Cement quality inspection sampling device for building construction quality supervision

Abstract

The utility model relates to the technical field of cement equipment quality inspection, in particular to a cement quality inspection sampling device for building construction quality supervision, which comprises a sampling outer cylinder, a sampling layering device, a rotary sealing mechanism and a sampling device, the rotary sealing mechanism is fixedly connected to the inner bottom wall of the sampling outer cylinder, and the sampling device is fixedly connected to the bottom of the sampling outer cylinder. According to the utility model, the stratified sampling device is arranged, and the stratified sampling hole is formed in the outer surface of the sampling inner cylinder and penetrates through the outer surfaces of the sampling inner cylinder and the sampling outer cylinder, so that a cement pile can be sampled at different depth levels, more representative samples can be obtained, and possible quality differences of cement at different depths can be detected more accurately; more reliable data support is provided for building construction quality supervision, the building engineering quality is guaranteed from the source, and the cement quality condition is comprehensively reflected.

Description

Technical Field

[0001] This utility model relates to the field of cement equipment quality inspection technology, and in particular to a cement quality inspection sampling device for construction quality supervision. Background Technology

[0002] Cement is a powdered hydraulic inorganic binder that forms a paste when mixed with water. It hardens in air or, even better, in water, and can firmly bind materials such as sand and stone together. Early mixtures of lime and volcanic ash are very similar to modern lime-volcanic ash cement. Concrete made by binding crushed stone with cement not only has high strength after hardening but also resists erosion from fresh or salt water. For a long time, it has been widely used as an important binder in civil engineering, water conservancy, and national defense. However, the proportion and quality of cement can easily affect the quality of a project.

[0003] Utility model CN217059489U discloses a cement sampling device, including a central shaft. One end of the central shaft is provided with a spiral blade extending to the bottom of a sampling tube, and the other end of the central shaft is detachably connected to a drive unit. The sampling tube has several inlets arranged sequentially from top to bottom, and an outlet is provided near the inlet end of the sampling tube. This utility model has a simple structure, low manufacturing cost, light weight, and is easy to carry. It does not require a power supply and is suitable for any location. The sampled samples are continuous, uniform, and highly representative, with effective quantity control. It solves the problems of small sample volume per sampling, frequent sampling, and the need for sampling personnel to carry samples up and down the cement truck during manual sampling. It also reduces labor intensity, simplifies the process of frequently pouring out cement samples during sampling, improves sampling efficiency, and makes sampling more convenient.

[0004] When using the above technical solution,

[0005] (1) Its sampling method is relatively simple and it is difficult to meet the precise sampling needs of different parts and layers of cement, resulting in the lack of representativeness of the samples taken.

[0006] (2) The device is not well sealed, and external impurities are easily mixed in during the sampling process, which affects the purity of the cement sample and thus interferes with the accuracy of subsequent quality testing. Utility Model Content

[0007] The purpose of this invention is to address the shortcomings of existing technologies, such as limited sampling methods and poor sealing, by proposing a cement quality inspection sampling device for construction quality supervision.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: a cement quality inspection sampling device for construction quality supervision, comprising a sampling outer cylinder, a sampling layering device, a rotating sealing mechanism, and a sampling device. The sampling layering device is inserted into the interior of the sampling outer cylinder, the rotating sealing mechanism is fixedly connected to the inner bottom wall of the sampling outer cylinder, and the sampling device is fixedly connected to the bottom of the sampling outer cylinder. The sampling layering device includes a sampling inner cylinder inserted into the interior of the sampling outer cylinder. The outer surface of the sampling inner cylinder is provided with layered sampling holes, which penetrate the outer surfaces of the sampling inner cylinder and the sampling outer cylinder.

[0009] Furthermore, a sampling layering partition is fixedly connected inside the sampling inner cylinder, which divides the interior of the sampling inner cylinder into three sample slots.

[0010] Furthermore, a tension handle is fixedly connected to both sides of the sampling outer cylinder, a rotating handle is fixedly connected to the top of the sampling outer cylinder, and an anti-slip sleeve is fixedly connected to the outer surface of the rotating handle.

[0011] Furthermore, the rotating sealing mechanism includes a telescopic spring fixedly connected to the bottom of the sampling inner cylinder, and a fixing plate is fixedly connected to the bottom of the telescopic spring.

[0012] Furthermore, a connecting shaft is fixedly connected to the bottom of the fixing plate, and a bearing is rotatably connected to the bottom of the connecting shaft.

[0013] Furthermore, the outer surface of the bearing is fitted into the inner bottom wall of the sampling outer cylinder, and the sampling inner cylinder is rotatably connected to the inner bottom wall of the sampling outer cylinder through the bearing.

[0014] Furthermore, the sampling device includes a threaded port fixedly connected to the bottom of the sampling outer cylinder, a sampling head is threadedly connected to the outer surface of the threaded port, and a threaded hole is opened on the inner wall of the sampling head. The sampling head is threadedly connected to the bottom of the sampling outer cylinder through the threaded hole.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] 1. In this utility model, by setting up a layered sampling device, a layered sampling hole is opened on the outer surface of the sampling inner cylinder, and the hole penetrates the outer surface of the sampling inner cylinder and the sampling outer cylinder. This allows sampling at different depths of the cement pile to obtain more representative samples, and can more accurately detect the possible quality differences of cement at different depths. This provides more reliable data support for the supervision of construction quality, ensures the quality of construction projects from the source, and comprehensively reflects the quality status of cement.

[0017] 2. In this utility model, the sealing mechanism ensures the sealing of the device during the sampling process. Rotating the inner and outer sampling barrels and pressing the telescopic spring can cause the layered sampling holes between the inner and outer sampling barrels to be misaligned during the movement of the sampling device. This can prevent external impurities or cement of different depths from mixing in, avoid interference from impurities on the accuracy of subsequent quality testing, reduce detection errors caused by sample contamination, ensure sample purity, and improve detection accuracy. Attached Figure Description

[0018] Figure 1 This utility model provides a three-dimensional structural schematic diagram of a cement quality inspection and sampling device for supervising construction quality.

[0019] Figure 2 This utility model provides a structural schematic diagram of the telescopic spring in a cement quality inspection and sampling device for construction quality supervision.

[0020] Figure 3 This utility model provides a schematic diagram of the sampling inner cylinder in a cement quality inspection sampling device for construction quality supervision.

[0021] Figure 4 This is a schematic diagram of the bearing structure in a cement quality inspection and sampling device for supervising construction quality according to this utility model;

[0022] Figure 5 This utility model relates to a cement quality inspection and sampling device for supervising construction quality. Figure 3 Schematic diagram at point A.

[0023] Legend:

[0024] 1. Sampling outer cylinder; 2. Sampling stratification device; 21. Sampling inner cylinder; 22. Stratified sampling hole; 23. Sampling stratification partition; 24. Sample slot; 25. Tension handle; 26. Rotary handle; 27. Anti-slip sleeve; 3. Rotary sealing mechanism; 31. Telescopic spring; 32. Fixing plate; 33. Connecting shaft; 34. Bearing; 4. Sampling device; 41. Threaded port; 42. Sampling head; 43. Threaded wire hole. Detailed Implementation

[0025] Please see Figure 1-5 This utility model provides a technical solution: a cement quality inspection sampling device for construction quality supervision, including a sampling outer cylinder 1, a sampling layering device 2, a rotating sealing mechanism 3 and a sampling device 4. The sampling layering device 2 is inserted into the inside of the sampling outer cylinder 1, the rotating sealing mechanism 3 is fixedly connected to the inner bottom wall of the sampling outer cylinder 1, and the sampling device 4 is fixedly connected to the bottom of the sampling outer cylinder 1.

[0026] The following section will describe in detail the specific setup and function of its sampling stratification device 2, rotating sealing mechanism 3, and sampling device 4.

[0027] In this embodiment: the sampling layering device 2 includes a sampling inner cylinder 21 inserted into the sampling outer cylinder 1. The outer surface of the sampling inner cylinder 21 is provided with a layered sampling hole 22, which penetrates the outer surface of the sampling inner cylinder 21 and the sampling outer cylinder 1.

[0028] The effect achieved by the above-mentioned components is that they can obtain cement samples from different locations according to different depth requirements.

[0029] Specifically, a sampling layering partition 23 is fixedly connected inside the sampling inner cylinder 21, which divides the inside of the sampling inner cylinder 21 into three sample slots 24.

[0030] The effect achieved by the above components is that the three sample slots 24 can collect cement samples from different layers respectively, so that samples from different depths will not be mixed up.

[0031] Specifically, the sampling outer cylinder 1 is fixedly connected to both sides with a tension handle 25, the sampling outer cylinder 1 is fixedly connected to the top with a rotating handle 26, and the outer surface of the rotating handle 26 is fixedly connected to an anti-slip sleeve 27.

[0032] The effect achieved by the above components is that the entire device is stably inserted into the cement pile, reducing the difficulty of operation, and the rotating handle 26 makes it easy for the operator to rotate the sampling inner cylinder 21 to adjust the position of the layered sampling hole 22.

[0033] Specifically, the rotating sealing mechanism 3 includes a telescopic spring 31 fixedly connected to the bottom of the sampling inner cylinder 21, and a fixing plate 32 fixedly connected to the bottom of the telescopic spring 31.

[0034] The effect achieved by the above components is that the telescopic spring 31 can extend and retract to a certain extent according to the rotation of the sampling inner cylinder 21, ensuring that the layered sampling holes 22 between the sampling inner cylinder 21 and the sampling outer cylinder 1 are in a misaligned state after sampling is completed, preventing external impurities from mixing into the sample from the gap between the two.

[0035] Specifically, a connecting shaft 33 is fixedly connected to the bottom of the fixed plate 32, and a bearing 34 is rotatably connected to the bottom of the connecting shaft 33.

[0036] The effect achieved by the above components is that the connecting shaft 33 and the bearing 34 are rotatably connected, providing stable support for the rotation of the sampling inner cylinder 21, while ensuring smooth rotation.

[0037] Specifically, the outer surface of the bearing 34 is fitted into the inner bottom wall of the sampling outer cylinder 1, and the sampling inner cylinder 21 is rotatably connected to the inner bottom wall of the sampling outer cylinder 1 through the bearing 34.

[0038] The effect achieved by the above components is that the fitting method between the bearing 34 and the inner bottom wall of the sampling outer cylinder 1 further ensures the sealing of the entire device and prevents impurities from entering the sampling device 4 from the bottom.

[0039] Specifically, the sampling device 4 includes a threaded port 41 fixedly connected to the bottom of the sampling outer cylinder 1. A sampling head 42 is threadedly connected to the outer surface of the threaded port 41. A threaded hole 43 is provided on the inner wall of the sampling head 42. The sampling head 42 is threadedly connected to the bottom of the sampling outer cylinder 1 through the threaded hole 43.

[0040] The effect achieved by the above components is that the sharp sampling head 42 can be inserted into the cement pile more easily, thus improving the sampling efficiency.

[0041] Working principle: When using this cement quality inspection sampling device for construction quality supervision, the operator first holds the tension handles 25 on both sides of the outer sampling cylinder 1, rotates the inner sampling cylinder 21 through the bearing 34, and presses the telescopic spring 31 to keep the inner sampling cylinder 21 and the layered sampling holes 22 on the outer sampling cylinder 1 in a misaligned state, preventing some cement from entering the sample tank 24 during the insertion process. Then, the device is vertically inserted into the cement pile. After reaching the required depth, the operator rotates the rotating handle 26 at the top of the outer sampling cylinder 1 to drive the inner sampling cylinder 21 to rotate. Since the bottom of the inner sampling cylinder 21 is connected to the sampling cylinder through the connecting shaft 33 and the bearing 34, the sampling cylinder 21 rotates. The inner bottom wall of the outer cylinder 1 is rotatably connected, so the rotation process is smooth. As the sampling inner cylinder 21 rotates, the layered sampling holes 22 are aligned with the positions of different depths of the cement pile in sequence. The cement enters the sample groove 24 in the sampling inner cylinder 21 through the layered sampling holes 22 to achieve layered sampling. After sampling is completed, rotate the sampling outer cylinder 1 and press the telescopic spring 31 to keep the layered sampling holes 22 on the sampling inner cylinder 21 and the sampling outer cylinder 1 in a misaligned state. Hold the tension handle 25 to remove the device from the cement pile. If the sampling head 42 needs to be replaced, it can be removed from the threaded opening 41 by rotating the sampling head 42 and using the threaded connection.

Claims

1. A cement quality inspection sampling device for construction quality supervision, comprising a sampling outer cylinder (1), a sampling layering device (2), a rotating sealing mechanism (3) and a sampling device (4), characterized in that: The sampling layering device (2) is inserted into the inside of the sampling outer cylinder (1), the rotating sealing mechanism (3) is fixedly connected to the inner bottom wall of the sampling outer cylinder (1), the sampling device (4) is fixedly connected to the bottom of the sampling outer cylinder (1), the sampling layering device (2) comprises a sampling inner cylinder (21) inserted into the inside of the sampling outer cylinder (1), and the outer surface of the sampling inner cylinder (21) is provided with a layering sampling hole (22) penetrating through the outer surfaces of the sampling inner cylinder (21) and the sampling outer cylinder (1).

2. The cement quality checking and sampling device for construction quality supervision according to claim 1, characterized in that: The inside of the sampling inner cylinder (21) is fixedly connected with a sampling layering partition plate (23), and the sampling layering partition plate (23) divides the inside of the sampling inner cylinder (21) into three sample grooves (24).

3. The cement quality checking and sampling device for construction quality supervision according to claim 2, characterized in that: Both sides of the sampling outer cylinder (1) are fixedly connected with stretching handles (25), and the top of the sampling outer cylinder (1) is fixedly connected with a rotating handle (26), and the outer surface of the rotating handle (26) is fixedly connected with an anti-skid sleeve (27).

4. The cement quality checking and sampling device for construction quality supervision according to claim 1, characterized in that: The rotating sealing mechanism (3) comprises a telescopic spring (31) fixedly connected to the bottom of the sampling inner cylinder (21), and the bottom of the telescopic spring (31) is fixedly connected with a fixed plate (32).

5. The cement quality checking and sampling device for construction quality supervision according to claim 4, characterized in that: The bottom of the fixed plate (32) is fixedly connected with a connecting shaft (33), and the bottom of the connecting shaft (33) is rotatably connected with a bearing (34).

6. The cement quality checking and sampling device for construction quality supervision according to claim 5, characterized in that: The outer surface of the bearing (34) is fitted into the inner bottom wall of the sampling outer cylinder (1), and the sampling inner cylinder (21) is rotatably connected to the inner bottom wall of the sampling outer cylinder (1) through the bearing (34).

7. The cement quality checking and sampling device for construction quality supervision according to claim 1, characterized in that: The sampling device (4) comprises a threaded port (41) fixedly connected to the bottom of the sampling outer cylinder (1), the outer surface of the threaded port (41) is threadedly connected with a sampling head (42), the inner wall of the sampling head (42) is provided with a threaded hole (43), and the sampling head (42) is threadedly connected to the bottom of the sampling outer cylinder (1) through the threaded hole (43).

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