Screening device for construction waste soil

Abstract

The utility model relates to the technical field of building muck screening devices, in particular to a screening device for building muck, which comprises a shell, a mounting shell and four electric hydraulic rods, and further comprises a placing frame, two pressing plates are arranged on the inner side of the placing frame, and the upper sides of the pressing plates are connected with the shaft ends of the electric hydraulic rods; a flow guide plate is mounted on the inner side of the shell; four feed ports; the locatable rotating unit is located between the placement frame and the mounting shell, and the locatable rotating unit can rotate the placement frame to be used for throwing the muck and increase the stability of positioning of the placement frame; and the vibration unit is located between the multiple filter screens and the shell, and the vibration unit can make the multiple filter screens vibrate at the same time. By arranging the placing frame, the mounting shell and the positionable rotating unit, the placing frame can be positioned and supported during machining, pressure cannot be directly transmitted to a power component, the stability of the device is improved, and the service life of the device is prolonged.

Description

Technical Field

[0001] This utility model relates to the technical field of construction waste screening devices, and in particular to a screening device for construction waste. Background Technology

[0002] Construction waste refers to various wastes generated during the construction process, including bricks, concrete, and soil. This waste mainly originates from building demolition, construction, and renovation processes, and is abundant and diverse in type.

[0003] In the prior art, according to Chinese patent application number CN202320312255.6, a multifunctional construction waste screening device is disclosed, which includes a box body. A cylinder is fixedly installed on the top of the box body. The output shaft of the cylinder passes through the top wall of the box body and is fixedly connected to a pressure plate. Two baffles are hinged to the inner walls of both sides of the box body. Electric push rods are hinged to the inner walls of both sides of the box body below the two baffles. The output end of the electric push rod is hinged to the bottom of the baffle. An inclined filter plate is fixedly connected to the inner side of the box body. The filter plate has multiple filter holes. A discharge port is opened on the side wall of the box body. The discharge port extends from the bottom end of the filter plate. The crushed construction waste falls onto the filter plate and moves downward along the surface of the filter plate. Cement blocks fall through the multiple filter holes on the filter plate. Rebar cannot pass through the filter holes and slides out of the discharge port along the surface of the filter plate. The rebar falls into the first collection box, where it is collected. Cement blocks fall into the second collection box, where they are collected.

[0004] In the prior art, according to Chinese patent application number CN202320312255.6, a multifunctional construction waste screening device is disclosed. This device uses an electric pusher to press against the lower side of a baffle. When processing the construction waste on the upper side of the baffle, pressure is applied to the baffle, and this pressure is transmitted to the electric pusher, which can easily damage the pusher and affect the device's service life. Therefore, we propose a screening device for construction waste to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies. According to Chinese Patent Application No. CN202320312255.6, a multi-functional construction waste screening device is disclosed. In this device, an electric push rod pushes against the lower side of a baffle from below. When processing the waste on the upper side of the baffle, pressure is applied to the baffle and transmitted to the electric push rod, which can easily damage the electric push rod and affect the service life of the device. Therefore, this utility model proposes a screening device for construction waste.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design a screening device for construction waste, comprising a housing, a mounting shell, and four electro-hydraulic rods. The mounting shell is mounted on the upper side of the housing, a rear cover is mounted on the rear side of the housing, and a top cover is mounted on the upper side of the mounting shell. The electro-hydraulic rods are mounted on the top cover, with their shaft ends passing through the top cover. The device also includes:

[0008] A placement frame is located inside the mounting housing. Two pressure plates are provided inside the placement frame, and the upper side of the pressure plates is connected to the shaft end of the electric hydraulic rod.

[0009] A plurality of filter screens are provided. A guide plate is installed on the inner side of the housing. The guide plate is located below the filter screens. The front side of the housing is provided with a through hole A and a through hole B. The guide plate is located inside the through hole B and the filter screen is located inside the through hole A.

[0010] Four inlets are provided, and sliding holes A are provided on both the left and right sides of the mounting shell. The inlets can slide inside the sliding holes A.

[0011] A positionable rotating unit is located between the placement frame and the mounting shell. The positionable rotating unit can rotate the placement frame for dumping slag and increase the stability of the placement frame's positioning.

[0012] A vibration unit is located between several filter screens and the outer shell, and the vibration unit can make several filter screens vibrate simultaneously.

[0013] Preferably, the positionable rotating unit includes an A motor and four A electric push rods. Positioning shafts are fixed on both the front and rear sides of the placement frame. Rotation holes are provided on both the front and rear sides of the mounting shell. The positioning shafts are rotatable within the rotation holes. The A motor is located on the front side of the mounting shell and mounted on the upper side of the shell. The A motor shaft is connected to the positioning shafts. An A support plate rotates on the outer side of the positioning shaft. The placement frame is located between two A support plates. The A support plates are connected to the inner side of the mounting shell. B support plates are fixed on the left and right sides of the two A support plates. A clamping plate is provided on the side of the B support plate facing the placement frame. Two A through holes are provided on one side of the B support plate. The shafts of the A electric push rods pass through the A through holes and connect to the clamping plate. Two mounting holes are provided on the left and right sides of the mounting shell. The A electric push rods are mounted on one side of the clamping plate. Inside the mounting hole, A positioning blocks are fixed on both the front and rear sides of the clamping plate. The A positioning blocks are located below the A support plate. A B through hole is provided on one side of the A positioning block, and an L-shaped limiting plate is provided on the outer side of the A positioning block. The L-shaped limiting plate is connected to the A support plate and the B support plate. A positioning rod slides inside the B through hole and is connected to the L-shaped limiting plate and the B support plate. Limiting strips are provided at both ends of the lower side of the placement frame and are connected to the clamping plate. A driving plate is connected to the upper side of the clamping plate, and an auxiliary plate is connected to the upper side of the driving plate. The auxiliary plate is located above the B support plate. C through holes are provided on the left and right sides of the mounting shell. The auxiliary plate can slide inside the C through holes. The feed port is connected to the upper side of the auxiliary plate. The A motor and the A electric push rod are connected to the power supply and controller through wires.

[0014] By adopting the above structure, the placement frame can be positioned and supported, allowing it to withstand more pressure when crushing the slag inside, thus improving the service life of the device.

[0015] Preferably, a reinforcing strip is fixed between the limiting strip and the clamping plate.

[0016] By adopting the above structure, the reinforcing strip improves the connection strength between the limiting strip and the clamping plate.

[0017] Preferably, the A support plate has two A sliding grooves on one side, and the clamping plate is connected to B positioning blocks on both the front and rear sides, and the B positioning blocks can slide inside the A sliding grooves.

[0018] By adopting the above structure, the B positioning block plays a guiding and positioning role for the clamping plate, making the movement of the clamping plate more stable.

[0019] Preferably, the clamping plate has an A positioning groove on one side, and positioning strips are fixed on both the left and right sides of the placement frame, and the positioning strips can slide inside the A positioning groove.

[0020] By employing the above structure, the positioning strip allows the clamping plate to position the placement frame.

[0021] Preferably, the vibration unit includes four B motors, a C-shaped mounting plate slides on the outer side of the filter screen, two connecting blocks are fixed to the rear side of the filter screen, the connecting blocks are detachably connected to the C-shaped mounting plates by bolts, three guide plates are connected to the left and right sides of several C-shaped mounting plates, three guide holes are provided on the left and right sides of the outer casing, the guide plates can slide inside the guide holes, connecting plates are provided on the left and right sides of the outer casing, the connecting plates are fixedly connected to the guide plates, a cam is provided on the lower side of the connecting plate, the cam is fixedly connected to the outer casing, a mounting block is installed on the lower side of the B motor, the shaft end of the B motor is connected to the cam, the mounting block is connected to the outer casing, and the B motor is connected to the power supply and controller through wires.

[0022] By adopting the above structure, the vibration unit can vibrate together with multiple filters.

[0023] Preferably, the filter screen has two baffles on its upper side, and the C-shaped mounting plate has a sliding groove at its upper front end, with the baffles connected to the C-shaped mounting plate.

[0024] By adopting the above structure, the baffle can shield the excavated soil, reducing the probability of the excavated soil falling onto the C-shaped mounting plate and improving the reliability of operation.

[0025] Preferably, the filter mesh has diamond-shaped pores.

[0026] By adopting the above structure, the diamond-shaped filter holes can reduce the probability of filter clogging.

[0027] The present invention provides a screening device for construction waste, which has the following advantages:

[0028] 1. By setting up a placement frame, mounting shell, and a positionable rotating unit, the placement frame can rotate automatically to send the processed slag to the lower filter screen. During processing, the placement frame can be positioned and supported, and the pressure is not directly transmitted to the power components, which improves the stability and service life of the device.

[0029] 2. By setting up a filter screen and a vibration unit, the slag can be automatically screened in multiple stages, which improves the quality of screening. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the front three-dimensional structure of a screening device for construction waste proposed in this utility model.

[0031] Figure 2 The present utility model proposes Figure 1A magnified three-dimensional structural diagram of a portion of area A in the middle;

[0032] Figure 3 The present utility model proposes Figure 1 A magnified three-dimensional structural diagram of a portion of area B in the middle section;

[0033] Figure 4 This is a three-dimensional cross-sectional view of the left side of a screening device for construction waste proposed in this utility model.

[0034] Figure 5 The present utility model proposes Figure 4 A magnified three-dimensional structural diagram of a portion of the central C area;

[0035] Figure 6 This is a three-dimensional cross-sectional view of the right side of a screening device for construction waste proposed in this utility model.

[0036] Figure 7 The present utility model proposes Figure 6 A magnified three-dimensional structural diagram of a portion of the central D region;

[0037] Figure 8 This is a three-dimensional cross-sectional view of the rear side of a screening device for construction waste proposed in this utility model.

[0038] Figure 9 The present utility model proposes Figure 8 A magnified three-dimensional structural diagram of a portion of the central E region;

[0039] Figure 10 The present utility model proposes Figure 8 A magnified three-dimensional structural diagram of a portion of the central F region.

[0040] In the diagram: 1. Outer shell; 2. Mounting shell; 3. Electro-hydraulic rod; 4. Placement frame; 5. Filter screen; 6. Feed inlet; 7. Positionable rotating unit; 71. Motor A; 72. Electric push rod A; 73. Positioning shaft; 74. Support plate A; 75. Support plate B; 76. Clamping plate; 77. Positioning block A; 78. L-shaped limit plate; 79. Positioning rod; 710. Limiting strip; 711. Driving plate; 712. Auxiliary plate; 713. Reinforcing strip; 714. Positioning block B; 715. Positioning strip; 8. Vibration unit; 81. Motor B; 82. Mounting plate C; 84. Guide plate; 85. Connecting plate; 86. Cam; 87. Mounting block; 88. Baffle; 9. Rear cover; 10. Top cover; 11. Pressure plate; 12. Guide plate. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0042] Reference Figure 1-10 A screening device for construction waste includes a housing 1, a mounting housing 2, and four electric hydraulic rods 3. The mounting housing 2 is installed on the upper side of the housing 1. A rear cover 9 is installed on the rear side of the housing 1. The rear cover 9 can be removed to facilitate the maintenance of the internal parts of the housing 1. A top cover 10 is installed on the upper side of the mounting housing 2. The top cover 10 can be removed to facilitate the maintenance of the internal parts of the mounting housing 2. The electric hydraulic rods 3 are installed on the top cover 10 and the shaft end of the electric hydraulic rod 3 passes through the top cover 10. The device also includes: a placement frame 4, several filter screens 5, four feed inlets 6, a positionable rotating unit 7, and a vibration unit 8.

[0043] The placement frame 4 is located inside the mounting shell 2. Two pressure plates 11 are provided inside the placement frame 4. The upper side of the pressure plate 11 is connected to the shaft end of the electric hydraulic rod 3. The electric hydraulic rod 3 moves the pressure plate 11 up and down, allowing the pressure plate 11 to crush the slag inside the placement frame 4. At the same time, the lower side of the pressure plate 11 has multiple sharp soil-breaking blades, which can better crush the slag and facilitate subsequent screening, thus improving processing efficiency. The mounting shell 2 has sliding holes A on both the left and right sides. The feed inlet 6 can slide inside the sliding holes A. A telescopic pipe can be installed inside the feed inlet 6 to better deliver the slag to the center of the placement frame 4 for crushing.

[0044] The positioning and rotating unit 7 is located between the placement frame 4 and the mounting shell 2. This unit allows the placement frame 4 to be rotated for dumping slag and increases the stability of its positioning. The positioning and rotating unit 7 includes an A motor 71 and four A electric push rods 72. Positioning shafts 73 are fixed to both the front and rear sides of the placement frame 4. Rotation holes are provided on both the front and rear sides of the mounting shell 2. The positioning shafts 73 can rotate within these holes. A support plate 74 rotates on the outer side of the positioning shafts 73. The placement frame 4 is located between two A support plates 74, which are connected to the inner side of the mounting shell 2. Motor A 71 is located on the front side of the mounting shell 2 and is mounted on the upper side of the outer shell 1. The shaft end of motor A 71 is connected to the positioning shaft 73. Motor A 71 is connected to the power supply and controller through wires. Motor A 71 rotates between two support plates 74 with the placement frame 4 through the positioning shaft 73. The rotation of the placement frame 4 allows the crushed slag inside the machine to fall onto the uppermost filter screen 5, which improves the processing efficiency of the device. At the same time, the support plates 74 and the mounting shell 2 work together with the positioning shaft 73 to support the placement frame 4, which improves the stability of the support.

[0045] Two A support plates 74 are fixed to B support plates 75 on their left and right sides. A clamping plate 76 is provided on the side of the B support plate 75 facing the placement frame 4. An A positioning groove is provided on one side of the clamping plate 76. Positioning strips 715 are fixed to both sides of the placement frame 4, and the positioning strips 715 can slide inside the A positioning grooves. Two A sliding grooves are provided on one side of the A support plate 74. B positioning blocks 714 are connected to both the front and rear sides of the clamping plate 76. The B positioning blocks 714 can slide inside the A sliding grooves, and they guide and position the clamping plate 76, making its movement more stable. A positioning blocks 77 are fixed to both the front and rear sides of the clamping plate 76. The A positioning blocks 77 are located below the A support plate 74. A B through hole is provided on one side of the A positioning block 77, and an L-shaped limiting plate 78 is provided on the outer side of the A positioning block 77. The L-shaped limiting plate 78 is connected to the A support plate 74 and the B support plate 75. A positioning rod 79 slides inside the B through hole. The positioning rod 79 is connected to the L-shaped limiting plate 78 and the B support plate 75. The left and right ends of the lower side of the placement frame 4 are provided with limiting strips 710. The limiting strips 710 are connected to the clamping plate 76. A reinforcing strip 713 is fixed between the limiting strips 710 and the clamping plate 76. The reinforcing strip 713 improves the connection strength between the limiting strips 710 and the clamping plate 76. The clamping plate 76 moves towards the placement frame 4 and limits the two sides of the placement frame 4, preventing the placement frame 4 from rotating. The positioning rod 79, the L-shaped limiting plate 78, the A positioning block 77 and the B positioning block 714 support the clamping plate 76. At the same time, the limiting strip 710 enters the lower side of the placement frame 4 and supports it, so that the placement frame 4 can withstand the force when crushing slag, improving the stability and service life of the device. When the placement frame 4 needs to rotate, the clamping plate 76 can move the corresponding parts away from the placement frame 4.

[0046] A driving plate 711 is connected to the upper side of the clamping plate 76, and an auxiliary plate 712 is connected to the upper side of the driving plate 711. The auxiliary plate 712 is located on the upper side of the B support plate 75. C through holes are provided on the left and right sides of the mounting shell 2. The auxiliary plate 712 can slide inside the C through holes. The clamping plate 76 will move together with the feed port 6 through the driving plate 711 and the auxiliary plate 712, so that the feed port 6 moves to the edge of the placement frame 4 for easy feeding. When the placement frame 4 rotates, the clamping plate 76 moves the feed port 6 away from the placement frame 4 to avoid interfering with the rotation of the placement frame 4.

[0047] The feed inlet 6 is connected to the upper side of the auxiliary plate 712. The B support plate 75 has two A through holes on one side. The shaft end of the A electric push rod 72 passes through the A through holes and is connected to the clamping plate 76. The mounting shell 2 has two mounting holes on the left and right sides. The A electric push rod 72 is installed on one side of the clamping plate 76 and inside the mounting hole. The A electric push rod 72 is connected to the power supply and controller through wires. The A electric push rod 72 can automatically move the clamping plate 76, which improves the automation level of the device and improves the processing efficiency of the device.

[0048] A guide plate 12 is installed inside the outer shell 1. The guide plate 12 is located below the filter screen 5. The filter holes of the filter screen 5 are diamond-shaped. Traditional round holes may cause blockage when screening some irregularly shaped slag particles. Using diamond-shaped holes can reduce the probability of blockage and improve screening efficiency. The front of the outer shell 1 is provided with an A through hole and a B through hole. The guide plate 12 is located inside the B through hole, and the filter screen 5 is located inside the A through hole. Corresponding collection devices are installed in front of the guide plate 12 and the filter screen 5. The guide plate 12 can slide the slag after final screening to the front side for easy collection. The multi-layer filter screen 5 can classify and screen the slag and collect it.

[0049] The vibration unit 8 is located between several filter screens 5 and the outer shell 1. The vibration unit 8 can make several filter screens 5 vibrate simultaneously. The vibration unit 8 includes four B motors 81. A C-shaped mounting plate 82 slides on the outside of the filter screen 5. Two baffles 88 are provided on the upper side of the filter screen 5. A sliding groove is provided at the front end of the upper side of the C-shaped mounting plate 82. The baffles 88 are connected to the C-shaped mounting plate 82. The baffles 88 can block the slag and reduce the probability of slag falling on the C-shaped mounting plate 82, thereby improving the reliability of operation. The filter screen 5 and the C-shaped mounting plate 82 are detachably connected by bolts. The filter screen 5 can be quickly installed in the C-shaped mounting plate 82 and disassembled, which is convenient for the replacement of the filter screen 5.

[0050] Each of the C-shaped mounting plates 82 has three guide plates 84 connected to its left and right sides. The outer casing 1 has three guide holes on its left and right sides, allowing the guide plates 84 to slide within the guide holes. Each of the outer casing 1 has a connecting plate 85 on its left and right sides, which is fixedly connected to the guide plates 84. A cam 86 is located on the lower side of the connecting plate 85 and is fixedly connected to the outer casing 1. A mounting block 87 is mounted on the lower side of the B motor 81. The shaft end of the B motor 81 is connected to the cam 86, and the mounting block 87 is connected to the outer casing 1. The B motor 81 is connected to a power supply and a controller via wires. The B motor 81 rotates the cam 86, allowing the connecting plates 85 to move up and down regularly. This causes the connecting plates 85 to move along with the C-shaped mounting plates 82 via the guide plates 84, resulting in multiple filter screens 5 vibrating together. This reduces the use of vibration sources and improves the cost-effectiveness of the device.

[0051] In the description of this patent, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections or indirect connections through an intermediate medium; they can be internal connections between two components. For those skilled in the art, the specific meaning of the above terms in this patent can be understood according to the specific circumstances.

[0052] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A screening device for construction waste, comprising a housing (1), a mounting shell (2), and four electro-hydraulic rods (3), wherein the mounting shell (2) is mounted on the upper side of the housing (1), a rear cover (9) is mounted on the rear side of the housing (1), a top cover (10) is mounted on the upper side of the mounting shell (2), and the electro-hydraulic rods (3) are mounted on the upper side of the top cover (10) with their shaft ends passing through the top cover (10), characterized in that, Also includes: Placement frame (4), the placement frame (4) is located inside the mounting shell (2), and two pressure plates (11) are provided inside the placement frame (4). The upper side of the pressure plate (11) is connected to the shaft end of the electric hydraulic rod (3). A plurality of filter screens (5), a guide plate (12) is installed on the inner side of the outer shell (1), the guide plate (12) is located on the lower side of the filter screen (5), the front side of the outer shell (1) is provided with a through hole A and a through hole B, the guide plate (12) is located inside the through hole B, and the filter screen (5) is located inside the through hole A; Four feed ports (6) are provided on the left and right sides of the mounting shell (2), and the feed ports (6) can slide inside the sliding holes (A); Positionable rotating unit (7) is located between the placement frame (4) and the mounting shell (2). The positionable rotating unit (7) can rotate the placement frame (4) to put out the slag and increase the stability of the placement frame (4) in positioning. Vibration unit (8) is located between several filter screens (5) and the outer shell (1), and the vibration unit (8) can make several filter screens (5) vibrate simultaneously.

2. The screening device for construction waste according to claim 1, characterized in that, The positionable rotating unit (7) includes an A motor (71) and four A electric push rods (72). Positioning shafts (73) are fixed on both the front and rear sides of the placement frame (4). Rotation holes are provided on both the front and rear sides of the mounting shell (2). The positioning shafts (73) can rotate within the rotation holes. The A motor (71) is located on the front side of the mounting shell (2) and mounted on the upper side of the outer shell (1). The shaft end of the A motor (71) is connected to the positioning shaft (73). An A support plate (74) rotates on the outer side of the positioning shaft (73). The placement frame (4) is located on two... Between the two A support plates (74), the A support plates (74) are connected to the inner side of the mounting shell (2). B support plates (75) are fixed on the left and right sides of the two A support plates (74). A clamping plate (76) is provided on the side of the B support plate (75) facing the placement frame (4). Two A through holes are provided on one side of the B support plate (75). The shaft end of the A electric push rod (72) passes through the A through holes and connects to the clamping plate (76). Two mounting holes are provided on the left and right sides of the mounting shell (2). The A electric push rod (72) is installed on one side of the clamping plate (76) and inside the mounting hole. A positioning block (77) is fixed on both the front and rear sides of the clamping plate (76). The A positioning block (77) is located under the A support plate (74). A B through hole is provided on one side of the A positioning block (77). An L-shaped limiting plate (78) is provided on the outside of the A positioning block (77). The L-shaped limiting plate (78) is connected to the A support plate (74) and the B support plate (75). A positioning rod (79) slides inside the B through hole. The positioning rod (79) is connected to the L-shaped limiting plate (78) and the B support plate (75). Limiting strips are provided on both the left and right sides of the lower side of the placement frame (4). (710), the limiting strip (710) is connected to the clamping plate (76), the upper side of the clamping plate (76) is connected to the driving plate (711), the upper side of the driving plate (711) is connected to the auxiliary plate (712), the auxiliary plate (712) is located on the upper side of the B support plate (75), the mounting shell (2) is provided with C through holes on the left and right sides, the auxiliary plate (712) can slide inside the C through holes, the feed port (6) is connected to the upper side of the auxiliary plate (712), the A motor (71) and the A electric push rod (72) are connected to the power supply and the controller through wires.

3. A screening device for construction waste according to claim 2, characterized in that, A reinforcing strip (713) is fixed between the limiting strip (710) and the clamping plate (76).

4. A screening device for construction waste according to claim 2, characterized in that, The A support plate (74) has two A sliding grooves on one side, and the clamping plate (76) is connected to B positioning blocks (714) on both the front and rear sides. The B positioning blocks (714) can slide inside the A sliding grooves.

5. A screening device for construction waste according to claim 2, characterized in that, The clamp (76) has an A positioning groove on one side, and the placement frame (4) has positioning strips (715) fixed on both the left and right sides. The positioning strips (715) can slide inside the A positioning groove.

6. A screening device for construction waste according to claim 1, characterized in that, The vibration unit (8) includes four B motors (81). A C-shaped mounting plate (82) slides on the outside of the filter screen (5). The filter screen (5) and the C-shaped mounting plate (82) are detachably connected by bolts. Three guide plates (84) are connected to the left and right sides of several C-shaped mounting plates (82). Three guide holes are provided on the left and right sides of the outer shell (1). The guide plates (84) can slide inside the guide holes. Connecting plates (85) are provided on the left and right sides of the outer shell (1). The connecting plates (85) are fixedly connected to the guide plates (84). A cam (86) is provided on the lower side of the connecting plate (85). The cam (86) is fixedly connected to the outer shell (1). A mounting block (87) is installed on the lower side of the B motor (81). The shaft end of the B motor (81) is connected to the cam (86). The mounting block (87) is connected to the outer shell (1). The B motor (81) is connected to the power supply and controller through wires.

7. A screening device for construction waste according to claim 6, characterized in that, The filter screen (5) has two baffles (88) on its upper side, and the C-shaped mounting plate (82) has a sliding groove at its upper front end. The baffles (88) and the C-shaped mounting plate (82) are connected.

8. A screening device for construction waste according to claim 6, characterized in that, The filter screen (5) has diamond-shaped filter holes.

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