An adjustable sample drilling device for testing engineering materials

Abstract

This invention discloses an adjustable sample drilling device for engineering material testing, relating to the technical field of drilling and sampling equipment. It includes a support base, with a height adjustment mechanism at its upper end, an angle adjustment mechanism above the height adjustment mechanism, a sampling propulsion mechanism to the right of the angle adjustment mechanism, and a sampling mechanism to the right of the sampling propulsion mechanism. The sampling mechanism includes a sampling mounting plate and a sampling motor, with a material ejection auxiliary mechanism between the sampling mounting plate and the sampling cylinder. The coordinated action of the angle and height adjustment mechanisms enables flexible angle switching between vertical and horizontal directions for the sampling mechanism, suitable for both horizontal sampling on the ground and vertical sampling on walls. Simultaneously, the material ejection auxiliary mechanism cuts the sample after drilling, ensuring the sample remains stable within the sampling cylinder under the action of the material ejection auxiliary mechanism. The sample can be extracted with the sampling cylinder and pushed out of the sampling cylinder by an auxiliary electric push rod and connecting spring.

Description

Technical Field

[0001] This invention relates to the field of drilling and sampling equipment technology, and in particular to an adjustable sample drilling device for testing engineering materials. Background Technology

[0002] In the field of engineering materials testing, it is often necessary to drill samples of building materials such as concrete, asphalt, and rock in order to conduct subsequent performance analysis such as strength and density.

[0003] Traditional drilling sampling equipment has limited functionality, typically only allowing sampling at a fixed angle. For different working surfaces such as walls and floors, different equipment or re-clamping is often required, resulting in poor adaptability. Most existing drilling sampling devices consist of a simple combination of a drilling motor and a sampling drill barrel, leading to a simplistic structure. After sampling, the sample is easily stuck inside the drill barrel or the engineering material, making it difficult to remove quickly and completely, affecting testing efficiency, and potentially damaging the original structure of the sample. Therefore, this application proposes an adjustable sample drilling device for engineering material testing. Summary of the Invention

[0004] The purpose of this invention is to provide an adjustable sample drilling device for testing engineering materials, which solves the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an adjustable sample drilling device for testing engineering materials, comprising a support base, an opening at the right end of the support base, a plurality of auxiliary stabilizing rods at both the front and rear ends of the support base, a height adjustment mechanism at the upper end of the support base, an angle adjustment mechanism at the upper end of the height adjustment mechanism, a sampling and pushing mechanism at the right side of the angle adjustment mechanism, and a sampling mechanism at the right side of the sampling and pushing mechanism. The sampling mechanism includes a sampling mounting plate, with a sampling motor fixedly connected to the upper end of the sampling mounting plate. The output end of the sampling motor passes through the sampling mounting plate and is fixedly connected to a rotating rod. A sampling cylinder is fixedly connected to the lower end of the rotating rod, and a sampling drill bit is fixedly connected to the lower end of the sampling cylinder. The sampling drill bit is annular, and the outer diameter of the sampling cylinder is the same as the outer diameter of the sampling drill bit. The inner diameter of the sampling cylinder is larger than the inner diameter of the sampling drill bit. A material ejection auxiliary mechanism is provided between the sampling mounting plate and the sampling cylinder.

[0006] Preferably, the material ejection auxiliary mechanism includes a limiting ring sleeved on the rotating rod. Two auxiliary electric push rods distributed on the left and right sides of the rotating rod are fixedly connected to the lower end of the sampling mounting plate. The output end of the auxiliary electric push rod is fixedly connected to the upper end of the limiting ring. A limiting groove 1 and a limiting groove 2 are provided at the lower end of the limiting ring. An auxiliary material breaking chamber is provided on the side wall of the sampling cylinder. A limiting slider 1 is slidably connected within the limiting groove 1. An auxiliary moving plate is fixedly connected to the lower end of the limiting slider through the limiting groove 1. The lower end of the auxiliary moving plate penetrates the upper side wall of the auxiliary material breaking chamber and extends into the auxiliary material breaking chamber. A material breaking push plate is provided inside the auxiliary material breaking chamber. A stop rod is fixedly connected to the end of the material breaking push plate away from the auxiliary moving plate. The end of the stop rod away from the material breaking push plate penetrates the side wall of the auxiliary material breaking chamber and extends into the sampling cylinder.

[0007] Preferably, a plurality of auxiliary material cutting blocks 1 are fixedly connected to one end of the auxiliary moving plate near the material cutting push plate, and a plurality of auxiliary material cutting blocks 2 are fixedly connected to one end of the material cutting push plate near the auxiliary moving plate. The upper end of the auxiliary material cutting block 1 near the side wall of the material cutting push plate is inclined to the side away from the material cutting push plate, and the upper end of the auxiliary material cutting block 2 near the side wall of the auxiliary moving plate is inclined to the side away from the material cutting push plate.

[0008] Preferably, a plurality of return springs are provided on both the front and rear sides of the abutment rod, and the left and right ends of the return springs are fixedly connected to the right end of the material cutting push plate and the right inner wall of the auxiliary material cutting cavity, respectively.

[0009] Preferably, a plurality of limiting sliders are slidably connected within the limiting groove 2. The lower end of each limiting slider passes through the limiting groove 2 and is fixedly connected to an auxiliary push rod. The lower end of the auxiliary push rod passes through the upper sidewall of the sampling cylinder and extends into the sampling cylinder. A sliding plate 1 and a sliding plate 2 are slidably connected within the sampling cylinder. A limiting groove is formed on the inner sidewall of the sampling cylinder. Anti-interference notches are provided on the side of the sliding plate 1 and the sliding plate 2 near the auxiliary material cutting cavity. The outer ends of the sliding plate 1 and the sliding plate 2 are slidably connected to the limiting groove. A connecting spring is fixedly connected to the upper end of the sliding plate 2, and the upper end of the connecting spring is fixedly connected to the lower end of the sliding plate.

[0010] Preferably, the sampling and propulsion mechanism includes a propulsion frame, a propulsion plate slidably connected inside the propulsion frame, a propulsion motor fixedly connected to the upper end of the propulsion frame, an output end of the propulsion motor penetrating the upper side wall of the propulsion frame and fixedly connected to a propulsion screw, the lower end of the propulsion screw penetrating the propulsion plate and rotatably connected to the lower inner wall of the propulsion frame, the propulsion screw being threadedly connected to the propulsion plate, and a limiting slide rod fixedly connected to the upper inner wall of the propulsion frame, the lower end of the limiting slide rod penetrating the propulsion plate and fixedly connected to the lower inner wall of the propulsion frame. The angle adjustment mechanism includes symmetrically arranged angle adjustment side plates at the front and rear. The rear end of the push frame is rotatably connected to the rear angle adjustment side plate. An angle adjustment rod is fixedly connected to the front end of the push frame. The front end of the angle adjustment rod passes through the front angle adjustment side plate and extends to the front side of the front angle adjustment side plate. The height adjustment mechanism includes a support plate, and both angle adjustment side plates are fixed on the support plate.

[0011] Preferably, a U-shaped abutment buffer frame is fixedly connected to the right end of the push plate, and at least two sliding rods are fixedly connected to the upper inner wall of the abutment buffer frame. The lower end of the sliding rod passes through the sampling mounting plate and is fixedly connected to the lower inner wall of the abutment buffer frame. A buffer spring is sleeved on the sliding rod, and the upper and lower ends of the buffer spring are fixedly connected to the upper inner wall of the abutment buffer frame and the upper end of the sampling mounting plate, respectively.

[0012] Preferably, both angle adjustment side plates are provided with arc-shaped limiting slides, and limiting rods are fixedly connected to both ends of the propulsion outer frame. The end of the limiting rod away from the propulsion outer frame extends into the limiting slide. An adjusting worm gear is fixedly connected to the front end of the angle adjustment rod, and a protective frame is fixedly connected to the front angle adjustment side plate. The adjusting worm gear is located inside the protective frame, and an adjusting worm is rotatably connected to the lower inner wall of the protective frame. The upper end of the adjusting worm penetrates the upper side wall of the protective frame and is connected to an adjusting handle. The adjusting worm is adapted to the adjusting worm gear.

[0013] Preferably, the height adjustment mechanism further includes a height adjustment outer cylinder fixed on the support base, a height adjustment column slidably connected inside the height adjustment outer cylinder, the upper end of the height adjustment column being fixedly connected to the lower end of the support plate, a height adjustment internal threaded hole penetrating both ends being opened at the central axis position of the height adjustment column, a height adjustment motor being installed inside the height adjustment outer cylinder, a height adjustment lead screw being fixedly connected to the output end of the height adjustment motor, the height adjustment lead screw extending into the height adjustment internal threaded hole, and the height adjustment lead screw being threadedly connected to the height adjustment internal threaded hole.

[0014] Preferably, a contact pad is fixedly connected to the right end of the height-adjusting outer cylinder, and the contact pad is located on the left side of the propulsion outer frame.

[0015] Compared with related technologies, the adjustable sample drilling device for testing engineering materials provided by this invention has the following advantages: This invention provides an adjustable sample drilling device for engineering material testing. A material ejection auxiliary mechanism is provided between the sampling mounting plate and the sampling cylinder. After drilling and sampling using a sampling motor that drives the sampling cylinder, the sampling motor pauses. An auxiliary electric push rod, a limiting ring, an auxiliary moving plate, and a cutting push plate work together to cut the sample. Under the action of the auxiliary electric push rod, the limiting ring and the auxiliary moving plate move upwards. With the cooperation of auxiliary cutting blocks one and two, the cutting push plate and the abutment rod move towards the sample, applying a lateral force to the sample, thus cutting it. Simultaneously, the other side wall of the sample abuts against the inner wall of the sampling cylinder, facilitating simultaneous removal of the sample and the sampling cylinder. During sample removal, the auxiliary electric push rod pushes the limiting ring, the auxiliary moving plate, and the auxiliary push rod downwards. As auxiliary cutting blocks one and two separate, a reset spring pushes the cutting push plate back to its original position, thus releasing the clamping effect on the sample. Simultaneously, the sample is ejected under the action of a connecting spring.

[0016] This invention provides an adjustable sample drilling device for testing engineering materials. Through the coordinated action of the angle adjustment mechanism and the height adjustment mechanism, this device can achieve flexible angle switching between the vertical and horizontal directions of the sampling mechanism. It is suitable for both horizontal sampling on the ground and vertical sampling on the wall, without the need to change equipment, which significantly improves the versatility of the applicable scenarios.

[0017] This invention provides an adjustable sample drilling device for engineering material testing. The device achieves angle adjustment of the sampling and propulsion mechanisms and the sampling mechanism through the cooperation of an adjusting worm gear and an adjusting worm wheel. It features a compact structure, effortless adjustment, and a self-locking characteristic, maintaining a stable angle at any point and preventing angle deviation due to vibration during operation. A buffer spring and sliding rod are provided between the propulsion plate and the sampling mounting plate to provide elastic cushioning when the sampling drill bit contacts the material surface, preventing rigid impact from causing sample cracking or drill bit damage. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the angle adjustment mechanism of the present invention; Figure 3 This is a cross-sectional three-dimensional structural diagram of the height adjustment mechanism of the present invention; Figure 4 This is a schematic diagram showing the positional relationship between the sampling propulsion mechanism and the sampling mechanism of the present invention; Figure 5 For the present invention Figure 4 Enlarged view of a portion of point A in the middle; Figure 6 This is a three-dimensional structural diagram of the sampling mechanism of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of a section at point B in the middle; Figure 8 This is a schematic diagram of the three-dimensional structure of the sampling cylinder in cross-section of the present invention; Figure 9 For the present invention Figure 8 Enlarged view of a section at point C; Figure 10 This is a three-dimensional structural diagram of the material cutting pusher position of the present invention; Figure 11 For the present invention Figure 10 Enlarged view of a section at point D; Figure 12 A three-dimensional structural diagram showing the position of the auxiliary push rod of the present invention; Figure 13 This is a three-dimensional structural diagram of the sampling cylinder location cross-section of the present invention; Figure 14 For the present invention Figure 13 Enlarged view of a section at point E in the middle.

[0019] In the diagram: 1. Support base; 2. Height adjustment mechanism; 201. Height adjustment outer cylinder; 202. Height adjustment motor; 203. Height adjustment lead screw; 204. Height adjustment column; 205. Height adjustment internal thread hole; 206. Support plate; 3. Angle adjustment mechanism; 301. Angle adjustment side plate; 302. Limit slide; 303. Limit rod; 304. Protective frame; 305. Angle adjustment rod; 306. Adjusting worm gear; 307. Adjusting worm; 308. Adjusting handle; 4. Sampling and pushing mechanism; 401. Pushing outer frame; 402. Pushing motor; 403. Pushing lead screw; 404. Limit slide; 405. Pushing plate; 406. Abutment buffer frame; 5. Sampling mechanism; 501. Sampling mounting plate; 502. Sliding rod; 503. Buffer spring; 504. Sampling motor; 505. Rotating rod; 506. Sampling cylinder; 507. Sampling drill bit; 6. Contact pad; 7. Material ejection auxiliary mechanism; 701. Auxiliary electric push rod; 702. Limiting ring; 703. Limiting slide groove one; 704. Limiting slide groove two; 705. Limiting slider one; 706. Auxiliary moving plate; 707. Limiting slider two; 708. Auxiliary push rod; 709. Sliding plate one; 710. Connecting spring; 711. Sliding plate two; 712. Limiting groove; 713. Auxiliary material cutting chamber; 714. Material cutting push plate; 715. Abutment rod; 716. Reset spring; 717. Auxiliary material cutting block one; 718. Auxiliary material cutting block two; 8. Auxiliary stabilizing rod. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] Example 1: Please see Figure 1 - Figure 6 The present invention provides a technical solution: an adjustable sample drilling device for testing engineering materials, including a support base 1, an opening at the right end of the support base 1, and a plurality of auxiliary stabilizing rods 8 at both the front and rear ends of the support base 1. The auxiliary stabilizing rods 8 are used to ensure the overall stability of the device during drilling operations and prevent shaking. A height adjustment mechanism 2 is provided at the upper end of the support base 1, an angle adjustment mechanism 3 is provided at the upper end of the height adjustment mechanism 2, a sampling and propulsion mechanism 4 is provided on the right side of the angle adjustment mechanism 3, and a sampling mechanism 5 is provided on the right side of the sampling and propulsion mechanism 4. The sampling mechanism 5 is used for cutting and sampling operations. The sampling motor 504 drives the sampling drill 507 to rotate and cut into the material to obtain a columnar sample. The sampling mechanism 5 includes a sampling mounting plate 501. The sampling motor 504 is fixedly connected to the upper end of the sampling mounting plate 501. The output end of the sampling motor 504 passes through the sampling mounting plate 501 and is fixedly connected to a rotating rod 505. The lower end of the rotating rod 505 is fixedly connected to a sampling cylinder 506. The lower end of the sampling cylinder 506 is fixedly connected to a sampling drill 507. The sampling drill 507 is annular. The outer diameter of the sampling cylinder 506 is the same as the outer diameter of the sampling drill 507. The inner diameter of the sampling cylinder 506 is larger than the inner diameter of the sampling drill 507. The size design ensures that after sampling, there is enough operating space in the sampling cylinder 506 for cutting the sample, and it is also easier to remove the sample. A material ejection auxiliary mechanism 7 is provided between the sampling mounting plate 501 and the sampling cylinder 506. The sampling propulsion mechanism 4 is used to drive the sampling mechanism 5 to feed smoothly. The sampling propulsion mechanism 4 includes a propulsion outer frame 401, a propulsion plate 405 slidably connected inside the propulsion outer frame 401, a propulsion motor 402 fixedly connected to the upper end of the propulsion outer frame 401, the output end of the propulsion motor 402 passing through the upper side wall of the propulsion outer frame 401 and fixedly connected to a propulsion screw 403, the lower end of the propulsion screw 403 passing through the propulsion plate 405 and rotatably connected to the lower inner wall of the propulsion outer frame 401, and the propulsion screw 403 threadedly connected to the propulsion plate 405. With the cooperation of the propulsion motor 402, the propulsion screw 403 and the propulsion plate 405, the overall feeding and retraction of the sampling mechanism 5 is realized. A limit slide rod 404 is fixedly connected to the upper inner wall of the propulsion outer frame 401, the lower end of the limit slide rod 404 passing through the propulsion plate 405 and rotatably connected to the lower inner wall of the propulsion outer frame 401. The inner side wall is fixedly connected to a U-shaped abutment buffer frame 406, which is fixedly connected to the right side end of the push plate 405. At least two sliding rods 502 are fixedly connected to the upper inner wall of the abutment buffer frame 406. The lower end of the sliding rod 502 passes through the sampling mounting plate 501 and is fixedly connected to the lower inner wall of the abutment buffer frame 406. A buffer spring 503 is sleeved on the sliding rod 502. The upper and lower ends of the buffer spring 503 are fixedly connected to the upper inner wall of the abutment buffer frame 406 and the upper end of the sampling mounting plate 501, respectively. The design of the U-shaped abutment buffer frame 406 can provide elastic buffer when the sampling cylinder 506 contacts the sampling position. When the sampling drill bit 507 abuts against the material surface, the sampling mounting plate 501 compresses the buffer spring 503 upward along the sliding rod 502 to absorb the instantaneous impact force and prevent the sampling drill bit 507 from chipping due to rigid collision. Angle adjustment mechanism 3 is used to switch the attitude of sampling mechanism 5 between horizontal and vertical directions, so that the same device can perform vertical sampling on the ground and horizontal sampling on the wall. Angle adjustment mechanism 3 includes symmetrically arranged angle adjustment side plates 301 at the front and rear. The rear end of the push frame 401 is rotatably connected to the rear angle adjustment side plate 301. An angle adjustment rod 305 is fixedly connected to the front end of the push frame 401. The front end of the angle adjustment rod 305 passes through the front angle adjustment side plate 301 and extends to the front side of the front angle adjustment side plate 301. Both angle adjustment side plates 301 are provided with arc-shaped limiting slides 302. Limiting rods 303 are fixedly connected to both the front and rear ends of the push frame 401. The limiting rods 303 are away from the push frame 401. One end of 01 extends into the limiting slide 302. An adjusting worm gear 306 is fixedly connected to the front end of the angle adjusting rod 305. A protective frame 304 is fixedly connected to the front angle adjusting side plate 301. The adjusting worm gear 306 is located inside the protective frame 304. An adjusting worm 307 is rotatably connected to the lower inner wall of the protective frame 304. The upper end of the adjusting worm 307 passes through the upper side wall of the protective frame 304 and is connected to an adjusting handle 308. The adjusting worm 307 and the adjusting worm gear 306 are adapted to each other. When adjusting the sampling position, the adjusting handle 308 is rotated. The adjusting worm 307 and the adjusting worm gear 306 work together to drive the sampling propulsion mechanism 4 and the sampling mechanism 5 to adjust the angle. The sampling mechanism 5 stops when the lower end of the sampling cylinder 506 in the sampling mechanism 5 points to the sampling position. The height adjustment mechanism 2 includes a support plate 206, and two angle adjustment side plates 301 are fixed on the support plate 206. The height adjustment mechanism 2 also includes a height adjustment outer cylinder 201 fixed on the support base 1. A height adjustment column 204 is slidably connected inside the height adjustment outer cylinder 201. The upper end of the height adjustment column 204 is fixedly connected to the lower end of the support plate 206. A height adjustment internal threaded hole 205 is provided at the central axis position of the height adjustment column 204, penetrating both ends. A height adjustment motor 202 is installed inside the height adjustment outer cylinder 201. The output end is fixedly connected to a height adjustment screw 203, which extends into the height adjustment internal threaded hole 205. The height adjustment screw 203 is threadedly connected to the height adjustment internal threaded hole 205. The height adjustment screw 203 is driven to rotate by the height adjustment motor 202. The height adjustment screw 203 and the height adjustment internal threaded hole 205 work together to make the height adjustment column 204 rise and fall smoothly along the inner wall of the height adjustment outer cylinder 201. Compared with manual adjustment, it is more labor-saving and more accurate in positioning. At the same time, the screw thread has self-locking properties, which can maintain the current height and prevent it from falling after the power is cut off. A contact pad 6 is fixedly connected to the right end of the height-adjustable outer cylinder 201. The contact pad 6 is located on the left side of the push outer frame 401. When the angle is adjusted to the vertical position, it prevents hard collision between the push outer frame 401 and the height-adjustable outer cylinder 201, and at the same time plays a role in buffering and shock absorption.

[0022] Example 2: Please see Figure 7 - Figure 14 As shown, based on Embodiment 1, the present invention provides a technical solution: the material ejection auxiliary mechanism 7 includes a limiting ring 702 sleeved on the rotating rod 505, two auxiliary electric push rods 701 distributed on the left and right sides of the rotating rod 505 are fixedly connected to the lower end of the sampling mounting plate 501, the output end of the auxiliary electric push rod 701 is fixedly connected to the upper end of the limiting ring 702, the lower end of the limiting ring 702 is provided with a limiting groove 1 703 and a limiting groove 2 704, an auxiliary material cutting cavity 713 is provided on the side wall of the sampling cylinder 506, and the limiting groove 1 703 slides inside the cavity. A limit slider 705 is dynamically connected. The lower end of the limit slider 705 passes through the limit groove 703 and is fixedly connected to an auxiliary moving plate 706. The lower end of the auxiliary moving plate 706 passes through the upper side wall of the auxiliary material breaking cavity 713 and extends into the auxiliary material breaking cavity 713. A material breaking push plate 714 is provided in the auxiliary material breaking cavity 713. An abutment rod 715 is fixedly connected to the end of the material breaking push plate 714 away from the auxiliary moving plate 706. The end of the abutment rod 715 away from the material breaking push plate 714 passes through the side wall of the auxiliary material breaking cavity 713 and extends into the sampling cylinder 506. A plurality of auxiliary material cutting blocks 717 are fixedly connected to one end of the auxiliary moving plate 706 near the material cutting push plate 714, and a plurality of auxiliary material cutting blocks 718 are fixedly connected to one end of the material cutting push plate 714 near the auxiliary moving plate 706. The upper end of the auxiliary material cutting block 717 near the side wall of the material cutting push plate 714 is inclined away from the material cutting push plate 714, and the upper end of the auxiliary material cutting block 718 near the side wall of the auxiliary moving plate 706 is inclined away from the material cutting push plate 714. After drilling and sampling are completed, the sampling motor 5 04 Pause, the auxiliary electric push rod 701 pulls the limit ring 702 and the auxiliary moving plate 706 to move upward. When the auxiliary material cutting block 1 717 and the auxiliary material cutting block 2 718 cooperate to push the material cutting push plate 714 and the abutment rod 715 to move towards the sample and apply a lateral force to the sample, thereby realizing the cutting of the sample. At the same time, the abutment rod 715 applies lateral pressure to the sample from one side and also presses the sample tightly against the inner wall of the sampling cylinder 506 on the other side. The cutting sample can be taken out synchronously with the sampling cylinder 506 by relying on friction. Several return springs 716 are provided on both the front and rear sides of the abutment rod 715. The left and right ends of the return springs 716 are fixedly connected to the right end of the material breaking push plate 714 and the right inner wall of the auxiliary material breaking cavity 713, respectively. After the sampling cylinder 506 is completely pulled out, the auxiliary electric push rod 701 drives the limit ring 702 to move downward. As the auxiliary material breaking block 1 717 and the auxiliary material breaking block 2 718 separate, the return springs 716 push the material breaking push plate 714 to reset, thereby canceling the clamping effect on the sample. At the same time, the sample is pushed out under the force of the connecting spring 710 when it is reset. Several limiting sliders 707 are slidably connected within the limiting groove 704. The lower ends of the limiting sliders 707 pass through the limiting groove 704 and are fixedly connected to an auxiliary push rod 708. The lower ends of the auxiliary push rod 708 pass through the upper sidewall of the sampling cylinder 506 and extend into the sampling cylinder 506. Sliding plates 709 and 711 are slidably connected within the sampling cylinder 506. A limiting groove 712 is provided on the inner sidewall of the sampling cylinder 506. Anti-interference notches are provided on the side of sliding plates 709 and 711 near the auxiliary material cutting cavity 713. The outer ends of sliding plates 709 and 711 slide with the limiting groove 712. The upper end of the sliding plate 2 711 is fixedly connected to a connecting spring 710, and the upper end of the connecting spring 710 is fixedly connected to the lower end of the sliding plate 1 709. During the sampling process, the upper end of the sample pushes the sliding plate 2 711 and the sliding plate 1 709 upward in the sampling cylinder 506 and compresses the connecting spring 710. When the auxiliary electric push rod 701 drives the auxiliary moving plate 706 downward, it drives the auxiliary push rod 708 downward through the limiting ring 702. The auxiliary push rod 708 applies a downward pushing force to the sliding plate 1 709. Under the action of the auxiliary push rod 708 and the connecting spring 710, the sample is pushed out of the sampling cylinder 506.

[0023] Working principle: In use, move the device to the designated position and rotate the adjusting handle 308. The adjusting worm 307 and adjusting worm wheel 306 work together to drive the sampling propulsion mechanism 4 and the sampling mechanism 5 to adjust their angles. When the lower end of the sampling cylinder 506 in the sampling mechanism 5 points to the sampling position, pause. When performing the sampling operation, turn on the sampling motor 504. The sampling motor 504 drives the rotating rod 505 and the sampling cylinder 506 to rotate. At the same time, the limiting slider 705 at the upper end of the auxiliary moving plate 706 and the upper end of the auxiliary push rod 708... Limiting slider 2 707 moves within limiting slide groove 1 703 and limiting slide groove 2 704 respectively; the propulsion motor 402 drives the propulsion screw 403 to rotate, and under the action of the propulsion screw 403 and the propulsion plate 405, the sampling mechanism 5 moves to the designated position. When the sampling cylinder 506 at the lower end of the sampling mechanism 5 contacts the sampling position, the buffer spring 503 prevents the sampling drill bit 507 from rigidly colliding with the sampling position, and at the same time, the buffer frame 406 provides a certain buffer space for the propulsion of the propulsion motor 402. After sampling is completed, the upper end of the sample contacts the lower end of the sliding plate 711. At this time, the upper end of the sliding plate 709 abuts against the upper inner wall of the sampling cylinder 506, the connecting spring 710 is in a compressed state, the sampling motor 504 and the propulsion motor 402 are paused, and the auxiliary electric push rod 701 pulls the limit ring 702 and the auxiliary moving plate 706 to move upward. When the auxiliary cutting block 717 and the auxiliary cutting block 718 cooperate to push the cutting push plate 714 and the abutment rod 715 to move towards the sample, a lateral force is applied to the sample, thereby cutting the sample. At the same time, the abutment rod 715 applies lateral pressure to the sample from one side, pressing the sample tightly against the sampling cylinder. On the other inner wall of 506, friction allows the cut sample to be taken out synchronously with the sampling cylinder 506. When the sample is taken out, the push motor 402 drives the push screw 403 to rotate in the opposite direction. With the cooperation of the push screw 403 and the push plate 405, the sampling mechanism 5 is pulled out upward. After the sampling cylinder 506 is completely pulled out, the auxiliary electric push rod 701 drives the limit ring 702 to move downward. As the auxiliary cutting block 1 717 and the auxiliary cutting block 2 718 separate, the reset spring 716 pushes the cutting push plate 714 to reset, thereby canceling the clamping effect on the sample. At the same time, the sample is pushed out under the force of the resetting connecting spring 710. When sampling is required on the wall, the adjusting handle 308 is rotated, which drives the adjusting worm gear 307 to rotate. With the cooperation of the adjusting worm gear 307 and the adjusting worm wheel 306, the sampling propulsion mechanism 4 and the sampling mechanism 5 are adjusted in angle. When the sampling propulsion mechanism 4 and the sampling mechanism 5 are in a horizontal state, the sampling propulsion mechanism 4 is used to push the sampling mechanism 5, thereby enabling the sampling mechanism 5 to perform sampling on the wall. At the same time, the height adjustment mechanism 2 can adjust the height of the sampling position. During adjustment, the height adjustment motor 202 drives the height adjustment screw 203 to rotate. With the cooperation of the height adjustment screw 203 and the height adjustment internal thread hole 205, the height of the sampling mechanism 5 is adjusted.

[0024] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable sample drilling device for testing engineering materials, characterized in that: Includes a support base (1), with an opening at the right end of the support base (1), and several auxiliary stabilizing rods (8) at both the front and rear ends of the support base (1). A height adjustment mechanism (2) is provided at the upper end of the support base (1), and an angle adjustment mechanism (3) is provided at the upper end of the height adjustment mechanism (2). A sampling and pushing mechanism (4) is provided on the right side of the angle adjustment mechanism (3), and a sampling mechanism (5) is provided on the right side of the sampling and pushing mechanism (4). The sampling mechanism (5) includes a sampling mounting plate (501), a sampling motor (504) is fixedly connected to the upper end of the sampling mounting plate (501), the output end of the sampling motor (504) passes through the sampling mounting plate (501) and is fixedly connected to a rotating rod (505), a sampling cylinder (506) is fixedly connected to the lower end of the rotating rod (505), a sampling drill bit (507) is fixedly connected to the lower end of the sampling cylinder (506), the sampling drill bit (507) is annular, the outer diameter of the sampling cylinder (506) is the same as the outer diameter of the sampling drill bit (507), the inner diameter of the sampling cylinder (506) is larger than the inner diameter of the sampling drill bit (507), and a material ejection auxiliary mechanism (7) is provided between the sampling mounting plate (501) and the sampling cylinder (506).

2. The adjustable sample drilling device for testing engineering materials according to claim 1, characterized in that: The material ejection auxiliary mechanism (7) includes a limiting ring (702) sleeved on the rotating rod (505). The lower end of the sampling mounting plate (501) is fixedly connected to two auxiliary electric push rods (701) distributed on the left and right sides of the rotating rod (505). The output end of the auxiliary electric push rod (701) is fixedly connected to the upper end of the limiting ring (702). The lower end of the limiting ring (702) is provided with a limiting groove one (703) and a limiting groove two (704). An auxiliary material cutting cavity (713) is provided on the side wall of the sampling cylinder (506). A limiting slider one (705) is slidably connected in the limiting groove one (703). The lower end of the limiting slider (705) passes through the limiting groove (703) and is fixedly connected to the auxiliary moving plate (706). The lower end of the auxiliary moving plate (706) passes through the upper side wall of the auxiliary material breaking cavity (713) and extends into the auxiliary material breaking cavity (713). A material breaking push plate (714) is provided in the auxiliary material breaking cavity (713). A stop rod (715) is fixedly connected to one end of the material breaking push plate (714) away from the auxiliary moving plate (706). The end of the stop rod (715) away from the material breaking push plate (714) passes through the side wall of the auxiliary material breaking cavity (713) and extends into the sampling cylinder (506).

3. The adjustable sample drilling device for testing engineering materials according to claim 2, characterized in that: The auxiliary moving plate (706) is fixedly connected to a plurality of auxiliary material cutting blocks (717) at one end near the material cutting push plate (714), and the material cutting push plate (714) is fixedly connected to a plurality of auxiliary material cutting blocks (718) at one end near the auxiliary moving plate (706). The upper end of the auxiliary material cutting block (717) near the side wall of the material cutting push plate (714) is inclined to the side away from the material cutting push plate (714), and the upper end of the auxiliary material cutting block (718) near the side wall of the auxiliary moving plate (706) is inclined to the side away from the material cutting push plate (714).

4. The adjustable sample drilling device for testing engineering materials according to claim 2, characterized in that: Several return springs (716) are provided on both the front and rear sides of the abutment rod (715). The left and right ends of the return springs (716) are fixedly connected to the right end of the material cutting push plate (714) and the right inner wall of the auxiliary material cutting cavity (713), respectively.

5. The adjustable sample drilling device for testing engineering materials according to claim 2, characterized in that: A plurality of limiting sliders 2 (707) are slidably connected within the limiting groove 2 (704). The lower ends of the limiting sliders 2 (707) pass through the limiting groove 2 (704) and are fixedly connected to an auxiliary push rod (708). The lower ends of the auxiliary push rod (708) penetrate the upper side wall of the sampling cylinder (506) and extend into the sampling cylinder (506). Sliding plates 1 (709) and 2 (711) are slidably connected within the sampling cylinder (506). 6) A limiting groove (712) is provided on the inner side wall. The sliding plate one (709) and the sliding plate two (711) are provided with anti-interference notches on the side near the auxiliary material cutting cavity (713). The outer ends of the sliding plate one (709) and the sliding plate two (711) are slidably connected to the limiting groove (712). A connecting spring (710) is fixedly connected to the upper end of the sliding plate two (711). The upper end of the connecting spring (710) is fixedly connected to the lower end of the sliding plate one (709).

6. The adjustable sample drilling device for testing engineering materials according to claim 1, characterized in that: The sampling and propulsion mechanism (4) includes a propulsion frame (401), a propulsion plate (405) is slidably connected inside the propulsion frame (401), a propulsion motor (402) is fixedly connected to the upper end of the propulsion frame (401), the output end of the propulsion motor (402) passes through the upper side wall of the propulsion frame (401) and is fixedly connected to a propulsion screw (403), the lower end of the propulsion screw (403) passes through the propulsion plate (405) and is rotatably connected to the lower inner wall of the propulsion frame (401), the propulsion screw (403) is threadedly connected to the propulsion plate (405), a limiting slide rod (404) is fixedly connected to the upper inner wall of the propulsion frame (401), the lower end of the limiting slide rod (404) passes through the propulsion plate (405) and is fixedly connected to the lower inner wall of the propulsion frame (401); The angle adjustment mechanism (3) includes angle adjustment side plates (301) symmetrically arranged at the front and rear. The rear end of the push frame (401) is rotatably connected to the rear angle adjustment side plate (301). An angle adjustment rod (305) is fixedly connected to the front end of the push frame (401). The front end of the angle adjustment rod (305) passes through the front angle adjustment side plate (301) and extends to the front side of the front angle adjustment side plate (301). The height adjustment mechanism (2) includes a support plate (206), and the two angle adjustment side plates (301) are fixed on the support plate (206).

7. The adjustable sample drilling device for testing engineering materials according to claim 6, characterized in that: A U-shaped abutment buffer frame (406) is fixedly connected to the right end of the push plate (405). At least two sliding rods (502) are fixedly connected to the upper inner wall of the abutment buffer frame (406). The lower end of the sliding rod (502) passes through the sampling mounting plate (501) and is fixedly connected to the lower inner wall of the abutment buffer frame (406). A buffer spring (503) is sleeved on the sliding rod (502). The upper and lower ends of the buffer spring (503) are fixedly connected to the upper inner wall of the abutment buffer frame (406) and the upper end of the sampling mounting plate (501), respectively.

8. The adjustable sample drilling device for testing engineering materials according to claim 6, characterized in that: Both angle adjustment side plates (301) are provided with arc-shaped limiting slides (302). Limiting rods (303) are fixedly connected to both the front and rear ends of the propulsion outer frame (401). The end of the limiting rod (303) away from the propulsion outer frame (401) extends into the limiting slide (302). An adjusting worm gear (306) is fixedly connected to the front end of the angle adjustment rod (305). A protective frame (304) is fixedly connected to the front angle adjustment side plate (301). The adjusting worm gear (306) is located inside the protective frame (304). An adjusting worm (307) is rotatably connected to the lower inner wall of the protective frame (304). The upper end of the adjusting worm (307) passes through the upper side wall of the protective frame (304) and is connected to an adjusting handle (308). The adjusting worm (307) is adapted to the adjusting worm gear (306).

9. An adjustable sample drilling device for testing engineering materials according to claim 6, characterized in that: The height adjustment mechanism (2) further includes a height adjustment outer cylinder (201) fixed on the support base (1). A height adjustment column (204) is slidably connected inside the height adjustment outer cylinder (201). The upper end of the height adjustment column (204) is fixedly connected to the lower end of the support plate (206). A height adjustment internal thread hole (205) is opened at the central axis position of the height adjustment column (204) with both ends passing through. A height adjustment motor (202) is provided inside the height adjustment outer cylinder (201). A height adjustment screw (203) is fixedly connected to the output end of the height adjustment motor (202). The height adjustment screw (203) extends into the height adjustment internal thread hole (205). The height adjustment screw (203) is threadedly connected to the height adjustment internal thread hole (205).

10. An adjustable sample drilling device for testing engineering materials according to claim 9, characterized in that: The right end of the height-adjustable outer cylinder (201) is fixedly connected to a contact pad (6), which is located on the left side of the push-out outer frame (401).

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