A sand and gravel screening device
By designing a sand and gravel screening device with a multi-layer screening network and dust collection system, the problems of low sand and gravel screening efficiency and inconvenient dust treatment in the existing technology are solved, and the effect of efficient screening and dust vacuuming is achieved.
Patent Information
- Application Number
- CN202420099406.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-16
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-01-16
AI Technical Summary
The existing sand and gravel filtration method at construction sites is inefficient, and the sand and gravel screening device is prone to dust after screening, which cannot be effectively vacuumed.
A sand and gravel screening device is designed, adopting a multi-layer screening mesh structure and dust collection system. The pressure plate and sliding plate are driven by the cam to realize multiple screening of sand and gravel, and dust is vacuumed through the fan and dust collection mesh bag.
It improves the efficiency of sand and gravel screening, reduces the generation of dust, and realizes effective dust absorption, improving the safety and hygiene of the working environment.
Smart Images
Figure CN222710125U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sand and gravel screening, in particular to a sand and gravel screening device. Background Art
[0002] Sand and gravel refers to a loose mixture of sand and crushed stone. In geology, mineral or rock particles with a particle size of 0.074 to 2 mm are called sand, and particles with a particle size greater than 2 mm are called gravel or angular gravel (the difference between the two lies in the different degrees of roundness. For details, see the entries conglomerate and sandstone). If the crushed stone in the sand and gravel is mostly gravel, it is called sand and gravel. In daily life, some people also call sandstone sand and gravel. The existing sand and gravel filtration at the construction site is to manually throw sand upward through a single filter to achieve the purpose of screening sand and gravel. This sand and gravel screening method is too inefficient, and the existing sand and gravel screening device is prone to generate dust when screening sand and gravel, and the generated dust cannot be vacuumed. Utility Model Content
[0003] The utility model aims to provide a sand and gravel screening device to solve the problem that the existing sand and gravel filtering at the construction site proposed in the above background technology is to manually throw sand upwards through a single filter screen to achieve the purpose of screening sand and gravel, and this sand and gravel screening method is too inefficient, and the existing sand and gravel screening device is prone to generate dust when screening sand and gravel, and the generated dust cannot be vacuumed.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sand and gravel screening device, comprising a screening box, a No. 1 screening mesh plate is slidably connected inside the screening box, a No. 2 screening mesh plate is slidably connected inside the screening box, a No. 1 connecting plate is fixedly connected between the No. 1 screening mesh plate and the No. 2 screening mesh plate, a No. 2 connecting plate is fixedly connected between the No. 1 screening mesh plate and the No. 2 screening mesh plate, the outer sides of the No. 1 connecting plate and the No. 2 connecting plate are both slidably connected to a connecting box, the outer sides of the No. 2 connecting plate and the No. 1 connecting plate are symmetrically fixedly connected with two limiting slides, the limiting slide is slidably connected to the connecting box, a spring is provided at the bottom of the limiting slide, one end of the spring is fixedly connected to the connecting box, and the screening box The two sides are respectively fixedly connected with fixed boxes which cooperate with the No. 1 screening mesh plate and the No. 2 screening mesh plate, the bottom of the fixed box is installed with a collection box by bolts, the interior of the fixed box is fixedly connected with a dust collecting pipe, the top of the No. 1 screening mesh plate is fixedly connected with the No. 2 support frame, the top of the No. 2 support frame is fixedly connected with a sliding plate, the sliding plate is slidably connected to the screening box, the top of the sliding plate is fixedly connected with a pressing plate, the outer side of the pressing plate is slidably connected to the No. 1 support frame, the No. 1 support frame is fixedly connected to the screening box, the interior of the No. 1 support frame is rotatably connected with a rotating rod, the outer side of the rotating rod is fixedly connected with a cam which cooperates with the pressing plate, a motor is provided at one side of the No. 1 support frame, and the output end of the motor is fixedly connected to the rotating rod.
[0005] As a preferred solution of the utility model: a feed pipe is fixedly connected to the top of the screening box, and a discharge pipe is fixedly connected to the bottom of the screening box.
[0006] As a preferred solution of the utility model: a collecting box is fixedly connected to the top of the fixed box, one end of the dust collecting pipe is fixedly connected to the collecting box, and a dust collecting net bag cooperating with the dust collecting pipe is installed inside the collecting box by bolts.
[0007] As a preferred solution of the utility model: a closing plate is installed on the top of the collection box by bolts.
[0008] As a preferred solution of the utility model: a fan is provided on the top of the fixed box, an output end of the fan is fixedly connected with an air outlet duct, and an input end of the fan is connected to the collection box through an air duct.
[0009] As a preferred solution of the present invention: a control panel is provided on one side of the screening box, and the motor and the fan are electrically connected to the control panel.
[0010] Compared with the prior art, the utility model has the following beneficial effects: by adding a cam, the utility model realizes that the pressure plate is pushed when the cam rotates, and the sliding plate and the No. 2 support frame are driven downward by the pressure plate, and the No. 2 support frame drives the No. 1 screening mesh plate and the No. 2 screening mesh plate at the bottom to move downward, so as to screen the sand and gravel, and by adding a dust collecting mesh bag, the dust in the fixed box is collected and processed by the dust collecting pipe when the fan is performing dust suction, and the dust is collected and processed by the dust collecting mesh bag at one end. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 This is a schematic diagram of the internal structure of the utility model;
[0012] Figure 2 For this utility model Figure 1 Enlarged view of point A in the middle;
[0013] Figure 3 It is a side view of the cam of the utility model.
[0014] In the figure: 1. Screening box; 2. Sliding plate; 3. Pressing plate; 4. Support frame No. 1; 5. Cam; 6. Rotating rod; 7. Motor; 8. Support frame No. 2; 9. Screening mesh plate No. 1; 10. Control panel; 11. Air outlet pipe; 12. Screening mesh plate No. 2; 13. Connecting plate No. 1; 14. Connecting box; 15. Limiting slide plate; 16. Spring; 17. Discharge pipe; 18. Fixed box; 19. Dust collecting pipe; 20. Collecting box; 21. Dust collecting net bag; 22. Closing plate; 23. Fan; 24. Collecting box; 25. Connecting plate No. 2. DETAILED DESCRIPTION
[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0016] See also Figures 1 to 3 The utility model provides a technical solution: a sand and gravel screening device, comprising a screening box 1, a No. 1 screening mesh plate 9 is slidably connected inside the screening box 1, a No. 2 screening mesh plate 12 is slidably connected inside the screening box 1, a No. 1 connecting plate 13 is fixedly connected between the No. 1 screening mesh plate 9 and the No. 2 screening mesh plate 12, a No. 2 connecting plate 25 is fixedly connected between the No. 1 screening mesh plate 9 and the No. 2 screening mesh plate 12, and the outer sides of the No. 1 connecting plate 13 and the No. 2 connecting plate 25 are both slidably connected with connecting plates. The outer sides of the connection box 14, the second connection plate 25 and the first connection plate 13 are symmetrically fixedly connected with two limit slides 15, the limit slide 15 is slidably connected to the connection box 14, and a spring 16 is provided at the bottom of the limit slide 15, one end of the spring 16 is fixedly connected to the connection box 14, and the two sides of the screening box 1 are respectively fixedly connected with the first screening mesh plate 9 and the second screening mesh plate 12. The bottom of the fixed box 18 is installed with a collection box 24 by bolts, and the interior of the fixed box 18 is fixedly connected to the first screening mesh plate 9 and the second screening mesh plate 12. A dust collecting pipe 19 is fixedly connected, a No. 2 support frame 8 is fixedly connected to the top of the No. 1 screening mesh plate 9, a sliding plate 2 is fixedly connected to the top of the No. 2 support frame 8, the sliding plate 2 is slidably connected to the screening box 1, a pressing plate 3 is fixedly connected to the top of the sliding plate 2, a No. 1 support frame 4 is slidably connected to the outside of the pressing plate 3, the No. 1 support frame 4 is fixedly connected to the screening box 1, a rotating rod 6 is rotatably connected to the inside of the No. 1 support frame 4, and a cam 5 cooperating with the pressing plate 3 is fixedly connected to the outside of the rotating rod 6, and the No. 1 support frame 4 is fixedly connected to the outside of the rotating rod 6. A motor 7 is provided on one side of the frame 4, and the output end of the motor 7 is fixedly connected to the rotating rod 6. The output end of the motor 7 drives the rotating rod 6 to rotate. When the rotating rod 6 rotates, it drives the cam 5 to rotate. The cam 5 pushes the pressure plate 3, the sliding plate 2 and the second support frame 8 to move downward. The second support frame 8 drives the No. 1 screening mesh plate 9, the No. 1 connecting plate 13, the No. 2 connecting plate 25 and the No. 2 screening mesh plate 12 to move downward, and the sand and gravel are graded and screened by the No. 1 screening mesh plate 9 and the No. 2 screening mesh plate 12.
[0017] Among them, a feed pipe is fixedly connected to the top of the screening box 1, and a discharge pipe 17 is fixedly connected to the bottom of the screening box 1. The screening box 1 performs sand and gravel feeding processing through the feed pipe, and performs discharge processing on the screened sand and gravel through the discharge pipe 17.
[0018] Among them, a collecting box 20 is fixedly connected to the top of the fixed box 18, one end of the dust collecting pipe 19 is fixedly connected to the collecting box 20, and a dust collecting net bag 21 that cooperates with the dust collecting pipe 19 is installed inside the collecting box 20 by bolts. The dust in the fixed box 18 is extracted through the dust collecting pipe 19, and the dust is collected and processed by the dust collecting net bag 21 at one end of the dust collecting pipe 19.
[0019] A closing plate 22 is installed on the top of the collecting box 20 by means of bolts. The closing plate 22 is opened to perform maintenance on the dust collecting net bag 21 in the collecting box 20 and to process the filtered impurities.
[0020] Among them, a fan 23 is provided on the top of the fixed box 18, and the output end of the fan 23 is fixedly connected to the air outlet pipe 11. The input end of the fan 23 is connected to the collection box 20 through the air duct, and the inhaled air is discharged through the air outlet pipe 11.
[0021] Among them, a control panel 10 is provided on one side of the screening box 1, and the motor 7 and the fan 23 are electrically connected to the control panel 10. The motor 7 and the fan 23 are centrally controlled through the control panel 10, which improves the safety and work efficiency of the device.
[0022] Specifically, when in use, the sand and gravel to be screened are poured into the screening box 1, the sand and gravel are screened once through the No. 1 screening mesh plate 9, and then fall on the No. 2 screening mesh plate 12 for secondary screening, the motor 7 is started before screening, the output end of the motor 7 drives the rotating rod 6 to rotate, and the rotating rod 6 drives the cam 5 to rotate when it rotates, the cam 5 pushes the pressure plate 3, the sliding plate 2 and the No. 2 support frame 8 to move downward, the No. 2 support frame 8 drives the No. 1 screening mesh plate 9, the No. 1 connecting plate 13, the No. 2 connecting plate 25 and the No. 2 screening mesh plate 12 to move downward, and the No. 1 connecting plate 13 and the No. 2 connecting plate 25 are moved upward. When moving downward, the limit slide plate 15 is driven to move, and the limit slide plate 15 presses the spring 16. When the cam 5 continues to rotate, the spring 16 is reset and drives the limit slide plate 15 to reset, driving the No. 1 connecting plate 13 and the No. 2 connecting plate 25 to move upward and reset, and the moving position of the No. 1 screening mesh plate 9 and the No. 2 screening mesh plate 12 is reset. The screened sand and gravel enter the fixed box 18 and are collected by the collecting box 24. The fan 23 is started, and the dust in the fixed box 18 is extracted through the dust collecting pipe 19, and the dust is collected and processed by the dust collecting net bag 21 at one end of the dust collecting pipe 19.
[0023] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0024] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.
[0025] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.
[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A sand and gravel screening device, comprising a screening box (1), characterized in that: The screening box (1) is internally slidably connected to a No. 1 screening mesh plate (9), the screening box (1) is internally slidably connected to a No. 2 screening mesh plate (12), a No. 1 connecting plate (13) is fixedly connected between the No. 1 screening mesh plate (9) and the No. 2 screening mesh plate (12), a No. 2 connecting plate (25) is fixedly connected between the No. 1 screening mesh plate (9) and the No. 2 screening mesh plate (12), and the outer sides of the No. 1 connecting plate (13) and the No. 2 connecting plate (25) are The second connecting plate (25) and the first connecting plate (13) are both slidably connected to a connecting box (14); the outer sides of the second connecting plate (25) and the first connecting plate (13) are both symmetrically fixedly connected with two limiting slides (15); the limiting slides (15) are slidably connected to the connecting box (14); a spring (16) is provided at the bottom of the limiting slides (15); one end of the spring (16) is fixedly connected to the connecting box (14); and the two sides of the screening box (1) are respectively fixedly connected to the first screening mesh plate (9) and the second screening mesh plate (13). The second screening mesh plate (12) is matched with a fixed box (18), the bottom of which is installed with a collection box (24) by bolts, the interior of the fixed box (18) is fixedly connected with a dust collecting pipe (19), the top of the first screening mesh plate (9) is fixedly connected with a second support frame (8), the top of the second support frame (8) is fixedly connected with a sliding plate (2), the sliding plate (2) is slidably connected to the screening box (1), the top of the sliding plate (2) is fixedly connected with a pressure plate (3), the outer side of the pressure plate (3) is slidably connected with a first support frame (4), the first support frame (4) is fixedly connected with the screening box (1), the interior of the first support frame (4) is rotatably connected with a rotating rod (6), the outer side of the rotating rod (6) is fixedly connected with a cam (5) matched with the pressing plate (3), and one side of the first support frame (4) is provided with a motor (7), the output end of the motor (7) is fixedly connected to the rotating rod (6).
2. A sand and gravel screening device according to claim 1, characterized in that: The top of the screening box (1) is fixedly connected to a feed pipe, and the bottom of the screening box (1) is fixedly connected to a discharge pipe (17).
3. A sand and gravel screening device according to claim 1, characterized in that: The top of the fixed box (18) is fixedly connected to a collecting box (20), one end of the dust collecting pipe (19) is fixedly connected to the collecting box (20), and a dust collecting net bag (21) that cooperates with the dust collecting pipe (19) is installed inside the collecting box (20) by bolts.
4. A sand and gravel screening device according to claim 3, characterized in that: A closing plate (22) is mounted on the top of the collecting box (20) by means of bolts.
5. A sand and gravel screening device according to claim 4, characterized in that: A fan (23) is provided on the top of the fixed box (18); the output end of the fan (23) is fixedly connected to an air outlet pipe (11); and the input end of the fan (23) is connected to the collection box (20) via an air pipe.
6. A sand and gravel screening device according to claim 5, characterized in that: A control panel (10) is provided on one side of the screening box (1), and the motor (7) and the fan (23) are both electrically connected to the control panel (10).