CN113198725A

CN113198725A - Gravel screening device capable of controlling screen holes in building construction

Info

Publication number: CN113198725A
Application number: CN202110500476.1A
Authority: CN
Inventors: 路耀武
Original assignee: Individual
Current assignee: Dongguan Baoying Building Materials Co ltd
Priority date: 2021-05-08
Filing date: 2021-05-08
Publication date: 2021-08-03
Anticipated expiration: 2041-05-08
Also published as: CN113198725B

Abstract

The invention relates to a gravel screening device capable of controlling sieve pores in building construction, which comprises a bottom plate, a separating mechanism and a circulating feeding mechanism, wherein the separating mechanism is installed at the top of the bottom plate, the circulating feeding mechanism is arranged on one side, close to the separating mechanism, of the top of the bottom plate, and the circulating feeding mechanism is connected with the separating mechanism. The sand and stone separating mechanism can conveniently convey sand and stone upwards into the separating mechanism through the circulating feeding mechanism, can screen the sand and stone conveyed upwards through the separating mechanism, and can randomly change the screening size of the sand and stone in the sand and stone screening process through the separating mechanism, so that the operation of a forklift for feeding the sand and stone can be avoided, the sand and stone screening efficiency can be improved, the position of the feeding pipeline can be adjusted in a swinging mode through the adjusting mechanism, and the sand and stone can be conveniently conveyed upwards.

Description

Gravel screening device capable of controlling screen holes in building construction

Technical Field

The invention relates to a screening device, in particular to a gravel screening device capable of controlling screen holes in building construction.

Background

The building construction refers to production activities in the engineering construction implementation stage, is a construction process of various buildings, and also can be a process of changing various lines on a design drawing into a real object at a specified place, and comprises basic engineering construction, main structure construction, roofing engineering construction, decoration engineering construction and the like, wherein the construction operation place is called a building construction site or a construction site, and is also called a construction site.

In the prior art, for example, patent with publication number CN112620068A discloses a sand screening device, which includes a support, a driving assembly, a screening sleeve and a discharging assembly, wherein the support is of a frame structure and is provided with supporting rotating wheels, the driving assembly includes a motor and a driving shaft, the driving shaft is respectively connected with the motor and one or two supporting rotating wheels located at the front and the back of the same side of the support, the screening sleeve includes an inner cylinder, a rotating flange ring and at least one outer cylinder, the outer cylinder is sleeved outside the inner cylinder in a sleeved manner, the inner cylinder is a cylindrical grid structure, the outer cylinder is a cylindrical screen structure, the apertures of respective screens of the outer cylinders sleeved outside the inner cylinder are gradually reduced from inside to outside, the screen aperture of the innermost inner cylinder is smaller than the interval width of the inner cylinder grid, the screening sleeve is arranged on the supporting rotating wheels through a rotating flange ring, and the discharging assembly is formed by stacking discharging guiding devices.

This device has the following drawbacks:

first, this grit screening plant's area occupied is great, so be not suitable for the little building site in space and use, the screening size of gravel and sand can not be changed at will at the in-process that gravel and sand screened simultaneously.

The second point, because this grit screening plant when screening gravel and sand, mostly be in this equipment is poured gravel and sand to the current forklift equipment of workman's operation to screen gravel and sand through this equipment, the efficiency of this mode is lower.

Therefore, the development of a sand and stone screening device which can freely change the screening size of sand and stone and improve the screening efficiency and can control the screen holes in building construction is needed.

Disclosure of Invention

In order to overcome the defects that the sand and stone screening device occupies a large area and is not suitable for being used in a construction site with a small space, and the screening size of sand and stone cannot be changed randomly in the sand and stone screening process; when screening sand and stones, the sand and stone screening device has the defect of low efficiency because workers need to operate the conventional forklift equipment to pour sand and stones into the equipment for screening, and the technical problem of the invention is as follows: the utility model provides a but the grit screening plant of the steerable sieve mesh of building construction that can change the gravel and sand screening size at will, can improve screening efficiency.

The utility model provides a grit screening plant of steerable sieve mesh of construction, includes bottom plate, separating mechanism and circulation feeding mechanism, and separating mechanism is installed at the top of bottom plate, and one side that the top of bottom plate is close to separating mechanism is provided with circulation feeding mechanism, and circulation feeding mechanism is connected with separating mechanism.

Further, the separating mechanism comprises a fixing frame, a groove-shaped eccentric frame, a supporting frame, a first blanking pipeline, a blanking frame, a second blanking pipeline, a shunting pipeline and a screening component, wherein the fixing frame is connected to the top of the bottom plate, the groove-shaped eccentric frame is fixedly connected to the inner side of the upper portion of the fixing frame, the supporting frame is installed on one side, away from the fixing frame, of the top of the bottom plate, the first blanking pipeline is installed at the top of the supporting frame, the blanking frame is installed at the top of the first blanking pipeline, the second blanking pipeline is arranged on the side wall of the blanking frame, the shunting pipeline is installed at the bottom of the second blanking pipeline, and the screening component is arranged between the blanking frame and the upper portion of the second blanking pipeline.

Further, the screening part comprises a first screening screen plate, a threaded rod, a motor base, a servo motor, a threaded block, a second screening screen plate, a limiting block, a guide rod and a sliding block, the first screening screen plate is connected to the upper part of the second blanking pipeline, the threaded rod is rotatably arranged on the upper part of the side wall of the first screening screen plate, the motor base is arranged on the side wall of the first screening screen plate on the upper side of the threaded rod, the servo motor is arranged in the motor base, the lower end of an output shaft of the servo motor is fixedly connected with the upper end of the threaded rod through a coupler, the threaded block is arranged on the upper side of the threaded rod and is arranged in a sliding mode with the first screening screen plate, the second screening screen plate is arranged in the threaded block on the right side of the first screening screen plate and is matched with the blanking frame in a sliding mode, the limiting block is arranged on the lower part of the first screening screen plate, the guide rod is arranged between the limiting block and the first screening screen plate, the guide arm slidingtype is equipped with the sliding block, and the sliding block sets up for slidingtype with first screening otter board, and the right part and the second screening otter board rigid coupling of sliding block.

Further, the circulating feeding mechanism comprises a first support rod, a second support rod, a hollow frame, a third support rod, a mounting frame, a discharging groove, a first speed reducing motor, a first gear, a first rotating shaft, a second gear, a shaft sleeve, a first bearing seat, a second bearing seat, a connecting frame, a first bevel gear and a feeding part, wherein the number of the first support rods is two, the two first support rods are fixedly connected to one side, close to the mounting frame, of the top of the bottom plate, the top of the bottom plate at the two sides of the supporting frame is provided with the second support rod, the hollow frame is fixedly connected between the upper ends of the two second support rods, the top of the hollow frame is provided with the third support rod, the mounting frame is connected between the two first support rods and the upper part of the third support rod, the discharging groove is arranged at the bottom of the mounting frame, the top of the mounting frame is provided with the first speed reducing motor through bolts, the output shaft of the first speed reducing motor is provided with the first gear, the first rotating shaft is arranged on the mounting frame at the lower side of the first gear through a bearing, the second gear is installed in the first pivot of first gear downside, the second gear meshes with first gear mutually, the both sides of first pivot are all overlapped and are equipped with the axle sleeve, first bearing is installed to the lateral wall of axle sleeve, two first bearing all inlay and locate the mounting bracket both sides, one side that the lateral wall of axle sleeve is close to first bearing is provided with the second bearing, two second bearing are located the inboard of two first bearing, install the link between the lateral wall of two second bearing, first bevel gear is installed to the inboard first pivot of link, the link of first bevel gear downside has inlayed the material loading part, material loading part and first bevel gear cooperation.

Further explaining, the feeding part comprises a feeding pipeline, a discharging pipeline, a spiral feeding frame, a first baffle, a second baffle and a second bevel gear, the feeding pipeline is embedded in a connecting frame on the lower side of the first bevel gear, the feeding pipeline on the lower side of the connecting frame is embedded with the discharging pipeline, a feeding hole is formed in the lower portion of the feeding pipeline, the spiral feeding frame is installed between the upper side wall and the lower side wall in the feeding pipeline through a bearing, the first baffle is installed in a spiral feeding frame rotating shaft on the lower side of the feeding hole, the second baffle is installed in a spiral feeding frame rotating shaft on the upper side of the discharging pipeline, the second bevel gear is installed at the upper end of a rotating shaft of the spiral feeding frame, and the second bevel gear is matched with the first bevel gear.

Further explaining, the device also comprises an adjusting mechanism, the adjusting mechanism comprises a sliding frame, a two-way motor, a third gear, a connecting plate, a second rotating shaft, a swinging frame, a fourth gear, a fifth gear, a fixed rod, a fixed block and a connecting block, two sliding chutes are formed on the side wall of the fixed frame at the lower side of the groove-shaped eccentric frame, a plurality of tooth sockets are formed on the side wall of the fixed frame between the two sliding chutes, the sliding frame is arranged between the two sliding chutes in a sliding manner, the two-way motor is arranged at the upper part of the sliding frame through bolts, the third gear is arranged on the output shaft at the two sides of the two-way motor, the two connecting plates are arranged on the side wall of the sliding frame at the lower side of the two-way motor, the second rotating shaft is arranged between the two connecting plates in a rotating manner, the swinging frame is fixedly connected at the two sides of the second rotating shaft, the fourth gear is arranged at the two ends of the second rotating shaft, the upper and lower adjacent third gears are meshed with the fourth gear, the fifth gear is arranged on the second rotating shaft between the two connecting plates, the fifth gear is matched with the tooth grooves, the lower portion of the swing frame is fixedly connected with fixing rods, the two sides of the feeding pipeline on the upper side of the feeding hole are fixedly connected with fixing blocks, connecting blocks are installed on the side walls of the fixing blocks, and the two connecting blocks are connected with the two fixing rods respectively.

The feeding frame is characterized by further comprising mounting blocks, a second speed reducing motor, a sealed pipeline, a third rotating shaft and a cleaning frame, wherein the two mounting blocks are mounted at the bottom in the hollow frame, the second speed reducing motor is arranged between the two mounting blocks, the side wall, far away from the second screening screen plate, of the feeding frame is provided with the sealed pipeline, the third rotating shaft is rotatably mounted between the two side walls in the sealed pipeline, one end of the third rotating shaft is fixedly connected with an output shaft of the second speed reducing motor through a coupler, the other end of the third rotating shaft penetrates through the feeding frame, and the cleaning frame is mounted at the other end of the third rotating shaft.

Further explaining, the lifting device also comprises a balancing weight, sliding grooves are formed in two sides of the top of the bottom plate, and the balancing weight is arranged in each sliding groove in a sliding mode.

The invention has the beneficial effects that:

1. according to the invention, the sand and the stone can be conveniently conveyed upwards into the separating mechanism through the circulating feeding mechanism, the sand and the stone conveyed upwards can be screened through the separating mechanism, and the screening size of the sand and the stone can be randomly changed in the process of screening the sand and the stone through the separating mechanism, so that the operation of a forklift for feeding the sand and the stone can be avoided, and the screening efficiency of the sand and the stone can be improved;

2. the position of the feeding pipeline can be adjusted in a swinging mode through the adjusting mechanism, so that the sand and the stones can be conveniently conveyed upwards;

3. through the continuous rotation of the cleaning frame, sand and stones clamped on the first screening net plate and the second screening net plate can be discharged, so that the blockage of meshes of the first screening net plate and the second screening net plate and the obstruction to sand and stone screening can be avoided;

4. the counterweight block can avoid excessive sand and stones in the feeding pipeline, so that the invention swings and deviates leftwards and causes inconvenience for screening the sand and stones.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic perspective view of the separating mechanism of the present invention.

Fig. 3 is a schematic perspective view of the support frame of the present invention.

Fig. 4 is a schematic perspective view of the blanking frame of the present invention.

Fig. 5 is a schematic perspective view of the circular feeding mechanism of the present invention.

Fig. 6 is a schematic perspective view of the feeding pipe of the present invention.

Fig. 7 is a schematic perspective view of the discharge duct of the present invention.

Fig. 8 is a schematic perspective view of the spiral feeding frame of the present invention.

Fig. 9 is a schematic perspective view of the adjusting mechanism of the present invention.

FIG. 10 is a perspective view of the swing frame of the present invention.

Fig. 11 is a schematic perspective view of the cleaning frame of the present invention.

In the above drawings: 1: bottom plate, 2: separation mechanism, 201: mount, 202: trough eccentric, 205: support, 206: first blanking line, 207: blanking frame, 208: second blanking pipe, 2081: diversion conduit, 209: first screen panel, 210: threaded rod, 211: motor mount, 212: servo motor, 213: thread block, 214: second screen panel, 215: a limiting block, 216: guide rod, 217: sliding block, 3: circulation feeding mechanism, 301: first strut, 3011: second strut, 3012: hollow frame, 302: third strut, 303: mounting frame, 304: feed chute, 305: first reduction motor, 306: first gear, 307: first rotating shaft, 308: second gear, 309: shaft sleeve, 310: first bearing housing, 311: second bearing housing, 312: connecting frame, 313: first bevel gear, 314: feeding pipeline, 315: discharge pipe, 316: feed inlet, 317: spiral feeding frame, 318: first baffle, 319: second baffle, 320: second bevel gear, 4: adjustment mechanism, 401: chute, 402: gullet, 403: carriage, 404: bidirectional motor, 405: third gear, 406: connection plate, 407: second rotating shaft, 408: swing frame, 409: fourth gear, 410: fifth gear, 411: fixing rod, 412: fixed block, 413: connecting block, 5: mounting block, 6: second reduction motor, 7: sealed pipe, 8: third rotating shaft, 9: cleaning frame, 10: sliding groove, 11: and a balancing weight.

Detailed Description

The present invention now will be described more fully hereinafter with reference to the accompanying drawings, in which presently preferred embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for completeness and fully convey the scope of the invention to the skilled person.

Example 1

Referring to fig. 1, the gravel screening device capable of controlling the sieve pores in building construction comprises a bottom plate 1, a separating mechanism 2 and a circulating feeding mechanism 3, wherein the separating mechanism 2 is installed at the top of the bottom plate 1, the circulating feeding mechanism 3 is arranged at the top of the bottom plate 1 on the left side of the separating mechanism 2, and the circulating feeding mechanism 3 is connected with the separating mechanism 2.

When screening the sand and the stone, a user places the sand and stone screening machine at a proper position on the right side of a sand and stone pile, then the user enables the circular feeding mechanism 3 to swing leftwards, the lower portion of the circular feeding mechanism 3 is inserted into the sand and stone pile, then the user starts the circular feeding mechanism 3 to work, the circular feeding mechanism 3 can convey the sand and the stone upwards into the separating mechanism 2, the separating mechanism 2 can screen the sand and the stone, in the process that the separating mechanism 2 screens the sand and the stone, the user can freely change the screening size of the sand and the stone through the separating mechanism 2, the screened sand and the stone fall downwards onto the ground, and after the sand and the stone are screened completely, the user closes the circular feeding mechanism 3 and removes the sand and stone screening machine.

Example 2

Referring to fig. 2 to 4, based on embodiment 1, the separating mechanism 2 includes a fixed frame 201, a groove-shaped eccentric frame 202, a supporting frame 205, a first blanking pipe 206, a blanking frame 207, a second blanking pipe 208, a diversion pipe 2081 and a screening component, the fixed frame 201 is connected to the left side of the top of the bottom plate 1, the groove-shaped eccentric frame 202 is fixedly connected to the inner side of the upper portion of the fixed frame 201, the supporting frame 205 is installed on the top of the bottom plate 1 on the right side of the fixed frame 201, the first blanking pipe 206 is installed on the top of the supporting frame 205, the blanking frame 207 is installed on the top of the first blanking pipe 206, the second blanking pipe 208 is installed on the left side wall of the blanking frame 207, the diversion pipe 2081 is installed on the bottom of the second blanking pipe 208, and the screening component is installed between the blanking frame 207 and the upper portion of the second blanking pipe 208.

When the sand and stone are needed to be screened, the user repeats the above-mentioned process to make the sand and stone upwards conveyed and fall in the groove-shaped eccentric frame 202, the sand and stone in the groove-shaped eccentric frame 202 falls down to the right, the screening component can screen sands and stones sliding downwards to the right, the screened smaller sands and stones fall downwards into the first blanking pipe 206 through the screening component, the sands and stones in the first blanking pipe 206 fall downwards to the ground, the screened larger sands and stones fall downwards into the second blanking pipe 208, the sands and stones in the second blanking pipe 208 fall downwards to the ground through the diversion pipe 2081, thus, the screened sand and stone can be prevented from falling on the bottom plate 1 to obstruct the subsequent movement of the invention, when screening the gravel and sand, the user can adjust the screening part, so that the screening size of the gravel and sand can be changed at will, and screening of the gravel and sand of different specifications can be conveniently finished.

Referring to fig. 4, the screening part includes a first screening mesh plate 209, a threaded rod 210, a motor base 211, a servo motor 212, a threaded block 213, a second screening mesh plate 214, a limit block 215, a guide rod 216 and a slide block 217, the first screening mesh plate 209 is connected to the upper portion of the second blanking pipeline 208, the threaded rod 210 is rotatably installed on the upper portion of the left side wall of the first screening mesh plate 209, the motor base 211 is installed on the left side wall of the first screening mesh plate 209 on the upper side of the threaded rod 210, the servo motor 212 is installed in the motor base 211, the lower end of the output shaft of the servo motor 212 is fixedly connected to the upper end of the threaded rod 210 through a coupler, the threaded block 213 is installed on the upper side of the threaded rod 210 through a threaded connection mode, the threaded block 213 and the first screening mesh plate 209 are arranged in a sliding mode, the second screening mesh plate 214 is installed in the threaded block 213 on the right side of the first screening mesh plate 209, the second screening mesh plate 214 is in a sliding mode with the blanking rack 207, the lower part of the first screening net plate 209 is provided with a limiting block 215, a guide rod 216 is arranged between the limiting block 215 and the first screening net plate 209, the guide rod 216 is provided with a sliding block 217 in a sliding manner, the sliding block 217 and the first screening net plate 209 are arranged in a sliding manner, and the right part of the sliding block 217 is fixedly connected with the second screening net plate 214.

When small sand and stones need to be screened, a user starts the servo motor 212 to enable the threaded rod 210 to rotate clockwise, the threaded rod 210 rotates clockwise to enable the threaded block 213 to move forwards and downwards, the threaded block 213 moves forwards and downwards to enable the second screening screen plate 214 to move forwards and downwards, the second screening screen plate 214 can be guided to move forwards and downwards through the matching of the guide rod 216 and the sliding block 217, when the second screening screen plate 214 moves forwards and downwards to a proper position, the user closes the servo motor 212, meshes of the first screening screen plate 209 and the second screening screen plate 214 are staggered, when large sand and stones need to be screened, the user starts the servo motor 212 to enable the threaded rod 210 to rotate anticlockwise, so that the second screening screen plate 214 moves backwards and upwards, when the second screening screen plate 214 moves backwards and upwards to a proper position, the user closes the servo motor 212, so that the size of the sand and stones can be conveniently adjusted, because first screening otter board 209 and second screening otter board 214 are the slope setting of right side, so the gravel and sand in the flute profile eccentric orks 202 below to the right side drops, with first screening otter board 209 and the cooperation of second screening otter board 214, can conveniently filter gravel and sand, through the regulation to first screening otter board 209 and second screening otter board 214, so can conveniently sieve out multiple specification with gravel and sand, and then can be convenient for to the big or small gravel and sand demand of difference.

Example 3

Referring to fig. 5 to 8, based on embodiment 2, the circular feeding mechanism 3 includes a first support rod 301, a second support rod 3011, a hollow frame 3012, a third support rod 302, a mounting frame 303, a blanking slot 304, a first reduction motor 305, a first gear 306, a first rotating shaft 307, a second gear 308, a shaft sleeve 309, a first bearing seat 310, a second bearing seat 311, a connecting frame 312, a first bevel gear 313 and a feeding component, the first support rod 301 is provided with two, the two first support rods 301 are fixedly connected to the front and rear sides of the top of the base plate 1, the front and rear first support rods 301 are located between the fixing frame 201 and the support frame 205, the second support rods 3011 are mounted on the top of the base plate 1 on the front and rear sides of the support frame 205, the hollow frame 3012 is fixedly connected between the upper ends of the front and rear two second support rods 3011, the third support rod 302 is mounted on the top of the hollow frame 3012, the mounting frame 303 is connected between the front and rear two first support rods 301 and the upper portion of the third support rod 302, the bottom of the mounting frame 303 is provided with a blanking groove 304, the blanking groove 304 is positioned on the upper side of the groove-shaped eccentric frame 202, the top of the mounting frame 303 is provided with a first reducing motor 305 through bolts, the rear end of an output shaft of the first reducing motor 305 is provided with a first gear 306, the mounting frame 303 on the lower side of the first gear 306 is provided with a first rotating shaft 307 through a bearing, the rear end of the first rotating shaft 307 is provided with a second gear 308, the second gear 308 is meshed with the first gear 306, the front side and the rear side of the first rotating shaft 307 are respectively sleeved with a shaft sleeve 309, the outer side wall of the shaft sleeve 309 is provided with a first bearing seat 310, the front first bearing seat 310 and the rear first bearing seat 310 are respectively embedded on the front side and the rear side of the mounting frame 303, the outer side wall of the shaft sleeve 309 is provided with a second bearing seat 311, the front second bearing seat 311 and the rear second bearing seat 311 are positioned on the inner sides of the front and rear first bearing seat 310, a connecting frame 312 is arranged between the outer side walls of the front and rear second bearing seat 311, the first rotating shaft 307 at the inner side of the connecting frame 312 is provided with a first bevel gear 313, and a feeding part is embedded in the connecting frame 312 at the lower side of the first bevel gear 313 and is matched with the first bevel gear 313.

When the sand and stone are required to be screened, a user puts the sand and stone screening machine on the right side of a sand and stone pile, swings the feeding part leftwards to enable the lower part of the feeding part to be positioned in the sand and stone push, then the user starts the first speed reducing motor 305 to enable the first gear 306 to rotate clockwise, the first gear 306 rotates clockwise to enable the second gear 308 to rotate anticlockwise, the first gear 306 is smaller than the second gear 308, the transmission force of the second gear 308 can be increased through the matching of the first gear 306 and the second gear 308, the second gear 308 rotates anticlockwise to enable the first rotating shaft 307 to rotate anticlockwise, the first rotating shaft 307 rotates anticlockwise to enable the first bevel gear 313 to rotate anticlockwise, the first anticlockwise rotation can enable the feeding part to work, the feeding part can convey the sand and fall into the groove-shaped eccentric frame 202 upwards, the sand and stone can be screened through the matching of the first screening screen plate 209 and the second screening plate, when the screening of the gravel and sand is completed, the user turns off the first reduction motor 305.

Referring to fig. 6 to 8, the feeding part includes a feeding pipe 314, a discharging pipe 315, a spiral feeding frame 317, a first baffle 318, a second baffle 319 and a second bevel gear 320, the feeding pipe 314 is embedded at the bottom of the connecting frame 312, the discharging pipe 315 is embedded on the right side wall of the feeding pipe 314 at the lower side of the connecting frame 312, a feeding hole 316 is opened at the lower part of the feeding pipe 314, the spiral feeding frame 317 is installed between the upper and lower side walls in the feeding pipe 314 through a bearing, the first baffle 318 is installed on the rotating shaft of the spiral feeding frame 317 at the lower side of the feeding hole 316, the second baffle 319 is installed on the rotating shaft of the spiral feeding frame 317 at the upper side of the discharging pipe 315, the second bevel gear 320 is installed at the upper end of the rotating shaft of the spiral feeding frame 317, and the second bevel gear 320 is matched with the first bevel gear 313.

When the sand and stone are required to be screened, a user places the sand and stone screening machine on the right side of a sand and stone pile, the user swings the feeding pipeline 314 leftwards, the first rotating shaft 307 is driven to rotate by preventing the feeding pipeline 314 from swinging leftwards through the shaft sleeves 309 on the front side and the rear side, the feeding pipeline 314 swings leftwards, the discharging pipeline 315 swings rightwards and downwards to be positioned on the upper side of the discharging groove 304, after the feeding pipeline 314 swings leftwards to a proper position, the user inserts the lower part of the feeding pipeline 314 into the sand and stone pile, the sand and stone are filled into the feeding pipeline 314 through the feeding hole 316, the feeding pipeline 314 is inclined obliquely from low left to high right, the sand and stone entering the feeding pipeline 314 can be prevented through the first baffle 318 and fall into a bearing on the lower side of the feeding pipeline 314, then the user repeats the rotation of the first bevel gear 313 along with the counterclockwise, the second bevel gear 320 rotates clockwise, the second bevel gear 320 rotates clockwise to enable the spiral feeding frame 317 to rotate clockwise, the spiral feeding frame 317 rotates clockwise to convey sand and stone at the lower part of the feeding pipeline 314 upwards, due to the fact that the outer side wall of the spiral feeding frame 317 is in contact fit with the inner side wall of the feeding pipeline 314, sand and stone on the upper side of the feeding pipeline 314 can be prevented from falling downwards, the sand and stone conveyed upwards can be prevented through the second baffle 319, the discharging pipeline 315 is arranged in a left-high-right-low inclined mode, the sand and stone in the discharging pipeline 315 slides rightwards to fall in the discharging groove 304, the sand and stone in the discharging groove 304 slides rightwards to fall in the groove-shaped eccentric frame 202, upward conveying of the sand and stone can be completed, after all sand and stone are screened, a user closes the first speed reducing motor 305, the feeding pipeline 314 swings to reset, and the discharging pipeline 315 resets accordingly.

Example 4

Referring to fig. 5, 9 and 10, based on embodiment 3, the present disclosure further includes an adjusting mechanism 4, where the adjusting mechanism 4 includes a sliding frame 403, a two-way motor 404, a third gear 405, a connecting plate 406, a second rotating shaft 407, a swing frame 408, a fourth gear 409, a fifth gear 410, a fixing rod 411, a fixing block 412 and a connecting block 413, the right side wall of the fixing frame 201 at the lower side of the groove-shaped eccentric frame 202 is provided with two sliding grooves 401, the two sliding grooves 401 are symmetrically arranged in the front and back direction, the right side wall of the fixing frame 201 between the front and back sliding grooves 401 is provided with at least three tooth grooves 402, the sliding frame 403 is arranged between the front and back sliding grooves 401, the two-way motor 404 is installed at the top of the sliding frame 403 through bolts, the third gear 405 is installed on output shafts at the front and back sides of the two-way motor 404, the right side wall of the sliding frame 403 at the lower side of the two-way motor 404 is provided with two connecting plates 406, the two connecting plates 406 are symmetrically arranged in the front and back direction, a second rotating shaft 407 is rotatably mounted between the front connecting plate 406 and the rear connecting plate 406, swing frames 408 are fixedly connected to the front side and the rear side of the second rotating shaft 407, fourth gears 409 are mounted at the front end and the rear end of the second rotating shaft 407, upper and lower adjacent third gears 405 are meshed with the fourth gears 409, a fifth gear 410 is mounted on the second rotating shaft 407 between the front connecting plate 406 and the rear connecting plate 406, the fifth gear 410 is matched with the tooth space 402, fixing rods 411 are fixedly connected to the lower portion of the swing frames 408, fixing blocks 412 are fixedly connected to the front side wall and the rear side wall of the feeding pipe 314 on the upper side of the feeding port 316, a connecting block 413 is mounted on the right side wall of the fixing block 412, and the front connecting block 413 and the rear connecting block 413 are respectively connected with the front fixing rods 411 and the rear fixing rods 411.

When screening the sand and stone, the user repeats the above-mentioned process of placing the present invention at a proper position on the right side of the sand and stone pile, and then the user starts the two-way motor 404 to rotate the third gear 405 at the front and rear sides counterclockwise, the third gear 405 rotates counterclockwise to rotate the fourth gear 409 clockwise, the fourth gear 409 rotates clockwise to rotate the fifth gear 410 clockwise through the second rotating shaft 407, the fifth gear 410 is engaged with the tooth space 402 through the fifth gear 410, so the fifth gear 410 moves downward, the fifth gear 410 moves downward to move the swing frame 408 downward through the second rotating shaft 407, the swing frame 408 moves downward and simultaneously swings the feeding pipe 314 leftward, when the feeding pipe 314 swings to a proper position leftward, the user turns off the two-way motor 404, when screening all the sand and stone is finished, the user starts the two-way motor 404 to rotate the third gear 405 clockwise, and the fifth gear 410 rotates counterclockwise, the fifth gear 410 rotates counterclockwise to be engaged with the tooth slot 402, the fifth gear 410 moves upward, and when the fifth gear 410 moves upward and resets, the bi-directional motor 404 is turned off, and the swing frame 408 and the feeding pipe 314 reset accordingly.

Referring to fig. 2, 5 and 11, the hollow frame 3012 further includes two mounting blocks 5 installed at the bottom, the two mounting blocks 5 are symmetrically arranged in front and back, the second decelerating motor 6 is installed between the two mounting blocks 5, the sealed pipeline 7 is installed at the upper portion of the right side wall of the blanking frame 207, the third rotating shaft 8 is installed between the left side wall and the right side wall of the sealed pipeline 7 in a rotating manner, the right end of the third rotating shaft 8 is fixedly connected to the left end of the output shaft of the second decelerating motor 6 through a coupling, the left end of the third rotating shaft 8 penetrates through the blanking frame 207, and the cleaning frame 9 is installed at the left end of the third rotating shaft 8.

When the gravel and sand needs to be screened, the user repeatedly conveys the gravel and sand into the groove-shaped eccentric frame 202, meanwhile, the user starts the second speed reducing motor 6 to enable the third rotating shaft 8 to rotate, the third rotating shaft 8 rotates to enable the cleaning frame 9 to rotate, the cleaning frame 9 rotates to enable the gravel and sand clamped on meshes of the first screening net plate 209 and the second screening net plate 214 to be discharged, therefore, the meshes of the first screening net plate 209 and the second screening net plate 214 can be prevented from being blocked, the screening of the gravel and sand is hindered, and after the screening of the gravel and sand is completed, the user can close the second speed reducing motor 6.

Referring to fig. 1 and 2, the portable electronic device further includes a weight block 11, sliding grooves 10 are formed in the front and rear portions of the right side of the top of the bottom plate 1, and the weight block 11 is slidably disposed in the sliding grooves 10.

The counterweight block 11 can prevent the sand and stone in the feeding pipeline 314 from being too much when the sand and stone are screened, so that the sand and stone screening device swings and deviates leftwards and causes inconvenience for sand and stone screening.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a grit screening plant of steerable sieve mesh of construction, includes bottom plate (1), its characterized in that still includes separating mechanism (2) and circulation feeding mechanism (3), and separating mechanism (2) are installed at the top of bottom plate (1), and one side that the top of bottom plate (1) is close to separating mechanism (2) is provided with circulation feeding mechanism (3), and circulation feeding mechanism (3) are connected with separating mechanism (2).

2. The gravel screening device with controllable sieve pores for building construction according to claim 1, wherein the separating mechanism (2) comprises a fixed frame (201), a groove-shaped eccentric frame (202), a supporting frame (205), a first blanking pipeline (206), a blanking frame (207), a second blanking pipeline (208), a flow dividing pipeline (2081) and a screening part, the fixed frame (201) is connected to the top of the bottom plate (1), the groove-shaped eccentric frame (202) is fixedly connected to the inner side of the upper part of the fixed frame (201), the supporting frame (205) is installed on one side, away from the fixed frame (201), of the top of the bottom plate (1), the first blanking pipeline (206) is installed on the top of the supporting frame (205), the blanking frame (207) is installed on the top of the first blanking pipeline (206), the second blanking pipeline (208) is arranged on the side wall of the blanking frame (207), the flow dividing pipeline (2081) is installed at the bottom of the second blanking pipeline (208), a screening component is arranged between the blanking frame (207) and the upper part of the second blanking pipeline (208).

3. The sand screening device with the controllable screen holes for building construction according to claim 2, wherein the screening component comprises a first screening screen plate (209), a threaded rod (210), a motor base (211), a servo motor (212), a threaded block (213), a second screening screen plate (214), a limiting block (215), a guide rod (216) and a sliding block (217), the first screening screen plate (209) is connected to the upper portion of the second blanking pipeline (208), the threaded rod (210) is rotatably installed on the upper portion of the side wall of the first screening screen plate (209), the motor base (211) is installed on the side wall of the first screening screen plate (209) on the upper side of the threaded rod (210), the servo motor (212) is installed in the motor base (211), the lower end of an output shaft of the servo motor (212) is fixedly connected with the upper end of the threaded rod (210) through a coupler, and the threaded block (213) is arranged on the upper side of the threaded rod (210), screw thread piece (213) and first screening otter board (209) are the slidingtype setting, install second screening otter board (214) in screw thread piece (213) on first screening otter board (209) right side, second screening otter board (214) and unloading frame (207) sliding type cooperation, stopper (215) are installed to the lower part of first screening otter board (209), be provided with between stopper (215) and first screening otter board (209) guide arm (216), guide arm (216) sliding type is equipped with sliding block (217), sliding block (217) and first screening otter board (209) are the slidingtype setting, the right part and second screening otter board (214) rigid coupling of sliding block (217).

4. The gravel screening device with controllable sieve holes for building construction according to claim 2, wherein the circular feeding mechanism (3) comprises a first support rod (301), a second support rod (3011), a hollow frame (3012), a third support rod (302), a mounting frame (303), a blanking slot (304), a first speed reduction motor (305), a first gear (306), a first rotating shaft (307), a second gear (308), a shaft sleeve (309), a first bearing seat (310), a second bearing seat (311), a connecting frame (312), a first bevel gear (313) and a feeding part, the number of the first support rods (301) is two, the two first support rods (301) are fixedly connected to one side of the top of the bottom plate (1) close to the fixing frame (201), the tops of the bottom plates (1) on two sides of the support frame (205) are respectively provided with the second support rod (3011), the hollow frame (3012) is fixedly connected between the upper ends of the two second support rods (3011), the hollow frame (3012) is provided with a third supporting rod (302) at the top, a mounting rack (303) is connected between the upper parts of the two first supporting rods (301) and the third supporting rod (302), a blanking groove (304) is arranged at the bottom of the mounting rack (303), a first speed reducing motor (305) is arranged at the top of the mounting rack (303) through a bolt, an output shaft of the first speed reducing motor (305) is provided with a first gear (306), a first rotating shaft (307) is arranged on the mounting rack (303) at the lower side of the first gear (306) through a bearing, a second gear (308) is arranged on the first rotating shaft (307) at the lower side of the first gear (306), the second gear (308) is meshed with the first gear (306), shaft sleeves (309) are sleeved on the two sides of the first rotating shaft (307), a first bearing seat (310) is arranged on the outer side wall of the shaft sleeve (309), the two first bearing seats (310) are embedded on the two sides of the mounting rack (303), one side that the lateral wall of axle sleeve (309) is close to first bearing frame (310) is provided with second bearing frame (311), two second bearing frame (311) are located the inboard of two first bearing frame (310), install link (312) between the lateral wall of two second bearing frame (311), first bevel gear (313) are installed to inboard first pivot (307) of link (312), the link (312) of first bevel gear (313) downside has inlayed the material loading part, the material loading part cooperates with first bevel gear (313).

5. The gravel screening device with controllable sieve pores for building construction according to claim 4, wherein the feeding component comprises a feeding pipeline (314), a discharging pipeline (315), a spiral feeding frame (317), a first baffle plate (318), a second baffle plate (319) and a second bevel gear (320), the feeding pipeline (314) is embedded in the connecting frame (312) at the lower side of the first bevel gear (313), the discharging pipeline (315) is embedded in the feeding pipeline (314) at the lower side of the connecting frame (312), the feeding hole (316) is formed in the lower part of the feeding pipeline (314), the spiral feeding frame (317) is installed between the upper side wall and the lower side wall in the feeding pipeline (314) through a bearing, the first baffle plate (318) is installed on the rotating shaft of the spiral feeding frame (317) at the lower side of the feeding hole (316), the second baffle plate (319) is installed on the rotating shaft of the spiral feeding frame (317) at the upper side of the discharging pipeline (315), a second bevel gear (320) is installed at the upper end of a rotating shaft of the spiral feeding frame (317), and the second bevel gear (320) is matched with the first bevel gear (313).

6. The gravel screening device with controllable sieve pores for building construction according to claim 4, further comprising an adjusting mechanism (4), wherein the adjusting mechanism (4) comprises a sliding frame (403), a bidirectional motor (404), a third gear (405), a connecting plate (406), a second rotating shaft (407), a swinging frame (408), a fourth gear (409), a fifth gear (410), a fixed rod (411), a fixed block (412) and a connecting block (413), two sliding grooves (401) are formed in the side wall of the fixed frame (201) on the lower side of the groove-shaped eccentric frame (202), a plurality of tooth grooves (402) are formed in the side wall of the fixed frame (201) between the two sliding grooves (401), the sliding frame (403) is arranged between the two sliding grooves (401) in a sliding manner, the bidirectional motor (404) is installed on the upper portion of the sliding frame (403) through bolts, the third gear (405) is installed on output shafts on two sides of the bidirectional motor (404), two connecting plates (406) are installed on the side wall of a sliding frame (403) on the lower side of a two-way motor (404), a second rotating shaft (407) is installed between the two connecting plates (406) in a rotating mode, swing frames (408) are fixedly connected to the two sides of the second rotating shaft (407), fourth gears (409) are installed at the two ends of the second rotating shaft (407), upper and lower adjacent third gears (405) are meshed with the fourth gears (409), fifth gears (410) are installed on the second rotating shaft (407) between the two connecting plates (406), the fifth gears (410) are matched with tooth grooves (402), fixing rods (411) are fixedly connected to the lower portion of the swing frames (408), fixing blocks (412) are fixedly connected to the two sides of a feeding pipeline (314) on the upper side of a feeding port (316), connecting blocks (413) are installed on the side wall of the fixing blocks (412), and the two connecting blocks (413) are respectively connected with the two fixing rods (411).

7. The gravel screening device with the controllable sieve pores for building construction according to claim 6, further comprising mounting blocks (5), a second speed reducing motor (6), a sealed pipeline (7), a third rotating shaft (8) and a cleaning frame (9), wherein the two mounting blocks (5) are mounted at the bottom in the hollow frame (3012), the second speed reducing motor (6) is arranged between the two mounting blocks (5), the sealed pipeline (7) is mounted on the side wall, far away from the second screening mesh plate (214), of the blanking frame (207), the third rotating shaft (8) is rotatably mounted between the two inner side walls of the sealed pipeline (7), one end of the third rotating shaft (8) is fixedly connected with an output shaft of the second speed reducing motor (6) through a coupler, the other end of the third rotating shaft (8) penetrates through the blanking frame (207), and the cleaning frame (9) is mounted at the other end of the third rotating shaft (8).

8. A gravel screening device with controllable sieve pores for building construction according to claim 7, which further comprises a balancing weight (11), wherein sliding grooves (10) are formed in both sides of the top of the bottom plate (1), and the balancing weight (11) is arranged in the sliding grooves (10) in a sliding manner.