Sand screening device for civil construction

Abstract

The utility model relates to the technical field of sand screening devices, in particular to a civil construction sand screening device which can efficiently screen sand and remove dust and soil mixed in the sand and is good in practicability. Comprising a rack and a screen, the screen is elastically installed on the rack through the multiple springs, the rack is obliquely arranged, the sealing cover covers the rack and the screen, the bottom end of the screen extends out of the sealing cover, the feeding hopper is arranged on the sealing cover and located at the upper end of the screen, and the fan is arranged on the upper end of the feeding hopper. An air inlet is formed in the side wall of the end, close to the feeding hopper, of the sealing cover, an air outlet is formed in the side wall of the end, away from the feeding hopper, of the sealing cover, the fan is rotationally installed on the rack and located in the air inlet of the sealing cover, the driving assembly is installed on the rack and drives the fan to rotate, and the air outlet pipe is installed on the air outlet. And the filter cloth is arranged on the outer port of the air outlet pipe.

Description

Technical Field

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

[0002] During civil construction, construction sand needs to be screened, and a civil construction sand screening device is needed for screening. For example, a construction sand screening device proposed in the Chinese utility model patent with publication number CN219765938U, the device rotates the motor output shaft, and then the turntable rotates, driving the annular limiting block to move back and forth, causing the baffle to shake back and forth, driving the square frame and the sand screening net to shake back and forth, and then the sand accumulated on the top of the sand screening net will shake, and the sand screening net will screen the required sand into the U-shaped slide bucket, and the screened sand will move to the discharge port for discharge, realizing automatic sand screening.

[0003] However, the above device can only screen the sand according to the particle size, and cannot remove the dust and soil mixed in the sand, so it needs to be improved. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a civil engineering construction sand screening device which can efficiently screen sand and remove dust and soil mixed therein and has good practicality.

[0005] The utility model discloses a civil engineering construction sand screening device, comprising a frame and a screen; and also comprising a plurality of springs, a sealing cover, a feed hopper, a fan, an air outlet pipe, a filter cloth and a driving assembly, wherein the screen is elastically mounted on the frame through a plurality of springs, the frame is tilted, the sealing cover covers the frame and the screen, the bottom end of the screen extends out of the sealing cover, a feed hopper is arranged on the sealing cover, the feed hopper is located at the upper end of the screen, an air inlet is arranged on the side wall of one end of the sealing cover close to the feed hopper, an air outlet is arranged on the side wall of one end of the sealing cover away from the feed hopper, the fan is rotatably mounted on the frame, the fan is located in the air inlet of the sealing cover, a driving assembly is mounted on the frame, the driving assembly drives the fan to rotate, the air outlet pipe is arranged on the air outlet, and the filter cloth is arranged on the outside of the air outlet pipe The filter unit is configured to be a fan that is configured to be operable to filter the sand from one another and to filter the sand from one another. The filter unit is configured to be operable to filter the sand from one another and to filter the sand from one another. The filter unit is configured to be operable to filter the sand from one another and to filter the sand from one another. The filter unit is configured to be operable to filter the sand from one another and to filter the sand from one another.

[0006] Preferably, the driving assembly includes a motor, a driving wheel, a driven wheel and a transmission belt. The motor is mounted on a frame, the driven wheel is concentrically mounted on the output shaft of the motor, the fan is rotatably mounted on the frame via a rotating shaft, the driven wheel is concentrically mounted on the rotating shaft of the fan, and the transmission belt is sleeved on the driving wheel and the driven wheel; the output shaft of the motor drives the driving wheel to rotate, the driving wheel drives the driven wheel to rotate via the transmission belt, and the driven wheel drives the fan to rotate, thereby driving the fan. The technology is mature and reliable, and has good practicality.

[0007] Preferably, it also includes a wheel plate, multiple levers and a cross bar, the wheel plate is concentrically mounted on the output shaft of the motor, multiple levers are evenly arranged on the circumference of the wheel plate, the multiple levers are arranged along the radial direction of the wheel plate, the cross bar is mounted on the side wall of the screen, and the multiple levers all move the cross bar; when the motor is running, the output shaft of the motor drives the wheel plate and the multiple levers to rotate, so that the multiple levers move the cross bar in turn, thereby pushing the screen to swing left and right, thereby improving the sand screening effect of the screen.

[0008] Preferably, it also includes a swing arm and a pull rod, the inner end of the swing arm is connected to the output shaft of the motor, the outer end of the swing arm is rotatably connected to the lower end of the pull rod, and the upper end of the pull rod is rotatably connected to the side wall of the screen; when the motor is running, the output shaft of the motor drives the swing arm to rotate, and the swing arm drives the screen to vibrate reciprocatingly up and down through the pull rod, thereby improving the sand screening effect of the screen.

[0009] Preferably, it also includes a plurality of blocking plates, which are installed on the screen; the plurality of blocking plates block the sand on the screen, increase the time the sand stays on the screen, screen out as much small-grained sand as possible, and improve the sand screening effect.

[0010] Preferably, two side plates are further included, and side plates are arranged on both sides of the upper end surface of the screen; by arranging the two side plates, the sand on the screen is restrained and guided to prevent the sand from scattering to the outside of the screen, thereby improving practicality.

[0011] Preferably, it also includes a discharge chute, which is installed on the frame and located below the screen. The discharge chute is inclined and the lower end of the discharge chute extends out of the side wall of the sealing cover. The discharge chute guides the small particles of sand sifted out from the screen to the outside of the sealing cover, which is convenient for discharging and has good practicality.

[0012] Compared with the prior art, the utility model has the following beneficial effects: when working, sand is put into the sealing cover through the feed hopper and falls on the upper high position of the screen. A dispersion mechanism is arranged in the feed hopper to evenly distribute the sand on the upper end of the screen. The sand flows downward along the screen. In the process of sand flowing, small particles of sand fall into the bottom of the sealing cover through the sieve holes of the screen, and large particles of sand intercepted by the screen flow out of the outside of the sealing cover. At the same time, the driving component drives the fan to rotate and blow air to the bottom of the screen, so that the wind blows through the sieve holes of the screen toward the air outlet pipe and the filter cloth, so that the dust and soil mixed in the sand are discharged through the air outlet pipe along with the wind, and the filter cloth intercepts and filters the dust and soil in the wind to prevent the dust and soil from diffusing into the air to cause dust pollution, and the utility model has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front sectional structural schematic diagram of the utility model;

[0014] Figure 2 It is a partial cross-sectional structural schematic diagram of the utility model;

[0015] Figure 3 It is a schematic diagram of the axonometric structure of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the utility model when the sealing cover is removed;

[0017] Figure 5 yes Figure 4 A schematic diagram of the local enlarged structure at point A in the middle;

[0018] Figure 6 It is a structural schematic diagram of the fan and drive components.

[0019] Markings in the attached drawings: 1. frame; 2. screen; 3. spring; 4. sealing cover; 5. feed hopper; 6. fan; 7. air outlet pipe; 8. filter cloth; 9. motor; 10. driving wheel; 11. driven wheel; 12. transmission belt; 13. wheel plate; 14. lever; 15. cross bar; 16. swing arm; 17. pull rod; 18. blocking plate; 19. side plate; 20. discharge chute. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0021] Example 1

[0022] like Figures 1 to 4As shown, a civil engineering construction sand screening device includes a frame 1 and a screen 2; it also includes multiple springs 3, a sealing cover 4, a feed hopper 5, a fan 6, an air outlet duct 7, a filter cloth 8 and a driving assembly. The screen 2 is elastically mounted on the frame 1 through multiple springs 3, the frame 1 is tilted, the sealing cover 4 covers the frame 1 and the screen 2, and the bottom end of the screen 2 extends out of the sealing cover 4. A feed hopper 5 is arranged on the sealing cover 4, and the feed hopper 5 is located at the upper end of the screen 2. An air inlet is arranged on the side wall of the sealing cover 4 at one end close to the feed hopper 5, and an air outlet is arranged on the side wall of the sealing cover 4 at one end away from the feed hopper 5. The fan 6 is rotatably mounted on the frame 1, and the fan 6 is located in the air inlet of the sealing cover 4. A driving assembly is installed on the frame 1, and the driving assembly drives the fan 6 to rotate. The air outlet duct 7 is installed on the air outlet. The filter cloth 8 is installed on the outer port of the air outlet pipe 7; the driving assembly includes a motor 9, a driving wheel 10, a driven wheel 11 and a transmission belt 12, the motor 9 is installed on the frame 1, the driven wheel 11 is concentrically installed on the output shaft of the motor 9, the fan 6 is rotatably installed on the frame 1 through the rotating shaft, the driven wheel 11 is concentrically installed on the rotating shaft of the fan 6, and the transmission belt 12 is sleeved on the driving wheel 10 and the driven wheel 11; it also includes a plurality of blocking plates 18, and the plurality of blocking plates 18 are installed on the screen 2; it also includes two side plates 19, and the side plates 19 are arranged on both sides of the upper end surface of the screen 2; it also includes a discharge trough 20, the discharge trough 20 is installed on the frame 1, the discharge trough 20 is located below the screen 2, the discharge trough 20 is inclined, and the lower end of the discharge trough 20 extends out of the side wall of the sealing cover 4.

[0023] During operation, sand is put into the sealing cover 4 through the feed hopper 5 and falls on the upper high position of the screen 2. A dispersion mechanism is arranged in the feed hopper 5 to evenly distribute the sand on the upper end of the screen 2. The sand flows downward along the screen 2. A plurality of blocking plates 18 block the sand on the screen 2 to increase the time the sand stays on the screen 2 so that as many small particles of sand as possible are screened out to improve the sand screening effect. The two side plates 19 constrain and guide the sand on the screen 2 to prevent the sand from scattering to the outside of the screen 2. During the flow of the sand, the small particles of sand fall into the bottom of the sealing cover 4 through the sieve holes of the screen 2, and the discharge trough 20 screens the sand. The small particles of sand sieved on the net 2 are guided to be discharged to the outside of the sealing cover 4, and the large particles of sand intercepted by the screen 2 flow out of the outside of the sealing cover 4. At the same time, the output shaft of the motor 9 drives the driving wheel 10 to rotate, and the driving wheel 10 drives the driven wheel 11 to rotate through the transmission belt 12, and the driven wheel 11 drives the fan 6 to rotate. The fan 6 rotates to blow air toward the bottom of the screen 2, so that the wind passes through the sieve holes of the screen 2 to the air outlet pipe 7 and the filter cloth 8, so that the dust and soil mixed in the sand are discharged through the air outlet pipe 7 with the wind, and the filter cloth 8 intercepts and filters the dust and soil in the wind to prevent the dust and soil from diffusing into the air and causing dust pollution.

[0024] Example 2

[0025] like Figures 4 to 6 As shown, on the basis of Example 1, it also includes a wheel plate 13, a plurality of shifting rods 14 and a cross bar 15, the wheel plate 13 is concentrically installed on the output shaft of the motor 9, a plurality of shifting rods 14 are evenly arranged on the circumference of the wheel plate 13, the plurality of shifting rods 14 are arranged along the radial direction of the wheel plate 13, the cross bar 15 is installed on the side wall of the screen 2, and the plurality of shifting rods 14 all shift the cross bar 15; it also includes a swing arm 16 and a pull rod 17, the inner end of the swing arm 16 is connected to the output shaft of the motor 9, the outer end of the swing arm 16 is rotatably connected to the lower end of the pull rod 17, and the upper end of the pull rod 17 is rotatably connected to the side wall of the screen 2.

[0026] When the motor 9 is running, the output shaft of the motor 9 drives the wheel plate 13 and multiple levers 14 to rotate, so that the multiple levers 14 sequentially shift the cross bar 15, thereby pushing the screen 2 to swing left and right. When the motor 9 is running, the output shaft of the motor 9 drives the swing arm 16 to rotate, and the swing arm 16 drives the screen 2 to vibrate up and down through the pull rod 17, thereby improving the sand screening effect of the screen 2.

[0027] like Figures 1 to 6 As shown, the utility model is a civil engineering construction sand screening device. When it is working, first, sand is put into the sealing cover 4 through the feed hopper 5 and evenly distributed on the upper end of the screen 2. When the motor 9 is running, the output shaft of the motor 9 drives the wheel plate 13 and multiple levers 14 to rotate, so that the multiple levers 14 sequentially shift the cross bar 15, thereby pushing the screen 2 to swing left and right, and the output shaft of the motor 9 drives the swing arm 16 to rotate. The swing arm 16 drives the screen 2 to vibrate up and down through the pull rod 17, and then the sand flows downward along the screen 2. In the process of sand flowing, small particles of sand fall into the bottom of the sealing cover 4 through the sieve holes of the screen 2, and the discharge chute 20 will screen The small particles of sand sieved on the net 2 are guided to be discharged from the outside of the sealing cover 4, and then the large particles of sand intercepted by the screen 2 flow out of the outside of the sealing cover 4. At the same time, the output shaft of the motor 9 drives the driving wheel 10 to rotate, and the driving wheel 10 drives the driven wheel 11 to rotate through the transmission belt 12. The driven wheel 11 drives the fan 6 to rotate, and the fan 6 rotates to blow air toward the bottom of the screen 2, so that the wind passes through the sieve holes of the screen 2 to the air outlet pipe 7 and the filter cloth 8, so that the dust and soil mixed in the sand are discharged through the air outlet pipe 7 with the wind, and finally the filter cloth 8 intercepts and filters the dust and soil in the wind to prevent the dust and soil from diffusing into the air and causing dust pollution.

[0028] The main functions achieved by this utility model are:

[0029] 1. Able to efficiently screen sand and remove the dust and soil mixed in it;

[0030] 2. The screen can vibrate left and right and up and down, with good sand screening effect;

[0031] 3. It can prevent dust and soil in the wind from spreading into the air and causing dust pollution.

[0032] The installation method, connection method or setting method of the civil engineering construction sand screening device of the utility model are all common mechanical methods, and any method that can achieve its beneficial effects can be implemented; the screen 2, spring 3, feed hopper 5, fan 6, filter cloth 8, motor 9, driving wheel 10, driven wheel 11, and transmission belt 12 of the civil engineering construction sand screening device of the utility model are purchased on the market, and technicians in the industry only need to install and operate them according to the accompanying instruction manual, without the need for creative labor by technicians in this field.

[0033] All technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0034] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A sand screening device for civil engineering construction, comprising a frame (1) and a screen (2); characterized in that: The invention also comprises a plurality of springs (3), a sealing cover (4), a feed hopper (5), a fan (6), an air outlet pipe (7), a filter cloth (8) and a driving assembly. The screen (2) is elastically mounted on the frame (1) through the plurality of springs (3). The frame (1) is tilted. The sealing cover (4) covers the frame (1) and the screen (2). The bottom end of the screen (2) extends out of the sealing cover (4). The feed hopper (5) is arranged on the sealing cover (4). The feed hopper (5) is located on the screen (2). ), an air inlet is arranged on a side wall of one end of the sealing cover (4) close to the feed hopper (5), an air outlet is arranged on a side wall of one end of the sealing cover (4) away from the feed hopper (5), a fan (6) is rotatably mounted on the frame (1), the fan (6) is located in the air inlet of the sealing cover (4), a driving assembly is mounted on the frame (1), the driving assembly drives the fan (6) to rotate, an air outlet pipe (7) is mounted on the air outlet, and a filter cloth (8) is mounted on an outer end of the air outlet pipe (7).

2. A civil engineering construction sand screening device as claimed in claim 1, characterized in that: The driving assembly comprises a motor (9), a driving wheel (10), a driven wheel (11) and a transmission belt (12); the motor (9) is mounted on a frame (1); the driven wheel (11) is coaxially mounted on an output shaft of the motor (9); the fan (6) is rotatably mounted on the frame (1) via a rotating shaft; the driven wheel (11) is coaxially mounted on the rotating shaft of the fan (6); and the transmission belt (12) is sleeved on the driving wheel (10) and the driven wheel (11).

3. A civil engineering construction sand screening device as claimed in claim 2, characterized in that: The invention also comprises a wheel plate (13), a plurality of shifting rods (14) and a cross rod (15); the wheel plate (13) is concentrically mounted on the output shaft of the motor (9); a plurality of shifting rods (14) are evenly arranged on the circumference of the wheel plate (13); the plurality of shifting rods (14) are arranged along the radial direction of the wheel plate (13); the cross rod (15) is mounted on the side wall of the screen (2); and the plurality of shifting rods (14) all shift the cross rod (15).

4. A civil engineering construction sand screening device as claimed in claim 2, characterized in that: It also includes a swing arm (16) and a pull rod (17), wherein the inner end of the swing arm (16) is connected to the output shaft of the motor (9), the outer end of the swing arm (16) is rotatably connected to the lower end of the pull rod (17), and the upper end of the pull rod (17) is rotatably connected to the side wall of the screen (2).

5. A civil engineering construction sand screening device as claimed in claim 1, characterized in that: It also comprises a plurality of blocking plates (18), wherein the plurality of blocking plates (18) are installed on the screen (2).

6. A civil engineering construction sand screening device as claimed in claim 1, characterized in that: It also comprises two side panels (19), with the side panels (19) being arranged on both sides of the upper end surface of the screen (2).

7. A civil engineering construction sand screening device as claimed in claim 1, characterized in that: The machine also comprises a discharge chute (20), which is mounted on the frame (1) and is located below the screen (2). The discharge chute (20) is tilted and the lower end of the discharge chute (20) extends out of the side wall of the sealing cover (4).

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