CN112845053A

CN112845053A - Laboratory soil screening ware of environmental protection

Info

Publication number: CN112845053A
Application number: CN202110227277.8A
Authority: CN
Inventors: 李栋伟; 鹿庆蕊; 蒋潇伊; 李平; 陈士军; 陈晓鹏
Original assignee: East China Institute of Technology
Current assignee: East China Institute of Technology
Priority date: 2021-03-01
Filing date: 2021-03-01
Publication date: 2021-05-28

Abstract

The invention relates to an environment-friendly laboratory soil screening device which comprises a fixed base, wherein the top of the fixed base forms an annular supporting area, and the middle part of the supporting area is provided with a driving part; a U-shaped mounting area is formed inside the swinging base; the driving part drives the swinging base to continuously and circularly swing relative to the supporting area; a sieve component is arranged in the U-shaped mounting area and comprises a tray and a plurality of sieves which are sequentially fixed above the tray; adjacent sieves are hermetically clamped; the screen cover is used for sealing and fixing the screen opening of the screen on the top. Tray, sieve lid all are provided with the sealing member and have improved the leakproofness to make the great reduction of the excessive condition of whole in-process dust, played the environmental protection effect. The driving motor through the fixed base drives the swing base to swing left and right, and the swing speed is better and more stable than the manual left and right swing speed. The invention thoroughly solves the problems that the sieve is blocked and the soil sample cannot pass through in the soil sieving process through the rotation of the uppermost brush.

Description

Laboratory soil screening ware of environmental protection

Technical Field

The invention relates to the technical field of experimental tools in a geotechnical laboratory, in particular to an environment-friendly laboratory soil screening device.

Background

The soil screening device is a tool widely applied to geotechnical experiments, and is used for distinguishing soil samples according to particle sizes so as to meet the requirements of measuring different indexes of the soil samples. However, in the soil screening process, the soil sample is manually shaken left and right at the present stage, or the screen is placed on an electric device for screening the sand particles. Manual screening needs to take up the soil screening device and rock left and right to screen soil, very takes physical power, and the less granule that still can have of soil granule produces great dust at the in-process that rocks. And after the soil is screened, some soil particles with smaller particle sizes are not completely settled when the cover of the soil screening device is opened, and the soil particles can be emitted to a laboratory when a soil sample is collected. The disadvantages of manual sieving: 1. the manual screening efficiency is low, and the workload is huge. When the geotechnical sieve is multilayer, manual sieving is not easy to carry out, and the operation difficulty is high. 2. The gap that exists between artifical split's in-process because the geotechnological sieve when rocking about carrying on, the soil of sieve the inside will run out from the gap, produces great dust and has great injury to the person's health of screening. 3. When the soil particles are fine during manual screening, the soil particles are difficult to screen by manual left-right shaking, so that pores are blocked, and the finer particles cannot be used. The sieve is put on the electric device that the grit granule sieved and sieves the shortcoming: 1. when screened with a shaker, continued operation can produce a loud noise. 2. Because the sieving machine operation will produce great vibration amplitude, but the leakproofness is not high between the geotechnological sieve, consequently will produce than the dust that artifical sieve soil is bigger, all have great health harm to whole laboratory personnel. 3. When soil particles are fine when the vibrating screen machine is used for screening, the soil particles are difficult to screen down only by the vibration of the vibrating screen machine, and the pores are blocked, so that the finer particles cannot pass through.

Based on this, current sieve soil mode not only causes the pollution to the air in laboratory, also can cause adverse effect to sieve native person's health, in addition, will sieve the in-process that the good soil sample of in-ware was poured out and have partial soil sample spill, form extravagantly, sieve soil efficiency is also not high. Therefore, how to provide an environment-friendly laboratory earth sifter is a problem that needs to be solved by those skilled in the art.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the above-mentioned problems in the prior art.

Therefore, the invention aims to provide an environment-friendly laboratory soil screening device, which solves the problem that the large dust generated in the soil screening process of the soil screening device is not environment-friendly.

The invention provides an environment-friendly laboratory soil screening device, which comprises:

the top of the fixed base forms an annular supporting area, and the middle part of the supporting area is provided with a driving part;

the swinging base is internally provided with a U-shaped mounting area; the driving part drives the swinging base to continuously and circularly swing relative to the supporting area;

the screen assembly is arranged in the U-shaped mounting area and comprises a tray and a plurality of screens which are sequentially fixed above the tray; the adjacent sieves are clamped and connected in a sealing way;

and the screen cover is used for sealing and fixing the screen opening of the screen on the top.

According to the technical scheme, compared with the prior art, the environment-friendly laboratory soil screening device is provided, the adjacent sieves are clamped and connected in a sealing mode, the sieve cover is fixed at the sieve opening of the top in a sealing mode, dust cannot escape out to pollute the environment and harm the health of an operator in the screening process, and the environment-friendly property of the laboratory soil screening is achieved.

Furthermore, the upper edge and the lower edge of the sieve are provided with sealing pieces, and the outer side wall of each sealing piece is provided with buckling parts which are mutually clamped. The sealing element may be a sealing strip or a sealing ring. Can form twice at the sieve edge and seal, one is in the inboard, and one is in the outside, guarantees the leakproofness.

Further, the buckling parts comprise a first buckling part and a second buckling part, and the first buckling part and the second buckling part are matched and fixed on the outer walls of the two adjacent sieves in a one-to-one correspondence mode. The first buckling part can be a barb directly arranged on the outer wall of the sieve, and the second buckling part is a hook capable of being matched with the barb; the contact surface of the barb and the hook is an inclined surface, a sawtooth surface and the like.

Further, the drive division is driving motor, the driving motor output is provided with drive gear up, swing base bottom have with drive gear complex tooth's socket. Thereby the swinging base continuously and circularly swings relative to the supporting area to complete soil screening.

Furthermore, the circumference of the driving gear is provided with a half circle of gear teeth, the shape of the gear groove is a long strip-shaped groove, and the long edges at the two sides of the long strip-shaped groove are symmetrically provided with continuous teeth which are equal in length and matched with the driving gear.

Further, the bottom of the swing base is symmetrically provided with first sliding parts relative to the tooth grooves; the top of the fixed base is provided with a second sliding part which is matched with the first sliding part to slide. The first sliding part can be a sliding block, the second sliding part is a sliding rail, and the sliding block can be spherical, square, oval and the like. Therefore, when the driving gear and the tooth grooves are matched to swing, a certain guiding effect is achieved, and the swing stability of the sieve is guaranteed.

Furthermore, a buffer spring is arranged between the side wall of the fixed base and the side wall of the swinging base, so that the swinging base can play a role in buffering when swinging in a supporting area, and further the swinging noise is reduced.

Further, a sealing strip is arranged at the bottom edge of the sieve cover; the inside of the sieve is vertically provided with a brush for preventing the sieve pores from being blocked. The brush is composed of a plurality of fibers with moderate hardness, and the length of the fibers is the height value of the sieve.

Further, a motor is arranged at the top of the sieve cover, an output shaft of the motor is rotationally sealed on the sieve cover, and the end part of the output shaft of the motor is connected with the sieve fixing frame. The sieve mount bottom is the brush, and when the sieve mesh was blockked up easily to the thinner sieve soil sample in top, starter motor prevented to block up the sieve mesh, influences screening efficiency.

Furthermore, a telescopic frame fixed with the swing base is arranged on the screen cover. The expansion bracket passes through the top connection frame, and the bottom connection frame is constituteed, and top connection frame top is fixed with the sieve lid, and strides and establish at the sieve lid top, and the bottom connection frame is fixed on swing base top lateral wall, and both junctions form the inserting groove, sets up a plurality of fixed orificess on the inserting groove, and according to the whole height of the altitude mixture control expansion bracket of sieve, it is fixed to insert the fixed orifices through the screw at last.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic view of an environmental laboratory soil screening device according to the present invention;

FIG. 2 the accompanying drawings show a top view of the stationary base;

FIG. 3 illustrates a top view of the swing base;

FIG. 4 is a schematic view of the installation of the snap fit components;

figure 5 the accompanying drawings show a schematic view of the structure within the screen cover;

FIG. 6 is a bottom view of FIG. 5;

FIG. 7 the accompanying drawings show a schematic view of the telescoping boom;

in the figure: 1-fixed base, 11-driving part, 12-driving gear, 13-second sliding part, 2-swinging base, 21-tooth groove, 22-first sliding part, 3-tray, 4-sieve, 5-sieve cover, 51-brush, 52-motor, 53-fixed frame, 6-buffer spring, 7-buckling part, 71-first buckling part, 72-second buckling part and 8-telescopic frame.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The embodiment of the invention discloses an environment-friendly laboratory soil screening device, which is shown in the attached drawings 1-3 and comprises a fixed base 1, wherein the top of the fixed base 1 forms an annular supporting area, and the middle part of the supporting area is provided with a driving part 11; the device comprises a swinging base 2, wherein a U-shaped mounting area is formed inside the swinging base 2; the driving part 11 drives the swinging base 2 to continuously and circularly swing relative to the supporting area; the screen assembly is arranged in the U-shaped mounting area and comprises a tray 3 and a plurality of screens 4 which are sequentially fixed above the tray 3; the adjacent sieves 4 are clamped and connected in a sealing way; and a screen cover 5, wherein the screen cover 5 is used for sealing and fixing the screen opening of the screen 4 at the top. The invention discloses an environment-friendly laboratory soil screening device, wherein adjacent sieves are clamped and connected in a sealing mode, and a sieve cover is fixed at the sieve opening of the top sieve in a sealing mode.

In particular, the upper and lower edges of the sieve 4 are provided with sealing elements, and the outer side walls thereof are provided with buckling parts 7 which are mutually clamped. The sealing element may be a sealing strip or a sealing ring. Can form twice at the sieve edge and seal, one is in the inboard, and one is in the outside, guarantees the leakproofness.

Referring to fig. 4, the fastening components 7 include a first fastening component 71 and a second fastening component 72, and the first fastening component 71 and the second fastening component 72 are fittingly fixed to the outer walls of two adjacent screens 4 in a one-to-one correspondence manner. The first buckling part can be a barb directly arranged on the outer wall of the sieve, and the second buckling part is a hook capable of being matched with the barb; the contact surface of the barb and the hook is an inclined surface, a serrated surface and the like, so that the fastening firmness can be increased.

In the above embodiment, the driving portion 11 is a driving motor, the output end of the driving motor faces upward and is provided with the driving gear 12, and the bottom of the swing base 2 is provided with the tooth socket 21 matched with the driving gear 12. Thereby the swinging base continuously and circularly swings relative to the supporting area to complete soil screening.

Specifically, the driving gear 12 has a half-circle gear on its circumference, the tooth grooves 21 form a long groove, and continuous teeth which are equal in length and fit with the driving gear 12 are symmetrically arranged on the long sides of the long groove.

Advantageously, the first sliding parts 22 are symmetrically arranged at the bottom of the swing base 2 opposite to the tooth grooves 21; the top of the fixed base 1 is provided with a second sliding part 13 which is matched with the first sliding part 22 for sliding. The first sliding part can be a sliding block, the second sliding part is a sliding rail, the sliding block can be spherical, square, oval and the like, the sliding block is preferably spherical, the sliding block is continuously and smoothly matched with the sliding rail, and the sliding block can normally be matched and slide even in the swinging process. Therefore, when the driving gear and the tooth grooves are matched to swing, a certain guiding effect is achieved, and the swing stability of the sieve is guaranteed.

In another embodiment of the present invention, referring to fig. 1, a buffer spring 6 is installed between the side wall of the fixed base 1 and the side wall of the swing base 2. Therefore, the damping effect is achieved when the swinging base swings in the supporting area, and further the swinging noise is reduced.

In other embodiments of the invention, referring to figures 5 and 6, the bottom edge of the screen lid 5 is provided with a sealing strip; inside which a brush 51 for preventing clogging of the sieve holes is vertically installed. The brush is composed of a plurality of fibers with moderate hardness, and the length of the fibers is the height value of the sieve.

Advantageously, the top of the screen cover 5 is provided with a motor 52, the output shaft of the motor 52 is sealed on the screen cover 5 in rotation, and the end of the output shaft of the motor 52 is connected with a fixing frame 53 of the screen 4. The sieve mount bottom is the brush, and when the sieve mesh was blockked up easily to the thinner sieve soil sample in top, starter motor prevented to block up the sieve mesh, influences screening efficiency.

In other embodiments of the invention, referring to figure 7, the screen cover 5 is provided with a telescopic frame 8 fixed to the oscillating base 2. The expansion bracket passes through the top connection frame, and the bottom connection frame is constituteed, and top connection frame top is fixed with the sieve lid, and strides and establish at the sieve lid top, and the bottom connection frame is fixed on swing base top lateral wall, and both junctions form the inserting groove, sets up a plurality of fixed orificess on the inserting groove, and according to the whole height of the altitude mixture control expansion bracket of sieve, it is fixed to insert the fixed orifices through the screw at last.

According to the invention, the fixed base 1 is made of metal material with larger weight, so that higher stability is provided for the whole device, the height of the tray is respectively 5cm, 10cm and 15cm according to different experimental requirements, and the diameter of the tray is the diameter of a standard geotechnical tray. The screen (geoscreen) is the diameter and height of a standard geoscreen.

The method comprises the following specific operation steps: and selecting the required height of the geotechnical pallet according to the requirement. And selecting required sieves according to the soil sample screening requirement, and stacking the sieves from small to large according to the particle size in sequence. Wherein the snap-fit components need to be snapped on from the first sieve stacked on the tray. After all the required sieves are stacked, soil samples to be screened are placed on the uppermost layer of sieve, and the height of the telescopic frame is adjusted, so that the brush cover can be seamlessly covered on the uppermost layer of sieve. When all the screen is ready, the power supply can be plugged in for screening. Wherein the motor of the brush cover only needs to be opened when the sieve holes are easily blocked when the soil sample of the uppermost layer is thinner.

Therefore, the invention has higher efficiency in soil screening; tray, sieve lid all are provided with rubber, great improvement the leakproofness to make the great reduction of the excessive condition of whole in-process dust, reduced the injury to the experimenter health, reduce the influence to the laboratory environment, played the environmental protection effect. The swing base is driven by the driving motor of the fixed base to swing left and right, and the swing speed is higher and more stable than that of manual left and right swing. The invention thoroughly solves the problems that the sieve is blocked and the soil sample cannot pass through in the soil sieving process through the rotation of the uppermost brush. Meanwhile, the whole composition cost of the equipment is low.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. An environmental laboratory soil screening device, comprising:

the device comprises a fixed base (1), wherein the top of the fixed base (1) forms an annular supporting area, and a driving part (11) is arranged in the middle of the supporting area;

the device comprises a swinging base (2), wherein a U-shaped mounting area is formed inside the swinging base (2); the driving part (11) drives the swinging base (2) to continuously and circularly swing relative to the supporting area;

the sieve component is arranged in the U-shaped mounting area and comprises a tray (3) and a plurality of sieves (4) which are sequentially fixed above the tray (3); the adjacent sieves (4) are clamped and connected in a sealing way;

and the screen cover (5) is used for sealing and fixing the screen opening of the top screen (4).

2. An environmentally friendly laboratory soil screening device according to claim 1, wherein the upper and lower edges of said screen (4) are provided with sealing members, and the outer side walls thereof are provided with snap-fit members (7) which are engaged with each other.

3. An environmentally friendly laboratory soil screening device according to claim 2, wherein the fastening components (7) comprise a first fastening component (71) and a second fastening component (72), and the first fastening component (71) and the second fastening component (72) are fittingly fixed on the outer walls of two adjacent screens (4) in a one-to-one correspondence manner.

4. An environment-friendly laboratory soil screening device according to claim 1, characterized in that the driving part (11) is a driving motor, the output end of the driving motor is upwards provided with a driving gear (12), and the bottom of the swinging base (2) is provided with a tooth socket (21) matched with the driving gear (12).

5. An environment-friendly laboratory soil screening device according to claim 4, characterized in that the driving gear (12) has a half-circle gear teeth on the circumference, the tooth grooves (21) form a strip-shaped groove, and the long sides of the strip-shaped groove are symmetrically provided with continuous teeth which are equal in length and are matched with the driving gear (12).

6. An environmentally friendly laboratory soil screening device according to claim 4, characterized in that the bottom of the swing base (2) is symmetrically provided with a first sliding part (22) opposite to the tooth socket (21); the top of the fixed base (1) is provided with a second sliding part (13) which is matched with the first sliding part (22) to slide.

7. An environmentally friendly laboratory soil screening device according to any one of claims 1 to 6, wherein a buffer spring (6) is installed between the side wall of the fixed base (1) and the side wall of the swinging base (2).

8. An environmentally friendly laboratory soil screening device according to any one of claims 1 to 6, wherein the bottom edge of said screen cover (5) is provided with a sealing strip; the inside of the sieve is vertically provided with a brush (51) for preventing the sieve pores from being blocked.

9. An environmental friendly laboratory soil screening device according to claim 8, characterized in that a motor (52) is arranged on the top of the screen cover (5), the output shaft of the motor (52) is rotationally sealed on the screen cover (5), and the end of the output shaft of the motor (52) is connected with the fixing frame (53) of the screen (4).

10. An environmentally friendly laboratory soil screening device according to claim 8, wherein the screen cover (5) is provided with an expansion bracket (8) fixed with the swing base (2).