Sand screening machine for water conservancy project

By introducing fixing and limiting components into the sand screening machine for water conservancy projects, the problem of cumbersome replacement caused by foreign objects getting stuck in the screen is solved, the screen can be quickly disassembled and assembled, the impact of vibration is reduced, and the efficiency of the sand screening machine is improved.

CN223996591UActive Publication Date: 2026-03-17JINHUA WATER RESOURCES & HYDROPOWER SURVEY & DESIGN INST CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-09
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

Existing sand screening machines used in water conservancy projects tend to trap foreign objects in their screens after prolonged use, making screen replacement cumbersome and affecting replacement efficiency.

Method used

By employing fixed and limiting components, and through the design of a return spring and a limiting plate, the screening components can be quickly disassembled and fixed. Combined with a shock-absorbing component, the impact of vibration is reduced, and the replacement efficiency is improved.

Benefits of technology

It enables quick screen replacement, reduces the impact of vibration on other equipment, and improves the efficiency and convenience of sand screening machine.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a sand screening machine for hydraulic engineering, which belongs to the technical field of hydraulic engineering and is characterized in that the sand screening machine comprises a base, the top of the base is fixedly connected with a damping component, the top of the base is fixedly connected with a vibration component, and the top of the damping component is fixedly connected with a fixing component. The vibration assembly is fixed through the damping assembly, vibration generated during work of the vibration assembly is prevented from influencing other equipment, then the effect of driving the screening assembly to work is achieved through the vibration assembly, the limiting assembly is fixed through the fixing assembly, and meanwhile the screening assembly is rapidly disassembled and assembled through cooperation with the limiting assembly. And finally, the sand screening effect is achieved through the screening assembly, a fixing frame is fixed through a damping assembly, then the moving range of a fixing rod is limited through the fixing frame, the screening assembly fixing effect is achieved through the fixing rod, and finally the surface of the fixing rod is sleeved with a reset spring, so that the reset effect of the fixing rod is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering technology, and in particular to a sand screening machine for water conservancy engineering. Background Technology

[0002] Water conservancy projects are engineering projects built to control and regulate surface water and groundwater in nature to achieve the purpose of eliminating harm and promoting benefits. Water is an essential and precious resource for human production and life, but its natural state does not fully meet human needs. Because water conservancy projects are related to the surrounding environment, water supply and people's livelihood, the requirements for sand and gravel in the concrete used in water conservancy projects are also higher. For common mixtures, sand screening devices are needed to screen the sand before it can be used normally.

[0003] Chinese utility model patent CN211330141U discloses a sand screening machine for water conservancy engineering construction, relating to the field of water conservancy engineering. This sand screening machine includes a screening box with symmetrical feed holes on its upper surface. Symmetrical connecting plates are fixedly connected to the inner top wall of each feed hole. Symmetrical load-bearing plates are fixedly connected to the inner side wall of each screening box. The upper surface of each load-bearing plate is fixedly connected to the bottom surface of each connecting plate. A first through hole is provided on the side of each connecting plate that is far from each other. Symmetrical inclined plates are fixedly connected to the inner side wall of each screening box. The side of each inclined plate that is far from the inner side wall of the screening box is fixedly connected to the side of each connecting plate that is far from each other. A second through hole is provided on the bottom surface of each inclined plate. This sand screening machine for water conservancy engineering construction effectively solves the problem of manual screening, increases the speed of sand screening, and thus meets the sand requirements of construction projects.

[0004] Currently, sand screening machines for water conservancy projects on the market mainly use vibrating screens to screen collected sand and select sand that meets the requirements. However, after a long period of use, foreign objects may get stuck in the screens, requiring the screens to be replaced. However, most existing screens are connected by bolts, making the replacement process cumbersome and reducing replacement efficiency, which affects daily use. Utility Model Content

[0005] This utility model provides a sand screening machine for water conservancy projects, aiming to solve the problem that existing sand screening machines for water conservancy projects mainly use vibrating screens to screen collected sand and select sand that meets the requirements. However, after a long period of use, foreign objects may get stuck in the screens of the current sand screening machines, which requires the screens to be replaced. However, most existing screens are connected by bolts, making the replacement process cumbersome and reducing replacement efficiency, which affects daily use.

[0006] This utility model is implemented as follows: a sand screening machine for water conservancy projects includes a base, a shock-absorbing component fixedly connected to the top of the base, a vibration component fixedly connected to the top of the base, a fixing component fixedly connected to the top of the shock-absorbing component, a limiting component fixedly connected inside the fixing component, and a screening component snapped into the inside of the limiting component.

[0007] The fixing component includes a fixing frame, a fixing rod, and a return spring. The fixing frame is fixedly connected to the top of the shock absorption component, the fixing rod is movably connected inside the fixing frame, and the return spring is sleeved inside the fixing rod. The side of the return spring closest to the fixing frame is fixedly connected to the fixing frame.

[0008] In order to achieve the effect of fixing the screening component with the fixing component, as a preferred embodiment of the sand screening machine for water conservancy projects of this utility model, the limiting component includes a connecting plate, a limiting plate and a limiting column. The connecting plate is fixedly connected between opposite sides of the fixing frame, the limiting plate is fixedly connected between opposite sides of the connecting plate, and the limiting column is fixedly connected to the surface of the connecting plate and the limiting plate respectively.

[0009] In order to achieve the effect of sieving sand, as a preferred embodiment of the sand sieving machine for water conservancy projects according to this utility model, the sieving component includes a connecting block, a screen frame and a screen mesh. The connecting block is movably connected inside the limiting plate, the screen frame is fixedly connected to the bottom of the connecting block, and the screen mesh is fixedly connected inside the screen frame.

[0010] To avoid vibrations during operation affecting other equipment, in a preferred embodiment of this utility model of a sand screening machine for water conservancy engineering, the vibration damping assembly includes a vibration damping block, a telescopic rod, and a vibration damping spring. The vibration damping block is fixedly connected to the top of the base, and the side of the vibration damping block closest to the fixed frame is fixedly connected to the fixed frame. The telescopic rod is fixedly connected between the opposite sides of the vibration damping block, and the vibration damping spring is sleeved on the surface of the telescopic rod. The side of the vibration damping spring closest to the vibration damping block is fixedly connected to the vibration damping block.

[0011] In order to achieve the effect of driving the screening component to work, as a preferred embodiment of the sand screening machine for water conservancy projects of this utility model, the vibration component includes a support frame, a vibration motor and a vibrating element. The support frame is fixedly connected to the front side of the base, the vibration motor is fixedly connected to the top of the support frame, and the vibrating element is fixedly connected inside the fixed frame. The side of the vibrating element near the output end of the vibration motor is fixedly connected to the output end of the vibration motor.

[0012] In order to facilitate the fixing of the screening components by the fixing rod, as a preferred embodiment of the sand screening machine for water conservancy projects of this utility model, the fixing frame has an internal movable hole for use with the fixing rod, the connecting plate has an internal mating hole for use with the fixing hole, and the connecting block has an internal fixing hole for use with the mating hole.

[0013] In order to prevent the screening components from moving arbitrarily, as a preferred embodiment of the sand screening machine for water conservancy projects of this utility model, the limiting plate has a limiting groove inside that cooperates with the connecting block. The connecting block is movably connected inside the limiting groove. A connecting column is fixedly connected to the top of the screen frame, and the side of the connecting column near the connecting block is fixedly connected to the connecting block.

[0014] In order to facilitate the discharge of sand after screening, as a preferred embodiment of the sand screening machine for water conservancy projects of this utility model, a fixing plate is fixedly connected to the rear side of the limiting column, a discharge plate is fixedly connected to the front side of the limiting column, and a guide plate is fixedly connected to the top of the discharge plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This sand screening machine for water conservancy projects first uses a base to fix a shock-absorbing component, which in turn fixes a vibrating component to prevent its vibration from affecting other equipment. Then, the vibrating component drives the screening component to work, and a fixing component fixes a limiting component. This fixing component, in conjunction with the limiting component, enables quick assembly and disassembly of the screening component. Finally, the screening component achieves the effect of screening sand. The shock-absorbing component fixes a fixed frame, which then limits the range of motion of the fixing rod. The fixing rod then fixes the screening component. Finally, a return spring is sleeved on the surface of the fixing rod to achieve the return effect of the fixing rod. Attached Figure Description

[0017] Figure 1 This is an overall structural diagram of the sand screening machine for water conservancy projects according to this utility model;

[0018] Figure 2 This is a schematic diagram of the shock absorption component in this utility model;

[0019] Figure 3 This is a schematic diagram of the vibration component in this utility model;

[0020] Figure 4 This is a schematic diagram of the fixing component in this utility model;

[0021] Figure 5 This is a schematic diagram of the limiting component in this utility model;

[0022] Figure 6This is a schematic diagram of the screening component in this utility model.

[0023] In the diagram: 1. Base; 2. Shock-absorbing assembly; 201. Shock-absorbing block; 202. Telescopic rod; 203. Shock-absorbing spring; 3. Vibration assembly; 301. Support frame; 302. Vibration motor; 303. Vibrating component; 4. Fixing assembly; 401. Fixing frame; 402. Fixing rod; 403. Return spring; 5. Limiting assembly; 501. Connecting plate; 502. Limiting plate; 503. Limiting column; 6. Screening assembly; 601. Connecting block; 602. Screen frame; 603. Screen mesh; 7. Movable hole; 8. Mating hole; 9. Fixing hole; 10. Limiting groove; 11. Connecting column; 12. Fixing plate; 13. Discharge plate; 14. Guide plate. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, in the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] Please see Figure 1-6 The present invention provides a technical solution: a sand screening machine for water conservancy projects, including a base 1, a shock-absorbing component 2 fixedly connected to the top of the base 1, a vibration component 3 fixedly connected to the top of the base 1, a fixing component 4 fixedly connected to the top of the shock-absorbing component 2, a limiting component 5 fixedly connected inside the fixing component 4, and a screening component 6 snapped into the inside of the limiting component 5.

[0027] The fixing component 4 includes a fixing frame 401, a fixing rod 402 and a return spring 403. The fixing frame 401 is fixedly connected to the top of the shock absorption component 2. The fixing rod 402 is movably connected inside the fixing frame 401. The return spring 403 is sleeved inside the fixing rod 402. The side of the return spring 403 closest to the fixing frame 401 is fixedly connected to the fixing frame 401.

[0028] In this embodiment: First, the shock-absorbing component 2 is fixed by the base 1, and the vibration component 3 is fixed by the shock-absorbing component 2 to prevent the vibration generated during its operation from affecting other equipment. Then, the vibration component 3 drives the screening component 6 to work, and the limiting component 5 is fixed by the fixing component 4. At the same time, the limiting component 5 cooperates with the screening component 6 to achieve quick assembly and disassembly. Finally, the screening component 6 achieves the effect of screening sand. The fixing frame 401 is fixed by the shock-absorbing component 2, and then the range of motion of the fixing rod 402 is limited by the fixing frame 401. The screening component 6 is fixed by the fixing rod 402. Finally, the reset spring 403 is sleeved on the surface of the fixing rod 402 to achieve the reset effect of the fixing rod 402.

[0029] As a technical optimization of this utility model, the limiting component 5 includes a connecting plate 501, a limiting plate 502, and a limiting post 503. The connecting plate 501 is fixedly connected between opposite sides of the fixing frame 401, the limiting plate 502 is fixedly connected between opposite sides of the connecting plate 501, and the limiting post 503 is fixedly connected to the surfaces of the connecting plate 501 and the limiting plate 502 respectively.

[0030] In this embodiment: the connecting plate 501 is fixed by the fixing bracket 401, and then the limiting plate 502 is fixed by the connecting plate 501. The limiting plates 502 cooperate with each other to achieve the effect of limiting the working position of the screening component 6. Finally, the limiting column 503 is fixed by the limiting plate 502, and the limiting column 503 cooperates with the limiting plate 502 to prevent the screening component 6 from leaving the working position.

[0031] As a technical optimization of this utility model, the screening component 6 includes a connecting block 601, a screen frame 602 and a screen 603. The connecting block 601 is movably connected to the inside of the limiting plate 502, the screen frame 602 is fixedly connected to the bottom of the connecting block 601, and the screen 603 is fixedly connected to the inside of the screen frame 602.

[0032] In this embodiment: the working position of the connecting block 601 is restricted by the limiting plate 502, then the screen frame 602 is fixed by the connecting block 601, and the screen mesh 603 is fixed by the screen frame 602. Finally, the screen mesh 603 is used to achieve the effect of sieving sand.

[0033] As a technical optimization of this utility model, the shock absorption component 2 includes a shock absorption block 201, a telescopic rod 202, and a shock absorption spring 203. The shock absorption block 201 is fixedly connected to the top of the base 1. The side of the shock absorption block 201 closest to the fixing frame 401 is fixedly connected to the fixing frame 401. The telescopic rod 202 is fixedly connected between the opposite sides of the shock absorption block 201. The shock absorption spring 203 is sleeved on the surface of the telescopic rod 202. The side of the shock absorption spring 203 closest to the shock absorption block 201 is fixedly connected to the shock absorption block 201.

[0034] In this embodiment: the shock absorber 201 is fixed by the base 1, and then the telescopic rod 202 is fixed by the shock absorber 201 cooperating with each other. The shock absorber spring 203 is fixed by the shock absorber 201, and finally the shock absorber spring 203 and the telescopic rod 202 cooperate to achieve the effect of absorbing vibration.

[0035] As a technical optimization of this utility model, the vibration component 3 includes a support frame 301, a vibration motor 302, and a vibration element 303. The support frame 301 is fixedly connected to the front side of the base 1, the vibration motor 302 is fixedly connected to the top of the support frame 301, and the vibration element 303 is fixedly connected to the inside of the fixed frame 401. The side of the vibration element 303 near the output end of the vibration motor 302 is fixedly connected to the output end of the vibration motor 302.

[0036] In this embodiment: the support frame 301 is fixed by the base 1, the vibration motor 302 is fixed by the support frame 301, the vibration element 303 is fixed by the fixing frame 401, and finally the output end of the vibration motor 302 is fixedly connected to the vibration element 303, thereby realizing the vibration effect of the vibration element 303.

[0037] As a technical optimization of this utility model, the fixed frame 401 has an movable hole 7 inside that cooperates with the fixed rod 402, the connecting plate 501 has a mating hole 8 inside that cooperates with the fixed hole 9, and the connecting block 601 has a fixed hole 9 inside that cooperates with the mating hole 8.

[0038] In this embodiment: the movable hole 7 inside the fixing bracket 401 cooperates with the fixing rod 402, thereby facilitating the movement of the fixing rod 402. Then, the mating hole 8 inside the connecting plate 501 facilitates the passage of the fixing rod 402. Finally, the fixing hole 9 inside the connecting block 601 cooperates with the fixing rod 402, thereby facilitating the fixing rod 402 to fix the connecting block 601.

[0039] As a technical optimization of this utility model, the limiting plate 502 has a limiting groove 10 inside that works with the connecting block 601. The connecting block 601 is movably connected inside the limiting groove 10. The top of the screen frame 602 is fixedly connected to a connecting column 11. The side of the connecting column 11 closest to the connecting block 601 is fixedly connected to the connecting block 601.

[0040] In this embodiment: the limiting groove 10 inside the limiting plate 502 is used to prevent the connecting block 601 from moving. Then, the connecting column 11 is fixed by the screen frame 602, and the connecting column 11 is used to facilitate the connecting block 601 to drive the screen frame 602.

[0041] As a technical optimization of this utility model, a fixing plate 12 is fixedly connected to the rear side of the limiting post 503, a discharge plate 13 is fixedly connected to the front side of the limiting post 503, and a guide plate 14 is fixedly connected to the top of the discharge plate 13.

[0042] In this embodiment: the fixing plate 12 is fixed by the limiting post 503, and the fixing plate 12 prevents the sand from leaving the working position. The discharge plate 13 is fixed by the limiting post 503, and the guide plate 14 is fixed by the discharge plate 13. The guide plate 14 and the discharge plate 13 cooperate to guide the sand.

[0043] Working principle: First, the vibrating motor 302 is started by an external power supply, which drives the vibrating element 303 to work, thereby generating vibration. Sand can then be put in, and the sand accumulates on top of the screen 603, where it is screened by the vibrating screen 603. Fine sand particles fall through the screen 603 naturally and can then be transported by an external conveying device. Large impurities such as stones mixed in with the sand are intercepted on top of the screen 603 and moved by the vibration generated by the vibrating element 303, passing through the discharge plate 13 and guide plate. 14. Discharge it. When the screen 603 needs to be replaced after working for a long time, stop the vibration motor 302 and pull the fixing rod 402 out of the connecting block 601. At this time, the connecting block 601 can move in the limiting groove 10 opened in the limiting plate 502, so that the connecting block 601 can be pulled out from the limiting groove 10. Take out the screen frame 602 and the screen 603. Then, the new screen 603 can be snapped into the limiting groove 10 through the connecting block 601. After alignment, the fixing rod 402 is reset by the return spring 403, thereby fixing the connecting block 601 and completing the quick fixing of the screen 603.

[0044] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hydraulic engineering sand screening machine comprising a base (1), characterised in that: The top of the base (1) is fixedly connected with a damping assembly (2), the top of the base (1) is fixedly connected with a vibration assembly (3), the top of the damping assembly (2) is fixedly connected with a fixing assembly (4), the inside of the fixing assembly (4) is fixedly connected with a limiting assembly (5), and the inside of the limiting assembly (5) is clamped with a screening assembly (6). The fixing assembly (4) comprises a fixing frame (401), a fixing rod (402) and a reset spring (403), the fixing frame (401) is fixedly connected at the top of the damping assembly (2), the fixing rod (402) is movably connected in the inside of the fixing frame (401), and the reset spring (403) is sleeved in the inside of the fixing rod (402), and one side of the reset spring (403) close to the fixing frame (401) is fixedly connected with the fixing frame (401).

2. A sand screening machine for hydraulic engineering according to claim 1, characterized in that: The limiting assembly (5) comprises a connecting plate (501), a limiting plate (502) and a limiting column (503), the connecting plate (501) is fixedly connected between the opposite sides of the fixing frame (401), the limiting plate (502) is fixedly connected between the opposite sides of the connecting plate (501), and the limiting column (503) is fixedly connected to the surfaces of the connecting plate (501) and the limiting plate (502) respectively.

3. A sand screening machine for hydraulic engineering according to claim 2, characterized in that: The screening assembly (6) comprises a connecting block (601), a screen frame (602) and a screen mesh (603), the connecting block (601) is movably connected in the inside of the limiting plate (502), the screen frame (602) is fixedly connected to the bottom of the connecting block (601), and the screen mesh (603) is fixedly connected in the inside of the screen frame (602).

4. The sand screening machine for hydraulic engineering according to claim 1, characterized in that: The damping assembly (2) comprises a damping block (201), a telescopic rod (202) and a damping spring (203), the damping block (201) is fixedly connected to the top of the base (1), one side of the damping block (201) close to the fixing frame (401) is fixedly connected with the fixing frame (401), the telescopic rod (202) is fixedly connected between the opposite sides of the damping block (201), the damping spring (203) is sleeved on the surface of the telescopic rod (202), and one side of the damping spring (203) close to the damping block (201) is fixedly connected with the damping block (201).

5. A sand screening machine for hydraulic engineering according to claim 1, characterized in that: The vibration assembly (3) comprises a support frame (301), a vibration motor (302) and a vibration piece (303), the support frame (301) is fixedly connected to the front side of the base (1), the vibration motor (302) is fixedly connected to the top of the support frame (301), the vibration piece (303) is fixedly connected in the inside of the fixing frame (401), and one side of the vibration piece (303) close to the output end of the vibration motor (302) is fixedly connected with the output end of the vibration motor (302).

6. A sand screening machine for hydraulic engineering according to claim 3, characterized in that: An active hole (7) is arranged in the inside of the fixing frame (401) and matched with the fixing rod (402), a matching hole (8) is arranged in the inside of the connecting plate (501) and matched with the fixing hole (9), and a fixing hole (9) is arranged in the inside of the connecting block (601) and matched with the matching hole (8).

7. A sand screening machine for hydraulic engineering according to claim 3, characterized in that: The inside of the limiting plate (502) is provided with a limiting groove (10) matched with the connecting block (601), the connecting block (601) is movably connected in the inside of the limiting groove (10), the top of the screen frame (602) is fixedly connected with a connecting column (11), and the side, close to the connecting block (601), of the connecting column (11) is fixedly connected with the connecting block (601).

8. A sand screening machine for hydraulic engineering according to claim 2, characterized in that: The rear side of the limiting column (503) is fixedly connected with a fixed plate (12), the front side of the limiting column (503) is fixedly connected with a discharging plate (13), and the top of the discharging plate (13) is fixedly connected with a guide plate (14).

Citation Information

Patent Citations

  • Sand screening machine for hydraulic engineering construction

    CN211330141U