Multi-stage sand and gravel screening device for civil construction

Abstract

The invention discloses a multi-stage sand and gravel screening device for civil engineering construction, comprising a frame, a row of slide slots are arranged on both sides of the frame, a vibrating connecting rod is arranged in each slide slot in each row of the slide slots, the outer end of each row of the vibrating connecting rods is connected with a vibrating connecting rod, and a first connecting rod is arranged between the upper ends of the two vibrating connecting rods; a second connecting rod, a driving mechanism and a loading bin are arranged on the frame, a cam is arranged at the driving end of the driving mechanism, a V-shaped connecting rod is arranged on the second connecting rod, one end of the V-shaped connecting rod is in contact with and matched with the cam, and the other end of the V-shaped connecting rod is arranged A U-shaped groove is provided, and the U-shaped groove is clamped on the first connecting rod. The frame is hinged with a primary screen and a secondary screen arranged obliquely downward from top to bottom. The upper end of the primary screen is located below the outlet of the upper bin, and the upper end of the secondary screen is located below the lower end of the primary screen. The middle parts of the primary screen and the second screen are respectively connected to the corresponding vibrating connecting rods, and a primary sliding material collecting plate and a secondary sliding material collecting plate are arranged in the frame from top to bottom. The primary sliding material collecting plate is located below the primary screen, and the secondary sliding material collecting plate is located below the secondary screen.

Description

Technical Field

[0001] The invention belongs to the technical field of road construction warning, and in particular relates to a multi-stage sand and gravel screening device for civil construction. Background Art

[0002] With the rapid development of science and technology, the civil construction industry uses a large number of automated equipment to help workers complete related tasks, which greatly improves construction efficiency and reduces the labor intensity of workers. Sand and gravel are indispensable raw materials in the process of civil construction. When using sand and gravel, they need to be screened according to their size for subsequent use. At present, there are many sand and gravel screening devices on the market. Although there are many types and quantities, most of the construction screening devices cannot achieve multi-stage screening, resulting in insufficient screening results. Therefore, it is necessary to design a sand and gravel screening device for civil construction that can screen sand and gravel at multiple levels and occupy a small area. Summary of the invention

[0003] The purpose of the present invention is to provide a multi-stage sand and gravel screening device for civil engineering construction, so as to solve the problem that the existing sand and gravel screening device is difficult to perform multi-stage screening.

[0004] In order to solve the above technical problems, the present invention discloses a multi-stage sand and gravel screening device for civil construction, including a frame, a row of slide slots are arranged on both sides of the frame, a vibrating connecting rod is arranged in each slide slot in each row of the slide slots, the outer end of each row of the vibrating connecting rods is connected to a vibrating connecting rod, and a first connecting rod is arranged between the upper ends of the two vibrating connecting rods; a second connecting rod, a driving mechanism and a loading bin are arranged on the frame, a cam is arranged at the driving end of the driving mechanism, a V-shaped connecting rod is hinged on the second connecting rod, one end of the V-shaped connecting rod is in contact with the cam, and the V-shaped connecting rod is in contact with the cam. The other end of the frame is provided with a U-shaped groove, which is clamped on the first connecting rod, and the frame is hinged with a primary screen and a secondary screen arranged obliquely downward from top to bottom, the upper end of the primary screen is located below the outlet of the upper bin, the upper end of the secondary screen is located below the lower end of the primary screen, the middle parts of the primary screen and the second screen are respectively connected to the corresponding vibrating connecting rods, and a primary sliding material collecting plate and a secondary sliding material collecting plate are arranged in sequence from top to bottom in the frame, the primary sliding material collecting plate is located below the primary screen, and the secondary sliding material collecting plate is located below the secondary screen.

[0005] The technical solution of the present invention also has the following characteristics:

[0006] As a further improvement of the technical solution of the present invention, a three-stage screen arranged obliquely is hinged in the frame, the upper end of the three-stage screen is located below the lower end of the two-stage screen, and the middle part of the three-stage screen is connected to the corresponding vibration connecting rod; a three-stage sliding material collecting plate is arranged in the frame, and the three-stage sliding material collecting plate is located below the three-stage screen.

[0007] As a further improvement of the technical solution of the present invention, the driving mechanism is a motor.

[0008] As a further improvement of the technical solution of the present invention, an adjusting stud is provided at one end of the V-shaped connecting rod, and the adjusting stud is in contact with and cooperates with the cam.

[0009] As a further improvement of the technical solution of the present invention, connecting plates are provided below both ends of the first connecting rod, a plurality of springs are provided on the lower side of the connecting plates, and the lower ends of the springs are in contact with the frame.

[0010] As a further improvement of the technical solution of the present invention, a nozzle is arranged on the upper side of the frame, the nozzle is connected to a water pipe, and the water pipe is connected to a pump.

[0011] As a further improvement of the technical solution of the present invention, a filter is provided at the inlet of the pump.

[0012] As a further improvement of the technical solution of the present invention, a sliding trough is provided on the side of the upper bin.

[0013] Compared with the prior art, the multi-stage sand and gravel screening device for civil construction of the present invention can perform multi-stage screening of sand and gravel to ensure the needs of different purposes, and can also vibrate to ensure that the screening work can proceed smoothly, and has good application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0015] Figure 1 It is a front view of a multi-stage sand and gravel screening device for civil engineering construction of the present invention;

[0016] Figure 2 It is a rear view of a multi-stage sand and gravel screening device for civil engineering construction of the present invention;

[0017] Figure 3 The invention discloses a side view of a multi-stage sand and gravel screening device for civil engineering construction.

[0018] In the figure: 1. frame, 2. driving mechanism, 3. cam, 4. second connecting rod, 5. first connecting rod, 6. V-shaped connecting rod, 7. upper hopper, 8. nozzle, 9. primary screen, 10. connecting plate, 11. primary aggregate collecting plate, 12. secondary screen, 13. secondary aggregate collecting plate, 14. vibrating connecting rod, 15. vibrating connecting rod, 16. tertiary sliding material collecting plate, 17. spring, 18. tertiary screen, 19. water pipe, 20. sliding material trough, 21. adjusting bolt, 22. pump, 23. filter. DETAILED DESCRIPTION

[0019] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0020] In the description of the present invention, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0021] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0022] like Figure 1 As shown, a multi-stage sand and gravel screening device for civil engineering construction of the present invention comprises a frame 1, a row of slide slots are arranged on both sides of the frame 1, a vibrating connecting rod 15 is arranged in each slide slot in each row of slide slots, a vibrating connecting rod 14 is connected to the outer end of each row of vibrating connecting rods 15, and a first connecting rod 5 is arranged between the upper ends of the two vibrating connecting rods 14; a second connecting rod 4, a driving mechanism 2 and a loading bin 7 are arranged on the frame 1, a cam 3 is arranged at the driving end of the driving mechanism 2, a V-shaped connecting rod 6 is arranged on the second connecting rod 4, one end of the V-shaped connecting rod 6 is in contact with the cam 3, and a U-shaped connecting rod 6 is arranged at the other end of the V-shaped connecting rod 6 shaped groove, the U-shaped groove is clamped on the first connecting rod 5, and the frame 1 is hinged with a primary screen 9 and a secondary screen 12 arranged obliquely downward from top to bottom. The upper end of the primary screen 9 is located below the outlet of the upper bin 7, and the upper end of the secondary screen 12 is located below the lower end of the primary screen 9. The middle parts of the primary screen 9 and the second screen 12 are respectively connected to the corresponding vibrating connecting rod 15, and a primary sliding material collecting plate 11 and a secondary sliding material collecting plate 13 are arranged in the frame 1 from top to bottom. The primary sliding material collecting plate 11 is located below the primary screen 9, and the secondary sliding material collecting plate 13 is located below the secondary screen 12.

[0023] When sand and gravel need to be screened during civil engineering construction, the sand and gravel to be screened are poured into the upper bin 7, and the sand and gravel roll down to the primary screen 9 through the upper bin 7. The drive mechanism 2 is started, and the drive mechanism 2 drives the V-shaped connecting rod 6 to swing periodically through the cam 3, and the V-shaped connecting rod 6 drives the first connecting rod 5 to vibrate up and down. The fine sand that falls through the primary screen 9 falls into the primary sliding material collection plate 11 and flows out through the outlet to complete the primary screening. Similarly, the secondary screening is completed. Since one end of the screen is hinged and vibrates through the middle vibration connecting rod, the amplitude at one end of the principle hinge is large, and the sand and gravel are easier to separate after passing through different amplitude areas. The sieve holes on the primary screen 9 are smaller than the sieve holes on the secondary screen 12.

[0024] like Figure 1 As shown, a multi-stage sand and gravel screening device for civil construction of the present invention is provided, and a three-stage screen 18 arranged obliquely is hinged in the frame 1, the upper end of the three-stage screen 18 is located below the lower end of the two-stage screen 12, and the middle part of the three-stage screen 18 is connected to the corresponding vibration connecting rod 15; a three-stage sliding material collecting plate 16 is arranged in the frame 1, and the three-stage sliding material collecting plate 16 is located below the three-stage screen 18.

[0025] Three-stage screening can be performed, and the mesh holes of the third-stage screen 18 are larger than the mesh holes on the second-stage screen 12, so that the screening can be more refined.

[0026] like Figure 1 As shown, in the multi-stage sand and gravel screening device for civil engineering construction of the present invention, the driving mechanism 2 is preferably a motor.

[0027] like Figure 2 and Figure 3 As shown, in a multi-stage sand and gravel screening device for civil engineering construction of the present invention, an adjusting stud 21 is provided at one end of a V-shaped connecting rod 6, and the adjusting stud 21 is in contact with and matched with a cam 3.

[0028] The insertion and extension of the stud 21 can be adjusted according to the conditions of the sand and stone, thereby changing the contact distance between the stud 21 and the cam 3, thereby achieving the adjustment of the amplitude.

[0029] like Figure 1 As shown, in a multi-stage sand and gravel screening device for civil engineering construction of the present invention, connecting plates 10 are arranged below both ends of the first connecting rod 5, and a plurality of springs 17 are arranged on the lower side of the connecting plate 10, and the lower ends of the springs 17 are in contact with the frame 1.

[0030] The spring 17 can play a shock absorbing role to ensure that the first connecting rod 5 can vibrate smoothly.

[0031] like Figure 1 As shown, in a multi-stage sand and gravel screening device for civil engineering construction of the present invention, a nozzle 8 is arranged on the upper side of a frame 1, the nozzle 8 is connected to a water pipe 19, and the water pipe 19 is connected to a pump 22.

[0032] The water is sprayed out through the nozzle 8 by utilizing the pump 22 and the water pipe 19, so as to facilitate the cleaning of the sand and the rolling down of the sand.

[0033] like Figure 1 As shown, in a multi-stage sand and gravel screening device for civil engineering construction of the present invention, a filter 23 is provided at the inlet of a pump 22 .

[0034] The filter 23 can prevent foreign matter from flowing in and causing clogging of the pump 22 .

[0035] like Figure 1 As shown, in a multi-stage sand and gravel screening device for civil engineering construction of the present invention, a sliding chute 20 is provided on the side of the upper bin 7.

[0036] Sand and gravel can be introduced into the upper bin 8 through the sliding chute 20.

[0037] Therefore, compared with the prior art, the multi-stage sand and gravel screening device for civil construction of the present invention can perform multi-stage screening of sand and gravel to ensure the needs of different purposes, and can also vibrate to ensure that the screening work can proceed smoothly, and has good application prospects.

[0038] The above description shows and describes several preferred embodiments of the invention, but as mentioned above, it should be understood that the invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention concept described herein through the above teachings or the technology or knowledge of the relevant field. Changes and modifications made by those skilled in the art should be within the scope of protection of the claims attached to the invention without departing from the spirit and scope of the invention.

Claims

1. A multi-stage sand and gravel screening device for civil engineering construction, characterized in that: The invention comprises a frame (1), wherein a row of slide grooves are arranged on both sides of the frame (1), each slide groove in each row of the slide grooves is provided with a vibration connecting rod (15), the outer end of each row of the vibration connecting rods (15) is connected to a vibration connecting rod (14), and a first connecting rod (5) is arranged between the upper ends of the two vibration connecting rods (14); a second connecting rod (4), a driving mechanism (2) and a loading bin (7) are arranged on the frame (1), a cam (3) is arranged on the driving end of the driving mechanism (2), and a V-shaped connecting rod (6) is arranged on the second connecting rod (4). ), one end of the V-shaped connecting rod (6) is in contact with the cam (3), the other end of the V-shaped connecting rod (6) is provided with a U-shaped groove, the U-shaped groove is clamped on the first connecting rod (5), and the frame (1) is hinged with a first screen (9) and a second screen (12) arranged obliquely downward from top to bottom, the upper end of the first screen (9) is located below the outlet of the upper bin (7), the upper end of the second screen (12) is located below the lower end of the first screen (9), and the middle parts of the first screen (9) and the second screen (12) are respectively connected to the corresponding vibration connecting rods. The frame (1) is connected with a connecting rod (15), and a first-level sliding material collecting plate (11) and a second-level sliding material collecting plate (13) are arranged in sequence from top to bottom. The first-level sliding material collecting plate (11) is located below the first-level screen (9), and the second-level sliding material collecting plate (13) is located below the second-level screen (12); the frame (1) is also hinged with a third-level screen (18) arranged obliquely, the upper end of the third-level screen (18) is located below the lower end of the second-level screen (12), and the middle part of the third-level screen (18) is connected to the corresponding vibration connecting rod (15); A three-stage sliding material collecting plate (16) is arranged in the frame (1), and the three-stage sliding material collecting plate (16) is located below the three-stage screen (18); the driving mechanism (2) is a motor; an adjusting stud (21) is arranged at one end of the V-shaped connecting rod (6), and the adjusting stud (21) is in contact with the cam (3); connecting plates (10) are arranged below both ends of the first connecting rod (5), and a plurality of springs (17) are arranged on the lower side of the connecting plate (10), and the lower ends of the springs (17) are in contact with the frame (1).

2. The multi-stage sand and gravel screening device for civil engineering construction according to claim 1, characterized in that: A nozzle (8) is provided on the upper side of the frame (1), the nozzle (8) is connected to a water pipe (19), and the water pipe (19) is connected to a pump (22).

3. The multi-stage sand and gravel screening device for civil engineering construction according to claim 2, characterized in that: The inlet of the pump (22) is provided with a filter (23).

4. The multi-stage sand and gravel screening device for civil engineering construction according to claim 1, characterized in that: A material sliding trough (20) is provided on the side of the upper material bin (7).

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