A concrete sampling device for high wall protection deep pile concrete pouring

Abstract

This utility model provides a concrete sampling device for pouring concrete for high-walled deep piles, including a sampling cylinder. A hand-held rod is vertically and fixedly connected to one side of the upper part of the sampling cylinder. A top cover is provided on the top of the sampling cylinder, and a connecting lug is provided on the side of the top cover near the hand-held rod. The connecting lug is rotatably connected to the hand-held rod via a shaft. A bottom cover is provided on the inner side of the bottom of the sampling cylinder, and the bottom cover is rotatably connected to the side wall of the sampling cylinder via a pin. A stop block is horizontally fixed on the inner side of the bottom end of the sampling cylinder, allowing the free end of the bottom cover to be placed. This sampling device can perform real-time detection of concrete samples taken from the top of the pile during the pouring process, accurately reflecting the true quality of the concrete at the pile top elevation, thus ensuring concrete quality and avoiding concrete waste.

Description

Technical Field

[0001] This utility model belongs to the field of sampling device technology, specifically relating to a concrete sampling device for pouring concrete for high-walled deep piles. Background Technology

[0002] When pouring concrete for pile foundations, it is essential to ensure that the concrete mix proportion is consistent throughout the entire pile and meets the design requirements. Near the end of the pouring process, the concrete quality at the pile top elevation needs to be checked. When pouring pile foundations using impact drilling or rotary drilling, the laitance at the top of the concrete becomes increasingly thick and concentrated as the pouring progresses. Generally, for pile foundations with low retaining walls (pile top elevation higher than or slightly lower than the original ground level), the laitance is allowed to flow out completely until qualified concrete is produced. The concrete wasted in this operation is within a reasonable range. However, when pouring concrete for deeper pile foundations, the laitance at the top gradually thickens as the pouring progresses to the final stage. If it's a high-wall pile foundation (the pile top elevation is lower than the original ground level and lower than the top of the retaining wall), continuing to let all the laitance flow out until fresh, qualified concrete is visible would be wasteful (wasting the concrete from the pile top to the top of the retaining wall). To avoid wasting this concrete and to reduce the workload of breaking the pile head (the section of concrete above the pile top elevation is called the pile head, which is necessary, but its quality requirements are not high; it mainly protects the pile foundation concrete and will be completely removed in the next construction phase, down to the design pile top elevation), we generally only pour qualified concrete up to the design pile top elevation (or slightly higher by a few centimeters). So, in the case of deep piles with high retaining walls, how can we extract the concrete at the pile top elevation to test its quality and avoid this situation? Conventional samplers are prone to mixing in mud during the sinking process, which prevents them from accurately reflecting the quality of the concrete at the pile top.

[0003] In view of this, in order to solve the above-mentioned technical problems, this utility model proposes a concrete sampling device for the pouring of high-walled deep pile concrete. It can perform real-time detection by sampling concrete at the top elevation of the high-walled deep pile during the pouring process, accurately reflecting the true quality of the concrete at the top elevation of the pile, so as to avoid concrete waste. Utility Model Content

[0004] This utility model provides a concrete sampling device for pouring concrete for high-walled deep piles. During the pouring process, it allows for real-time monitoring of the concrete at the pile top, accurately reflecting the true quality of the concrete at that elevation and thus preventing concrete waste. The specific solution is as follows: A concrete sampling device for pouring concrete for high-walled deep piles includes a sampling cylinder. A hand-held rod is vertically and fixedly connected to one side of the upper part of the sampling cylinder. A top cover is provided on the top of the sampling cylinder. A connecting lug is provided on the side of the top cover near the hand-held rod. The connecting lug is rotatably connected to the hand-held rod through a shaft. A bottom cover is provided on the inner side of the bottom of the sampling cylinder. The bottom cover is rotatably connected to the side wall of the sampling cylinder through a pin. A stop block is horizontally fixed on the inner side of the bottom end of the sampling cylinder, allowing the free end of the bottom cover to be placed.

[0005] Furthermore, a traction rope is provided on one side of the handheld lever along its height direction. The lower end of the traction rope passes through the bottom cover and is connected to the lower surface of the top cover. A limiting ring is fixedly connected to the traction rope on the upper surface of the bottom cover.

[0006] Furthermore, the length of the traction rope inside the sampling tube is the same as the length between the top cover and the bottom cover.

[0007] Furthermore, an installation strip is fixedly connected to the side wall of the sampling tube below the handheld rod along its height. The installation strip has a vertical through hole suitable for the traction rope to pass through, and the top of the handheld rod is fixedly connected to the top of the installation strip.

[0008] Furthermore, a handrail is horizontally fixed to the top of the handrail, and a rotating drum is movably sleeved on one side of the handrail, with the upper end of the traction rope wound around the rotating drum.

[0009] Furthermore, the handheld lever has multiple line-stopping loops evenly spaced along its height on one side, allowing the traction rope to pass through.

[0010] Furthermore, the traction rope is a steel wire rope.

[0011] Furthermore, the handheld lever is composed of multiple levers, with external threads at the ends of adjacent levers and detachably connected via a threaded cylinder.

[0012] The beneficial effects of this utility model are: This utility model discloses a concrete sampling device for pouring concrete for high-walled deep piles. By setting up a sampling cylinder, top and bottom covers at the upper and lower ends, a hand rod and its traction rope, the device can sample concrete at the top elevation of the high-walled deep pile during the pouring process and conduct real-time detection. This accurately reflects the true quality of the concrete at the top elevation of the pile, ensures the quality of the pile, and avoids concrete waste. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 for Figure 1 Enlarged view of section A.

[0015] Figure 3 This is a partial sectional view of the present invention.

[0016] Figure 4 for Figure 3 Enlarged view of a portion of the image.

[0017] Explanation of reference numerals in the attached drawings: 1. Sampling cylinder; 2. Hand lever; 3. Top cover; 4. Connecting ear; 5. Bottom cover; 6. Stop block; 7. Traction rope; 8. Limiting ring; 9. Mounting strip; 10. Handrail; 11. Rotating drum; 12. Line blocking ring. Detailed Implementation

[0018] 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.

[0019] See Figure 1-4 A concrete sampling device for high-walled deep pile concrete pouring includes a sampling cylinder 1, which can be a cylindrical or conical structure. A hand-held rod 2 is vertically fixed to one side of the upper part of the sampling cylinder 1. The hand-held rod 2 is made of steel reinforcement, which has sufficient weight and hardness. A top cover 3 is provided on the top of the sampling cylinder 1. A connecting lug 4 is provided on the side of the top cover 3 near the hand-held rod 2. The connecting lug 4 is rotatably connected to the hand-held rod 2 via a shaft. A bottom cover 5 is provided on the inner side of the bottom of the sampling cylinder 1. The bottom cover 5 is rotatably connected to the side wall of the sampling cylinder 1 via a shaft pin. A notch is opened on one side of the bottom end of the sampling cylinder 1. A connecting block is provided on the side of the bottom cover 5 and is rotatably connected to the two side walls of the notch via a shaft pin. The rotation direction of the top cover 3 and the bottom cover 5 is the same. A stop block 6 is horizontally fixed on the inner side of the bottom end of the sampling cylinder 1 for the free end of the bottom cover 5 to be placed. The function of the stop block 6 is to prevent the bottom cover 5 from flipping downward when the hand-held rod 2 is lifted upward after sampling.

[0020] A traction rope 7 is provided on one side of the handheld rod 2 along its height direction. The lower end of the traction rope 7 passes through the bottom cover 5 and is connected to the lower surface of the top cover 3. A limiting ring 8 is fixedly connected to the traction rope 7 on the upper surface of the bottom cover 5. Specifically, the traction rope 7 extends along the rotating side of the bottom cover 5 to the middle of the lower surface of the bottom cover 5 and passes through it and is fixedly connected to the lower surface of the top cover 3. The traction rope 7 can make the top cover 3 and the bottom cover 5 form a sealed state when the sampling cylinder 1 sinks into the concrete to prevent the slurry from entering the sampling cylinder 1.

[0021] The length of the traction rope 7 inside the sampling cylinder 1 is the same as the length between the top cover 3 and the bottom cover 5, which further ensures the sealing of the top cover 3 and the bottom cover 5.

[0022] An installation strip 9 is fixedly connected to the side wall of the sampling cylinder 1 below the handheld rod 2 along its height. The installation strip 9 has a vertical through hole suitable for the traction rope 7 to pass through. The top of the handheld rod 2 is fixedly connected to the top of the installation strip 9. The installation strip 9 is designed to effectively limit the traction rope 7.

[0023] A handrail 10 is horizontally fixed to the top of the handheld rod 2. A rotating drum 11 is movably sleeved on one side of the handrail 10. The upper end of the traction rope 7 is wound around the rotating drum 11. The handrail 10 makes it easier to push the handheld rod 2 during the sinking of the sampling tube 1. The rotating drum 11 is designed to wind the traction rope 7, making it easier to hold the rotating drum 11 and pull the traction rope 7 to the top cover 3 and bottom cover 5 during the sinking of the sampling tube 1.

[0024] The handheld lever 2 has multiple line-blocking rings 12 evenly spaced along its height on one side, which allow the traction rope 7 to pass through. The multiple line-blocking rings 12 can further limit the traction rope 7.

[0025] The traction rope 7 is a steel wire rope, which has better strength and stronger tensile strength.

[0026] The handheld pole 2 is composed of multiple poles, with external threads at the ends of each pair of adjacent poles and detachably connected by a threaded cylinder. This design allows the handheld pole 2 to be extended when the pile is deep, making it more convenient to use.

[0027] The working principle of this utility model: During sampling, first confirm the depth of the pile to determine the length of the hand rod 2. Then, rotate the drum 11 to pull the top cover 3 and bottom cover 5 with the traction rope 7. This causes the top cover 3 to cover the top of the sampling cylinder 1 and the bottom cover 5 to abut against the stop block 6, thus sealing the sampling cylinder 2 and preventing slurry from entering it when the sampling cylinder 1 sinks. When the sampling cylinder 1 sinks to the top elevation of the pile, rotate the drum 11 to loosen the traction rope 7. Then, slowly lift the hand rod 2 in small increments to gradually open the bottom cover 5 and top cover 3. After several repetitions, lift the sampling cylinder 1 upwards (when sinking, the concrete enters from the bottom and exits from the top of the sampling cylinder 1). Then, slowly lift it upwards so that the top cover 3, under the weight of the concrete, flips down to cover the top surface of the sampling cylinder 1 and the bottom cover 5 to abut against the stop block 6, sealing the sampling cylinder 1. Finally, lift the hand rod 2 upwards to extract the concrete from the top of the pile without any slurry. This allows for testing to accurately reflect the true quality of the concrete at the top elevation of the pile.

[0028] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A concrete sampling device for pouring concrete for high-walled deep piles, characterized in that: The sample includes a sampling tube (1), a hand-held rod (2) is vertically fixedly connected to one side of the upper part of the sampling tube (1), a top cover (3) is provided on the top of the sampling tube (1), a connecting ear (4) is provided on the side of the top cover (3) near the hand-held rod (2), the connecting ear (4) is rotatably connected to the hand-held rod (2) through a shaft, a bottom cover (5) is provided on the inner side of the bottom of the sampling tube (1), the bottom cover (5) is rotatably connected to the side wall of the sampling tube (1) through a shaft pin, and a stop block (6) is horizontally fixed on the inner side of the bottom end of the sampling tube (1) for the free end of the bottom cover (5) to be placed.

2. The concrete sampling device for high-walled deep pile concrete pouring according to claim 1, characterized in that: A traction rope (7) is provided on one side of the handheld rod (2) along its height direction. The lower end of the traction rope (7) passes through the bottom cover (5) and is connected to the lower surface of the top cover (3). A limiting ring (8) is fixedly connected to the traction rope (7) on the upper surface of the bottom cover (5).

3. The concrete sampling device for high-walled deep pile concrete pouring according to claim 2, characterized in that: The length of the traction rope (7) inside the sampling tube (1) is the same as the length between the top cover (3) and the bottom cover (5).

4. A concrete sampling device for high-walled deep pile concrete pouring according to claim 2, characterized in that: An installation strip (9) is fixedly connected to the side wall of the sampling tube (1) below the handheld rod (2) along its height. A through hole suitable for the traction rope (7) is vertically opened in the installation strip (9). The top of the handheld rod (2) is fixedly connected to the top of the installation strip (9).

5. A concrete sampling device for pouring concrete for high-walled deep piles according to claim 2, characterized in that: The top of the handrail (2) is horizontally fixed with a handrail (10), and a rotating drum (11) is movably sleeved on one side of the handrail (10). The upper end of the traction rope (7) is wound around the rotating drum (11).

6. A concrete sampling device for high-walled deep pile concrete pouring according to claim 2, characterized in that: The handheld lever (2) has multiple line-blocking rings (12) evenly spaced along its height on one side, through which the traction rope (7) can pass.

7. A concrete sampling device for pouring concrete for high-walled deep piles according to claim 2, characterized in that: The traction rope (7) is a steel wire rope.

8. A concrete sampling device for high-walled deep pile concrete pouring according to claim 1, characterized in that: The handheld lever (2) is composed of multiple levers, with external threads at the ends of adjacent levers and detachably connected by a threaded cylinder.

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