CN212238117U

CN212238117U - Laboratory soil grading and screening device

Info

Publication number: CN212238117U
Application number: CN202020415985.5U
Authority: CN
Inventors: 石佳奇; 龙涛; 解宇峰; 曹少华; 盛峰
Original assignee: Nanjing Institute of Environmental Sciences MEE
Current assignee: Nanjing Institute of Environmental Sciences MEE
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2020-12-29
Anticipated expiration: 2030-03-27

Abstract

The utility model discloses a laboratory soil grading and screening device, which comprises a sealing box, a swinging component and a screening component, wherein the upper end of the sealing box is opened, and a partition plate and a swinging seat are arranged inside the sealing box; the swinging assembly comprises a star-shaped frame, a rocker arm and a swinging cam, the star-shaped frame is clamped with the sealing box, the rocker arm is clamped on the star-shaped frame, the swinging cam is arranged at the lower end of the rocker arm, and a clamping ball is arranged at the lower end of the swinging cam; the screening component comprises an outer barrel and a screen, a swinging ball head is arranged at the bottom of the outer barrel and is clamped with a swinging seat, an end cover is arranged at the upper end of the outer barrel, an annular clamping groove and a soil throwing hole are formed in the end cover, the annular clamping groove is clamped with the clamping ball, the screen is movably clamped inside the outer barrel and comprises a first-stage screen, a second-stage screen and a third-stage screen, and screen holes of the first-stage screen, the second-stage screen and the third-stage screen are sequentially reduced and are respectively and; the multi-stage screening device is reasonable in structural design, can be used for screening experimental soil in multiple stages, and is suitable for being popularized in large quantities.

Description

Laboratory soil grading and screening device

Technical Field

The utility model relates to a soil treatment equipment technical field, concretely relates to laboratory soil grading screening plant.

Background

The soil is a natural body composed of mineral components with different thicknesses layer by layer. The soil and the matrix layer are distinguished by morphological, physical, chemical and mineralogical characteristics. Due to the interaction of the crust, water vapor, atmosphere and biosphere, the soil layer is different from the matrix layer, is a mixed component of minerals and organic matters, and has solid, gas and liquid states. The loose soil particles combine to form a soil pattern that fills the interstices.

When experimental analysis is carried out on soil components, screening operation needs to be carried out on a soil sample to remove impurities such as stones in the soil, so that the accuracy of a soil component analysis result is improved; however, most of the existing soil screening devices only have a screen with one specification, and a large number of soil samples are accumulated in the same screen, so that the efficient operation of soil screening is difficult to ensure; meanwhile, the existing soil screening device basically performs soil screening operation through rotating or vibrating the screen, so that the working efficiency is low, and time and labor are wasted.

SUMMERY OF THE UTILITY MODEL

To the technical problem that above-mentioned exists, the utility model provides a laboratory soil classification screening plant that screening efficiency is high.

The technical scheme of the utility model is that: a laboratory soil grading screening device comprises a sealing box, a swinging assembly and a screening assembly, wherein the upper end of the sealing box is provided with an opening, a notch is formed in the opening, a partition plate is arranged at the lower position inside the sealing box, and a swinging seat is arranged at the bottom end inside the sealing box; the swinging assembly comprises a star-shaped frame, a rocker arm and a swinging cam, the star-shaped frame is movably clamped with a gap at the upper end of the seal box, the rocker arm is rotatably clamped on the star-shaped frame, the swinging cam is fixedly arranged at the lower end of the rocker arm, and a clamping ball is arranged at the edge of the lower end surface of the swinging cam; the screening component comprises an outer barrel and a screen, the bottom of the outer barrel is in an inverted cone shape and is provided with a swinging ball head, the swinging ball head penetrates through a partition plate and is movably clamped with a swinging seat, the side wall of the outer barrel is arranged in a hollow manner, the upper end of the outer barrel is provided with an end cover, the end cover is provided with an annular clamping groove and a soil throwing hole, the soil throwing hole is positioned at the inner side of the annular clamping groove, the annular clamping groove can be clamped with a clamping ball, the screen is movably clamped inside the outer barrel and comprises a first-stage screen, a second-stage screen and a third-stage screen, the screen meshes of the first-stage screen, the second-stage screen and the third-stage screen are sequentially reduced and are respectively and fixedly connected through a connecting plate, the opening size of the upper end of the first-stage screen is matched with the soil throwing hole, the outer side of the first-, the second through groove is communicated with the third-stage screen.

Furthermore, the connecting position of the partition board and the swing ball head is provided with a rubber dustproof sleeve, and soil dust can be prevented from entering the swing seat by the aid of the rubber dustproof sleeve, so that the swing of the swing ball head on the swing seat is smoother.

Further, seal box lateral wall lower extreme articulates there is the chamber door, and the opening of chamber door is higher than the baffle, through setting up the chamber door, is convenient for take out the soil after the screening in the seal box, improves the convenience of experiment work.

Furthermore, the clamping ball is connected with the swing cam through the spring rod, the upper end of the spring rod is hinged to the swing cam, and the spring rod is arranged, so that the clamping ball is always tightly clamped with the annular clamping groove in the end cover, the phenomenon that the clamping ball falls off from the annular clamping groove in the swing process of the sealing box is avoided, and the stability of the device is improved.

Furthermore, the clamping ball is rotatably connected with the spring rod, the abrasion of the clamping ball can be reduced by the rotary connection mode, and the friction resistance between the clamping ball and the annular clamping groove is reduced.

Furthermore, the swing cam is provided with a sliding groove along the radius direction, the bottom of the spring rod is hinged with a sliding block, the sliding block is movably clamped inside the sliding groove, a fastening bolt is arranged on the sliding block, and when the swing cam is used, the position of the sliding block on the sliding groove on the spring rod is adjusted, so that the swing radius of the seal box can be adjusted, and the operability of the swing cam is improved.

The utility model discloses a theory of operation does: when the screening machine is used, the screen is clamped in the outer barrel, the end cover is closed, and a soil sample to be screened is thrown into the first-stage screen through the soil throwing hole in the end cover; adjusting the position of the sliding block on the sliding groove, fixing the sliding block and the sliding groove through a fastening bolt, clamping the star-shaped frame at the notch at the upper end of the seal box, and clamping the clamping ball in the annular clamping groove on the end cover; an experimenter rotates the rocker arm to enable the screen and the outer barrel to swing in the sealed box, in the swinging process of the screen, soil separated by the first-stage screen mesh enters the second-stage screen mesh through the first through groove, soil separated by the second-stage screen mesh enters the third-stage screen mesh through the second through groove, soil separated by the third-stage screen mesh falls into the sealed box, and a box door is opened to remove the separated soil; and removing the star-shaped frame and the end cover, taking out the screen and cleaning large-particle impurities which are not screened out in the screen.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages of reasonable design, through setting up the screen cloth of three different apertures to sieve experimental soil, improved the precision of soil screening, reduced the degree of difficulty of soil screening work simultaneously, improved work efficiency, avoided carrying out soil screening by a screen cloth and the soil that causes piles up and is difficult to sieve the problem; the utility model greatly improves the working efficiency of soil screening by circularly swinging the screen mesh, and saves the precious time of experimenters; in the soil screening process, the experimenter adjusts the position of the spring rod on the swing cam as required, and then adjusts the swing radius of the screen cloth, and the practicability of the device is greatly improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a top view of the present invention;

FIG. 3 is a schematic view of the connection between the ball retainer and the swing cam according to the present invention;

FIG. 4 is a schematic structural view of the outer barrel of the present invention;

fig. 5 is a schematic structural view of the screen of the present invention;

the device comprises a sealing box 1, a partition plate 10, a rubber dustproof sleeve 100, a swinging seat 11, a box door 12, a swinging assembly 2, a star-shaped frame 20, a rocker arm 21, a swinging cam 22, a clamping ball 220, a spring rod 221, a sliding groove 222, a sliding block 223, a fastening bolt 224, a screening assembly 3, an outer cylinder 30, a swinging ball head 300, an end cover 301, an annular clamping groove 302, an annular clamping groove 303, a soil throwing hole 31, a screen mesh 310, a first-level screen mesh 311, a second-level screen mesh 312, a third-level screen mesh 313, a connecting plate 314, a first retainer ring 315, a first through groove 316, a second retainer ring 316 and a second through groove 317.

Detailed Description

Example (b): as shown in fig. 1 and 2, the laboratory soil classifying and screening device comprises a seal box 1, a swinging assembly 2 and a screening assembly 3, wherein the upper end of the seal box 1 is opened, a gap is arranged at the opening, a partition plate 10 is arranged at the lower position inside the seal box 1, and a swinging seat 11 is arranged at the bottom end inside the seal box 1; the lower end of the side wall of the seal box 1 is hinged with a box door 12, the opening of the box door 12 is higher than the partition plate 10, and the box door 12 is arranged, so that soil screened in the seal box 1 can be conveniently taken out, and convenience of experimental work is improved;

as shown in fig. 1 and 3, the swing assembly 2 includes a star frame 20, a rocker arm 21 and a swing cam 22, the star frame 20 is movably clamped with an upper end gap of the seal box 1, the rocker arm 21 is rotatably clamped on the star frame 20, the swing cam 22 is fixedly arranged at the lower end of the rocker arm 21, and a clamping ball 220 is arranged at the edge of the lower end face of the swing cam 22; the clamping ball 220 is connected with the swing cam 22 through the spring rod 221, the upper end of the spring rod 221 is hinged with the swing cam 22, and the spring rod 221 is arranged, so that the clamping ball 220 is always tightly clamped with the annular clamping groove 302 on the end cover 301, the clamping ball 220 is prevented from falling off from the annular clamping groove 302 in the swing process of the seal box 1, and the stability of the device is improved; the clamping ball 220 is rotatably connected with the spring rod 221, and the abrasion of the clamping ball 220 can be reduced by the rotary connection mode, and meanwhile, the friction resistance between the clamping ball 220 and the annular clamping groove 302 is reduced; the swing cam 22 is provided with a sliding groove 222 along the radius direction, the bottom of the spring rod 221 is hinged with a sliding block 223, the sliding block 223 is movably clamped inside the sliding groove 222, and the sliding block 223 is provided with a fastening bolt 224;

as shown in fig. 1, 4 and 5, the screening assembly 3 includes an outer cylinder 30 and a screen 31, the bottom of the outer cylinder 30 is in an inverted cone shape and is provided with a swing ball 300, the swing ball 300 penetrates through a partition plate 10 and is movably clamped with a swing seat 11, a rubber dust-proof sleeve 100 is arranged at the joint of the partition plate 10 and the swing ball 300, and soil dust can be prevented from entering the swing seat 11 by arranging the rubber dust-proof sleeve 100, so that the swing ball 300 can swing more smoothly on the swing seat 11; the side wall of the outer barrel 30 is hollowed out, the upper end of the outer barrel is provided with an end cover 301, the end cover 301 is provided with an annular clamping groove 302 and a soil feeding hole 303, the soil feeding hole 303 is positioned inside the annular clamping groove 302, the annular clamping groove 302 can be clamped with the clamping ball 220, the screen 31 is movably clamped inside the outer barrel 30, the screen 31 comprises a first-stage screen 310, a second-stage screen 311 and a third-stage screen 312, the screen holes of the first-stage screen 310, the second-stage screen 311 and the third-stage screen 312, and are respectively fixedly connected through a connecting plate 313, the opening size of the upper end of the first-stage screen 310 is matched with the soil throwing hole 303, a first retainer ring 314 is arranged on the outer side of the first-stage screen 310, a first through groove 315 is arranged between the first retainer ring 314 and the first-stage screen 310, the first through groove 315 is communicated with the second-stage screen 311, a second retainer ring 316 is arranged on the outer side of the second-stage screen 311, a second through groove 317 is arranged between the second retainer ring 316 and the second-stage screen 311, and the second through groove 317 is communicated with the third-stage screen.

When the soil screening device is used, the screen 31 is clamped in the outer barrel, the end cover 301 is closed, and a soil sample to be screened is thrown into the first-stage screen 310 through the soil throwing holes 303 in the end cover 301; adjusting the position of the sliding block 223 on the sliding groove 222, fixing the sliding block 223 and the sliding groove 222 through a fastening bolt 224, clamping the spider 20 at the notch at the upper end of the seal box 1, and clamping the clamping ball 220 in the annular clamping groove 302 on the end cover 301; an experimenter rotates the rocker arm 21 to enable the screen 31 and the outer cylinder 30 to swing together in the seal box 1, in the swinging process of the screen 31, soil screened by the first-stage screen 310 enters the second-stage screen 311 through the first through groove 315, soil screened by the second-stage screen 311 enters the third-stage screen 312 through the second through groove 317, soil screened by the third-stage screen 312 falls into the interior of the seal box, and the box door 12 is opened to remove the screened soil; the star frame 20 and the end cover 301 are removed, the screen mesh 31 is taken out, and large particle impurities which are not screened out in the screen mesh 31 are cleaned.

Claims

1. A laboratory soil grading and screening device is characterized by comprising a sealing box (1), a swinging assembly (2) and a screening assembly (3), wherein the upper end of the sealing box (1) is opened, a notch is formed in the opening, a partition plate (10) is arranged in the sealing box (1) at the lower position, and a swinging seat (11) is arranged at the bottom end in the sealing box (1); the swing assembly (2) comprises a star-shaped frame (20), a rocker arm (21) and a swing cam (22), the star-shaped frame (20) is movably clamped with an upper end gap of the seal box (1), the rocker arm (21) is rotatably clamped on the star-shaped frame (20), the swing cam (22) is fixedly arranged at the lower end of the rocker arm (21), and a clamping ball (220) is arranged at the edge of the lower end face of the swing cam (22); the screening component (3) comprises an outer barrel (30) and a screen (31), the bottom of the outer barrel (30) is in an inverted cone shape and is provided with a swing ball head (300), the swing ball head (300) penetrates through a partition plate (10) and then is movably clamped with a swing seat (11), the side wall of the outer barrel (30) is hollowed out, an end cover (301) is arranged at the upper end of the outer barrel, an annular clamping groove (302) and a soil throwing hole (303) are formed in the end cover (301), the soil throwing hole (303) is located on the inner side of the annular clamping groove (302), the annular clamping groove (302) can be clamped with a clamping ball (220), the screen (31) is movably clamped inside the outer barrel (30), the screen (31) comprises a first-level screen (310), a second-level screen (311) and a third-level screen (312), screen meshes of the first-level screen (310), the second-level screen (311) and the third-level screen, one-level screen cloth (310) upper end opening size suits with throwing native hole (303), and one-level screen cloth (310) outside is provided with first retaining ring (314), be provided with first logical groove (315) between first retaining ring (314) and one-level screen cloth (310), first logical groove (315) switches on with second grade screen cloth (311), second grade screen cloth (311) outside is provided with second retaining ring (316), be provided with second logical groove (317) between second retaining ring (316) and second grade screen cloth (311), second logical groove (317) switch on with tertiary screen cloth (312).

2. A laboratory soil classifying and screening device according to claim 1, characterized in that the joint of the partition (10) and the swinging ball head (300) is provided with a rubber dust cover (100).

3. A laboratory soil classifying and screening device according to claim 1, characterized in that the lower end of the side wall of said sealing box (1) is hinged with a box door (12), the opening of said box door (12) is higher than the partition (10).

4. A laboratory soil classifying and screening device according to claim 1, wherein the said catch ball (220) is connected with the swing cam (22) through a spring rod (221), the upper end of the said spring rod (221) is hinged with the swing cam (22).

5. A laboratory soil grading screen device according to claim 3, characterized in that said snap ball (220) is rotatably connected to a spring rod (221).

6. The laboratory soil classifying and screening device according to claim 4, wherein a sliding block (223) is hinged to the bottom of the spring rod (221), a sliding groove (222) is formed in the swing cam (22) along the radius direction, the sliding block (223) is movably clamped inside the sliding groove (222), and a fastening bolt (224) is arranged on the sliding block (223).