Gravel screening device for environment-friendly concrete production

Abstract

The utility model relates to the technical field of concrete production, in particular to a gravel screening device for environment-friendly concrete production, which comprises an environment-friendly concrete screening box, a valve plate transmission component is arranged on the side edge of the environment-friendly concrete screening box, a filter screen is mounted on the inner side of the environment-friendly concrete screening box, and a material guide component is mounted on the side edge of the filter screen; the guide assembly comprises a guide plate, a frame is fixedly mounted on the outer side of the filter screen, a rotating groove is formed in the side edge of the frame, a rotating block is fixedly connected to the rear side of the guide plate and rotationally mounted on the inner side of the rotating groove, a rotating shaft rotationally penetrates through the inner side of the frame, and high-strength torsion springs are fixedly connected between the two ends of the rotating shaft and the environment-friendly concrete screening box; the valve plate transmission assembly comprises a motor. By means of the matching design of the material guiding assembly and the valve plate transmission assembly, residues on the filter screen can be automatically guided out, the automation degree is high, manual labor is saved, and meanwhile production efficiency is improved.

Description

Technical Field

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

[0002] Concrete is a composite material made of cementitious materials, aggregates and water in a certain proportion, which is hardened after mixing. The most common concrete uses cement as the cementitious material and sand and stone as aggregates. It is widely used in civil engineering.

[0003] A sand and gravel screening device for concrete production proposed with reference to the utility model patent with authorized announcement number CN219401085U includes a box body, a box body and a filter screen, the filter screen is arranged on the box body, the box body is provided with a driving mechanism and a telescopic mechanism, the box body is arranged on the telescopic mechanism, the driving mechanism is used to drive the telescopic mechanism to vibrate, the top of the box body is connected to a feed hopper, a box door is embedded in the front of the box body, the inner bottom wall of the box body is an inclined surface, the front of the box body is provided with a discharge hole located below the box door, and the front of the box body is fixedly installed with a discharge hopper.

[0004] When screening the sand and gravel in the above patent, the sand and gravel remaining on the filter net need to be manually opened to dump the sand and gravel, which is labor-intensive and inconvenient to use. Therefore, we propose a sand and gravel screening device for environmentally friendly concrete production to solve the above problem. Utility Model Content

[0005] The utility model aims to solve the shortcomings of the prior art and proposes a sand and gravel screening device for environmentally friendly concrete production.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A sand and gravel screening device for environmentally friendly concrete production comprises an environmentally friendly concrete screening box, a valve plate transmission assembly is arranged on the side of the environmentally friendly concrete screening box, a filter screen is installed on the inner side of the environmentally friendly concrete screening box, and a material guide assembly is installed on the side of the filter screen; the material guide assembly comprises a material guide plate, a frame is fixedly installed on the outer side of the filter screen, a rotation groove is opened on the side of the frame, a rotating block is fixedly connected to the rear side of the material guide plate, the rotating block is rotatably installed on the inner side of the rotating groove, a rotating shaft is rotatably inserted through the inner side of the frame, and high-strength torsion springs are fixedly connected between the two ends of the rotating shaft and the environmentally friendly concrete screening box; the valve plate transmission assembly comprises a motor, a threaded rod is fixedly installed on the output end of the motor, a threaded slider is screwed on the threaded rod, an outer plate is arranged on the side of the threaded slider, an electric telescopic rod is fixedly connected between the outer plate and the threaded slider, and an inner plate is fixedly installed on the inner side of the outer plate.

[0008] Preferably, a circular hole is provided inside the rotating block, a limit key is arranged inside the circular hole, a key slot is provided throughout the rotating shaft, and a sealing rubber plate is clamped and installed between the frame and the guide plate.

[0009] Preferably, an opening and a discharge port are provided on the side wall of the environmentally friendly concrete screening box.

[0010] Preferably, the opening size is matched with the inner panel.

[0011] Preferably, the bottom of the environmentally friendly concrete screening box is arranged to be inclined, and the lowest point of the bottom of the environmentally friendly concrete screening box smoothly connects with the discharge port.

[0012] Preferably, a feeding trough is installed on the upper side of the environmentally friendly concrete screening box, and a vibration motor is fixedly installed on the rear side of the environmentally friendly concrete screening box.

[0013] Preferably, a first mounting plate and a second mounting plate are installed on the side wall of the environmentally friendly concrete screening box, the motor is fixedly installed at the bottom of the first mounting plate, and the threaded rod is screwed and installed between the first mounting plate and the second mounting plate.

[0014] Preferably, a mounting groove is fixedly installed on the inner wall of the environmentally friendly concrete screening box, an inclined block is fixedly installed on the upper side of the mounting groove, and the frame is slidably connected to the inner side of the mounting groove.

[0015] Compared with the related art, the sand and gravel screening device for environmentally friendly concrete production proposed by the utility model has the following beneficial effects:

[0016] The utility model discloses a kind of sand and gravel screening device for environmental protection concrete production, through the cooperation design of the material guide assembly and the valve plate transmission assembly, when the sand and gravel on the filter screen needs to be cleaned, the electric telescopic rod is started to push the inner plate out of the engaging interval with the opening, and the motor is subsequently started to drive the threaded rod to rotate, and then the threaded rod drives the screw-connected sliding block to move upward, thereby driving the outer plate and the inner plate to slide upward, so that the opening is in an open state. During the opening process, the torsional force provided by the high-strength torsion spring causes the material guide plate located at the outer side of the frame to gradually rotate upward. When the inner plate moves to the upper side, the torsional force of the high-strength torsion spring causes the material guide plate to rotate upward by an angle, so that the material guide plate is in a downward tilted state. At this time, under the action of the material guide plate, the sand and gravel remaining on the filter screen can be guided out to the outside of the environmental protection concrete screening box, thereby realizing the automatic guiding effect of the residue on the filter screen, with a high degree of automation, saving manual labor, and also improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the three-dimensional structure of a sand and gravel screening device for environmentally friendly concrete production proposed by the utility model Figure 1 ;

[0018] Figure 2 A schematic diagram of the three-dimensional structure of a sand and gravel screening device for environmentally friendly concrete production proposed by the utility model Figure 2 ;

[0019] Figure 3 This is a cutaway three-dimensional structural schematic diagram of a sand and gravel screening device for environmentally friendly concrete production proposed by the utility model;

[0020] Figure 4 It is a three-dimensional structural schematic diagram of the valve plate transmission assembly;

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the filter screen part;

[0022] Figure 6 This is a three-dimensional disassembly diagram of the filter screen part.

[0023] In the figure: 1. Environmentally friendly concrete screening box; 2. Opening; 3. First mounting plate; 4. Second mounting plate; 5. Valve plate transmission assembly; 51. Motor; 52. Threaded rod; 53. Screw-on slider; 54. Electric telescopic rod; 55. Outer plate; 56. Inner plate; 6. Feeding trough; 7. Filter screen; 71. Frame; 72. Rotating trough; 8. Material guide assembly; 81. Material guide plate; 82. Rotating block; 83. Limit key; 84. Rotating shaft; 85. Keyway; 86. High-strength torsion spring; 87. Sealing rubber sheet; 9. Discharge port; 10. Vibration motor; 11. Mounting slot; 12. Tilt block. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0025] Reference Figure 1-6 , please refer to Figure 1-Figure 6 ,in, Figure 1 A schematic diagram of the three-dimensional structure of a sand and gravel screening device for environmentally friendly concrete production proposed by the utility model Figure 1 ; Figure 2 A schematic diagram of the three-dimensional structure of a sand and gravel screening device for environmentally friendly concrete production proposed by the utility model Figure 2 ; Figure 3 This is a cutaway three-dimensional structural schematic diagram of a sand and gravel screening device for environmentally friendly concrete production proposed by the utility model; Figure 4 It is a three-dimensional structural schematic diagram of the valve plate transmission assembly; Figure 5 It is a schematic diagram of the three-dimensional structure of the filter screen part; Figure 6A sand and gravel screening device for environmentally friendly concrete production includes: an environmentally friendly concrete screening box 1, a valve plate transmission assembly 5 is arranged on the side of the environmentally friendly concrete screening box 1, and a filter screen 7 is installed inside the environmentally friendly concrete screening box 1. It should be noted that the filter screen 7 is slightly inclined, and the lowest point of the inclination intersects with the material guide assembly 8, and then under the action of vibration, the residue on the filter screen 7 will gradually move to the material guide assembly 8, which is convenient for subsequent discharge; the filter screen 7 is installed with a material guide assembly 8 on the side.

[0026] In the present embodiment, the material guide assembly 8 includes a material guide plate 81, a frame 71 is fixedly installed on the outside of the filter screen 7, a rotation groove 72 is opened on the side of the frame 71, a rotating block 82 is fixedly connected to the rear side of the material guide plate 81, the rotating block 82 is rotatably installed on the inner side of the rotating groove 72, a rotating shaft 84 is rotatably inserted into the inner side of the frame 71, and high-strength torsion springs 86 are fixedly connected between the two ends of the rotating shaft 84 and the environmentally friendly concrete screening box 1, a circular hole is opened on the inner side of the rotating block 82, a limit key 83 is arranged on the inner side of the circular hole, a key slot 85 is opened on the rotating shaft 84 through the length, and a sealing rubber plate 87 is clamped and installed between the frame 71 and the material guide plate 81.

[0027] Through the above-mentioned arrangement, the high-strength torsion spring 86 applies a torsional force to the rotating shaft 84. Since the rotating shaft 84 is provided with a keyway 85 which is compatible with the inner limit key 83 of the rotating block 82, the rotating shaft 84 can transmit the torsional force between the rotating block 82 when rotating, and then under the torsional action of the high-strength torsion spring 86, it can drive the guide plate 81 to flip upward, so that the upper side of the guide plate 81 is tilted downward, thereby providing a material guiding function.

[0028] In the present embodiment, the valve plate transmission assembly 5 includes a motor 51, a threaded rod 52 is fixedly mounted on the output end of the motor 51, a threaded slider 53 is screwed on the threaded rod 52, an outer plate 55 is arranged on the side of the threaded slider 53, an electric telescopic rod 54 is fixedly connected between the outer plate 55 and the threaded slider 53, an inner plate 56 is fixedly mounted on the inner side of the outer plate 55, a first mounting plate 3 and a second mounting plate 4 are mounted on the side wall of the environmentally friendly concrete screening box 1, the motor 51 is fixedly mounted on the bottom of the first mounting plate 3, the threaded rod 52 is screwed between the first mounting plate 3 and the second mounting plate 4, an opening 2 and a discharge port 9 are opened on the side wall of the environmentally friendly concrete screening box 1, and the size of the opening 2 is adapted to the inner plate 56.

[0029] Through the above-mentioned arrangement, the electric telescopic rod 54 can control the depth distance between the inner plate 56 and the inner wall of the environmentally friendly concrete screening box 1, and then control the opening and closing state of the inner plate 56 and the opening 2. When the motor 51 rotates, it drives the threaded rod 52 to rotate, and then drives the screw-connected slider 53 to slide up and down through the threaded rod 52. When the screw-connected slider 53 drives the outer plate 55 and the inner plate 56 to slide upward, the automatic opening function of the opening 2 is realized.

[0030] In this embodiment, the bottom of the environmentally friendly concrete screening box 1 is inclined, and the lowest point of the bottom of the environmentally friendly concrete screening box 1 smoothly connects with the discharge port 9 .

[0031] Through the above-mentioned arrangement, when the sand and gravel filtered by the filter screen 7 falls to the bottom of the environmentally friendly concrete screening box 1, it will slide down to the discharge port 9 under the action of the inclined surface, and then be discharged from the environmentally friendly concrete screening box 1 from the discharge port 9.

[0032] In this embodiment, a feeding trough 6 is installed on the upper side of the environmentally friendly concrete screening box 1 , and a vibration motor 10 is fixedly installed on the rear side of the environmentally friendly concrete screening box 1 .

[0033] Through the above-mentioned arrangement, the vibration motor 10 is arranged to provide vibration for the filter screen 7, thereby accelerating the screening rate.

[0034] In this embodiment, a mounting groove 11 is fixedly installed on the inner wall of the environmentally friendly concrete screening box 1 , a tilting block 12 is fixedly installed on the upper side of the mounting groove 11 , and a frame 71 is slidably engaged with the inner side of the mounting groove 11 .

[0035] By configuring in the above manner, the tilting block 12 is configured to avoid the disadvantage of material accumulation above the installation groove 11 .

[0036] The working principle of the sand and gravel screening device for environmentally friendly concrete production provided by the utility model is as follows:

[0037] When in use, the vibration motor 10 is started, and the sand and gravel materials are added into the environmentally friendly concrete screening box 1 through the feeding trough, and the sand and gravel materials slide onto the filter screen 7. Under the action of vibration, the sand and gravel materials with small particle sizes slide through the filter screen 7 to the bottom of the environmentally friendly concrete screening box 1 and are discharged from the discharge port 9. The sand and gravel with larger particle sizes stay on the upper side of the filter screen 7. When a large amount of sand and gravel accumulates on the filter screen 7, the electric telescopic rod 54 is started at this time to push the inner plate 56 out of the engagement interval with the opening 2, and the motor 51 is subsequently started to drive the threaded rod 52 to rotate, thereby driving the outer plate 55 and the inner plate 56 to slide upward, so that the opening 2 In the open state, during the opening process, the torsional force provided by the high-strength torsion spring 86 causes the guide plate 81 located on the outside of the frame 71 to gradually rotate upward. When the inner plate 56 moves to the upper side, the guide plate 81 rotates upward by an angle under the torsional force of the high-strength torsion spring 86, so that the guide plate 81 is in a downward tilted state. At this time, under the action of the guide plate 81, the sand and gravel remaining on the filter screen 7 are discharged to the outside of the environmentally friendly concrete screening box 1, thereby realizing the automatic discharge of the residue on the filter screen. When closing the opening 2, it is the reverse process of opening the opening 2. The principle is the same and will not be repeated here.

[0038] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A sand and gravel screening device for environmentally friendly concrete production, characterized in that: It comprises an environmentally friendly concrete screening box (1), a valve plate transmission assembly (5) is arranged on the side of the environmentally friendly concrete screening box (1), a filter screen (7) is installed on the inside of the environmentally friendly concrete screening box (1), and a material guide assembly (8) is installed on the side of the filter screen (7); The material guide assembly (8) comprises a material guide plate (81), a frame (71) is fixedly mounted on the outside of the filter screen (7), a rotating groove (72) is provided on the side of the frame (71), a rotating block (82) is fixedly connected to the rear side of the material guide plate (81), the rotating block (82) is rotatably mounted on the inside of the rotating groove (72), a rotating shaft (84) is rotatably inserted into the inside of the frame (71), and high-strength torsion springs (86) are fixedly connected between the two ends of the rotating shaft (84) and the environmentally friendly concrete screening box (1); The valve plate transmission assembly (5) comprises a motor (51), a threaded rod (52) is fixedly mounted on the output end of the motor (51), a threaded slider (53) is threadedly mounted on the threaded rod (52), an outer plate (55) is arranged on the side of the threaded slider (53), an electric telescopic rod (54) is fixedly connected between the outer plate (55) and the threaded slider (53), and an inner plate (56) is fixedly mounted on the inner side of the outer plate (55).

2. The sand and gravel screening device for environmentally friendly concrete production according to claim 1 is characterized in that: A circular hole is provided inside the rotating block (82), a limit key (83) is arranged inside the circular hole, a key slot (85) is provided throughout the rotating shaft (84), and a sealing rubber plate (87) is clamped and installed between the frame (71) and the guide plate (81).

3. The sand and gravel screening device for environmentally friendly concrete production according to claim 1 is characterized in that: An opening (2) and a discharge port (9) are provided on the side wall of the environmentally friendly concrete screening box (1).

4. The sand and gravel screening device for environmentally friendly concrete production according to claim 3 is characterized in that: The size of the opening (2) is compatible with the inner plate (56).

5. The sand and gravel screening device for environmentally friendly concrete production according to claim 1 is characterized in that: The bottom of the environmentally friendly concrete screening box (1) is arranged in an inclined manner, and the lowest point of the bottom of the environmentally friendly concrete screening box (1) smoothly intersects with the discharge port (9).

6. The sand and gravel screening device for environmentally friendly concrete production according to claim 1 is characterized in that: A feeding trough (6) is installed on the upper side of the environmentally friendly concrete screening box (1), and a vibration motor (10) is fixedly installed on the rear side of the environmentally friendly concrete screening box (1).

7. The sand and gravel screening device for environmentally friendly concrete production according to claim 1 is characterized in that: A first mounting plate (3) and a second mounting plate (4) are mounted on the side wall of the environmentally friendly concrete screening box (1); the motor (51) is fixedly mounted on the bottom of the first mounting plate (3); and the threaded rod (52) is screwed and mounted between the first mounting plate (3) and the second mounting plate (4).

8. The sand and gravel screening device for environmentally friendly concrete production according to claim 1 is characterized in that: A mounting groove (11) is fixedly mounted on the inner wall of the environmentally friendly concrete screening box (1), a tilting block (12) is fixedly mounted on the upper side of the mounting groove (11), and the frame (71) is slidably engaged with the inner side of the mounting groove (11).

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