Gravel classification screening device for engineering construction
By designing a device including screening box, fixing frame, sealed door, tie rod, lifting rack, lifting block, threaded rod and collection box, the problem of difficulty in uniform collection during sand and gravel screening in the prior art is solved, efficient export and collection of sand and gravel is achieved, and work efficiency is improved.
Patent Information
- Application Number
- CN202421421183.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-06-20
AI Technical Summary
During the screening of existing sand and gravel grading screening devices, it is difficult to conveniently collect sand and gravel derived from multiple screens, which makes it difficult and troublesome for staff to collect, affecting subsequent screening work.
A device including a screening box, fixing frame, sealing door, tie rod, lifting rack, lifting block, threaded rod and collection box is designed. By manually rotating the threaded rod, the lifting block is driven up, and the pulling rod and sealing door are pulled open, realizing the unified export and collection of sand and gravel.
The device can easily export and collect the sand and gravel on the two screens into the collection box, improving the work efficiency of the staff and simplifying the sand and gravel screening process.
Smart Images
Figure CN222766726U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of engineering construction, in particular to a sand and gravel grading and screening device used for engineering construction. Background Art
[0002] The utility model with the existing authorization announcement number CN214638193U discloses a sand and gravel grading and screening device for engineering construction, including a body, a feed port is provided on the top of the body, water inlet pipes are provided on both sides of the outer surface of the body, and the output end of the water inlet pipe is connected to a spray mechanism, the inner cavity of the body is respectively provided with a first screen and a second screen, a vibration motor is provided in the middle of the first screen and the second screen, and the first screen and the second screen are fixedly connected with sleeves at both ends, the sleeve is slidably connected to a sliding guide column, the top of the sliding guide column is fixedly connected with a slider, the slider is slidably connected with a slide groove, a drain outlet is provided at one end of the bottom side of the body, and an inspection door is provided on the rear side of the body.
[0003] Although the above technical scheme can suppress the dust generated when the machine is working by the atomizing nozzle in the spray mechanism, and can clean the body cavity and the screen before and after the equipment is working by the water spray hole to improve the screening quality, and the sewage can be treated and filtered by the drain port at the bottom of the body cavity, but the above technical scheme requires that when the screening device screens sand and gravel, the sand and gravel with larger size on the surfaces of the two screens need to be discharged. Since the device itself is not convenient for uniformly collecting the sand and gravel discharged from multiple screens, it is more laborious and troublesome for the staff to collect the sand and gravel, which is easy to affect the subsequent screening work. Therefore, those skilled in the art provide a sand and gravel grading and screening device for engineering construction to solve the problems raised in the above background technology. Utility Model Content
[0004] In view of this, it is necessary to provide a sand and gravel grading and screening device for engineering construction to solve the problem that the device itself is inconvenient to uniformly collect the sand and gravel exported from multiple screens, which makes it more laborious and troublesome for workers to collect sand and gravel.
[0005] According to one aspect of the utility model, a sand and gravel grading and screening device for engineering construction is provided, comprising: a screening box, a fixed frame is fixedly connected to the front side of the screening box, two sealing doors are slidably connected to the inner wall of the screening box, the two sealing doors are fixedly connected to a pull rod on the side away from each other, each of the pull rods is fixedly connected to a lifting frame on the front side, and the two lifting frames are fixedly connected to a lifting block on the side close to each other, the outer surface of the lifting block is slidably connected to the inner wall of the fixed frame, the inner wall of the fixed frame is threadedly connected to a threaded rod, the outer surface of the threaded rod is threadedly connected to the inner wall of the lifting block, the left side of the screening box is fixedly connected to a first limit frame, the right side of the screening box is fixedly connected to a second limit frame, and a collecting box is arranged below the screening box.
[0006] According to some embodiments, four supporting legs are fixedly connected to the bottom surface of the screening box, and a base is fixedly connected to the bottom surface of each supporting leg.
[0007] According to some embodiments, a sealing cover is slidably connected to the inner wall of the screening box, and a handle is fixedly connected to the upper surface of the sealing cover.
[0008] According to some embodiments, the upper surface and the bottom surface of each pull rod are fixedly connected to a reinforcement block, and the side surfaces of each group of reinforcement blocks that are close to each other are fixedly connected to the outer surface of the lifting frame.
[0009] According to some embodiments, four groups of springs are fixedly connected to the inner wall of the screening box, wherein two groups of springs have their ends close to each other fixedly connected to the first screen, and the other two groups of springs have their ends close to each other fixedly connected to the second screen.
[0010] According to some embodiments, a first vibration motor is fixedly mounted on an inner wall of the first screen, and a second vibration motor is fixedly mounted on an inner wall of the second screen.
[0011] According to some embodiments, a bearing is fixedly connected to the bottom end of the threaded rod, and a bottom surface of the bearing is fixedly connected to an inner bottom wall of the fixed frame.
[0012] According to some embodiments, the outer surface of the collection box is slidably connected to a limiting frame, and the upper surface of the limiting frame is fixedly connected to the bottom surface of the screening box.
[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0014] By providing a fixed frame, a first limit frame, a second limit frame, a sealed door, a collection box, a threaded rod, a lifting block, a lifting frame and a pull rod, under the action of the threaded rod, when the staff manually rotates the threaded rod, the lifting block on the surface of the threaded rod can be driven to rise, and the rising of the lifting block can pull the lifting frame and the pull rod to rise, and under the action of the two pull rods, the two sealed doors can be pulled open, so that the sand and gravel on the first screen and the second screen can be exported, and the sand and gravel can be respectively transferred to the collection box through the first limit frame and the second limit frame for collection, so that the sand and gravel on the surfaces of the two screens can be conveniently exported and collected uniformly, thereby improving the work efficiency of the staff. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without paying creative work.
[0016] Figure 1 A schematic diagram of the three-dimensional structure of a screening box of a sand and gravel grading and screening device for engineering construction provided by the utility model;
[0017] Figure 2 A right-side sectional stereoscopic structural diagram of a fixed frame of a sand and gravel grading and screening device for engineering construction provided by the utility model;
[0018] Figure 3 A schematic diagram of a cutaway three-dimensional structure of a screening box of a sand and gravel grading and screening device for engineering construction provided by the utility model;
[0019] Figure 4 The utility model provides a schematic diagram of a three-dimensional structure of a first screen mesh of a sand and gravel grading and screening device for engineering construction.
[0020] In the figure: 1. screening box; 2. fixing frame; 3. first limiting frame; 4. collecting box; 5. supporting leg; 6. base; 7. sealing cover; 8. handle; 9. second limiting frame; 10. sealing door; 11. pull rod; 12. lifting frame; 13. lifting block; 14. threaded rod; 15. bearing; 16. first screen; 17. second screen; 18. spring; 19. limiting frame; 20. first vibration motor; 21. reinforcement block; 22. second vibration motor. DETAILED DESCRIPTION
[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0022] See also Figures 1 to 4 The utility model provides a sand and gravel grading and screening device for engineering construction, including a screening box 1, a fixed frame 2 is fixedly connected to the front of the screening box 1, two sealing doors 10 are slidably connected to the inner wall of the screening box 1, and the side surfaces of the two sealing doors 10 that are away from each other are fixedly connected to a pull rod 11, and the front of each pull rod 11 is fixedly connected to a lifting frame 12, and the side surfaces of the two lifting frames 12 that are close to each other are commonly fixedly connected to a lifting block 13, the outer surface of the lifting block 13 is slidably connected to the inner wall of the fixed frame 2, and a threaded rod 14 is threadedly connected to the inner wall of the fixed frame 2, and the outer surface of the threaded rod 14 is threadedly connected to the inner wall of the lifting block 13, the left side of the screening box 1 is fixedly connected to a first limiting frame 3, and the right side of the screening box 1 is fixedly connected to a second limiting frame 9, and a collecting box 4 is arranged below the screening box 1.
[0023] By providing the collecting box 4, the sand and gravel on the surfaces of the two screens can be quickly collected, thereby achieving the purpose of unified collection.
[0024] Furthermore, four supporting legs 5 are fixedly connected to the bottom surface of the screening box 1, and the bottom surface of each supporting leg 5 is fixedly connected to a base 6. By arranging the supporting legs 5 and the base 6, a good supporting effect can be provided for the entire device to avoid positional displacement during use.
[0025] Furthermore, a sealing cover 7 is slidably connected to the inner wall of the screening box 1, and a handle 8 is fixedly connected to the upper surface of the sealing cover 7. By providing the sealing cover 7 and the handle 8, the screening box 1 can be opened easily through the sealing cover 7, so that sand and gravel can be screened quickly.
[0026] Furthermore, the upper surface and the bottom surface of each pull rod 11 are fixedly connected with a reinforcement block 21, and the side surfaces of each group of reinforcement blocks 21 that are close to each other are fixedly connected to the outer surface of the lifting frame 12. Through the reinforcement blocks 21, the connection effect between the lifting frame 12 and the pull rod 11 can be further improved, so that it can work stably.
[0027] Furthermore, four groups of springs 18 are fixedly connected to the inner wall of the screening box 1, wherein two groups of springs 18 have their ends close to each other fixedly connected to the first screen 16, and another two groups of springs 18 have their ends close to each other fixedly connected to the second screen 17. By arranging the springs 18, the first screen 16 and the second screen 17, the first screen 16 and the second screen 17 can be easily vibrated under the action of the springs 18, thereby improving the flexibility of the first screen 16 and the second screen 17 during vibration.
[0028] Furthermore, a first vibration motor 20 is fixedly installed on the inner wall of the first screen 16, and a second vibration motor 22 is fixedly installed on the inner wall of the second screen 17. By arranging the first vibration motor 20 and the second vibration motor 22, the centrifugal force generated by the high-speed rotation of the shaft and the eccentric block can be used to obtain an exciting force, thereby quickly driving the first screen 16 and the second screen 17 to vibrate.
[0029] Furthermore, a bearing 15 is fixedly connected to the bottom end of the threaded rod 14, and the bottom surface of the bearing 15 is fixedly connected to the inner bottom wall of the fixed frame 2. By providing the bearing 15, the stability of the threaded rod 14 during rotation can be further improved, so that it can rotate more stably and smoothly.
[0030] Furthermore, the outer surface of the collecting box 4 is slidably connected to the limiting frame 19, and the upper surface of the limiting frame 19 is fixedly connected to the bottom surface of the screening box 1. By setting the limiting frame 19, the collecting box 4 can be well fixed so that it can work stably.
[0031] Working principle: When in use, the staff first transports the device to a suitable use position, and then turns on the power of the first vibration motor 20 and the second vibration motor 22, so that they can be in a stable power-on state to avoid power failure during use. Then the staff takes out the sealing cover 7 through the handle 8, and turns on the first vibration motor 20 and the second vibration motor 22 at the same time. After the first vibration motor 20 and the second vibration motor 22 are turned on, the centrifugal force generated by the high-speed rotation of the shaft and the eccentric block can be used to obtain an exciting force, thereby driving the first screen 16 and the second screen 17 to vibrate. Then the staff can introduce the sand and gravel to be screened into the screening box 1, and the first screen 16 and the second screen 17 vibrate. The movement can enable sand and gravel to be screened. When there are many large sand and gravel on the surfaces of the first sieve 16 and the second sieve 17, the staff manually rotates the threaded rod 14. When the staff manually rotates the threaded rod 14, the lifting block 13 on the surface of the threaded rod 14 can be driven to rise. The rising of the lifting block 13 can pull the lifting frame 12 and the pull rod 11 to rise. Under the action of the two pull rods 11, the two sealed doors 10 can be pulled open, so that the sand and gravel on the first sieve 16 and the second sieve 17 can be exported. The sand and gravel can be respectively transferred to the collection box 4 through the first limit frame 3 and the second limit frame 9 for collection, so that the sand and gravel on the surfaces of the two sieves can be conveniently exported and collected uniformly.
[0032] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present utility model, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.
Claims
1. A sand and gravel grading and screening device for engineering construction, characterized in that: The invention comprises a screening box (1), wherein the front face of the screening box (1) is fixedly connected to a fixed frame (2), the inner wall of the screening box (1) is slidably connected to two sealing doors (10), the side faces of the two sealing doors (10) that are away from each other are fixedly connected to a pull rod (11), the front face of each pull rod (11) is fixedly connected to a lifting frame (12), the side faces of the two lifting frames (12) that are close to each other are fixedly connected to a lifting block (13), the outer surface of the lifting block (13) is slidably connected to the inner wall of the fixing frame (2), the inner wall of the fixing frame (2) is threadedly connected to a threaded rod (14), the outer surface of the threaded rod (14) is threadedly connected to the inner wall of the lifting block (13), the left side face of the screening box (1) is fixedly connected to a first limiting frame (3), the right side face of the screening box (1) is fixedly connected to a second limiting frame (9), and a collecting box (4) is arranged below the screening box (1).
2. A sand and gravel grading and screening device for engineering construction according to claim 1, characterized in that: Four supporting legs (5) are fixedly connected to the bottom surface of the screening box (1), and a base (6) is fixedly connected to the bottom surface of each supporting leg (5).
3. The sand and gravel grading and screening device for engineering construction according to claim 1, characterized in that: A sealing cover (7) is slidably connected to the inner wall of the screening box (1), and a handle (8) is fixedly connected to the upper surface of the sealing cover (7).
4. The sand and gravel grading and screening device for engineering construction according to claim 1, characterized in that: The upper surface and the bottom surface of each pull rod (11) are fixedly connected to a reinforcement block (21), and the side surfaces of each group of reinforcement blocks (21) that are close to each other are fixedly connected to the outer surface of the lifting frame (12).
5. The sand and gravel grading and screening device for engineering construction according to claim 1, characterized in that: Four groups of springs (18) are fixedly connected to the inner wall of the screening box (1), wherein two groups of springs (18) have their ends close to each other fixedly connected to a first screen (16), and the other two groups of springs (18) have their ends close to each other fixedly connected to a second screen (17).
6. A sand and gravel classification and screening device for engineering construction according to claim 5, characterized in that: A first vibration motor (20) is fixedly mounted on the inner wall of the first screen (16), and a second vibration motor (22) is fixedly mounted on the inner wall of the second screen (17).
7. The sand and gravel classification and screening device for engineering construction according to claim 1, characterized in that: The bottom end of the threaded rod (14) is fixedly connected to a bearing (15), and the bottom surface of the bearing (15) is fixedly connected to the inner bottom wall of the fixed frame (2).
8. The sand and gravel grading and screening device for engineering construction according to claim 1, characterized in that: The outer surface of the collection box (4) is slidably connected to a limiting frame (19), and the upper surface of the limiting frame (19) is fixedly connected to the bottom surface of the screening box (1).