CN116944026B - Soil screening device and application method thereof - Google Patents

Abstract

The invention discloses a soil screening device and a use method thereof, which relate to the technical field of soil screening and aim at the problems of complicated screening operation and low screening efficiency of the prior art, the screening device comprises a vibrating seat, a receiving box and a screw rod are arranged on the vibrating seat, a screen body is arranged on the receiving box, a screen cover is buckled on the screen body, a pressing seat for pressing the screen cover is connected on the screw rod in a threaded manner, the screen body comprises a screen frame and a screen mesh arranged in the screen frame, a flip cover is arranged on the side wall of the screen frame, the screen mesh is arranged on one side of the flip cover facing the screen frame, the bottom of the flip cover is rotationally connected with the screen frame, and a locking mechanism is arranged on one side of the flip cover facing away from the screen mesh and is used for vertically locking the flip cover on the screen frame; the using method of the screening device comprises the following steps of pulling the rotating shaft downwards, turning the turnover cover to be horizontal, grinding the unscreened soil on the turnover cover, turning the turnover cover upwards, starting the vibrating seat to vibrate and screen until the soil is completely screened. The invention can simplify screening operation so as to improve screening efficiency.

Description

Soil screening device and application method thereof

Technical Field

The invention relates to the technical field of soil screening, in particular to a soil screening device and a use method thereof.

Background

Pretreatment operations such as drying, classification, grinding, sieving, sample separation, digestion, bottling, etc. are required before the soil is detected. Some of these tests have certain requirements on the particle size of the soil, which requires screening out the soil meeting the test requirements. For example, in soil organic matter detection and soil total nitrogen detection, it is required that soil pass through 60 mesh, 100 mesh, or the like.

When the soil is screened, the soil screened each time needs to be screened completely, coarse grain parts which are difficult to grind cannot be discarded, otherwise, the composition of a sample is changed to lose the original representativeness, and the detection result is error. For example, when it is desired to take soil that passes through a 60 mesh screen (i.e., a 0.25mm screen), it is desired to take a portion of the soil that passes through a 0.5mm or 1mm screen, grind it through a 0.25mm screen, and pass through regrind and screen until all passes through.

The current screening plant adopts the top to hit formula shale shaker generally, including the vibration seat, has placed on the vibration seat and has accepted the box, has accepted the box and has placed the screen frame on, and the top of screen frame is detained and is equipped with the sieve lid, is equipped with the screw rod on the vibration seat, and threaded connection has the seat of pressing that is used for pressing the sieve lid on the screw rod.

In the process of sieving the soil, the soil which is not sieved needs to be taken out and ground at any time, so the following operations need to be carried out at any time: unscrewing the screen cover, taking out the screen body, pouring the unscreened soil in the screen body on a wood board for grinding, grinding the unscreened soil, pouring the soil into the screen body again after grinding, putting the screen body on the bearing box again, covering the screen cover, screwing the screen cover to press the screen cover again, starting the vibration seat to carry out vibration screening on the soil, and repeating the above operation until the soil is completely screened. Above-mentioned screening complex operation has reduced screening efficiency.

Disclosure of Invention

The invention aims at the defects in the prior art, and provides a soil screening device and a using method thereof.

In order to achieve the above purpose, the invention provides the following technical scheme:

the utility model provides a soil screening plant, including vibrating seat, be equipped with on the vibrating seat and accept box and screw rod, accept and be equipped with the screen frame on the box, buckle on the screen frame and be equipped with the screen cover, threaded connection has the seat that presses that is used for pressing the screen cover on the screw rod, the screen frame includes the reel and locates the inside screen cloth of reel, the lateral wall of reel is equipped with flip, flip is equipped with the screen cloth in the one side towards the reel inside, flip's bottom is rotated with the reel and is connected, flip is equipped with locking mechanism in the one side that deviates from the screen cloth, locking mechanism is used for vertical locking of flip on the reel.

Further, the locking mechanism comprises a locking seat, a movable seat, a fixed seat, a locking rod, a resistance increasing structure, a shearing fork rod, a rotating shaft and a bearing seat, wherein the locking seat is arranged at the top of the side wall of the screen frame, a locking hole is formed in the locking seat, the flip is provided with the movable seat and the fixed seat on one side deviating from the screen, the movable seat is in sliding connection with the flip along the direction close to or far away from the fixed seat, the locking rod is arranged on the movable seat, the resistance increasing structure matched with the locking hole is arranged on the surface of the locking rod, the shearing fork rods are rotationally connected on the movable seat and the fixed seat, the middle parts of the shearing fork rods on the movable seat and the fixed seat are rotationally connected through the rotating shaft, the bearing seat is arranged at the bottom of the side wall of the vibration seat, and the elastic limiting seat is arranged on the top surface of the bearing seat;

when the locking rod is inserted into the locking hole, the flip cover is in a vertical state, the screen is in a horizontal state, and the movable seat and the shearing fork rod on the fixed seat are in a vertical state;

when the locking rod exits the locking hole, and the bottoms of the shearing fork rods on the movable seat and the fixed seat are all abutted to the top surface of the bearing seat, the bottoms of the shearing fork rods on the fixed seat are abutted to the side wall of the elastic limiting seat, the bottoms of the shearing fork rods on the movable seat are abutted to the side wall of the vibrating seat, the flip cover is in a horizontal state, and the screen mesh is in a vertical state.

Further, the flip is equipped with the slide rail in deviating from one side of screen cloth, the movable seat is along being close to the fixing base or keep away from the direction and slide rail sliding fit of fixing base.

Furthermore, the resistance increasing structure adopts resistance increasing convex patterns arranged on the surface of the locking rod.

Further, the top surface of the bearing seat is provided with a limit groove, the elastic limit seat comprises a shell arranged in the limit groove and a reset spring arranged in the shell, the shell is connected with the groove bottom of the limit groove through the reset spring, and the top surface of the shell is provided with an arc-shaped surface.

Further, still include cleaning mechanism, cleaning mechanism includes brush, slider, slide pin, the screen cloth includes the frame and locates the cell body of frame inner circle, the left end of frame with flip is connected, and both sides all are equipped with the baffle around the frame, are equipped with the slot hole on the baffle, the inner wall all is equipped with the arc wall around the screen frame, and the concave side of arc wall sets up downwards, and the brush hair and the surface contact of cell body of brush all are equipped with the slider around the brush, slider and slot hole sliding fit, and the slider is equipped with the slide pin in the one end of keeping away from the brush, slide pin and arc wall sliding fit.

Further, a protective cover is arranged on one side of the brush, which is away from the net body.

The application method of the soil screening device comprises the following steps:

(1) The rotating shaft is pulled downwards, so that the movable seat slides towards the direction close to the fixed seat, the locking rod withdraws from the locking hole, the movable seat and the shearing fork rod on the fixed seat gradually leave the turnover cover, the turnover cover turns downwards, the bottoms of the shearing fork rods on the fixed seat are pressed downwards and pass through the elastic limit seat, when the bottoms of the movable seat and the shearing fork rod on the fixed seat are abutted against the top surface of the supporting seat, the bottoms of the shearing fork rods on the fixed seat are abutted against the side wall of the elastic limit seat, the bottoms of the shearing fork rods on the movable seat are abutted against the side wall of the vibration seat, the turnover cover turns from a vertical state to a horizontal state, and the screen mesh turns from the horizontal state to the vertical state, and the unscreened soil on the screen mesh falls onto the turnover cover;

(2) Grinding the unsieved soil on the flip cover;

(3) After finishing grinding, pressing down the elastic limit seat, pushing the rotating shaft upwards to enable the movable seat to slide in a direction away from the fixed seat, enabling the movable seat and the shearing fork rod on the fixed seat to gradually lean against the flip cover, enabling the flip cover to turn upwards, enabling the screen to turn to a horizontal state when the flip cover is turned to a vertical state when the locking rod is inserted into the locking hole, enabling the ground soil on the flip cover to fall on the screen, and enabling the movable seat and the shearing fork rod on the fixed seat to be in a vertical state;

(4) Starting the vibration seat to enable the soil on the screen to vibrate and screen;

(5) Repeating the steps (1) to (4) until the soil is completely sieved.

Further, in the step (2), the unsieved soil on the flip cover is ground using a wood stick.

Compared with the prior art, the invention has the beneficial effects that:

1. in the soil screening apparatus of the present invention, since the flip cover and the screen are mounted together, the flip cover and the screen can be moved together. On the one hand, when the turnover cover is turned to a horizontal state, the screen mesh can rotate together to a vertical state, so that the unscreened soil on the screen mesh can be poured onto the turnover cover, a grinding foundation is provided for grinding the unscreened soil on the turnover cover, and compared with a series of operations of 'unscrewing a pressing seat, taking a screen cover, taking out a screen body and pouring the unscreened soil in the screen body on a board for grinding' in the prior art, the process is simpler and more convenient; on the other hand, when the flip rotates to the vertical state, the screen can be rotated back to the horizontal state together, and the ground soil can fall onto the screen for vibration sieving, so that the method is simpler and more convenient compared with a series of operations of pouring the ground soil into the screen again, placing the screen on the bearing box again, covering the screen cover, screwing the pressing seat and pressing the screen cover again in the prior art. In summary, the soil screening device of the invention can simplify screening operation and improve screening efficiency.

2. When the locking rod is inserted in the locking hole, the flip is in a vertical state of being locked on the screen frame, the screen is in a horizontal state, the scissor rod on the movable seat and the fixed seat is in a vertical folding state, the scissor rod on the movable seat and the fixed seat is prevented from hanging and supporting the edge outside, collision with workers is avoided, the overall compactness of the device is improved, the gravity center is stabilized, and therefore the stability of the device is improved when the device is integrally screened through vibration.

3. When the locking rod exits the locking hole and the flip rotates to be in a horizontal state, the screen is in a vertical state, the bottoms of the scissor rods on the fixed seat are abutted to the side wall of the elastic limiting seat, the bottoms of the scissor rods on the movable seat are abutted to the side wall of the vibration seat, at the moment, if the flip is pressed downwards, the scissor rods on the movable seat and the fixed seat can be limited in the horizontal direction, and the flip can be kept in a horizontal stable state.

Thereby, locking mechanism has brought unexpected effect, and locking mechanism not only can lock the flip of vertical state, and guarantee flip can not open when vibrating, can also play the supporting role to the flip of horizontal state to when grinding the soil that does not sieve on the flip, guarantee flip's stability.

4. Because locking mechanism sets up on flip, and locking mechanism can support the flip of horizontality, so need not to seek other supports temporarily and go to support flip, locking mechanism can take at any time, has saved the time of seeking the support, is favorable to further raise the efficiency.

5. It is also unexpected that because the flip cover can be used to grind the unscreened soil, there is soil residue on the flip cover, and in the process of closing the flip cover to perform vibration screening, the residual soil on the flip cover can fall onto the screen again to screen under the action of vibration, thereby reducing the soil waste, being beneficial to saving detection samples and saving resources. In the background art, the soil which is not screened is ground on the wood board, after the grinding is finished, the soil is poured back into the screen body, the screen body continues to vibrate and screen, and the residual soil on the wood board is inconvenient to collect and use, so that waste is caused.

6. Because flip can follow vertical to the level, the screen cloth can follow the level and change to vertical, so can change the screen cloth to vertical state, the screen cloth exposes outside this moment, makes things convenient for the staff to inspect whether the screen cloth has the damage, is favorable to improving maintenance efficiency.

7. Because flip can be from vertical to the level, the screen cloth can be from the level to vertical, so can be when flip changes to the level, add soil on to flip, when flip changes back vertical, can accomplish the interpolation of soil, need not to adopt the mode of opening the sieve lid to add soil, be convenient for add the material, be favorable to improving feeding efficiency.

8. The cleaning mechanism disclosed by the invention can adapt to the overturning action of the screen, when the screen is horizontally rotated to be vertical, the brush in the cleaning mechanism can clean the screen once, when the screen is horizontally rotated to be horizontal, the brush is reset, other power sources are not required to be used, so that the device saves energy, additional time is not required to be consumed for cleaning the screen, the maintenance is convenient, and the maintenance efficiency is improved.

Drawings

FIG. 1 is a perspective view of a vibration mount with a screw and a press mount;

FIG. 2 is a second perspective view of a vibration mount with a screw and a press mount;

FIG. 3 is a perspective view of a vibration mount with a screw and a press mount in section;

FIG. 4 is a perspective view of the cartridge;

FIG. 5 is an assembled perspective view of the flip cover, screen and locking mechanism of example 1;

FIG. 6 is an assembled perspective view of the flip cover, screen and locking mechanism of example 1;

FIG. 7 is a perspective view of a screen frame of example 1;

FIG. 8 is an assembled perspective view of the screen frame, flip cover, screen and locking mechanism of example 1;

FIG. 9 is a state diagram I of the soil screening apparatus of example 1;

FIG. 10 is a second state diagram of the soil screening apparatus of example 1;

FIG. 11 is a third state diagram of the soil screening apparatus of example 1;

FIG. 12 is a fourth state diagram of the soil screening apparatus of example 1;

FIG. 13 is a fifth state diagram of the soil screening apparatus of example 1;

FIG. 14 is a state diagram six of the soil screening apparatus of example 1;

FIG. 15 is a schematic view of a portion of the structure of FIG. 14 in a left-hand direction;

fig. 16 is a state diagram showing the lock lever of embodiment 1 inserted in the lock hole;

FIG. 17 is a schematic structural diagram of an elastic limit seat according to embodiment 1;

FIG. 18 is an assembled perspective view of the flip cover, screen and cleaning mechanism of example 2;

FIG. 19 is an assembled perspective view of the flip cover, screen and cleaning mechanism with the shield removed of example 2;

FIG. 20 is a perspective view of a screen frame of example 2;

FIG. 21 is a view showing a partial construction of a soil screening apparatus according to example 2;

FIG. 22 is a second partial structural view of the soil screening apparatus of example 2;

fig. 23 is a partial structural view of the soil screening apparatus of example 2.

In the figure:

1-vibration seat, 11-vibration shell, 111-base, 12-driver, 13-cam, 14-supporting plate, 15-supporting bar, 16-elastic piece,

2-a receiving box for receiving the first and second containers,

3-screen body, 31-screen frame, 311-flip cover, 3111-flip cover pin shaft, 3112-slide rail, 31121-stop block, 312-arc groove, 32-screen, 321-frame, 3211-baffle, 32111-slot, 322-screen body,

4-a screen cover, wherein the screen cover is provided with a plurality of grooves,

5-a screw rod, wherein the screw rod is provided with a screw hole,

6-a pressing seat for pressing the base,

7-locking mechanism, 71-locking seat, 711-locking hole, 7111-resistance increasing concave part, 72-movable seat, 73-fixed seat, 74-locking rod, 75-resistance increasing structure, 76-scissor rod, 761-scissor rod pin, 77-rotating shaft, 78-bearing seat, 781-elastic limit seat, 7811-shell, 7812-reset spring, 782-limit groove,

8-cleaning mechanism, 81-brush, 811-protective cover, 82-slider, 83-slide pin.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1:

a soil screening device comprises a vibrating seat 1, wherein a bearing box 2 shown in fig. 4 is arranged on the vibrating seat 1, and the bearing box 2 is used for bearing screened soil. As shown in fig. 9-14, the top of the receiving box 2 is provided with a screen body 3, and the top of the screen body 3 is buckled with a screen cover 4. The vibration seat 1 is provided with a screw 5, the screw 5 is connected with a pressing seat 6 in a threaded manner, and the pressing seat 6 is used for pressing the screen cover 4.

When the pressing seat 6 is screwed upwards, the pressing seat 6 gradually leaves the screen cover 4, so that the pressing of the pressing seat 6 on the screen cover 4 is released, and the screen cover 4, the screen body 3 and the receiving box 2 can be taken away at the moment.

When the pressing seat 6 is screwed downwards, the pressing seat 6 gradually approaches the screen cover 4, and when the pressing seat 6 presses the screen cover 4 on the screen body 3, the screen cover 4, the screen body 3 and the receiving box 2 are fixed on the vibration seat 1.

As shown in fig. 1 to 3, the present embodiment provides a specific structure of the vibration seat 1. The vibration seat 1 includes a vibration housing 11, a driver 12, a cam 13, a support plate 14, a support rod 15, and an elastic member 16.

As shown in fig. 3, a base 111 is disposed on a side wall of the vibration shell 11, a driver 12 is mounted on the base 111, the driver 12 may employ a gear motor, an output shaft of the gear motor extends into the vibration shell 11, the output shaft of the gear motor is rotatably connected with the side wall of the vibration shell 11 through a bearing, and a cam 13 is mounted at one end of the output shaft of the gear motor extending into the vibration shell 11.

As shown in fig. 3, the cam 13 abuts against the bottom surface of the support plate 14, the bottom surface of the support plate 14 is connected with the top of the support rod 15 through the elastic member 16, the bottom of the support rod 15 is installed inside the vibration shell 11, the elastic member 16 can adopt a spring, and the support plate 14 has a downward movement tendency under the action of the elastic force of the elastic member 16.

When the gear motor is started, the gear motor drives the cam 13 to rotate, and when the distal end of the cam 13 is abutted against the bottom surface of the support plate 14, the support plate 14 moves upwards against the elastic force of the elastic piece 16, and at the moment, the support plate 14 is jacked up by the cam 13; when the distal end of the cam 13 leaves the bottom surface of the support plate 14, the support plate 14 moves downward under the action of the elastic member 16; when the proximal end of the cam 13 abuts against the bottom surface of the support plate 14, the support plate 14 is lowered to the lowest position. Along with the continuous rotation of the cam 13, the supporting plate 14 continuously rises and falls, and the screen body 3 positioned on the supporting plate 14 vibrates, so that the vibrating screening effect on the soil in the screen body 3 is realized.

In addition to the vibration seat 1 provided in this embodiment, other vibration devices that can vibrate the screen 3 may be used as the vibration seat 1.

As shown in fig. 8, the screen body 3 includes a screen frame 31 and a screen mesh 32 provided inside the screen frame 31. The side wall of the screen frame 31 is provided with a flip 311, the bottom of the flip 311 is rotationally connected with the screen frame 31 through a flip pin shaft 3111, and the flip 311 is provided with a screen 32 on one side facing the inside of the screen frame 31.

When the flip 311 is in the vertical state, the screen 32 is in the horizontal state, and the screen 32 can be used for sieving. When the flip 311 is turned to a horizontal state as shown in fig. 8, the screen 32 is in a vertical state, and the soil on the screen 32, which is not screened, can naturally fall onto the flip 311.

As shown in fig. 6, the flap 311 is provided with a locking mechanism 7 on the side facing away from the screen 32. As shown in fig. 14 or 15, the locking mechanism 7 is used to lock the flip 311 to the screen frame 31, so that the flip 311 is kept in a vertical state, and the flip 311 is prevented from being turned over during vibration screening.

As shown in fig. 5 to 16, the locking mechanism 7 includes a locking seat 71, a movable seat 72, a fixed seat 73, a locking lever 74, a resistance increasing structure 75, a scissor lever 76, a rotating shaft 77, and a support seat 78.

As shown in fig. 7 to 8, a locking seat 71 is installed at the top of the sidewall of the screen frame 31, and a locking hole 711 is provided in the locking seat 71.

As shown in fig. 6, the flip 311 is provided with a movable seat 72 and a fixed seat 73 on a side facing away from the screen 32. The movable seat 72 is slidably matched with a sliding rail 3112 mounted on the flip 311 along a direction approaching to the fixed seat 73 or away from the fixed seat 73, one end of the sliding rail 3112, which is close to the fixed seat 73, is provided with a stop block 31121, and the stop block 31121 is used for preventing the movable seat 72 from sliding continuously.

As shown in fig. 6, the movable seat 72 is provided with a locking lever 74, and as shown in fig. 16, the surface of the locking lever 74 is provided with a resistance increasing structure 75, and when the locking lever 74 is inserted into the locking hole 711, the resistance increasing structure 75 is used for increasing friction resistance between the locking lever 74 and the locking hole 711, so as to improve stability of the locking lever 74 inserted into the locking hole 711.

As shown in fig. 16, the resistance increasing structure 75 may employ resistance increasing ribs provided on the surface of the locking lever 74. In order to further improve the stability of the locking lever 74 inserted into the locking hole 711, the wall of the locking hole 711 is provided with a resistance increasing recess 7111, and the resistance increasing recess 7111 is engaged with the resistance increasing ridge.

As shown in fig. 6, the movable seat 72 and the fixed seat 73 are both rotatably connected with a scissor lever 76 through a scissor lever pin shaft 761, and the middle parts of the scissor lever 76 on the movable seat 72 and the fixed seat 73 are rotatably connected through a rotating shaft 77.

As shown in fig. 9-14, the bearing bracket 78 is mounted on the side wall of the vibration seat 1, as shown in fig. 17, the top surface of the bearing bracket 78 is provided with an elastic limit seat 781 and a limit groove 782, the elastic limit seat 781 comprises a housing 7811 arranged in the limit groove 782 and a return spring 7812 arranged in the housing 7811, the housing 7811 is connected with the bottom of the limit groove 782 through the return spring 7812, under the action of the elastic force of the return spring 7812, the housing 7811 can extend upwards from the inside of the limit groove 782, and the top surface of the housing 7811 is provided with an arc surface.

The application method of the soil screening device comprises the following steps:

(1) Referring to the state change of fig. 14 to 13, the worker pulls the rotation shaft 77 downward so that the movable base 72 gradually slides in a direction approaching the fixed base 73, the locking lever 74 gradually withdraws from the locking hole 711, and the movable base 72 and the scissors lever 76 on the fixed base 73 gradually leave the flip 311.

Referring to fig. 13, when the locking lever 74 is completely withdrawn from the locking hole 711, the flip 311 can be released from the locked state with the screen frame 31.

Because the surface of the locking lever 74 is provided with a resistance increasing ridge which increases the friction between the locking lever 74 and the locking hole 711, it is necessary to pull the rotation shaft 77 downward with force to withdraw the locking lever 74 from the locking hole 711.

Referring to the state change of fig. 13 to 10, when the rotation shaft 77 is continuously pulled downward, the flip 311 gradually turns downward and gradually goes to be horizontal, the screen 32 gradually goes to be vertical, and the unscreened soil on the screen 32 also gradually falls onto the flip 311.

Referring to fig. 10 to 9, when the bottom of the scissor lever 76 on the fixing base 73 contacts the arc surface of the housing 7811 in the elastic limit base 781, the rotating shaft 77 is continuously pulled down, and the bottom of the scissor lever 76 on the fixing base 73 can press the housing 7811 against the elastic force of the return spring 7812 until the bottom of the scissor lever 76 on the fixing base 73 passes over the elastic limit base 781.

As shown in fig. 9, after the bottom of the scissor lever 76 on the fixed base 73 passes over the elastic limit base 781, the housing 7811 in the elastic limit base 781 is reset under the elastic force of the return spring 7812, the bottom of the scissor lever 76 on the fixed base 73 abuts against not only the top surface of the supporting base 78 but also the side wall of the housing 7811, the scissor lever 76 on the movable base 72 abuts against not only the top surface of the supporting base 78 but also the side wall of the vibrating base 1, at this time, the flip 311 is turned to a horizontal state, the screen 32 is turned to a vertical state, and the soil on the screen 32 that is not screened falls down onto the flip 311.

(2) The worker may roll grind the unscreened soil on the flip 311 using a wood stick.

(3) After finishing grinding, referring to the state change of fig. 9 to 14, the worker first manually presses the housing 7811 in the elastic limit seat 781, so that the bottom end of the scissor lever 76 on the fixing seat 73 can pass through the housing 7811; and then the rotating shaft 77 is pushed upwards, so that the movable seat 72 is far away from the fixed seat 73, the shearing rods 76 on the movable seat 72 and the fixed seat 73 are gradually abutted against the turnover cover 311, the turnover cover 311 is turned upwards, when the locking rod 74 is reinserted into the locking hole 711, the turnover cover 311 is turned to a vertical state, the screen mesh 32 is turned to a horizontal state, the ground soil on the turnover cover 311 basically falls on the screen mesh 32, and the shearing rods 76 on the movable seat 72 and the fixed seat 73 are in a vertical state.

Since the surface of the locking lever 74 is provided with the resistance increasing structure 75, friction resistance between the locking lever 74 and the locking hole 711 can be increased, stability of the locking lever 74 inserted into the locking hole 711 can be improved, and stability of the flip cover 311 locked on the screen frame 31 can be improved.

(4) Activating the vibration seat 1 to enable the soil on the screen 32 to vibrate and screen;

(5) Repeating the steps (1) to (4) until the soil is completely sieved.

According to the above step (1), the locking of the flip 311 on the screen frame 31 can be released by only pulling the rotating shaft 77, and the screen 32 can be rotated from the horizontal state to the vertical state while the flip 311 is opened to the horizontal state, so that the unscreened soil on the screen 32 can be poured onto the flip 311, and a grinding foundation is provided for grinding the unscreened soil on the flip 311. Compared with a series of operations of unscrewing the pressing seat 6, taking the sieve cover 4 out, taking the sieve body 3 out and pouring the soil which is not sieved in the sieve body 3 on the wood board for grinding in the background art, the method is simpler and more convenient.

According to the above step (2), the flip 311 turned to the horizontal state can be used as a wood board for grinding the soil which is not screened. Moreover, when the flip 311 rotates to be horizontal, because the bottom of the scissor rod 76 on the fixed seat 73 is propped against the side wall of the housing 7811 of the elastic limit seat 781, the bottom of the scissor rod 76 on the movable seat 72 is propped against the side wall of the vibration seat 1, when the flip 311 is pressed downwards, the movable seat 72 and the scissor rod 76 on the fixed seat 73 can be limited in the horizontal direction, so that the horizontal state of the flip 311 can be maintained when the soil is ground, and the stability of the grinding process is improved.

As can be seen from the above step (3), the cover 311 can be closed by only pressing the elastic limiting seat 781 and pushing up the rotating shaft 77, and the ground soil can be poured onto the screen 32 to be screened by vibration. Compared with a series of operations of pouring the ground soil into the screen body 3 again, putting the screen body 3 on the bearing box 2 again, covering the screen cover 4 and screwing the pressing seat 6 to press the screen cover 4 again in the prior art, the method is simpler and more convenient.

In summary, in the soil screening apparatus of the present embodiment, since the flip 311 and the screen 32 are mounted together, the flip 311 and the screen 32 can be operated together. On the one hand, when the turnover cover 311 is turned to a horizontal state, the screen mesh 32 can rotate together to a vertical state, so that the unscreened soil on the screen mesh 32 can be poured onto the turnover cover 311, and a grinding foundation is provided for grinding the unscreened soil on the turnover cover 311, and compared with a series of operations of 'unscrewing the pressing seat 6, taking the screen cover 4, taking out the screen body 3 and pouring the unscreened soil in the screen body 3 onto a wood board for grinding' in the prior art, the process is simpler and more convenient; on the other hand, when the flip 311 is turned to the vertical state, the screen 32 can be turned back to the horizontal state together, and the ground soil can fall onto the screen 32 to be screened by vibration, which is simpler than the series of operations of "pouring the ground soil into the screen 3 again, putting the screen 3 onto the receiving box 2 again, covering the screen cover 4, screwing the pressing seat 6 and pressing the screen cover 4 again" in the related art. Therefore, the soil screening device of the embodiment can simplify screening operation and improve screening efficiency.

When the locking rod 74 is inserted into the locking hole 711, the flip 311 is in a vertical state locked on the screen frame 31, the screen 32 is in a horizontal state, the movable seat 72 and the scissor rod 76 on the fixed seat 73 are in a vertical folding state as shown in fig. 14, the suspended supporting edges of the movable seat 72 and the scissor rod 76 on the fixed seat 73 are prevented from being out, collision with workers is avoided, the overall compactness of the device is improved, the gravity center is stabilized, and therefore the stability of the device is improved when the device is integrally screened through vibration.

When the locking rod 74 exits the locking hole 711 and the flip 311 rotates to a horizontal state, the screen 32 is in a vertical state, the bottoms of the movable seat 72 and the scissor rods 76 on the fixed seat 73 are all abutted against the top surface of the supporting seat 78, the bottoms of the scissor rods 76 on the fixed seat 73 are also abutted against the side wall of the housing 7811 of the elastic limiting seat 781, and the bottoms of the scissor rods 76 on the movable seat 72 are also abutted against the side wall of the vibration seat 1, at this time, if the flip 311 is pressed downwards, the scissor rods 76 on the movable seat 72 and the fixed seat 73 can be horizontally limited, so that the flip 311 maintains a horizontal stable state.

Thereby, locking mechanism 7 has brought unexpected effect, and locking mechanism 7 not only can lock flip 311 of vertical state, and guarantee flip 311 can not open when vibrating, can also play the supporting role to flip 311 of horizontal state to when grinding the soil that does not sieve on flip 311, guarantee flip 311's stability.

Because locking mechanism 7 sets up on flip 311, and locking mechanism 7 can support flip 311 of horizontality, so need not to seek other supports temporarily and go to support flip 311, locking mechanism 7 can take at any time, has saved the time of seeking the support, is favorable to further raise the efficiency.

It is also unexpected that, because the flip 311 can be used to grind the unscreened soil, there is a residue of soil on the flip 311, and during the process of closing the flip 311 to perform vibration screening, the residue of soil on the flip 311 can fall again onto the screen 32 to screen under the action of vibration, thereby reducing the waste of soil, being beneficial to saving the detection sample and saving resources. In the background art, the soil which is not screened is ground on the wood board, after the grinding is finished, the soil is poured back into the screen body 3, the screen body 3 continues to vibrate and screen, and the residual soil on the wood board is inconvenient to collect and use, so that waste is caused.

Because flip 311 can be from vertical to horizontal, screen cloth 32 can be from horizontal to vertical, so can be with screen cloth 32 to vertical state, screen cloth 32 exposes outside this moment, makes things convenient for the staff to inspect whether screen cloth 32 has the damage, is favorable to improving maintenance efficiency.

Because flip 311 can be from vertical to the level, screen cloth 32 can be from the level to vertical, so can be when flip 311 changes to the level, add soil on flip 311, when flip 311 changes back vertical, can accomplish the interpolation of soil, need not to adopt the mode of opening sieve lid 4 to add soil, be convenient for add the material, be favorable to improving charging efficiency.

Example 2:

a soil screening apparatus of this embodiment 2 further comprises a cleaning mechanism 8.

As shown in fig. 19, the cleaning mechanism 8 includes a brush 81, a slider 82, and a slide pin 83.

As shown in fig. 18-19, the screen 32 includes a frame 321 and a mesh body 322 disposed inside the frame 321. The left end of frame 321 and flip 311 fixed connection, the front and back both sides of frame 321 all are equipped with baffle 3211, are equipped with slot 32111 on the baffle 3211.

As shown in fig. 20, the front and rear inner walls of the screen frame 31 are provided with arc grooves 312, and the concave sides of the arc grooves 312 are disposed downward.

As shown in fig. 19, the brush 81 is provided with a shield 811 on the side facing away from the net body 322 on the surface of the bristle contact net body 322 of the brush 81 as shown in fig. 18. As shown in fig. 19, the brush 81 is provided with a slider 82 at both front and rear ends thereof, the slider 82 is slidably engaged with the long hole 32111, the slider 82 is provided with a slide pin 83 at one end remote from the brush 81, and the slide pin 83 is slidably engaged with the arc-shaped groove 312.

Referring to the state change of fig. 23 to 21, when the flip 311 is flipped down, the flip 311 brings the screen 32 to flip together, so that the screen 32 is gradually changed from the horizontal state to the vertical state. In this changing process, the lower hole wall of the long hole 32111 pushes the slider 82 to the left, the slider 82 drives the sliding pin 83 to move together with the brush 81, and the sliding pin 83 is guided by the arc slot 312, so that the brush 81 moves from the right end of the arc slot 312 to the left end of the arc slot 312 along the track of the arc slot 312 when the arc slot 312 is taken as a reference, and the brush 81 gradually moves from the right end of the long hole 32111 to the left end of the long hole 32111 along the track of the long hole 32111 when the long hole 32111 is taken as a reference. In the moving process of the brush 81 from right to left, the brush 81 cleans the residual soil on the screen 32 from the right end of the screen 32 to the left end of the screen 32, when the screen 32 rotates to be vertical, the brush 81 finishes cleaning, and the residual soil on the screen 32 is completely cleaned to the flip 311 by the brush 81, so that the residual soil on the screen 32 is reduced, and the probability of blocking the screen 32 by the soil is reduced.

See fig. 21 to 23 for state changes. When the flip 311 is turned upwards, the screen 32 is gradually changed from the vertical state to the horizontal state, in the process, the upper hole wall of the long hole 32111 pushes the sliding block 82 rightward, and the sliding block 82 drives the sliding pin 83 to move together with the brush 81, so that the brush 81 is reset from the left end of the screen 32 to the right end of the screen 32.

Through the process, the cleaning mechanism 8 can adapt to the overturning action of the screen cloth 32, when the screen cloth 32 is horizontally rotated to be vertical, the hairbrush 81 in the cleaning mechanism 8 can clean the screen cloth 32 once, when the screen cloth 32 is vertically rotated to be horizontal, the hairbrush 81 is reset, other power sources are not needed, the device saves energy, the screen cloth 32 is not required to be cleaned in extra time, the maintenance is convenient, and the maintenance efficiency is improved.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims (8)

1. The utility model provides a soil screening plant, includes the vibration seat, is equipped with on the vibration seat and accepts box and screw rod, accepts the box and is equipped with the screen frame, buckles on the screen frame and is equipped with the screen cover, threaded connection has the seat that presses that is used for pressing the screen cover on the screw rod, and the screen frame includes the reel and locates the inside screen cloth of reel, its characterized in that, the lateral wall of reel is equipped with flip, and flip is equipped with in the one side that faces the reel inside the screen cloth, and the bottom and the reel rotation of flip are connected, and flip is equipped with locking mechanism in the one side that deviates from the screen cloth, and locking mechanism is used for vertically locking flip on the reel;

the locking mechanism comprises a locking seat, a movable seat, a fixed seat, a locking rod, a resistance increasing structure, a shearing fork rod, a rotating shaft and a bearing seat, wherein the locking seat is arranged at the top of the side wall of the screen frame;

when the locking rod is inserted into the locking hole, the flip cover is in a vertical state, the screen is in a horizontal state, and the movable seat and the shearing fork rod on the fixed seat are in a vertical state;

when the locking rod exits the locking hole, and the bottoms of the shearing fork rods on the movable seat and the fixed seat are all abutted to the top surface of the bearing seat, the bottoms of the shearing fork rods on the fixed seat are abutted to the side wall of the elastic limiting seat, the bottoms of the shearing fork rods on the movable seat are abutted to the side wall of the vibrating seat, the flip cover is in a horizontal state, and the screen mesh is in a vertical state.

2. A soil screening apparatus according to claim 1, wherein the flip is provided with a slide rail on a side facing away from the screen, the movable seat being in sliding engagement with the slide rail in a direction towards or away from the fixed seat.

3. A soil screening apparatus according to claim 1, wherein said resistance increasing means comprises resistance increasing ribs provided on a surface of said locking bar.

4. The soil screening apparatus according to claim 1, wherein the top surface of the supporting seat is provided with a limit groove, the elastic limit seat comprises a shell arranged in the limit groove and a return spring arranged in the shell, the shell is connected with the bottom of the limit groove through the return spring, and the top surface of the shell is provided with an arc-shaped surface.

5. The soil screening device according to claim 1, further comprising a cleaning mechanism, wherein the cleaning mechanism comprises a brush, a sliding block and sliding pins, the screen comprises a frame and a net body arranged on the inner ring of the frame, the left end of the frame is connected with the flip cover, the front side and the rear side of the frame are respectively provided with a baffle plate, long holes are formed in the baffle plates, the front inner wall and the rear inner wall of the frame are respectively provided with an arc-shaped groove, the concave sides of the arc-shaped grooves are downwards arranged, the brush bristles of the brush are in contact with the surface of the net body, the front end and the rear end of the brush are respectively provided with the sliding blocks, the sliding blocks are in sliding fit with the long holes, and the sliding pins are arranged at one ends far away from the brush and are in sliding fit with the arc-shaped grooves.

6. A soil screening apparatus as claimed in claim 5, wherein said brush is provided with a shield on a side facing away from said mesh body.

7. A method of using a soil screening apparatus as claimed in any one of claims 1 to 6, comprising the steps of:

(1) The rotating shaft is pulled downwards, so that the movable seat slides towards the direction close to the fixed seat, the locking rod withdraws from the locking hole, the movable seat and the shearing fork rod on the fixed seat gradually leave the turnover cover, the turnover cover turns downwards, the bottoms of the shearing fork rods on the fixed seat are pressed downwards and pass through the elastic limit seat, when the bottoms of the movable seat and the shearing fork rod on the fixed seat are abutted against the top surface of the supporting seat, the bottoms of the shearing fork rods on the fixed seat are abutted against the side wall of the elastic limit seat, the bottoms of the shearing fork rods on the movable seat are abutted against the side wall of the vibration seat, the turnover cover turns from a vertical state to a horizontal state, and the screen mesh turns from the horizontal state to the vertical state, and the unscreened soil on the screen mesh falls onto the turnover cover;

(2) Grinding the unsieved soil on the flip cover;

(3) After finishing grinding, pressing down the elastic limit seat, pushing the rotating shaft upwards to enable the movable seat to slide in a direction away from the fixed seat, enabling the movable seat and the shearing fork rod on the fixed seat to gradually lean against the flip cover, enabling the flip cover to turn upwards, enabling the screen to turn to a horizontal state when the flip cover is turned to a vertical state when the locking rod is inserted into the locking hole, enabling the ground soil on the flip cover to fall on the screen, and enabling the movable seat and the shearing fork rod on the fixed seat to be in a vertical state;

(4) Starting the vibration seat to enable the soil on the screen to vibrate and screen;

(5) Repeating the steps (1) to (4) until the soil is completely sieved.

8. The method of using a soil screening apparatus according to claim 7, wherein in step (2), wood sticks are used to grind the unsieved soil on the flip cover.