Sand screening machine for construction engineering

Abstract

The utility model relates to a sand screening machine for building engineering, including the box, the inside of box is provided with multistage screening structure, multistage screening structure includes protection box, the outer fixed surface of box is installed with protection box, the back of protection box is fixedly installed with first motor, the output fixedly installed with lug of first motor, the inside movable joint of box has the movable rod. This sand screening machine for building engineering, the raw material is sent into the feed pipe, and the raw material is uniformly sent into the inside of box after being preliminarily stirred through the inside structure setting of feed pipe, then through the setting of multistage screening structure, sandstone is screened twice, improves the sand screening efficiency and delicacy of device, greatly improves the use efficiency and practical effect of device, then through the setting of auxiliary structure, it is convenient to heat and dry the raw material after screening, improves the practicality in the actual use process of device.

Description

Technical Field

[0001] This utility model relates to the field of sand screening machine technology, specifically a sand screening machine for construction engineering. Background Technology

[0002] Construction projects, as the cornerstone of urban development, encompass the entire process from foundation treatment to main structure construction. Their construction efficiency and material quality directly affect project safety and progress. In the sand and gravel aggregate processing stage, sand screening machines are key equipment. Through vibration or rotating screens, they accurately separate coarse and fine sand particles, effectively removing impurities and ensuring that the sand used in concrete has a uniform gradation and meets the mud content standards. This provides construction projects with high-quality raw materials that meet the standards. Together, these two aspects ensure the stability and durability of the building structure.

[0003] However, existing sand screening machines can only screen sand and gravel in a single pass, which is extremely inefficient and the screening quality cannot be guaranteed. Furthermore, the screen plates of existing sand screening machines cannot be replaced, and they can only screen sand and gravel of specific sizes, which limits their practical use. In addition, the functions of existing sand screening machines are relatively simple. Therefore, a sand screening machine for construction engineering is proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a sand screening machine for construction engineering, which has the advantages of multi-stage screening of sand and gravel, easy replacement of screen plates, and easy drying of raw materials, thus solving the problem that the structure of existing devices needs to be optimized.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sand screening machine for construction engineering, comprising a box body, a box door provided on the front of the box body, a feed pipe fixedly installed on the top of the box body, a multi-stage screening structure provided inside the box body, and an auxiliary structure provided outside the box body;

[0006] The multi-stage screening structure includes a protective box, with a protective box fixedly installed on the outer surface of the box. A first motor is fixedly installed on the back of the protective box, and a protrusion is fixedly installed on the output end of the first motor. A movable rod is movably connected inside the box, and a connecting plate is fixedly installed on the outer surface of the movable rod. A spring body is fixedly installed on the outer surface of the connecting plate, and a plug-in seat is fixedly installed on the outer surface of the connecting plate. A first screen plate is movably connected inside the plug-in seat, and a second screen plate is movably connected inside the plug-in seat. A flow guide block is fixedly installed inside the box.

[0007] Furthermore, the auxiliary structure includes a feeding pipe, which is fixedly installed on the top of the box. A spiral feeding shaft is rotatably connected inside the feeding pipe. A second motor is fixedly installed on the top of the box. An equipment box is fixedly installed on the right side of the box. An electric heating rod is fixedly installed on the inner top wall of the equipment box. A fan is fixedly installed on the inner left wall of the equipment box. A diverter pipe is fixedly installed at the output end of the fan. An air outlet hood is fixedly installed on the inner right wall of the box.

[0008] Furthermore, a control panel is provided on the front of the box door, two feed pipes are fixedly installed on the top of the box, and protective boxes are fixedly installed on both the left and right sides of the box. The first motor is fixedly installed on the back of one of the protective boxes, and the output end of the first motor extends into the interior of one of the protective boxes and is fixedly connected to the interior of the protrusion.

[0009] Furthermore, there are eight movable rods, which are movably connected to the left and right sides of the box body respectively. Four connecting plates are fixedly installed on the left and right sides of the eight movable rods respectively, and two of the connecting plates are fixedly connected to the box body by eight spring bodies.

[0010] Furthermore, four plug-in sockets are fixedly installed on opposite sides of the two connecting plates, and the interiors of the four plug-in sockets are movably connected to the first sieve plate and the second sieve plate, respectively. Guide blocks are fixedly installed on the inner left and inner right walls of the box, and movable grooves adapted to the first sieve plate and the second sieve plate are opened on opposite sides of the two guide blocks. Cabinet doors are hinged to the front of the two guide blocks.

[0011] Furthermore, both feed pipes are fitted to the conveying pipe, and each feed pipe and the conveying pipe has a feed port at the connection point. The bottom of the conveying pipe has a discharge port, and the top of the spiral feeding shaft is fixedly connected to the output end of the second motor.

[0012] Furthermore, an air inlet pipe is fixedly installed at the air inlet end of the fan, and two air outlet hoods are fixedly installed on the inner right wall of the housing. The top two ends of the diversion pipe are respectively fixedly connected to the right sides of the two air outlet hoods.

[0013] Beneficial effects

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] This sand screening machine for construction projects feeds raw materials into the feed pipe, and after initial mixing through the conveying pipe and its internal structure, the raw materials are evenly fed into the interior of the box. Then, through the multi-stage screening structure, the sand and gravel are screened twice, which improves the screening efficiency and fineness of the device, greatly improving the efficiency and practical effect of the device. Then, through the setting of auxiliary structure, it is easy to heat and dry the screened raw materials, which improves the practicality of the device in actual use. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a partial three-dimensional structural diagram of the present invention;

[0018] Figure 3 This is a front sectional view of the present invention.

[0019] Figure 4 This is a partial top view of the structure of this utility model.

[0020] In the diagram: 1. Box body; 2. Box door; 3. Feed pipe; 4. Multi-stage screening structure; 401. Protective box; 402. First motor; 403. Protrusion; 404. Movable rod; 405. Connecting plate; 406. Spring body; 407. Plug-in seat; 408. First screen plate; 409. Second screen plate; 410. Guide block; 5. Auxiliary structure; 501. Feed pipe; 502. Screw feed shaft; 503. Second motor; 504. Equipment box; 505. Electric heating rod; 506. Fan; 507. Diverter pipe; 508. Air outlet hood. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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 Figure 1-4 A sand screening machine for construction engineering includes a box body 1, a box door 2 on the front of the box body 1, a feed pipe 3 fixedly installed on the top of the box body 1, a multi-stage screening structure 4 inside the box body 1, and an auxiliary structure 5 outside the box body 1.

[0023] The multi-stage screening structure 4 includes a protective box 401. The protective box 401 is fixedly installed on the outer surface of the box body 1. A first motor 402 is fixedly installed on the back of the protective box 401. A protrusion 403 is fixedly installed at the output end of the first motor 402. A movable rod 404 is movably connected inside the box body 1. A connecting plate 405 is fixedly installed on the outer surface of the movable rod 404. A spring body 406 is fixedly installed on the outer surface of the connecting plate 405. A plug-in seat 407 is fixedly installed on the outer surface of the connecting plate 405. A first screen plate 408 is movably connected inside the plug-in seat 407. A second screen plate 409 is movably connected inside the plug-in seat 407. A guide block 410 is fixedly installed inside the box body 1.

[0024] Furthermore, the auxiliary structure 5 includes a conveying pipe 501, which is fixedly installed on the top of the housing 1. A spiral feeding shaft 502 is rotatably connected inside the conveying pipe 501. A second motor 503 is fixedly installed on the top of the housing 1. An equipment box 504 is fixedly installed on the right side of the housing 1. An electric heating rod 505 is fixedly installed on the inner top wall of the equipment box 504. A fan 506 is fixedly installed on the inner left wall of the equipment box 504. A diverter pipe 507 is fixedly installed at the output end of the fan 506. An air outlet hood 508 is fixedly installed on the inner right wall of the housing 1.

[0025] Specifically, such as Figure 2 and Figure 3 As shown, opening the box door 2 reveals the interior of the box body 1. Then, opening the cabinet doors of the two guide blocks 410 reveals their interiors. Then, according to the required specifications for sand screening, the first screen plate 408 and the second screen plate 409 are inserted into the corresponding insertion seats 407 in sequence to complete the installation of the two screen plates. Then, close the cabinet door and box door 2. Then, the raw material to be screened is fed into the interior of the two feed pipes 3. Then, turning on the second motor 503 will drive the spiral feeding shaft 502 to rotate. After the raw material enters the conveying pipe 501, it is initially stirred by the rotating spiral feeding shaft 502 to avoid the phenomenon of raw material clumping. Finally, the raw material will enter the interior of the box body 1.

[0026] Specifically, such as Figure 3 As shown, turning on the electric heating rod 505 generates hot air inside the equipment box 504. Then, turning on the fan 506 extracts the hot air, which is then sent through the diversion pipe 507 into the air outlet 508 inside the box 1, and then into the box 1 to carry out the drying process of the raw materials.

[0027] Specifically, such as Figure 3As shown, when the raw material enters the housing 1 through the conveying pipe 501, turning on the first motor 402 will drive the protrusion 403 to rotate. Then, the rotation of the protrusion 403 will squeeze the connecting plate 405 on one side, causing the connecting plate 405 to move to the right, thereby driving the first screen plate 408 and the second screen plate 409 to move to the right. During this process, the spring body 406 will also be squeezed. Then, when the protrusion 403 separates from the left connecting plate 405, it will drive the two screen plates to move to the left under the action of the spring body 406. This process is repeated, and the left and right vibrations screen the raw material.

[0028] Specifically, such as Figure 1 As shown, the control panel is electrically connected to all the electrical equipment within the device. The control panel sends control commands to each component via control signal lines. These signal lines can be analog signal lines, such as 4-20mA current signals, digital signal lines, such as RS485 communication interfaces, or simple switch signal lines. The control signals sent by the control panel are transmitted to the control units of each component via the signal lines. The start and stop operations of each component can be realized through the buttons or touch screen interface on the control panel. After receiving a start command, the controller will send corresponding control signals to each component to start them. When a stop command is received, a stop signal is sent to stop each component from working. The operating parameters of each component can be set on the control panel interface. These parameter settings will be converted into corresponding control signals and sent to the control units of each component, thereby realizing precise adjustment of the operating status of the components. The control panel has the function of monitoring the operating status of each component and can display the operating parameters and status information of each component in real time.

[0029] In summary, this sand screening machine for construction projects feeds raw materials into the feed pipe 3, and through the conveying pipe 501 and its internal structure, the raw materials are initially mixed and then evenly fed into the interior of the box 1. Then, through the multi-stage screening structure 4, the sand and gravel are screened twice, which improves the screening efficiency and fineness of the device, greatly improving the efficiency and practical effect of the device. Then, through the auxiliary structure 5, it is convenient to heat and dry the screened raw materials, which improves the practicality of the device in actual use.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sand screening machine for construction engineering, comprising a housing (1), characterized in that: The front of the box (1) is provided with a box door (2), the top of the box (1) is fixedly installed with a feed pipe (3), the inside of the box (1) is provided with a multi-stage screening structure (4), and the outside of the box (1) is provided with an auxiliary structure (5). The multi-stage screening structure (4) includes a protective box (401). The protective box (401) is fixedly installed on the outer surface of the box body (1). A first motor (402) is fixedly installed on the back of the protective box (401). A protrusion (403) is fixedly installed at the output end of the first motor (402). A movable rod (404) is movably connected inside the box body (1). A connecting plate (405) is fixedly installed on the outer surface of the movable rod (404). A spring body (406) is fixedly installed on the outer surface of the connecting plate (405). A plug-in seat (407) is fixedly installed on the outer surface of the connecting plate (405). A first sieve plate (408) is movably connected inside the plug-in seat (407). A second sieve plate (409) is movably connected inside the plug-in seat (407). A guide block (410) is fixedly installed inside the box body (1).

2. The sand screening machine for construction engineering according to claim 1, characterized in that: The auxiliary structure (5) includes a feeding pipe (501). The feeding pipe (501) is fixedly installed on the top of the box (1). The feeding pipe (501) is rotatably connected to a spiral feeding shaft (502). The second motor (503) is fixedly installed on the top of the box (1). The equipment box (504) is fixedly installed on the right side of the box (1). An electric heating rod (505) is fixedly installed on the inner top wall of the equipment box (504). A fan (506) is fixedly installed on the inner left wall of the equipment box (504). A diverter pipe (507) is fixedly installed at the output end of the fan (506). An air outlet hood (508) is fixedly installed on the inner right wall of the box (1).

3. A sand screening machine for construction engineering according to claim 1, characterized in that: The front of the box door (2) is provided with a control panel. Two feed pipes (3) are fixedly installed on the top of the box body (1). Protective boxes (401) are fixedly installed on both the left and right sides of the box body (1). The first motor (402) is fixedly installed on the back of one of the protective boxes (401). The output end of the first motor (402) extends into the interior of one of the protective boxes (401) and is fixedly connected to the interior of the protrusion (403).

4. A sand screening machine for construction engineering according to claim 1, characterized in that: The number of movable rods (404) is eight. The eight movable rods (404) are respectively movably connected to the left and right sides of the box (1). The left and right sides of the eight movable rods (404) are respectively fixedly installed with four connecting plates (405). Two of the connecting plates (405) are fixedly connected to the box (1) by eight spring bodies (406).

5. A sand screening machine for construction engineering according to claim 1, characterized in that: Four plug-in sockets (407) are fixedly installed on opposite sides of the two connecting plates (405). The interiors of the four plug-in sockets (407) are movably connected to the first sieve plate (408) and the second sieve plate (409). The inner left and inner right walls of the box body (1) are fixedly installed with guide blocks (410). The opposite sides of the two guide blocks (410) are provided with movable grooves that are adapted to the first sieve plate (408) and the second sieve plate (409). The front of the two guide blocks (410) is hinged with cabinet doors.

6. A sand screening machine for construction engineering according to claim 2, characterized in that: Both feed pipes (3) are attached to the conveying pipe (501), and each feed pipe (3) and the conveying pipe (501) is provided with a feed port. The bottom of the conveying pipe (501) is provided with a discharge port. The top of the spiral feeding shaft (502) is fixedly connected to the output end of the second motor (503).

7. A sand screening machine for construction engineering according to claim 2, characterized in that: The fan (506) has an air inlet pipe fixedly installed at its air inlet end, and two air outlet hoods (508) are fixedly installed on the inner right wall of the housing (1). The top two ends of the diversion pipe (507) are fixedly connected to the right sides of the two air outlet hoods (508) respectively.

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