Anti-crack concrete sandstone aggregate sampling device

Abstract

The utility model provides an anti-crack concrete sandstone aggregate sampling device, which belongs to the technical field of sampling equipment and comprises a sampling table, a sampling box and a driving mechanism, the sampling table is arranged on a rack of the conveying belt in a sliding manner, and the sampling table stretches across the rack of the conveying belt; the sampling box is in sliding fit with the sampling table in the height direction; wherein the opening direction of the sampling box is opposite to the conveying direction of the materials, so that the materials enter the sampling box; when the sampling box is positioned on the sampling table, the opening end of the sampling box is in contact with the end part of the sampling table, and the bottom wall in the sampling box is coplanar with the upper surface of the sampling table; the driving mechanism is arranged on the sampling table; the driving end of the driving mechanism is connected with the sampling box to drive the sampling box to lift; through the arrangement, an operator does not need to extract gravel aggregate from the conveying belt, and potential safety hazards can be reduced.

Description

Technical Field

[0001] This utility model belongs to the field of sampling equipment technology, specifically relating to a sampling device for sand and gravel aggregates in crack-resistant concrete. Background Technology

[0002] In the production process of crack-resistant concrete, it is necessary to sample and test the sand and gravel aggregates to determine whether the particle size of the sand and gravel aggregates meets the requirements of crack-resistant concrete. The sampling method in the existing technology is manual sampling, that is, the operator holds a sampling tube to collect sand and gravel aggregates from the conveyor belt, and then observes whether the particle size of the sampled sand and gravel aggregates is uniform. In order to ensure the reliability of sampling, multiple samplings are usually required. Manual sampling during the transportation of sand and gravel aggregates poses safety hazards. Utility Model Content

[0003] This utility model provides a sampling device for sand and gravel aggregates in crack-resistant concrete, which aims to solve the problem of safety hazards in the sampling methods of the prior art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A sampling device for sand and gravel aggregate in crack-resistant concrete is provided, comprising:

[0006] A sampling platform is slidably mounted on the frame of the conveyor belt, and the sampling platform spans the frame of the conveyor belt;

[0007] A sampling box is slidably fitted with the sampling platform along the height direction; wherein the opening direction of the sampling box is opposite to the material conveying direction so that the material enters the sampling box; when the sampling box is located on the sampling platform, the opening end of the sampling box contacts the end of the sampling platform, and the bottom wall inside the sampling box is coplanar with the upper surface of the sampling platform.

[0008] A drive mechanism is provided on the sampling stage; the drive end of the drive mechanism is connected to the sampling box to drive the sampling box to rise and fall.

[0009] In one possible implementation, the sampling stage has a horizontally arranged clearance groove, the width of which is greater than the length of the sampling box; the sampling box is located directly below the clearance groove.

[0010] In one possible implementation, the drive mechanism includes:

[0011] A support frame is installed on the sampling stage;

[0012] A drive cylinder is provided, with its cylinder body connected to the support frame; the piston rod of the drive cylinder is connected to the sampling box.

[0013] In one possible implementation, the support frame is laterally slidably disposed on the sampling stage, and a sliding limiting structure is provided between the support frame and the sampling stage.

[0014] In one possible implementation, the sampling stage is provided with a groove, and the sliding limiting structure includes a slider that slides with the groove, and the slider is fixed on the support frame.

[0015] In one possible implementation, the support frame has a side plate spanning the clearance groove, and a receiving cavity is formed between the support frame and the sampling stage; the side plate has a guide plate on one side of the receiving cavity; when the sampling box is located in the receiving cavity, the guide plate is used to fill the gap between the opening end of the sampling box and the sampling stage.

[0016] In one possible implementation, a pusher plate is slidably disposed inside the sampling box, and the sampling box has an avoidance hole at one end opposite the open end, the area of ​​the avoidance hole being smaller than the area of ​​the pusher plate.

[0017] In one possible implementation, the sampling stage has a push cylinder, the piston rod of which can pass through an clearance hole to push the push plate inside the sampling box.

[0018] In one possible implementation, the piston rod of the push cylinder has a top plate, and the area of ​​the clearance hole is larger than the area of ​​the top plate, so that the top plate can slide into the sampling box.

[0019] In one possible implementation, the outer side of the side plate has a bent portion, the bent portion has a first positioning hole, and the sampling stage has a second positioning hole aligned with the first positioning hole;

[0020] When the first positioning hole and the second positioning hole are aligned, the bent part and the sampling stage are positioned by a pin.

[0021] This utility model provides a sampling device for sand and gravel aggregate in crack-resistant concrete. Compared with the prior art, the sampling box is driven to descend onto the conveyor belt by a drive mechanism, with the sampling box facing the material. The sand and gravel aggregate can enter the sampling box under the conveyor belt. After sampling, the drive mechanism drives the sampling box to return to its original position. The movement stops when the sampling box moves to the sampling platform. At this time, the operator can scoop the sand and gravel aggregate from the sampling box onto the sampling platform to observe whether the sampled sand and gravel aggregate is qualified. With the above-mentioned settings of this application, there is no need for the operator to extract the sand and gravel aggregate from the conveyor belt, which can reduce safety hazards. Attached Figure Description

[0022] Figure 1 A schematic diagram of a crack-resistant concrete aggregate sampling device installed on a frame, provided for an embodiment of this utility model;

[0023] Figure 2 for Figure 1 Enlarged diagram of section A in the middle;

[0024] Figure 3 A schematic diagram of a crack-resistant concrete aggregate sampling device provided in an embodiment of this utility model;

[0025] Figure 4 A schematic diagram showing the upward sliding position of the sampling box of a crack-resistant concrete aggregate sampling device provided in an embodiment of this utility model.

[0026] Figure 5 A schematic diagram of the support frame portion of a crack-resistant concrete aggregate sampling device provided in an embodiment of this utility model;

[0027] Figure 6 A schematic diagram of the sampling box portion of a crack-resistant concrete aggregate sampling device provided in an embodiment of this utility model;

[0028] Figure 7 This is a schematic diagram of the support plate portion of a crack-resistant concrete aggregate sampling device provided in an embodiment of the present invention.

[0029] Explanation of reference numerals in the attached drawings: 1. Sampling stage; 11. Clearance groove; 12. Slide groove; 13. Push cylinder; 131. Top plate; 2. Sampling box; 21. Clearance hole; 3. Drive mechanism; 31. Support frame; 32. Drive cylinder; 33. Slider; 34. Side plate; 341. Bending part; 35. Guide plate; 36. Support plate; 4. Conveyor belt; 41. Frame; 5. Push plate; 6. Pin. Detailed Implementation

[0030] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0031] Please refer to the following: Figures 1 to 7This invention provides a sampling device for crack-resistant concrete aggregates. The device includes a sampling platform 1, a sampling box 2, and a driving mechanism 3. The sampling platform 1 is slidably mounted on the frame 41 of the conveyor belt 4, and spans the frame 41. The sampling box 2 is slidably fitted with the sampling platform 1 along its height direction. The opening of the sampling box 2 is opposite to the material conveying direction, allowing material to enter the sampling box 2. When the sampling box 2 is positioned on the sampling platform 1, the opening end of the sampling box 2 contacts the end of the sampling platform 1, and the bottom wall of the sampling box 2 is coplanar with the upper surface of the sampling platform 1. The driving mechanism 3 is mounted on the sampling platform 1. The driving end of the driving mechanism 3 is connected to the sampling box 2 to drive the sampling box 2 to move up and down.

[0032] This utility model provides a sampling device for sand and gravel aggregate in crack-resistant concrete. Compared with the prior art, the sampling box 2 is driven down onto the conveyor belt 4 by the driving mechanism 3, with the sampling box 2 facing the material. The sand and gravel aggregate can enter the sampling box 2 under the conveying action of the conveyor belt 4. After sampling is completed, the driving mechanism drives the sampling box 2 to reset upward. The movement stops when the sampling box 2 moves upward to the sampling platform 1. At this time, the operator can scoop the sand and gravel aggregate in the sampling box 2 onto the sampling platform 1 to observe whether the sampled sand and gravel aggregate is qualified. With the above-mentioned settings of this application, there is no need for the operator to extract the sand and gravel aggregate from the conveyor belt 4, which can reduce safety hazards.

[0033] In some embodiments, such as Figures 1 to 7 As shown, the sampling stage 1 has a horizontally arranged clearance groove 11, the width of which is greater than the length of the sampling box 2; the sampling box 2 is located directly below the clearance groove 11; the driving mechanism 3 includes a support frame 31 and a driving cylinder 32; the support frame 31 is set on the sampling stage 1; the cylinder body of the driving cylinder 32 is connected to the support frame 31; the piston rod of the driving cylinder 32 is connected to the sampling box 2.

[0034] It should be noted that the support frame 31 supports the drive cylinder 32 and the sampling box 2. The extension of the piston rod of the drive cylinder 32 allows the sampling box 2 to move downwards to the position of the conveyor belt 4, facilitating the entry of sand and gravel aggregate into the sampling box 2. The retraction of the piston rod of the drive cylinder 32 allows the sampling box 2 to return to its original position. The clearance groove 11 is located in the middle of the sampling platform 1; therefore, the support frame 31 is also located in the middle of the sampling platform 1. This arrangement makes the support frame 31 more stable than placing it on one side of the sampling platform 1.

[0035] In some embodiments, such as Figures 1 to 7As shown, the support frame 31 is slidably mounted on the sampling table 1, and a sliding limiting structure is provided between the support frame 31 and the sampling table 1; the sampling table 1 is provided with a sliding groove 12, and the sliding limiting structure includes a slider 33 that slides with the sliding groove 12, and the slider 33 is fixed on the support frame 31.

[0036] It should be noted that the support frame 31 slides with the slide groove 12 through the slider 33, which can guide the support frame 31 during the lateral sliding process. Through the lateral sliding of the support frame 31, samples can be taken from both sides of the conveyor belt 4 according to the actual situation. Since the sampling platform 1 can slide on the frame 41 of the conveyor belt 4, the sampling position can be selected according to the actual situation, thus improving the sampling flexibility.

[0037] In some embodiments, such as Figures 1 to 7 As shown, the support frame 31 has a side plate 34 that spans the clearance groove 11, and a receiving cavity is formed between the support frame 31 and the sampling stage 1; the side plate 34 has a guide plate 35 on one side of the receiving cavity; when the sampling box 2 is located in the receiving cavity, the guide plate 35 is used to fill the gap between the opening end of the sampling box 2 and the sampling stage 1.

[0038] It should be noted that the guide plate 35 and the side plate 34 are fixed together by bolts; when the sampling box 2 slides upward into the receiving cavity, the guide plate 35 can fill the gap between the opening end of the sampling box 2 and the sampling stage 1, thereby reducing the possibility of the material in the sampling box 2 falling out from the gap between the sampling box 2 and the sampling stage 1 during the outward movement of the material.

[0039] In some embodiments, such as Figures 1 to 7 As shown, a push plate 5 is slidably provided inside the sampling box 2, and the sampling box 2 has an avoidance hole 21 at one end opposite to the opening end. The area of ​​the avoidance hole 21 is smaller than the area of ​​the push plate 5.

[0040] It should be noted that by setting a push plate 5 inside the sampling box 2, when the material enters the sampling box 2, the push plate 5 can slide backward into place under the push of the material; when the sampling box 2 slides onto the sampling table 1, the operator can push the push plate 5 by hand to push the material in the sampling box 2 onto the sampling table 1; the operator can also use a tool to push the push plate 5.

[0041] In some embodiments, such as Figures 1 to 7 As shown, the sampling stage 1 has a push cylinder 13, the piston rod of the push cylinder 13 can pass through the clearance hole 21 to push the push plate 5 inside the sampling box 2; a support plate 36 is fixedly provided on the guide plate 35, and the push cylinder 13 is connected to the support plate 36; the piston rod of the push cylinder 13 has a top plate 131, the area of ​​the clearance hole 21 is larger than the area of ​​the top plate 131, so that the top plate 131 can slide into the sampling box 2.

[0042] By setting up a push cylinder 13, automatic material pushing can be achieved. After the sampling box 2 is reset upwards, the piston rod of the push cylinder 13 extends, thereby pushing the push plate 5 out of the sampling box 2. The material in the sampling box 2 can be pushed onto the sampling platform 1, making it convenient for the operator to observe the sampled material. When the sampled material is qualified, the operator can scrape the material on the sampling platform 1 onto the conveyor belt 4 below.

[0043] In some embodiments, such as Figures 1 to 7 As shown, the side plate 34 has a bent portion 341 on its outer side, and a first positioning hole on the bent portion 341. The sampling stage 1 has a second positioning hole aligned with the first positioning hole. When the first positioning hole and the second positioning hole are aligned, the bent portion 341 and the sampling stage 1 are positioned by a pin 6.

[0044] It should be noted that after the support frame 31 slides into place, the first positioning hole and the second positioning hole are aligned. At this time, the position of the support frame 31 can be positioned by the pin 6 being inserted into the first positioning hole and the second positioning hole. During normal sampling, the relative sliding between the support frame 31 and the sampling stage 1 can be reduced.

[0045] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for sampling anti-cracking concrete aggregate, characterized in that, The sampling station is slidably arranged on the frame of the conveying belt and crosses the frame of the conveying belt. The sampling box is slidably arranged along the height direction of the sampling station, and the opening direction of the sampling box is opposite to the conveying direction of the materials so that the materials enter the sampling box. The opening end of the sampling box is in contact with the end of the sampling station when the sampling box is on the sampling station, and the bottom wall in the sampling box is coplanar with the upper surface of the sampling station. The drive mechanism is arranged on the sampling station, and the driving end of the drive mechanism is connected with the sampling box to drive the sampling box to ascend and descend.

2. A device for sampling concrete aggregate as claimed in claim 1, wherein, The sampling station is provided with a lateral avoiding groove, and the width of the avoiding groove is greater than the length of the sampling box.

3. A device for sampling concrete aggregate as claimed in claim 2, wherein, The drive mechanism comprises: The support frame is arranged on the sampling station. The driving cylinder is connected with the support frame, and the piston rod of the driving cylinder is connected with the sampling box.

4. A device for sampling concrete aggregate as claimed in claim 3, wherein, The support frame is slidably arranged on the sampling station, and the sliding limiting structure is arranged between the support frame and the sampling station.

5. A device for sampling concrete aggregate as claimed in claim 4, wherein, The sampling station is provided with a sliding groove, and the sliding limiting structure comprises a sliding block slidably arranged in the sliding groove.

6. A device for sampling concrete aggregate as claimed in claim 3, wherein, The support frame is provided with a side plate crossing the avoiding groove, and the support frame and the sampling station form a containing cavity.

7. A device for sampling concrete aggregate as claimed in claim 2, wherein, The side plate is provided with a guide plate on one side of the containing cavity.

8. A device for sampling concrete aggregate as claimed in claim 7, wherein, The guide plate is used to fill the gap between the opening end of the sampling box and the sampling station when the sampling box is in the containing cavity.

9. A device for sampling concrete aggregate as claimed in claim 8, wherein, The sampling box is slidably arranged with a push plate, and the sampling box is provided with an avoiding hole at the end opposite to the opening end.

10. A device for sampling concrete aggregate as claimed in claim 6, wherein, The area of the avoiding hole is smaller than the area of the push plate. The sampling station is provided with a push cylinder, and the piston rod of the push cylinder can pass through the avoiding hole to push the push plate in the sampling box. The piston rod of the push cylinder is provided with a top plate, and the area of the avoiding hole is greater than the area of the top plate so that the top plate can slide into the sampling box. The outer side of the side plate is provided with a bending part, and the bending part is provided with a first positioning hole. The sampling station is provided with a second positioning hole aligned with the first positioning hole. When the first positioning hole is aligned with the second positioning hole, the bending part and the sampling station are positioned by the pin shaft.

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