Sand filtering mechanism for civil engineering

Abstract

The utility model relates to the technical field of civil engineering, and discloses a sand filtering mechanism for civil engineering, which comprises a sand screening mechanism and a sand conveying mechanism, the sand screening mechanism comprises a case, a filter screen and a sand spreading assembly, the top of the case is provided with a first feed port, and the bottom of the case is provided with a first discharge port; the filter screen is arranged in the machine box and arranged between the first feeding port and the first discharging port, one side of the filter screen is hinged to the machine box, a driving air cylinder is arranged on the other side of the filter screen, a discharging port is further formed in one side of the machine box, and the driving air cylinder can drive one end of the filter screen to be communicated with the discharging port; the sand screening device has the following advantages that 1, unqualified sand grains can be automatically removed, efficient sand screening is kept, the unqualified sand grains do not need to be manually removed, and construction is facilitated; and 2, automatic sand feeding and automatic sand screening can be realized, so that the labor intensity of workers can be reduced, and the labor cost can be saved.

Description

Technical Field

[0001] The utility model relates to the technical field of civil engineering, in particular to a sand filtering mechanism for civil engineering. Background Art

[0002] In the process of construction, sand of different diameters is usually required to meet the construction needs of different occasions, so the sand needs to be filtered before use.

[0003] Sand screening machine is the most commonly used sand filtering equipment, but the existing sand screening machine cannot remove unqualified sand in time during the sand screening process. The unqualified sand will stay on the filter for a long time, resulting in the gradual decrease of the sand filtering efficiency of the sand screening machine. Manual cleaning of the sand is required to restore the sand filtering efficiency, which consumes high labor costs and is inconvenient to use. In order to solve the above technical problems, the inventor has made a new invention. Utility Model Content

[0004] The utility model aims to provide a sand filtering mechanism for civil engineering in view of the deficiencies of the prior art, which has the characteristics of high sand screening efficiency and labor saving.

[0005] To achieve the above-mentioned purpose, the utility model is a sand filtering mechanism for civil engineering, including a sand screening mechanism and a sand delivering mechanism, the sand screening mechanism including a chassis, a filter screen and a sand spreading assembly, the chassis is provided with a first feed port on the top, and a first discharge port on the bottom; the filter screen is arranged inside the chassis, and the filter screen is arranged between the first feed port and the first discharge port, one side of the filter screen is hinged to the chassis, and the other side of the filter screen is provided with a driving cylinder, and one side of the chassis is also provided with a discharge port, and the driving cylinder can drive one end of the filter screen to communicate with the discharge port; the sand spreading assembly is arranged above the filter screen and is used to assist in sand filtering; the sand delivering mechanism is used to automatically deliver material to the first feed port.

[0006] Preferably, the sand spreading assembly includes a first drive motor and a strip-shaped sand pushing piece, wherein the first drive motor is disposed on the top of the chassis, and the first drive motor is drivingly connected to the strip-shaped sand pushing piece.

[0007] Preferably, a buffer groove is provided on the side wall of the chassis, and the hinged end of the filter is provided in the buffer groove.

[0008] Preferably, a first material guide plate is fixedly connected to the outer end of the discharge port.

[0009] Preferably, the sand feeding mechanism includes a second driving motor, an outer box, and a first screw rod disposed inside the outer box; a plurality of spiral blades are sequentially arranged on the first screw rod from top to bottom, and the second driving motor is drivingly connected to the first screw rod; a second feeding port is disposed at the bottom end of the outer box, and a second discharging port for discharging sand is disposed at the top of the outer box, and the first screw rod is disposed between the second feeding port and the second discharging port.

[0010] Preferably, a second guiding plate is fixedly disposed at the outer end of the second discharging port.

[0011] Preferably, a second screw rod is further disposed at one end of the outer box close to the second discharging port, and a third driving motor is further included, the third driving motor is drivingly connected to the second screw rod, and the second screw rod is used for pushing sand to the first screw rod.

[0012] Beneficial effects: Compared with the prior art, the utility model is a sand filtering mechanism for civil engineering, including a sand screening mechanism and a sand feeding mechanism. The sand screening mechanism includes a machine box, a filter screen, and a sand spreading assembly. A first feeding port is disposed at the top of the machine box, and a first discharging port is disposed at the bottom of the machine box; the utility model has the following advantages: 1. It can automatically remove unqualified sand grains, maintain efficient sand screening, and does not require manual removal of unqualified sand grains, which is convenient for construction; 2. It can realize automatic sand feeding and automatic sand screening, which can not only reduce the labor intensity of workers but also save labor costs. Description of the Drawings

[0013] Figure 1 is a three-dimensional structural schematic diagram of the utility model.

[0014] Figure 2 is an internal structural schematic diagram of the utility model.

[0015] The reference numerals include:

[0016] Sand screening mechanism - 1, machine box - 11, filter screen - 12, sand spreading assembly - 13, first driving motor - 131, strip-shaped sand pushing member - 132, first feeding port - 14, first discharging port - 15, driving cylinder - 16, discharging port - 17, first guiding plate - 171, buffer groove - 18, sand feeding mechanism - 2, second driving motor - 21, outer box - 22, second feeding port - 221, second discharging port - 222, second guiding plate - 223, first screw rod - 23, spiral blade - 231, second screw rod - 24, third driving motor - 25. Detailed Description of the Invention

[0017] The following will Figures 1 to 2 be described in detail with reference to the attached

[0018] The utility model discloses a sand filtering mechanism for civil engineering, comprising a sand screening mechanism 1 and a sand delivery mechanism 2, wherein the sand screening mechanism 1 comprises a chassis 11, a filter screen 12 and a sand spreading assembly 13, wherein a first feed port 14 is arranged at the top of the chassis 11, and a first discharge port 15 is arranged at the bottom of the chassis 11; the filter screen 12 is arranged inside the chassis 11, and the filter screen 12 is arranged between the first feed port 14 and the first discharge port 15, one side of the filter screen 12 is hinged to the chassis 11, and a driving cylinder 16 is arranged at the other side of the filter screen 12, and a discharge port 17 is also arranged at one side of the chassis 11, and the driving cylinder 16 can drive one end of the filter screen 12 to communicate with the discharge port 17; the sand spreading assembly 13 is arranged above the filter screen 12 and is used for assisting sand filtering; the sand delivery mechanism 2 is used for automatically delivering material to the first feed port 14.

[0019] When the sand feeding mechanism 2 feeds sand into the first feed port 14 of the chassis 11, the sand falls onto the top of the filter screen 12 and is immediately spread out by the sand spreading component 13. The spread out sand particles that meet the specifications are filtered by the filter screen 12 and discharged from the first discharge port 15, while the sand that does not meet the specifications stays above the filter screen 12. The starting frequency of the driving cylinder 16 can be set by the control program. When the running time of the driving cylinder 16 is reached, the sand feeding mechanism 2 stops feeding, and the driving cylinder 16 drives one end of the filter screen 12 to swing downward with a swing amplitude of 45 to 60 degrees. When the filter screen 12 is tilted, the unqualified sand particles staying on the filter screen 12 are discharged from the discharge port 17 and can be recycled by an external material barrel.

[0020] The utility model can realize automatic removal of unqualified sand particles, maintain efficient sand screening, and does not need manual removal of unqualified sand particles, which is convenient for construction; at the same time, it can realize automatic sand delivery and automatic sand screening, which can reduce manual labor intensity and save labor costs.

[0021] In the present technical solution, the sand spreading assembly 13 includes a first drive motor 131 and a strip sand pushing piece 132. The first drive motor 131 is arranged on the top of the chassis 11, and the first drive motor 131 is connected to the strip sand pushing piece 132. The first drive motor 131 drives the strip sand pushing piece 132 to rotate above the filter screen 12, and the sand falling on the filter screen 12 is spread by the strip sand pushing piece 132, and the sand is continuously screened to realize automatic sand screening.

[0022] As an embodiment, a buffer groove 18 is provided on the side wall of the chassis 11, and the hinged end of the filter 12 is provided in the buffer groove 18. The buffer groove 18 prevents the filter 12 from being blocked during the movement.

[0023] To further improve the technical solution, the outer end of the discharge port 17 is fixedly connected with a first guide plate 171. The first guide plate 171 has a guiding function, and assists in orderly collecting and storing unqualified sand discharged from the chassis 11.

[0024] As an embodiment, the sand feeding mechanism 2 includes a second driving motor 21, an outer box 22, and a first screw rod 23 disposed inside the outer box 22; a plurality of spiral blades 231 are sequentially arranged on the first screw rod 23 from top to bottom, and the second driving motor 21 is drivingly connected to the first screw rod 23; a second feeding port 221 is provided at the bottom end of the outer box 22, and a second discharging port 222 for discharging sand is provided at the top of the outer box 22. The first screw rod 23 is disposed between the second feeding port 221 and the second discharging port 222. When the sand feeding mechanism 2 is in use, sand is first put into the outer box 22 from the second feeding port 221, the second driving motor 21 drives the first screw rod 23 to rotate, and the spiral blades drive the sand to be pushed from the bottom end of the screw rod to the top end of the outer box 22 until the sand is discharged from the second discharging port 222 and flows into the sand screening mechanism 1. The utility model can realize automatic sand feeding, without the need for manual laborious material transportation, effectively reducing the labor force and saving the labor cost.

[0025] Preferably, a second guiding plate 223 is fixedly provided at the outer end of the second discharging port 222. The sand flows into the interior of the machine box 11 from the first feeding port 14 along the guidance of the second guiding plate 223, maintaining stable guiding.

[0026] Preferably, a second screw rod 24 is further provided at one end of the outer box 22 close to the second discharging port 222, and a third driving motor 25 is further included. The third driving motor 25 is drivingly connected to the second screw rod 24. After the sand is manually put into the second feeding port 221, the second screw rod 24 pushes the sand step by step to the bottom end of the first screw rod 23 under the drive of the third driving motor 25, so that the sand is always concentrated at the bottom end of the first screw rod 23, facilitating the continuous upward pushing of the sand by the first screw rod 23.

[0027] The above content is only a preferred embodiment of the present utility model. For those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation manner and application scope. The content of this specification should not be construed as a limitation to the present utility model.

Claims

1. A sand filtering mechanism for civil engineering projects, characterized in that: It includes a sand screening mechanism (1) and a sand feeding mechanism (2). The sand screening mechanism (1) includes a machine case (11), a filter screen (12), and a sand spreading component (13). A first feeding port (14) is arranged at the top of the machine case (11), and a first discharging port (15) is arranged at the bottom of the machine case (11). The filter screen (12) is arranged inside the machine case (11) and is between the first feeding port (14) and the first discharging port (15). One side of the filter screen (12) is hinged to the machine case (11), and a driving cylinder (16) is arranged on the other side of the filter screen (12). A discharging port (17) is also arranged on one side of the machine case (11), and the driving cylinder (16) can drive one end of the filter screen (12) to communicate with the discharging port (17). The sand spreading component (13) is arranged above the filter screen (12) and is used to assist in sand screening. The sand feeding mechanism (2) is used to automatically feed materials to the first feeding port (14).

2. The sand filtering mechanism for civil engineering works according to claim 1, wherein: The sand spreading component (13) includes a first driving motor (131) and a strip-shaped sand pushing member (132). The first driving motor (131) is arranged at the top of the machine case (11), and the first driving motor (131) is drivingly connected to the strip-shaped sand pushing member (132).

3. The sand filtering mechanism for civil engineering works according to claim 1, characterized in that: A buffer groove (18) is arranged on the side wall of the machine case (11), and the hinged end of the filter screen (12) is arranged in the buffer groove (18).

4. A sand filtering mechanism for civil engineering works according to claim 1, characterized in that: A first guiding plate (171) is fixedly connected to the outer end of the discharging port (17).

5. The sand filtering mechanism for civil engineering works according to claim 1, characterized in that: The sand feeding mechanism (2) includes a second driving motor (21), an outer box (22), and a first screw rod (23) arranged inside the outer box (22). A plurality of spiral blades (231) are arranged on the first screw rod (23) from top to bottom in sequence, and the second driving motor (21) is drivingly connected to the first screw rod (23). A second feeding port (221) is arranged at the bottom end of the outer box (22), and a second discharging port (222) for discharging sand is arranged at the top of the outer box (22). The first screw rod (23) is arranged between the second feeding port (221) and the second discharging port (222).

6. The sand filtering mechanism for civil engineering works according to claim 5, characterized in that: A second guiding plate (223) is fixedly arranged at the outer end of the second discharging port (222).

7. The sand filtering mechanism for civil engineering works according to claim 5, wherein: A second screw rod (24) is also arranged at one end of the outer box (22) close to the second discharging port (222), and a third driving motor (25) is further included. The third driving motor (25) is drivingly connected to the second screw rod (24), and the second screw rod (24) is used to push sand to the first screw rod (23).

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