Concrete gravel separation device

Abstract

The utility model discloses a sand and stone separating device for concrete, and relates to the technical field of sand and stone separation. The screening device comprises a screening box, a screen mesh and a spiral feeding assembly, and further comprises a supporting piece, a rotating seat, a transmission support and a positioning mechanism. By rotating the screw rod, the screw rod drives the positioning inserting plate and the sliding rod to move downwards, the positioning inserting plate is used for inserting and limiting the front end of the screen, the screen is fixed in the screening box, the sliding rod slides in the sliding sleeve, and therefore the transmission plate is driven to rotate downwards along the fixing plate; a transmission plate applies downward pressure to a rotary drum located on the outer side of a screening box, a rotary disc is pushed to rotate, a connecting rod and the rotary drum located in the screening box are overturned upwards, and therefore a supporting plate, a supporting block and a supporting rod are pushed to integrally move upwards till the supporting rod is attached to the bottom face of a screen, auxiliary supporting on the screen face is achieved, and the problem that the screen face is damaged due to long-term work is solved. And the phenomenon that the middle part of the net surface is lack of support due to large-area suspension is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of sand and gravel separation, in particular to a concrete sand and gravel separation device. Background Art

[0002] During the concrete production and construction process, a large amount of residual concrete will be generated when cleaning equipment such as mixer trucks and mixing station hosts. In order to save resources and reduce costs, concrete sand and gravel separation and recovery equipment will be used to separate the sand and stone in the waste concrete so that they can be recycled and reused.

[0003] The existing concrete sand and gravel separation device includes a vibrating screening unit, which uses the difference in the aperture of the screen to separate the sand and gravel. The screen is the component that directly bears the impact of the material, and its fixing method is mainly to fix its edge to the support frame through bolts, pressure strips or welding. This makes the connection and fixing points between the edge of the screen and the frame bear the most concentrated force. Due to long-term high-stress work, the connection is very likely to tear and break. The large area in the middle of the screen is in a suspended state, lacking effective support, and is very likely to undergo plastic deformation, causing the entire screen to sag. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a concrete sand and gravel separation device to solve the problem that the screen lacks support and is prone to disconnection or deformation and concavity due to long-term use.

[0005] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions: a concrete sand and gravel separation device, including a screening box, a screen and a spiral feeding assembly, and also including a lifting member, a rotating seat, a transmission bracket and a positioning mechanism. The screen is slidably plugged into the interior of the screening box, the spiral feeding assembly is arranged at the bottom end of the screening box, the rotating seat is rotatably installed on the screening box, the lifting member is slidably installed at one end of the rotating seat and is located inside the screening box, and the moving end of the lifting member is corresponding to the screen, the transmission bracket is fixedly installed on the front side of the screening box, and the rotating end of the transmission bracket contacts the other end of the rotating seat, the positioning mechanism is installed on the front side of the screening box, and the bottom end of the positioning mechanism is slidably plugged into the screen, and the left and right ends of the positioning mechanism are slidably connected to the rotating end of the transmission bracket.

[0006] The supporting member includes a supporting block and a supporting rod. The supporting rod is fixedly installed on the top of the supporting block. The supporting rod is inclined and is located below the screen and corresponding to the screen.

[0007] The supporting member also includes a support plate and a long hole. The left and right ends of the support plate are provided with long holes. The long holes are slidably connected to one end of the rotating seat. The support block is fixedly installed on the top of the support plate.

[0008] The rotating seat includes a turntable, a connecting rod and a rotating drum. The turntable is rotatably mounted on the screening box. The connecting rod is fixedly mounted on the side of the turntable and arranged radially along the turntable. The rotating drum is rotatably mounted on the free end of the connecting rod.

[0009] There are two groups of connecting rods and rotating drums. One group is located inside the screening box, and the rotating drum is slidably connected to the supporting member. The other group is located outside the screening box, and the rotating drum is located below the rotating end of the transmission bracket.

[0010] The transmission bracket includes a fixed plate, a transmission plate and a sliding sleeve. The fixed plate is fixedly installed on the front side of the screening box, the transmission plate is rotatably installed on one side of the fixed plate, and the sliding sleeve is fixedly installed on the transmission plate.

[0011] The positioning mechanism includes a screw, a positioning plug and a sliding rod. The screw is threadedly installed on the front side of the screening box. The positioning plug is rotatably installed on the bottom end of the screw and fits with the front side of the screening box. There are two groups of sliding rods, which are fixedly installed on the left and right sides of the positioning plug.

[0012] The bottom of the positioning plug plate is slidably connected to the front side of the screen, the free end of the slide rod is installed with a limiting ring, the slide rod is slidably installed inside the slide sleeve, and the limiting ring of the slide rod fits the surface of the slide sleeve.

[0013] The beneficial effects of the utility model are as follows:

[0014] When the screen needs to be disassembled and replaced, the support rod can be separated from the screen by rotating the screw in the opposite direction, and the positioning plug plate is separated from the front end of the screen, which is convenient for quick disassembly and assembly of the screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from the first perspective;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from a second viewing angle;

[0017] Figure 3 This is a first partial side sectional schematic diagram of the utility model;

[0018] Figure 4 This is a schematic diagram of the second partial structure of the utility model;

[0019] Figure 5 This is a third partial cross-sectional schematic diagram of the present utility model;

[0020] Figure 6 This is a schematic diagram of the fourth partial structure of the present utility model.

[0021] Figure numerals: 1. Screening box; 2. Screen; 3. Screw feeding assembly; 4. Lifting member; 401. Support block; 402. Support rod; 403. Support plate; 404. Long hole; 5. Rotating seat; 501. Turntable; 502. Connecting rod; 503. Rotating drum; 6. Transmission bracket; 601. Fixed plate; 602. Transmission plate; 603. Sliding sleeve; 7. Positioning mechanism; 701. Screw; 702. Positioning plug plate; 703. Sliding rod. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with specific embodiments. However, people familiar with the art should understand that the detailed description given here in conjunction with the drawings is for better explanation. The structure of the present invention necessarily exceeds these limited embodiments. For some equivalent replacement solutions or common means, they will not be described in detail herein, but they still fall within the scope of protection of this application.

[0023] Figures 1-6 This is the best embodiment of the present invention, Figure 1 -Attached Figure 6 The utility model is further described.

[0024] Refer to the attached Figures 1-6 The concrete sand and gravel separation device includes a screening box 1, a screen 2 and a spiral feeding assembly 3, and also includes a lifting member 4, a rotating seat 5, a transmission bracket 6 and a positioning mechanism 7. The screen 2 is slidably plugged into the interior of the screening box 1, and the spiral feeding assembly 3 is arranged at the bottom end of the screening box 1 and is connected to the discharge port of the screening box 1. The rotating seat 5 is rotatably installed on the screening box 1, and the lifting member 4 is slidably installed on one end of the rotating seat 5 and is located inside the screening box 1, and the moving end of the lifting member 4 is corresponding to the screen 2. The transmission bracket 6 is fixedly installed on the front side of the screening box 1, and the rotating end of the transmission bracket 6 contacts the other end of the rotating seat 5. The positioning mechanism 7 is installed on the front side of the screening box 1, and the bottom end of the positioning mechanism 7 is slidably plugged into the screen 2, and the left and right ends of the positioning mechanism 7 are slidably connected to the rotating end of the transmission bracket 6.

[0025] Specifically, the waste concrete transported to the screening box 1 is separated into sand and gravel by the screen 2, the coarse material rolls down and is discharged from the top of the screen 2, and the fine material passes through the screen 2 and is transported and discharged by the spiral feeding assembly 3. The bottom of the screen 2 is supported by the supporting member 4, and the height of the supporting member 4 is raised by the rotation of the rotating seat 5. The transmission bracket 6 applies pressure to the end of the rotating seat 5 outside the screening box 1 to lift the end inside the screening box 1. The screen 2 is limited and fixed by the downward movement of the positioning mechanism 7, and the rotation of the transmission bracket 6 is controlled.

[0026] The supporting member 4 includes a support block 401 and a support rod 402. The support rod 402 is fixedly installed on the top of the support block 401. The support rod 402 is inclined and is located below the screen 2 and corresponding to it. The support block 401 and the support rod 402 are fixed by bolts.

[0027] Specifically, the inclined support rod 402 is fully fitted with the mesh surface of the screen 2, and the support block 401 and the support rod 402 are connected by bolts, so that the support rod 402 can be easily disassembled, assembled and replaced according to the mesh length of the screen 2.

[0028] The supporting member 4 also includes a support plate 403 and a long hole 404. The long holes 404 are opened at the left and right ends of the support plate 403. The long hole 404 is slidably connected to one end of the rotating seat 5. The support block 401 is fixedly installed on the top of the support plate 403. The support block 401 and the support plate 403 are fixed by bolts.

[0029] Specifically, the long hole 404 allows the rotating drum 503 to slide inside it, thereby pushing the support plate 403 to move upward, driving the support block 401 and the support rod 402 to adjust the height. The support block 401 and the support plate 403 connected by bolts can facilitate the increase of the number of support blocks 401 and support rods 402 according to the mesh width of the screen 2.

[0030] The rotating seat 5 includes a turntable 501, a connecting rod 502 and a rotating drum 503. The turntable 501 is rotatably installed on the screening box 1. The connecting rod 502 is fixedly installed on the side of the turntable 501 and is arranged along the radial direction of the turntable 501. The rotating drum 503 is rotatably installed on the free end of the connecting rod 502. There are two groups of rotating seats 5, which are symmetrically arranged on the left and right sides of the screening box 1.

[0031] Specifically, by rotating the turntable 501 on the surface of the screening box 1, the pressure on one end thereof is transmitted to the other end, causing it to lift upward. By rotating the rotating drum 503, the two ends of the rotating seat 5 can slide relative to the supporting member 4 and the transmission bracket 6 respectively.

[0032] Two connecting rods 502 are arranged at intervals around the rotating seat 5, and the rotating drum 503 corresponds to the connecting rods 502 one by one. One group of connecting rods 502 is located inside the screening box 1, and the rotating drum 503 is slidingly connected to the long hole 404. The other group of connecting rods 502 is located outside the screening box 1, and the rotating drum 503 is below the free end of the transmission plate 602.

[0033] Specifically, the rotating drum 503 outside the screening box 1 is pressed down by the transmission plate 602, which is transmitted through the connecting rod 502 connected to it, driving the turntable 501 to rotate on the surface of the screening box 1, and then causing the connecting rod 502 and the rotating drum 503 located inside the screening box 1 to flip upward, causing the rotating drum 503 to slide inside the long hole 404, pushing the supporting member 4 to move upward as a whole.

[0034] The transmission bracket 6 includes a fixed plate 601, a transmission plate 602 and a sliding sleeve 603. The fixed plate 601 is fixedly installed on the front side of the screening box 1, and the transmission plate 602 is rotatably installed on one side of the fixed plate 601. A pressure plate is fixedly installed on the free end of the transmission plate 602, and the pressure plate is located above the rotating drum 503 on the corresponding side. The sliding sleeve 603 is fixedly installed on the transmission plate 602, and the sliding sleeve 603 and the sliding rod 703 are slidingly plugged in. There are two groups of transmission brackets 6, and they are symmetrically arranged about the positioning mechanism 7.

[0035] Specifically, by connecting the sleeve 603 with the positioning mechanism 7, the positioning mechanism 7 drives the sleeve 603 and the transmission plate 602 to rotate, and controls the pressure plate of the transmission plate 602 to apply pressure to the end of the rotating seat 5 outside the screening box 1. The two groups of transmission brackets 6 drive the two groups of rotating seats 5 to flip synchronously, so that the supporting member 4 as a whole can move up smoothly.

[0036] The positioning mechanism 7 includes a screw 701, a positioning plug plate 702 and a slide rod 703. The screw 701 is threadedly installed on the front side of the screening box 1. The positioning plug plate 702 is rotatably installed on the bottom end of the screw 701 and fits with the front side of the screening box 1. There are two groups of slide rods 703, which are fixedly installed on the left and right sides of the positioning plug plate 702.

[0037] Specifically, the screw 701 rotates on the front side of the screening box 1, so that the positioning plate 702 moves up and down along the front side of the screening box 1, and the positioning plate 702 is inserted into the jack at the front end of the screen 2 to limit and fix the screen 2. The sliding rod 703 slides inside the sliding sleeve 603 to control the transmission plate 602 to flip.

[0038] The bottom of the positioning plug plate 702 is slidably connected to the front side of the screen 2, and a limiting ring is installed at the free end of the slide rod 703. The slide rod 703 is slidably installed inside the slide sleeve 603, and the limiting ring of the slide rod 703 fits the surface of the slide sleeve 603.

[0039] Specifically, the limiting ring of the sliding rod 703 allows the sliding rod 703 to slide more stably inside the sliding sleeve 603 during the process of the sliding rod 703 driving the sliding sleeve 603 to flip.

[0040] In summary, when the present invention is in use, the staff inserts the screen 2 into the interior of the screening box 1, and then rotates the screw 701 to drive the positioning plug plate 702 to fit the front side of the screening box 1 and move downward until the positioning plug plate 702 passes through the front end of the screen 2, completing the limit fixation of the screen 2. At this time, the pressure plate of the transmission plate 602 is in a horizontal state, and the support rod 402 is located below the screen 2. The screw 701 is continued to be rotated so that the positioning plug plate 702 drives the sliding rod 703 to slide inside the sliding sleeve 603, and the sliding sleeve 603 drives the transmission plate 602 to rotate along the fixed plate 601. The pressure plate of the transmission plate 602 presses the rotating drum 503 located outside the screening box 1 downward, and is driven by the connecting rod 502 connected thereto, so that the turntable 501 rotates on the surface of the screening box 1. 01 drives the connecting rod 502 and the rotating drum 503 inside the screening box 1 to lift upward, so that the rotating drum 503 slides inside the long hole 404, pushing the support plate 403 to move upward, driving the support block 401 and the support rod 402 on its surface to adjust the height until the top surface of the support rod 402 is in contact with the bottom surface of the screen 2, thereby achieving auxiliary support for the screen 2. When separating concrete sand and gravel, the screen 2 is subjected to the impact of falling materials, part of which is transmitted to the connection between its mesh surface and the frame, and part is transmitted to the support rod 402, so that the service life of the screen 2 is extended. When the screen 2 needs to be disassembled and assembled, the screw 701 is rotated in the opposite direction to make the positioning plug plate 702 detach from the front end of the screen 2, and the support rod 402 is away from the bottom of the screen 2, so that the screen 2 can be quickly disassembled and assembled.

[0041] The above description is merely a preferred embodiment of the present invention and does not constitute any other limitation to the present invention. Any person skilled in the art may utilize the above-disclosed technical content to modify or remodel the present invention into equivalent embodiments. However, any simple modifications, equivalent variations, and modifications to the above embodiments that do not depart from the technical content of the present invention and are based on the technical essence of the present invention shall still fall within the scope of protection of the present invention.

Claims

1. A concrete sand and gravel separation device, comprising a screening box (1), a screen (2) and a spiral feeding assembly (3), characterized in that: The invention also includes a supporting member (4), a rotating seat (5), a transmission bracket (6) and a positioning mechanism (7), wherein the screen (2) is slidably plugged into the interior of the screening box (1), the spiral feeding assembly (3) is arranged at the bottom end of the screening box (1), the rotating seat (5) is rotatably mounted on the screening box (1), the supporting member (4) is slidably mounted on one end of the rotating seat (5) and is located inside the screening box (1), and the movable end of the supporting member (4) is correspondingly arranged with the screen (2), the transmission bracket (6) is fixedly mounted on the front side of the screening box (1), and the rotating end of the transmission bracket (6) is in contact with the other end of the rotating seat (5), the positioning mechanism (7) is mounted on the front side of the screening box (1), and the bottom end of the positioning mechanism (7) is slidably plugged into the screen (2), and the left and right ends of the positioning mechanism (7) are slidably connected with the rotating end of the transmission bracket (6).

2. The concrete sand and gravel separation device according to claim 1, characterized in that: The supporting member (4) comprises a supporting block (401) and a supporting rod (402), wherein the supporting rod (402) is fixedly mounted on the top of the supporting block (401), and the supporting rod (402) is arranged in an inclined manner and is located below the screen (2) and corresponding thereto.

3. The concrete sand and gravel separation device according to claim 2, characterized in that: The supporting member (4) further comprises a supporting plate (403) and a long hole (404). The long holes (404) are provided at both left and right ends of the supporting plate (403). The long holes (404) are slidably connected to one end of the rotating seat (5). The supporting block (401) is fixedly mounted on the top of the supporting plate (403).

4. The concrete sand and gravel separation device according to claim 1, characterized in that: The rotating seat (5) comprises a rotating disc (501), a connecting rod (502) and a rotating drum (503); the rotating disc (501) is rotatably mounted on the screening box (1); the connecting rod (502) is fixedly mounted on the side of the rotating disc (501) and arranged along the radial direction of the rotating disc (501); and the rotating drum (503) is rotatably mounted on the free end of the connecting rod (502).

5. The concrete sand and gravel separation device according to claim 4, characterized in that: The connecting rods (502) and the rotating drums (503) are provided in two groups, one group being located inside the screening box (1) and the rotating drums (503) being slidably connected to the supporting member (4), and the other group being located outside the screening box (1) and the rotating drums (503) being located below the rotating end of the transmission bracket (6).

6. The concrete sand and gravel separation device according to claim 1, characterized in that: The transmission bracket (6) comprises a fixed plate (601), a transmission plate (602) and a sliding sleeve (603), wherein the fixed plate (601) is fixedly mounted on the front side of the screening box (1), the transmission plate (602) is rotatably mounted on one side of the fixed plate (601), and the sliding sleeve (603) is fixedly mounted on the transmission plate (602).

7. The concrete sand and gravel separation device according to claim 1, characterized in that: The positioning mechanism (7) comprises a screw (701), a positioning plug plate (702) and a slide rod (703), wherein the screw (701) is threadedly mounted on the front side of the screening box (1), the positioning plug plate (702) is rotatably mounted on the bottom end of the screw (701) and fits with the front side of the screening box (1), and the slide rod (703) is provided in two groups and is fixedly mounted on the left and right sides of the positioning plug plate (702).

8. The concrete sand and gravel separation device according to claim 7, characterized in that: The bottom of the positioning plug plate (702) is slidably connected to the front side of the screen (2), and a limiting ring is installed at the free end of the slide rod (703). The slide rod (703) is slidably installed inside the slide sleeve (603), and the limiting ring of the slide rod (703) fits the surface of the slide sleeve (603).

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