Roadbed filler screening equipment

Abstract

The utility model discloses roadbed filler screening equipment, which belongs to the technical field of filler screening and comprises a mounting frame arranged on the ground, sliding through holes are formed in two side walls of the mounting frame, sliding plates are arranged in the sliding through holes in a sliding manner, and a screening frame is fixed between the two sliding plates. An electric push rod for driving the screening frame to move is fixedly installed on one side wall in the installation frame, a sliding groove is formed in the screening frame, a screening assembly convenient to replace is arranged in the sliding groove in a sliding mode, and a top dustproof assembly capable of being stored is fixedly installed at the top of the installation frame. The screening plate can be rapidly disassembled, assembled and replaced according to the screening requirements of different roadbed fillers, the roadbed fillers blocked in the screening holes can be conveniently cleaned, the service life of the screening plate is prolonged, meanwhile, dust flying in the roadbed filler screening process is reduced through the storable top dustproof assembly, the screening environment quality is improved, and the screening efficiency is improved. The practicability is high.

Description

Technical Field

[0001] This utility model specifically relates to a roadbed filler screening device, belonging to the field of filler screening technology. Background Technology

[0002] Roadbed filler is a material used to fill roadbeds, such as soil and stone. Different materials have different physical and mechanical properties. Unqualified roadbed filler has low strength and is easy to deform, which can lead to problems such as roadbed settlement and cracking. Screening roadbed filler can ensure that the filler meets the requirements of strength and stability, and guarantee the quality and service life of the roadbed.

[0003] Existing roadbed filler screening equipment cannot quickly disassemble and replace the screen plates according to the screening requirements of different roadbed fillers. This not only increases the labor intensity of workers but may also lead to worker fatigue, thereby affecting work quality and safety. Furthermore, it is inconvenient to clean the roadbed filler that is blocked inside the screen holes. At the same time, dust flies during the screening process, increasing the probability of respiratory diseases for workers and surrounding residents. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a roadbed filler screening device to achieve rapid screen plate replacement.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: a roadbed filler screening device, comprising an installation frame placed on the ground, with sliding openings on both side walls of the installation frame, a sliding plate slidably disposed inside the sliding opening, a screening frame fixed between the two sliding plates, and an electric push rod for moving the screening frame fixedly installed on one side wall inside the installation frame, the screening frame having a sliding groove inside, a slot and a limiting groove on one side wall of the screening frame, the slot and the limiting groove communicating with each other, a replaceable screening component slidably disposed inside the sliding groove, and a retractable top dustproof component fixedly installed on the top of the installation frame.

[0006] Furthermore, in order to collect the roadbed fill material after multiple screenings, the replaceable screening component is snapped into the limiting groove, and a collection frame for collecting the roadbed fill material is provided on the inner wall of the bottom of the mounting frame.

[0007] Furthermore, in order to cushion the sieve plate, the replaceable screening assembly includes a rubber gasket for cushioning and sealing and a sieve plate for screening roadbed filler. The inner side of the rubber gasket is fixed to both sides of the sieve plate, and the sieve plate is located inside the screening frame.

[0008] Furthermore, to facilitate the feeding of the screened roadbed filler, the screen plate is provided with screening holes, a discharge hopper is fixed on one of the adjacent side walls of the screen plate, and a fixing rod is rotatably installed on the other adjacent side wall of the screen plate, with an installation groove fixed at one end of the fixing rod.

[0009] Furthermore, in order to quickly disassemble and replace the sieve plate, a spring is fixed inside the mounting groove, and a limiting plate is fixed to the other end of the spring. The limiting plate is engaged inside the limiting groove.

[0010] Furthermore, in order to flexibly adjust the position of the mounting plate and facilitate the transportation of the screening equipment, the retractable top dustproof assembly includes a mounting frame and a mounting plate. The bottom of the mounting frame is fixedly installed on the top of the mounting frame, and the mounting plate is placed inside the mounting frame. Threaded openings are provided on both sides of the mounting frame, and threaded grooves are provided on both sides of the mounting plate.

[0011] Furthermore, in order to feed the screened roadbed filler, bolts are installed in the threaded port and the internal threads of the threaded groove, and a feed rack for feeding the roadbed filler is fixed on the top of the mounting plate.

[0012] Furthermore, to prevent dust from overflowing from the feed rack, a cover plate is rotatably mounted on the top of the feed rack via a mounting shaft, and a second spring is fixedly mounted on the bottom of the cover plate, with the other end of the second spring fixedly mounted on one side inside the feed rack.

[0013] Beneficial effects:

[0014] This invention, through its easily replaceable screening components, not only allows for quick disassembly and replacement of the screen plates according to the screening requirements of different roadbed fillers, making the screening equipment adaptable to switching between various roadbed fillers and improving construction efficiency, but also facilitates the cleaning of roadbed fillers clogging the screen holes, extending the service life of the screen plates. At the same time, the retractable top dustproof component reduces dust flying during the roadbed filler screening process, improving the environmental quality of screening, and allows for adjustment of the position of the mounting plate and feed rack, facilitating the transportation of the screening equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a top view of part of the structure of this utility model;

[0017] Figure 3 This is a partial structural side view of the present invention;

[0018] Figure 4This is a schematic diagram showing the disassembled structure of the replaceable screening component of this utility model.

[0019] Figure 5 This is a cross-sectional view of the retractable top dustproof component structure of this utility model.

[0020] In the diagram: 1. Mounting frame; 2. Slide plate; 3. Screening rack; 4. Easy-to-replace screening component; 401. Screen plate; 402. Rubber pad; 403. Discharge hopper; 404. Fixing rod; 405. Spring 1; 406. Limiting plate; 5. Collection frame; 6. Retractable top dustproof component; 601. Mounting frame; 602. Mounting plate; 603. Feeding rack; 604. Cover plate; 605. Spring 2; 7. Electric push rod; 8. Groove; 9. Limiting groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-5 As shown, a roadbed filler screening device includes a mounting frame 1 placed on the ground. Sliding openings are provided on both side walls of the mounting frame 1. Sliding plates 2 are slidably disposed inside the sliding openings. The two sliding plates 2 can move within the sliding openings as a screening frame 3 moves, improving the stability of the screening frame 3 in screening roadbed fillers. A screening frame 3 is fixed between the two sliding plates 2. An electric push rod 7, which drives the screening frame 3 to move, is fixedly installed on one side wall inside the mounting frame 1. A sliding groove is provided inside the screening frame 3, and a slot 8 is provided on one side wall of the screening frame 3. The limiting groove 9 and the slot 8 are connected. The slot 8 facilitates the disassembly and assembly of the replaceable screening component 4. The limiting groove 9 has a limiting effect on the replaceable screening component 4, preventing the replaceable screening component 4 from separating from the screening frame 3 during the screening process. The replaceable screening component 4 is slidably arranged inside the chute. The top of the mounting frame 1 is fixedly installed with a retractable top dustproof component 6. The replaceable screening component 4 is snapped into the limiting groove 9. The bottom inner wall of the mounting frame 1 is provided with a collection frame 5 for collecting roadbed fill material.

[0023] In actual use, the two replaceable screening components 4 are manually snapped into the screening frame 3. The diameter of the screen hole of the upper replaceable screening component 4 is larger than that of the lower replaceable screening component 4. Together with the collection frame 5, it can perform multi-stage screening of roadbed fill material. Then, the retractable top dustproof component 6 is assembled. The retractable top dustproof component 6 can reduce dust flying during the screening process of roadbed fill material. Dust may contain harmful substances such as silica dust and heavy metals. Long-term inhalation can easily cause occupational diseases such as pneumoconiosis and respiratory inflammation. Reducing dust can significantly reduce the health risks of construction workers. In addition, the retractable top dustproof component 6 can be stored, which is convenient for stacking and transporting the screening equipment.

[0024] When screening roadbed fill material, the roadbed fill material is manually poured into the retractable top dustproof component 6. Under its own gravity, the roadbed fill material falls into the screening rack 3 and is screened by the retractable top dustproof component 6. At the same time, the electric push rod 7 stretches and retracts, which can drive the screening rack 3 and the sliding plate 2 to move inside the mounting frame 1 and the sliding opening, respectively, improving the screening effect of the roadbed fill material. The roadbed fill material that has been screened in multiple stages can fall into the collection frame 5 for unified collection, which is convenient for subsequent use.

[0025] As a technical optimization of this utility model, the replaceable screening component 4 includes a rubber pad 402 for buffer sealing and a screen plate 401 for screening roadbed filler. The rubber pad 402 is fixed to both sides of the screen plate 401. The screen plate 401 is located inside the screening frame 3. Both sides of the screen plate 401 are engaged in the sliding groove. The sliding groove has a limiting effect on the screen plate 401. Screening holes are opened on the screen plate 401. A discharge hopper 403 is fixed to one of the adjacent side walls on one side of the screen plate 401. A fixing rod 404 is rotatably installed on the other adjacent side wall on one side of the screen plate 401. One end of the fixing rod 404 is fixed to an installation groove. A spring 405 is fixed inside the installation groove. A limiting plate 406 is fixed to the other end of the spring 405. The limiting plate 406 is engaged in the limiting groove 9.

[0026] In use, the rubber pad 402 and the screen plate 401 are manually slidably installed inside the groove on both sides. The rubber pad 402 not only buffers the screen plate 401, extending its service life and reducing vibration noise during screening, but also improves the sealing effect between the screen plate 401 and the screening frame 3, preventing the roadbed filler particles from leaking out of the gaps. Then, the limiting plate 406 is rotated and locked into the limiting groove 9, improving the stability between the screening frame 3 and the screen plate 401. The roadbed filler can then be screened using the screen holes of the screen plate 401, and the screened roadbed filler can flow out through the discharge hopper 403.

[0027] When replacing the screen plate 401 or cleaning the screen holes of the screen plate 401, manually pull the limiting plate 406 to one side. At this time, the spring 405 is in a stretched state. The spring 405 has the ability to return to its original state, releasing the limiting effect between the limiting plate 406 and the limiting groove 9. Then rotate the limiting plate 406 and the fixing plate to set the limiting plate 406 and the groove 8 on the same horizontal line. Then pull the discharge hopper 403 and the screen plate 401 to the other side.

[0028] As a technical optimization of this utility model, the retractable top dustproof component 6 includes a mounting frame 601 and a mounting plate 602. The bottom of the mounting frame 601 is fixedly installed on the top of the mounting frame 1, and the mounting plate 602 is placed inside the mounting frame 601. Threaded openings are provided on both sides of the mounting frame 601, and threaded grooves are provided on both sides of the mounting plate 602. Bolts are installed inside the threaded openings and threaded grooves to facilitate the assembly of the mounting frame 601 and the mounting plate 602. A feeding rack 603 for roadbed filler is fixedly installed on the top of the mounting plate 602. A cover plate 604 is rotatably installed on the top of the feeding rack 603 via a mounting shaft. A second spring 605 is fixedly installed on the bottom of the cover plate 604, and the other end of the second spring 605 is fixedly installed on one side inside the feeding rack 603.

[0029] In use, the mounting plate 602 is manually placed inside the mounting frame 601, and bolts are used to assemble the mounting plate 602 and the mounting frame 601. The mounting frame 601 and the mounting plate 602 can reduce dust flying during the screening process of roadbed filler, improve the environmental quality of the screening operation, prevent dust from spreading to surrounding farmland, rivers, and residential areas by the wind, reduce pollution to soil, water sources and vegetation, and protect the balance of the ecosystem. At the same time, when feeding the roadbed filler to be screened, the roadbed filler is placed on top of the cover plate 604. The roadbed filler exerts pressure on the cover plate 604, allowing the cover plate 604 and the mounting shaft to rotate inside the feed rack 603 and compress the second spring 605. The second spring 605 has the ability to return to its original state. Under its own weight, the roadbed filler can fall to the top of the screening rack 3 for screening. When no material is being fed, the top of the cover plate 604 is not under pressure. Under the action of the second spring 605, the cover plate 604 can rotate in the opposite direction, improving the sealing effect of the feed rack 603 and providing better dust prevention.

[0030] After adjusting the relative positions between the mounting plate 602 and the mounting frame 601, both the mounting plate 602 and the feeding rack 603 can be placed inside the mounting frame 601, which allows the mounting plate 602 and the feeding rack 603 to be stored, reducing the space occupied by the screening equipment, making it easier to transport and use the screening equipment.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A subgrade filler screening apparatus comprising a mounting frame (1) to be placed on the ground, characterized in that: The mounting frame (1) has sliding openings on both sides. Slide plates (2) are slidably arranged inside the sliding openings. A screening rack (3) is fixed between the two slide plates (2). An electric push rod (7) for moving the screening rack (3) is fixedly installed on one side wall inside the mounting frame (1). A sliding groove is provided inside the screening rack (3). A slot (8) and a limiting groove (9) are provided on one side wall of the screening rack (3). The slot (8) and the limiting groove (9) are connected. A replaceable screening component (4) is slidably arranged inside the sliding groove. A retractable top dustproof component (6) is fixedly installed on the top of the mounting frame (1).

2. A subgrade filler screening apparatus as claimed in claim 1, wherein: The replaceable screening component (4) is snapped into the limiting groove (9), and the bottom inner wall of the mounting frame (1) is provided with a collection frame (5) for collecting roadbed fill.

3. A subgrade filler screening apparatus as defined in claim 1, wherein: The replaceable screening assembly (4) includes a rubber pad (402) for buffer sealing and a screen plate (401) for screening roadbed filler. The inner side of the rubber pad (402) is fixed to both sides of the screen plate (401), and the screen plate (401) is located inside the screening frame (3).

4. A subgrade filler screening apparatus as claimed in claim 3, wherein: The sieve plate (401) has screening holes. A discharge hopper (403) is fixed on one of the adjacent side walls of the sieve plate (401). A fixing rod (404) is rotatably installed on the other adjacent side wall of the sieve plate (401). One end of the fixing rod (404) is fixed with an installation groove.

5. A subgrade filler screening apparatus as claimed in claim 4, wherein: A spring (405) is fixed inside the mounting groove, and a limiting plate (406) is fixed at the other end of the spring (405). The limiting plate (406) is engaged inside the limiting groove (9).

6. A subgrade filler screening apparatus as defined in claim 1, wherein: The retractable top dustproof component (6) includes a mounting bracket (601) and a mounting plate (602). The bottom of the mounting bracket (601) is fixedly installed on the top of the mounting frame (1). The mounting plate (602) is placed inside the mounting bracket (601). Threaded openings are provided on both sides of the mounting bracket (601), and threaded grooves are provided on both sides of the mounting plate (602).

7. A subgrade filler screening apparatus as claimed in claim 6, wherein: Bolts are installed inside the threaded port and the threaded groove, and a feed rack (603) for feeding roadbed filler is fixed on the top of the mounting plate (602).

8. A subgrade filler screening apparatus as claimed in claim 7, characterised in that: The top of the feed rack (603) is rotatably mounted with a cover plate (604) via an installation shaft. A second spring (605) is fixedly mounted at the bottom of the cover plate (604), and the other end of the second spring (605) is fixedly mounted inside the feed rack (603) on one side.

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