Sand screening device for building construction

Abstract

The utility model discloses a sand screening device for building construction, which structurally comprises a main body unit and a sand screening unit, the main body unit comprises a shell, the top of the shell is provided with a feed opening, and the bottom of the shell is provided with a foot stool; and the feeding assembly comprises a driving motor. When the sand screening device is used, sand is put into the discharging opening, the sand is crushed through the crushing roller and then falls into the conveying cylinder, when the crushing roller rotates, the auger conveying rod rotates through the transmission effect of the chain wheel and the chain, the sand in the conveying cylinder is conveyed forwards, and the sand falls onto the first screening plate through the through groove; meanwhile, an auger conveying rod stirs the sand to increase the fluidity of the sand, the sand is prevented from being accumulated in a conveying cylinder to cause blockage of a through groove, the sand can be flatly laid on a first screening plate, the situation that a large amount of sand is completely accumulated at one position to reduce the screening effect is prevented, and the screened sand is pushed out through a discharging assembly; and the cleaning brush can effectively prevent the sand from being discharged completely due to the fact that fine sand adheres to the inner bottom wall of the shell.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a sand screening device for building construction. Background Technology

[0002] Sand screening devices used in construction are specialized equipment for screening and washing sand. They effectively remove impurities, stones, and other large particles from the sand, ensuring its purity and quality to meet the needs of construction projects. With the continuous development of the construction industry, the requirements for the quality of building materials and construction efficiency are becoming increasingly stringent. As one of the important pieces of equipment for improving sand quality, the market demand for sand screening devices is also constantly increasing.

[0003] A sand screening device for construction disclosed in publication number CN217120878U improves screening efficiency and effect through multiple screening processes; it achieves complete crushing of large sand pieces through the combined use of main crushing blades and auxiliary crushing teeth, thereby improving screening effect; it prevents clogging of screen plates and screens by setting up vibrators and shaking mechanisms, thus improving screening efficiency; and it facilitates the crushing and collection of screened debris and other impurities through the combined use of first chute, second chute, and stirring blades, saving time and labor.

[0004] However, when this utility model is used, the sand that falls and is crushed at the feeding port usually accumulates below the feeding port. When a large amount of sand is fed at one time, there is a lot of crushed sand. When it all piles up in one place on the screen plate, the vibration and dispersion effect is not obvious, which may reduce the screening effect. In addition, the screened sand slides into the discharge pipe through the slope and is discharged. If the moisture content of the sand is high, a layer of fine sand may adhere to the slope or pipe wall, making it difficult to discharge cleanly and clean. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Therefore, to solve the above-mentioned technical problems, this utility model provides the following technical solution: a sand screening device for construction, which includes:

[0007] The main unit includes a housing, with a discharge port installed on the top of the housing and a support frame installed on the bottom of the housing;

[0008] The feeding assembly includes a drive motor, the output end of which is connected to a drive gear. A driven gear meshes with the surface of the drive gear. A crushing roller is installed on one side of the driven gear and is installed inside the feeding port. A drive sprocket is provided at the other end of the crushing roller. A chain meshes with the drive sprocket, and a driven sprocket meshes with the chain. An auger conveyor rod is installed on one side of the driven sprocket.

[0009] The material discharge assembly includes a threaded rod, one end of which is fixed with a handle. A push plate is threadedly connected to the surface of the threaded rod. A cleaning brush is provided at the bottom of the push plate. An insertion hole is provided on the other side of the push plate, and a limit rod is inserted into the insertion hole.

[0010] In a preferred embodiment of the sand screening device for building construction described in this utility model, a first screening plate and a second screening plate are provided inside the outer shell, and a vibration motor is provided at the bottom of the first screening plate and the second screening plate. The vibration motor is installed on the inner wall of the outer shell.

[0011] In a preferred embodiment of the sand screening device for construction described in this utility model, the first screening plate and the second screening plate are both inclined, and the inclination direction of the first screening plate and the second screening plate is connected to the impurity discharge port.

[0012] As a preferred embodiment of the sand screening device for building construction described in this utility model, a conveying cylinder is further installed on the inner wall of the outer shell, and the conveying cylinder is located at the bottom of the discharge port.

[0013] As a preferred embodiment of the sand screening device for construction described in this utility model, the auger conveyor rod is installed inside the conveying cylinder, and a through groove is provided at the bottom of the conveying cylinder.

[0014] As a preferred embodiment of the sand screening device for construction described in this utility model, two discharge ports are installed on one side of the outer shell, and discharge ports are installed on both the front and back of the outer shell.

[0015] The beneficial effects of this utility model are:

[0016] In operation, sand is fed into the inlet and crushed by the crushing rollers before falling into the conveying cylinder. As the crushing rollers rotate, the auger conveyor rod rotates through the transmission action of the sprocket and chain, conveying the sand forward through the trough onto the first screening plate. At the same time, the auger conveyor rod agitates the sand, increasing its fluidity and preventing it from accumulating in the conveying cylinder and clogging the trough. This allows the sand to be spread evenly on the first screening plate, preventing a large amount of sand from gathering in one place and reducing the screening effect. The screened sand is then pushed out by the discharge assembly. The cleaning brush effectively prevents fine sand from adhering to the inner bottom wall of the casing, thus preventing incomplete sand discharge. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0018] Figure 1 This is a schematic diagram of the overall structure of the sand screening device for building construction according to this utility model.

[0019] Figure 2 This is a schematic diagram of the feeding component of the sand screening device for building construction according to this utility model.

[0020] Figure 3 This is a schematic diagram of the auger conveyor rod of the sand screening device used in building construction according to this utility model.

[0021] Figure 4 This is a schematic diagram of the material discharge component of the sand screening device for building construction according to this utility model.

[0022] Figure 5 This is a cross-sectional structural diagram of the sand screening device used in building construction according to this utility model.

[0023] In the diagram: 100, main unit; 101, outer shell; 1011, first screening plate; 1012, second screening plate; 1013, vibrating motor; 1014, conveyor cylinder; 1015, waste discharge port; 1016, discharge port; 102, unloading port; 103, support frame;

[0024] 200. Feeding assembly; 201. Drive motor; 202. Drive gear; 203. Driven gear; 204. Crushing roller; 205. Drive sprocket; 206. Chain; 207. Driven sprocket; 208. Screw conveyor rod;

[0025] 300. Discharge assembly; 301. Threaded rod; 302. Handle; 303. Push plate; 304. Cleaning brush; 305. Limit rod. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0029] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0030] Example 1

[0031] Reference Figure 1-5 This is the first embodiment of the present invention, which provides a sand screening device for construction, the structure of which includes:

[0032] The main unit 100 includes a housing 101. A feeding port 102 is installed on the top of the housing 101, and a foot bracket 103 is installed on the bottom of the housing 101. During use, sand is fed into the feeding port 102, and the feeding component 200 crushes the sand and spreads it on the first screening plate 1011. The vibration motor 1013 is started to make the first screening plate 1011 and the second screening plate 1012 vibrate. After the sand is filtered twice, the sand is pushed out from the discharge port 1016 through the discharge component 300.

[0033] The feeding assembly 200 includes a drive motor 201. A drive gear 202 is connected to the output end of the drive motor 201. A driven gear 203 meshes with the surface of the drive gear 202. A crushing roller 204 is mounted on one side of the driven gear 203 and is installed inside the discharge port 102. A drive sprocket 205 is located at the other end of the crushing roller 204. A chain 206 meshes with the drive sprocket 205, and a driven sprocket 207 meshes with the chain 206. An auger conveyor rod 208 is mounted on one side of the driven sprocket 207. During operation, starting the drive motor 201 causes the drive gear 202 to rotate, thereby driving... The meshing driven gear 203 rotates, causing the two crushing rollers 204 to rotate inward to crush the sand. The crushed sand falls into the conveying cylinder 1014. When the crushing rollers 204 rotate, they drive the drive sprocket 205 to rotate. Through the transmission of the meshing chain 206, the driven sprocket 207 rotates accordingly. The driven sprocket 207 drives the auger conveying rod 208 installed on one side to rotate, conveying the sand in the conveying cylinder 1014 forward, so that it falls into the first screening plate 1011 through the trough. At the same time, the auger conveying rod 208 agitates the sand to increase its fluidity and prevent it from accumulating in the conveying cylinder 1014 and causing blockage of the trough.

[0034] The discharge assembly 300 includes a threaded rod 301, with a handle 302 fixed to one end of the threaded rod 301. A push plate 303 is threadedly connected to the surface of the threaded rod 301. A cleaning brush 304 is provided at the bottom of the push plate 303. An insertion hole is provided on the other side of the push plate 303, and a limiting rod 305 is inserted into the insertion hole. During use, rotating the handle 302 causes the threaded rod 301 to rotate. Under the limiting action of the limiting rod 305 on the other side, the push plate 303 moves forward. The push plate 303 and the cleaning brush 304 at the bottom can push the screened sand out of the discharge port 1016 from the outer casing 101, so that the sand can be discharged from the discharge ports 1016 on the front and back.

[0035] Furthermore, a first screening plate 1011 and a second screening plate 1012 are provided inside the outer casing 101. A vibration motor 1013 is provided at the bottom of the first screening plate 1011 and the second screening plate 1012. The vibration motor 1013 is installed on the inner wall of the outer casing 101. When the vibration motor 1013 is started, the first screening plate 1011 and the second screening plate 1012 vibrate, which can shake the sand on them. The double filtration increases the filtration effect of the sand.

[0036] Furthermore, both the first screening plate 1011 and the second screening plate 1012 are inclined. The inclined direction of the first screening plate 1011 and the second screening plate 1012 is connected to the discharge port 1015. The inclined setting of the first screening plate 1011 and the second screening plate 1012 allows large-volume particles to be discharged from the discharge port 1015 along their inclined direction after the sand is screened.

[0037] Furthermore, a conveying cylinder 1014 is installed on the inner wall of the outer shell 101. The conveying cylinder 1014 is located at the bottom of the discharge port 102. The crushed sand in the discharge port 102 passes through the conveying cylinder 1014 and is evenly spread on the first screening plate 1011 to prevent the sand from accumulating in one place and causing blockage.

[0038] Furthermore, the auger conveyor rod 208 is installed inside the conveying cylinder 1014. A through groove is provided at the bottom of the conveying cylinder 1014. The crushed sand falls into the conveying cylinder 1014 and is conveyed forward by the auger conveyor rod 208, and discharged through the through groove at the bottom of the conveying cylinder 1014.

[0039] Furthermore, two discharge ports 1015 are installed on one side of the outer shell 101, and discharge ports 1016 are installed on both the front and back of the outer shell 101. Larger particles after screening on the first screening plate 1011 and the second screening plate 1012 can be discharged through the discharge ports 1015, and qualified sand can be discharged through the discharge ports 1016.

[0040] During use, sand is fed into the feed inlet 102, and the feeding component 200 crushes the sand and spreads it on the first screening plate 1011. The drive motor 201 is started to make the drive gear 202 rotate, which in turn drives the meshing driven gear 203 to rotate, causing the two crushing rollers 204 to rotate inward to crush the sand. The crushed sand falls into the conveying cylinder 1014.

[0041] Then, when the crushing roller 204 rotates, it drives the drive sprocket 205 to rotate. Through the transmission of the meshing chain 206, the driven sprocket 207 rotates accordingly. The driven sprocket 207 drives the auger conveyor rod 208 installed on one side to rotate, which conveys the sand in the conveying cylinder 1014 forward, so that it falls into the first screening plate 1011 through the through groove. At the same time, the auger conveyor rod 208 agitates the sand to increase its fluidity and prevents it from accumulating in the conveying cylinder 1014 and causing blockage of the through groove.

[0042] Finally, the sand falls onto the first screening plate 1011. The vibration motor 1013 is started to make the first screening plate 1011 and the second screening plate 1012 vibrate, thus performing double filtration on the sand. The larger particles after screening on the first screening plate 1011 and the second screening plate 1012 are discharged through the discharge port 1015 along their inclined direction. Then, the handle 302 is turned to make the threaded rod 301 rotate. The push plate 303 moves forward under the limiting action of the limiting rod 305 on the other side. The push plate 303 and the bottom cleaning brush 304 can push the screened sand out of the outer casing 101 through the discharge port 1016, so that the sand can be discharged from the discharge ports 1016 on the front and back.

[0043] It is worth noting that the entire device is controlled by a controller. Since the controller is a common device and belongs to existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A sand screening device for use in construction, characterized by: Comprising, The body unit (100) comprises a shell (101), a feed opening (102) is installed at the top of the shell (101), and a foot support (103) is installed at the bottom of the shell (101); The feeding assembly (200) comprises a driving motor (201), the output end of the driving motor (201) is connected with a driving gear (202), the surface of the driving gear (202) is engaged with a driven gear (203), one side of the driven gear (203) is installed with a crushing roller (204), the crushing roller (204) is installed in the feed opening (102), the other end of the crushing roller (204) is provided with a driving chain wheel (205), the driving chain wheel (205) is engaged with a chain (206), the chain (206) is engaged with a driven chain wheel (207), one side of the driven chain wheel (207) is installed with an auger conveying rod (208); The discharging assembly (300) comprises a threaded rod (301), one end of the threaded rod (301) is fixed with a handle (302), the surface of the threaded rod (301) is threadedly connected with a push plate (303), the bottom of the push plate (303) is provided with a cleaning brush (304), the other side of the push plate (303) is provided with a insertion hole, and the insertion hole is inserted with a limiting rod (305).

2. The sand screening device for construction work according to claim 1, wherein: The shell (101) is provided with a first screening plate (1011) and a second screening plate (1012), the bottom of the first screening plate (1011) and the second screening plate (1012) is provided with a vibration motor (1013), and the vibration motor (1013) is installed on the inner wall of the shell (101).

3. The sand screening device for construction work according to claim 2, wherein: The first screening plate (1011) and the second screening plate (1012) are both inclined, and the inclination directions of the first screening plate (1011) and the second screening plate (1012) are connected with the impurity discharge port (1015).

4. The sand screening device for construction work according to claim 1, wherein: The inner wall of the shell (101) is also provided with a conveying cylinder (1014), and the conveying cylinder (1014) is located at the bottom of the feed opening (102).

5. The sand screening device for construction work according to claim 4, wherein: The auger conveying rod (208) is installed in the inner part of the conveying cylinder (1014), and the bottom of the conveying cylinder (1014) is provided with a through groove.

6. The sand screening device for construction work according to claim 1, wherein: Two impurity discharge ports (1015) are installed on one side of the shell (101), and a discharging port (1016) is installed on the front and back of the shell (101).

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