Gravel screening device

Abstract

The utility model discloses a gravel screening device, and particularly relates to the technical field of screening devices, which comprises a screening box, one side of the screening box is connected with a box door through a hinge, two vibrating mechanisms are arranged on the inner wall of the screening box, a connecting plate is arranged in the screening box, and a connecting mechanism is arranged in the connecting plate. The connecting mechanism comprises a connecting groove formed in the connecting plate, a filter plate is clamped in the connecting groove, two fixing grooves are formed in the surface of the connecting plate, movable plates are arranged at the tops of the two fixing grooves, the movable plates are movably connected with the connecting plate, and rotating rods are in threaded connection with the tops of the movable plates. According to the gravel screening device, gravel can be subjected to vibration screening through the vibration filtering plate, gravel of different sizes can be screened twice, gravel of different sizes can be classified, the filtering plate for screening can be detached and maintained, and the practicability of the gravel screening device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of screening devices, and more specifically, the utility model relates to a gravel screening device. Background Art

[0002] Gravel refers to a mixture of sand and gravel. Small pebbles and boulders are also called gravel. During on-site construction, it is usually necessary to screen the gravel to ensure that the gravel meets the required size. As one of the most important raw materials for building construction, gravel plays an important role. During the use of gravel, it is generally necessary to screen the gravel, and the particle size of the gravel has a certain impact on the strength of concrete. Therefore, a gravel screening device is required.

[0003] When the existing gravel screening device screens gravel at the construction site, it only filters through a single layer of sieve mesh. The sieve mesh has no vibration amplitude, and too many equivalent gravels will not be fully filtered, which will cause the screened sand and gravel to be easily confused with the screened sand and gravel, affecting the use quality of the sand and gravel.

[0004] After retrieval, the Chinese patent with the publication number CN213032968U discloses a gravel screening device for construction sites. This structure is provided with a buffer block, and the bottom of the buffer block is fixedly connected with a support frame. During the shaking process of the frame, the frame and the sieve mesh itself have weight, and such a setting can make the frame have a certain buffer during the falling process, extending the service life of the device.

[0005] However, the following problems will occur during the use of the above device: This structure vibrates the filter plate to screen the gravel. When the filter plate is blocked and damaged, it is difficult to disassemble, repair, and replace it, thus affecting the screening efficiency of the device. Summary of the Utility Model

[0006] In order to overcome the above-mentioned defects of the prior art, the utility model provides a gravel screening device to solve the problems raised in the above background art.

[0007] To achieve the above object, the utility model provides the following technical solutions:

[0008] A grit screening device, comprising a screening box, one side of the screening box is connected with a box door through a hinge, two vibration mechanisms are arranged on the inner wall of the screening box, a connecting plate is arranged inside the screening box, a connecting mechanism is arranged inside the connecting plate, the connecting mechanism includes a connecting groove opened inside the connecting plate, a filter plate is clamped inside the connecting groove, two fixing grooves are opened on the surface of the connecting plate, movable plates are arranged at the tops of the two fixing grooves, the movable plates are movably connected with the connecting plate, a rotating rod is threadedly connected to the top of the movable plate, one end of the rotating rod extends into the fixing groove, the rotating rod is threadedly connected with the fixing groove, a clamping block is arranged at the bottom of the movable plate, a clamping groove is opened on the surface of the filter plate, the clamping block is connected with the clamping groove, two handles are arranged on the top of the filter plate, the shapes of the handles are both U-shaped, and a plurality of filtering holes are opened on the surface of the handle. By adopting the above technical solution, it is convenient to disassemble and repair the filter plate.

[0009] As a further description of the above technical solution: The vibration mechanism includes inclined grooves opened on both sides of the inner wall of the screening box, both of the inclined grooves are connected with the connecting plate, a plurality of springs are arranged on both sides of the connecting plate, a vibration motor is arranged at the bottom of the connecting plate, and the bottom of the vibration motor is connected with the inclined groove. By adopting the above technical solution, it is convenient to vibrate and screen the entering grit.

[0010] As a further description of the above technical solution: Two inclined plates are arranged on both sides of the inner wall of the screening box, discharge ports are opened on one side of both of the inclined plates, a switch plate is movably connected inside the two discharge ports, a diversion plate is arranged on one side of the switch plate, the diversion plate is connected with the screening box, a baffle is connected to the top of the screening box through a hinge, and a discharge funnel is arranged at the bottom of the screening box, and one end of the discharge funnel extends to the outside of the screening box. By adopting the above technical solution, it is convenient to classify grit of different sizes.

[0011] The technical effects and advantages of the present utility model:

[0012] 1. By setting the connecting mechanism, compared with the prior art, when it is necessary to disassemble the filter plate from the connecting plate, rotate the rotating rod at the top of the fixing plate, separate the rotating rod from the fixing groove, no longer connect and fix the movable plate, open the movable plate, separate the clamping block connecting the movable plate and the filter plate from the clamping groove, no longer connect and fix the filter plate, and drive the filter plate to be taken out from the connecting groove inside the connecting plate through the handle on the surface of the filter plate, which is convenient for disassembling and installing the filter plate, avoids the problem that the traditional filter plate is fixedly installed and difficult to disassemble, not only makes the disassembly process of the filter plate simple and convenient, but also speeds up the disassembly speed of the filter plate, thereby improving the work efficiency of repairing or replacing the filter plate;

[0013] 2. By setting up the coordinated use of the vibration mechanism, filter plate, opening and closing plate, and drainage plate, compared with the prior art, the two filter plates provided can perform secondary screening on the gravel, enabling different sizes of gravel to be filtered during the screening process. The vibration motor drives the connecting plate to vibrate, and the connecting plate drives the filter plate to vibrate together. The springs on the connecting plate enable the connecting plate to vibrate inside the inclined groove, improving the vibration screening effect of the filter plate on the gravel. The gravel of different sizes slides to one side of the opening and closing plate through the inclined filter plate. Opening the opening and closing plate allows the gravel of different sizes to be classified and collected through the drainage plate, enabling different classifications of the gravel sizes, eliminating the need for manual classification by workers, reducing work efficiency, and optimizing the usage effect of the gravel. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0015] Figure 2 It is a schematic diagram of the connection mechanism of the present utility model.

[0016] Figure 3 It is a schematic diagram of the vibration structure of the present utility model.

[0017] Figure 4 It is a schematic top view structure of the present utility model.

[0018] Figure 5 It is a schematic side view structure of the present utility model.

[0019] Reference numerals are: 1, screening box; 2, box door; 3, connecting plate; 4, filter plate; 5, fixed groove; 6, movable plate; 7, rotating rod; 8, card slot; 9, handle; 10, filter hole; 11, spring; 12, vibration motor; 13, inclined plate; 14, opening and closing plate; 15, drainage plate; 16, baffle; 17, discharge funnel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following will clearly and completely describe the technical solutions in the present utility model 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 of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] This application embodiment discloses as attached Figures 1-5A gravel screening device shown in the figure specifically includes a screening box 1. One side of the screening box 1 is connected with a box door 2 through a hinge. Two vibration mechanisms are arranged on the inner wall of the screening box 1. A connecting plate 3 is arranged inside the screening box 1. A connecting mechanism is arranged inside the connecting plate 3. The connecting mechanism includes a connecting groove opened inside the connecting plate 3. A filter plate 4 is clamped inside the connecting groove. Two fixing grooves 5 are opened on the surface of the connecting plate 3. Moving plates 6 are arranged at the tops of the two fixing grooves 5. The moving plates 6 are movably connected with the connecting plate 3. The tops of the moving plates 6 are threadedly connected with rotating rods 7. One end of the rotating rod 7 extends into the fixing groove 5. The rotating rod 7 is threadedly connected with the fixing groove 5. A clamping block is arranged at the bottom of the moving plate 6. A clamping groove 8 is opened on the surface of the filter plate 4. The clamping block is connected with the clamping groove 8. Two handles 9 are arranged at the top of the filter plate 4. The shapes of the handles 9 are both U-shaped. A plurality of filter holes 10 are opened on the surfaces of the handles 9. When it is necessary to disassemble the filter plate 4 from the connecting plate 3, rotate the rotating rod 7 at the top of the fixing plate to separate the rotating rod 7 from the fixing groove 5, and no longer connect and fix the moving plate 6. Open the moving plate 6 to separate the clamping block connecting the moving plate 6 and the filter plate 4 from the clamping groove 8, and no longer connect and fix the filter plate 4. Drive the filter plate 4 to be taken out from the connecting groove inside the connecting plate 3 through the handle 9 on the surface of the filter plate 4, which is convenient for disassembling and installing the filter plate 4, avoids the problem that the traditional filter plate 4 is fixedly installed and difficult to disassemble, and speeds up the disassembly speed of the filter plate 4.

[0022] Refer to Figure 2 and Figure 3 shown in the figure, the vibration mechanism includes inclined grooves opened on both sides of the inner wall of the screening box 1. Both of the two inclined grooves are connected with the connecting plate 3. A plurality of springs 11 are arranged on both sides of the connecting plate 3. A vibration motor 12 is arranged at the bottom of the connecting plate 3. The bottom of the vibration motor 12 is connected with the inclined groove. By turning on the vibration motor 12, the vibration motor 12 drives the connecting plate 3 to vibrate, thereby driving the filter plate 4 to vibrate, which is convenient for vibrating and screening the incoming gravel. The vibration motor 12 drives the connecting plate 3 to vibrate. The connecting plate 3 drives the filter plate 4 to vibrate together. The springs 11 on the connecting plate 3 enable the connecting plate 3 to vibrate inside the inclined groove. By arranging two filter plates 4, the gravel can be secondarily screened, so that gravel of different sizes can be filtered during the screening process of the gravel.

[0023] Refer to Figure 1 and Figure 4As shown in the figure, two inclined plates 13 are arranged on both sides of the inner wall of the screening box 1. Discharge ports are formed on one side of the two inclined plates 13. A switching plate 14 is movably connected inside the two discharge ports. A diversion plate 15 is arranged on one side of the switching plate 14. The diversion plate 15 is connected to the screening box 1. The top of the screening box 1 is connected with a baffle 16 through a hinge. The bottom of the screening box 1 is provided with a discharge funnel 17. One end of the discharge funnel 17 extends to the outside of the screening box 1. Open the baffle 16 at the top of the screening box 1, and add the gravel to be screened into the screening box 1 through the top of the screening box 1. The gravel entering the screening box 1 is drained by the inclined plates 13 on both sides. Open the switching plate 14, so that gravel of different sizes can be classified and collected through the diversion plate 15, so that the gravel sizes are classified differently, and there is no need for workers to manually classify them. The gravel screened by the filter plate 4 can be discharged through the discharge funnel 17 at the bottom of the screening box 1.

[0024] The working principle of the utility model: First, turn on the vibration motor 12, so that the vibration motor 12 drives the connecting plate 3 to vibrate, thereby driving the filter plate 4 to vibrate, which is convenient for vibrating and screening the incoming gravel. Open the baffle 16 at the top of the screening box 1, and add the gravel to be screened into the screening box 1 through the top of the screening box 1. The gravel entering the screening box 1 is drained by the inclined plates 13 on both sides;

[0025] When the gravel contacts the filter plate 4, the vibration motor 12 drives the connecting plate 3 to vibrate. The connecting plate 3 drives the filter plate 4 to vibrate together. The spring 11 on the connecting plate 3 enables the connecting plate 3 to vibrate inside the inclined groove. The two filter plates 4 provided can perform secondary screening on the gravel, so that gravel of different sizes can be filtered during the screening process. The screened gravel of different sizes slides to one side of the switching plate 14 through the inclined filter plate 4. Open the switching plate 14, so that gravel of different sizes can be classified and collected through the diversion plate 15, so that the gravel sizes are classified differently, and there is no need for workers to manually classify them. The gravel screened by the filter plate 4 can be discharged through the discharge funnel 17 at the bottom of the screening box 1;

[0026] Then when the filter plate 4 needs to be disassembled from the connecting plate 3, rotate the rotating rod 7 at the top of the fixing plate, separate the rotating rod 7 from the fixing groove 5, and no longer connect and fix the movable plate 6. Open the movable plate 6, and separate the clamping block connecting the movable plate 6 and the filter plate 4 from the clamping groove 8, and no longer connect and fix the filter plate 4. Drive the filter plate 4 to be taken out from the connecting groove inside the connecting plate 3 through the handle 9 on the surface of the filter plate 4, which is convenient for disassembling and installing the filter plate 4, avoids the problem that the traditional filter plate 4 is fixedly installed and difficult to disassemble, and speeds up the disassembly speed of the filter plate 4.

[0027] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A grit screening device, comprising a screening box (1), characterized in that: One side of the screening box (1) is connected with a box door (2) through a hinge. Two vibration mechanisms are arranged on the inner wall of the screening box (1). A connecting plate (3) is arranged inside the screening box (1), and a connecting mechanism is arranged inside the connecting plate (3). The connecting mechanism includes a connecting groove opened inside the connecting plate (3). A filter plate (4) is clamped inside the connecting groove. Two fixing grooves (5) are opened on the surface of the connecting plate (3). Moving plates (6) are arranged at the tops of the two fixing grooves (5). The moving plates (6) are movably connected to the connecting plate (3). A rotating rod (7) is threadedly connected to the top of the moving plate (6). One end of the rotating rod (7) extends into the fixing groove (5), and the rotating rod (7) is threadedly connected to the fixing groove (5). A clamping block is arranged at the bottom of the moving plate (6). A clamping groove (8) is opened on the surface of the filter plate (4), and the clamping block is connected to the clamping groove (8).

2. The gravel screening device according to claim 1, characterized in that: Two handles (9) are arranged at the top of the filter plate (4). The shapes of the handles (9) are both U-shaped, and a plurality of filter holes (10) are opened on the surfaces of the handles (9).

3. A gravel screening device according to claim 1, characterized in that: The vibration mechanism includes inclined grooves opened on both sides of the inner wall of the screening box (1). Both of the two inclined grooves are connected to the connecting plate (3). A plurality of springs (11) are arranged on both sides of the connecting plate (3).

4. A gravel screening device according to claim 1, characterized in that: A vibration motor (12) is arranged at the bottom of the connecting plate (3), and the bottom of the vibration motor (12) is connected to the inclined groove.

5. A grit screening device according to claim 1, characterized in that: Two inclined plates (13) are arranged on both sides of the inner wall of the screening box (1). A discharge port is opened on one side of each of the two inclined plates (13). A switching plate (14) is movably connected inside the two discharge ports. A diversion plate (15) is arranged on one side of the switching plate (14), and the diversion plate (15) is connected to the screening box (1).

6. The gravel screening device according to claim 1, characterized in that: A baffle (16) is connected to the top of the screening box (1) through a hinge. A discharge funnel (17) is arranged at the bottom of the screening box (1), and one end of the discharge funnel (17) extends to the outside of the screening box (1).

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