Sand screening equipment for constructional engineering

Abstract

The utility model relates to the technical field of constructional engineering appliances, and discloses sand screening equipment for constructional engineering, which comprises a machine body, a coarse material port is arranged on the side surface of the machine body, a screen is fixedly mounted on the inner wall of the machine body, and a paving component is arranged at the top of the machine body. According to the sand screening equipment for constructional engineering, the paving assembly is arranged and matched with synchronous rotation of a rotating sleeve and a rotating rod, and at the moment, through guiding and limiting of a convex ball and a wave groove, the rotating sleeve can synchronously conduct small-amplitude reciprocating motion in the vertical direction when rotating; a connecting rod is matched to realize left-right reciprocating motion of an arc-shaped push plate on a paving disc, so that accumulated sand falling onto the paving disc can be intermittently pushed outwards, the sand can be dispersed on a screen along with the continuously rotating paving disc, the condition that the sand is accumulated during feeding is avoided, and the quality of the sand is improved. And normal feeding and sieving of the sand are influenced.

Description

Technical Field

[0001] This utility model relates to the field of construction engineering tools, specifically a sand screening device for construction engineering. Background Technology

[0002] Sand is used in construction projects. During production and transportation, sand may become contaminated with impurities or become damp. Therefore, sand screening equipment is needed to screen the sand.

[0003] According to a public notice of a sand screening device for construction engineering (Announcement No.: CN215656309U), in the above application, the sand particles placed in the screening box move within the screening box. Qualified sand particles fall into the collection box through the through hole at the bottom of the screening box, while the remaining impurities are collected in the screening box. Furthermore, because the screening box continuously swings back and forth before the motor stops, large particles of impurities continue to move and cannot accumulate together to block the through hole. This device has the advantage of not causing blockage.

[0004] However, in actual use, the sand screening equipment has limited internal coverage when sand is transported externally or fed manually. Furthermore, with the continuous feeding of sand, sand easily accumulates on the surface of the screen, thus affecting the overall operating efficiency of the sand screening equipment. In view of this, we propose a sand screening equipment for construction engineering. Utility Model Content

[0005] The purpose of this invention is to provide a sand screening device for construction engineering to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a sand screening device for construction engineering, comprising a machine body, a coarse material inlet on the side of the machine body, a screen fixedly installed on the inner wall of the machine body, and a spreading component on the top of the machine body;

[0007] The paving assembly includes a U-shaped frame, which is fixedly installed on the top outer wall of the machine body. A drive motor is fixedly installed on the upper surface of the U-shaped frame, and a rotating rod is fixedly installed at the output end of the drive motor. A paving disc is fixedly installed at the bottom end of the rotating rod. A fixing sleeve is fixedly installed on the top lower surface of the U-shaped frame. A wave groove is formed on the arc-shaped outer wall of the fixing sleeve. A rotating sleeve is fitted on the arc-shaped outer wall of the rotating rod. A convex ball is fixedly installed on the arc-shaped inner wall of the rotating sleeve. A connecting rod is hinged to the arc-shaped outer wall of the rotating sleeve. An arc-shaped push plate is hinged to the bottom end of the connecting rod. A scraper is fixedly installed on the lower surface of the arc-shaped push plate.

[0008] Preferably, the paving disc has a plurality of mesh holes evenly distributed inside, and the center of the paving disc is hollow, and the scraper is disposed in the hollow cavity of the paving disc.

[0009] Preferably, a strip-shaped limiting block is provided on the arc-shaped outer wall of the rotating rod, and a limiting groove adapted to the strip-shaped limiting block is provided on the arc-shaped inner wall at the bottom end of the rotating sleeve, so that the rotating rod can drive the rotating sleeve to rotate synchronously during the rotation process, thereby enabling the rotating sleeve to rotate relative to the fixed sleeve.

[0010] Preferably, the top of the scraper is provided with a rubber strip, and the top of the rubber strip is provided with multiple sets of arc-shaped grooves. The number of connecting rods, arc-shaped push plates, and scrapers is four sets, and the four sets of connecting rods, arc-shaped push plates, and scrapers are arranged in a circumferential array on the arc-shaped outer wall of the rotating sleeve. The length of the two sets of scrapers on the left and right sides of the rotating sleeve is greater than the length of the two sets of scrapers on the front and rear sides of the rotating sleeve, so as to avoid motion interference between the four sets of arc-shaped push plates and scrapers.

[0011] Preferably, a dispersing component is provided on the bottom inner wall of the arc-shaped push plate. The dispersing component includes a contact wheel, which is rotatably mounted on the inner wall of the connection between the arc-shaped push plate and the scraper. A transmission wheel one is coaxially fixedly mounted on the contact wheel. The transmission wheel one is connected to a transmission wheel two via a transmission belt. A round rod is fixedly mounted through and at the axis of the transmission wheel two. An arc-shaped plate is fixedly mounted on the arc-shaped outer wall at the bottom end of the round rod. A return wheel is rotatably mounted on the arc-shaped outer wall of the round rod. A coil spring is fixedly connected between the arc-shaped inner surface of the return wheel and the arc-shaped outer wall of the round rod.

[0012] Preferably, there are two sets of the transmission wheel one, transmission belt, transmission wheel two, round rod and return wheel, and the two sets of transmission wheel one, transmission belt, transmission wheel two, round rod and return wheel are symmetrically arranged with the vertical central axis of the arc-shaped push plate as the axis of symmetry.

[0013] Preferably, another set of arc-shaped plates is provided on the arc-shaped outer wall of the pendulum wheel.

[0014] Compared with the prior art, this utility model provides a sand screening device for construction engineering, which has the following beneficial effects:

[0015] 1. The sand screening equipment used in this construction project is equipped with a paving component. With the synchronous rotation of the rotating sleeve and the rotating rod, the rotating sleeve can perform small reciprocating movements in the vertical direction synchronously with the guidance and restriction of the convex ball and the wave groove. This, in conjunction with the connecting rod, enables the arc-shaped push plate to move back and forth on the paving plate. As a result, the sand that falls onto the paving plate can be pushed outward intermittently, so that the sand can be dispersed on the screen with the continuously rotating paving plate. This prevents the sand from piling up during feeding, which would affect the normal feeding and screening of the sand.

[0016] 2. The sand screening equipment used in this construction project is equipped with a dispersing component. Through the continuous rotation of the contact wheel, in conjunction with the transmission wheel one and the transmission belt, the transmission wheel two drives the round rod to rotate continuously. At this time, under the elastic force of the coil spring, the resistance generated by the contact with the sand causes the round rod to drive the arc plate and the arc plate of the swing wheel to disperse the sand on the spreading plate, thereby enabling the clumps of sand to be better screened by the screen and improving the overall sand screening efficiency of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0018] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the paving component structure of this utility model;

[0020] Figure 4 This is a cross-sectional structural diagram of the paving disc of this utility model;

[0021] Figure 5 This is an exploded view of the paving component of this utility model;

[0022] Figure 6 This is a schematic diagram of the disintegration component structure of this utility model;

[0023] Figure 7 This is a cross-sectional view of the pendulum wheel of this utility model.

[0024] In the diagram: 1. Machine body; 2. Coarse material inlet; 3. Screen; 4. Paving assembly; 41. U-shaped frame; 42. Drive motor; 43. Rotating rod; 44. Paving disc; 45. Fixed sleeve; 46. Corrugated groove; 47. Rotating sleeve; 48. Convex ball; 49. Connecting rod; 410. Arc-shaped push plate; 411. Scraper; 5. Dispersing assembly; 51. Contact wheel; 52. Transmission wheel one; 53. Transmission belt; 54. Transmission wheel two; 55. Round rod; 56. Arc-shaped plate; 57. Returning swing wheel; 58. Coil spring. Detailed Implementation

[0025] like Figures 1-7 As shown, this utility model provides a technical solution: a sand screening device for construction engineering, including a machine body 1, a coarse material inlet 2 on the side of the machine body 1, a screen 3 fixedly installed on the inner wall of the machine body 1, and a paving assembly 4 on the top of the machine body 1. The paving assembly 4 includes a U-shaped frame 41, a drive motor 42, a rotating rod 43, a paving disc 44, a fixing sleeve 45, a corrugated groove 46, a rotating sleeve 47, a convex ball 48, a connecting rod 49, an arc-shaped push plate 410, and a scraper 411.

[0026] In one embodiment of this utility model, a U-shaped frame 41 is fixedly installed on the top outer wall of the machine body 1. A drive motor 42 is fixedly installed on the upper surface of the U-shaped frame 41. A rotating rod 43 is fixedly installed at the output end of the drive motor 42. A spreading disc 44 is fixedly installed at the bottom end of the rotating rod 43. A fixing sleeve 45 is fixedly installed on the top lower surface of the U-shaped frame 41. A wave groove 46 is provided on the arc-shaped outer wall of the fixing sleeve 45. A rotating sleeve 47 is sleeved on the arc-shaped outer wall of the rotating rod 43. A convex ball 48 is fixedly installed on the arc-shaped inner wall of the rotating sleeve 47. A connecting rod 49 is hinged to the arc-shaped outer wall of the rotating sleeve 47. An arc-shaped push plate 410 is hinged to the bottom end of the connecting rod 49. A scraper 411 is fixedly installed on the lower surface of the arc-shaped push plate 410.

[0027] Furthermore, a fine material inlet is provided at the bottom of the machine body 1. During operation, sand is fed into the machine body 1 from above. Through the sieve 3, coarse material slides to the right along the surface of the sieve 3 and is discharged outwards through the coarse material inlet 2. Fine material falls downwards after passing through the sieve 3 and is discharged outwards through the fine material inlet. Simultaneously, the rotating rod 43 is positioned at the center of the fixed sleeve 45, and there is no movement interference between the rotating rod 43 and the fixed sleeve 45. Specifically, the paving disc 44 has several evenly spaced mesh openings inside, and its center is hollow. A scraper 411 is positioned within the hollow inner cavity of the paving disc 44. Additionally, a strip-shaped limiting block is provided on the arc-shaped outer wall of the rotating rod 43, and a corresponding strip-shaped limiting block is provided on the arc-shaped inner wall at the bottom end of the rotating sleeve 47. The limiting groove allows the rotating rod 43 to drive the rotating sleeve 47 to rotate synchronously during rotation, so that the rotating sleeve 47 can rotate relative to the fixed sleeve 45. Specifically, the convex ball 48 is set inside the corrugated groove 46, so that the rotating sleeve 47 can perform small reciprocating motion in the vertical direction synchronously during rotation through the guidance and restriction of the convex ball 48 and the corrugated groove 46. This, in conjunction with the connecting rod 49, realizes the left and right reciprocating motion of the arc-shaped push plate 410 on the paving disc 44, so that the sand accumulated on the paving disc 44 can be pushed out intermittently, so that the sand can be dispersed on the screen 3 with the continuously rotating paving disc 44, avoiding the accumulation of sand during feeding, which would affect the normal feeding and screening of sand.

[0028] In addition, a rubber strip is provided on the top of the scraper 411, and multiple sets of arc-shaped grooves are provided on the top of the rubber strip. There are four sets of connecting rods 49, arc-shaped push plates 410, and scrapers 411. The four sets of connecting rods 49, arc-shaped push plates 410, and scrapers 411 are arranged in a circumferential array on the arc-shaped outer wall of the rotating sleeve 47. The length of the two sets of scrapers 411 on the left and right sides of the rotating sleeve 47 is greater than the length of the two sets of scrapers 411 on the front and rear sides of the rotating sleeve 47, so as to avoid the movement interference between the four sets of arc-shaped push plates 410 and scrapers 411. Through the reciprocating movement of the arc-shaped push plates 410, the scrapers 411 can scrape and clean the paving disc 44 and its internal cavity, and further perform preliminary dispersion treatment on the sand to be screened, so that it can be better screened.

[0029] Please refer to the attached instruction manual. Figures 5-7A dispersing component 5 is provided on the bottom inner wall of the arc-shaped push plate 410. The dispersing component 5 includes a contact wheel 51, which is rotatably mounted on the inner wall of the connection between the arc-shaped push plate 410 and the scraper 411. A transmission wheel 52 is coaxially fixedly mounted on the contact wheel 51. The transmission wheel 52 is connected to the transmission wheel 54 via a transmission belt 53. A round rod 55 is fixedly mounted through and at the axis of the transmission wheel 54. An arc-shaped plate 56 is fixedly mounted on the arc-shaped outer wall at the bottom end of the round rod 55. A return wheel 57 is rotatably mounted on the arc-shaped outer wall of the round rod 55. A coil spring 58 is fixedly connected between the arc-shaped inner surface of the return wheel 57 and the arc-shaped outer wall of the round rod 55.

[0030] In this embodiment of the invention, the arc-shaped outer surface of the contact wheel 51 contacts the inner surface of the paving disc 44, so that the contact wheel 51 will continuously rotate when the arc-shaped push plate 410 slides along the surface of the paving disc 44. Furthermore, two sets of transmission wheels 52, transmission belts 53, transmission wheels 54, round rods 55, and return wheels 57 are provided, and the two sets of transmission wheels 52, transmission belts 53, transmission wheels 54, round rods 55, and return wheels 57 are symmetrically arranged about the vertical central axis of the arc-shaped push plate 410. Further, two sets of arc-shaped plates 56 are provided, and each set of arc-shaped plates 56 includes three arc plates arranged in a circumferential array on the arc-shaped outer wall of the round rod 55. A set of arc-shaped plates 56 are mirror images of the upper and lower outer surfaces of the swing wheel 57, and another set of arc-shaped plates 56 is provided on the arc-shaped outer wall of the swing wheel 57. When the arc-shaped push plate 410 slides along the surface of the paving disc 44, the continuous rotation of the contact wheel 51, in conjunction with the transmission of the first transmission wheel 52 and the transmission belt 53, causes the second transmission wheel 54 to drive the round rod 55 to rotate continuously. At this time, under the elastic force of the coil spring 58, due to the resistance generated by contact with the sand, the round rod 55 drives the arc-shaped plates 56 and the arc-shaped plates 56 of the swing wheel 57 to break up the sand on the paving disc 44, so that the clumps of sand can be better screened by the screen 3, thereby improving the overall sand screening efficiency of the device.

[0031] In this invention, sand is fed into the machine body 1 from above. Through the sieve 3, coarse material slides down the surface of the sieve 3 to the right and is discharged outwards through the coarse material outlet 2. Fine material falls downwards after passing through the sieve 3 and is discharged outwards through the fine material outlet. Simultaneously, the paving assembly 4 is installed, and the drive motor 42 is started, working in conjunction with the rotating rod 43 to drive the paving disc 44 to rotate continuously. At this time, the strip-shaped limiting block and the limiting groove work together to synchronize the rotating sleeve 47 with the rotating rod 43. The rotating sleeve 47 rotates, guided and restricted by the convex ball 48 and the wave groove 46, so that it can perform small reciprocating motion in the vertical direction in sync with the rotation of the rotating sleeve 47. This, in conjunction with the connecting rod 49, enables the arc-shaped push plate 410 to move back and forth on the paving disc 44. This allows the sand that falls onto the paving disc 44 to be pushed outward intermittently, so that the sand can be dispersed on the screen 3 with the continuously rotating paving disc 44, avoiding the accumulation of sand during feeding, which would affect the normal feeding and screening of sand.

[0032] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A sand screening device for construction engineering, comprising a machine body (1), a coarse material opening (2) is formed on the side of the machine body (1), and a screen mesh (3) is fixedly installed on the inner wall of the machine body (1), characterized in that: The top of the machine body (1) is provided with a paving assembly (4); Wherein, the paving assembly (4) comprises a U-shaped frame (41) fixedly installed on the top outer wall of the machine body (1), the upper surface of the U-shaped frame (41) is fixedly installed with a driving motor (42), the output end of the driving motor (42) is fixedly installed with a rotating rod (43), the bottom end of the rotating rod (43) is fixedly installed with a paving disc (44), the top lower surface of the U-shaped frame (41) is fixedly installed with a fixed sleeve (45), the arc outer wall of the fixed sleeve (45) is provided with a wave groove (46), the arc outer wall of the rotating rod (43) is sleeved with a rotating sleeve (47), the arc inner wall of the rotating sleeve (47) is fixedly installed with a convex ball (48), the arc outer wall of the rotating sleeve (47) is hingedly connected with a connecting rod (49), the bottom end of the connecting rod (49) is hingedly connected with an arc-shaped push plate (410), the lower surface of the arc-shaped push plate (410) is fixedly installed with a scraper (411).

2. A sand screening apparatus for use in construction engineering according to claim 1, characterized in that: The inside of the paving disc (44) is uniformly provided with a plurality of mesh holes, the center of the paving disc (44) is provided in a hollow manner, and the scraper (411) is arranged in the hollow inner cavity of the paving disc (44).

3. A sand screening device for construction work as claimed in claim 1, wherein: The arc outer wall of the rotating rod (43) is provided with a strip-shaped limiting block, and the bottom end arc inner wall of the rotating sleeve (47) is provided with a limiting sliding groove matched with the strip-shaped limiting block.

4. A sand screening device for construction work as claimed in claim 1, wherein: The top of the scraper (411) is provided with a rubber strip, the top of the rubber strip is provided with a plurality of arc-shaped grooves, the number of the connecting rod (49), the arc-shaped push plate (410) and the scraper (411) is four, the four connecting rods (49), the arc-shaped push plates (410) and the scrapers (411) are arranged in a circumferential array on the arc outer wall of the rotating sleeve (47), and the length of the two groups of scrapers (411) on the left and right sides of the rotating sleeve (47) is greater than the length of the two groups of scrapers (411) on the front and rear sides of the rotating sleeve (47).

5. A sand screening device for construction work as claimed in claim 1, wherein: The bottom inner wall of the arc-shaped push plate (410) is provided with a scattering assembly (5), the scattering assembly (5) comprises a contact wheel (51) rotatably installed on the inner wall of the connecting portion between the arc-shaped push plate (410) and the scraper (411), the contact wheel (51) is coaxially fixedly installed with a transmission wheel one (52), the transmission wheel one (52) is drivingly connected with a transmission wheel two (54) through a transmission belt (53), the shaft center of the transmission wheel two (54) penetrates and is fixedly installed with a circular rod (55), the bottom end arc outer wall of the circular rod (55) is fixedly installed with an arc-shaped plate (56), the arc outer wall of the circular rod (55) is rotatably installed with a swing wheel (57), the arc inner surface of the swing wheel (57) and the arc outer wall of the circular rod (55) are fixedly connected with a coil spring (58).

6. A sand screening apparatus for use in construction engineering according to claim 5, characterised in that: The transmission wheel one (52), the transmission belt (53), the transmission wheel two (54), the round rod (55) and the back-and-forth wheel (57) are provided with two groups, and the two groups of transmission wheel one (52), transmission belt (53), transmission wheel two (54), round rod (55) and back-and-forth wheel (57) are symmetrically arranged with the vertical central axis of the arc-shaped push plate (410) as the axis of symmetry.

7. A sand screening apparatus for use in construction work as claimed in claim 5, wherein: Another group of arc-shaped plates (56) are arranged on the arc-shaped outer wall of the back-and-forth wheel (57).

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