Sand screening equipment with efficient screening function for constructional engineering

Abstract

The utility model belongs to the technical field of constructional engineering, and particularly relates to sand screening equipment for constructional engineering, which is efficient in screening and solves the problems of inconvenience in cleaning and incapability of adjusting blanking speed in the prior art, the sand screening equipment comprises a box body, and the bottom of the box body is fixedly connected with four symmetrically arranged supporting legs through screws. A mounting plate is fixedly connected to one side of the box through screws, a motor is mounted at the top of the mounting plate, sand is poured into a hopper through the arrangement of the motor, a push rod and other structures, the sand falls into a filter frame, the output end of the motor drives a driven wheel to rotate through a synchronous belt, a cam collides with the filter frame, and the filter frame is driven to rotate. And the bottom of the protruding block drives the telescopic rod and the push rod to push large particles in the filtering frame out to the first discharging opening to fall off, dismounting and cleaning are not needed, and the working efficiency is improved.

Description

Technical Field

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

[0002] At present, the design of sand screening equipment for construction projects mainly considers the screening and purification of sand to ensure the quality and safety of construction sand. This equipment usually consists of a set of screening devices that can remove impurities and unqualified particles in the sand.

[0003] The authorization announcement number in the prior art is: CN213051488U, and the name is a sand screening equipment for construction engineering, including vertical poles, filter frames, cross bars, movable plates and hinged rods and other components. There are four vertical poles, and a filter frame is arranged between the four vertical poles. The upper ends of the four vertical poles slide through the four corners of the filter frame respectively, and the two vertical poles located in the front and the two vertical poles located in the rear are fixedly connected by cross bars. The two cross bars are located below the filter frame, and the outer surfaces of the two cross bars are slidably sleeved with movable plates. The front and back sides of the filter frame are hinged with two hinged rods. This patent achieves the effect that when sand falls on the filter frame, it will not pile up, by setting a transmission plate, a push rod and a support rod, which solves the problem that the current sand screening equipment pours sand in piles onto the screening equipment, causing the screening device to be unable to screen evenly, resulting in low screening efficiency.

[0004] However, although the patent pours the sand evenly onto the screening device, during use, the screening speed is much slower than the speed of pouring the sand, and the sand screening speed cannot be adjusted, which easily causes the sand to overflow, resulting in a poor screening effect. In addition, large particles of debris will still remain on the screening device during use, making cleaning inconvenient. Utility Model Content

[0005] The utility model aims to provide a sand screening device for construction engineering with high screening efficiency, which solves the problems of inconvenient cleaning and inability to adjust the feeding speed.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sand screening device for construction engineering with high screening efficiency, comprising a box body, the bottom of the box body is fixedly connected with four symmetrically arranged supporting feet by screws, one side of the box body is fixedly connected with a mounting plate by screws, a motor is installed on the top of the mounting plate, the output end of the motor is fixedly connected with a coaxially arranged driving wheel by a coupling, the box body is a cavity structure, a rotating shaft is rotatably installed on the top wall of the box body, a driven wheel is fixedly sleeved on the rotating shaft, and a synchronous belt is sleeved on the driving wheel and the driven wheel;

[0007] A cam is welded to the bottom end of the rotating shaft, a telescopic rod is slidably mounted on the side wall of the box, a push rod is welded to one end of the telescopic rod, two symmetrically arranged brackets are fixedly connected to the inside of the box by screws, a filter frame is slidably mounted on the top of the two brackets, one side of the filter frame is inclined, and a hopper is welded to the top of the box.

[0008] Preferably, the box body is internally slidably equipped with a baffle, the interior of the baffle is provided with a plurality of spherical grooves equidistantly distributed in an array, the box body is internally slidably equipped with a limit rod, the top end of the limit rod is spherical, and the top end of the limit rod and the spherical groove have the same shape and size.

[0009] Preferably, a limiting groove is provided inside the box body, the limiting rod is slidably connected inside the limiting groove, and a second spring is commonly connected between the bottom of the limiting rod and the bottom wall of the limiting groove to facilitate resetting of the limiting rod.

[0010] Preferably, a second discharge port is provided at the bottom of the box body, and a first discharge port is provided at one side of the box body, so as to distinguish the screened sand from the large pieces of residue.

[0011] Preferably, both brackets are provided with sliding grooves, the filter frames are slidably connected inside the two sliding grooves, a first spring is connected between one side of the filter frame and the side wall of the box body, and a filter screen is provided at the bottom of the filter frame to facilitate the filter frame to move back and forth.

[0012] Preferably, a protrusion is welded at the bottom of the cam, and the bottom end of the protrusion is rotatably mounted inside the telescopic rod. A straight groove is opened on one side of the filter frame, and part of the push rod passes through the inside of the straight groove to facilitate the push rod to push out large particles.

[0013] Preferably, a revolving door is rotatably mounted on one side of the box, and an inclined plate is welded on the side wall of the box to facilitate maintenance of the interior of the box.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model pours sand into the hopper through the arrangement of structures such as a motor and a push rod, so that the sand falls into the filter frame. The output end of the motor drives the driven wheel to rotate through a synchronous belt, and the cam hits the filter frame accordingly, and then is reset by the first spring, so that the sand is screened repeatedly. The bottom of the convex block drives the telescopic rod and the push rod to push the large particles inside the filter frame to the first discharge port to drop the material, so that there is no need to disassemble and clean, thereby improving work efficiency.

[0016] 2. The utility model sets up structures such as baffles and limit rods. Since sand is poured directly into the interior of the filter frame at a high speed and the screening speed cannot keep up, a baffle is set inside the box. By adjusting the position of the baffle, the speed of sand feeding is controlled, so that the filter frame will not overflow, and it is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a front cross-sectional view of the box body of the utility model;

[0019] Figure 3 It is a side sectional view of the box body of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the filter frame of the utility model.

[0021] In the figure: 1. box body; 2. hopper; 3. first discharge port; 4. revolving door; 5. second discharge port; 6. mounting plate; 7. motor; 8. supporting foot; 9. driving wheel; 10. synchronous belt; 11. driven wheel; 12. rotating shaft; 13. cam; 14. telescopic rod; 15. bracket; 16. push rod; 17. first spring; 18. filter frame; 19. limit rod; 20. second spring; 21. spherical groove; 22. inclined plate; 23. filter screen; 24. baffle. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4, a sand screening equipment for construction engineering with high screening efficiency, including a box body 1, the bottom of the box body 1 is fixedly connected with four symmetrically arranged supporting feet 8 by screws, one side of the box body 1 is fixedly connected with a mounting plate 6 by screws, a motor 7 is installed on the top of the mounting plate 6, the output end of the motor 7 is fixedly connected with a coaxially arranged driving wheel 9 by a coupling, the box body 1 is a cavity structure, a rotating shaft 12 is rotatably installed on the top wall of the box body 1, a driven wheel 11 is fixedly sleeved on the rotating shaft 12, a synchronous belt 10 is jointly sleeved on the driving wheel 9 and the driven wheel 11, a cam 13 is welded on the bottom end of the rotating shaft 12, a telescopic rod 14 is slidably assembled on the side wall of the box body 1, a push rod 16 is welded at one end of the telescopic rod 14, and the interior of the box body 1 is connected by a screw. Two symmetrically arranged brackets 15 are fixedly connected by screws, and a filter frame 18 is slidably assembled on the top of the two brackets 15. One side of the filter frame 18 is inclined, and a hopper 2 is welded on the top of the box body 1. Sand is poured into the hopper 2 through the arrangement of structures such as the motor 7 and the push rod 16, so that the sand falls into the filter frame 18. The output end of the motor 7 drives the driven wheel 11 to rotate through the synchronous belt 10, and the cam 13 hits the filter frame 18 accordingly, and then is reset by the first spring 17, so that the sand is repeatedly screened, and the bottom of the protrusion drives the telescopic rod 14 and the push rod 16 to push the large particles inside the filter frame 18 to the first discharge port 3 to drop the material, so that there is no need to disassemble and clean, thereby improving work efficiency.

[0024] See also Figure 3 The interior of the box body 1 is slidably equipped with a baffle 24, and a plurality of spherical grooves 21 equidistantly distributed in an array are opened inside the baffle 24. The interior of the box body 1 is slidably equipped with a limit rod 19, and the top of the limit rod 19 is spherical, and the top of the limit rod 19 and the spherical groove 21 have the same shape and size. Through the arrangement of structures such as the baffle 24 and the limit rod 19, since sand is directly poured into the interior of the filter frame 18 at a fast speed, the screening speed cannot keep up, and therefore a baffle 24 is arranged inside the box body 1. By adjusting the position of the baffle 24, the speed of sand feeding is controlled, so that the filter frame 18 will not overflow, and it is more convenient to use.

[0025] See also Figure 1-4A limiting groove is provided inside the box body 1, and a limiting rod 19 is slidably connected inside the limiting groove. A second spring 20 is commonly connected between the bottom of the limiting rod 19 and the bottom wall of the limiting groove. A second discharge port 5 is provided at the bottom of the box body 1, and a first discharge port 3 is provided on one side of the box body 1. Slide grooves are provided inside the two brackets 15, and a filter frame 18 is commonly slidably connected inside the two slide grooves. A first spring 17 is commonly connected between one side of the filter frame 18 and the side wall of the box body 1. A filter screen 23 is provided at the bottom of the filter frame 18. A protrusion is welded at the bottom of the cam 13, and the bottom end of the protrusion is rotatably installed inside the telescopic rod 14. A straight groove is provided on one side of the filter frame 18, and a portion of the push rod 16 passes through the inside of the straight groove. A revolving door 4 is rotatably installed on one side of the box body 1, and an inclined plate 22 is welded on the side wall of the box body 1.

[0026] The specific implementation process of the utility model is as follows: first, pour sand from the hopper 2, then turn on the power of the motor 7, the output end of the motor 7 drives the driving wheel 9 to rotate through the coupling, the driving wheel 9 drives the driven wheel 11 to rotate through the synchronous belt 10, so that the rotating shaft 12 also drives the cam 13 to rotate, and when the cam 13 rotates, it will push the filter frame 18 to move to one side. When the cam 13 rotates to the other side, due to the action of the first spring 17, the filter frame 18 is reset again, so that the reciprocating vibration is formed to screen the sieve, and the screened During the filtering process, some large particles will be left inside the filter frame 18, so a convex block is provided at the bottom of the cam 13. Since one end of the telescopic rod 14 is slidably connected to the inside of the box body 1, the telescopic rod 14 will drive the push rod 16 to move back and forth, so that the push rod 16 pushes the large particles of the filter frame 18 out of the inclined side of the filter screen 23. When there are too many particles, they slide onto the inclined plate 22 and then fall from the first discharge port 3. The screened sand will fall from the second discharge port 5 at the bottom, and no manual cleaning is required, thereby improving work efficiency.

[0027] Furthermore, when sand is put into the hopper 2, since the screening speed is slow and the feeding speed is fast, the sand is easy to overflow the filter frame 18, resulting in poor filtering effect. Therefore, a baffle 24 is arranged inside the box body 1. By pushing the baffle 24, the size of the feed opening at the hopper 2 is vacated. Since the top of the limiting rod 19 is spherical, the baffle 24 can be limited to a certain extent, so that the baffle 24 can be fixed, thereby adjusting the feeding speed, so that sand falls into the inside of the filter frame 18 and does not overflow, and the practical effect is better. If there is a problem inside the box body 1, it can be repaired by opening the revolving door 4.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sand screening device for construction engineering with high screening efficiency, comprising a box (1), characterized in that: The bottom of the box (1) is fixedly connected to four symmetrically arranged supporting feet (8) by screws, one side of the box (1) is fixedly connected to a mounting plate (6) by screws, a motor (7) is installed on the top of the mounting plate (6), the output end of the motor (7) is fixedly connected to a coaxially arranged driving wheel (9) by a coupling, the box (1) is a cavity structure, a rotating shaft (12) is rotatably mounted on the top wall of the box (1), a driven wheel (11) is fixedly sleeved on the rotating shaft (12), and a synchronous belt (10) is sleeved on both the driving wheel (9) and the driven wheel (11); A cam (13) is welded to the bottom end of the rotating shaft (12); a telescopic rod (14) is slidably mounted on the side wall of the box body (1); a push rod (16) is welded to one end of the telescopic rod (14); two symmetrically arranged brackets (15) are fixedly connected to the inside of the box body (1) by screws; a filter frame (18) is slidably mounted on the top of the two brackets (15); one side of the filter frame (18) is inclined; and a hopper (2) is welded to the top of the box body (1).

2. The sand screening equipment for construction engineering with high screening efficiency according to claim 1 is characterized by: The box body (1) is internally slidably equipped with a baffle (24), and a plurality of spherical grooves (21) are arranged in an array and are evenly spaced in the interior of the baffle (24). The box body (1) is internally slidably equipped with a limit rod (19), and the top end of the limit rod (19) is spherical, and the top end of the limit rod (19) and the spherical groove (21) have the same shape and size.

3. The sand screening equipment for construction engineering with high screening efficiency according to claim 2 is characterized by: A limiting groove is provided inside the box body (1), the limiting rod (19) is slidably connected inside the limiting groove, and a second spring (20) is commonly connected between the bottom of the limiting rod (19) and the bottom wall of the limiting groove.

4. The sand screening equipment for construction engineering with high screening efficiency according to claim 1 is characterized by: The bottom of the box body (1) is provided with a second discharge port (5), and one side of the box body (1) is provided with a first discharge port (3).

5. The sand screening equipment for construction engineering with high screening efficiency according to claim 1 is characterized by: The two brackets (15) are each provided with a slide groove, and the filter frame (18) is slidably connected inside the two slide grooves. A first spring (17) is connected between one side of the filter frame (18) and the side wall of the box body (1), and a filter screen (23) is provided at the bottom of the filter frame (18).

6. The sand screening equipment for construction engineering with high screening efficiency according to claim 1 is characterized by: A protrusion is welded at the bottom of the cam (13), and the bottom end of the protrusion is rotatably mounted inside the telescopic rod (14). A straight groove is opened on one side of the filter frame (18), and a portion of the push rod (16) passes through the inside of the straight groove.

7. The sand screening equipment for construction engineering with high screening efficiency according to claim 1 is characterized by: A revolving door (4) is rotatably mounted on one side of the box body (1), and an inclined plate (22) is welded on the side wall of the box body (1).

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