Fine stone screening device for concrete processing

Abstract

The utility model provides a fine stone screening device for concrete processing. Comprising a box body, a box door is hinged to the front surface of the box body, a feeding port is formed in the upper end of the box body, a blocking mechanism is arranged in the feeding port, and a discharging port is formed in the lower end of the box body. Through the arrangement of the plugging mechanism, when concrete is thrown into the box body through the feeding port, the concrete falls on the plugging plate and extrudes the first spring, so that the plugging plate inclines, the concrete can enter the box body through a gap generated by inclination, and after the pressure on the plugging plate disappears, the first spring drives the plugging plate to reset; the feeding port is blocked, dust generated in the screening process can be effectively controlled, the possibility that the dust diffuses to the surrounding environment is reduced, air quality maintenance is facilitated, the environment protection requirement is met, meanwhile, the working environment can be improved, the working comfort and safety of an operator can be improved, and potential harm of the dust to the human body can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of concrete processing, in particular to a fine stone screening device for concrete processing. Background Art

[0002] Concrete is a general term for engineering composite materials that are cemented into a whole by cementitious materials. The term concrete usually refers to cement as a cementitious material, sand and stone as aggregates, mixed with water in a certain proportion, and then mixed to obtain cement concrete, also known as ordinary concrete. It is widely used in civil engineering. Concrete has the characteristics of abundant raw materials, low price, and simple production process, so its usage is increasing. At the same time, concrete also has the characteristics of high compressive strength, good durability, and a wide range of strength grades.

[0003] The existing authorization number is CN210474664U, which discloses a screening device for concrete processing, including a screening device body, the top of the screening device body is fixedly connected to a feed pipe, the back of the screening device body is fixedly connected to a sub-box, the inner wall of the sub-box is fixedly connected to a first servo motor, the output shaft of the first servo motor is fixedly connected to a vibration box through a coupling, the inner wall of the vibration box is fixedly connected to a hydraulic cylinder, and the output shaft of the hydraulic cylinder is fixedly connected to a piston rod. The screening device for concrete processing, through the first servo motor, vibration box, hydraulic cylinder, piston rod, vibration plate, first filter barrel, filter plate, second filter barrel, motor and stirring rod, can make people convenient to screen concrete, solve the problem of low screening efficiency and insufficient screening of general screening devices for concrete processing, thereby improving people's work efficiency and meeting people's needs. However, since the above-mentioned screening device for concrete processing has a relatively simple structure and lacks a dust blocking mechanism, the dust generated during the screening process may spread to the surrounding environment, resulting in an increase in the concentration of particulate matter in the air, which may have adverse effects on the working environment and the health of the operator. Therefore, it is necessary to provide a fine stone screening device for concrete processing to solve the above-mentioned problem. Utility Model Content

[0004] The technical content of the utility model is to provide a fine stone screening device for concrete processing.

[0005] In order to solve the above problems, the utility model provides a fine stone screening device for concrete processing, comprising a box body, a box door is hingedly connected to the front surface of the box body, a feed port is arranged at the upper end of the box body, and a sealing mechanism is arranged in the feed port, a discharge port is arranged at the lower end of the box body, a screening mechanism is arranged in the box body, and a vibration mechanism is arranged at the lower end of the screening mechanism, and a collecting mechanism is arranged on one side of the box body.

[0006] As a further solution of the present invention, a handle is fixedly mounted on the front surface of the box door, and a transparent observation window is provided on the front surface of the box door.

[0007] As a further solution of the present invention, the sealing mechanism includes a sealing plate, which is rotatably connected in the feed port, and the sealing plates are arranged in two groups in opposite directions. The inner wall of the feed port is fixedly connected with a fixing frame, and first springs are arranged on both sides of the upper end of the fixing frame, and the upper ends of the two groups of first springs are respectively connected to the lower surfaces of the two groups of sealing plates.

[0008] As a further solution of the present invention, the bottom of the inner wall of the box body is arranged to be a structure inclined from the surroundings to the middle, and the discharge port is arranged at the lowest point of the inclination.

[0009] As a further solution of the present invention, the screening mechanism includes a fixed plate, which is distributed in two groups in opposite directions, and the sides of the two groups of fixed plates that are away from each other are fixedly connected to the inner wall of the box body, and the upper ends of the two groups of fixed plates are connected to the connecting plate through a second spring. A screen plate is arranged in the box body, and sliders are fixedly installed on both sides of the lower surface of the screen plate, and the sliders are arranged in a T-shaped structure, and the upper ends of the two groups of connecting plates are provided with sliding grooves that cooperate with the sliders.

[0010] As a further solution of the utility model, the vibration mechanism includes a motor, which is fixedly installed on the rear side of the box body. The rotating shaft of the motor is connected to the rotating rod. A cam is fixedly sleeved on the rotating rod, and two groups of cams are arranged in front and back positions, and both groups of cams are located at the lower end of the screen plate.

[0011] As a further solution of the present invention, one end of the rotating rod away from the motor is rotatably connected to a support rod, and both ends of the support rod are fixedly connected to the inner wall of the box body.

[0012] As a further solution of the present invention, the collecting mechanism includes a connecting pipe, an opening is provided on one side of the box body, and the opening is arranged at the upper end of the screen plate, the connecting pipe is fixedly connected to the opening, the lower end of the connecting pipe is fixedly connected to a fixed box, and a collecting box is inserted into the front surface of the fixed box.

[0013] As a further solution of the utility model, an electric push rod is arranged on the side of the connecting pipe away from the box body, and the electric push rod is composed of a motor unit and a push rod unit. The motor unit is fixedly connected to the connecting pipe, and the push rod unit is movably inserted in the connecting pipe. One end of the push rod unit is connected to a scraper, and the scraper is arranged at the upper end of the screen plate.

[0014] In summary, the present invention includes at least one of the following beneficial technical effects:

[0015] First, the utility model records a fine stone screening device for concrete processing, which records that a sealing mechanism is provided. When concrete is fed into a box through a feed port, the concrete falls onto a sealing plate, squeezing a first spring so that the sealing plate is tilted, and the concrete can enter the box through a gap created by the tilt. After the pressure on the sealing plate disappears, the first spring drives the sealing plate to reset, sealing the feed port. This can effectively control the dust generated during the screening process, reduce the possibility of dust spreading to the surrounding environment, help maintain air quality, and meet environmental protection requirements. At the same time, it can improve the working environment, improve the operator's work comfort and safety, and reduce the potential harm of dust to the human body.

[0016] Second, the utility model records a fine stone screening device for concrete processing, which records that by providing a screening mechanism, fine stones in concrete can be screened, and a sliding block provided at the lower end of the sieve plate is convenient for disassembly and assembly of the sieve plate, and convenient for replacing sieve plates with sieve holes of different sizes to adapt to the screening of different fine stones, thereby improving the applicability of the device.

[0017] Third, the utility model records a fine stone screening device for concrete processing, which records that by providing a vibration mechanism, the sieve plate can be knocked by a cam, and the second spring is used to keep the sieve plate vibrating, thereby improving the screening efficiency of the device.

[0018] Fourth, the utility model records a fine stone screening device for concrete processing, which records that by providing a collecting mechanism, the scraper can be driven to move by an electric push rod. When the screen plate stops vibrating, the fine stones on the upper end of the screen plate are scraped through the opening into the collection box for collection, which can effectively prevent the fine stones from accumulating on the screen plate and ensure the screening effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0020] Figure 1 This is a structural schematic diagram of a fine stone screening device for concrete processing according to the utility model;

[0021] Figure 2 This is a schematic diagram of the exploded structure of a fine stone screening device for concrete processing according to the utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of a fine stone screening device for concrete processing according to the utility model;

[0023] Figure 4 This is a schematic diagram of the cross-sectional exploded structure of a box of a fine stone screening device for concrete processing according to the utility model;

[0024] Figure 5 This is a schematic diagram of the exploded structure of a fine stone screening device for concrete processing according to the utility model;

[0025] Figure 6 The utility model is a schematic diagram of the cam distribution structure of a fine stone screening device for concrete processing.

[0026] Figure numerals: 1. Box body; 2. Box door; 3. Transparent observation window; 4. Feed inlet; 5. Sealing plate; 6. Fixed frame; 7. First spring; 8. Discharge outlet; 9. Fixed plate; 10. Second spring; 11. Connecting plate; 12. Screen plate; 13. Motor; 14. Rotating rod; 15. Cam; 16. Support rod; 17. Connecting pipe; 18. Fixed box; 19. Collecting box; 20. Electric push rod; 21. Scraper. DETAILED DESCRIPTION

[0027] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 A fine stone screening device for concrete processing comprises a box body 1, a box door 2 is hingedly connected to the front surface of the box body 1, a feed port 4 is arranged at the upper end of the box body 1, and a blocking mechanism is arranged in the feed port 4, a discharge port 8 is arranged at the lower end of the box body 1, a screening mechanism is arranged in the box body 1, and a vibration mechanism is arranged at the lower end of the screening mechanism, and a collecting mechanism is arranged on one side of the box body 1.

[0028] Preferably, a handle is fixedly installed on the front surface of the box door 2, and a transparent observation window 3 is provided on the front surface of the box door 2, so that the staff can observe the screening state in the box body 1 at any time and perform maintenance in time;

[0029] Preferably, the blocking mechanism includes a blocking plate 5, which is rotatably connected to the feed port 4, and two groups of blocking plates 5 are arranged in opposite directions. A fixing frame 6 is fixedly connected to the inner wall of the feed port 4, and first springs 7 are arranged on both sides of the upper end of the fixing frame 6, and the upper ends of the two groups of first springs 7 are respectively connected to the lower surfaces of the two groups of blocking plates 5. By providing the blocking plate 5, the feed port 4 can be blocked to reduce the possibility of dust spreading to the surrounding environment;

[0030] Preferably, the bottom of the inner wall of the box body 1 is arranged to be an inclined structure from the periphery to the middle, and the discharge port 8 is arranged at the lowest point of the inclination, which can prevent the accumulation of concrete and facilitate the discharge of the screened concrete;

[0031] Preferably, the screening mechanism includes a fixed plate 9, and the fixed plates 9 are arranged in two groups in opposite distribution. The sides of the two groups of fixed plates 9 that are away from each other are fixedly connected to the inner wall of the box body 1, and the upper ends of the two groups of fixed plates 9 are connected to the connecting plate 11 through the second spring 10. A sieve plate 12 is arranged in the box body 1, and sliders are fixedly installed on both sides of the lower surface of the sieve plate 12, and the sliders are arranged in a T-shaped structure. The upper ends of the two groups of connecting plates 11 are provided with sliding grooves that match the sliders. By providing the connecting plates 11, the sieve plate 12 can be supported and fixed to maintain the stability of the sieve plate 12. At the same time, it is convenient to disassemble the sieve plate 12 and replace the sieve plate 12 with sieve holes of different sizes to adapt to the screening of different fine stones, thereby improving the applicability of the device;

[0032] Preferably, the vibration mechanism includes a motor 13, which is fixedly mounted on the rear side of the box body 1, and the rotating shaft of the motor 13 is connected to the rotating rod 14. A cam 15 is fixedly sleeved on the rotating rod 14, and two groups of cams 15 are arranged in front and back positions, and both groups of cams 15 are located at the lower end of the sieve plate 12. By providing the cams 15, the sieve plate 12 can be knocked by the motor 13, thereby improving the screening efficiency of the device;

[0033] Preferably, the end of the rotating rod 14 away from the motor 13 is rotatably connected to the support rod 16, and both ends of the support rod 16 are fixedly connected to the inner wall of the box body 1. By providing the support rod 16, the rotating rod 14 can be supported to maintain the stability of the rotating rod 14;

[0034] Preferably, the collecting mechanism includes a connecting pipe 17, an opening is provided on one side of the box body 1, and the opening is provided at the upper end of the sieve plate 12, the connecting pipe 17 is fixedly connected to the opening, the lower end of the connecting pipe 17 is fixedly connected to a fixed box 18, and a collecting box 19 is inserted into the front surface of the fixed box 18, by providing the collecting box 19, fine stones can be collected, and the collecting box 19 can be pulled out of the fixed box 18 to clean the fine stones, which is simple to operate and improves the practicality of the device;

[0035] Preferably, an electric push rod 20 is provided on the side of the connecting tube 17 away from the box body 1, and the electric push rod 20 consists of a motor unit and a push rod unit. The motor unit is fixedly connected to the connecting tube 17, and the push rod unit is movably inserted in the connecting tube 17. A scraper 21 is connected to one end of the push rod unit, and the scraper 21 is provided at the upper end of the sieve plate 12. By providing the scraper 21, fine stones accumulated on the sieve plate 12 can be scraped into the collecting box 19 to avoid the accumulation of fine stones on the sieve plate 12, thereby ensuring the screening effect of the device.

[0036] The working principle of a fine stone screening device for concrete processing provided by the utility model is as follows:

[0037] Step 1: When in use, concrete is added into the box body 1 through the feed port 4, and the concrete falls on the blocking plate 5, squeezing the first spring 7 so that the blocking plate 5 is tilted, and the concrete can enter the box body 1 through the gap caused by the tilt. After the pressure on the blocking plate 5 disappears, the first spring 7 drives the blocking plate 5 to reset, and the feed port 4 is blocked. The concrete entering the box body 1 falls on the sieve plate 12, and the motor 13 drives the cam 15 on the rotating rod 14 to knock the sieve plate 12, which cooperates with the second spring 10 to keep the sieve plate 12 vibrating, and the screened concrete is discharged through the discharge port 8;

[0038] The second step: after using for a period of time, the electric push rod 20 drives the scraper 21 to move, and the fine stones on the upper end of the screen plate 12 are scraped through the opening into the collection box 19 for collection, and the collection box 19 is pulled out of the fixed box 18 to clean the fine stones. The above is the entire working principle of the utility model.

[0039] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0040] Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations or direct or indirect applications may be made to these embodiments without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the attached claims and their equivalents, which are equally included in the scope of patent protection of the present invention.

Claims

1. A fine stone screening device for concrete processing, characterized in that: include: A box body (1), wherein the front surface of the box body (1) is hingedly connected to a box door (2), a feed port (4) is arranged at the upper end of the box body (1), and a blocking mechanism is arranged inside the feed port (4), the blocking mechanism comprises a blocking plate (5), the blocking plate (5) is rotatably connected inside the feed port (4), two groups of blocking plates (5) are arranged in opposite directions, the inner wall of the feed port (4) is fixedly connected to a fixing frame (6), and first springs (7) are arranged on both sides of the upper end of the fixing frame (6), and the upper ends of the two groups of first springs (7) are respectively connected to the lower surfaces of the two groups of blocking plates (5), a discharge port (8) is arranged at the lower end of the box body (1), a screening mechanism is arranged inside the box body (1), and a vibration mechanism is arranged at the lower end of the screening mechanism, and a collecting mechanism is arranged on one side of the box body (1).

2. The fine stone screening device for concrete processing according to claim 1, characterized in that: A handle is fixedly mounted on the front surface of the box door (2), and a transparent observation window (3) is provided on the front surface of the box door (2).

3. The fine stone screening device for concrete processing according to claim 1 is characterized in that: The bottom of the inner wall of the box body (1) is arranged as a structure inclined from the periphery to the middle, and the discharge port (8) is arranged at the lowest point of the inclination.

4. The fine stone screening device for concrete processing according to claim 1 is characterized in that: The screening mechanism comprises a fixed plate (9), wherein two groups of the fixed plates (9) are arranged in opposite directions, and the sides of the two groups of fixed plates (9) that are away from each other are fixedly connected to the inner wall of the box body (1), and the upper ends of the two groups of fixed plates (9) are connected to a connecting plate (11) through a second spring (10). A sieve plate (12) is arranged in the box body (1), and sliders are fixedly installed on both sides of the lower surface of the sieve plate (12), and the sliders are arranged in a T-shaped structure. The upper ends of the two groups of connecting plates (11) are provided with sliding grooves that match the sliders.

5. The fine stone screening device for concrete processing according to claim 1, characterized in that: The vibration mechanism comprises a motor (13), the motor (13) is fixedly mounted on the rear side of the box body (1), the rotating shaft of the motor (13) is connected to a rotating rod (14), a cam (15) is fixedly sleeved on the rotating rod (14), and two groups of cams (15) are arranged in front and rear positions, and both groups of cams (15) are located at the lower end of the screen plate (12).

6. The fine stone screening device for concrete processing according to claim 5, characterized in that: One end of the rotating rod (14) away from the motor (13) is rotatably connected to a support rod (16), and both ends of the support rod (16) are fixedly connected to the inner wall of the box body (1).

7. The fine stone screening device for concrete processing according to claim 1, characterized in that: The collecting mechanism comprises a connecting pipe (17), one side of the box body (1) is provided with an opening, and the opening is arranged at the upper end of the sieve plate (12), the connecting pipe (17) is fixedly connected to the opening, the lower end of the connecting pipe (17) is fixedly connected to a fixed box (18), and a collecting box (19) is inserted into the front surface of the fixed box (18).

8. The fine stone screening device for concrete processing according to claim 7, characterized in that: An electric push rod (20) is arranged on the side of the connecting pipe (17) away from the box body (1), and the electric push rod (20) is composed of a motor unit and a push rod unit. The motor unit is fixedly connected to the connecting pipe (17), and the push rod unit is movably inserted in the connecting pipe (17). One end of the push rod unit is connected to a scraper (21), and the scraper (21) is arranged on the upper end of the screen plate (12).

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