Portable gravel screening device

Abstract

The utility model provides a portable gravel screening device which comprises a screening box, screening assemblies are arranged on the left side and the right side of the screening box, each screening assembly comprises a fixing box, the fixing boxes are fixedly connected to the left side and the right side of the screening box, and reset springs are arranged on the upper side and the lower side of an inner cavity of each fixing box. A movable block is arranged on the inner side of the reset spring. The output end of a rotating motor drives a rotating disc to rotate, the rotating disc drives a protruding block to apply force to a punching net plate and abut against the punching net plate, at the moment, a movable block is driven to move through a transmission rod under the influence of stress on the punching net plate, and when the movable block moves, a reset spring is driven to deform due to the influence of the force; and force generated after deformation is conducted to the punching screen plate through the transmission rod again, the shaking amplitude of the punching screen plate is increased, then the gravel on the top of the punching screen plate shakes, blockage caused by the fact that the gravel is accumulated in a certain area of the punching screen plate is avoided, and the screening effect is improved.

Description

Technical Field

[0001] The utility model relates to a portable sand and gravel screening device, belonging to the technical field of sand and gravel. Background Art

[0002] Sand and gravel is a general term for sand and stones, which are widely used in fields such as construction, road construction, and water conservancy projects. Sand and gravel can be divided into various types according to their sources and uses, such as river sand, sea sand, machine-made sand, crushed stones, etc. A screening device is required during the processing of sand and gravel.

[0003] For example, the patent application No. CN214052432U discloses a sand and gravel screening device, including a screening box. A feed hopper communicating with the screening box is arranged on the top surface of the screening box. A plurality of screening components are sequentially arranged in the screening box from top to bottom. The screening component includes a screening pipe, and a plurality of discharge ports are opened on the screening pipe. The diameters of the discharge ports of the plurality of screening pipes decrease sequentially from top to bottom. The screening component further includes a rotating member arranged in the screening pipe. An inlet is opened at the top of the screening pipe, and the inlet close to the feed hopper communicates with the feed hopper. This application has the effects of improving screening efficiency, reducing labor costs, and improving the production quality of sand and gravel.

[0004] The above screening device uses a vibration motor to drive the vibrating screen plate for screening. Since the punched screen plate needs to screen a large amount of sand and gravel, and when the sand and gravel fall onto the surface of the screen plate through the inlet, it is very easy to accumulate in a large amount in a certain area of the screen plate, which may cause the punched screen plate to be blocked, thereby affecting the screening efficiency.

[0005] Therefore, a portable sand and gravel screening device is proposed. Content of the Utility Model

[0006] In view of this, the utility model provides a portable sand and gravel screening device to solve or alleviate the technical problems existing in the prior art, and at least provide a beneficial option.

[0007] The technical solution of the utility model is realized as follows: A portable sand and gravel screening device includes a screening box. Screening components are arranged on both the left and right sides of the screening box. The screening component includes a fixed box, and the fixed box is fixedly connected to both the left and right sides of the screening box. Reset springs are arranged on both the upper and lower sides of the inner cavity of the fixed box. An active block is arranged inside the reset spring. A transmission rod is welded to the inner side of the active block. A clamping seat is welded to the inner side of the transmission rod. A punched screen plate is clamped inside the clamping seat. Rotating motors are arranged on both the left and right sides of the screening box and at the top of the fixed box. The output end of the rotating motor is fixedly connected to a rotating shaft. A rotating disc is fixedly connected to the inner side of the rotating shaft. A convex block is welded to the front side of the rotating disc.

[0008] Further preferably, a sliding groove is formed on the outer side of the inner cavity of the fixed box, a sliding block is fixedly connected to the outer side of the movable block, and the sliding block is slidably connected in the sliding groove.

[0009] Further preferably, a limiting groove is formed on the inner side of the fixed box, reserved grooves are formed on both the left and right sides of the screening box, and the inner side of the transmission rod penetrates through the limiting groove and the reserved groove and extends into the inner cavity of the screening box.

[0010] Further preferably, limiting bolts are arranged on both the front and rear sides of the clamping seat, and the inner sides of the limiting bolts penetrate through the clamping seat and are threadedly connected to the inner surface of the punching mesh plate.

[0011] Further preferably, a material receiving box is arranged at the bottom of the inner cavity of the screening box, and moving wheels are arranged around the bottom of the material receiving box.

[0012] Further preferably, sliding grooves are formed on both the left and right sides at the bottom of the inner cavity of the screening box, and the bottoms of the moving wheels are slidably connected in the sliding grooves.

[0013] Further preferably, guide plates are welded on both the left and right sides of the inner cavity of the screening box, and the guide plates are triangular.

[0014] Further preferably, a maintenance cover plate is arranged on the front side of the screening box, and a feed pipe is communicated with the top of the screening box.

[0015] Due to the adoption of the above technical solutions in the embodiments of the present invention, the following advantages are achieved:

[0016] First, the output end of the rotating motor drives the rotating disc to rotate in the present invention, and the rotating disc drives the convex block to apply force to and press against the punching mesh plate. At this time, the punching mesh plate drives the movable block to move under the influence of force, and when the movable block moves, the reset spring deforms under the influence of force, and the force generated after the deformation is transmitted to the punching mesh plate through the transmission rod again, increasing its shaking amplitude, and then making the sand and gravel on the top of the punching mesh plate shake, avoiding the accumulation of sand and gravel in a certain area of the punching mesh plate and causing blockage, and improving the screening effect.

[0017] Second, in the present invention, by providing the sliding groove and the sliding block, the movement track of the movable block can be limited, improving its stability during the movement process. By providing the limiting groove and the reserved groove, the transmission rod can be limited to prevent it from shifting and affecting the position of the punching mesh plate. By providing the limiting bolts, the punching mesh plate can be limited to prevent it from falling off during the shaking process. By providing the material receiving box, it is convenient to receive the screened sand and gravel, and at the same time, it is convenient for the staff to take, playing a portable role. By providing the sliding groove and the moving wheels, the stability of taking the material receiving box can be improved.

[0018] The above summary is for the purpose of the specification only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for use in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] Figure 1 Schematic diagram of the three-dimensional structure of the present utility model;

[0021] Figure 2 Schematic diagram of the sectional structure of the screening box of the present utility model;

[0022] Figure 3 Schematic diagram of the screening assembly structure of the present utility model;

[0023] Figure 4 Schematic diagram of the rotating disk structure of the present utility model;

[0024] Figure 5 Schematic diagram of the material receiving box structure of the present utility model.

[0025] Reference numerals: 1, screening box; 2, screening assembly; 201, fixed box; 202, transmission rod; 203, movable block; 204, return spring; 205, perforated mesh plate; 206, card seat; 207, limiting groove; 208, slider; 209, sliding groove; 210, limiting bolt; 3, rotating motor; 4, feed pipe; 5, maintenance cover plate; 6, material receiving box; 7, sliding groove; 8, deflector; 9, convex block; 10, reserved groove; 11, rotating shaft; 12, rotating disk; 13, moving wheel. Detailed Embodiments

[0026] In the following, only some exemplary embodiments are briefly described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present utility model. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.

[0027] The following will describe the embodiments of the present utility model in detail with reference to the accompanying drawings.

[0028] Embodiment 1

[0029] AsFigures 1-5 As shown in Figures 1-5 , an embodiment of the utility model provides a portable sand and gravel screening device, which includes a screening box 1. Screening components 2 are arranged on both the left and right sides of the screening box 1. The screening component 2 includes a fixed box 201. The fixed box 201 is fixedly connected to both the left and right sides of the screening box 1. Reset springs 204 are arranged on both the upper and lower sides of the inner cavity of the fixed box 201. An activity block 203 is arranged inside the reset spring 204. A transmission rod 202 is welded to the inner side of the activity block 203. A clamping seat 206 is welded to the inner side of the transmission rod 202. A punching mesh plate 205 is clamped inside the clamping seat 206. Rotating motors 3 are arranged on both the left and right sides of the screening box 1 and at the top of the fixed box 201. The output end of the rotating motor 3 is fixedly connected to a rotating shaft 11. A rotating disk 12 is fixedly connected to the inner side of the rotating shaft 11. A convex block 9 is welded to the front side of the rotating disk 12.

[0030] The output end of the rotating motor 3 drives the rotating disk 12 to rotate. The rotating disk 12 drives the convex block 9 to apply force to and press against the punching mesh plate 205. At this time, due to the influence of the force, the punching mesh plate 205 drives the activity block 203 to move through the transmission rod 202. When the activity block 203 moves, it drives the reset spring 204 to deform due to the force. The force generated after the deformation is again conducted to the punching mesh plate 205 through the transmission rod 202, increasing its shaking amplitude. Then, the sand and gravel on the top of the punching mesh plate 205 shake, preventing the sand and gravel from accumulating in a certain area of the punching mesh plate 205 and causing blockage, and improving the screening effect.

[0031] Embodiment 2

[0032] In one embodiment, a sliding groove 209 is opened on the outer side of the inner cavity of the fixed box 201. A sliding block 208 is fixedly connected to the outer side of the activity block 203, and the sliding block 208 is slidably connected inside the sliding groove 209. A limiting groove 207 is opened on the inner side of the fixed box 201. Reserved grooves 10 are opened on both the left and right sides of the screening box 1. The inner side of the transmission rod 202 penetrates through the limiting groove 207 and the reserved groove 10 and extends into the inner cavity of the screening box 1. Limiting bolts 210 are arranged on both the front and rear sides of the clamping seat 206, and the inner sides of the limiting bolts 210 penetrate through the clamping seat 206 and are threadedly connected to the inner surface of the punching mesh plate 205. A material receiving box 6 is arranged at the bottom of the inner cavity of the screening box 1. Moving wheels 13 are arranged around the bottom of the material receiving box 6. Sliding grooves 7 are opened on both the left and right sides of the bottom of the inner cavity of the screening box 1. The bottoms of the moving wheels 13 are slidably connected inside the sliding grooves 7. Flow guiding plates 8 are welded on both the left and right sides of the inner cavity of the screening box 1, and the flow guiding plates 8 are triangular. A maintenance cover plate 5 is arranged on the front side of the screening box 1. A feed pipe 4 is communicated with the top of the screening box 1.

[0033] By setting the sliding groove 209 and the slider 208, the movement track of the movable block 203 can be limited, improving its stability during the movement. By setting the limiting groove 207 and the reserved groove 10, the transmission rod 202 can be limited to prevent it from shifting and then affecting the position of the punching mesh plate 205. By setting the limiting bolt 210, the punching mesh plate 205 can be limited to prevent it from falling off during shaking. By setting the material receiving box 6, it is convenient to receive the screened sand and gravel, and it is also convenient for the staff to take, playing a role of portability. By setting the sliding groove 7 and the moving wheel 13, the stability when taking the material receiving box 6 can be improved.

[0034] When the utility model is working: First, the sand and gravel to be screened are poured into the screening box 1 through the feed pipe 4. At this time, the sand and gravel fall to the top of the punching mesh plate 205. Then, the rotating motor 3 is started. The output end of the rotating motor 3 drives the rotating shaft 11 to rotate. The rotating shaft 11 drives the rotating disk 12 to rotate. The rotating disk 12 drives the convex block 9 to apply force to and press against the punching mesh plate 205. At this time, affected by the force, the punching mesh plate 205 drives the movable block 203 to move through the transmission rod 202. When the movable block 203 moves, it drives the return spring 204 to deform due to the force. The force generated after deformation is again transmitted to the punching mesh plate 205 through the transmission rod 202, increasing its shaking amplitude. Then, the sand and gravel on the top of the punching mesh plate 205 shake, preventing the sand and gravel from accumulating in a certain area of the punching mesh plate 205 and causing blockage, improving the screening effect. The screened sand and gravel fall into the material receiving box 6 through the diversion of the punching mesh plate 205 and the diversion plate 8 for collection. Finally, the staff can open the maintenance cover plate 5 to take out the material receiving box 6, completing the screening work of the sand and gravel (the screening box 1 of this application is a box structure, which is convenient for the staff to take or carry, playing a role of portability).

[0035] The above is only the specific implementation manner of the utility model, but the protection scope of the utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the utility model can easily think of various changes or substitutions, and these should all be covered within the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claimed rights.

Claims

1. A portable sand and gravel screening device, characterized in that: The invention comprises a screening box (1), wherein screening components (2) are arranged on both left and right sides of the screening box (1), wherein the screening components (2) comprise a fixing box (201), wherein the fixing box (201) is fixedly connected to both left and right sides of the screening box (1), wherein both upper and lower sides of the inner cavity of the fixing box (201) are provided with return springs (204), wherein a movable block (203) is arranged on the inner side of the return spring (204), and a transmission rod (203) is welded on the inner side of the movable block (203). 2), a holder (206) is welded to the inner side of the transmission rod (202), a perforated mesh plate (205) is clamped to the inner side of the holder (206), a rotating motor (3) is arranged on the left and right sides of the screening box (1) and located on the top of the fixed box (201), the output end of the rotating motor (3) is fixedly connected to a rotating shaft (11), the inner side of the rotating shaft (11) is fixedly connected to a rotating disk (12), and a protrusion (9) is welded to the front side of the rotating disk (12).

2. A portable sand and gravel screening device according to claim 1, characterized in that: A sliding groove (209) is provided on the outer side of the inner cavity of the fixed box (201), a sliding block (208) is fixedly connected to the outer side of the movable block (203), and the sliding block (208) is slidably connected in the sliding groove (209).

3. A portable sand and gravel screening device according to claim 1, characterized in that: The inner side of the fixing box (201) is provided with a limiting groove (207), the left and right sides of the screening box (1) are provided with reserved grooves (10), and the inner side of the transmission rod (202) passes through the limiting groove (207) and the reserved groove (10) and extends into the inner cavity of the screening box (1).

4. A portable sand and gravel screening device according to claim 1, characterized in that: Limiting bolts (210) are provided on both the front and rear sides of the clamping seat (206), and the inner side of the limiting bolts (210) passes through the clamping seat (206) and is threadedly connected to the inner surface of the perforated mesh plate (205).

5. The portable sand and gravel screening device according to claim 1, characterized in that: A material receiving box (6) is provided at the bottom of the inner cavity of the screening box (1), and movable wheels (13) are provided around the bottom of the material receiving box (6).

6. A portable sand and gravel screening device according to claim 5, characterized in that: Sliding grooves (7) are provided on both left and right sides of the bottom of the inner cavity of the screening box (1), and the bottom of the moving wheel (13) is slidably connected in the sliding grooves (7).

7. A portable sand and gravel screening device according to claim 1, characterized in that: Guide plates (8) are welded on both the left and right sides of the inner cavity of the screening box (1), and the guide plates (8) are triangular in shape.

8. The portable sand and gravel screening device according to claim 1, characterized in that: The front side of the screening box (1) is provided with an inspection cover plate (5), and the top of the screening box (1) is connected to a feed pipe (4).

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