Sand screening equipment for road construction

Abstract

The utility model relates to the technical field of screening equipment, in particular to sand screening equipment for road construction, which comprises a box body, supporting legs are arranged at four corners of the lower end of the box body, a mounting frame is arranged at the upper end of the box body, a screening device is arranged in the mounting frame, and an auxiliary device is arranged at the front end of the box body. And a discharging opening is formed in the lower portion of the inner left wall of the box body, mounting plates are jointly and fixedly mounted between the front supporting legs and the rear supporting legs which are opposite, telescopic air cylinders are arranged on the front portions and the rear portions of the lower ends of the two mounting plates, and fixing plates are jointly and fixedly mounted at the output ends of every two adjacent telescopic air cylinders. According to the sand screening equipment for road construction, moving and fixing are convenient, the motor drives the rotating rod, the circular block and the top block, the screening device generates stable and efficient vibration so as to improve the screening efficiency, the bolts are adopted for connecting the screening frame, maintenance is convenient, the maintenance difficulty and cost are reduced, and stable operation of the equipment is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of screening equipment, in particular to sand screening equipment for road construction. Background Art

[0002] In the field of road construction, sand is a key basic material, and its quality and processing efficiency have a vital impact on the overall quality and progress of road projects. Traditional sand screening equipment often has many limitations. In terms of equipment maintenance, the structural design of traditional sand screening equipment is not user-friendly. The screen of many devices is connected to the main frame by welding or complex bolts. When the screen becomes worn, blocked or damaged due to long-term use and needs to be replaced, maintenance personnel need to spend a lot of time and energy to disassemble and install the screen. For example, at some construction sites, due to the lack of convenient maintenance methods, the screen replacement work may require the suspension of the entire construction process, which not only delays the construction period but also increases construction costs. Therefore, we have launched a new sand screening equipment for road construction. Utility Model Content

[0003] The main purpose of the utility model is to provide a sand screening device for road construction, which can effectively solve the problems in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A sand screening device for road construction comprises a box body, support legs are provided at the four corners of the lower end of the box body, a mounting frame is provided at the upper end of the box body, a screening device is provided inside the mounting frame, an auxiliary device is provided at the front end of the box body, a discharge port is provided at the lower part of the inner left wall of the box body, a mounting plate is fixedly installed between the front and rear two opposite supporting legs, a telescopic cylinder is provided at the lower front and rear ends of the two mounting plates, a fixing plate is fixedly installed at the output ends of the two adjacent telescopic cylinders, and universal wheels are provided at the lower front and rear ends of the two fixing plates.

[0006] Preferably, the screening device includes a support plate, two of which are provided, an H-shaped connecting plate is fixedly installed between the two support plates, a vertical plate is fixedly installed at the middle of the lower end of the H-shaped connecting plate, four springs are provided at one end of the two support plates close to the inner wall of the mounting frame, a screening frame is provided at the upper end of the H-shaped connecting plate, mounting ears are provided at the upper left and upper right parts of the screening frame, fixing holes are provided at the two mounting ears and the middle parts of the upper ends of the two support plates, a pin is commonly provided between the two corresponding fixing holes, and handles are provided above the middle of the front end and the middle of the rear end of the screening frame.

[0007] Preferably, the spring is fixedly connected with the inner wall of the mounting frame.

[0008] By adopting the technical scheme, the spring is fixed on the inner wall of the mounting frame, and stable elastic supporting force can be provided for the components connected therewith.

[0009] Preferably, the inner lower wall of the box body 1 is inclinedly arranged from left low to right high.

[0010] By adopting the technical scheme, the internal sand can be conveniently and quickly slid out.

[0011] Preferably, the right end of the vertical plate is in movable contact with the outer surface of the auxiliary device.

[0012] By adopting the technical scheme, the movement or force generated by the auxiliary device can be transmitted to the vertical plate.

[0013] Preferably, the auxiliary device comprises a motor, a rotating rod is fixedly installed at the output end of the motor, a circular block is arranged on the outer surface of the rotating rod, top blocks are arranged on the upper and lower parts of the outer surface of the circular block, and a bearing is arranged on the rear part of the outer surface of the rotating rod.

[0014] By adopting the technical scheme, the rotating rod is driven to rotate through the rotating movement of the motor, so that the circular block and the top blocks are conveniently driven to rotate.

[0015] Preferably, the rear part of the rotating rod penetrates and extends into the interior of the box body, and the rear part of the outer surface of the rotating rod is rotatably connected with the inner rear wall of the box body through the bearing.

[0016] By adopting the technical scheme, the bearing can reduce the frictional resistance when the rotating rod rotates, and improve the rotating efficiency.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1. The motor drives the rotating rod to rotate, drives the circular block and the top blocks thereon to do circular motion, the top blocks periodically push the vertical plate, the force is transmitted to the supporting plate through the H-shaped connecting plate, the spring is connected with the mounting frame, stable and efficient vibration of the screening device is generated in the mounting frame, the screening speed of the sand is accelerated, the screening efficiency is improved, meanwhile, the screening frame and the supporting plate are connected in the form of the bolt, when the screening frame is full of sundries or damaged, only the bolt needs to be pulled out, two workers can conveniently take out the screening frame to clean the sundries or replace the new screening frame by holding the handle, then the new screening frame can be quickly installed in place, the equipment maintenance difficulty and time cost are greatly reduced, the continuous and stable operation of the equipment is ensured, and the overall service life of the equipment is prolonged.

[0019] 2. By setting up a telescopic cylinder to work in conjunction with the support legs, fixed plates and universal wheels, during initial placement, the telescopic cylinder retracts and the support legs stably bear the weight of the equipment, ensuring that the equipment will not shake or shift due to external forces during the screening operation, providing a solid foundation for accurate sand screening and ensuring the stability and reliability of equipment operation in the workplace. When the equipment needs to be moved to other construction sites, the telescopic cylinder extends to push the fixed plate down, allowing the universal wheels to contact the ground and lift the main body of the equipment. With the help of the universal wheels, the equipment can be easily and flexibly transferred to the designated location, greatly improving the maneuverability and site adaptability of the equipment and reducing the consumption of manpower and material resources during the equipment transfer process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a sand screening device for road construction according to the present utility model;

[0021] Figure 2 This is a schematic diagram of the overall cross-sectional structure of a sand screening device for road construction according to the present invention;

[0022] Figure 3 This is a schematic diagram of the overall structure of a screening device for sand screening equipment for road construction in the utility model;

[0023] Figure 4 This is a schematic diagram of the overall structure of an auxiliary device of sand screening equipment for road construction in the utility model.

[0024] In the figure: 1. Box body; 2. Support legs; 3. Mounting frame; 4. Screening device; 41. Support plate; 42. H-shaped connecting plate; 43. Vertical plate; 44. Spring; 45. Screening frame; 46. Mounting ear; 47. Fixing hole; 48. Latch; 49. Handle; 5. Auxiliary device; 51. Motor; 52. Rotating rod; 53. Round block; 54. Top block; 55. Bearing; 6. Feeding port; 7. Mounting plate; 8. Telescopic cylinder; 9. Fixing plate; 10. Universal wheel. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral 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, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0028] See also Figure 1-4 , the utility model provides a technical solution:

[0029] A sand screening device for road construction includes a box body 1, support legs 2 are provided at the four corners of the lower end of the box body 1, a mounting frame 3 is provided at the upper end of the box body 1, a screening device 4 is provided inside the mounting frame 3, an auxiliary device 5 is provided at the front end of the box body 1, a discharge port 6 is provided at the lower part of the inner left wall of the box body 1, a mounting plate 7 is fixedly installed between the front and rear two opposite supporting legs 2, a telescopic cylinder 8 is provided at the lower front and rear ends of the two mounting plates 7, a fixing plate 9 is fixedly installed at the output ends of the two adjacent telescopic cylinders 8, and a universal wheel 10 is provided at the lower front and rear ends of the two fixing plates 9.

[0030] In this embodiment, the screening device 4 includes a support plate 41, which is provided with two support plates 41. An H-shaped connecting plate 42 is fixedly installed between the two support plates 41, and a vertical plate 43 is fixedly installed at the lower middle part of the H-shaped connecting plate 42. Four springs 44 are provided at one end of the two support plates 41 close to the inner wall of the mounting frame 3, and a screening frame 45 is provided at the upper end of the H-shaped connecting plate 42. The upper left and upper right parts of the screening frame 45 are provided with mounting ears 46, and the two mounting ears 46 and the upper middle parts of the two support plates 41 are provided with fixing holes 47, wherein a latch 48 is commonly provided between the two corresponding fixing holes 47 above and below, and handles 49 are provided at the upper middle part of the front end and the upper middle part of the rear end of the screening frame 45; the spring 44 is fixedly connected to the inner wall of the mounting frame 3; the inner lower wall of the box body 1 is inclined with the left lower and the right higher; the right end of the vertical plate 43 is in active contact with the outer surface of the auxiliary device 5.

[0031] Through the above scheme: when there are too many debris inside the screening frame 45 after screening, the two latches 48 are pulled out respectively, and then two staff members can take out the internal screening frame 45 by holding the handle 49 at the same time, and pour out the internal debris. When the screening frame 45 is damaged, the screening frame 45 can also be replaced in this way. When installing the screening frame 45, the screening frame 45 is placed on the two support plate 41 brackets, and the fixing holes 47 on the mounting ears 46 are aligned with the fixing holes 47 on the two support plates 41, and then the screening frame 45 is fixed to the two support plates 41 by the two latches 48. When the screening frame 45 vibrates, the sand will be screened through the drying net below the screening frame 45, and finally the screened sand falls into the box body 1 and slides out.

[0032] In this embodiment, the auxiliary device 5 includes a motor 51, and a rotating rod 52 is fixedly installed at the output end of the motor 51. A circular block 53 is provided on the outer surface of the rotating rod 52, and a top block 54 is provided on the upper and lower parts of the outer surface of the circular block 53. A bearing 55 is provided on the rear part of the outer surface of the rotating rod 52; the rear part of the rotating rod 52 passes through and extends to the interior of the box body 1, and the rear part of the outer surface of the rotating rod 52 is rotatably connected to the inner rear wall of the box body 1 through the bearing 55.

[0033] According to the above solution, the motor 51 is started, and the motor 51 drives the rotating rod 52 to start rotating. The circular block 53 on the rotating rod 52 rotates synchronously with it, and the top blocks 54 on the upper and lower outer surfaces of the circular block 53 also perform circular motion. Because the right end of the vertical plate 43 is in active contact with the top block 54 of the circular block 53 on the rotating rod 52, when the top block 54 rotates to a specific position with the circular block 53, it pushes the vertical plate 43. After the vertical plate 43 is pushed by the top block 54, the screening device 4 as a whole begins to vibrate within the installation frame 3, thereby facilitating the screening of sand.

[0034] It should be noted that the present invention is a sand screening device for road construction. During use, when the device is initially placed, the telescopic cylinder 8 is in a retracted state, and the supporting legs 2 bear the weight of the entire device, making it stable on the work site. When the device needs to be moved, the telescopic cylinder 8 is extended to push the fixed plate 9 down, so that the universal wheel 10 contacts the ground and lifts the device body. With the help of the universal wheel 10, the device can be flexibly transferred to a specified position. When screening, the selected sand is poured into the screening frame 45 and the motor 51 is turned on. The motor 51 drives the rotating rod 52 to rotate. When the rotating rod 52 rotates, the circular block 53 on its outer surface rotates synchronously, and the top block 54 on the circular block 53 performs a circular motion. When the top block 54 rotates to a specific position with the circular block 53, the top block 54 pushes the vertical plate 43. After the vertical plate 43 is pushed, the force is transmitted to the support plate 41 through the H-shaped connecting plate 42, so that the screening device 4 as a whole vibrates in the installation frame 3. The vibration makes the sand in the screening frame 45 jump and roll, and the sand with a particle size smaller than the screen mesh aperture passes through the screen and falls into the box body 1. The fallen sand slides to the left along the inner wall and is discharged from the box body 1 through the discharge port 6 for collection and standby. When there are too many debris in the screening frame 45 or the screening frame 45 is damaged, the pin 48 is pulled out, and two staff members hold the handle 49 to take out the screening frame 45 to clean the debris or replace the new screening frame 45. Then, the screening frame 45 is placed between the two support plates 41, so that the fixing hole 47 of the mounting ear 46 is aligned with the fixing hole 47 on the support plate 41, and the pin 48 is inserted to complete the fixation and the installation can be carried out quickly.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A sand screening device for road construction, comprising a box (1), characterized in that: Support legs (2) are provided at the four corners of the lower end of the box body (1), a mounting frame (3) is provided at the upper end of the box body (1), a screening device (4) is provided inside the mounting frame (3), an auxiliary device (5) is provided at the front end of the box body (1), a feed opening (6) is provided at the lower part of the inner left wall of the box body (1), a mounting plate (7) is fixedly installed between the front and rear opposite support legs (2), a telescopic cylinder (8) is provided at the lower front and rear ends of the two mounting plates (7), a fixing plate (9) is fixedly installed at the output ends of the two adjacent telescopic cylinders (8), and a universal wheel (10) is provided at the lower front and rear ends of the two fixing plates (9); The screening device (4) includes a support plate (41), two of which are provided, an H-shaped connecting plate (42) being fixedly installed between the two support plates (41), a vertical plate (43) being fixedly installed at the middle of the lower end of the H-shaped connecting plate (42), four springs (44) being provided at one end of each of the two support plates (41) close to the inner wall of the mounting frame (3), a screening frame (45) being provided at the upper end of the H-shaped connecting plate (42), mounting ears (46) being provided at the upper left and upper right portions of the screening frame (45), fixing holes (47) being provided at the two mounting ears (46) and the middle portions of the upper ends of the two support plates (41), wherein a latch (48) is provided between the two corresponding fixing holes (47) at the upper and lower ends, and a handle (49) being provided at the upper middle portion of the front end and the upper middle portion of the rear end of the screening frame (45).

2. A sand screening device for road construction according to claim 1, characterized in that: The spring (44) is fixedly connected to the inner wall of the installation frame (3).

3. The sand screening equipment for road construction according to claim 1, characterized in that: The inner lower wall of the box body (1) is arranged to be inclined with the left side lower and the right side higher.

4. The sand screening equipment for road construction according to claim 1, characterized in that: The right end of the vertical plate (43) is in active contact with the outer surface of the auxiliary device (5).

5. The sand screening equipment for road construction according to claim 4, characterized in that: The auxiliary device (5) comprises a motor (51), a rotating rod (52) is fixedly mounted on the output end of the motor (51), a circular block (53) is provided on the outer surface of the rotating rod (52), a top block (54) is provided on the upper and lower outer surfaces of the circular block (53), and a bearing (55) is provided on the rear outer surface of the rotating rod (52).

6. The sand screening equipment for road construction according to claim 5, characterized in that: The rear portion of the rotating rod (52) penetrates and extends into the interior of the box body (1), and the rear portion of the outer surface of the rotating rod (52) is rotatably connected to the inner rear wall of the box body (1) via a bearing (55).

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