Sand screening device with adjusting structure

Abstract

The utility model belongs to the technical field of constructional engineering, and particularly relates to a sand screening device with an adjusting structure, which comprises a sand screening machine body. The top of the sand screening machine body is fixedly connected with a storage hopper; a support is fixedly connected to the top of the sand screening machine body. The inner wall of the bracket is rotationally connected with a screw rod; the end part of the screw rod is in threaded connection with an adjusting plate, and the adjusting plate is arranged at the top of the sand screening machine body in a sliding manner; the other end of the screw rod is fixedly connected with a rotating handle; a motor is mounted on the side wall of the adjusting plate; a rotatable stirring block is arranged in the middle of the storage hopper in a matched mode, the problem that it is difficult for workers to dredge the storage hopper at the top of the sand screening machine body in the follow-up process due to the fact that the follow-up storage hopper is blocked by materials with the high water content can be solved, and under the action of a slidable adjusting plate, the flexibility of the whole stirring block during work can be improved; the problem that partial blind areas on the inner wall of the storage hopper are difficult to dredge by the adjusting plate is solved.

Description

Technical Field

[0001] This utility model belongs to the field of building engineering technology, specifically a sand screening device with an adjustable structure. Background Technology

[0002] A sand screening machine is a type of sand mining machinery used to separate sand and gravel. It is widely used in the construction and highway industries, and is also suitable for industries such as cement and coal for sand screening. It features simple structure, economy, and ease of operation.

[0003] The sand screening machine mainly imitates the manual method of screening sand using inclined screens. It mainly consists of equipment such as storage hoppers, screens, and belt conveyors. The sand and stones are separated by a screen that can be repeatedly shaken, and then the sand is transported by belt conveyors.

[0004] Through long-term observation, it has been found that when existing sand screening machines screen sand with high moisture content, the material tends to clump together and cause blockage at the feed inlet of the storage hopper. Furthermore, the storage hopper is usually located at the top of the equipment, making it difficult to clear the feed inlet afterward. Therefore, a sand screening device with an adjustable structure is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes a sand screening device with an adjustable structure.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The sand screening device with an adjustable structure of this utility model includes a sand screening machine body; a storage hopper is fixedly connected to the top of the sand screening machine body; a bracket is fixedly connected to the top of the sand screening machine body; a screw is rotatably connected to the inner wall of the bracket; an adjusting plate is threadedly connected to the end of the screw, and the adjusting plate is slidably set on the top of the sand screening machine body; a rotating handle is fixedly connected to the other end of the screw; a motor is installed on the side wall of the adjusting plate; a rotating rod is fixedly connected to the output end of the motor, and the rotating rod is through the middle of the storage hopper; a stirring block is fixedly connected to the end of the rotating rod, and the stirring block is located inside the storage hopper.

[0007] Preferably, two sets of spring rods are fixedly connected to the inner wall of the sand screening machine body; a sliding rod is fixedly connected to the output end of the spring rod, and the sliding rod is slidably arranged in the middle of the sand screening machine body; a top plate is fixedly connected to the end of the sliding rod; a retaining frame is fixedly connected to the top of the top plate; a protrusion matching the shape of the retaining frame is fixedly connected to the middle of the screw; and a limiting plate is fixedly connected to the end of the protrusion.

[0008] Preferably, the end of the adjusting plate is connected to a baffle plate by a torsion spring, and the baffle plate is inclined; a guide groove is fixedly connected to the top of the baffle plate; two sets of connecting parts are fixedly connected to the side wall of the baffle plate; and a counterweight is rotatably connected to the middle of the connecting parts.

[0009] Preferably, the inner wall of the stirring block has an inner cavity; the inner wall of the inner cavity is provided with rolling balls.

[0010] Preferably, an elastic element is fixedly connected to the outer wall of the storage hopper; a connecting shaft is fixedly connected to the end of the elastic element, and the connecting shaft and the rotating rod are rotatably connected.

[0011] Preferably, a gasket is fixedly connected to the middle of the top plate.

[0012] Preferably, a friction cylinder is rotatably connected to the middle of the handle, and the outer wall of the friction cylinder is recessed.

[0013] The beneficial effects of this utility model are:

[0014] This utility model provides a sand screening device with an adjustable structure. By cooperating with a rotatable stirring block set in the middle of the storage hopper, the problem of the subsequent storage hopper being blocked by materials with high water content can be reduced, making it difficult for workers to clear the storage hopper at the top of the sand screening machine. In addition, the sliding adjustment plate can improve the overall flexibility of the stirring block during operation, reducing the problem that some blind spots on the inner wall of the storage hopper are difficult to clear with the adjustment plate.

[0015] This utility model provides a sand screening device with an adjustable structure. By using a polygonal frame and protrusions, the overall positional stability of the screw during operation can be improved, reducing the problem of slight changes in the screw causing the adjusting plate to slide out of position when the filter screen inside the sand screening machine vibrates frequently. Under the action of the spring rod, a counterforce can be provided on the protrusion, further enabling the frame and protrusion to close deeply. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0017] In the attached diagram:

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a three-dimensional sectional view of the structure of this utility model;

[0020] Figure 3 for Figure 2Enlarged view of point A;

[0021] Figure 4 This is a schematic diagram of the screw structure in this utility model;

[0022] Figure 5 This is a schematic diagram of the adjustment plate structure in this utility model.

[0023] Legend:

[0024] 1. Sand screening machine body; 11. Storage hopper; 12. Support frame; 13. Screw; 14. Adjusting plate; 15. Rotary handle; 16. Motor; 17. Rotating rod; 18. Mixing block; 2. Spring rod; 21. Slide rod; 22. Top plate; 23. Frame; 24. Protrusion; 25. Limiting plate; 3. Baffle plate; 31. Guide groove; 32. Connecting piece; 33. Counterweight; 4. Inner cavity; 41. Rolling ball; 5. Elastic element; 51. Connecting shaft; 6. Gasket; 7. Friction cylinder. Detailed Implementation

[0025] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Specific implementation examples are given below.

[0027] like Figure 1-5As shown, a sand screening device with an adjustable structure includes a sand screening machine body 1; a storage hopper 11 is fixedly connected to the top of the sand screening machine body 1; a bracket 12 is fixedly connected to the top of the sand screening machine body 1; a screw 13 is rotatably connected to the inner wall of the bracket 12; an adjusting plate 14 is threadedly connected to the end of the screw 13, and the adjusting plate 14 is slidably disposed on the top of the sand screening machine body 1; a rotating handle 15 is fixedly connected to the other end of the screw 13; a motor 16 is installed on the side wall of the adjusting plate 14; a rotating rod 17 is fixedly connected to the output end of the motor 16, and the rotating rod 17 is disposed through the middle of the storage hopper 11; a stirring block 18 is fixedly connected to the end of the rotating rod 17, and the stirring block 18 is disposed inside the storage hopper 11; during operation, after the operator installs the sand screening machine body 1 in the working area, the operator can start the switch of the sand screening machine body 1, so that the screen and belt in the middle can work normally. Subsequently, the operator can use tools to continuously inject an appropriate amount of material into the middle of the storage hopper 11. When subsequent materials become clogged at the storage hopper 11, the operator can activate the motor 16 switch, causing its output end to synchronously drive the mixing block 18 to rotate on the inner wall of the storage hopper 11, thus clearing the clogged area. When the working position of the mixing block 18 needs to be adjusted, the operator can hold the middle of the handle 15 and rotate it, allowing the adjusting plate 14, which is threaded onto the screw 13, to slide at the top of the sand screening machine body 1, thereby changing the working position of the motor 16 and the mixing block 18. This step, combined with the rotatable mixing block 18 in the middle of the storage hopper 11, can reduce the problem of the storage hopper 11 being clogged by materials with high moisture content, making it difficult for the operator to clear the clogged storage hopper 11 at the top of the sand screening machine body 1. Furthermore, the sliding adjusting plate 14 can improve the overall flexibility of the mixing block 18 during operation, reducing the problem of blind spots on the inner wall of the storage hopper 11 being difficult to clear with the adjusting plate 14.

[0028] like Figure 1-5As shown, two sets of spring rods 2 are fixedly connected to the inner wall of the sand screening machine body 1; a sliding rod 21 is fixedly connected to the output end of the spring rod 2, and the sliding rod 21 is slidably set in the middle of the sand screening machine body 1; a top plate 22 is fixedly connected to the end of the sliding rod 21; a retaining frame 23 is fixedly connected to the top of the top plate 22; a protrusion 24 matching the shape of the retaining frame 23 is fixedly connected to the middle of the screw 13; a limiting plate 25 is fixedly connected to the end of the protrusion 24; during operation, because the top plate 22 is set on the outer wall of the sand screening machine body 1, when the operator needs to rotate the handle 15, the operator's other hand can press the middle of the top plate 22, so that when the top plate 22 moves inward, the retaining frame 23 can gradually completely disengage from the protrusion 24. At this time, the operator can rotate the handle 15 and complete the operation. After adjusting the position of the adjusting plate 14, the supporting force on the top plate 22 is released, and the top plate 22 can be pushed outward again under the action of the two sets of spring rods 2 resetting, until the frame 23 completely overlaps and contacts the inner wall of the protrusion 24 again. The position of the frame 23 is limited by the limiting plate 25. This step, together with the polygonal frame 23 and the protrusion 24, can improve the positional stability of the screw 13 during operation and reduce the problem of the screw 13 moving slightly and causing the adjusting plate 14 to slide out of position when the filter screen inside the sand screening machine body 1 vibrates frequently. Under the action of the spring rod 2, a reverse force can be provided on the protrusion 24, which further allows the frame 23 and the protrusion 24 to be deeply closed.

[0029] like Figure 1-5 As shown, the end of the adjusting plate 14 is connected to a torsion spring with a baffle plate 3, and the baffle plate 3 is inclined; a guide groove 31 is fixedly connected to the top of the baffle plate 3; two sets of connecting parts 32 are fixedly connected to the side wall of the baffle plate 3; a counterweight block 33 is rotatably connected to the middle of the connecting parts 32; during operation, by setting the inclined baffle plate 3 at the end of the adjusting plate 14, when the subsequent workers continuously input materials into the inner wall of the storage hopper 11, some of the materials falling from the middle of the storage hopper 11 will be blocked by the baffle plate 3, and when the sand screening machine body 1 is working... The generated vibration force, combined with the two sets of counterweights 33, causes the baffle plate 3 to shake up and down repeatedly, and causes some of the material on the top of the baffle plate 3 to be transferred from the inner wall of the guide groove 31 to the outside. Under the action of the baffle plate 3, this step can improve the cleanliness of the middle part of the screw 13, reduce the transfer of some fallen material to the inner groove of the screw 13, and prevent the problem of large resistance when the adjusting plate 14 and the screw 13 are connected by threads. Under the action of the guide groove 31, the material attached to the top of the baffle plate 3 can be moved.

[0030] like Figure 1-5As shown, the inner wall of the stirring block 18 has an inner cavity 4; the inner wall of the inner cavity 4 is provided with a rolling ball 41; during operation, by providing an inner cavity 4 in the inner wall of the stirring block 18, the rolling ball 41 can continuously roll on the inner wall of the inner cavity 4 and perform knocking vibration when the stirring block 18 is flipped. This step, in conjunction with the provided rolling ball 41, can improve the cleanliness of the middle part of the stirring block 18, and under the action of vibration, accelerate the unblocking work inside the storage hopper 11.

[0031] like Figure 1-5 As shown, an elastic element 5 is fixedly connected to the outer wall of the storage hopper 11; a connecting shaft 51 is fixedly connected to the end of the elastic element 5, and the connecting shaft 51 and the rotating rod 17 are rotatably connected; during operation, the elastic element 5 is provided on the outer wall of the storage hopper 11, and under the elastic action of the elastic element 5, the end of the adjusting plate 14 can be squeezed in the opposite direction, and the position of the adjusting plate 14 is reinforced. This step, in conjunction with the elastic element 5, can improve the stability of the adjusting plate 14 during use and reduce the problem of slight shaking during operation that affects the unblocking of the sand screening machine body 1.

[0032] like Figure 1-5 As shown, a pad 6 is fixedly connected to the middle of the top plate 22. During operation, by setting a pad 6 of soft material in the middle of the top plate 22, the operator's hand can first make deep contact with the pad 6 when pulling or pushing the top plate 22. This step, under the action of the pad 6, can reduce the problem of slipping when holding the top plate 22 in the middle, and at the same time improve the comfort during the holding process.

[0033] like Figure 1-5 As shown, a friction cylinder 7 is rotatably connected to the middle of the handle 15, and the outer wall of the friction cylinder 7 is recessed. During operation, by providing a friction cylinder 7 at the end of the handle 15, this step can reduce the need for the operator's hand to repeatedly rotate and rub against the surface of the handle 15, thereby improving the convenience of rotating the handle 15.

[0034] Working Principle: After installing the sand screening machine body 1 in the working area, the switch of the sand screening machine body 1 can be turned on, allowing the screen and belt in the middle to work normally. Subsequently, the operator can continuously inject an appropriate amount of material into the middle of the storage hopper 11 using tools. When the material becomes clogged in the storage hopper 11, the operator can turn on the motor 16 switch, so that its output end can synchronously drive the mixing block 18 to rotate on the inner wall of the storage hopper 11, clearing the clogged area. When it is necessary to adjust the working position of the mixing block 18, the operator can hold the middle of the handle 15 and rotate it. The adjusting plate 14, threaded with the screw 13, can slide at the top of the sand screening machine body 1, thereby changing the working position of the motor 16 and the mixing block 18. A top plate 22 is provided on the outer wall of the sand screening machine body 1. When the operator needs to rotate the handle 15, their other hand can press the middle of the top plate 22, causing the locking frame 23 to gradually disengage completely from the protrusion 24 as the top plate 22 moves inward. At this time, the operator can rotate the handle 15 to adjust the position of the adjusting plate 14. After the adjustment is completed, the support force on the top plate 22 is released, and the two sets of spring rods... Under the action of reset, the top plate 22 can be pushed outward again until the frame 23 completely overlaps and contacts the inner wall of the protrusion 24 again, and the position of the frame 23 is limited by the limiting plate 25. By setting an inclined baffle 3 at the end of the adjusting plate 14, when the subsequent workers continuously input materials into the inner wall of the storage hopper 11, some of the materials falling from the middle of the storage hopper 11 will be blocked by the baffle 3. In addition, the vibration force generated by the sand screening machine body 1 during operation, together with the two sets of counterweights 33, can make the baffle 3 shake up and down repeatedly, and make some of the material at the top of the baffle 3 fall out of the guide. The material is transferred to the outside through the inner wall of the trough 31. An inner cavity 4 is provided on the inner wall of the stirring block 18. When the stirring block 18 is flipped, the rolling ball 41 can continuously roll on the inner wall of the inner cavity 4 and vibrate. An elastic element 5 is provided on the outer wall of the storage hopper 11. Under the elastic action of the elastic element 5, the end of the adjusting plate 14 can be squeezed in the opposite direction and the position of the adjusting plate 14 can be reinforced. A soft material pad 6 is provided in the middle of the top plate 22. When the top plate 22 is pulled or pushed, the operator's hand can first make deep contact with the pad 6. A friction cylinder 7 is provided at the end of the handle 15.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A sand screening device with an adjustable structure, comprising a sand screening machine body (1); a storage hopper (11) is fixedly connected to the top of the sand screening machine body (1); characterized in that: A bracket (12) is fixedly connected to the top of the sand screening machine body (1); a screw (13) is rotatably connected to the inner wall of the bracket (12); an adjusting plate (14) is threadedly connected to the end of the screw (13), and the adjusting plate (14) is slidably set on the top of the sand screening machine body (1); a rotating handle (15) is fixedly connected to the other end of the screw (13); a motor (16) is installed on the side wall of the adjusting plate (14); a rotating rod (17) is fixedly connected to the output end of the motor (16), and the rotating rod (17) is through-hole set in the middle of the storage hopper (11); a stirring block (18) is fixedly connected to the end of the rotating rod (17), and the stirring block (18) is set inside the storage hopper (11).

2. The sand screening device with an adjustable structure as described in claim 1, characterized in that: Two sets of spring rods (2) are fixed to the inner wall of the sand screening machine body (1); a slide rod (21) is fixed to the output end of the spring rod (2), and the slide rod (21) is slidably set in the middle of the sand screening machine body (1); a top plate (22) is fixed to the end of the slide rod (21); a clamping frame (23) is fixed to the top of the top plate (22); a protrusion (24) matching the shape of the clamping frame (23) is fixed to the middle of the screw (13); a limit plate (25) is fixed to the end of the protrusion (24).

3. The sand screening device with an adjustable structure as described in claim 1, characterized in that: The end of the adjusting plate (14) is connected to a torsion spring and a baffle plate (3) is inclined; a guide groove (31) is fixed to the top of the baffle plate (3); two sets of connecting parts (32) are fixed to the side wall of the baffle plate (3); a counterweight block (33) is rotatably connected to the middle of the connecting parts (32).

4. A sand screening device with an adjustable structure as described in claim 1, characterized in that: The inner wall of the stirring block (18) is provided with an inner cavity (4); the inner wall of the inner cavity (4) is provided with a rolling ball (41).

5. A sand screening device with an adjustable structure as described in claim 1, characterized in that: The outer wall of the storage hopper (11) is fixed with an elastic element (5); the end of the elastic element (5) is fixed with a connecting shaft (51), and the connecting shaft (51) and the rotating rod (17) are rotatably connected.

6. A sand screening device with an adjustable structure as described in claim 2, characterized in that: A gasket (6) is fixedly connected to the middle of the top plate (22).

7. A sand screening device with an adjustable structure as described in claim 1, characterized in that: The rotating handle (15) is rotatably connected to a friction cylinder (7) in the middle, and the outer wall of the friction cylinder (7) is recessed.

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