Sand screening device for municipal building

Abstract

The utility model discloses a sand screening device for municipal buildings, which is applied to the field of municipal buildings and is characterized in that a crank is rotated to drive a worm to rotate, the worm rotates to drive a worm gear to rotate, the worm gear rotates to drive a threaded cylinder to rotate, and the threaded cylinder rotates to enable a lifting rod to move up and down; the lifting rod moves up and down to drive one end of the screen to move up and down, so that the gradient of the screen is changed, the purpose of adjusting the gradient of the screen is achieved, the use cost is reduced, and practicability and applicability are improved. The reciprocating screw rod rotates to enable the sliding block to reciprocate along the inner wall of the reciprocating screw rod, the sliding block reciprocates to drive the sliding cylinder to reciprocate, the sliding cylinder reciprocates to drive the paving plate to reciprocate, and the paving plate reciprocates to uniformly spread the sand, so that the purpose of paving the sand can be achieved, the screening speed is ensured, and the screening efficiency is improved.

Description

Technical Field

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

[0002] At present, a Chinese utility model with the announcement number CN216174039U discloses a sand screening device for construction, which relates to the field of construction engineering technology. The sand screening device for construction includes a frame, a feed pipe is provided through the top of the frame, a flip wheel is provided inside the feed pipe, a transmission device, a limit rod, a No. 1 discharge port and a fixed rod are fixedly connected to the bottom of the inner wall of the frame from left to right in sequence, a sand screening device is hinged on the top of the fixed rod, the top of the fixed rod is fixed to one side of the feed plate, and a No. 2 discharge port is provided on the right side of the frame. The sand screening device for construction drives the sand screening device to work through the transmission device, and can automatically and quickly screen the sand, reducing the loss of labor time and improving the work efficiency. At the same time, through the setting of the No. 1 discharge port and the No. 2 discharge port, fine sand and coarse sand can be discharged and transported separately, which is convenient for subsequent use and storage.

[0003] The existing screening device cannot adjust the slope of the screen. Generally, the slope of the screen is fixed, which results in a fixed screening speed. If the construction period is tight and a faster screening speed is required, a screening device is generally added for screening, which increases the cost of screening and reduces practicality. In addition, for sand of different particle sizes, the screen requires different slopes. If it continues to be used, it will result in poor screening effect, reduced applicability, and no paving function. Generally, when screening, the sieve is poured onto the screen for screening. The sand accumulates on the screen, and the screen is unevenly distributed. During screening, the sand cannot pass through the screen in time, resulting in reduced screening efficiency and thus reduced screening accuracy, affecting the screening quality and making it inconvenient to use. In order to solve the above-mentioned problems, we propose a sand screening device for municipal construction. Utility Model Content

[0004] The utility model aims to provide a sand screening device for municipal construction, which has the advantages of being able to adjust the slope of the screen and having a paving function.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions: a sand screening device for municipal construction, comprising a base frame, a spring bolted to the top of the base frame, a support frame bolted to the top of the spring, a screen mesh hinged to the top of the support frame, a threaded barrel rotatably sleeved on the inner wall of the support frame, a lifting rod threadedly connected to the inner wall of the threaded barrel, a fixed shell bolted to the bottom of the support frame, a belt pulley fixedly sleeved on the surface of the threaded barrel, and the belt pulleys are connected by a transmission belt, and a screen mesh is hinged on the top of the support frame, a threaded barrel rotatably sleeved on the inner wall of the threaded barrel, a lifting rod threadedly connected to the inner wall of the threaded barrel, a fixed shell bolted to the bottom of the support frame, a belt pulley fixedly sleeved on the surface of the threaded barrel, and the belt pulleys are connected by a transmission belt, and a A worm wheel, a worm is meshed on the surface of the worm wheel, and the worm is rotatably connected to the inner wall of the fixed shell, a first motor is bolted to the surface of the screen, an output end of the first motor passes through the screen and is bolted to a reciprocating screw, and the other end of the reciprocating screw is rotatably connected to the inner wall of the screen, a slide cylinder is slidably connected to the surface of the reciprocating screw, a sliding block is rotatably connected to the inner wall of the slide cylinder, and the sliding block is slidably connected to the inner wall of the reciprocating screw, a spreading plate is bolted to the bottom of the slide cylinder, and the spreading plate is slidably connected to the inner wall of the screen, and a feeding mechanism is provided on the top of the screen.

[0006] By adopting the above technical scheme, the crank handle is turned, and the rotation of the crank handle drives the worm to rotate, the rotation of the worm drives the worm wheel to rotate, the rotation of the worm wheel drives the threaded barrel to rotate, the rotation of the threaded barrel causes the lifting rod to move up and down, and the up and down movement of the lifting rod drives one end of the screen to move up and down, thereby changing the slope of the screen, thereby achieving the purpose of adjusting the slope of the screen, reducing the cost of use, and improving practicality and applicability. The reciprocating screw is driven by the rotation of the first motor, and the reciprocating screw drives the sliding block to reciprocate along the inner wall of the reciprocating screw. The reciprocating movement of the sliding block drives the slide barrel to reciprocate, and the reciprocating movement of the slide barrel drives the spreading board to reciprocate. The reciprocating movement of the spreading board spreads the sand evenly, which can achieve the purpose of spreading the sand, ensure the screening speed, and improve the screening efficiency.

[0007] The utility model is further configured as follows: the feeding mechanism includes a feeding hopper, the feeding hopper is bolted to the top of the screen, a second motor is bolted to the surface of the feeding hopper, an output end of the second motor extends to the interior of the feeding hopper and is bolted to a rotating shaft, and the other end of the rotating shaft is rotatably connected to the inner wall of the feeding hopper, and a feeding plate is bolted to the surface of the rotating shaft.

[0008] By adopting the above technical solution, a feeding mechanism is provided, the rotation of the second motor drives the rotating shaft to rotate, and the rotation of the rotating shaft drives the feeding plate to rotate, so that the sieve is discharged evenly, thereby further improving the screening quality.

[0009] The utility model is further configured as follows: a sliding block is hinged on the top of the lifting rod, a sliding groove is slidably connected on the surface of the sliding block, and the sliding groove is arranged at the bottom of the screen.

[0010] By adopting the above technical solution, the slider and the slide groove are provided to prevent the lifting and deflection, which is convenient for use.

[0011] The utility model is further configured as follows: one end of the worm is bolted with a crank.

[0012] By adopting the above technical solution, the worm is easily rotated by arranging a crank.

[0013] The utility model is further configured as follows: a vibrator is bolted on the surface of the screen.

[0014] By adopting the above technical solution and setting a vibrator, the screening efficiency is improved.

[0015] The utility model is further configured as follows: the surface of the lifting rod is printed with scale lines.

[0016] By adopting the above technical solution, the slope of the screen can be easily adjusted by setting scale lines.

[0017] The utility model is further configured as follows: a backing plate is bolted to the bottom of the base frame.

[0018] By adopting the above technical solution and providing a pad, the stability of the device is improved.

[0019] In summary, the utility model has the following beneficial effects:

[0020] 1. The utility model rotates the crank, the crank drives the worm to rotate, the worm drives the worm wheel to rotate, the worm wheel drives the threaded barrel to rotate, the threaded barrel rotates to move the lifting rod up and down, the lifting rod moves up and down to drive one end of the screen to move up and down, so that the slope of the screen is changed, thereby achieving the purpose of adjusting the slope of the screen, reducing the use cost and improving practicality and applicability;

[0021] 2. The utility model drives the reciprocating screw to rotate by the rotation of the first motor, and the rotation of the reciprocating screw causes the sliding block to reciprocate along the inner wall of the reciprocating screw. The reciprocating movement of the sliding block drives the sliding cylinder to reciprocate, and the reciprocating movement of the sliding cylinder drives the paving board to reciprocate. The reciprocating movement of the paving board spreads the sand evenly, which can achieve the purpose of spreading the sand, ensure the screening speed, and improve the screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional diagram of the structure of the utility model;

[0023] Figure 2 It is a side sectional view of a local structure of the utility model;

[0024] Figure 3 It is a three-dimensional diagram of the local structure of the utility model;

[0025] Figure 4 It is a three-dimensional cross-sectional view of the local structure of the utility model;

[0026] Figure 5 It is a three-dimensional diagram of the local structure of the utility model;

[0027] Figure 6 It is a partial structural cross-sectional view of the utility model;

[0028] Figure 7 It is a side sectional view of a local structure of the utility model;

[0029] Figure 8 It is a local structural stereogram of the utility model.

[0030] Figure numerals: 1. base frame; 2. spring; 3. support frame; 4. screen; 5. threaded cylinder; 6. lifting rod; 7. fixed shell; 8. pulley; 9. worm gear; 10. worm; 11. first motor; 12. reciprocating screw; 13. slide cylinder; 14. sliding block; 15. spreading board; 16. feeding mechanism; 17. feeding hopper; 18. second motor; 19. rotating shaft; 20. feeding plate; 21. slider; 22. slide chute; 23. crank; 24. vibrator; 25. scale line; 26. pad. DETAILED DESCRIPTION

[0031] The utility model is further described in detail below in conjunction with the accompanying drawings. Example

[0032] refer to Figure 1 , Figure 2 , Figure 5 and Figure 6 , a sand screening device for municipal construction comprises a base frame 1, a spring 2 is bolted to the top of the base frame 1, a supporting frame 3 is bolted to the top of the spring 2, a screen 4 is hinged on the top of the supporting frame 3, a threaded cylinder 5 is rotatably sleeved on the inner wall of the supporting frame 3, a lifting rod 6 is threadedly connected to the inner wall of the threaded cylinder 5, a fixed shell 7 is bolted to the bottom of the supporting frame 3, a belt pulley 8 is fixedly sleeved on the surface of the threaded cylinder 5, and the belt pulleys 8 are connected by a transmission belt transmission, a worm gear 9 is fixedly sleeved on the surface of the threaded cylinder 5, a worm 10 is meshed on the surface of the worm gear 9, and the worm 10 is rotatably sleeved with the inner wall of the fixed shell 7, by turning the crank 23, the crank 23 rotates to drive the worm 10 to rotate, the worm 10 rotates to drive the worm wheel 9 to rotate, the worm wheel 9 rotates to drive the threaded cylinder 5 to rotate, the threaded cylinder 5 rotates to make the lifting rod 6 move up and down, and the lifting rod 6 moves up and down to drive one end of the screen 4 to move up and down, so that the slope of the screen 4 changes, thereby achieving the purpose of adjusting the slope of the screen 4, reducing the use cost and improving the practicality and applicability.

[0033] refer to Figure 6A slider 21 is hinged on the top of the lifting rod 6, and a slide groove 22 is slidably connected to the surface of the slider 21, and the slide groove 22 is opened at the bottom of the screen 4. By setting the slider 21 and the slide groove 22, the lifting deviation is prevented, which is convenient for use.

[0034] refer to Figure 1 and Figure 6 One end of the worm 10 is bolted with a crank 23, and the worm 10 is easily rotated by setting the crank 23.

[0035] refer to Figure 1 and Figure 5 The surface of the lifting rod 6 is printed with scale lines 25, and the scale lines 25 are set to facilitate the adjustment of the slope of the screen 4. Example

[0036] refer to Figure 1 , Figure 3 and Figure 4 The surface of the screen 4 is bolted with a first motor 11, the output end of the first motor 11 passes through the screen 4 and is bolted with a reciprocating screw rod 12, and the other end of the reciprocating screw rod 12 is rotatably connected to the inner wall of the screen 4, the surface of the reciprocating screw rod 12 is slidably sleeved with a slide cylinder 13, the inner wall of the slide cylinder 13 is rotatably connected with a sliding block 14, and the sliding block 14 is slidably connected to the inner wall of the reciprocating screw rod 12, the bottom of the slide cylinder 13 is bolted with a paving plate 15, and the paving plate 15 is slidably connected to the inner wall of the screen 4, A feeding mechanism 16 is provided on the top of the screen 4, which drives the reciprocating screw 12 to rotate through the rotation of the first motor 11. The rotation of the reciprocating screw 12 causes the sliding block 14 to reciprocate along the inner wall of the reciprocating screw 12. The reciprocating movement of the sliding block 14 drives the slide cylinder 13 to reciprocate. The reciprocating movement of the slide cylinder 13 drives the spreading plate 15 to reciprocate. The reciprocating movement of the spreading plate 15 spreads the sand evenly, which can achieve the purpose of spreading the sand, ensure the screening speed, and improve the screening efficiency.

[0037] refer to Figure 1 , Figure 7 and Figure 8 The feeding mechanism 16 includes a feeding hopper 17, which is bolted to the top of the screen 4. A second motor 18 is bolted to the surface of the feeding hopper 17. The output end of the second motor 18 extends to the inside of the feeding hopper 17 and is bolted to a rotating shaft 19. The other end of the rotating shaft 19 is rotatably connected to the inner wall of the feeding hopper 17. A feeding plate 20 is bolted to the surface of the rotating shaft 19. By setting the feeding mechanism 16, the rotation of the second motor 18 drives the rotating shaft 19 to rotate, and the rotation of the rotating shaft 19 drives the feeding plate 20 to rotate, so that the sieve is evenly discharged, which further improves the screening quality.

[0038] refer to Figure 1 A vibrator 24 is bolted to the surface of the screen 4. By providing the vibrator 24, the screening efficiency is improved.

[0039] refer to Figure 1 A pad 26 is bolted to the bottom of the base frame 1, and the stability of the device is improved by providing the pad 26.

[0040] A brief description of the usage process: turn the crank 23, the crank 23 drives the worm 10 to rotate, the worm 10 drives the worm wheel 9 to rotate, the worm wheel 9 drives the threaded barrel 5 to rotate, the threaded barrel 5 rotates to make the lifting rod 6 move up and down, the lifting rod 6 moves up and down to drive one end of the screen 4 to move up and down, so that the slope of the screen 4 changes, so as to achieve the purpose of adjusting the slope of the screen 4; the first motor 11 rotates to drive the reciprocating screw 12 to rotate, the reciprocating screw 12 rotates to make the sliding block 14 reciprocate along the inner wall of the reciprocating screw 12, the reciprocating movement of the sliding block 14 drives the slide cylinder 13 to reciprocate, the reciprocating movement of the slide cylinder 13 drives the paving board 15 to reciprocate, the reciprocating movement of the paving board 15 spreads the sand evenly, so as to achieve the purpose of spreading the sand.

[0041] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A sand screening device for municipal construction, comprising a base frame (1), characterized in that: The top of the base frame (1) is bolted with a spring (2), the top of the spring (2) is bolted with a support frame (3), the top of the support frame (3) is hinged with a screen (4), the inner wall of the support frame (3) is rotatably sleeved with a threaded cylinder (5), the inner wall of the threaded cylinder (5) is threadedly connected with a lifting rod (6), the bottom of the support frame (3) is bolted with a fixed shell (7), the surface of the threaded cylinder (5) is fixedly sleeved with a belt pulley (8), and the belt pulleys (8) are connected by a transmission belt, the surface of the threaded cylinder (5) is fixedly sleeved with a worm wheel (9), the surface of the worm wheel (9) is meshed with a worm (10), and the worm (10) is rotatably sleeved with the inner wall of the fixed shell (7).

2. A sand screening device for municipal construction according to claim 1, characterized in that: The surface of the screen (4) is bolted with a first motor (11), the output end of the first motor (11) passes through the screen (4) and is bolted with a reciprocating screw (12), and the other end of the reciprocating screw (12) is rotatably connected to the inner wall of the screen (4), the surface of the reciprocating screw (12) is slidably sleeved with a slide cylinder (13), the inner wall of the slide cylinder (13) is rotatably connected with a sliding block (14), and the sliding block (14) is slidably connected to the inner wall of the reciprocating screw (12), the bottom of the slide cylinder (13) is bolted with a paving plate (15), and the paving plate (15) is slidably connected to the inner wall of the screen (4), and a feeding mechanism (16) is provided on the top of the screen (4).

3. A sand screening device for municipal construction according to claim 2, characterized in that: The feeding mechanism (16) comprises a feeding hopper (17), the feeding hopper (17) being bolted to the top of the screen (4), a second motor (18) being bolted to the surface of the feeding hopper (17), an output end of the second motor (18) extending into the interior of the feeding hopper (17) and being bolted to a rotating shaft (19), and the other end of the rotating shaft (19) being rotatably connected to the inner wall of the feeding hopper (17), and a feeding plate (20) being bolted to the surface of the rotating shaft (19).

4. A sand screening device for municipal construction according to claim 1, characterized in that: A slider (21) is hingedly connected to the top of the lifting rod (6), a slide groove (22) is slidably connected to the surface of the slider (21), and the slide groove (22) is provided at the bottom of the screen (4).

5. A sand screening device for municipal construction according to claim 1, characterized in that: One end of the worm (10) is bolted to a crank (23).

6. A sand screening device for municipal construction according to claim 1, characterized in that: A vibrator (24) is bolted to the surface of the screen (4).

7. A sand screening device for municipal construction according to claim 1, characterized in that: The surface of the lifting rod (6) is printed with scale lines (25).

8. A sand screening device for municipal construction according to claim 1, characterized in that: A pad (26) is bolted to the bottom of the base frame (1).

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