Rapid impact crushing device for soil sample

Abstract

The utility model relates to the technical field of soil sample crushing, and discloses a rapid soil sample impact crushing device which comprises a base, a bowl body for containing a soil sample and a support are arranged at the top of the base, a lifting driving device is installed at the top of the support, and a lifting rod is installed at the driving end of the lifting driving device. When the soil sample impact crushing device is used, the impact crushing head is in contact with a soil sample to realize impact crushing of the soil sample, and in the process, the pressing plate presses the frame, so that the frame is folded, soil which is outwards diffused under the impact force of the impact crushing head enters an area expanded due to folding of the frame, and the soil is crushed along with upward movement of the impact crushing head. When the frame is folded, the frame is reset, so that the soil entering the area expanded due to folding of the frame is pushed by the frame and returns to the middle position of the bowl body again, the soil sample close to the peripheral position can be fully impacted and crushed, and the using effect is extremely good.

Description

Technical Field

[0001] The utility model relates to the technical field of soil sample crushing, in particular to a soil sample rapid impact crushing device. Background Art

[0002] At present, in the analysis of environmental pollutants, when pre-treating soil samples, the samples are usually air-dried first, then broken with a rubber hammer or crushed with a glass rod or wooden stick, and then further ground through a 2 mm sieve. However, during the crushing process, the soil samples are easily splashed, resulting in sample loss and environmental pollution. Sometimes, when encountering harder soil blocks, the impact hammer cannot break them well. Secondly, if a person repeatedly hits with a handheld rubber hammer, it will not only increase the labor intensity, but also easily cause fatigue in the hands, which is not conducive to multiple powdering.

[0003] In a Chinese patent with publication number CN 215694233 U, a soil sample rapid impact crushing device is disclosed. It includes: a workbench, a mortar for holding samples is arranged on the workbench, a mounting frame arranged on the workbench, and a lifting drive assembly arranged on the mounting frame. A sample crushing assembly is arranged on the lifting drive assembly and located at a corresponding position above the mortar. The sample crushing assembly includes: a mounting frame arranged on the lifting drive assembly, an air hammer arranged on the mounting frame, an impact reset assembly sleeved on the output end of the air hammer and located on the mounting frame, a connecting seat arranged on the air hammer, a safety shield arranged on the mounting frame, and an impact hammer arranged on the connecting seat and passing through the safety shield. Through the above-mentioned arrangement, soil splashing is prevented when crushing the soil, sample loss and environmental pollution are avoided, the conventional method of repeatedly knocking up and down with a handheld punch is improved, work efficiency is improved, and the crushing speed is fast, which reduces the labor intensity of workers.

[0004] However, when the prior art is used, the soil sample in the mortar is not conveniently positioned when the air hammer repeatedly impacts, and there may be a situation where the soil sample in some positions cannot be fully impacted and crushed. Utility Model Content

[0005] The utility model aims to solve the problems existing in the prior art and proposes a soil sample rapid impact crushing device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A soil sample rapid impact crushing device comprises a base, a bowl body and a support for holding soil samples are arranged on the top of the base, a lifting drive device is installed on the top of the support, a lifting rod is installed on the driving end of the lifting drive device, a fixing plate is fixedly installed on the outer side of the lifting rod, a cover plate is installed on the bottom of the fixing plate through a spring assembly, a pressing plate is installed on the bottom of the cover plate, the lifting rod moves vertically and penetrates the cover plate and the pressing plate, and an impact crushing head is installed on the bottom end;

[0008] A frame is arranged inside the bowl body, and the frame includes an elastic foldable bracket. A plurality of the elastic foldable brackets are arranged in a ring array inside the bowl body, and flexible limiting members are arranged on the periphery of the plurality of the elastic foldable brackets.

[0009] Preferably, the flexible limiting member comprises two connecting rods, and the two connecting rods are connected by a torsion spring.

[0010] Preferably, the flexible limiting member is made of polyvinyl chloride plastic cloth, and is wrapped around the outer periphery of a plurality of the elastic foldable brackets, and the top of the flexible limiting member is in a circular ring shape.

[0011] Preferably, an embedded block is installed at the bottom of the bowl body, a slot is provided at the top of the base, and the embedded block is movably embedded in the slot, both sides of the top of the embedded block are provided with embedded grooves, and limit blocks are installed on both sides of the base through rotation of a rotating shaft, and the end shape of the limit block is adapted to the embedded groove.

[0012] Preferably, a spring is installed at one end of the limiting block away from the bowl body, and the other end of the spring is fixedly connected to the side of the base.

[0013] Preferably, a sliding groove is provided on the surface of the support, and sliding blocks are fixedly installed on both sides of the fixing plate and the cover plate, and the sliding blocks are slidably arranged in the corresponding sliding grooves.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model has a frame which is arranged so that, when in use, a soil sample can be placed in the frame. When the lifting drive device controls the lifting rod to move downward, the cover plate first contacts the top of the bowl body to seal the top of the bowl body. As the lifting rod continues to move downward, the impact crushing head contacts the soil sample to achieve impact crushing of the soil sample. In this process, the pressing plate presses the frame so that the frame is folded, so that the soil diffused outward by the impact force of the impact crushing head enters the area expanded by the folding of the frame. As the impact crushing head moves upward, the frame is reset, so that the soil entering the area expanded by the folding of the frame is subjected to the thrust of the frame and returns to the middle position of the bowl body, so that the soil sample near the peripheral position can be fully impact crushed, and the use effect is excellent. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view of a soil sample rapid impact crushing device proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the interior of a bowl of a soil sample rapid impact crushing device proposed by the utility model;

[0018] Figure 3 A top view of the frame of a soil sample rapid impact crushing device proposed by the utility model;

[0019] Figure 4 This is a top view of a cover plate of a soil sample rapid impact crushing device proposed by the utility model.

[0020] In the figure: 1. base; 2. bowl body; 3. support; 4. lifting drive device; 5. lifting rod; 6. fixing plate; 7. cover plate; 8. pressure plate; 9. impact crushing head; 10. frame; 11. flexible limiter; 12. connecting rod; 13. torsion spring; 14. embedded block; 15. embedded groove; 16. limit block; 17. spring; 18. slot; 19. spring assembly; 20. slide groove; 21. slider. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-Figure 4A soil sample rapid impact crushing device comprises a base 1, a bowl 2 for holding soil samples and a support 3 are arranged on the top of the base 1, the support 3 is fixedly installed on the rear side of the top of the base 1, a lifting drive device 4 is installed on the top of the support 3, the lifting drive device 4 is a hydraulic cylinder, a cylinder or a push rod motor, a lifting rod 5 is installed on the driving end of the lifting drive device 4, a fixing plate 6 is fixedly installed on the outer side of the lifting rod 5, a cover plate 7 is installed on the bottom of the fixing plate 6 through a spring assembly 19, a pressing plate 8 is installed on the bottom of the cover plate 7, the lifting rod 5 vertically moves through the cover plate 7 and the pressing plate 8, and an impact crushing head 9 is installed on the bottom;

[0023] A frame 10 is disposed inside the bowl body 2 , and the frame 10 includes an elastic foldable bracket. A plurality of the elastic foldable brackets are disposed in a ring array inside the bowl body 2 , and a flexible limiting member 11 is disposed around the periphery of the plurality of the elastic foldable brackets.

[0024] When the device is in use, the soil sample is first placed in the frame 10. When the lifting drive device 4 controls the lifting rod 5 to move downward, the cover plate 7 first contacts the top of the bowl body 2 to seal the top of the bowl body 2 to prevent the soil from splashing out during the impact of the soil. As the lifting rod 5 continues to move downward, the impact crushing head 9 contacts the soil sample and then moves upward, and the soil sample is impacted and crushed in sequence. During this process, the pressing plate 8 presses the frame 10 to fold the frame 10, so that the soil that is diffused outward by the impact force of the impact crushing head 9 enters the area expanded by the folding of the frame 10. As the impact crushing head 9 moves upward, the frame 10 is reset, so that the soil that enters the area expanded by the folding of the frame 10 is subjected to the thrust of the frame 10 and returns to the middle position of the bowl body 2, so that the soil samples near the periphery can be fully impacted and crushed, and the use effect is excellent.

[0025] In this embodiment, the flexible limit member 11 includes two connecting rods 12, and the two connecting rods 12 are connected by a torsion spring 13. The torsion spring 13 can ensure that the two connecting rods 12 can rotate relative to each other while the two connecting rods 12 are secured, and can be reset when the force is released after rotation, thereby realizing the process of compression of the frame 10 when it is squeezed and reset after the force is released.

[0026] In this embodiment, the flexible limiting member 11 is made of polyvinyl chloride plastic sheeting, and the flexible limiting member 11 is wrapped around the outer periphery of the plurality of elastic foldable brackets. The top of the flexible limiting member 11 is in a circular ring shape, and soil can be poured into the frame 10 from the opening at the top of the frame 10. The polyvinyl chloride plastic sheeting has a good shielding and limiting effect on the soil, ensuring that the soil is always in the frame 10.

[0027] In this embodiment, an embedding block 14 is installed at the bottom of the bowl body 2, a slot 18 is provided at the top of the base 1, and the embedding block 14 is movably embedded in the slot 18, and embedding grooves 15 are provided on both sides of the top of the embedding block 14. Limiting blocks 16 are installed on both sides of the base 1 through a rotating shaft, and the end shape of the limiting block 16 is adapted to the embedding groove 15, so as to limit the bowl body 2 on the base 1 and ensure stability during the impact on the soil.

[0028] In this embodiment, a spring 17 is installed at one end of the limit block 16 away from the bowl body 2, and the other end of the spring 17 is fixedly connected to the side of the base 1, so that the user can separate the limit block 16 from the embedding groove 15 by pressing.

[0029] In this embodiment, a slide groove 20 is provided on the surface of the support 3, and sliders 21 are fixedly installed on both sides of the fixed plate 6 and the cover plate 7, and the sliders 21 are slidably set in the corresponding slide grooves 20, so as to limit the positions of the fixed plate 6 and the cover plate 7 and ensure the accurate position of the cover plate 7, thereby ensuring the sealing effect of the top of the bowl body 2 and preventing the soil from splashing out of the bowl body 2 during the impact and crushing process.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A soil sample rapid impact crushing device, characterized in that: The invention comprises a base, a bowl body and a support for holding soil samples are arranged on the top of the base, a lifting drive device is installed on the top of the support, a lifting rod is installed on the driving end of the lifting drive device, a fixing plate is fixedly installed on the outer side of the lifting rod, a cover plate is installed on the bottom of the fixing plate through a spring assembly, a pressing plate is installed on the bottom of the cover plate, the lifting rod vertically moves through the cover plate and the pressing plate, and an impact crushing head is installed on the bottom end; A frame is arranged inside the bowl body, and the frame includes an elastic foldable bracket. A plurality of the elastic foldable brackets are arranged in a ring array inside the bowl body, and flexible limiting members are arranged on the periphery of the plurality of the elastic foldable brackets.

2. The soil sample rapid impact crushing device according to claim 1, characterized in that: The flexible limiting member comprises two connecting rods, and the two connecting rods are connected by a torsion spring.

3. The soil sample rapid impact crushing device according to claim 2, characterized in that: The flexible limiting member is made of polyvinyl chloride plastic cloth, and is wrapped around the outer periphery of a plurality of the elastic foldable brackets. The top of the flexible limiting member is in a circular ring shape.

4. The soil sample rapid impact crushing device according to claim 3, characterized in that: An embedding block is installed at the bottom of the bowl body, a slot is provided at the top of the base, and the embedding block is movably embedded in the slot, embedding grooves are provided on both sides of the top of the embedding block, and limit blocks are installed on both sides of the base through rotation of a rotating shaft, and the end shape of the limit block is adapted to the embedding groove.

5. The soil sample rapid impact crushing device according to claim 4, characterized in that: A spring is installed at one end of the limiting block away from the bowl body, and the other end of the spring is fixedly connected to the side of the base.

6. The soil sample rapid impact crushing device according to claim 1, characterized in that: A sliding groove is provided on the surface of the support, and sliding blocks are fixedly installed on both sides of the fixing plate and the cover plate, and the sliding blocks are slidably arranged in the corresponding sliding grooves.

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