Screening device for highway construction

Abstract

The utility model provides a screening device for highway construction, which relates to the technical field of construction devices and comprises a base, a box body, a screening component and a driving component. According to the screening device for highway construction, gravel to be screened and classified is added into the box body, the gravel can fall on the screening plate of the screening assembly on the uppermost layer, the hole diameter of the coarse screen of each vertically-arranged screening plate is sequentially reduced downwards, and the gravel larger than the hole diameter of the coarse screen of the uppermost layer can be left on the coarse screen; the gravel with the diameter smaller than the hole diameter of the uppermost layer of coarse screen mesh can penetrate through the coarse screen mesh, and the like, the gravel with the minimum particle diameter can penetrate through the fine screen mesh at the bottom of the box body to enter the bottom of the box body, and after the gravel is screened by the screening assembly, the rotating handles corresponding to the screen plates are rotated correspondingly, so that the screen plates rotate upwards along the sliding grooves and incline downwards in the direction facing the discharging opening. The gravels with the corresponding particle sizes on the sieve plate can flow out into the discharging frame through the discharging opening, the gravels with the minimum particle sizes are taken out from the bottom opening, and the purpose of collecting the gravels with the different particle sizes in a classified mode is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction devices, in particular to a screening device for highway construction. Background Art

[0002] The screening device for highway construction is a mechanical device used for screening and classifying sand and gravel materials. Its main function is to separate sand and gravel according to different particle sizes. Sand and gravel with different particle sizes have different strength and performance characteristics. Through classification, it can be ensured that each particle size of sand and gravel meets the engineering design requirements, thereby improving the engineering quality and durability.

[0003] Accurately classifying and collecting sand and gravel can reduce waste caused by using unqualified materials and improve the resource utilization efficiency. The screening device can simply and quickly separate and collect sand and gravel with different particle sizes, and can accurately take out the classified sand and gravel as needed, which can reduce the time of manual operation, make the construction process more efficient, and can also ensure the accuracy and consistency of construction materials. Content of the Utility Model

[0004] The utility model provides a screening device for highway construction, achieving the effect of simply and quickly separating and collecting sand and gravel with different particle sizes and accurately taking out the classified sand and gravel as needed as mentioned in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A screening device for highway construction, including a base, a box body, a screening component and a driving component. One side of the base is fixedly connected with a side seat. The box body is slidably connected to the upper end of the base. A plurality of the screening components are vertically arranged inside the box body. The screening component includes a slide rail, a sieve plate and a discharge frame. The slide rail is fixedly connected to the inner side of the box body. The sieve plate is slidably connected in the slide rail. One end of the inner side surface of the sieve plate is provided with a coarse screen. The discharge frame is fixed on the outer side surface of the box body. A discharge port is penetrated and opened at the connection between the discharge frame and the box body. An inclined plate is fixedly connected to the position at the bottom of the discharge port inside the box body. A baffle is fixedly connected to the position at the top of the discharge port inside the box body. The driving component is arranged on one side of the side seat and is used to push the box body to slide horizontally back and forth.

[0006] Preferably, the inclined plate is inclined towards the bottom of the discharge port, and an opening is formed between the inclined plate and the inner wall of the opposite box body.

[0007] Preferably, the slide rail is arc-shaped, the shape of the sieve plate corresponds to the shape of the slide rail, and a chute is opened inside the slide rail, and the chute penetrates the side surface of the box body.

[0008] Preferably, a rotary handle is fixedly connected to one side of the sieve plate. A plurality of rotating shafts are fixedly connected to both sides of the box body. The rotary handle passes through the sliding groove and is rotatably connected to the rotating shaft.

[0009] Preferably, the aperture of the coarse sieve mesh on the sieve plate of the screening assembly arranged successively from top to bottom gradually decreases, and the rotary handles of the screening assembly arranged successively from top to bottom are staggeredly arranged on both sides of the box body.

[0010] Preferably, a slide bar is fixedly connected to the upper surface of the base. The box body is slidably connected to the base through the slide bar.

[0011] Preferably, the driving assembly includes a motor and a telescopic rod. The motor is fixed to one side of the vertical plate of the side seat. A cam is fixedly connected to the output shaft of the motor. The telescopic rod is fixedly arranged on the side of the side seat. A spring is sleeved on the periphery of the telescopic rod. One end of the telescopic rod is fixedly connected to the box body.

[0012] Preferably, a fine sieve mesh is fixedly connected to the inner bottom end of the box body, and a bottom opening is formed in the side surface of the bottom end of the box body.

[0013] Preferably, groove strips are arranged on both sides of the bottom opening. The groove strips are fixed to the box body, and a door panel is slidably connected to the inner side of the groove strips.

[0014] Preferably, a top cover is fixedly connected to the upper end of the box body, and a material guiding cover is fixedly connected to the inner top end of the box body.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. Add the sand and gravel to be screened and classified into the box body through the opening of the top cover. The sand and gravel will fall on the sieve plate of the uppermost screening assembly. The aperture of the coarse sieve mesh of each vertically arranged sieve plate decreases successively downward. The sand and gravel larger than the aperture of the uppermost coarse sieve mesh will remain on the coarse sieve mesh, and the sand and gravel smaller than the aperture of the uppermost coarse sieve mesh will pass through the coarse sieve mesh and fall onto the coarse sieve mesh of the next layer through the opening between the inclined plate and the inner wall of the opposite box body, and so on. The sand and gravel with the smallest particle size will pass through the fine sieve mesh at the bottom of the box body and enter the bottom of the box body. After the sand and gravel are screened by the screening assembly, rotate the rotary handles corresponding to each layer of sieve plates respectively, so that the sieve plates rotate upward along the sliding groove, and the sieve plates are inclined downward towards the discharge port. The sand and gravel with the corresponding particle size on the sieve plates will flow out through the discharge port into the discharge frame, and a collection container is placed on one side of the discharge frame for collection. Slide the door panel upward to take out the sand and gravel with the smallest particle size from the bottom opening, so as to achieve the purpose of classifying and collecting sand and gravel with different particle sizes.

[0017] 2. The starting motor can drive the cam to rotate. The cam will push the box body to slide along the slide bar in the direction away from the side seat. When the long-axis end of the cam fits with the box body, the box body reaches the farthest position. At this time, the telescopic rod is in the extended state and the spring is in the stretched state. When the contact end of the cam with the box body changes from the long-axis end to the short-axis end, the spring will gradually reset and pull the box body back. In this way, the reciprocating cycle makes the box body move back and forth in the horizontal position, accelerating the speed of the sand and gravel passing through the coarse sieve and the fine sieve. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the screening device for road construction of the present utility model;

[0019] Figure 2 is a schematic structural diagram of the cam and the box body of the present utility model in cooperation;

[0020] Figure 3 is a schematic structural diagram of the installation position of the telescopic rod of the present utility model;

[0021] Figure 4 is an internal cross-sectional view of the screening assembly of the present utility model in the screening state;

[0022] Figure 5 is an internal cross-sectional view of the screening assembly of the present utility model in the discharging state;

[0023] Figure 6 is a schematic structural diagram of the box body of the present utility model;

[0024] Figure 7 is a schematic structural diagram of the sieve plate of the present utility model.

[0025] Reference numerals in the drawings: 1, base; 11, side seat; 12, slide bar; 2, box body; 21, top cover; 22, material guiding cover; 23, rotating shaft; 24, bottom opening; 3, screening assembly; 31, slide rail; 311, chute; 32, sieve plate; 321, turning handle; 322, coarse sieve; 33, discharge frame; 331, discharge port; 332, inclined plate; 333, baffle; 4, fine sieve; 5, groove bar; 51, door panel; 6, motor; 61, cam; 7, telescopic rod; 71, spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0027] The utility model provides a screening device for highway construction, as Figure 1 and Figure 2 shown, which includes a base 1, a box body 2, a screening component 3 and a driving component. A side seat 11 is fixedly connected to one side of the base 1. The box body 2 is slidably connected to the upper end of the base 1. A plurality of screening components 3 are arranged vertically inside the box body 2. The screening component 3 includes a slide rail 31, a sieve plate 32 and a discharge frame 33. The slide rail 31 is fixedly connected to the inner side of the box body 2. The sieve plate 32 is slidably connected in the slide rail 31. A coarse sieve mesh 322 is arranged at one end of the inner side surface of the sieve plate 32. The discharge frame 33 is fixed on the outer side surface of the box body 2. A discharge port 331 is formed through the connection part of the discharge frame 33 and the box body 2. An inclined plate 332 is fixedly connected to the position at the bottom of the discharge port 331 on the inner side of the box body 2. The inclined plate 332 is inclined towards the bottom of the discharge port 331. An opening is formed between the inclined plate 332 and the inner wall of the opposite box body 2. A baffle 333 is fixedly connected to the position at the top of the discharge port 331 on the inner side of the box body 2. The driving component is arranged on one side of the side seat 11 and is used to push the box body 2 to slide horizontally back and forth. The sand and gravel to be screened and classified are added into the box body 2 through the opening of the top cover 21. The sand and gravel will fall on the sieve plate 32 of the uppermost screening component 3. The aperture of the coarse sieve mesh 322 of each vertically arranged sieve plate 32 decreases sequentially downward. The sand and gravel larger than the aperture of the coarse sieve mesh 322 of the uppermost layer will remain on the coarse sieve mesh 322, and the sand and gravel smaller than the aperture of the coarse sieve mesh 322 of the uppermost layer will pass through the coarse sieve mesh 322 and fall through the opening between the inclined plate 332 and the inner wall of the opposite box body 2 onto the coarse sieve mesh 322 of the next layer, and so on. The sand and gravel with the smallest particle size will pass through the fine sieve mesh 4 at the bottom of the box body 2 and enter the bottom of the box body 2.

[0028] As Figure 4 and Figure 5 shown, the slide rail 31 is arc-shaped, the shape of the sieve plate 32 corresponds to the shape of the slide rail 31. A chute 311 is formed inside the slide rail 31. The chute 311 penetrates through the side surface of the box body 2. As Figure 7 shown, a turning handle 321 is fixedly connected to one side of the sieve plate 32. A plurality of rotating shafts 23 are fixedly connected to both sides of the box body 2. The turning handle 321 passes through the chute 311 and is rotatably connected to the rotating shaft 23. The aperture of the coarse sieve mesh 322 on the sieve plates 32 of the screening components 3 arranged sequentially from top to bottom gradually becomes smaller, and the turning handles 321 of the screening components 3 arranged sequentially from top to bottom are staggered on both sides of the box body 2. After the sand and gravel are screened by the screening component 3, the corresponding turning handles 321 of each layer of sieve plate 32 are rotated respectively, so that the sieve plate 32 rotates upward along the chute 311. The sieve plate 32 is inclined downward towards the discharge port 331, and the sand and gravel with the corresponding particle size on the sieve plate 32 will flow out through the discharge port 331 into the discharge frame 33. A collection container is placed on one side of the discharge frame 33 for collection, so as to achieve the purpose of classifying and collecting sand and gravel with different particle sizes.

[0029] AsFigure 2 and Figure 3 As shown in Figure 3 , a slide bar 12 is fixedly connected to the upper surface of the base 1. The box body 2 is slidably connected to the base 1 through the slide bar 12. The driving assembly includes a motor 6 and a telescopic rod 7. The motor 6 is fixed on one side of the vertical plate of the side seat 11. A cam 61 is fixedly connected to the output shaft of the motor 6. The telescopic rod 7 is fixedly arranged on the side of the side seat 11. A spring 71 is sleeved on the periphery of the telescopic rod 7. One end of the telescopic rod 7 is fixedly connected to the box body 2. Starting the motor 6 can drive the cam 61 to rotate. The cam 61 will push the box body 2 to slide along the slide bar 12 in a direction away from the side seat 11. When the long axis end of the cam 61 is in contact with the box body 2, the box body 2 reaches the farthest position. At this time, the telescopic rod 7 is in an extended state and the spring 71 is in a stretched state. When the contact end of the cam 61 changes from the long axis end to the short axis end with the box body 2, the spring 71 will gradually reset and pull the box body 2 back. This reciprocating cycle makes the box body 2 move back and forth in the horizontal position, accelerating the speed of the sand and gravel passing through the coarse screen 322 and the fine screen 4.

[0030] As Figure 4 and Figure 5 shown in Figure 5 , a fine screen 4 is fixedly connected to the inner bottom end of the box body 2. As Figure 6 shown in Figure 6 , a bottom opening 24 is formed on the side of the bottom end of the box body 2. Groove bars 5 are arranged on both sides of the bottom opening 24. The groove bars 5 are fixed on the box body 2. A door panel 51 is slidably connected to the inner side of the groove bars 5. Sliding the door panel 51 upward can take out the sand and gravel with the smallest particle size from the bottom opening 24.

[0031] As Figure 1 and Figure 4 shown in Figure 4 , a top cover 21 is fixedly connected to the upper end of the box body 2. A material guiding cover 22 is fixedly connected to the inner top end of the box body 2. The sand and gravel can fall onto the center position of the sieve plate 32 through the inwardly inclined material guiding cover 22.

[0032] Adopting the present utility model, as Figure 1 and Figure 2As shown, the sand and gravel to be screened and classified are added into the box body 2 through the opening of the top cover 21. The sand and gravel will fall on the sieve plate 32 of the uppermost screening component 3. The aperture of the coarse sieve mesh 322 of each vertically arranged sieve plate 32 decreases successively downward. The sand and gravel larger than the aperture of the uppermost coarse sieve mesh 322 will remain on the coarse sieve mesh 322, and the sand and gravel smaller than the aperture of the uppermost coarse sieve mesh 322 will pass through the coarse sieve mesh 322 and fall onto the coarse sieve mesh 322 of the next layer through the opening between the inclined plate 332 and the inner wall of the opposite box body 2. And so on, the sand and gravel with the smallest particle size will pass through the fine sieve mesh 4 at the bottom of the box body 2 and enter the bottom of the box body 2. Starting the motor 6 can drive the cam 61 to rotate. The cam 61 will push the box body 2 to slide along the slide bar 12 in the direction away from the side seat 11. When the long axis end of the cam 61 is in contact with the box body 2, the box body 2 reaches the farthest position. At this time, the telescopic rod 7 is in the extended state and the spring 71 is in the stretched state. When the contact end of the cam 61 changes from the long axis end to the short axis end, the spring 71 will gradually reset and pull the box body 2 back. In this way, the reciprocating cycle is repeated, so that the box body 2 moves back and forth in the horizontal position, which speeds up the speed of the sand and gravel passing through the coarse sieve mesh 322 and the fine sieve mesh 4. After the sand and gravel are screened by the screening component 3, rotate the turning handle 321 corresponding to each layer of sieve plate 32 respectively, so that the sieve plate 32 rotates upward along the chute 311, and the sieve plate 32 is inclined downward toward the discharge port 331. The sand and gravel with the corresponding particle size on the sieve plate 32 will flow out through the discharge port 331 into the discharge frame 33. Place a collection container on one side of the discharge frame 33 for collection. Slide the door panel 51 upward, and the sand and gravel with the smallest particle size can be taken out from the bottom opening 24, so as to achieve the purpose of classifying and collecting sand and gravel with different particle sizes.

[0033] Although the embodiments of the present invention have been disclosed as above, it is not limited to the applications listed in the specification and embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the field, other modifications can be easily achieved. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to the specific details and the examples shown and described here.

Claims

1. A screening device for highway construction, characterized in that, It includes a base (1), a box body (2), a screening component (3) and a driving component. One side of the base (1) is fixedly connected with a side seat (11). The box body (2) is slidably connected to the upper end of the base (1). A plurality of the screening components (3) are arranged vertically inside the box body (2). The screening component (3) includes a slide rail (31), a sieve plate (32) and a discharge frame (33). The slide rail (31) is fixedly connected to the inner side of the box body (2). The sieve plate (32) is slidably connected in the slide rail (31). One end of the inner side surface of the sieve plate (32) is provided with a coarse sieve mesh (322). The discharge frame (33) is fixed on the outer side surface of the box body (2). A discharge port (331) is formed through the connection part of the discharge frame (33) and the box body (2). An inclined plate (332) is fixedly connected to the position at the bottom of the discharge port (331) inside the box body (2). A baffle (333) is fixedly connected to the position at the top of the discharge port (331) inside the box body (2). The driving component is arranged on one side of the side seat (11), and the driving component is used to push the box body (2) to slide horizontally back and forth.

2. The screening device for highway construction according to claim 1, characterized in that, The inclined plate (332) is inclined towards the bottom of the discharge port (331), and an opening is formed between the inclined plate (332) and the inner wall of the box body (2) facing it.

3. A screening device for highway construction according to claim 1, wherein, The slide rail (31) is arc-shaped, the shape of the sieve plate (32) corresponds to the shape of the slide rail (31), and a chute (311) is opened inside the slide rail (31), and the chute (311) penetrates the side surface of the box body (2).

4. The screening device for highway construction according to claim 3, characterized in that, One side of the sieve plate (32) is fixedly connected with a turning handle (321). A plurality of rotating shafts (23) are fixedly connected to both sides of the box body (2). The turning handle (321) passes through the chute (311) and is rotatably connected to the rotating shaft (23).

5. The screening device for highway construction according to claim 4, wherein, The aperture of the coarse sieve mesh (322) on the sieve plate (32) of the screening components (3) arranged in sequence from top to bottom gradually becomes smaller, and the turning handles (321) of the screening components (3) arranged in sequence from top to bottom are staggered on both sides of the box body (2).

6. The screening device for highway construction according to claim 1, characterized in that, A slide bar (12) is fixedly connected to the upper surface of the base (1). The box body (2) is slidably connected to the base (1) through the slide bar (12).

7. A screening device for highway construction according to claim 1, characterized in that, The driving component includes a motor (6) and a telescopic rod (7). The motor (6) is fixed on one side of the vertical plate of the side seat (11). A cam (61) is fixedly connected to the output shaft of the motor (6). The telescopic rod (7) is fixedly arranged on the side surface of the side seat (11). A spring (71) is sleeved on the periphery of the telescopic rod (7). One end of the telescopic rod (7) is fixedly connected to the box body (2).

8. A screening device for highway construction according to claim 1, characterized in that, A fine sieve mesh (4) is fixedly connected to the inner bottom end of the box body (2), and a bottom opening (24) is formed on the side surface of the bottom end of the box body (2).

9. The screening device for highway construction according to claim 8, wherein, On both sides of the bottom opening (24), there are groove bars (5) provided, the groove bars (5) are fixed on the box body (2), and a door panel (51) is slidably connected to the inner side of the groove bars (5).

10. A screening device for highway construction according to claim 1, characterized in that, The upper end of the box body (2) is fixedly connected with a top cover (21), and a material guiding cover (22) is fixedly connected to the inner top end of the box body (2).

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