Sand screening device for building construction

Abstract

The utility model discloses a building construction sand screening device, and particularly relates to the field of sand screening, which comprises a bottom plate, the top surface of the bottom plate is fixedly communicated with a frame body, a concentric-square-shaped frame is fixedly arranged in the frame body, a sieve plate is arranged in the concentric-square-shaped frame in a sliding manner, one end of the sieve plate is fixedly connected with a plurality of springs, and the middle part of the other end of the sieve plate is fixedly connected with a connecting plate; and a sliding wheel is rotationally installed on the connecting plate, the sliding wheel is arranged on the cam in a sliding mode, a protective frame is detachably installed on one side of the frame body, and a motor is installed in the protective frame. Sand needing to be screened enters the screen plate in the frame body from the feeding port, the screen plate can move left and right under the action of the spring, the motor, the cam, the sliding wheel and the connecting plate, sand with the size smaller than that of screen holes of the screen plate on the screen plate can conveniently penetrate through the screen plate and fall onto the inclined guide plate, and finally the sand is discharged from the discharging port. Sand is screened through the device, the sand screening efficiency can be greatly improved, and meanwhile the burden of workers is relieved.

Description

Technical Field

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

[0002] Construction refers to the production activities of various construction products completed within a specified time and space according to specific design drawings and using various construction materials and mechanical equipment. The construction materials include sand. The sand on the market is mixed with gravel of various sizes. Before mixing it with cement and other materials, it needs to be screened to screen out smaller sand.

[0003] A common sand screening tool is a simple sand screening board, which is placed at an angle. Sand is thrown onto the board manually using tools. Sand that is smaller than the size of the screen holes of the board will pass through the board and be accumulated on the other side of the board. This process is repeated to complete the sand screening. This screening method is inefficient, and manual operation will increase the burden on workers and increase labor costs.

[0004] Therefore, we make improvements to this and propose a sand screening device for construction. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] The utility model discloses a construction sand screening device, comprising a base plate, the top surface of the base plate is fixedly connected to a frame, one side of the frame is provided with a discharge port, and the back side of the frame is provided with a feed port, a circular frame is fixedly installed inside the frame, a screen plate is slidably arranged in the circular frame, one end of the screen plate is fixedly connected to a plurality of springs, the other end of the screen plate is fixedly connected to a connecting plate, a sliding wheel is rotatably installed on the connecting plate, and the sliding wheel is slidably arranged on a cam, a protective frame is detachably installed on one side of the frame, a motor is installed in the protective frame, and the output end of the motor is fixedly connected to the cam through a connecting shaft.

[0007] As a preferred technical solution of the utility model, a slide groove is opened on the inner wall of the circular frame, and one end of the slide groove passes through one side of the frame body, and sealing plates are symmetrically installed on the inner wall of the frame and on both sides of the surface of the slide groove; the connecting plate is located between the two sealing plates.

[0008] As a preferred technical solution of the utility model, guide plates are arranged on all four sides of the circular frame, which are inclined downward, and the guide plates are inclined toward the screen plate; the circular frame is located at the bottom of the feed port, and the bottom end of the feed port is located above the screen plate.

[0009] As a preferred technical solution of the utility model, the spring is installed on the inner wall of the sliding groove away from the sealing plate, and the length of the spring is smaller than the width of the sliding groove.

[0010] As a preferred technical solution of the utility model, a limit plate is installed inside the protection frame and on the side wall of the frame body, a sliding groove is opened at the bottom end of the limit plate, and the connecting plate is slidably connected to the sliding groove;

[0011] A connecting shaft is fixedly connected to the cam, one end of the connecting shaft is fixedly connected to the output end of the motor, and the motor, the cam and the connecting plate are all located in the protective frame.

[0012] As a preferred technical solution of the utility model, a guide plate is obliquely installed inside the frame and at the bottom of the screen plate, and the bottom end of the guide plate is located on the same plane as the discharge port.

[0013] As a preferred technical solution of the utility model, the size of the sieve plate is smaller than the size of the slide slot; a control switch is installed on the front of the frame, and the motor is electrically connected to the control switch.

[0014] The beneficial effects of the utility model are:

[0015] In the utility model, the sand to be screened enters the screen plate in the frame from the feed port, and the screen plate is moved left and right under the action of the spring, motor, cam, sliding wheel and connecting plate, so that the sand on the screen plate with a size smaller than the screen hole size of the screen plate can pass through and fall on the inclined guide plate, and finally be discharged from the discharge port. The sand can be screened by the device, which can greatly improve the sand screening efficiency and reduce the burden on the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of a construction sand screening device of the utility model;

[0018] Figure 2 This is a partial structural diagram of a construction sand screening device of the utility model. Figure 1 ;

[0019] Figure 3 This is a partial structural diagram of a construction sand screening device of the utility model. Figure 2 ;

[0020] Figure 4 yes Figure 3 The enlarged view of point A in the middle;

[0021] Figure 5 This is a partial structural diagram of a construction sand screening device of the utility model. Figure 3 .

[0022] In the figure: 1. bottom plate; 2. frame; 3. discharge port; 4. feed port; 5. protection frame; 6. circular frame; 7. sieve plate; 8. sealing plate; 9. spring; 10. limit plate; 11. connecting plate; 12. motor; 13. cam; 14. sliding wheel; 15. guide plate; 16. slide groove. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0024] Example: Figures 1 to 5 As shown, the utility model is a construction sand screening device, comprising a bottom plate 1, the top surface of the bottom plate 1 is fixedly connected to a frame 2, a discharge port 3 is provided on one side of the frame 2, and a feed port 4 is provided on the back of the frame 2. The device can be used in conjunction with an existing conveying mechanism, and the sieve to be screened is conveyed to the feed port 4 through the conveying mechanism, and the sand can enter the frame 2 through the feed port 4 for screening, and the screened sand will be discharged through the discharge port 3; a top plate is detachably installed on the top of the frame 2, and the sand remaining on the sieve plate 7 can be cleaned out by disassembling the top plate.

[0025] A circular frame 6 is fixedly installed inside the frame 2, and a sieve plate 7 is slidably arranged inside the circular frame 6. A plurality of springs 9 are fixedly connected to one end of the sieve plate 7, and a connecting plate 11 is fixedly connected to the middle of the other end of the sieve plate 7. A sliding wheel 14 is rotatably installed on the connecting plate 11, and the sliding wheel 14 is slidably arranged on the cam 13. A protective frame 5 is detachably installed on one side of the frame 2, and a motor 12 is installed in the protective frame 5, and the output end of the motor 12 is fixedly connected to the cam 13 through a connecting shaft.

[0026] A control switch is installed on the front of the frame 2, and the motor 12 is electrically connected to the control switch. The motor 12 can be started by the control switch, and the motor 12 drives the connecting shaft to rotate, thereby driving the cam 13 to rotate. A sliding groove is provided in the middle of the cam 13, which is slidably connected to the sliding wheel 14. As the cam 13 rotates, it will slide against the sliding wheel 14, and the sliding wheel 14 will push the connecting plate 11, and the connecting plate 11 will drive the sieve plate 7 to move, and the sieve plate 7 will squeeze the spring 9. By setting the spring 9, the distance moved by the sieve plate 7 can be compensated. As the sieve plate 7 moves back and forth, it is convenient for the sand on the sieve plate 7 to fall off. When the spring 9 is in a natural state, both ends of the sieve plate 7 are located in the chute 16, preventing the distance between the sieve plate 7 and the side wall of the chute 16 from being too large, and sand from entering the chute 16.

[0027] A chute 16 is provided on the inner wall of the circular frame 6, and one end of the chute 16 passes through one side of the frame 2. Sealing plates 8 are symmetrically installed on the inner wall of the frame 2 and on both sides of the surface of the chute 16; the connecting plate 11 is located between the two sealing plates 8. The sieve plate 7 can move back and forth along the chute 16, which is conducive to improving the sand screening efficiency.

[0028] Guide plates are arranged on all sides of the circular frame 6, and the guide plates are inclined toward the screen plate 7; the circular frame 6 is located at the bottom of the feed port 4, and the bottom end of the feed port 4 is located above the screen plate 7. The bottom surface of the guide plate is attached to the surface of the screen plate 7 for movement, and the guide plate can guide the sand when it falls from the feed port 4, and block the sand when the screen plate 7 moves.

[0029] The spring 9 is mounted on the inner wall of the chute 16 away from the sealing plate 8, and the length of the spring 9 is less than the width of the chute 16. That is, when the spring 9 is in the natural state, the screen plate 7 is still located in the chute 16.

[0030] A limit plate 10 is installed inside the protective frame 5 and on the side wall of the frame body 2. A sliding groove is opened at the bottom end of the limit plate 10, and the connecting plate 11 is slidably connected to the sliding groove; when the connecting plate 11 moves, it can move along the sliding groove on the limit plate 10, thereby playing a guiding role.

[0031] The cam 13 is fixedly connected with a connecting shaft, one end of which is fixedly connected to the output end of the motor 12, and the motor 12, the cam 13, and the connecting plate 11 are all located in the protection frame 5. The protection frame 5 is detachable, so that the structure in the protection frame 5 can be easily inspected and repaired.

[0032] A guide plate 15 is obliquely installed inside the frame 2 and at the bottom of the screen plate 7, and the bottom end of the guide plate 15 is located on the same plane as the discharge port 3. The screened sand can be discharged from the discharge port 3 along the inclined guide plate 15, and the guide plate 15 can play a guiding role, and the guide plate 15 is arranged in close contact with the inner wall of the frame 2.

[0033] The size of the sieve plate 7 is smaller than that of the slide groove 16 , so that the sieve plate 7 can move back and forth in the slide groove 16 .

[0034] During operation, the sand to be screened enters the sieve plate 7 in the frame 2 from the feed port 4. Under the action of the spring 9, the motor 12, the cam 13, the sliding wheel 14 and the connecting plate 11, the sieve plate 7 moves left and right, so that the sand on the sieve plate 7 that is smaller than the size of the sieve hole of the sieve plate 7 can pass through and fall on the inclined guide plate 15, and finally be discharged from the discharge port 3. The sand can be screened by the device, which can greatly improve the sand screening efficiency and reduce the burden on the staff.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A construction sand screening device, comprising a bottom plate (1), the top surface of the bottom plate (1) being fixedly connected to a frame (2), a discharge port (3) being provided on one side of the frame (2), and a feed port (4) being provided on the back side of the frame (2), characterized in that: A circular frame (6) is fixedly installed inside the frame body (2), a sieve plate (7) is slidably arranged inside the circular frame (6), one end of the sieve plate (7) is fixedly connected to a plurality of springs (9), a connecting plate (11) is fixedly connected to the middle of the other end of the sieve plate (7), a sliding wheel (14) is rotatably installed on the connecting plate (11), and the sliding wheel (14) is slidably arranged on the cam (13), a protective frame (5) is detachably installed on one side of the frame body (2), a motor (12) is installed inside the protective frame (5), and an output end of the motor (12) is fixedly connected to the cam (13) via a connecting shaft.

2. A construction sand screening device according to claim 1, characterized in that: A slide groove (16) is provided on the inner wall of the circular frame (6), and one end of the slide groove (16) passes through one side of the frame body (2). Sealing plates (8) are symmetrically installed on the inner wall of the frame body (2) and on both sides of the surface of the slide groove (16); the connecting plate (11) is located between the two sealing plates (8).

3. A construction sand screening device according to claim 2, characterized in that: Guide plates are arranged on all four sides of the circular frame (6) in a downwardly inclined manner, and the guide plates are inclined in the direction of the sieve plate (7); the circular frame (6) is located at the bottom of the feed port (4), and the bottom end of the feed port (4) is located above the sieve plate (7).

4. A construction sand screening device according to claim 3, characterized in that: The spring (9) is installed on the inner wall of the slide groove (16) away from the sealing plate (8), and the length of the spring (9) is smaller than the width of the slide groove (16).

5. A construction sand screening device according to claim 1, characterized in that: A limit plate (10) is installed inside the protection frame (5) and on the side wall of the frame body (2), a sliding groove is provided at the bottom end of the limit plate (10), and the connecting plate (11) is slidably connected to the sliding groove; The cam (13) is fixedly connected to a connecting shaft, one end of which is fixedly connected to an output end of the motor (12), and the motor (12), the cam (13) and the connecting plate (11) are all located in the protective frame (5).

6. A construction sand screening device according to claim 1, characterized in that: A guide plate (15) is obliquely installed inside the frame (2) and at the bottom of the sieve plate (7), and the bottom end of the guide plate (15) is located on the same plane as the discharge port (3).

7. A construction sand screening device according to claim 1, characterized in that: The size of the sieve plate (7) is smaller than the size of the slide groove (16); a control switch is installed on the front of the frame (2), and the motor (12) is electrically connected to the control switch.

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