Gravel separation device

Abstract

The utility model discloses a sand-gravel separating device, which belongs to the field of sand-gravel separating devices and comprises a box body, stand columns are fixedly mounted at four corners of the bottom end of the box body, a screening pipe is rotatably mounted in the box body, two ends of the screening pipe penetrate through the box body, and a connecting pipe is rotatably mounted at one end of the screening pipe. A stabilizing block is arranged between the connecting pipe and the box body, a feeding frame is fixedly installed at the top end of the connecting pipe, a driving assembly is arranged on the side wall of the end, close to the connecting pipe, of the screening pipe, a conveying assembly is arranged in the screening pipe, and a discharging hopper is arranged on the side, away from the connecting pipe, of the box body. Through the arrangement of the brush plate on the side wall of the screening pipe, when the screening pipe rotates, the brush plate can play a role in cleaning the through hole of the screening pipe, and through the cooperation of the knocking assembly and the telescopic assembly, the screening pipe is repeatedly knocked, so that the screening pipe vibrates, the phenomenon that the through hole of the screening pipe is blocked is avoided, and the screening efficiency is improved. And the screening efficiency of the equipment can be kept.

Description

Technical Field

[0001] The utility model relates to the field of sand and gravel separation devices, and more specifically, to a sand and gravel separation device. Background Technique

[0002] Sand and gravel refers to the loose mixture of sand grains and gravel. Before use, sand and gravel need to be screened by a wind separation device to obtain qualified stones for subsequent use.

[0003] The patent with the application number 202221973225.1 discloses a multi-stage sand and gravel separation device, including a box body for sand and gravel separation. An opening is provided on the box body. A rolling device is arranged inside the box body on one side of the opening of the box body. A moving device is arranged on the box body below the rolling device. The moving device is used for moving and screening sand and gravel. The moving device includes a filter screen arranged below the rolling device. The filter screen is arranged on a fixed seat. A connecting rod is provided on the side wall of the fixed seat. The free end of the connecting rod passes through a roller and is rotationally connected to drive a rod to move. The free end of the drive rod is rotationally connected to the outer surface of a turntable, enabling rapid feeding, avoiding the falling of sand and gravel from the feeding port of the drum during sand and gravel separation, improving work efficiency, and at the same time improving work effect, enabling it to be applicable to various situations, enabling multi-stage filtering of sand and gravel, and improving filtering quality.

[0004] In view of the above related technologies, although they can achieve the effect of multi-stage screening, a cleaning component is not provided on the outer side wall of the drum. After the equipment is used for a long time, the through holes of the drum may be blocked, thereby reducing the subsequent screening efficiency of the equipment. Content of the Utility Model

[0005] In order to solve the above problems, the utility model provides a sand and gravel separation device, adopting the following technical solutions:

[0006] A sand and gravel separation device includes a box body. Columns are fixedly installed at the four corners of the bottom end of the box body. A screening pipe is rotatably installed inside the box body, and both ends of the screening pipe penetrate the box body. A connecting pipe is rotatably installed at one end of the screening pipe. A stabilizing block is arranged between the connecting pipe and the box body. A feeding frame is fixedly installed at the top end of the connecting pipe. A driving component is arranged on the side wall of the screening pipe near the connecting pipe end. A conveying component is arranged inside the screening pipe. A discharging hopper is arranged on the side of the box body away from the connecting pipe;

[0007] Two symmetrically distributed brush plates are fixedly installed inside the box body, and the opposite sides of the two brush plates are in contact with the side wall of the screening pipe. A second reduction motor is fixedly installed at the top end of the box body. A knocking component is arranged between the second reduction motor and the screening pipe;

[0008] One side of the box body is provided with a discharge port. The inner wall of the top end of the discharge port is hinged with a sealing plate. A lifting assembly is arranged between the sealing plate and the box body. The inner wall of the bottom end of the box body is inclined, and a material pushing assembly is arranged on the inner wall of the bottom end of the box body.

[0009] By adopting the above technical solutions, when the equipment is in use, the staff puts sand and gravel into the connecting pipe through the feeding frame. The sand and gravel enter the screening pipe through the connecting pipe, and then the screening pipe is driven to rotate by the driving assembly. And the sand and gravel are slowly conveyed by the conveying assembly to move inside the screening pipe. The qualified materials are discharged through the through holes of the screening pipe to the inner wall of the bottom end of the box body. The unqualified materials are conveyed by the conveying assembly and then discharged through the end of the screening pipe away from the connecting pipe, so as to play the role of screening sand and gravel. A brush plate is arranged on the side wall of the screening pipe. When the screening pipe rotates, the brush plate can play the role of cleaning and dredging the through holes on the side wall of the screening pipe. And at the same time, the screening pipe is knocked by the knocking assembly to make the screening pipe vibrate, which helps to avoid the phenomenon of blockage of the through holes of the screening pipe and is beneficial to maintaining the screening efficiency of the screening pipe. A discharge port is arranged on the side wall of the box body, which is convenient for the subsequent discharging of the equipment. And a sealing plate is arranged in the discharge port, which can play the role of blocking the discharge port. When discharging is required, the sealing plate is driven by the lifting assembly to disengage from the discharge port, and then the material pushing assembly operates to push the materials inside the box body out, achieving the effect of assisting in discharging.

[0010] Further, the driving assembly includes a driven gear fixedly sleeved on the side wall of the screening pipe near one end of the connecting pipe. A first reduction motor is fixedly installed at the top end of the box body. A driving gear is fixedly sleeved on the side wall of the output shaft of the first reduction motor. The driving gear meshes with the driven gear.

[0011] By adopting the above technical solutions, after the sand and gravel enter the screening pipe, the driving gear is driven to rotate by the first reduction motor. The driving gear drives the driven gear to rotate, and the driven gear drives the screening pipe to rotate, so as to play the role of screening sand and gravel.

[0012] Further, the conveying assembly includes a rotating rod rotatably installed on the inner wall of the connecting pipe away from one end of the screening pipe. An installation box is fixedly installed on the side of the connecting pipe away from the screening pipe. A third reduction motor is fixedly installed in the installation box. One end of the rotating rod away from the installation box extends into the screening pipe. A spiral blade is sleeved on the side wall of the rotating rod. One end of the rotating rod away from the discharge hopper penetrates through the connecting pipe and extends into the installation box. The end of the rotating rod penetrating through the installation box is fixedly connected with the end of the output shaft of the third reduction motor.

[0013] By adopting the above technical solutions, the rotating rod is driven to rotate by the third reduction motor. The rotating rod drives the spiral blade to rotate, so that the spiral blade rotates inside the screening pipe, which can play the role of conveying sand and gravel. The sand and gravel are slowly driven to move by the rotation of the spiral blade, which is convenient for the equipment to screen, and can also play the role of discharging the unqualified materials.

[0014] Furthermore, the knocking assembly includes two rubber rings fixedly sleeved on the side walls of the screening pipe, a frame is provided above the box body, a block is fixedly installed on the inner wall of one side of the frame body, a turntable is fixedly sleeved on the side wall of the output shaft of the second reduction motor, a toggle block is fixedly installed on the side wall of the turntable, the turntable and the toggle block are both located in the frame body, connecting rods are fixedly installed on both sides of the frame body, lifting blocks are fixedly installed on the bottom ends of the two connecting rods, the bottom ends of the two lifting blocks slide through the box body, and knocking blocks are fixedly installed on the bottom ends of the two lifting blocks, the bottom ends of the two knocking blocks are in contact with the side walls of the rubber ring on the same side, two symmetrically distributed stabilizing rods are fixedly installed on the top of the box body, the top ends of the two stabilizing rods slide through the connecting rods of the same group, and a telescopic assembly is provided between the bottom end of the frame body and the top end of the box body.

[0015] By adopting the above technical scheme, when the screening tube screens sand and gravel, the turntable is driven to rotate by the second reduction motor, and the turntable drives the toggle block to rotate, and the toggle block pushes the block installed on the inner wall of the frame, and the block brings the frame down synchronously, and the frame moves with the connecting rod, and the connecting rod drives the same group of lifting blocks to bring the knocking block down, so that the knocking block knocks the rubber ring installed on the side wall of the screening tube, thereby causing the screening tube to vibrate slightly, which helps to avoid the blockage of the through hole of the screening tube and is beneficial to maintaining the screening efficiency of the screening tube, and the knocking block is made of rubber material. It has a buffering effect, which is beneficial to reduce the damage to the screen pipe, and a telescopic assembly is provided between the frame and the top of the box body. When the frame descends, the frame pushes the telescopic assembly to contract. When the toggle block and the stop block are disengaged, the frame rises under the rebound force of the telescopic assembly, and then the toggle block pushes the stop block to descend again. This is repeated, which can repeatedly hit the screen pipe. The connecting rod is located on the side wall of the same group of stabilizing rods and slides. Through the setting of the stabilizing rod, it plays a role in limiting the stabilization of the connecting rod, which is beneficial to maintaining the stability of the lifting and lowering of the frame, the connecting rod, etc.

[0016] Furthermore, the telescopic assembly includes a pillar fixedly installed at the bottom end of the frame, a movable groove is opened at the bottom end of the pillar, a support rod is slidably installed in the movable groove, a spring is fixedly connected between the top end of the support rod and the inner wall of the top end of the movable groove, the bottom end of the support rod is fixedly connected to the top end of the box body, two symmetrically distributed limit blocks are fixedly installed on the side wall of the top end of the support rod, and the inner wall of the movable groove is opened with a limit groove matching the limit block.

[0017] By adopting the above technical solution, when the frame body descends, the frame body pushes the pillar to move downward, thereby making the support rod slide in the movable groove opened at the bottom end of the support rod, and the support rod pushes the spring to contract. When the toggle block and the stop block are disengaged, the frame body rises under the rebound force of the spring, and then the toggle block pushes the stop block to descend again. This process is repeated, which can achieve the effect of repeatedly knocking the screening tube. When the support rod slides in the movable groove, the support rod slides in the limit groove on the same side with the limit block. The cooperation of the limit block and the limit groove is conducive to maintaining the stability of the sliding of the support rod and helps to prevent the support rod from being disengaged from the movable groove.

[0018] Furthermore, the lifting assembly includes a mounting plate fixedly mounted on one side of the box body close to the discharge port, a telescopic rod is hinged at the bottom end of the mounting plate, the end of the telescopic rod is hinged at the side opposite to the sealing plate, clamping blocks are fixedly mounted on both sides of the sealing plate, and a clamping groove matching the clamping block is opened on the side of the box body close to the sealing plate.

[0019] By adopting the above technical solution, the sealing plate is driven to move by the telescopic rod, which makes it easy to seal and open the discharge port and facilitate subsequent discharge.

[0020] Furthermore, the pushing assembly includes a pushing plate slidably mounted on the inner wall of the bottom end of the box body, a cylinder is fixedly mounted on the side of the box body away from the sealing plate, the cylinder piston shaft slides through the box body, and the end of the cylinder piston shaft is fixedly connected to the side opposite to the pushing plate, a baffle is fixedly mounted on the top end of the pushing plate, and the baffle passes through the box body at one end away from the sealing plate.

[0021] By adopting the above technical solution, when discharging is required, the push plate located on the inner wall of the bottom end of the box is driven by the cylinder to slide, thereby pushing the stone out of the discharge port, thereby achieving the effect of auxiliary unloading, and a baffle is provided on the top of the push plate to prevent the stone from falling to the side of the push plate away from the discharge port, so that the equipment can screen and discharge synchronously, which is beneficial to maintaining the processing efficiency of the equipment.

[0022] In summary, the utility model includes the following beneficial technical effects:

[0023] (1) In the utility model, the side wall of the screen tube is provided with a brush plate. When the screen tube rotates, the brush plate can clean the through hole of the screen tube. And through the cooperation of the knocking component and the telescopic component, the screen tube is repeatedly knocked, so that the screen tube vibrates, which helps to avoid the blockage of the through hole of the screen tube, and is beneficial to maintain the screening efficiency of the equipment.

[0024] (2) In the present utility model, through the arrangement of the material pushing component, the push plate is driven by a cylinder to slide on the inner wall at the bottom end of the box body, which serves to push the stone material out of the discharge port, achieving the effect of assisting in discharging. Moreover, a baffle is provided on the top of the push plate, which can block the stone material from falling to the side of the push plate away from the discharge port, facilitating the synchronous screening and discharging of the equipment and being conducive to maintaining the processing efficiency of the equipment. Description of the Drawings

[0025] Figure 1 It is a schematic structural diagram of a first perspective of a sand and stone separation device;

[0026] Figure 2 It is a schematic structural diagram of a second perspective of the present utility model;

[0027] Figure 3 For the present utility model Figure 2 An enlarged view of A;

[0028] Figure 4 It is a cross-sectional view of the present utility model;

[0029] Figure 5 For the present utility model Figure 4 An enlarged view of B;

[0030] Figure 6 It is a cross-sectional view of the support column in the present utility model.

[0031] Explanation of the reference numerals in the drawings:

[0032] 1. Box body; 2. Screen pipe; 3. Connecting pipe; 4. Driven gear; 5. Installation box; 6. Driving gear; 7. First reduction motor; 8. Lifting block; 9. Connecting rod; 10. Frame body; 11. Second reduction motor; 12. Support column; 13. Support rod; 14. Installation plate; 15. Expansion rod; 16. Sealing plate; 17. Discharge port; 18. Cylinder; 19. Baffle; 20. Spiral blade; 21. Rotating rod; 22. Turntable; 23. Poking block; 24. Stopper; 25. Third reduction motor; 26. Knocking block; 27. Rubber ring; 28. Brush plate; 29. Push plate; 30. Activity slot; 31. Spring. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model; obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0034] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0035] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "provided with", "sheathed / connected", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0036] The following further elaborates on the present utility model in conjunction with the attached Figures 1-6 drawings.

[0037] Please refer to Figures 1-6 , a sand and gravel separation device, comprising a box body 1. Columns are fixedly installed at the four corners of the bottom end of the box body 1. A sieve pipe 2 is rotatably installed inside the box body 1, and both ends of the sieve pipe 2 penetrate through the box body 1. One end of the sieve pipe 2 is rotatably installed with a connecting pipe 3. A stabilizing block is provided between the connecting pipe 3 and the box body 1. A feeding frame is fixedly installed at the top end of the connecting pipe 3. A driving assembly is provided on the side wall of the sieve pipe 2 near one end of the connecting pipe 3. The driving assembly includes a driven gear 4 fixedly sleeved on the side wall of the sieve pipe 2 near one end of the connecting pipe 3. A first reduction motor 7 is fixedly installed at the top end of the box body 1. A driving gear 6 is fixedly sleeved on the side wall of the output shaft of the first reduction motor 7. The driving gear 6 meshes with the driven gear 4. When the device is in use, the staff puts sand and gravel into the connecting pipe 3 through the feeding frame. The sand and gravel enter the sieve pipe 2 through the connecting pipe 3. Subsequently, the first reduction motor 7 drives the driving gear 6 to rotate, the driving gear 6 drives the driven gear 4 to rotate, and the driven gear 4 drives the sieve pipe 2 to rotate, thereby playing the role of screening sand and gravel.

[0038] A conveying assembly is provided in the screening pipe 2, and the conveying assembly includes a rotating rod 21 rotatably mounted on the inner wall of one end of the connecting pipe 3 away from the screening pipe 2, a mounting box 5 is fixedly mounted on the side of the connecting pipe 3 away from the screening pipe 2, a third reduction motor 25 is fixedly mounted in the mounting box 5, the end of the rotating rod 21 away from the mounting box 5 extends into the screening pipe 2, a spiral blade 20 is sleeved on the side wall of the rotating rod 21, the end of the rotating rod 21 away from the discharge hopper penetrates the connecting pipe 3 and extends into the mounting box 5, the end of the rotating rod 21 penetrates the mounting box 5 and is fixedly connected to the end of the output shaft of the third reduction motor 25, and the third reduction motor 25 is connected to the third reduction motor 25. The reduction motor 25 drives the rotating rod 21 to rotate, and the rotating rod 21 drives the spiral blade 20 to rotate, so that the spiral blade 20 is located in the screening tube 2 and rotates, which can play the role of conveying sand and gravel. The spiral blade 20 rotates slowly to drive the sand and gravel to move, which is convenient for equipment screening and can play the role of discharging unqualified materials. A discharge hopper is provided on the side of the box body 1 away from the connecting pipe 3. Qualified materials are discharged to the inner wall of the bottom end of the box body 1 through the through hole of the screening tube 2. Unqualified materials are transported by the spiral blade 20 and then discharged through the end of the screening tube 2 away from the connecting pipe 3, which can play the role of screening sand and gravel.

[0039] Two symmetrically distributed brush plates 28 are fixedly installed in the box body 1, and the opposite sides of the two brush plates 28 are in contact with the side wall of the screen pipe 2. A second reduction motor 11 is fixedly installed on the top of the box body 1. A knocking assembly is provided between the second reduction motor 11 and the screen pipe 2. The knocking assembly includes two rubber rings 27 fixedly sleeved on the side wall of the screen pipe 2. A frame body 10 is provided above the box body 1. A stopper 24 is fixedly installed on the inner wall of one side of the frame body 10. A rotating disk 22 is fixedly sleeved on the side wall of the output shaft of the second reduction motor 11. The rotating disk 22 A toggle block 23 is fixedly installed on the side wall, the turntable 22 and the toggle block 23 are both located in the frame 10, connecting rods 9 are fixedly installed on both sides of the frame 10, lifting blocks 8 are fixedly installed on the bottom ends of the two connecting rods 9, the bottom ends of the two lifting blocks 8 slide through the box body 1, and knocking blocks 26 are fixedly installed on the bottom ends of the two lifting blocks 8, the bottom ends of the two knocking blocks 26 are in contact with the side wall of the rubber ring 27 on the same side, and two symmetrically distributed stabilizing rods are fixedly installed on the top of the box body 1, and the top ends of the two stabilizing rods slide through the same group of connecting rods 9.

[0040] A telescopic assembly is provided between the bottom end of the frame 10 and the top end of the box body 1, and the telescopic assembly includes a support 12 fixedly installed at the bottom end of the frame body 10, a movable groove 30 is provided at the bottom end of the support 12, a support rod 13 is slidably installed in the movable groove 30, a spring 31 is fixedly connected between the top end of the support rod 13 and the inner wall of the top end of the movable groove 30, the bottom end of the support rod 13 is fixedly connected to the top end of the box body 1, two symmetrically distributed limit blocks are fixedly installed on the side wall of the top end of the support rod 13, and a limit groove matching the limit block is provided on the inner wall of the movable groove 30.

[0041] The side wall of the sieve pipe 2 is provided with a brush plate 28. When the sieve pipe 2 rotates, the brush plate 28 can clean and dredge the through holes on the side wall of the sieve pipe 2. Moreover, the second reduction motor 11 can be used to drive the turntable 22 to rotate, and the turntable 22 drives the toggle block 23 to rotate. By pushing the block 24 installed on the inner wall of the frame 10 through the toggle block 23, the block 24 drives the frame 10 to descend synchronously. The frame 10 drives the connecting rod 9 to move, and the connecting rod 9 drives the same group of lifting blocks 8 to drive the knocking block 26 to descend, so that the knocking block 26 knocks the rubber ring 27 installed on the side wall of the sieve pipe 2, thereby causing the sieve pipe 2 to vibrate slightly, which helps to avoid the blockage of the through holes of the sieve pipe 2, is conducive to maintaining the screening efficiency of the sieve pipe 2, and the knocking block 26 is made of rubber material, having a buffering effect, which is conducive to reducing the damage degree suffered by the sieve pipe 2. When the frame 10 descends, the frame 10 pushes the support column 12 to move downward, and then the support rod 13 slides in the movable groove 30 opened at the bottom end of the support column 12, and the support rod 13 pushes the spring 31 to contract. When the toggle block 23 and the block 24 are disengaged, the frame 10 rises under the action of the rebounding force of the spring 31, and then the block 24 is pushed to descend again through the toggle block 23. Repeating like this can play the role of repeatedly knocking the sieve pipe 2. When the support rod 13 slides in the movable groove 30, the support rod 13 drives the limit block to slide in the same-side limit groove. Through the cooperation of the limit block and the limit groove, it is conducive to maintaining the stability of the sliding of the support rod 13 and helps to prevent the support rod 13 from disengaging from the movable groove 30.

[0042] One side of the box body 1 is provided with a discharge port 17. The inner wall of the top end of the discharge port 17 is hinged with a sealing plate 16. An elevating assembly is arranged between the sealing plate 16 and the box body 1. The elevating assembly includes a mounting plate 14 fixedly installed on one side of the box body 1 close to the discharge port 17. The bottom end of the mounting plate 14 is hinged with a telescopic rod 15. The end of the telescopic rod 15 is hinged with the side opposite to the sealing plate 16. Both sides of the sealing plate 16 are fixedly installed with clamping blocks. The box body 1 is provided with a clamping groove matching the clamping blocks on the side close to the sealing plate 16. When discharging is required, the sealing plate 16 is driven to move through the telescopic rod 15, so that the sealing plate 16 is disengaged from the clamping of the discharge port 17.

[0043] The inner wall of the bottom end of the box body 1 is inclined. A material pushing assembly is arranged on the inner wall of the bottom end of the box body 1. The material pushing assembly includes a push plate 29 slidably installed on the inner wall of the bottom end of the box body 1. A cylinder 18 is fixedly installed on one side of the box body 1 away from the sealing plate 16. The piston shaft of the cylinder 18 slides through the box body 1, and the end of the piston shaft of the cylinder 18 is fixedly connected with the side opposite to the push plate 29. A baffle 19 is fixedly installed at the top of the push plate 29, and one end of the baffle 19 away from the sealing plate 16 penetrates through the box body 1. By driving the push plate 29 to slide on the inner wall of the bottom end of the box body 1 through the cylinder 18, the function of pushing the stone material out of the discharge port 17 is achieved, and the effect of assisting in discharging is achieved. Moreover, a baffle 19 is arranged at the top of the push plate 29, which can play the role of blocking the stone material from falling to the side of the push plate 29 away from the discharge port 17, facilitating the equipment to screen and discharge materials synchronously, and being conducive to maintaining the processing efficiency of the equipment.

[0044] The implementation principle of the embodiment of the present utility model is as follows: When the device is in use, the staff puts sand and gravel into the connecting pipe 3 through the feeding frame. The sand and gravel enter the screening pipe 2 through the connecting pipe 3, and then the screening pipe 2 is driven to rotate by the driving component, and the sand and gravel are slowly conveyed through the conveying component to move inside the screening pipe 2. The qualified materials are discharged through the through holes of the screening pipe 2 to the inner wall of the bottom end of the box body 1, and the unqualified materials are conveyed through the conveying component and then discharged from one end of the screening pipe 2 away from the connecting pipe 3, so as to play the role of screening sand and gravel. A brush plate 28 is provided on the side wall of the screening pipe 2. When the screening pipe 2 rotates, the brush plate 28 can play the role of cleaning and dredging the through holes on the side wall of the screening pipe 2, and at the same time, the screening pipe 2 is knocked by the knocking component to make the screening pipe 2 vibrate, which helps to avoid the phenomenon of blockage of the through holes of the screening pipe 2 and is beneficial to maintaining the screening efficiency of the screening pipe 2. An outlet 17 is opened on the side wall of the box body 1 to facilitate the subsequent discharging of the device, and a sealing plate 16 is provided in the outlet 17 to play the role of blocking the outlet 17. When discharging is required, the sealing plate 16 is driven by the lifting component to disengage from the outlet 17, and then the pushing component operates to push the materials inside the box body 1 out, achieving the effect of assisting in discharging.

[0045] The above are all the preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A sand and gravel separation device, comprising a housing (1), characterized in that: The bottom four corners of the box body (1) are fixedly mounted with uprights, a screening tube (2) is rotatably mounted in the box body (1), and both ends of the screening tube (2) penetrate the box body (1), a connecting tube (3) is rotatably mounted on one end of the screening tube (2), a stabilizing block is provided between the connecting tube (3) and the box body (1), a feed frame is fixedly mounted on the top of the connecting tube (3), a driving assembly is provided on the side wall of the screening tube (2) close to one end of the connecting tube (3), a conveying assembly is provided in the screening tube (2), and a discharge hopper is provided on the side of the box body (1) away from the connecting tube (3); Two symmetrically distributed brush plates (28) are fixedly installed in the box body (1), and opposite sides of the two brush plates (28) are in contact with the side wall of the screening tube (2). A second reduction motor (11) is fixedly installed at the top of the box body (1), and a knocking component is provided between the second reduction motor (11) and the screening tube (2); A discharge port (17) is provided on one side of the box body (1), a sealing plate (16) is hingedly connected to the inner wall at the top end of the discharge port (17), a lifting assembly is provided between the sealing plate (16) and the box body (1), the inner wall at the bottom end of the box body (1) is inclined, and a pushing assembly is provided on the inner wall at the bottom end of the box body (1).

2. A sand and gravel separation device according to claim 1, characterized in that: The driving assembly comprises a driven gear (4) fixedly sleeved on the side wall of the screening pipe (2) close to one end of the connecting pipe (3); a first reduction motor (7) is fixedly mounted on the top of the housing (1); a driving gear (6) is fixedly sleeved on the side wall of the output shaft of the first reduction motor (7); and the driving gear (6) is meshed with the driven gear (4).

3. A sand and gravel separation device according to claim 1, characterized in that: The conveying assembly comprises a rotating rod (21) rotatably mounted on the inner wall of one end of the connecting pipe (3) away from the screening pipe (2); a mounting box (5) is fixedly mounted on the side of the connecting pipe (3) away from the screening pipe (2); a third reduction motor (25) is fixedly mounted in the mounting box (5); the end of the rotating rod (21) away from the mounting box (5) extends into the screening pipe (2); a spiral blade (20) is sleeved on the side wall of the rotating rod (21); the end of the rotating rod (21) away from the discharge hopper passes through the connecting pipe (3) and extends into the mounting box (5); the end of the rotating rod (21) passing through the mounting box (5) is fixedly connected to the end of the output shaft of the third reduction motor (25).

4. A sand and gravel separation device according to claim 1, characterized in that: The knocking assembly comprises two rubber rings (27) fixedly sleeved on the side wall of the screening pipe (2); a frame (10) is provided above the box body (1); a stopper (24) is fixedly installed on the inner wall of one side of the frame (10); a rotating disk (22) is fixedly sleeved on the side wall of the output shaft of the second reduction motor (11); a toggle block (23) is fixedly installed on the side wall of the rotating disk (22); the rotating disk (22) and the toggle block (23) are both located in the frame (10); connecting rods (9) are fixedly installed on both sides of the frame (10); and the two A lifting block (8) is fixedly installed at the bottom end of the connecting rod (9), and the bottom ends of the two lifting blocks (8) slide and penetrate into the box body (1). A knocking block (26) is fixedly installed at the bottom end of the two lifting blocks (8), and the bottom ends of the two knocking blocks (26) are in contact with the side wall of the rubber ring (27) on the same side. Two symmetrically distributed stabilizing rods are fixedly installed at the top end of the box body (1), and the top ends of the two stabilizing rods slide and penetrate the same group of connecting rods (9). A telescopic component is provided between the bottom end of the frame body (10) and the top end of the box body (1).

5. A sand and gravel separation device according to claim 4, characterized in that: The telescopic assembly comprises a support (12) fixedly mounted on the bottom end of the frame (10); a movable groove (30) is provided at the bottom end of the support (12); a support rod (13) is slidably mounted in the movable groove (30); a spring (31) is fixedly connected between the top end of the support rod (13) and the inner wall of the top end of the movable groove (30); the bottom end of the support rod (13) is fixedly connected to the top end of the box (1); two symmetrically distributed limit blocks are fixedly mounted on the side wall of the top end of the support rod (13); and a limit groove matching the limit block is provided on the inner wall of the movable groove (30).

6. A sand and gravel separation device according to claim 1, characterized in that: The lifting assembly comprises a mounting plate (14) fixedly mounted on a side of the box body (1) close to the discharge port (17); a telescopic rod (15) is hingedly connected to the bottom end of the mounting plate (14); an end of the telescopic rod (15) is hingedly connected to a side opposite to a sealing plate (16); clamping blocks are fixedly mounted on both sides of the sealing plate (16); and a clamping groove matching the clamping block is provided on a side of the box body (1) close to the sealing plate (16).

7. A sand and gravel separation device according to claim 1, characterized in that: The pusher assembly comprises a push plate (29) slidably mounted on the inner wall of the bottom end of the box body (1); a cylinder (18) is fixedly mounted on the side of the box body (1) away from the sealing plate (16); the piston shaft of the cylinder (18) slides through the box body (1), and the end of the piston shaft of the cylinder (18) is fixedly connected to the side opposite to the push plate (29); a baffle (19) is fixedly mounted on the top end of the push plate (29), and the end of the baffle (19) away from the sealing plate (16) penetrates the box body (1).

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