Laboratory crushed soil screening device

Abstract

The utility model discloses a laboratory crushed soil screening device which comprises a support, a screening table, a vibration motor, a storage box, a feeding hopper and a beating assembly. The screening table is elastically connected with the support, at least three square grooves are formed in the top of the screening table, filter screens are embedded in the square grooves respectively, and the mesh number of the filter screens is sequentially reduced; the vibration motor is arranged at the bottom end of the screening table; the storage boxes are respectively arranged at the bottom ends of the filter screens and are in one-to-one correspondence with the filter screens; the feeding hopper is arranged on one side of the top of the screening table, and the feeding hopper is adjacent to the filter screen with the largest mesh number; the beating assembly is arranged in the feeding hopper. Through the structural design that the filter screens with different mesh numbers are arranged and the screening table is attached, crushed soil with different particle sizes can be collected by the storage box, repeated disassembly and assembly are not needed, and use is more convenient and faster.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete testing equipment, in particular to a laboratory soil crushing and screening device. Background Art

[0002] The crushed soil in the laboratory needs to be crushed and screened according to the required particle size. The Chinese utility model patent with the announcement number CN213468014U publicly authorized a laboratory crushed soil screening device, which constructs a graded screening structure by setting a beating chamber and a crushing chamber for screening soil particles of different particle sizes from top to bottom; specifically, the aperture of the second screen in different crushing chambers from top to bottom gradually decreases, so that the crushed soil of different particle sizes can be effectively screened.

[0003] However, when the above-mentioned laboratory soil crushing and screening device is used, multiple crushing chambers need to be stacked and used. When screening for different particle sizes, the crushing chambers need to be disassembled and assembled, and the overall operation and use are not convenient. Utility Model Content

[0004] The purpose of the utility model is to overcome the above technical deficiencies, and to provide a laboratory soil crushing and screening device to solve the technical problem in the prior art of inconvenience in use caused by stacking and repeated disassembly and assembly.

[0005] In order to achieve the above technical purpose, the utility model adopts the following technical solutions:

[0006] A laboratory soil crushing and screening device, comprising:

[0007] Bracket;

[0008] A screening platform; the screening platform is elastically connected to the bracket, and at least three square grooves are provided on the top of the screening platform, each of which is embedded with a filter screen, and the mesh size of the filter screen decreases successively;

[0009] A vibration motor, wherein the vibration motor is arranged at the bottom end of the screening platform;

[0010] Storage boxes, each of which is disposed at the bottom of each filter screen, and each of which corresponds to each filter screen;

[0011] An upper hopper, the upper hopper is arranged on one side of the top of the sub-screening platform, and the upper hopper is adjacent to the filter screen with the largest mesh number;

[0012] A hammering assembly is arranged in the upper hopper.

[0013] In some embodiments, a slope is provided on the top of the sub-screening platform, and the slope is tilted downward on a side away from the upper hopper.

[0014] In some embodiments, springs are installed at the four top corners of the bracket, and one end of the spring away from the bracket is fixedly connected to the four bottom corners of the screening platform.

[0015] In some embodiments, an eccentric wheel mechanism is installed on the outer side of the upper hopper, and the eccentric wheel mechanism is connected to the hammering assembly. A driving member is provided on the side of the eccentric wheel mechanism away from the upper hopper, and the driving member drives the eccentric wheel mechanism to perform eccentric motion and causes the hammering assembly to move up and down intermittently.

[0016] In some embodiments, the beating assembly includes a transverse plate and a beating rod, and the bottom end of the transverse plate is fixedly connected to one end of the beating rod.

[0017] In some embodiments, the beating bars are distributed in a matrix.

[0018] In some embodiments, one end of the beating rod away from the horizontal plate is fixedly connected with a hammer head.

[0019] In some embodiments, the hammer head is cylindrical.

[0020] In some embodiments, the transverse plate is provided with at least two clearance slots.

[0021] In some embodiments, a vertical frame is mounted on the bracket, and the upper hopper is mounted on the bracket.

[0022] Compared with the prior art, the laboratory soil crushing and screening device provided by the utility model has a basic structure of hammering and step-by-step screening by setting a hammering assembly, a screening platform, and embedding at least three filter screens on the screening platform, and the mesh size of the filter screens decreases successively; further, a vibration motor is provided at the bottom of the screening platform to complete the classification, screening and transmission of the crushed soil; and the storage box design packs the crushed soil of different particle sizes. The above design can effectively avoid repeated disassembly and assembly, and can greatly improve the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a laboratory soil crushing and screening device provided by an embodiment of the utility model;

[0024] Figure 2 yes Figure 1 The enlarged schematic diagram of point A in the middle;

[0025] Figure 3 yes Figure 1 Schematic diagram of the structure of the hammer assembly.

[0026] Description of reference numerals:

[0027] 100, bracket; 110, stand; 200, screening table; 210, square trough; 220, filter screen; 230, inclined plane; 300, vibration motor; 400, storage box; 500, upper hopper; 600, hammering assembly; 610, cross plate; 611, clearance groove; 620, hammering rod; 630, hammer head; 700, spring; 800, eccentric wheel mechanism; 900, driving part. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0029] In order to solve the technical problem of inconvenience in use caused by repeated disassembly and assembly of a crushing chamber, the utility model provides a laboratory soil crushing and screening device, which can be used conveniently.

[0030] It should be noted that the laboratory soil crushing and screening device described in the utility model is used for but not limited to laboratories, etc. For the convenience of explanation, in the utility model, only a laboratory soil crushing and screening device applied to laboratory equipment is used as an example for explanation. The principle of applying a laboratory soil crushing and screening device to other types of equipment is essentially the same as the principle applied to laboratory equipment, and will not be repeated here.

[0031] See also Figure 1 , Figure 1 The present invention is a schematic structural diagram of a laboratory soil crushing and screening device in one embodiment of the present invention, wherein the laboratory soil crushing and screening device comprises a bracket 100, a screening platform 200, a vibration motor 300, a storage box 400, an upper hopper 500 and a hammering assembly 600; the screening platform 200 is elastically connected to the bracket 100, and at least three square grooves 210 are provided on the top of the screening platform 200, and a filter screen 220 is embedded in each of the square grooves 210, and the mesh number of the filter screen 220 decreases successively; the vibration motor 300 is arranged at the bottom of the screening platform 200; the storage boxes 400 are respectively arranged at the bottom of the filter screen 220, and the storage boxes 400 correspond to the filter screen 220 one by one; the upper hopper 500 is arranged on one side of the top of the screening platform 200, and the upper hopper 500 is adjacent to the filter screen 220 with the largest mesh number; the hammering assembly 600 is arranged in the upper hopper 500.

[0032] In this embodiment, a basic vibration screening structure is constructed by setting up a screening platform 200, a vibration motor 300 and a bracket 100; further, at least three square grooves 210 are opened on the top of the screening platform 200, and filter screens 220 are embedded in each of the square grooves 210, and the mesh size of the filter screens 220 decreases successively, so that the crushed soil can be graded and filtered according to the different particle sizes during the vibration transmission process, and collected one by one by the storage box 400 located below the filter screen 220, which is more convenient to use and does not require repeated disassembly and assembly.

[0033] In one embodiment, see Figure 1 A slope 230 is provided on the top of the screening platform 200 , and the slope 230 is tilted downward on the side away from the upper hopper 500 .

[0034] In this embodiment, the inclined surface 230 is provided and the side of the inclined surface 230 that is inclined downward is provided at an end away from the upper hopper 500, so that the transmission and effective screening of the crushed soil can be facilitated.

[0035] In one embodiment, see Figure 1 - Figure 2 Springs 700 are installed at the four corners of the top of the bracket 100 , and one end of the spring 700 away from the bracket 100 is fixedly connected to the four corners of the bottom end of the screening platform 200 .

[0036] In this embodiment, the basic structure of the sub-screening is constructed by elastically connecting the spring 700 with the bracket 100 and the sub-screening platform 200 .

[0037] In one embodiment, see Figure 1 An eccentric wheel mechanism 800 is installed on the outer side of the upper hopper 500, and the eccentric wheel mechanism 800 is connected to the hammering assembly 600. A driving member 900 is provided on the side of the eccentric wheel mechanism 800 away from the upper hopper 500. The driving member 900 drives the eccentric wheel mechanism 800 to perform eccentric motion and makes the hammering assembly 600 move up and down intermittently.

[0038] In the present embodiment, the eccentric wheel mechanism 800 is a prior art, which drives the eccentric wheel mechanism 800 to do eccentric motion through the output end of the driving member 900, and then continuously knocks one side of the beating assembly 600 and makes the beating assembly 600 do intermittent up and down motion. It should be pointed out that in order to ensure that the beating assembly 600 can have a better reset effect, preferably, another spring can be set between the beating assembly 600 and the upper hopper 500, so as to realize good reset through elastic connection.

[0039] In one embodiment, see Figure 1 , Figure 3 The beating assembly 600 includes a horizontal plate 610 and a beating rod 620 , and the bottom end of the horizontal plate 610 is fixedly connected to one end of the beating rod 620 .

[0040] In this embodiment, the beating rod 620 is used to beat the crushed soil to achieve full crushing of the crushed soil.

[0041] In one embodiment, see Figure 3 , the beating rods 620 are distributed in a matrix.

[0042] In this embodiment, the uniform distribution of the beating rods 620 can help to fully and completely break the soil, so that the expected particle size of the soil can be obtained. It should be noted that if it is desired to obtain soil with different particle sizes, the beating speed and the beating rods 620 can be adjusted according to actual conditions.

[0043] In one embodiment, see Figure 3 One end of the beating rod 620 away from the horizontal plate 610 is fixedly connected with a hammer head 630 .

[0044] In this embodiment, the hammer head 630 is used to achieve a more solid pounding of the crushed soil, which helps to improve the pounding and crushing effect.

[0045] In one embodiment, see Figure 3 , the hammer head 630 is cylindrical.

[0046] In this embodiment, the structural design of the hammer head 630 makes the hammering more effective.

[0047] In one embodiment, see Figure 1 , Figure 3 The horizontal plate 610 is provided with at least two clearance grooves 611 .

[0048] In this embodiment, the clearance groove 611 allows the crushed soil to fall through the clearance groove 611 when being poured, so that the crushed soil is poured more evenly.

[0049] In one embodiment, see Figure 1 A stand 110 is mounted on the bracket 100 , and an upper hopper 500 is mounted on the bracket 100 .

[0050] In this embodiment, the stand 110 can better support the upper hopper 500 and help expand the soil crushing and screening device.

[0051] In order to better understand the present invention, the following Figures 1 to 3 The technical solution of the utility model is described in detail:

[0052] When the above-mentioned laboratory soil crushing and screening device is used, it is first necessary to start the driving member 900 and the vibration motor 300, so that the hammering assembly 600 and the screening table 200 perform hammering actions and screening vibration actions in the upper and lower positions respectively; then, the crushed soil is poured in through the upper hopper 500, and the crushed soil is fully crushed under the intermittent beating of the hammer head 630; then, the crushed soil falls into the filter screen 220 on the screening table 200, and is continuously transported under the action of vibrating screening; due to the different mesh sizes of the filter screen 220, this allows crushed soil of different particle sizes to be fully and effectively screened, and can be collected one by one by the storage box 400 located below the filter screen 220. The most important thing is that it is more convenient to use and does not require repeated disassembly and assembly.

[0053] The above specific implementation methods of the utility model do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A laboratory soil crushing and screening device, characterized in that: include: Bracket; A screening platform; the screening platform is elastically connected to the bracket, and at least three square grooves are provided on the top of the screening platform, each of which is embedded with a filter screen, and the mesh size of the filter screen decreases successively; A vibration motor, wherein the vibration motor is arranged at the bottom end of the screening platform; Storage boxes, each of which is disposed at the bottom of each filter screen, and each of which corresponds to each filter screen; An upper hopper, the upper hopper is arranged on one side of the top of the sub-screening platform, and the upper hopper is adjacent to the filter screen with the largest mesh number; A hammering assembly is arranged in the upper hopper.

2. A laboratory soil crushing and screening device according to claim 1, characterized in that: The top of the sub-screening platform is provided with an inclined surface, and the inclined surface is arranged to be inclined downward at a side away from the upper hopper.

3. A laboratory soil crushing and screening device according to claim 1, characterized in that: Springs are installed at the four corners of the top of the bracket, and one end of the spring away from the bracket is fixedly connected to the four corners of the bottom end of the sub-screening platform.

4. A laboratory soil crushing and screening device according to claim 1, characterized in that: An eccentric wheel mechanism is installed on the outer side of the upper hopper, and the eccentric wheel mechanism is connected to the hammering assembly. A driving member is provided on the side of the eccentric wheel mechanism away from the upper hopper, and the driving member drives the eccentric wheel mechanism to perform eccentric motion and enables the hammering assembly to move up and down intermittently.

5. A laboratory soil crushing and screening device according to claim 1, characterized in that: The beating assembly comprises a transverse plate and a beating rod, wherein the bottom end of the transverse plate is fixedly connected to one end of the beating rod.

6. A laboratory soil crushing and screening device according to claim 5, characterized in that: The beating rods are distributed in a matrix.

7. A laboratory soil crushing and screening device according to claim 5, characterized in that: One end of the beating rod away from the horizontal plate is fixedly connected with a hammer head.

8. A laboratory soil crushing and screening device according to claim 7, characterized in that: The hammer head is cylindrical.

9. A laboratory soil crushing and screening device according to claim 5, characterized in that: The transverse plate is provided with at least two giving way grooves.

10. A laboratory soil crushing and screening device according to claim 1, characterized in that: A vertical frame is sleeved on the bracket, and the upper hopper is mounted on the bracket.

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