Sampling device for cement detection

Abstract

The utility model relates to the field of cement detection, and discloses a sampling device for cement detection, which comprises a sampling outer cylinder, a sampling inner cylinder is rotatably connected in the sampling outer cylinder, a first sampling hole and a second sampling hole which are correspondingly arranged are arranged on the sampling outer cylinder and the sampling inner cylinder, and a material guide shaft is rotatably connected in the sampling inner cylinder. The outer wall of the material guide shaft is fixedly connected with a spiral auger blade matched with the inner wall of the sampling inner cylinder, the upper end of the sampling outer cylinder is fixedly connected with a motor for driving the material guide shaft to rotate, the upper end of the sampling inner cylinder is fixedly connected with a discharging pipe which is obliquely arranged downwards, the sampling outer cylinder is provided with a movable hole matched with the discharging pipe, and the outer wall of the sampling inner cylinder is provided with an adjusting shifting piece; an adjusting hole matched with the adjusting shifting piece is formed in the sampling outer sleeve, one end of the adjusting hole is fixedly connected with a fixed baffle, and an arc-shaped spring is fixedly connected between the adjusting shifting piece and the fixed baffle. Compared with the prior art, the sampling device has the advantages that repeated sampling is not needed, time and labor are saved, and operation is convenient.

Description

Technical Field

[0001] This utility model relates to the field of cement testing technology, specifically to a sampling device for cement testing. Background Technology

[0002] Cement, as a core material in the construction industry, directly affects the safety, stability, and service life of buildings. Rigorous quality testing ensures that the physical, chemical, and durability properties of cement meet standards, thereby guaranteeing the structural stability and strength of buildings and preventing construction accidents caused by quality issues. According to the testing standards outlined in GB / T12573-2008 Cement Sampling Method, when sampling bulk cement from the factory, at least 6 kg should be taken within 5 minutes for every 1 / 10 of the sample. A trough-type tube sampler should be used, controlled by rotating the inner tube switch, inserted to a certain depth at an appropriate location, and carefully withdrawn after closing. The sample should be placed in a clean, dry, moisture-proof, sealed container that does not affect the cement's functionality.

[0003] However, existing trough-shaped tube samplers can only extract a small amount of sample each time they are inserted into the cement, requiring repeated insertion of the sampler into the cement for sampling, which greatly affects the sampling efficiency. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The technical problem this invention aims to solve is that existing cement samplers require multiple sampling attempts to complete the sampling, which is time-consuming and labor-intensive, greatly affecting sampling efficiency.

[0006] (II) Technical Solution

[0007] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a sampling device for cement testing, comprising a sampling outer cylinder, a sampling inner cylinder rotatably connected inside the sampling outer cylinder, a first sampling hole and a second sampling hole correspondingly arranged on the sampling outer cylinder and the sampling inner cylinder, a guide shaft rotatably connected inside the sampling inner cylinder, a spiral auger blade that cooperates with the inner wall of the sampling inner cylinder being fixedly connected to the outer wall of the guide shaft, a motor that drives the guide shaft to rotate being fixedly connected to the upper end of the sampling outer cylinder, a downwardly inclined discharge pipe being fixedly connected to the upper end of the sampling inner cylinder, a movable hole that cooperates with the discharge pipe being provided on the sampling outer cylinder, an adjusting plate being provided on the outer wall of the sampling inner cylinder, an adjusting hole that cooperates with the adjusting plate being provided on the sampling outer sleeve, a fixed baffle being fixedly connected to one end of the adjusting hole, and an arc spring being fixedly connected between the adjusting plate and the fixed baffle.

[0008] As an improvement, an incomplete gear is fixedly sleeved on the upper end of the guide shaft, and an arc-shaped rack that meshes with the incomplete gear is fixedly connected to the inner wall of the sampling inner cylinder.

[0009] As an improvement, an arc-shaped limiting slide rod arranged coaxially with the sampling outer cylinder is fixedly connected to one side of the adjusting lever, and the fixed baffle is provided with a sliding hole that cooperates with the arc-shaped limiting slide rod.

[0010] As an improvement, the upper end of the sampling outer cylinder is fixedly connected with handles arranged on both sides.

[0011] As an improvement, one end of the discharge pipe is provided with a detachable discharge hose.

[0012] As an improvement, a conical head is fixedly connected to the bottom surface of the sampling outer cylinder.

[0013] (III) Beneficial Effects

[0014] The advantages of this invention compared to the prior art are as follows: the outer sampling cylinder is inserted into the bulk cement, the driving adjustment plate slides along the adjustment hole, and the inner sampling cylinder rotates along the inner wall of the outer sampling cylinder. When the first sampling hole and the second sampling hole coincide, the cement powder enters the inner sampling cylinder. The motor is started to drive the guide shaft to rotate, and the cement is lifted upward by the spiral auger blades so that the cement can be discharged from the discharge pipe. There is no need to repeatedly sample, which saves time and effort and is easy to operate. Attached Figure Description

[0015] Figure 1 This is an exploded view of a sampling device for cement testing according to this utility model.

[0016] Figure 2 This is a schematic diagram of a sampling device for cement testing according to the present invention.

[0017] Figure 3 This is a cross-section of a sampling device for cement testing according to this utility model. Figure 1 .

[0018] Figure 4 This is a cross-section of a sampling device for cement testing according to this utility model. Figure 2 .

[0019] As shown in the figure: 1. Sampling outer cylinder; 2. Sampling inner cylinder; 3. First sampling hole; 4. Second sampling hole; 5. Guide shaft; 6. Spiral auger blade; 7. Motor; 8. Discharge pipe; 9. Movable hole; 10. Adjusting paddle; 11. Arc spring; 12. Adjusting hole; 13. Fixed baffle; 14. Sliding hole; 15. Handle; 16. Incomplete gear; 17. Arc rack; 18. Discharge hose; 19. Conical head; 20. Arc-shaped limiting slide bar. Detailed Implementation

[0020] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figures 1 to 4 As shown, a sampling device for cement testing includes a sampling outer cylinder 1, with handles 15 fixedly connected to the upper end of the sampling outer cylinder 1 on both sides, and a conical head 19 fixedly connected to the bottom surface of the sampling outer cylinder 1. A sampling inner cylinder 2 is rotatably connected inside the sampling outer cylinder 1. The sampling outer cylinder 1 and the sampling inner cylinder 2 are provided with correspondingly arranged first sampling holes 3 and second sampling holes 4. A guide shaft 5 is rotatably connected inside the sampling inner cylinder 2. A spiral auger blade 6 that cooperates with the inner wall of the sampling inner cylinder 2 is fixedly connected to the outer wall of the sampling outer cylinder 1. A motor 7 that drives the guide shaft 5 to rotate is fixedly connected to the upper end of the sampling outer cylinder 1. A downwardly inclined discharge pipe 8 is fixedly connected to the upper end of the sampling inner cylinder 2. One end of the discharge pipe 8 is provided with a detachable discharge hose 18. The sampling outer cylinder 1 is provided with a movable hole 9 that cooperates with the discharge pipe 8.

[0022] The outer wall of the sampling inner cylinder 2 is provided with an adjusting plate 10, and the outer sampling sleeve is provided with an adjusting hole 12 that cooperates with the adjusting plate 10. One end of the adjusting hole 12 is fixedly connected to a fixing baffle 13. An arc-shaped spring 11 is fixedly connected between the adjusting plate 10 and the fixing baffle 13. An incomplete gear 16 is fixedly sleeved on the upper end of the guide shaft 5. An arc-shaped rack 17 that meshes with the incomplete gear 16 is fixedly connected to the inner wall of the sampling inner cylinder 2. An arc-shaped limiting slide rod 20 that is coaxially arranged with the sampling outer cylinder 1 is fixedly connected to one side of the adjusting plate 10. The fixing baffle 13 is provided with a sliding hole 14 that cooperates with the arc-shaped limiting slide rod 20.

[0023] In practical use, the sampling outer cylinder 1 is inserted into the bulk cement to be sampled through the conical head 19. One end of the sampling hose is placed inside the container. Holding the handles 15 on both sides, the motor 7 is started to drive the guide shaft 5 to rotate. The guide shaft 5 drives the spiral auger blades 6 to rotate. At the same time, the guide shaft 5 drives the incomplete gear 16 to rotate. When the incomplete gear 16 contacts the arc-shaped rack 17, the arc-shaped rack 17 drives the sampling inner cylinder 2 to rotate along the inner wall of the sampling outer cylinder 1. The sampling inner cylinder 2 drives the adjusting plate 10 to slide along the adjusting hole 12, compressing the arc-shaped spring 11 and causing it to deform. The arc-shaped limiting slide rod 20 slides along the sliding hole 14. When the first sampling hole 3 and the second sampling hole 4 coincide, cement powder enters the sampling inner cylinder 2. When the incomplete gear 16 disengages from the arc rack 17, the adjusting plate 10 is pushed by the restoring force of the arc spring 11 to drive the sampling inner cylinder 2 to rotate in the opposite direction and reset, so that the first feed hole and the second feed hole are staggered. At this time, the sampling inner cylinder 2 is in a closed state to prevent the material conveyed in the spiral auger blade 6 from spilling out again. The cement is conveyed upward by the spiral auger blade 6 and discharged through the discharge pipe 8. When discharging, the discharge pipe 8 slides left and right along the movable hole 9 with the sampling inner cylinder 2 to quickly throw the cement outward and prevent blockage.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0025] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

[0026] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A sampling device for cement testing, comprising a sampling outer cylinder (1), wherein a sampling inner cylinder (2) is rotatably connected inside the sampling outer cylinder (1), and the sampling outer cylinder (1) and the sampling inner cylinder (2) are provided with correspondingly arranged first sampling holes (3) and second sampling holes (4), characterized in that: The sampling inner cylinder (2) is rotatably connected to a guide shaft (5). The outer wall of the guide shaft (5) is fixedly connected to a spiral auger blade (6) that cooperates with the inner wall of the sampling inner cylinder (2). The upper end of the sampling outer cylinder (1) is fixedly connected to a motor (7) that drives the guide shaft (5) to rotate. The upper end of the sampling inner cylinder (2) is fixedly connected to a downwardly inclined discharge pipe (8). The sampling outer cylinder (1) is provided with a movable hole (9) that cooperates with the discharge pipe (8). The outer wall of the sampling inner cylinder (2) is provided with an adjusting paddle (10). The sampling outer cylinder (1) is provided with an adjusting hole (12) that cooperates with the adjusting paddle (10). One end of the adjusting hole (12) is fixedly connected to a fixed baffle (13). An arc spring (11) is fixedly connected between the adjusting paddle (10) and the fixed baffle (13).

2. The sampling device for cement testing according to claim 1, characterized in that: An incomplete gear (16) is fixedly sleeved on the upper end of the guide shaft (5), and an arc-shaped rack (17) that meshes with the incomplete gear (16) is fixedly connected to the inner wall of the sampling inner cylinder (2).

3. A sampling device for cement testing according to claim 1, characterized in that: An arc-shaped limiting slide rod (20) coaxially arranged with the sampling outer cylinder (1) is fixedly connected to one side of the adjusting lever (10), and a sliding hole (14) that cooperates with the arc-shaped limiting slide rod (20) is provided on the fixed baffle (13).

4. A sampling device for cement testing according to claim 1, characterized in that: The upper end of the sampling outer cylinder (1) is fixedly connected with handles (15) arranged on both sides.

5. A sampling device for cement testing according to claim 1, characterized in that: One end of the discharge pipe (8) is provided with a detachable discharge hose (18).

6. A sampling device for cement testing according to claim 1, characterized in that: A conical head (19) is fixedly connected to the bottom surface of the sampling outer cylinder (1).

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