Sand screening device for house building construction

Abstract

The house building construction sand screening device comprises an installation frame, the upper end of the installation frame is fixedly connected with a feeding hopper, adjusting strips fixedly penetrate through the front end and the rear end of the installation frame, sliding plates are arranged in inner cavities of the adjusting strips, and the right ends of the sliding plates are fixedly connected with springs. The right ends of the springs are fixedly connected with the right inner wall of the adjusting strip, sliding rods are arranged at the left ends of the sliding plates, the right ends of the sliding rods sequentially penetrate through the sliding plates and the springs and are fixedly connected with the right inner wall of the adjusting strip, an L-shaped baffle is fixedly connected between the two sliding plates, a screen is arranged at the upper end of the baffle, and a plurality of screws penetrate through the position between the screen and the baffle in a threaded mode. When the sand screening device is used, the screen mesh is made to move left and right through rotation of the cam, sand is screened, when the screen mesh is damaged, the screen mesh can be replaced conveniently and rapidly, and the sand screening device is convenient for workers to use.

Description

Technical Field

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

[0002] During construction at a construction site, sand is an important raw material that can be used to make concrete and other construction materials. However, most of the sand cannot be used directly. It needs to be screened to remove larger stones and impurities, leaving only fine sand to make concrete and other construction materials.

[0003] The specification of Chinese patent CN214347911U discloses a sand screening device for house construction. When in use, the utility model stirs the sand to break up the sand that is compacted together, thereby increasing the sinking flow rate of the sand. The telescopic rod drives the flap to flip and scatters the sunken sand so that it falls evenly on the first screen, thereby improving the screening efficiency.

[0004] However, after long-term use, the surface of the existing sand screening device will be worn due to the collision of stones, and most of the existing screens are directly fixed in the device, which makes it difficult to replace the screen after it is damaged, reduces the screening accuracy, and is inconvenient for staff to use. Utility Model Content

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the utility model is that after long-term use, the screen is easily damaged due to the collision with stones, and most of the screens inside the existing sand screening devices are directly fixed inside the device, and the damaged screen is not easy to replace.

[0006] In order to solve the above problems, the utility model provides a sand screening device for house construction construction, including an installation frame, the upper end of the installation frame is fixedly connected with a feed hopper, the front and rear ends of the installation frame are fixedly penetrated with adjustment strips, the inner cavity of the adjustment strip is provided with a slide plate, the right end of the slide plate is fixedly connected with a spring, the right end of the spring is fixedly connected to the right inner wall of the adjustment strip, the left end of the slide plate is provided with a slide bar, the right end of the slide bar sequentially penetrates the slide plate and the spring and is fixedly connected to the right inner wall of the adjustment strip, an L-shaped baffle is fixedly connected between the two slide plates, a screen is provided at the upper end of the baffle, a plurality of screws are threadedly penetrated between the screen and the baffle, the inner cavity of the adjustment strip is also fixedly connected with a limit strip, a groove is provided on the surface of the limit strip, a T-block is inserted in the groove, and the corresponding ends of the two T-blocks are respectively fixedly connected with the front and rear ends of the screen, the inner cavity of the installation frame is fixedly connected with a fixed plate, an adjusting rod is rotatably penetrated in the middle of the upper end of the fixed plate, a cam is fixedly connected to the lower end of the adjusting rod, a motor 2 is fixedly connected to the upper end of the fixed plate, and a pulley group is fixedly provided with the motor 2 and the adjusting rod.

[0007] In the above-mentioned housing construction sand screening device, the internal screen is not welded inside the device, and the screen can be disassembled and assembled according to the use requirements of the staff, so as to facilitate the use of the staff.

[0008] As a further improvement of the present application, the inner cavity of the feed hopper is rotatably connected to two rotating shafts, the outer ring of the rotating shaft is fixedly sleeved with a dispersion roller, the rear end of the rotating shaft is fixedly passed through the feed hopper and is fixedly connected to a gear, the two gears are meshed with each other, the rear end of the feed hopper is fixedly connected to an L-shaped plate, the front end of the L-shaped plate is fixedly connected to motor 1, and motor 1 is fixedly connected to the rear end of one of the gears.

[0009] As a further improvement of the present application, the adjustment bar is inclined to the lower right, the left end of the screen passes through the mounting frame, the left end of the mounting frame is fixedly connected to the protective shell by screws, and the left end of the screen is located inside the protective shell.

[0010] As a further improvement of the present application, the cam is overall in the shape of a water drop, and the outer annular surface of the cam is in contact with the baffle.

[0011] As another improvement of the present application, the dispersion roller is composed of a cylinder and a plurality of round rods, and the plurality of round rods on the two dispersion rollers are arranged alternately.

[0012] As another improvement of the present application, a belt conveyor is fixedly connected to the inner cavity of the mounting frame, and the belt conveyor is located below the screen.

[0013] To sum up, in actual application, starting motor 1 drives the gear to rotate, so that the rotating shaft drives the dispersion roller to rotate, and the sand enters the feed hopper. The round rod on the dispersion roller breaks up the clumped sand, and then the sand falls onto the surface of the screen. Starting motor 2 drives the adjusting rod to rotate, so that the cam rotates, so that the baffle moves to the left, thereby driving the spring to stretch, and the screen makes a left and right circular motion, so that the sand on the surface of the screen shakes, thereby screening the sand. When the screen needs to be replaced, only the protective shell and the screw need to be taken out, and then the screen is pulled out to the left to separate the screen from the limit strip and the baffle, and the screen can be taken out for replacement. The utility model is easy to disassemble and assemble the screen during use, thereby improving the screening accuracy and being convenient for the staff to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the first implementation method of this application;

[0015] Figure 2 This is a schematic diagram of the screen structure of the first embodiment of the present application;

[0016] Figure 3 This is a schematic diagram of the adjustment bar structure of the first embodiment of the present application;

[0017] Figure 4This is a schematic diagram of the cam structure of the first embodiment of the present application;

[0018] Figure 5 This is a left view of the structure of the first embodiment of the present application;

[0019] Figure 6 This is a schematic diagram of the dispersion roller structure of the first embodiment of the present application;

[0020] Figure 7 This is a schematic structural diagram of the first embodiment of the present application.

[0021] Description of the numbers in the figure:

[0022] 1 mounting frame, 2 feed hopper, 3 rotating shaft, 4 dispersion roller, 5 gear, 6 motor 1, 7 adjustment bar, 8 slide plate, 9 spring, 10 slide bar, 11 baffle, 12 screen, 13 screw, 14 fixing plate, 15 adjustment rod, 16 cam, 17 motor 2, 18 pulley set, 19 limit bar, 20 T-block, 21 belt conveyor. DETAILED DESCRIPTION

[0023] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0024] The first implementation method:

[0025] Figure 1 , Figure 2 and Figure 3 The figure shows: a sand screening device for house construction, including a mounting frame 1, the front and rear ends of the mounting frame 1 are fixedly penetrated by an adjusting strip 7, the inner cavity of the adjusting strip 7 is provided with a slide plate 8, the right end of the slide plate 8 is fixedly connected with a spring 9, the extension and contraction of the spring 9 facilitates the movement and reset of the screen 12, the right end of the spring 9 is fixedly connected to the right inner wall of the adjusting strip 7, the left end of the slide plate 8 is provided with a slide bar 10, the right end of the slide bar 10 penetrates the slide plate 8 and the spring 9 in sequence and is fixedly connected to the right inner wall of the adjusting strip 7, an L-shaped baffle plate 11 is fixedly connected between the two slide plates 8, the baffle plate 11 can support and fix the screen 12, the upper end of the baffle plate 11 is provided with a screen 12, and there are multiple threads penetrating between the screen 12 and the baffle plate 11. A screw rod 13 is provided, and multiple screw rods 13 fix the screen 12 and the baffle 11 to facilitate disassembly and assembly. The inner cavity of the adjustment strip 7 is also fixedly connected to the limit strip 19. A groove is provided on the surface of the limit strip 19. A T-block 20 is inserted in the groove. The corresponding ends of the two T-blocks 20 are respectively fixedly connected to the front and rear ends of the screen 12. The T-block 20 and the limit strip 19 can limit the screen 12 to effectively prevent the screen 12 from tilting during movement. The adjustment strip 7 tilts to the lower right, and the left end of the screen 12 passes through the mounting frame 1. The left end of the mounting frame 1 is fixedly connected to a protective shell by screws. The left end of the screen 12 is located in the protective shell, and the protective shell can protect the screen 12.

[0026] Figure 4 It is shown that: a fixing plate 14 is fixedly connected to the inner cavity of the mounting frame 1, an adjusting rod 15 is rotatably penetrated through the middle of the upper end of the fixing plate 14, a cam 16 is fixedly connected to the lower end of the adjusting rod 15, and the rotation of the cam 16 facilitates the movement of the screen 12, and a motor 2 17 is fixedly connected to the upper end of the fixing plate 14. Those skilled in the art can select a suitable model of the motor 2 17 according to actual needs, for example: Y2-63M1-2-0.18KW, the motor 2 17 and the adjusting rod 15 are fixedly sleeved with a pulley set 18, and the cam 16 is in a teardrop shape as a whole, and the teardrop-shaped cam 16 can push the screen 12 to the maximum extent while saving materials, and the outer ring surface of the cam 16 is in contact with the baffle 11.

[0027] Figure 5 and Figure 6 It is shown that: a feed hopper 2 is fixedly connected to the upper end of the mounting frame 1, and two rotating shafts 3 are rotatably connected to the inner cavity of the feed hopper 2. A dispersion roller 4 is fixedly sleeved on the outer ring of the rotating shaft 3. The clumped sand can be broken up by the two dispersion rollers 4, so that the sand is not easy to fall onto the screen 12 in piles, but can fall on the surface of the screen 12 relatively evenly, thereby improving the screening efficiency. The rear end of the rotating shaft 3 is fixedly penetrated through the feed hopper 2 and is fixedly connected with a gear 5. The two gears 5 are meshed with each other, so that the two dispersion rollers 4 can rotate towards each other at the same time. The rear end of the feed hopper 2 is fixedly connected with an L-shaped plate, and the front end of the L-shaped plate is fixedly connected with a motor 6. The motor 6 is fixedly connected to the rear end of one of the gears 5. The dispersion roller 4 is composed of a cylinder and a plurality of round rods, and the plurality of round rods on the two dispersion rollers 4 are arranged alternately.

[0028] When in use, start motor 1 6 to drive gear 5 to rotate, so that shaft 3 drives dispersion roller 4 to rotate, and sand enters the inside of feed hopper 2, and the round rod on dispersion roller 4 breaks up the clumped sand, and then the sand falls onto the surface of screen 12, and start motor 2 17 to drive adjusting rod 15 to rotate, so that cam 16 rotates, thereby baffle 11 moves to the left, thereby driving spring 9 to stretch, and screen 12 makes left and right circular motion, so that the sand on the surface of screen 12 shakes, thereby screening the sand, and when screen 12 needs to be replaced, it is only necessary to take out protective shell and screw 13, and then pull out screen 12 to the left, so that screen 12 is separated from limit strip 19 and baffle 11, and then screen 12 can be taken out to replace it, and the utility model is easy to disassemble and assemble screen 12 when in use, thus improving screening accuracy and facilitating use by staff.

[0029] The second implementation method:

[0030] This embodiment is based on the first embodiment, and a belt conveyor 21 is added, and the rest of the parts are consistent with the first embodiment.

[0031] Figure 7It is shown that a belt conveyor 21 is fixedly connected to the inner cavity of the mounting frame 1 , and those skilled in the art can select a suitable type of belt conveyor 21 according to actual needs, for example: WX201, and the belt conveyor 21 is located below the screen 12 .

[0032] When in use, start the motor to reverse, so that the belt on the surface of the belt conveyor 21 rotates counterclockwise. When fine sand passes through the screen 12 and falls onto the surface of the belt conveyor 21, the belt conveyor 21 drives the fine sand to move to the left and be discharged from the mounting frame 1, thereby facilitating the collection of sand after screening.

[0033] In view of current practical needs, the protection scope of the above-mentioned implementation mode adopted in this application is not limited to this. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. A sand screening device for house construction, comprising a mounting frame (1), characterized in that: The upper end of the mounting frame (1) is fixedly connected to a feed hopper (2), and the front and rear ends of the mounting frame (1) are fixedly penetrated by adjustment bars (7), the inner cavity of the adjustment bar (7) is provided with a slide plate (8), the right end of the slide plate (8) is fixedly connected to a spring (9), the right end of the spring (9) is fixedly connected to the right inner wall of the adjustment bar (7), and the left end of the slide plate (8) is provided with a slide bar (10), the right end of the slide bar (10) penetrates the slide plate (8) and the spring (9) in sequence and is fixedly connected to the right inner wall of the adjustment bar (7). The two slide plates (8) are fixedly connected, an L-shaped baffle (11) is fixedly connected between the two slide plates (8), a screen (12) is provided at the upper end of the baffle (11), a plurality of screw rods (13) are threadedly passed through the screen (12) and the baffle (11), the inner cavity of the adjustment bar (7) is also fixedly connected to a limit bar (19), a groove is provided on the surface of the limit bar (19), a T-shaped block (20) is inserted in the groove, and the corresponding ends of the two T-shaped blocks (20) are respectively fixedly connected to the front and rear ends of the screen (12); A fixing plate (14) is fixedly connected to the inner cavity of the mounting frame (1), an adjusting rod (15) is rotatably penetrated through the middle of the upper end of the fixing plate (14), a cam (16) is fixedly connected to the lower end of the adjusting rod (15), a second motor (17) is fixedly connected to the upper end of the fixing plate (14), and a pulley group (18) is fixedly sleeved on the second motor (17) and the adjusting rod (15).

2. A sand screening device for house construction according to claim 1, characterized in that: The inner cavity of the feed hopper (2) is rotatably connected to two rotating shafts (3), the outer ring of the rotating shaft (3) is fixedly sleeved with a dispersion roller (4), the rear end of the rotating shaft (3) is fixedly passed through the feed hopper (2) and is fixedly connected to a gear (5), the two gears (5) are meshed with each other, the rear end of the feed hopper (2) is fixedly connected to an L-shaped plate, the front end of the L-shaped plate is fixedly connected to a motor 1 (6), and the motor 1 (6) is fixedly connected to the rear end of one of the gears (5).

3. A sand screening device for house construction according to claim 1, characterized in that: The adjustment bar (7) is inclined toward the lower right, the left end of the screen (12) passes through the mounting frame (1), the left end of the mounting frame (1) is fixedly connected to a protective shell by screws, and the left end of the screen (12) is located inside the protective shell.

4. A sand screening device for house construction according to claim 1, characterized in that: The cam (16) is in a water drop shape as a whole, and the outer annular surface of the cam (16) is in contact with the baffle (11).

5. A sand screening device for house construction according to claim 2, characterized in that: The dispersion roller (4) is composed of a cylinder and a plurality of round rods, and the plurality of round rods on the two dispersion rollers (4) are arranged in a staggered manner.

6. A sand screening device for house construction according to claim 1, characterized in that: A belt conveyor (21) is fixedly connected to the inner cavity of the mounting frame (1), and the belt conveyor (21) is located below the screen (12).

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