Sampling device for premixed concrete

Abstract

The utility model provides a sampling device for premixed concrete, which relates to the technical field of concrete sampling and comprises a fixing column, a top plate is fixedly mounted at the bottom of the fixing column, a fixing sleeve is fixedly mounted on the outer wall of the top plate, four uniformly distributed through holes are formed in the outer wall of the fixing sleeve in a penetrating manner, and feeding pipes are slidably mounted in the four through holes. The outer wall of the fixing column is rotationally connected with a rotating plate through a bearing. According to the concrete cleaning device, when the feeding pipes are cleaned, a worker rotates a rotating sleeve, one of the feeding pipes enters an opening, then the worker pulls two push plates, the push plates drive a jacking column to move, a third spring is stretched, the jacking column enters the feeding pipes, concrete in the feeding pipes is pushed out, cleaning can be completed, then the rotating sleeve is rotated by 90 degrees, and the feeding pipes are cleaned. The two push plates continue to be pulled, at the moment, the two jacking columns enter the other two feeding pipes which are not cleaned, in this way, cleaning of the feeding pipes is completed, and the recycling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete sampling, in particular to a sampling device for ready-mixed concrete. Background Art

[0002] Ready-mixed concrete generally refers to commercial concrete, a general term for engineering composite materials in which aggregates are bonded together by cementitious materials. When sampling and testing ready-mixed concrete, sampling tools are required. To improve the accuracy of the test, samples must be taken from different layers of concrete. In existing technologies, sampling from different layers of concrete requires a step-by-step process. This involves first inserting the sampling tool to a certain depth, then pulling it out to retrieve a sample from that layer. Then, the sampling tool is inserted again to a different depth, then pulled out to retrieve a sample from another layer. This process is repeated to retrieve samples from different layers. This method requires frequent insertion and removal of the sampling tool, which is time-consuming and labor-intensive, significantly impacting sampling efficiency.

[0003] In the prior art, such as Chinese Patent CN 218212161 U, a sampling device for ready-mixed concrete is disclosed. The device comprises a sampling tube with a cross-shaped partition installed within the tube, which divides the inner cavity of the sampling tube into four equal areas. A guide tube is slidably mounted on the wall of the sampling tube, each of which communicates with the four areas. A matching rotating sleeve is mounted on the outer side of the sampling tube. The outer wall of the guide tube near one end of the rotating sleeve is spherical in structure, and the rotating sleeve has an opening that matches the end of the guide tube. An elastic component is mounted between the guide tube and the sampling tube. A sampling rod is fixedly mounted at the center of the top of the sampling tube. A rotating disk is rotatably connected to the rod wall near the top of the sampling rod via a bearing. A support rod is fixedly connected between the rotating disk and the rotating sleeve. This utility model not only facilitates sampling of different layers of concrete, but also eliminates the need for frequent insertion and removal of the sampling tool, thereby greatly improving concrete sampling efficiency. However, this patent also has the following problems.

[0004] In the above patent, although a guide tube is provided for sampling concrete at different layers, the tube cover needs to be removed from the sampling tube when discharging the concrete. Then the sample taken out will leave the sampling tube, but some concrete may remain in the guide tube during sampling, and it is difficult for the concrete to leave the guide tube during discharging. Therefore, it may cause waste and may affect the next sampling. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the prior art that when discharging, some concrete may be left in the material guide pipe during sampling, and it is difficult for the material to leave the material guide pipe during discharge, thus causing waste. A sampling device for ready-mixed concrete is proposed.

[0006] In order to achieve the above-mentioned object, the utility model adopts the following technical solution: A sampling device for ready-mixed concrete, comprising a fixed column, a top plate fixedly mounted on the bottom of the fixed column, a fixed sleeve fixedly mounted on the outer wall of the top plate, four evenly distributed through holes penetrated through the outer wall of the fixed sleeve, a feed pipe is slidably mounted inside each of the four through holes, the outer wall of the fixed column is rotatably connected to a rotating plate through a bearing, two connecting rods fixedly mounted on the bottom of the rotating plate, a rotating sleeve fixedly mounted on the bottom of the two connecting rods, the inner wall of the rotating sleeve is fitted with the outer wall of the fixed sleeve, an opening is penetrated through the inner wall of the rotating sleeve, two storage grooves are symmetrically provided on the inner wall of the rotating sleeve, a third spring is fixedly mounted on the inner wall of the two storage grooves, one end of the two third springs is fixedly mounted on the top of the two top columns, a push plate is fixedly mounted on the top of the two top columns, the inner wall of the two storage grooves is penetrated through a through opening, the two push plates are slidably connected to the two through openings respectively, a limiting rod is fixedly mounted on the outer wall of the two push plates, and the ends of the two limiting rods away from the push plates are slidably plugged into the rotating sleeve.

[0007] Preferably, the inner walls of the four through holes are symmetrically provided with slide grooves, the inner walls of two of the slide grooves are fixedly installed with second springs, one end of the two second springs is fixedly installed with a slider, and the opposite sides of the two sliders are fixedly connected to the feed pipe.

[0008] Preferably, a fixing plate is fixedly mounted on the outer wall of the rotating sleeve, two first springs are fixedly mounted on the bottom of the fixing plate, and a partition is fixedly mounted on the bottom of the two first springs.

[0009] Preferably, a slide plate is fixedly mounted on the top of the partition, and a pull plate is fixedly mounted on the top of the slide plate passing through the fixed plate.

[0010] Preferably, a connecting cover is threadedly connected to the bottom of the fixing sleeve, and a top block is fixedly installed on the bottom of the connecting cover.

[0011] Preferably, a cross plate is fixedly installed on the bottom of the top plate, the bottom of the cross plate is in contact with the top of the connecting cover, and the inner wall of the fixing sleeve is in contact with the outer wall of the cross plate.

[0012] Preferably, baffles are fixedly installed on both sides of the outside of the two push plates, and the bottom of the baffle fits with the top of the rotating sleeve.

[0013] Compared with the prior art, the advantages and positive effects of the present invention are:

[0014] 1. In the utility model, when cleaning the feed pipe, the staff rotates the rotating sleeve, and one of the feed pipes enters the opening. Then the staff pulls the two push plates, and the push plates drive the top column to move. The third spring is stretched, and the top column enters the inside of the feed pipe and pushes out the concrete inside. In this way, the cleaning is completed. Then the rotating sleeve is rotated 90 degrees, and the two push plates are continued to be pulled. At this time, the two top columns respectively enter the other two feed pipes that have not been cleaned. In this way, the feed pipe is completely cleaned, thereby improving the recycling efficiency.

[0015] 2. In the present invention, when sampling, the staff pulls the pull plate, and the pull plate drives the slide plate and the partition to rise. The first spring is compressed, and the partition leaves the opening. The staff inserts the top block into the concrete and then pushes the fixed column. When the feed pipe moves to the side of the concrete, the concrete will enter the feed pipe and finally enter between the cross plate and the fixed sleeve. Then the staff releases the pull plate, and the partition drops under the elastic force of the first spring and is removed to block the opening. This can prevent concrete from entering the opening when the rotating sleeve rotates, thereby affecting the next sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model provides an overall three-dimensional diagram of a sampling device for ready-mixed concrete;

[0017] Figure 2 A cross-sectional view of a fixing sleeve of a sampling device for ready-mixed concrete is provided in the utility model;

[0018] Figure 3 A three-dimensional diagram of a fixing plate of a sampling device for ready-mixed concrete proposed in the present invention;

[0019] Figure 4 for Figure 2 Enlarged view of point A.

[0020] Legend: 1. Fixed column; 2. Rotating plate; 3. Connecting rod; 4. Rotating sleeve; 5. Top plate; 6. Fixed sleeve; 7. Slide plate; 8. Pull plate; 9. Opening; 10. Feed pipe; 11. Connecting cover; 12. Top block; 13. Cross plate; 14. Push plate; 15. Baffle; 16. Fixed plate; 17. First spring; 18. Partition; 19. Through hole; 20. Slide groove; 21. Second spring; 22. Slider; 23. Storage slot; 24. Third spring; 25. Top column; 26. Through-hole; 27. Limit rod. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1, as Figure 1-Figure 4 As shown, the utility model provides a sampling device for ready-mixed concrete, including a fixed column 1, a top plate 5 is fixedly installed at the bottom of the fixed column 1, a fixed sleeve 6 is fixedly installed on the outer wall of the top plate 5, four evenly distributed through holes 19 are opened through the outer wall of the fixed sleeve 6, and a feed pipe 10 is slidably installed inside the four through holes 19. The outer wall of the fixed column 1 is rotatably connected to the rotating plate 2 through a bearing, and two connecting rods 3 are fixedly installed at the bottom of the rotating plate 2. The bottom of the two connecting rods 3 is fixedly installed with a rotating sleeve 4, and the inner wall of the rotating sleeve 4 is in contact with the outer wall of the fixed sleeve 6. The rotating sleeve An opening 9 is formed through the inner wall of the rotating sleeve 4. Two storage grooves 23 are symmetrically formed on the inner wall of the two storage grooves 23. A third spring 24 is fixedly mounted on the inner wall of each of the two storage grooves 23. A top column 25 is fixedly mounted on one end of each of the two third springs 24. A push plate 14 is fixedly mounted on the top of each of the two top columns 25. A through-hole 26 is formed through the inner wall of each of the two storage grooves 23. The two push plates 14 are slidably connected to the two through-holes 26 respectively. A limiting rod 27 is fixedly mounted on the outer wall of each of the two push plates 14. The ends of the two limiting rods 27 away from the push plates 14 are slidably plugged into the rotating sleeve 4.

[0024] The effect achieved by the entire embodiment 1 is that when cleaning the feed pipe 10, the staff rotates the rotating sleeve 4, one of the feed pipes 10 enters the opening 9, and then the staff pulls the two push plates 14, the push plates 14 drive the top column 25 to move, the third spring 24 is stretched, and the top column 25 enters the interior of the feed pipe 10 and pushes out the concrete inside it, so that the cleaning is completed, and then the rotating sleeve 4 is rotated 90 degrees, and the two push plates 14 are continued to be pulled. At this time, the two top columns 25 respectively enter the other two uncleaned feed pipes 10, so that the feed pipe 10 is completely cleaned, thereby improving the recycling efficiency.

[0025] Example 2, as Figure 1-Figure 4 As shown, further, the inner walls of the four through holes 19 are symmetrically provided with slide grooves 20, the inner walls of the two slide grooves 20 are fixedly installed with second springs 21, one end of the two second springs 21 is fixedly installed with a slider 22, and the opposite sides of the two sliders 22 are fixedly connected to the feed pipe 10.

[0026] Furthermore, a fixing plate 16 is fixedly mounted on the outer wall of the rotating sleeve 4 , two first springs 17 are fixedly mounted on the bottom of the fixing plate 16 , and a partition plate 18 is fixedly mounted on the bottom of the two first springs 17 .

[0027] Furthermore, a slide plate 7 is fixedly installed on the top of the partition 18 , and a pull plate 8 is fixedly installed on the top of the slide plate 7 through the fixed plate 16 .

[0028] Furthermore, a connecting cover 11 is threadedly connected to the bottom of the fixing sleeve 6 , and a top block 12 is fixedly installed on the bottom of the connecting cover 11 .

[0029] Furthermore, a cross plate 13 is fixedly installed at the bottom of the top plate 5, the bottom of the cross plate 13 fits with the top of the connecting cover 11, and the inner wall of the fixing sleeve 6 fits with the outer wall of the cross plate 13 to prevent the concrete of different compartments from contacting each other.

[0030] Furthermore, baffles 15 are fixedly installed on both sides of the outside of the two push plates 14 , and the bottom of the baffle 15 fits with the top of the rotating sleeve 4 .

[0031] The effect achieved by the entire embodiment 2 is that when sampling, the staff pulls the pull plate 8, and the pull plate 8 drives the slide plate 7 and the partition 18 to rise, the first spring 17 is compressed, and the partition 18 leaves the opening 9. The staff inserts the top block 12 into the concrete, and then pushes the fixed column 1. When the feed pipe 10 moves to the side of the concrete, the concrete will enter the feed pipe 10 and finally enter between the cross plate 13 and the fixed sleeve 6. Then the staff releases the pull plate 8, and the partition 18 drops under the elastic force of the first spring 17, and is disassembled to block the opening 9. This can prevent the concrete from entering the opening 9 when the rotating sleeve 4 rotates, thereby affecting the next sampling.

[0032] Working principle: When sampling, the staff pulls the pull plate 8, and the pull plate 8 drives the slide plate 7 and the partition 18 to rise. The first spring 17 is compressed, and the partition 18 leaves the opening 9. The staff inserts the top block 12 into the concrete, and then pushes the fixed column 1. When the feed pipe 10 moves to the side of the concrete, the concrete will enter the feed pipe 10 and finally enter between the cross plate 13 and the fixed sleeve 6. Then the staff releases the pull plate 8, and the partition 18 drops under the elastic force of the first spring 17, and is removed to block the opening 9. This prevents the concrete from entering the opening 9 when the rotating sleeve 4 rotates, thereby affecting the next sampling. Then the staff rotates the rotating plate 2, and the rotating sleeve 4 rotates. The opening 9 contacts the inclined surface of the feed pipe 10 and is squeezed into the through hole 19. The second spring 21 is stretched. When it moves to the next level of concrete, the opening 9 is rotated to the side of another feed pipe 10. The feed pipe 10 enters the opening 9 under the elastic force of the second spring 21. During discharge, the staff rotates the connecting sleeve 11 and removes the connecting sleeve 11 to recycle the concrete inside the fixed sleeve 6. When cleaning the feed pipe 10, the staff rotates the rotating sleeve 4, and one of the feed pipes 10 enters the opening 9. Then the staff pulls the two push plates 14, and the push plates 14 drive the top column 25 to move. The third spring 24 is stretched, and the top column 25 enters the inside of the feed pipe 10 to push out the concrete inside. In this way, the cleaning is completed. Then the rotating sleeve 4 is rotated 90 degrees, and the two push plates 14 are continued to be pulled. At this time, the two top columns 25 respectively enter the other two uncleaned feed pipes 10. In this way, the feed pipe 10 is completely cleaned, thereby improving the recycling efficiency.

[0033] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A sampling device for ready-mixed concrete, comprising a fixed column (1), characterized in that: The bottom of the fixed column (1) is fixedly mounted with a top plate (5), the outer wall of the top plate (5) is fixedly mounted with a fixed sleeve (6), the outer wall of the fixed sleeve (6) is penetrated with four evenly distributed through holes (19), the four through holes (19) are slidably mounted with a feed pipe (10), the outer wall of the fixed column (1) is rotatably connected with a rotating plate (2) through a bearing, the bottom of the rotating plate (2) is fixedly mounted with two connecting rods (3), the bottoms of the two connecting rods (3) are fixedly mounted with a rotating sleeve (4), the inner wall of the rotating sleeve (4) is in contact with the outer wall of the fixed sleeve (6), the inner wall of the rotating sleeve (4) is penetrated with an opening (9), the Two storage slots (23) are symmetrically provided on the inner wall of the rotating sleeve (4), and a third spring (24) is fixedly installed on the inner wall of each of the two storage slots (23), and a top column (25) is fixedly installed on one end of each of the two third springs (24), and a push plate (14) is fixedly installed on the top of each of the two top columns (25). A through-hole (26) is provided through the inner wall of each of the two storage slots (23), and the two push plates (14) are respectively slidably connected to the two through-holes (26). A limiting rod (27) is fixedly provided on the outer wall of each of the two push plates (14), and the ends of the two limiting rods (27) away from the push plate (14) are slidably plugged into the rotating sleeve (4).

2. A sampling device for ready-mixed concrete according to claim 1, characterized in that: The inner walls of the four through holes (19) are symmetrically provided with slide grooves (20), the inner walls of two slide grooves (20) are fixedly installed with second springs (21), one end of the two second springs (21) is fixedly installed with a slider (22), and the opposite sides of the two sliders (22) are fixedly connected to the feed pipe (10).

3. A sampling device for ready-mixed concrete according to claim 1, characterized in that: A fixing plate (16) is fixedly mounted on the outer wall of the rotating sleeve (4), two first springs (17) are fixedly mounted on the bottom of the fixing plate (16), and a partition plate (18) is fixedly mounted on the bottom of the two first springs (17).

4. A sampling device for ready-mixed concrete according to claim 3, characterized in that: A slide plate (7) is fixedly mounted on the top of the partition (18), and a pull plate (8) is fixedly mounted on the top of the slide plate (7) which passes through the fixed plate (16).

5. The sampling device for ready-mixed concrete according to claim 1, characterized in that: The bottom of the fixing sleeve (6) is threadedly connected to a connecting cover (11), and the bottom of the connecting cover (11) is fixedly mounted with a top block (12).

6. A sampling device for ready-mixed concrete according to claim 1, characterized in that: A cross plate (13) is fixedly mounted on the bottom of the top plate (5), the bottom of the cross plate (13) is in contact with the top of the connecting cover (11), and the inner wall of the fixing sleeve (6) is in contact with the outer wall of the cross plate (13).

7. A sampling device for ready-mixed concrete according to claim 1, characterized in that: Baffles (15) are fixedly mounted on both sides of the outside of the two push plates (14), and the bottom of the baffle (15) fits in contact with the top of the rotating sleeve (4).

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