Double-trolley stacked type sand screening device

Abstract

The utility model discloses a double-vehicle stacking type sand screening device which comprises a sand screening vehicle and a sand gathering vehicle, and the sand screening vehicle (1) comprises a swing motor (11), a waste sand hopper (12), a guide groove (13), a first handle (14), a first wheel (15) and a screen (16). The two parallel guide grooves and the two parallel waste sand hoppers are fixedly connected together, and the upper surfaces of the two parallel guide grooves and the two parallel waste sand hoppers are located on the same horizontal plane and are fixedly provided with a sieve; the number of the swing motors is two, the two swing motors are installed in the middles of upper openings of the two waste sand hoppers respectively, and a shifting rod (111) capable of circularly swinging left and right on the upper surface of the sieve is installed on a rotating shaft (112) on the upper portion of each swing motor in the horizontal direction. The sand screening vehicle is also provided with two wheels I and two handles I; and the sand screening vehicle is overlapped right above the sand gathering vehicle (2) through a connecting mechanism (3). According to the utility model, a secondary sand loading procedure is omitted, the labor intensity of workers is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of construction machinery and equipment technology, and in particular to a double-vehicle superimposed sand screening device for construction engineering. Background Technology

[0002] Sand is a common building material in construction projects, and its quality directly affects the overall quality of the building. Before use, sand needs to be sieved to remove impurities. Currently, impurities in sand are generally removed manually. Manual sieving often involves workers shoveling sand onto a screen. Ordinary sand sieves have a simple structure, requiring temporary setup and placement, which is time-consuming and labor-intensive. The sieved sand is usually left on the ground without temporary storage, making it prone to contamination with gravel and other impurities, affecting its quality. Furthermore, it needs to be loaded and transported again using wheelbarrows, significantly impacting construction efficiency and progress.

[0003] Chinese patent document CN114852718B (patent number CN202210222154.X, publication date August 5, 2022) discloses an outdoor construction loose sand rapid filling device that can automatically screen, move, and automatically clean. Specifically, the device includes: a base plate and a conveying pipe, with the conveying pipe mounted on the base plate; a rotating screw rod inside the conveying pipe; a filling box on the conveying pipe; a power mechanism at the bottom of the conveying pipe connected to the screw rod; and a sand screening mechanism on the conveying pipe. These types of sand screening devices typically have the following three drawbacks: 1. They have many mechanized and electrified parts, making processing and manufacturing complicated, the equipment is heavy, transportation and movement are inconvenient, and construction and operation are troublesome; 2. After screening the sand, the clean sand needs to be loaded and transported again by handcart, increasing the cost of secondary manual transportation; 3. After screening the sand, the waste sand and other debris need to be collected from the ground and loaded and transported again by handcart to the designated location, again increasing the cost of secondary manual transportation, consuming a lot of human resources, and delaying a lot of construction time. Utility Model Content

[0004] The purpose of this invention is to address the current needs and shortcomings of sand screening devices on construction sites by providing a sand screening device for construction. This invention can remove various impurities from sand, and the use of a temporary storage device can prevent the reintroduction of impurities, facilitate loading and transportation, reduce the labor intensity of workers, and improve construction efficiency and progress.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a double-car superimposed sand screening device, comprising a sand screening car and a sand collection car. The sand screening car includes a swing motor, a waste sand hopper, a guide trough, a handle, a wheel, and a sieve. There are two guide troughs and two waste sand hoppers. The two parallel guide troughs and the two parallel waste sand hoppers are fixedly connected together, and their upper surfaces are on the same horizontal plane. A sieve is fixed at the upper opening of the inner cavity formed by the two guide troughs and the two waste sand hoppers. There are two swing motors, which are respectively installed in the middle of the upper opening of the two waste sand hoppers. A lever that can swing left and right on the upper surface of the sieve is installed on the upper shaft of the swing motor along the horizontal direction. A wheel is installed on each side of the middle of the lower bottom surface of the two waste sand hoppers. A handle is fixed on the upper inner side of the end plate of each waste sand hopper along the horizontal direction. The sand screening car is superimposed on the sand collection car directly above it through a connecting mechanism.

[0006] Preferably, the sand-collecting vehicle includes two handles, a sand-collecting hopper, and two wheels; a wheel is installed on each side of the lower center of the sand-collecting hopper; a handle is fixed on each side of the upper part of the end plate of the sand-collecting hopper along the same horizontal direction; the handles of the sand-collecting vehicle and the sand-screening vehicle handle are located on the same side of the sand-screening vehicle.

[0007] Furthermore, the connecting mechanism includes a first connecting plate, connecting bolts, connecting screw holes, and a second connecting plate; both the first and second connecting plates have two connecting screw holes, which match the connecting bolts; the first connecting plate is fixedly connected to the center of the outer side of the guide groove near the first handle of the sand screening vehicle, and is arranged horizontally outward; the second connecting plate is fixedly connected to the center of the upper opening of the second end plate near the second handle of the sand hopper, with the upper openings of both being flush, and the second connecting plate extends outward from the upper opening of the sand hopper and corresponds to the first connecting plate on the sand screening vehicle directly above it; the first connecting plate is screwed into the connecting screw holes on the second connecting plate using two connecting bolts.

[0008] The beneficial effects of this utility model are as follows: 1. The sand screening device of this utility model temporarily stores the screened sand and screened impurities in a handcart, eliminating the need for a second loading and transportation process using a handcart, saving on secondary labor transportation costs, and preventing the reintroduction of impurities, reducing the labor intensity of workers, improving construction efficiency, and achieving good economic benefits; 2. With this type of sand screening device, after screening the sand, there is no need to collect the screened waste sand and other impurities from the ground and then load and transport them to the designated location using a handcart, which also saves a lot of manpower and construction time; 3. Compared with the prior art, this utility model has a simple structure, high degree of automation, safe and reliable use, low failure rate, long service life, and wide range of applications. It can be freely moved and fixed as needed, and can be operated in any confined space, improving construction efficiency and progress. Attached Figure Description

[0009] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0010] Figure 1 This is a perspective view of the first example of the double-car superimposed sand screening device of this utility model.

[0011] Figure 2 This is a schematic diagram of the structure of the first example sand screening vehicle in the double-vehicle stacked sand screening device of this utility model.

[0012] Figure 3 This is a schematic diagram of the sand-collecting vehicle in the double-vehicle superimposed sand screening device of this utility model.

[0013] Figure 4 This is a schematic diagram of the structure of a sand screening vehicle, which is a second example of the double-vehicle superimposed sand screening device of this utility model.

[0014] Figure 5 This is a schematic diagram of the connecting mechanism in the double-car superimposed sand screening device of this utility model.

[0015] In the diagram: 1-Sand screening vehicle, 11-Oscillating motor, 111-Lever, 112-Shaft, 12-Waste sand hopper, 121-End plate one, 13-Guide groove, 14-Handle one, 15-Wheel one, 16-Screen, 2-Sand gathering vehicle, 21-Handle two, 22-Sand gathering hopper, 221-End plate two, 23-Wheel two, 3-Connecting mechanism, 31-Connecting plate one, 32-Connecting bolt, 33-Connecting screw hole, 34-Connecting plate two Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "connected", etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can also refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model should be understood according to the specific circumstances.

[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] like Figure 1 , Figure 2 As shown, a double-car stacked sand screening device includes a sand screening car and a sand collection car. The sand screening car 1 includes a swing motor 11, a waste sand hopper 12, guide troughs 13, a handle 14, wheels 15, and a sieve 16. There are two guide troughs 13 and two waste sand hoppers 12. The two parallel guide troughs 13 are fixedly connected to the two parallel waste sand hoppers 12, and their upper surfaces are on the same horizontal plane. A sieve 16 is fixed at the upper opening of the inner cavity formed by the two guide troughs 13 and the two waste sand hoppers 12. Two oscillating motors 11 are installed at the middle of the upper opening of the two waste sand hoppers 12 respectively. A lever 111 is installed on the upper shaft 112 of the oscillating motor in the horizontal direction, which can swing left and right on the upper surface of the screen 16. A wheel 15 is installed on each side of the middle of the lower bottom surface of the two waste sand hoppers 12. A handle 14 is fixed on the upper inner side of the end plate 121 of each waste sand hopper 12 in the horizontal direction. The sand screening car 1 is superimposed on the sand gathering car 2 through the connecting mechanism 3.

[0020] like Figure 3 As shown, the sand-collecting vehicle 2 includes two handles 21, a sand-collecting hopper 22, and two wheels 23; a wheel 23 is installed on each side of the lower center of the sand-collecting hopper 22; a handle 21 is fixed to each side of the upper part of the end plate 221 of the sand-collecting hopper 22 along the same horizontal direction, and the handles 21 of the sand-collecting vehicle 2 and the handle 14 of the sand-screening vehicle 1 are located on the same side of the sand-screening vehicle 1.

[0021] like Figure 5 As shown, the connecting mechanism 3 includes a first connecting plate 31, connecting bolts 32, connecting screw holes 33, and a second connecting plate 34. Both the first connecting plate 31 and the second connecting plate 34 have two connecting screw holes 33, which are matched with the connecting bolts 32. The first connecting plate 31 is fixedly connected to the center of the outer side of the guide groove 13 near the handle 14 of the sand screening vehicle 1, and is arranged horizontally outwards. The second connecting plate 34 is fixedly connected to the center of the upper opening of the end plate 221 near the handle 21 of the sand hopper 22, with both upper openings flush. The second connecting plate 34 extends outwards from the upper opening of the sand hopper 22 and corresponds to the first connecting plate 31 on the sand screening vehicle 1 directly above it. The first connecting plate 31 is screwed into the connecting screw holes 33 on the second connecting plate 34 using two connecting bolts 32.

[0022] like Figure 4As shown, the two oscillating motors 11 can also be installed in the middle of the two parallel guide grooves 13. A lever 111, which can oscillate left and right on the upper surface of the sieve 16, is installed on the upper shaft 112 of each oscillating motor in the horizontal direction. Alternatively, the two oscillating motors can be replaced with linear travel motors. A lever is installed on the upper shaft of the travel motor in the horizontal direction. The lever is perpendicular to the axis of the guide groove. When the travel motor moves back and forth in the guide groove 13, the operator shovels raw sand and pours it onto the sieve on the sand screening cart. After the raw sand is moved back and forth on the sieve by the lever on the upper part of the travel motor, the fine sand that meets the requirements will fall into the sand collection cart below the sieve, and the impurities contained in the raw sand will be pushed into the two waste sand hoppers on the left and right sides by the lever.

[0023] In the actual operation of Embodiment 1, two parallel guide grooves 13 arranged on the same horizontal plane are fixedly connected to two parallel waste sand hoppers 12 in the vertical direction, with their upper surfaces on the same horizontal plane; a sieve 16 is fixed at the upper opening of the two waste sand hoppers 12, and two swing motors are respectively installed in the middle of the upper opening of the two waste sand hoppers 12. A lever 111 that can swing left and right on the sieve surface of the sand screening vehicle is installed on the rotating shaft 112 at the upper part of the swing motor in the horizontal direction; a wheel 15 is installed in the middle of the lower bottom surface of the two waste sand hoppers 12, and a handle 14 is fixed on each side of its upper surface along the intersection line of the sieve and the waste sand hopper in the same horizontal direction. In this way, a sand screening vehicle is made, and the sand screening vehicle 1 is stacked on top of the sand collection vehicle 2 through the connecting mechanism 3. When the oscillating motor of the sand screening car is connected to the power supply, the lever on the upper shaft of the oscillating motor will swing horizontally back and forth on the surface of the screen of the sand screening car. At this time, the operator uses a shovel to scoop up the raw sand and pours it onto the screen on the sand screening car. After the raw sand is moved left and right by the lever on the upper part of the oscillating motor, the fine sand that meets the requirements will fall into the sand collection car below the screen. The impurities contained in the raw sand are pushed into the two waste sand hoppers on the left and right sides by the lever. When the sand collection car is full of qualified sand or the two waste sand hoppers are full of waste sand, immediately turn off the power of the oscillating motor, disconnect the connection mechanism between the sand screening car and the sand collection car, push the sand collection car out from under the sand screening car and send it to the place where it is needed, push the sand screening car to the waste dump, empty the waste sand hopper, and then start the next cycle of sand screening.

[0024] The above specific examples illustrate the principles and implementation methods of this utility model in detail. These embodiments are only used to help understand the core technical content of this utility model and are not intended to limit the scope of protection of this utility model. The technical solution of this utility model is not limited to the above specific embodiments. Based on the above specific embodiments of this utility model, any improvements and modifications made to this utility model by those skilled in the art without departing from the principles of this utility model should fall within the patent protection scope of this utility model.

Claims

1. A double-car stacked sand screening device, comprising a sand screening car and a sand gathering car, characterized in that: The sand screening vehicle (1) includes a swing motor (11), a waste sand hopper (12), a guide trough (13), a handle (14), a wheel (15), and a sieve (16); there are two guide troughs (13) and two waste sand hoppers (12). The two parallel guide troughs (13) and the two parallel waste sand hoppers (12) are fixedly connected together, and their upper surfaces are on the same horizontal plane; a sieve (16) is fixed at the upper opening of the inner cavity formed by the two guide troughs (13) and the two waste sand hoppers (12). There are two swing motors (11). A lever (111) that can swing left and right on the upper surface of the screen (16) is installed on the upper shaft (112) of the swing motor at the middle of the upper opening of the two waste sand hoppers (12). A wheel (15) is installed on each side of the middle of the lower bottom surface of the two waste sand hoppers (12). A handle (14) is fixed on the upper inner side of the end plate (121) of each waste sand hopper (12) along the horizontal direction to its outer side. The sand screening car (1) is superimposed on the sand gathering car (2) through the connecting mechanism (3).

2. The double-car superimposed sand screening device according to claim 1, characterized in that: The sand-collecting vehicle (2) includes two handles (21), a sand-collecting hopper (22), and two wheels (23); a wheel (23) is installed on each side of the bottom center of the sand-collecting hopper (22); a handle (21) is fixed on each side of the upper part of the end plate (221) of the sand-collecting hopper (22) along the same horizontal direction. The handles (21) of the sand-collecting vehicle (2) and the handles (14) of the sand-screening vehicle (1) are located on the same side of the sand-screening vehicle (1).

3. The double-car superimposed sand screening device according to claim 1, characterized in that: The connecting mechanism (3) includes a connecting plate one (31), a connecting bolt (32), a connecting screw hole (33), and a connecting plate two (34); both the connecting plate one (31) and the connecting plate two (34) have two connecting screw holes (33), which match the connecting bolt (32); the connecting plate one (31) is fixedly connected to the center of the outer side of the guide groove (13) near the handle one (14) of the sand screening car (1), and is set outward in a horizontal direction; the connecting plate two (34) is fixedly connected to the center of the upper opening of the end plate two (221) near the handle two (21) of the sand hopper (22), and the upper openings of the two are flush. The connecting plate two (34) extends outward from the upper opening of the sand hopper (22) and corresponds to the connecting plate one (31) on the sand screening car (1) directly above; the connecting plate one (31) is screwed into the connecting screw hole (33) on the connecting plate two (34) by two connecting bolts (32).

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