roller (4170) is movably assembled inside the track rod (4180). The two-section hydraulic rod (4113) consists of two rods that are hinged together and a torsion spring is provided at the hinge. A spring is fixed between the two-section hydraulic rod (4113) and the inner wall of the second hydraulic chamber (4111).

2. The rock core sampling device for geotechnical engineering investigation according to claim 1, characterized in that, The top of the metal housing (410) is provided with a dustproof reset assembly (600). The dustproof reset assembly (600) includes a reset rod (490). The reset rod (490) is fixed on the first metal slider (480). A sealing block (610) is slidably connected to the outside of the reset rod (490). A bellows-style sealing membrane (620) is connected to both sides of the sealing block (610).

3. A rock core sampling device for geotechnical engineering investigation according to claim 2, characterized in that, A rectangular groove is provided in the top plate of the metal box (410), the reset rod (490) is located in the rectangular groove, and the sealing block (610) and the accordion-style sealing membrane (620) connected to its two sides seal the top of the rectangular groove.

4. A rock core sampling device for geotechnical engineering investigation according to claim 1, characterized in that, The side of the metal box (410) is equipped with a weight-increasing component (500). The weight-increasing component (500) includes a second metal slider (510) slidably connected to a slide rail (470), a third positioning rod (540) slidably connected to the side wall of the metal box (410) by a spring, and a positioning block (520) fixed to the outside of the metal box (410). An arc-shaped plate (530) is slidably connected to the inside of the positioning block (520).

5. A rock core sampling device for geotechnical engineering investigation according to claim 4, characterized in that, The second metal slider (510) has two circular grooves on the side near the first metal slider (480), and each circular groove is equipped with an elastic support rod (560). The second metal slider (510) has a groove (550) on the side near the third positioning rod (540).

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