A sand screening device for construction engineering

Abstract

This utility model belongs to the field of construction engineering technology. It discloses a sand screening device for construction engineering. The device includes a rotating tube, one end of which is fixedly connected to a connecting plate. A motor is mounted on the side of the connecting plate away from the rotating tube, and the motor is fixed at the center of the side of the connecting plate away from the rotating tube. A screen is slidably connected inside the rotating tube. This device uses a spring to push a pressing plate along a support shaft on one side of a positioning block, thereby allowing the pressing plate to drive the rotating shaft and telescopic rod to slide along the positioning hole to connect the rotating tube and the screen. This increases the ease of screen disassembly. The use of a sliding sleeve sliding outside the positioning block achieves unified control over the lifting or resetting of the pressing plate. This solves the problem of slow and difficult disassembly when replacing existing screens using bolt connections, thus improving the convenience of screen replacement.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and more specifically, to a sand screening device for building engineering. Background Technology

[0002] Construction engineering refers to the engineering entity formed by the construction of various types of buildings and their ancillary facilities, as well as the installation of supporting lines, pipelines, and equipment. Among them, "buildings" refer to projects with roofs, beams, columns, walls, foundations, and the ability to form internal spaces to meet people's needs for production, living, learning, and public activities. Sand, stones, and other particles are needed when constructing walls or filling floors, and sand needs to be screened to meet the required specifications using sand screening devices.

[0003] Existing sand screening devices use a drum structure with a screen. One end is raised, and sand of different sizes is added into the drum along one end. The rotation of the drum filters out the fine sand particles, while the larger sand particles flow out from the lower end due to gravity, thus achieving the screening of sand particles of different sizes.

[0004] However, different particle sizes of sand are required in different usage scenarios. The screen of the equipment is fixed and therefore needs to be replaced. The existing screen replacement method uses bolt connection, which is slow and difficult to disassemble. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, this utility model proposes a sand screening device for construction engineering.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sand screening device for construction engineering, comprising a rotating tube, a connecting plate fixedly connected to one end of the rotating tube, a motor disposed on the side of the connecting plate away from the rotating tube, the motor being fixed at the center position on the side of the connecting plate away from the rotating tube, a screen being slidably connected inside the rotating tube, and positioning holes being provided through the rotating tube and the screen near the connecting plate on the outside, with four sets of positioning holes arranged in a circumferential array inside the rotating tube and the screen, a telescopic rod being slidably connected inside the positioning holes, a rotating shaft being rotatably connected inside the telescopic rod away from the positioning holes, pressing plates being fixedly connected to both ends of the rotating shaft, and a pushing component being disposed on the side of the pressing plate near the telescopic rod.

[0007] Furthermore, the pushing component includes a positioning block, which is fixedly connected to the outside of the rotating tube. The telescopic rod is slidably connected to the inside of the positioning block. A spring is fixedly connected to the side of the pressing plate near the positioning block away from the telescopic rod. The end of the spring away from the pressing plate is fixedly connected to the inside of the positioning block in an inclined manner.

[0008] Furthermore, the pressing plate is rotatably connected to a support shaft, the support shaft is fixedly connected to the inside of the positioning block, and the positioning block is slidably connected to a sliding sleeve.

[0009] Furthermore, a bushing is rotatably connected to the outside of the rotating tube away from the connecting plate, a support plate is rotatably connected to the outside of the bushing, a support block is fixedly connected to the outside of the motor, and a feeding assembly is provided above the support block.

[0010] Furthermore, the feeding assembly includes a feeding box, which is arranged in the shape of a "<". A support rod is fixedly connected to the outside of the feeding box, and there are four sets of support rods arranged in a rectangular array.

[0011] Furthermore, the end of the support rod away from the feed box is fixedly connected to the top of the support block, and a control panel is fixedly connected to the side of the support block away from the connecting plate. The control panel is connected to the motor.

[0012] The technical effects and advantages of this utility model of a sand screening device for construction engineering are as follows:

[0013] A spring pushes the pressing plate to rotate along the support shaft on one side of the positioning block, thereby allowing the pressing plate to drive the rotating shaft and telescopic rod to slide along the positioning hole to connect the rotating tube and the screen. This increases the convenience of screen disassembly. The use of a sliding sleeve to slide outside the positioning block achieves unified control over the lifting or resetting of the pressing plate. This solves the problem that the existing screen replacement method uses bolt connections, which is slow and difficult to disassemble during replacement, thus improving the convenience of screen replacement. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the positioning block in this utility model.

[0017] Figure 4 In this utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0018] Figure 5 This is a schematic diagram of the positioning block structure in this utility model.

[0019] In the picture:

[0020] 1. Rotating tube; 2. Screen; 3. Positioning block; 4. Telescopic rod; 5. Rotating shaft; 6. Pressing plate; 7. Spring; 8. Positioning hole; 9. Support shaft; 10. Bushing; 11. Support plate; 12. Connecting plate; 13. Motor; 14. Control panel; 15. Sliding sleeve; 16. Support rod; 17. Feed box; 18. Support block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-5 As shown, a sand screening device for construction engineering includes a rotating tube 1. A connecting plate 12 is fixedly connected to one end of the rotating tube 1. A motor 13 is installed on the side of the connecting plate 12 away from the rotating tube 1. The motor 13 is fixed at the center position on the side of the connecting plate 12 away from the rotating tube 1. A screen 2 is slidably connected inside the rotating tube 1. Positioning holes 8 are provided through the rotating tube 1 and the screen 2 near the connecting plate 12. There are four sets of positioning holes 8 arranged in a circumferential array inside the rotating tube 1 and the screen 2. A telescopic rod 4 is slidably connected inside the positioning holes 8. A rotating shaft 5 is rotatably connected inside the telescopic rod 4 away from the positioning holes 8. Pressing plates 6 are fixedly connected to both ends of the rotating shaft 5. A pushing assembly is provided on the side of the pressing plate 6 near the telescopic rod 4. The pushing assembly includes a positioning block 3. The positioning block 3 is fixedly connected to the outside of the rotating tube 1. The telescopic rod 4 is slidably connected to the inside of the positioning block 3. A spring 7 is fixedly connected on the side of the pressing plate 6 near the positioning block 3 away from the telescopic rod 4. The end of the spring 7 away from the pressing plate 6 is inclined and fixedly connected to the inside of the positioning block 3.

[0023] When sand sieving is required, sand is added to the screen 2 along the position of motor 13. Motor 13 is then started, causing connecting plate 12 to rotate, which in turn rotates rotating tube 1. To ensure synchronized rotation of screen 2 and rotating tube 1, spring 7 pushes pressing plate 6, moving rotating shaft 5 towards positioning block 3. This tilts pressing plate 6, causing telescopic rod 4 to push into positioning hole 8, thus connecting rotating tube 1 and screen 2. This ensures synchronized rotation of screen 2 with rotating tube 1. When different particles need to be sieved, pressing pressing plate 6 compresses spring 7. This causes the other end of the pressing plate 6 to tilt upwards, allowing the pressing plate 6 to move the rotating shaft 5 and the telescopic rod 4. This causes the telescopic rod 4 to disengage from the positioning hole 8 of the screen 2, allowing the screen 2 to be removed. After the screen 2 is removed, a screen 2 of the required specifications can be inserted. Releasing the pressing plate 6 then allows the spring 7 to push the rotating shaft 5 and the telescopic rod 4 to slide along the positioning hole 8, thus fixing the rotating tube 1 and the screen 2 in place again. This achieves the effect of quickly replacing the screen 2, solving the problem that the existing method of replacing the screen 2 uses bolt connections, which is slow and difficult to disassemble. This improves the convenience of replacing the screen 2.

[0024] like Figures 1-5 As shown, a support shaft 9 is rotatably connected inside the pressing plate 6, and the support shaft 9 is fixedly connected inside the positioning block 3. A sliding sleeve 15 is slidably connected to the outside of the positioning block 3. A bushing 10 is rotatably connected to the outside of the rotating tube 1 away from the connecting plate 12. A support plate 11 is rotatably connected to the outside of the bushing 10. A support block 18 is fixedly connected to the outside of the motor 13. A feeding assembly is provided above the support block 18. The feeding assembly includes a feeding box 17, which is arranged in a "<" shape. A support rod 16 is fixedly connected to the outside of the feeding box 17. There are four sets of support rods 16 arranged in a rectangular array. One end of the support rod 16 away from the feeding box 17 is fixedly connected to the top of the support block 18. A control panel 14 is fixedly connected to the side of the support block 18 away from the connecting plate 12. The control panel 14 is connected to the motor 13.

[0025] The rotating structure of the support shaft 9 ensures that the pressing plate 6 can be tilted on one side, preventing the telescopic rod 4 from detaching from the positioning hole 8 due to the same position at both ends. When pressing the pressing plate 6, the sliding sleeve 15 can slide outside the positioning block 3, allowing the sliding sleeve 15 to press the pressing plate 6. This makes it easier to control whether the telescopic rod 4 detaches from the positioning hole 8 of the screen 2. The control panel 14 can control the rotation efficiency of the motor 13 on one side of the support block 18, and the bushing 10 can rotate inside the support plate 11 to ensure the rotation effect of the rotating tube 1. The support rod 16 supports the feed box 17 and ensures that the sand is added to the screen 2 along the feed box 17. This achieves stable control of the rotation of the rotating tube 1 and the screen 2, and the effect of screening the sand. It solves the problem that the single spring 7 pushing the pressing plate 6 can easily cause the telescopic rod 4 to be not firmly fixed to the screen 2 inside the positioning hole 8, and improves the stability of the fixation between the rotating tube 1 and the screen 2.

[0026] Working principle: When sand screening is required, sand is added into the screen 2 along the position of motor 13. Motor 13 is then started, causing the connecting plate 12 to rotate, which in turn rotates the rotating tube 1. To ensure synchronous rotation of the screen 2 and the rotating tube 1, spring 7 pushes the pressing plate 6, causing the rotating shaft 5 to move towards the positioning block 3. This tilts the pressing plate 6, allowing it to push the telescopic rod 4 into the positioning hole 8, thus connecting the rotating tube 1 and the screen 2. This ensures that the screen 2 rotates synchronously with the rotating tube 1. When different particle sizes need to be screened, pressing the pressing plate 6 compresses the spring 7, causing the other end of the pressing plate 6 to lift. This allows the pressing plate 6 to move the rotating shaft 5 and the telescopic rod 4, disengaging the telescopic rod 4 from the positioning hole 8 of the screen 2. The screen 2 can then be removed. After removal, a screen 2 of the required specifications can be inserted. Releasing the pressing plate 6 allows the spring 7 to push the rotating shaft 5 and the telescopic rod 4 to slide along the positioning hole 8, thus fixing the rotating tube 1 and the screen 2 in place again. This achieves rapid... The improved screen replacement mechanism for screen 2 solves the problems of slow and difficult disassembly caused by the existing bolt-connected replacement method. The rotating structure of the support shaft 9 ensures that the pressing plate 6 can be tilted to one side, preventing the telescopic rod 4 from detaching from the positioning hole 8 due to unequal positions at both ends. When pressing the pressing plate 6, the sliding sleeve 15 can slide outside the positioning block 3, pressing the pressing plate 6. This allows for easier control over whether the telescopic rod 4 detaches from the positioning hole 8 in the screen 2. The control panel 14 can control the rotation efficiency of the motor 13 on one side of the support block 18, and the bushing 10 can rotate inside the support plate 11 to ensure the rotation effect of the rotating tube 1. The support rod 16 supports the feed box 17 and ensures that the sand is added into the screen 2 along the feed box 17. This achieves stable control of the rotation of the rotating tube 1 and the screen 2, and the effect of screening the sand. It solves the problem that the single spring 7 pushes the pressing plate 6 and the telescopic rod 4 is not firmly fixed to the screen 2 inside the positioning hole 8, and improves the stability of the fixation between the rotating tube 1 and the screen 2.

[0027] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A sand screening device for construction work, comprising a rotating tube (1), characterized in that; One end of the rotating tube (1) is fixedly connected to a connecting plate (12). A motor (13) is provided on the side of the connecting plate (12) away from the rotating tube (1). The motor (13) is fixed at the center position on the side of the connecting plate (12) away from the rotating tube (1). A screen (2) is slidably connected inside the rotating tube (1). A positioning hole (8) is provided through the outside of the rotating tube (1) and the screen (2) near the connecting plate (12). There are four sets of positioning holes (8) arranged in a circular array inside the rotating tube (1) and the screen (2). A telescopic rod (4) is slidably connected inside the positioning hole (8). A rotating shaft (5) is rotatably connected inside the telescopic rod (4) away from the positioning hole (8). Pressing plates (6) are fixedly connected to both ends of the rotating shaft (5). A pushing component is provided on the side of the pressing plate (6) near the telescopic rod (4).

2. A sand screening device for construction work as claimed in claim 1 wherein, The pushing component includes a positioning block (3), which is fixedly connected to the outside of the rotating tube (1). The telescopic rod (4) is slidably connected to the inside of the positioning block (3). A spring (7) is fixedly connected to the side of the pressing plate (6) near the positioning block (3) away from the telescopic rod (4). The end of the spring (7) away from the pressing plate (6) is fixedly connected to the inside of the positioning block (3) in an inclined manner.

3. A sand screening device for construction work as claimed in claim 2 wherein, The pressing plate (6) is rotatably connected to a support shaft (9), which is fixedly connected to the inside of the positioning block (3). The positioning block (3) is slidably connected to a sliding sleeve (15).

4. The sand screening device for construction work according to claim 1, wherein A bushing (10) is rotatably connected to the outside of the rotating tube (1) away from the connecting plate (12). A support plate (11) is rotatably connected to the outside of the bushing (10). A support block (18) is fixedly connected to the outside of the motor (13). A feeding assembly is provided above the support block (18).

5. A sand screening device for construction work as claimed in claim 4 wherein, The feeding assembly includes a feeding box (17), which is arranged in the shape of "<". A support rod (16) is fixedly connected to the outside of the feeding box (17), and there are four sets of support rods (16) arranged in a rectangular array.

6. The sand screening device for construction engineering according to claim 5, characterized in that, The end of the support rod (16) away from the feed box (17) is fixedly connected to the top of the support block (18). The side of the support block (18) away from the connecting plate (12) is fixedly connected to the control panel (14). The control panel (14) is connected to the motor (13).

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