A sampling device for recycled concrete production

Abstract

The utility model discloses a kind of sampling devices for recycled concrete production, it is related to concrete sampling technical field, aiming at the problem of inaccurate sampling position in prior art and the process of taking out is more complicated, low efficiency, the following scheme is presented, including fixed pipe, the bottom of the fixed pipe is welded and fixed with conical block, and the inner wall of both ends in fixed pipe is welded and fixed with fixed frame, connecting pipe is fixedly connected between two fixed frames, and connecting pipe is inserted and slidably connected with connecting rod, and the outer wall of connecting pipe is slidably sleeved with equidistantly distributed sampling mechanism. The utility model can play a good guiding and positioning role when inserting recycled concrete pile by welding and fixing conical block at the bottom of fixed pipe, ensure that fixed pipe is accurately inserted into predetermined position, so as to obtain representative sample, greatly improve the accuracy of sampling position, and provide guarantee for subsequent accurate evaluation of recycled concrete quality.

Description

Technical Field

[0001] This utility model relates to the field of concrete sampling technology, and in particular to a sampling device for the production of recycled concrete. Background Technology

[0002] Recycled concrete is made by crushing, washing, and grading waste concrete blocks, then mixing them with aggregates in a certain proportion to partially or completely replace natural aggregates (mainly coarse aggregates), and finally adding cement, water, and other ingredients to create new concrete. During the production of recycled concrete, to ensure product quality, samples of the raw materials used in production must be taken and tested to monitor whether the product quality meets standards.

[0003] However, in practical use, existing recycled concrete sampling devices have many shortcomings.

[0004] On the one hand, many traditional sampling devices, when sampling deep into concrete raw material piles, lack effective guidance and positioning structures, resulting in inaccurate sampling locations and difficulty in obtaining representative samples, thus affecting the accurate assessment of the quality of recycled concrete.

[0005] On the other hand, the process of removing the sample from the sampling device after sampling is cumbersome, which is not only inefficient but also prone to damage or contamination of the sample, further reducing the reliability of the test results. Utility Model Content

[0006] In view of the shortcomings of the prior art, this utility model provides a sampling device for the production of recycled concrete, which overcomes the shortcomings of the prior art and effectively solves the problems of inaccurate sampling location and cumbersome extraction process and low efficiency in the prior art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A sampling device for recycled concrete production includes a fixed tube with a conical block welded to its bottom. Fixing frames are welded to the inner walls of both ends of the fixed tube. A connecting tube is sleeved between the two fixing frames, and a connecting rod is inserted and slidably inserted into the connecting tube. Sampling mechanisms, evenly distributed, are slidably mounted on the outer wall of the connecting tube. Each sampling mechanism includes a ring, sliders welded and fixed to the inner wall of the ring at equal intervals, sampling boxes evenly distributed around the ring, and a connecting assembly connecting the ring and the sampling boxes. The connecting assembly includes a fixed rod, connectors welded and fixed to both ends of the fixed rod, and U-shaped blocks rotatably connected to the ends of the two connectors that are far apart from each other. A driving mechanism is connected to the top of the fixed tube. The driving mechanism includes a mounting plate, a push rod motor mounted and fixed to the bottom of the mounting plate, L-shaped plates welded and fixed to both ends of the bottom of the mounting plate, and collars welded and fixed to the ends of the two L-shaped plates that are close to each other.

[0009] The mounting plate is fixed to the external lifting equipment through the mounting holes at both ends of its top, ensuring stable installation. The fixing tube is then inserted into the concrete raw material via the external lifting equipment. The push rod motor is activated, and its bottom end pushes the connecting rod downwards within the connecting tube. Because the slider is welded to the outer wall of the connecting rod, and the slider and the strip groove on the outer wall of the connecting tube form a sliding fit, the downward movement of the connecting rod causes the slider to slide downwards within the strip groove, thus moving the ring downwards along the outer wall of the connecting tube. During the downward movement of the ring, the connecting assembly plays its role. The upper U-shaped block of the connecting assembly is welded to the ring, and the lower U-shaped block is welded to the sampling box. As the ring moves downwards, the connecting assembly causes the sampling box to rotate around the convex rod, gradually opening the sampling box. At this point, because the conical block at the bottom of the fixing tube guides the fixing tube into the recycled concrete pile, and because the sampling box is open and its top is an inclined structure facing inwards towards the fixing tube, the recycled concrete flows into the sampling box along the inclined surface, completing the sampling process. When it is necessary to remove the sample, the push rod motor is activated in reverse, causing the connecting rod to slide upward, which in turn moves the ring upward. The connecting component then acts again, causing the sampling box to rotate in the opposite direction around the protruding rod, gradually closing the sampling box and sealing the sample inside.

[0010] Furthermore, if it is necessary to adjust the angle of the fixed tube for sampling in different directions, the servo motor can be activated. The output shaft of the servo motor rotates, driving the gear that is fitted and fixed to it to rotate. Since a gear that meshes with this gear is also fitted and fixed to the top of the fixed tube, the fixed tube will rotate around its axis, achieving angle adjustment and facilitating efficient sampling operations at different angle positions. The entire device, through the power output of the drive mechanism, drives the action of the sampling mechanism, realizing a convenient, efficient, and accurate sampling workflow for recycled concrete.

[0011] Preferably, the outer wall of the connecting pipe is provided with equally spaced strip grooves, and the slider and the strip grooves form a sliding fit, and the slider is welded and fixed to the outer wall of the connecting rod.

[0012] Preferably, the outer wall of the fixed tube has equally spaced openings, and the openings are inserted into the sampling box.

[0013] Preferably, protruding rods are welded and fixed to the bottom of the outer walls on both sides of the sampling box, and the protruding rods are rotatably connected to the bottom of the inner walls on both sides of the opening. The top of the sampling box has an inclined structure, with the inclined direction facing the inside of the fixed tube.

[0014] Preferably, in the connecting assembly, the upper U-shaped block is welded and fixed to the outer wall of the ring, and the lower U-shaped block is welded and fixed to the top of the outer wall of the sampling box near the inner side of the fixing tube.

[0015] Preferably, the mounting plate has mounting holes at both ends of its top, and the mounting plate is fixed to the external lifting equipment by bolts, with the bottom end of the push rod motor rotatably connected to the top end of the connecting rod.

[0016] Preferably, the fixing tube is rotatably connected to the collar, and a servo motor is installed and fixed on the bottom inner wall of one of the L-shaped plates. The output shaft of the servo motor and the top end of the fixing tube are both fitted with meshing gears.

[0017] The beneficial effects of this utility model are as follows:

[0018] 1. By welding a fixed conical block to the bottom of the fixed tube, it can play a good guiding and positioning role when inserted into the recycled concrete pile, ensuring that the fixed tube is accurately inserted into the predetermined position, thereby obtaining a representative sample, greatly improving the accuracy of the sampling position, and providing a guarantee for the subsequent accurate evaluation of the quality of recycled concrete.

[0019] 2. The unique sampling mechanism design makes the sampling and sample collection process efficient and convenient. When the connecting rod slides inside the connecting tube, it drives the slider to slide within the strip groove on the outer wall of the connecting tube, thereby moving the ring along the outer wall of the connecting tube. At this time, the connecting assembly drives the sampling box to rotate around the protruding rod, realizing the opening and closing of the sampling box, improving sampling efficiency and sample quality. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a sampling device for recycled concrete production proposed in this utility model.

[0021] Figure 2 This is a schematic diagram of the sampling mechanism of a sampling device for recycled concrete production proposed in this utility model.

[0022] Figure 3 This is a schematic diagram of the connection component structure of a sampling device for recycled concrete production proposed in this utility model.

[0023] Figure 4 This is a schematic diagram of the drive mechanism of a sampling device for recycled concrete production proposed in this utility model.

[0024] In the diagram: 1. Fixed tube; 2. Conical block; 3. Fixing frame; 4. Connecting tube; 5. Connecting rod; 6. Sampling mechanism; 7. Ring; 8. Slider; 9. Sampling box; 10. Protruding rod; 11. Connecting assembly; 12. Fixed rod; 13. Connector; 14. U-shaped block; 15. Drive mechanism; 16. Mounting plate; 17. Push rod motor; 18. L-shaped plate; 19. Collar; 20. Servo motor. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example:

[0027] Reference Figure 1-4 A sampling device for recycled concrete production includes a fixed pipe 1, with a conical block 2 welded and fixed to the bottom of the fixed pipe 1. Fixing frames 3 are welded and fixed to the inner walls of both ends of the fixed pipe 1. A connecting pipe 4 is sleeved and fixed between the two fixing frames 3. A connecting rod 5 is inserted and slidably inserted into the connecting pipe 4. Sampling mechanisms 6, evenly distributed, are sleeved and slidably mounted on the outer wall of the connecting pipe 4. Each sampling mechanism 6 includes a ring 7, sliders 8 evenly welded and fixed to the inner wall of the ring 7, sampling boxes 9 evenly distributed around the ring 7, and a connection between the ring 7 and the... The connecting assembly 11 between the sampling boxes 9 includes a fixing rod 12, connectors 13 welded and fixed to both ends of the fixing rod 12, and U-shaped blocks 14 rotatably connected to the two connectors 13 at opposite ends. The top end of the fixing tube 1 is connected to a driving mechanism 15, which includes a mounting plate 16, a push rod motor 17 mounted and fixed to the bottom of the mounting plate 16, L-shaped plates 18 welded and fixed to both ends of the bottom of the mounting plate 16, and collars 19 welded and fixed to the two L-shaped plates 18 at opposite ends.

[0028] The outer wall of the connecting pipe 4 has equally spaced strip grooves. The slider 8 slides into the strip grooves and is welded to the outer wall of the connecting rod 5. The fixed pipe 1 serves as the main support structure of the entire device. The conical block 2 welded to its bottom can easily break through the surface of the recycled concrete pile when the device is inserted, reducing insertion resistance and guiding the fixed pipe 1 to be inserted vertically and accurately into the target position. Two fixing frames 3 are welded to the inner walls of both ends of the fixed pipe 1 to stabilize the connecting pipe 4 and ensure its stability within the fixed pipe 1, preventing it from shaking or shifting during device operation. The outer wall of the fixed pipe 1 has equally spaced openings that fit into the sampling box 9. The connecting pipe 4 is sleeved and fixed between the two fixing frames 3, and its outer wall has equally spaced strip grooves. The slider 8 slides into the strip grooves and is welded to the outer wall of the connecting rod 5. When the connecting rod 5 slides up and down inside the connecting tube 4, it will drive the slider 8 to slide synchronously in the strip groove, thereby enabling the ring 7 welded to the slider 8 to move along the outer wall of the connecting tube 4, providing power transmission for the position adjustment of the sampling box 9.

[0029] The bottom of both outer walls of the sampling box 9 is welded with protruding rods 10, which are rotatably connected to the bottom of the inner walls on both sides of the opening. The top of the sampling box 9 has an inclined structure, with the inclined direction facing the inside of the fixing tube 1. The outer wall of the fixing tube 1 has openings that are evenly distributed, and these openings form an insertion fit with the sampling box 9. The bottom of both outer walls of the sampling box 9 is welded with protruding rods 10, which are rotatably connected to the bottom of the inner walls on both sides of the opening, allowing the sampling box 9 to rotate around the protruding rods 10. The top of the sampling box 9 is designed with an inclined structure, and the inclined direction faces the inside of the fixing tube 1. This design is beneficial for concrete to enter the sampling box 9 more easily along the inclined surface during the sampling process, improving sampling efficiency. The upper U-shaped block 14 in the connecting component 11 is welded and fixed to the outer wall of the ring 7, and the lower U-shaped block 14 is welded and fixed to the top of the outer wall of the sampling box 9 on the side closest to the inside of the fixing tube 1. Mounting holes are provided at both ends of the top of the mounting plate 16. The mounting plate 16 is fixed to the external lifting equipment by bolts. The bottom end of the push rod motor 17 is rotatably connected to the top end of the connecting rod 5. The inner wall of the ring 7 in the sampling mechanism 6 is welded with sliders 8 at equal intervals, which are used to cooperate with the strip groove on the outer wall of the connecting tube 4 to achieve sliding. Sampling boxes 9 are distributed at equal intervals around the ring 7. The connecting assembly 11 connects the ring 7 and the sampling boxes 9. The two ends of the fixing rod 12 in the connecting assembly 11 are welded with connectors 13. The two connectors 13 are rotatably connected to U-shaped blocks 14 at opposite ends. The upper U-shaped block 14 is welded to the outer wall of the ring 7, and the lower U-shaped block 14 is welded to the top of the outer wall of the sampling box 9 near the inner side of the fixing tube 1. When the ring 7 moves, the connecting assembly 11 can drive the sampling box 9 to rotate around the protruding rod 10, realizing the opening and closing action of the sampling box 9.

[0030] The fixed tube 1 is rotatably connected to the collar 19. A servo motor 20 is fixedly mounted on the inner bottom wall of one of the L-shaped plates 18. The output shaft of the servo motor 20 and the top end of the fixed tube 1 are both fitted with meshing gears. The drive mechanism 15 provides power for the sampling action of the entire device. The mounting holes at both ends of the top of the mounting plate 16 facilitate fixing the mounting plate 16 to external equipment for stable support. The push rod motor 17 is fixedly mounted on the bottom of the mounting plate 16, and its bottom end is rotatably connected to the top end of the connecting rod 5. When the push rod motor 17 is started, it can push the connecting rod 5 to slide up and down inside the connecting tube 4. Two L-shaped plates 18 are welded and fixed to the bottom ends of the mounting plate 16 respectively. The L-shaped plates 18 serve to connect and support the collar 19. The fixed tube 1 is rotatably connected to the collar 19. A servo motor 20 is fixedly mounted on the inner bottom wall of one of the L-shaped plates 18. The output shaft of the servo motor 20 and the top end of the fixed tube 1 are both fitted with meshing gears. When the servo motor 20 is started, it can drive the fixed tube 1 to rotate through gear transmission, which further facilitates the sampling operation of the device at different angles.

[0031] Working principle:

[0032] The mounting plate 16 is fixed to the external lifting equipment through the mounting holes at both ends of its top, ensuring stable installation of the device. The fixing pipe 1 is then inserted into the concrete material using the external lifting equipment. The push rod motor 17 is started, and the bottom end of the push rod motor 17 pushes the connecting rod 5 to slide downwards inside the connecting pipe 4. Since the slider 8 is welded and fixed to the outer wall of the connecting rod 5, and the slider 8 forms a sliding fit with the strip groove on the outer wall of the connecting pipe 4, the downward movement of the connecting rod 5 will cause the slider 8 to slide downwards within the strip groove, thereby causing the ring 7 to move downwards along the outer wall of the connecting pipe 4.

[0033] As the ring 7 moves downward, the connecting assembly 11 comes into play. The upper U-shaped block 14 of the connecting assembly 11 is welded to the ring 7, and the lower U-shaped block 14 is welded to the sampling box 9. As the ring 7 moves downward, the connecting assembly 11 causes the sampling box 9 to rotate around the protruding rod 10, gradually opening the sampling box 9. At this time, because the conical block 2 at the bottom of the fixing tube 1 guides the fixing tube 1 into the recycled concrete pile, and because the sampling box 9 is open and its top is an inclined structure facing inwards from the fixing tube 1, the recycled concrete will enter the sampling box 9 along the inclined surface, completing the sampling action. When it is necessary to remove the sample, the push rod motor 17 is activated in the reverse direction, causing the connecting rod 5 to slide upwards, moving the ring 7 upwards. The connecting assembly 11 then acts again, causing the sampling box 9 to rotate in the opposite direction around the protruding rod 10, gradually closing the sampling box 9 and sealing the sample inside.

[0034] Furthermore, if it is necessary to adjust the angle of the fixed tube 1 for sampling in different directions, the servo motor 20 can be activated. The output shaft of the servo motor 20 rotates, driving the gear that is fitted and fixed to it to rotate. Since the top of the fixed tube 1 is also fitted and fixed with a gear that meshes with this gear, the fixed tube 1 will rotate around its axis, realizing angle adjustment and facilitating efficient sampling operations at different angle positions. The entire device, through the power output of the drive mechanism 15, drives the action of the sampling mechanism 6, realizing a convenient, efficient, and accurate sampling workflow for recycled concrete.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A sampling device for the production of recycled concrete, comprising a fixed tube (1), characterized in that, A conical block (2) is welded and fixed to the bottom of the fixed tube (1), and a fixing frame (3) is welded and fixed to the inner walls of both ends of the fixed tube (1). A connecting tube (4) is sleeved and fixed between the two fixing frames (3), and a connecting rod (5) is inserted and slidably inserted into the connecting tube (4). Sampling mechanisms (6) are slidably distributed at equal intervals on the outer wall of the connecting tube (4), and the sampling mechanism (6) includes a ring (7), a slider (8) welded and fixed at equal intervals to the inner wall of the ring (7), sampling boxes (9) distributed at equal intervals around the ring (7), and a connecting rod (9) connecting the ring (7) and the sampling box (9). The component (11) includes a fixed rod (12), connectors (13) welded and fixed to both ends of the fixed rod (12), and U-shaped blocks (14) rotatably connected to the two connectors (13) at opposite ends. The top end of the fixed tube (1) is connected to a drive mechanism (15), and the drive mechanism (15) includes a mounting plate (16), a push rod motor (17) mounted and fixed to the bottom of the mounting plate (16), L-shaped plates (18) welded and fixed to both ends of the bottom of the mounting plate (16), and collars (19) welded and fixed to the two L-shaped plates (18) at opposite ends.

2. The sampling device for recycled concrete production according to claim 1, characterized in that, The outer wall of the connecting pipe (4) is provided with equally spaced strip grooves, and the slider (8) forms a sliding fit with the strip grooves. The slider (8) is welded and fixed to the outer wall of the connecting rod (5).

3. A sampling device for recycled concrete production according to claim 1, characterized in that, The outer wall of the fixed tube (1) has equally spaced openings, and the openings are inserted into the sampling box (9).

4. A sampling device for recycled concrete production according to claim 3, characterized in that, The bottom of the outer walls on both sides of the sampling box (9) is welded with protruding rods (10), and the protruding rods (10) are rotatably connected to the bottom of the inner walls on both sides of the opening. The top of the sampling box (9) is a slanted structure, with the slant direction facing the inside of the fixed tube (1).

5. A sampling device for recycled concrete production according to claim 1, characterized in that, The upper U-shaped block (14) of the connecting assembly (11) is welded and fixed to the outer wall of the ring (7), and the lower U-shaped block (14) is welded and fixed to the top of the outer wall of the sampling box (9) near the inner side of the fixing tube (1).

6. A sampling device for recycled concrete production according to claim 1, characterized in that, The mounting plate (16) has mounting holes at both ends of its top, and the mounting plate (16) is fixed to the external lifting equipment by bolts. The bottom end of the push rod motor (17) is rotatably connected to the top end of the connecting rod (5).

7. A sampling device for recycled concrete production according to claim 1, characterized in that, The fixed tube (1) is rotatably connected to the collar (19), and a servo motor (20) is installed and fixed on the bottom inner wall of one of the L-shaped plates (18). The output shaft of the servo motor (20) and the top end of the fixed tube (1) are both fitted with meshing gears.

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