CN215235734U

CN215235734U - Sand screening equipment for building construction

Info

Publication number: CN215235734U
Application number: CN202120773254.2U
Authority: CN
Inventors: 刘平
Original assignee: China Construction Second Engineering Bureau Co Ltd
Current assignee: China Construction Second Engineering Bureau Co Ltd
Priority date: 2021-04-15
Filing date: 2021-04-15
Publication date: 2021-12-21
Anticipated expiration: 2031-04-15

Abstract

The utility model discloses a sieve husky equipment for construction, it includes the box, the inside drive mechanism that is equipped with of box, drive mechanism extends to the box outside, drive mechanism includes the motor, the fixed bottom half that locates of motor, motor output end fixedly connected with bull stick, the bull stick is located the bottom half and is extended to inside the box, the bull stick top is connected through the bearing with box top inner wall, the bull stick external fixation is equipped with two first belt pulleys, the beneficial effects of the utility model are that: its is rational in infrastructure, the configuration montant, the montant rotates and drives reciprocal lead screw and rotate, and reciprocal lead screw rotates and drives the bearing frame and removes, and the bearing frame removes and drives the push pedal and removes, and the reciprocating motion that lasts through reciprocal lead screw realizes beating the continuous extrusion of second baffle, makes the shake of second baffle, can prevent the jam of mesh like this, promotes sieve husky efficiency simultaneously.

Description

Sand screening equipment for building construction

Technical Field

The utility model belongs to the technical field of building engineering, a sieve husky equipment for construction is related to.

Background

The sand is an essential basic raw material in the field of construction, various impurities such as broken stones, garbage and the like exist in the sand, sand grains in the sand are also classified into different grades, the purposes are different, and the required sand is different in grain size grade. Therefore, the sand needs to be screened before it can be used.

During construction, the requirement on the size of sand is strict, but most of sands need to be pushed to a filter screen manually when being screened. Meanwhile, when different sizes are needed, the filter screen needs to be replaced manually, the labor intensity of workers is increased, meshes of the sand screening filter screen are easy to block, and the sand screening efficiency is reduced.

Therefore, a sand screening device for building construction needs to be designed to solve the technical problems in the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the partial technical problem that exists among the prior art to a certain extent at least, the sand screening equipment for construction that provides, its is rational in infrastructure, the configuration montant, the montant rotates and drives reciprocal lead screw and rotates, reciprocal lead screw rotates and drives the bearing frame and remove, the bearing frame removes and drives the push pedal and removes, it realizes beating to the continuous extrusion of second baffle to continue to stop reciprocating motion through reciprocal lead screw, make the shake of second baffle, can prevent the jam of mesh like this, promote sand screening efficiency simultaneously.

In order to solve the technical problem, the utility model provides a sand screening device for building construction, which comprises a box body, wherein a transmission mechanism is arranged inside the box body, and the transmission mechanism extends to the outside of the box body; the transmission mechanism comprises a motor, the motor is fixedly arranged at the bottom of the box body, a rotating rod is fixedly connected with the output end of the motor, the rotating rod is arranged at the bottom of the box body and extends to the inside of the box body, the top of the rotating rod is connected with the inner wall of the top of the box body through a bearing, two first belt pulleys are fixedly arranged on the outer portion of the rotating rod, two vibration assemblies are arranged inside the box body, the vibration assemblies are arranged on one sides of the first belt pulleys, screening assemblies are arranged inside the box body and between the two vibration assemblies, screening assemblies are arranged inside the box body and are arranged at the bottom of the screening assemblies, and heat dissipation assemblies are arranged outside the motor.

As a preferred embodiment, the heat dissipation assembly comprises a protective shell, the protective shell is fixedly arranged at the bottom of the box body and fixedly connected with the bottom of the box body, the protective shell is fixedly arranged outside the motor, and a plurality of heat dissipation holes are formed in the bottom of the protective shell.

As preferred embodiment, the vibrations subassembly includes the montant, the montant top passes through the bearing with box top inner wall and is connected, the montant sets up in bull stick one side, the montant external fixation is provided with the second belt pulley, be equipped with the belt between second belt pulley and the first belt pulley, first belt pulley passes through the belt with the second belt pulley and is connected, the reciprocal lead screw of montant bottom fixedly connected with, reciprocal lead screw outside is provided with the bearing frame, the bearing frame passes through ball nut pair with reciprocal lead screw and is connected, the first connection board of bearing frame both sides fixedly connected with, one side fixedly connected with second connection board of first connection board, second connection board bottom fixedly connected with push pedal.

As a preferred embodiment, the screening assembly comprises a frame body, the frame body is arranged in a box body, a first sleeve is arranged outside a rotating rod, the first sleeve is connected with the rotating rod through a bearing, the frame body is fixedly arranged outside the first sleeve, a second sleeve is arranged outside the rotating rod, a first baffle is fixedly arranged outside the second sleeve, the second sleeve is connected with the rotating rod through a bearing, a second baffle is fixedly connected with the bottom of the frame body, a movable hinged support is fixedly connected with one side of the second baffle, a third baffle is fixedly connected with one side of the movable hinged support, a baffle block is fixedly connected with one side of the first baffle, the bottom of the third baffle is in contact with the top of the baffle block, the first baffle is in a net shape, the third baffle is in a net shape, a first chute is arranged on one side of the box body, and a first sliding block is embedded in the first chute, the bottom of the first sliding block is fixedly connected with a first telescopic rod, a first spring is fixedly arranged outside the first telescopic rod, and the lateral portion of the first sliding block is fixedly connected with one side of the second baffle.

As a preferred embodiment, the screening assembly comprises a third sleeve, the third sleeve is arranged outside the rotating rod and connected with the rotating rod through a one-way bearing, a first bevel gear is fixedly arranged outside the third sleeve, and the screening assembly further comprises two striking units, and the striking units are respectively arranged on two sides of the first bevel gear.

As a preferred embodiment, the striking unit comprises a second bevel gear, the second bevel gear is arranged at the bottom of a first bevel gear, the second bevel gear is meshed with the bevel gear, one side of the second bevel gear is fixedly connected with a cross rod, one side of the cross rod is connected with the inner wall of one side of a box body through a bearing, a striking plate is fixedly arranged outside the cross rod, a fourth sleeve is fixedly arranged outside a rotating rod, the fourth sleeve is connected with the rotating rod through a bearing, a baffle plate is fixedly arranged outside the fourth sleeve, inclined plates are fixedly connected to two sides of the baffle plate, the baffle plate is net-shaped, the inclined plates are net-shaped, vertical plates are fixedly connected to the bottoms of the inclined plates, a sliding groove II is formed in one side of the box body, a sliding block II is embedded in the sliding groove II, a telescopic rod II is fixedly connected to the bottoms of the sliding block II, and a second spring is arranged outside the telescopic rod II, and the side part of the second sliding block is fixedly connected with one side of the vertical plate.

As the preferred embodiment, box top both sides are provided with into husky fill, it runs through the box top and extends to inside the framework to advance husky fill bottom, box one side inner wall fixedly connected with backup pad, the backup pad passes through the bearing with the montant and is connected, second connection board bottom runs through the backup pad top and extends the bottom of backup pad, the fixed fender frame that is provided with in box inside, keep off the frame and fix and set up in first bevel gear outside, keep off the frame and pass through the bearing with the bull stick and be connected, keep off the frame and pass through the bearing with the horizontal pole and be connected.

As a preferred embodiment, two first L-shaped plates are fixedly arranged inside the frame body, the side portion of each first L-shaped plate is fixedly connected with one side of the rotating rod, the bottom of each first L-shaped plate is fixedly connected with a connecting plate, the bottom of each connecting plate is fixedly connected with a brush, the bottom of each brush is in contact with the top of the first baffle, a second L-shaped plate is fixedly connected inside each two sides of the frame body, and the bottom of each second L-shaped plate is fixedly connected with the top of the first baffle.

As a preferred embodiment, the sand outlet is formed in two sides of the box body, the sand outlet is formed in the bottom of the inclined plate, transverse plates are fixedly connected to two sides of the box body, a containing box is arranged at the top of each transverse plate, a sand inlet is formed in one side of the containing box, the sand outlet is matched with the sand inlet, a support is fixedly connected to the bottom of each transverse plate, and discharge ports are formed in two sides of the interior of the box body.

As a preferred embodiment, the heat dissipation assembly comprises a protective shell, the protective shell is fixedly arranged at the bottom of the box body, the top of the protective shell is fixedly connected with the bottom of the box body, the protective shell is fixedly arranged outside the motor, and a heat dissipation net is embedded at the bottom of the protective shell.

The utility model discloses beneficial effect:

the utility model provides a pair of sieve husky equipment for construction, its is rational in infrastructure, the configuration montant, the montant rotates and drives reciprocal lead screw and rotates, and reciprocal lead screw rotates and drives the bearing frame and remove, and the bearing frame removes and drives the push pedal and remove, and reciprocating motion realization is beaten the lasting extrusion of second baffle through reciprocating lead screw continuously ceaselessly, makes the shake of second baffle, can prevent the jam of mesh like this, promotes sieve husky efficiency simultaneously.

Drawings

The above advantages of the present invention will become more apparent and more readily appreciated from the detailed description taken in conjunction with the following drawings, which are given by way of illustration only and do not limit the present invention, and in which:

fig. 1 is a schematic structural diagram of a sand screening device for building construction according to the present invention;

figure 2 is a cross-sectional view of a sand screening apparatus according to the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

figure 4 is a schematic view of another embodiment of the sand screening apparatus for building construction of the present invention.

In the drawings, the reference numerals denote the following components:

1. a box body; 2. a motor; 3. a rotating rod; 4. a first pulley; 5. a protective shell; 6. a vertical rod; 7. a second pulley; 8. a belt; 9. a reciprocating screw rod; 10. a bearing seat; 11. a first connector tile; 12. a second connector tile; 13. pushing the plate; 14. a first sleeve; 15. a frame body; 16. a second sleeve; 17. a first baffle plate; 18. a second baffle; 19. a third baffle plate; 20. a stopper; 21. a first telescopic rod; 22. a first spring; 23. a third sleeve; 24. a first bevel gear; 25. a second bevel gear; 26. a cross bar; 27. knocking the plate; 28. a fourth sleeve; 29. a baffle plate IV; 30 sloping plates; 31. a second telescopic rod; 32. a second spring; 33. a vertical plate; 34. a sand inlet hopper; 35. a blocking frame; 36. a first L-shaped plate; 37. a connecting plate; 38. a brush; 39. a second L-shaped plate; 40. a transverse plate; 41. a storage box; 42. and (4) a bracket.

Detailed Description

Fig. 1 to 4 are related schematic views of a sand screening device for building construction according to the present application, and the present invention will be described in detail with reference to the following embodiments and accompanying drawings.

The embodiments described herein are specific embodiments of the present invention, and are intended to be illustrative of the concepts of the present invention, which are intended to be illustrative and exemplary, and should not be construed as limiting the scope of the embodiments of the present invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include technical solutions which make any obvious replacement or modification for the embodiments described herein.

The drawings in the present specification are schematic views to assist in explaining the concept of the present invention, and schematically show the shapes of the respective portions and the mutual relationships thereof. It should be noted that for the sake of clarity in showing the structures of the various components of the embodiments of the present invention, the drawings are not drawn to the same scale. Like reference numerals are used to denote like parts.

A structure schematic diagram of a sieve husky equipment for construction, as shown in fig. 1 to fig. 3. The sand screening equipment for building construction comprises a box body 1, wherein a transmission mechanism is arranged inside the box body 1 and extends to the outside of the box body 1; drive mechanism includes motor 2, motor 2 is fixed to be located 1 bottom of box, 2 output end fixedly connected with bull stick 3 of motor, bull stick 3 sets up in 1 bottom of box and extends to 1 inside of box, 3 tops of bull stick pass through the bearing with 1 top inner wall of box and are connected, 3 external fixation of bull stick is provided with two first belt pulleys 4, 1 inside two vibrations subassemblies that are equipped with of box, vibrations subassembly sets up in one side of

first belt pulley

4, 1 inside screening subassembly that is provided with of box, screening subassembly is located between two vibrations subassemblies, 1 inside branch sieve subassembly that is provided with of box, divide the sieve subassembly to locate screening subassembly bottom, 2 outsides of motor are equipped with radiator unit.

Further, radiator unit includes protective housing 5, protective housing 5 is fixed to be set up in 1 bottom of box, 5 tops of protective housing and 1 bottom fixed connection of box, protective housing 5 is fixed to be set up in 2 outsides of motor, a plurality of louvres have been seted up to 5 bottoms of protective housing, and the louvre can dispel the heat to the motor effectively.

Further, the vibrations subassembly includes montant 6, montant 6 top and 1 top inner wall of box pass through the bearing and are connected, montant 6 sets up in 3 one sides of bull stick, 6 external fixation of montant is provided with second belt pulley 7, be equipped with belt 8 between second belt pulley 7 and the first belt pulley 4, first belt pulley 4 passes through belt 8 with second belt pulley 7 and is connected, 6 bottom fixedly connected with reciprocal lead screw 9 of montant, 9 outside of reciprocal lead screw is provided with bearing frame 10, bearing frame 10 passes through ball nut pair with reciprocal lead screw 9 and is connected, the first connection board 11 of bearing frame 10 both sides fixedly connected with, one side fixedly connected with second connection board 12 of first connection board 11, second connection board 12 bottom fixedly connected with push pedal 13. The bearing seat 10 drives the push plate 13 to effectively vibrate the sand.

As an embodiment of the utility model, the screening assembly comprises a frame body 15, the frame body 15 is arranged inside the box body 1, a first sleeve 14 is arranged outside the rotating rod 3, the first sleeve 14 is connected with the rotating rod 3 through a bearing, the frame body 15 is fixedly arranged outside the first sleeve 14, a second sleeve 16 is arranged outside the rotating rod 3, a first baffle 17 is fixedly arranged outside the second sleeve 16, the second sleeve 16 is connected with the rotating rod 3 through a bearing, a second baffle 18 is fixedly connected to the bottom of the frame body 15, a movable hinge base is fixedly connected to one side of the second baffle 18, a third baffle 19 is fixedly connected to one side of the movable hinge base, a baffle 20 is fixedly connected to one side of the first baffle 17, the bottom of the third baffle 19 is contacted with the top of the baffle 20, the first baffle 17 is arranged in a net shape, the third baffle 19 is arranged in a net shape, a first sliding groove is formed in one side of the box body 1, a first sliding block is embedded in the first sliding groove, a first telescopic rod 21 is fixedly connected to the bottom of the first sliding block, a first spring 22 is fixedly arranged on the outer portion of the first telescopic rod 21, and the lateral portion of the first sliding block is fixedly connected with one side of the second baffle plate 18.

In fig. 3, the screening assembly comprises a third sleeve 23, the third sleeve 23 is arranged outside the rotating rod 3, the third sleeve 23 is connected with the rotating rod 3 through a one-way bearing, a first bevel gear 24 is fixedly arranged outside the third sleeve 23, and the screening assembly further comprises two striking units, and the striking units are respectively arranged on two sides of the first bevel gear 24.

The striking unit comprises a second bevel gear 25, the second bevel gear 25 is arranged at the bottom of a first bevel gear 24, the second bevel gear 25 is meshed with the bevel gears, a cross rod 26 is fixedly connected to one side of the second bevel gear 25, one side of the cross rod 26 is connected with the inner wall of one side of a box body 1 through a bearing, a striking plate 27 is fixedly arranged outside the cross rod 26, a fourth sleeve 28 is fixedly arranged outside the rotating rod 3, the fourth sleeve 28 is connected with the rotating rod 3 through a bearing, a baffle plate fourth 29 is fixedly arranged outside the fourth sleeve 28, inclined plates 30 are fixedly connected to two sides of the baffle plate fourth 29, the baffle plate fourth 29 is net-shaped, the inclined plates 30 are net-shaped, vertical plates 33 are fixedly connected to the bottoms of the inclined plates 30, a second sliding groove is formed in one side of the box body 1, a second sliding block is embedded in the second sliding groove, and a second telescopic rod 31 is fixedly connected to the bottoms of the second sliding block, and a second spring 32 is arranged outside the second telescopic rod 31, and the side part of the second sliding block is fixedly connected with one side of a vertical plate 33. The second spring 32 can provide a good resilience.

Further, 1 top both sides of box are provided with into husky fill 34, it runs through 1 top of box and extends to inside the framework 15 to advance husky fill 34 bottom, 1 one side inner wall fixedly connected with backup pad of box, the backup pad passes through the bearing with montant 6 and is connected, two bottoms of connection board 12 run through the backup pad top and extend the bottom of backup pad, 1 inside fixed being provided with of box keeps off frame 35, keep off frame 35 and fix and set up in first bevel gear 24 outsidely, keep off frame 35 and bull stick 3 and pass through the bearing and be connected, keep off frame 35 and cross rod 26 and pass through the bearing and be connected.

The inside fixed two first L shaped plates 36 that are provided with of framework 15, the lateral part of first L shaped plate 36 and one side fixed connection of bull stick 3, first L shaped plate 36 bottom fixedly connected with connecting plate 37, connecting plate 37 bottom fixedly connected with brush 38, brush 38 bottom contacts with first baffle 17 top, the inside fixedly connected with second L shaped plate 39 in framework 15 both sides, second L shaped plate 39 bottom and first baffle 17 top fixed connection.

The improved sand outlet box is characterized in that sand outlets are formed in two sides of the box body 1 and are formed in the bottom of the inclined plate 30, transverse plates 40 are fixedly connected to two sides of the box body 1, a containing box 41 is arranged at the top of each transverse plate 40, a sand inlet is formed in one side of each containing box 41, the sand outlets are matched with the sand inlets, a support 42 is fixedly connected to the bottom of each transverse plate 40, and discharge ports are formed in two sides of the interior of the box body 1. The sand after the discharge gate can conveniently be screened comes out.

Fig. 4 is a schematic diagram of another embodiment of a screening sand equipment for construction, radiator unit includes protective housing 5, protective housing 5 is fixed to be set up in box 1 bottom, protective housing 5 top and box 1 bottom fixed connection, protective housing 5 is fixed to be set up in the outside of motor 2, the radiator-grid is inlayed to protective housing 5 bottom. Other structures are similar to those of the embodiment shown in fig. 1, and are not described again here.

The working principle of the sand screening device of the utility model is briefly described below with reference to fig. 1:

switch on external power source with motor 2, when motor 2 corotation, the rotation of 2 output ends of motor drives bull stick 3 and rotates, and bull stick 3 rotates and drives first belt pulley 4 and rotate, and first belt pulley 4 rotates and drives belt 8 and rotate, and belt 8 rotates and drives second belt pulley 7 and rotate, and second belt pulley 7 rotates and drives montant 6 and rotate.

The vertical rod 6 rotates to drive the reciprocating screw rod 9 to rotate, the reciprocating screw rod 9 rotates to drive the bearing seat 10 to move, the bearing seat 10 moves to drive the first connecting plate 11 to move, the first connecting plate 11 moves to drive the second connecting plate 12 to move, the second connecting plate 12 moves to drive the push plate 13 to move, the push plate 13 moves to drive the second baffle plate 18 to move, the second baffle plate 18 moves to drive the frame body 15 to move, and the frame body 15 moves to drive the second L-shaped plate 39 to move.

The rotating rod 3 rotates to drive the first L-shaped plate 36 to rotate, the first L-shaped plate 36 rotates to drive the connecting plate 37 to rotate, the connecting plate 37 rotates to drive the brush 38 to rotate, when the motor 2 rotates reversely, the output end of the motor 2 rotates to drive the rotating rod 3 to rotate, the rotating rod 3 rotates to drive the first bevel gear 24 to rotate, the first bevel gear 24 rotates to drive the second bevel gear 25 to rotate, the second bevel gear 25 rotates to drive the second cross rod 26 two, the cross rod 26 rotates to drive the knocking plate 27 to rotate, the knocking plate 27 rotates to drive the baffle plate four 29 to move, the knocking plate 27 rotates to drive the third baffle plate 19 to move, the baffle plate four 29 moves to drive the inclined plate 30 to move, the inclined plate 30 moves to drive the vertical plate 33 to move, the slide block two moving the vertical plate 33 moves, the slide block two moves to drive the telescopic rod two 31 to move, and the telescopic rod two 31 moves to drive the second spring 32 to move.

Compare in prior art's shortcoming and not enough, the utility model provides a pair of sieve husky equipment for construction, its is rational in infrastructure, the configuration montant, the montant rotates and drives reciprocal lead screw and rotate, reciprocal lead screw rotates and drives the bearing frame and remove, and the bearing frame removes and drives the push pedal and removes, realizes beating the continuous extrusion of second baffle through reciprocal lead screw continuous reciprocating motion ceaselessly, makes the shake of second baffle, can prevent the jam of mesh like this, promotes sieve husky efficiency simultaneously.

The present invention is not limited to the above embodiments, and any person can obtain other products in various forms without departing from the scope of the present invention, but any change in shape or structure is included in the technical solution that is the same as or similar to the present invention.

Claims

1. The sand screening equipment for building construction is characterized by comprising a box body, wherein a transmission mechanism is arranged in the box body and extends to the outside of the box body; the transmission mechanism comprises a motor, the motor is fixedly arranged at the bottom of the box body, a rotating rod is fixedly connected with the output end of the motor, the rotating rod is arranged at the bottom of the box body and extends to the inside of the box body, the top of the rotating rod is connected with the inner wall of the top of the box body through a bearing, two first belt pulleys are fixedly arranged on the outer portion of the rotating rod, two vibration assemblies are arranged inside the box body, the vibration assemblies are arranged on one sides of the first belt pulleys, screening assemblies are arranged inside the box body and between the two vibration assemblies, screening assemblies are arranged inside the box body and are arranged at the bottom of the screening assemblies, and heat dissipation assemblies are arranged outside the motor.

2. The sand screening device of claim 1, wherein the heat dissipation assembly comprises a protective shell, the protective shell is fixedly arranged at the bottom of the box body and fixedly connected with the bottom of the box body, the protective shell is fixedly arranged outside the motor, and a plurality of heat dissipation holes are formed in the bottom of the protective shell.

3. The sand screening device according to claim 1, wherein the vibration assembly comprises a vertical rod, the top of the vertical rod is connected with the inner wall of the top of the box body through a bearing, the vertical rod is arranged on one side of a rotating rod, a second belt pulley is fixedly arranged outside the vertical rod, a belt is arranged between the second belt pulley and the first belt pulley, the first belt pulley is connected with the second belt pulley through the belt, a reciprocating screw rod is fixedly connected to the bottom of the vertical rod, a bearing seat is arranged outside the reciprocating screw rod, the bearing seat is connected with the reciprocating screw rod through a ball nut pair, first connecting plates are fixedly connected to two sides of the bearing seat, a second connecting plate is fixedly connected to one side of each first connecting plate, and a push plate is fixedly connected to the bottom of each second connecting plate.

4. The sand screening device of claim 1, wherein the screening assembly comprises a frame body, the frame body is arranged inside the box body, a first sleeve is arranged outside the rotating rod, the first sleeve is connected with the rotating rod through a bearing, the frame body is fixedly arranged outside the first sleeve, a second sleeve is arranged outside the rotating rod, a first baffle is fixedly arranged outside the second sleeve, the second sleeve is connected with the rotating rod through a bearing, a second baffle is fixedly connected to the bottom of the frame body, a movable hinge seat is fixedly connected to one side of the second baffle, a third baffle is fixedly connected to one side of the movable hinge seat, a baffle is fixedly connected to one side of the first baffle, the bottom of the third baffle is in contact with the top of the baffle, the first baffle is in a net shape, the third baffle is in a net shape, and a first chute is arranged on one side of the box body, the first sliding block is embedded in the first sliding groove, a first telescopic rod is fixedly connected to the bottom of the first sliding block, a first spring is fixedly arranged outside the first telescopic rod, and the lateral portion of the first sliding block is fixedly connected with one side of the second baffle.

5. The sand screening device as claimed in claim 1, wherein the screening component comprises a third sleeve, the third sleeve is arranged outside the rotating rod, the third sleeve is connected with the rotating rod through a one-way bearing, a first bevel gear is fixedly arranged outside the third sleeve, and the screening component further comprises two striking units, and the striking units are respectively arranged on two sides of the first bevel gear.

6. The sand screening device of claim 5, wherein the striking unit comprises a second bevel gear, the second bevel gear is arranged at the bottom of a first bevel gear, the second bevel gear is meshed with the bevel gears, one side of the second bevel gear is fixedly connected with a cross rod, one side of the cross rod is connected with the inner wall of one side of the box body through a bearing, a striking plate is fixedly arranged outside the cross rod, a fourth sleeve is fixedly arranged outside the rotating rod, the fourth sleeve is connected with the rotating rod through a bearing, a baffle plate four is fixedly arranged outside the fourth sleeve, inclined plates are fixedly connected to two sides of the baffle plate four, the baffle plate four is net-shaped, the inclined plates are net-shaped, vertical plates are fixedly connected to the bottoms of the inclined plates, a second sliding groove is formed in one side of the box body, a second sliding block is embedded in the second sliding groove, and a second telescopic rod is fixedly connected to the bottoms of the second sliding block, and a second spring is arranged outside the second telescopic rod, and the side part of the second sliding block is fixedly connected with one side of the vertical plate.

7. The sand screening device of claim 3, wherein the two sides of the top of the box body are provided with sand feeding hoppers, the bottoms of the sand feeding hoppers penetrate through the top of the box body and extend into the box body, a supporting plate is fixedly connected to the inner wall of one side of the box body and connected with the vertical rod through a bearing, the bottoms of the second connecting plates penetrate through the tops of the supporting plates and extend out of the bottoms of the supporting plates, a blocking frame is fixedly arranged inside the box body and fixedly arranged outside the first bevel gear, the blocking frame is connected with the rotating rod through a bearing, and the blocking frame is connected with the transverse rod through a bearing.

8. The sand screening device of claim 4, wherein two first L-shaped plates are fixedly arranged inside the frame body, the side portions of the first L-shaped plates are fixedly connected with one side of the rotating rod, a connecting plate is fixedly connected to the bottom of each first L-shaped plate, a brush is fixedly connected to the bottom of each connecting plate, the bottom of each brush is in contact with the top of the first baffle, second L-shaped plates are fixedly connected inside two sides of the frame body, and the bottom of each second L-shaped plate is fixedly connected with the top of the first baffle.

9. The sand screening device of claim 1, wherein sand outlets are formed in two sides of the box body, the sand outlets are formed in the bottom of the inclined plate, transverse plates are fixedly connected to two sides of the box body, a storage box is arranged on the top of each transverse plate, a sand inlet is formed in one side of each storage box, the sand outlets are matched with the sand inlets, a support is fixedly connected to the bottom of each transverse plate, and discharge ports are formed in two sides of the interior of the box body.

10. The sand screening device of claim 1, wherein the heat dissipation assembly comprises a protective shell, the protective shell is fixedly arranged at the bottom of the box body, the top of the protective shell is fixedly connected with the bottom of the box body, the protective shell is fixedly arranged outside the motor, and a heat dissipation net is embedded at the bottom of the protective shell.