Screening device for gravel stones

Abstract

The utility model discloses a screening device for gravel, which relates to the technical field of gravel screening equipment and comprises a fixing plate, two groups of connecting frames are fixed on one side of the fixing plate, a driving part is arranged at the top of the fixing plate, and a screening component is arranged on one side of the driving part. The gravel screening device has the advantages that by arranging the driving piece, the connecting rod can be conveniently driven to rotate around the eccentric position of the fixing disc, then the connecting block and the screening barrel can be driven to move back and forth, gravel stone can be conveniently and evenly screened through matched use of the screening barrel and the screen, and by arranging the shifting rod, the screening efficiency is improved. The mounting plate can be conveniently driven to be adjusted, the mounting rod can be conveniently fixed by arranging the mounting plate, the mounting rod is adjusted according to the adjusting angle of the mounting plate after the mounting plate is adjusted, the mounting rod can be driven to install the screen when the shifting rod is shifted upwards, and the screen can be disassembled when the shifting rod is shifted downwards.

Description

Technical Field

[0001] This utility model relates to the technical field of sand and gravel screening equipment, and in particular to a screening device for sand and gravel. Background Technology

[0002] Gravel and sand aggregates are loose particle mixtures formed from natural rocks through weathering, erosion, transportation, and long-term deposition. The particle size typically ranges from 2 to 60 millimeters, and they are widely used natural building materials in engineering construction. Their composition includes coarse particles (gravel) and fine particles (sand, silt) formed from the crushing of parent rock. They are characterized by continuous gradation, moderate porosity (20%–35%), and high permeability (permeability coefficient 10). -2 -10 -4 Characteristics include cm / s. Based on their formation, they can be divided into alluvial type (riverbed deposits, well-rounded), alluvial type (piedmont deposits, poorly sorted) and residual type (in-situ weathering, with distinct edges).

[0003] Gravel screening is a crucial step in the production process, aiming to separate stones of different particle sizes to meet the needs of various projects. The main reason for using screening devices is their ability to efficiently process large quantities of materials and ensure screening quality. However, existing screening devices often suffer from inconvenience in installing and replacing screening screens, which directly affects work efficiency. First, the replacement cycle of screening screens is long, usually requiring the disassembly of complex structures and the use of special tools. This not only increases costs but also prolongs equipment downtime. For operations requiring frequent screening, frequent shutdowns and restarts will seriously affect production efficiency and cause economic losses. Second, the design of existing screening devices often lacks human-centered considerations. For example, the method of fixing the screening screen may be too complex, making it easy for operators to make mistakes during maintenance, and even potentially causing equipment damage. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A screening device for sand and gravel includes a fixed plate, two sets of connecting frames fixed on one side of the fixed plate, a driving component provided on the top of the fixed plate, a screening assembly provided on one side of the driving component, and multiple sets of mounting components provided on the top of the screening assembly.

[0007] The screening assembly includes a connecting rod located on one side of the drive component, and two sets of connecting blocks rotatably connected to the other end of the connecting rod. A screening cylinder is bolted to the bottom of the two sets of connecting blocks, and a screen for screening sand and gravel is provided on the inner wall of the screening cylinder.

[0008] The mounting assembly includes two sets of connecting plates located on the outside of the screening cylinder, with an adjusting block rotatably between the two sets of connecting plates. A lever is rotatably mounted on the outside of the adjusting block, and a mounting plate is rotatably mounted on the inner wall of the lever. The outer side of the mounting plate is rotatably connected to the inner wall of the connecting plates, and a mounting rod for mounting the screen is fixed on the inner wall of the mounting plate.

[0009] In a preferred embodiment of the screening device for sand and gravel described in this utility model, the driving component includes a motor fixed to the top of a fixed plate, the output end of the motor is fixed to a fixed disk, and the eccentric part of the fixed disk is rotatably connected to the inner wall of the connecting rod.

[0010] As a preferred embodiment of the screening device for sand and gravel described in this utility model, the inner wall of the connecting frame is rolledly connected with a pulley, one side of the pulley is rotatably connected to a fixed rod, and the other end of the fixed rod is fixed to the outer side of the screening cylinder.

[0011] As a preferred embodiment of the screening device for sand and gravel described in this utility model, the top of the screen is fixed with two vertically installed support rods, and the top of each of the two support rods is fixed with a handle for pulling the screen to move.

[0012] In a preferred embodiment of the screening device for sand and gravel described in this utility model, a support column is fixed to the bottom of the connecting frame, and a support frame is fixed to the bottom of the support column.

[0013] As a preferred embodiment of the screening device for sand and gravel described in this utility model, the inner wall of the support frame is provided with a collection frame for collecting the screened sand and gravel, and a pull rod is fixed on one side of the collection frame.

[0014] As a preferred embodiment of the screening device for sand and gravel described in this utility model, a limiting plate is fixed on one side of the connecting plate, and an installation block is installed on the top of the limiting plate by bolts, and the installation block is connected to the screening cylinder by bolts.

[0015] In summary, this utility model has the following beneficial effects:

[0016] By setting a driving component, the connecting rod can be easily rotated around the eccentric part of the fixed plate, which in turn can drive the connecting block and the screening cylinder to move back and forth. Through the cooperation of the screening cylinder and the screen, the sand and gravel can be easily and evenly screened. By setting a lever, the mounting plate can be easily adjusted. The mounting plate can also be easily fixed. After the mounting plate is adjusted, the mounting rod will adjust the angle of the mounting plate accordingly. When the lever is pushed up, the mounting rod can be driven to install the screen. When the lever is pushed down, the screen can be disassembled. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0018] Figure 1 This is an overall structural diagram of a screening device for sand and gravel.

[0019] Figure 2 This is a structural diagram of the drive component for a screening device used for sand and gravel.

[0020] Figure 3 This is a structural diagram of the screening component of a screening device for sand and gravel.

[0021] Figure 4 This is a structural diagram of the screen and support rods used in a screening device for sand and gravel.

[0022] Figure 5 for Figure 4 The enlarged structural diagram at point A is shown.

[0023] The following components are labeled in the diagram: 1. Fixed plate; 2. Connecting frame; 3. Drive component; 31. Motor; 32. Fixed plate; 4. Screening assembly; 41. Connecting rod; 42. Connecting block; 43. Screening cylinder; 44. Screen; 5. Mounting assembly; 51. Connecting plate; 52. Adjusting block; 53. Lever; 54. Mounting plate; 55. Mounting rod; 6. Pulley; 7. Fixed rod; 8. Support rod; 9. Handle; 10. Support column; 11. Support frame; 12. Collection frame; 13. Pull rod; 14. Limiting plate; 15. Mounting block. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0027] Example 1:

[0028] Reference Figures 1-5 This is the first embodiment of the present invention. This embodiment provides a screening device for sand and gravel, including a fixed plate 1, two sets of connecting frames 2 fixed on one side of the fixed plate 1, a driving component 3 provided on the top of the fixed plate 1, a screening component 4 provided on one side of the driving component 3, and multiple sets of mounting components 5 provided on the top of the screening component 4. By setting the screening component 4, the sand and gravel can be screened evenly. By setting the mounting components 5, the screen 44 can be quickly installed and replaced, thus improving work efficiency.

[0029] The screening assembly 4 includes a connecting rod 41 located on one side of the drive component 3. Two sets of connecting blocks 42 are rotatably connected to the other end of the connecting rod 41. A screening cylinder 43 is bolted to the bottom of the two sets of connecting blocks 42. A screen 44 for screening sand and gravel is provided on the inner wall of the screening cylinder 43.

[0030] By setting the motor 31, the fixed plate 32 can be easily driven to rotate. After the fixed plate 32 rotates, the connecting rod 41 rotates around the eccentric part. The design of the connecting rod 41 can easily drive the connecting block 42, the screening cylinder 43 and the screen 44 to move back and forth. After the screening cylinder 43 and the screen 44 move back and forth, the sand and gravel can be screened evenly.

[0031] The mounting assembly 5 includes two sets of connecting plates 51 located outside the screening cylinder 43. An adjusting block 52 is rotatably connected between the two sets of connecting plates 51. A lever 53 is rotatably connected to the outside of the adjusting block 52. A mounting plate 54 is rotatably connected to the inner wall of the lever 53. The outer side of the mounting plate 54 is rotatably connected to the inner wall of the connecting plate 51. An mounting rod 55 for installing the screen 44 is fixed to the inner wall of the mounting plate 54.

[0032] The design of the two sets of connecting plates 51 facilitates the rotation of the adjusting block 52 and the mounting plate 54. The design of the adjusting block 52 facilitates the connection with the lever 53. By setting the lever 53, the mounting plate 54 can be easily adjusted. By setting the mounting plate 54 and the mounting rod 55 together, the screen 44 can be easily installed and removed. It should be noted that the screen 44 has a groove for easy insertion of the mounting rod 55. However, the groove is very shallow. Although it is shallow, it can prevent the screen 44 from moving. The reason for the shallowness is to prevent the mounting rod 55 from being obstructed when the mounting plate 54 drives the mounting rod 55 to flip. Since the mounting rod 55 is angled upwards, the shallow groove is larger than the mounting rod 55, so it will not obstruct the mounting rod 55. This allows the mounting rod 55 to smoothly detach from and insert into the screen 44.

[0033] Example 2:

[0034] This is the second embodiment of the present invention, which is based on the previous embodiment.

[0035] Specifically, a pulley 6 is rolledly connected to the inner wall of the connecting frame 2, and a fixed rod 7 is rotated on one side of the pulley 6, with the other end of the fixed rod 7 fixed to the outer side of the screening cylinder 43.

[0036] By using multiple sets of fixed rods 7 and pulleys 6 together, the stability of the screening cylinder 43 when it moves can be easily improved. When the screening cylinder 43 moves back and forth, the multiple sets of fixed rods 7 will also move along with it. After the fixed rods 7 move, the pulleys 6 will rotate back and forth in the connecting frame 2.

[0037] Specifically, a support column 10 is fixed to the bottom of the connecting frame 2, and a support frame 11 is fixed to the bottom of the support column 10.

[0038] By using two sets of support columns 10 and two sets of support frames 11 together, the connecting frame 2 can be easily supported, thereby improving the stability of the connecting frame 2.

[0039] Specifically, the inner wall of the support frame 11 has a collection frame 12 for collecting the screened sand and gravel, and a pull rod 13 is fixed on one side of the collection frame 12.

[0040] By setting up the collection frame 12, the screened sand and gravel can be easily collected. By setting up the pull rod 13, the collection frame 12 can be easily pulled out from the support frame 11.

[0041] Example 3:

[0042] This is the third embodiment of the present invention, which is based on the first two embodiments.

[0043] Specifically, the driving component 3 includes a motor 31 fixed to the top of the fixed plate 1, and a fixed plate 32 is fixed to the output end of the motor 31. The eccentric part of the fixed plate 32 is rotatably connected to the inner wall of the connecting rod 41.

[0044] By setting up motor 31, the fixed disk 32 can be easily rotated.

[0045] Specifically, a limiting plate 14 is fixed on one side of the connecting plate 51, and an installation block 15 is installed on the top of the limiting plate 14 by bolts, and the installation block 15 is connected to the screening cylinder 43 by bolts.

[0046] By using the limit plate 14 and the mounting block 15 together, the connecting plate 51 can be easily installed outside the screening cylinder 43.

[0047] Specifically, two vertically installed support rods 8 are fixed to the top of the screen 44, and a handle 9 for pulling the screen 44 to move is fixed to the top of each support rod 8.

[0048] By using the support rod 8 and the handle 9 together, the screen 44 can be easily pulled out or put into the screening cylinder 43.

[0049] When screening gravel is required, the gravel material is first fed into the screen 44. After feeding, the motor 31 is turned on. The rotation of the motor 31 drives the fixed plate 32 to rotate. The rotation of the fixed plate 32 drives the connecting rod 41 to rotate around the eccentric part of the fixed plate 32. After the connecting rod 41 moves, it drives the connecting block 42, the screening cylinder 43 and the screen 44 to move back and forth, so that the gravel is screened evenly. When the screen 44 needs to be disassembled, the operator first moves the lever 53 upward. Because the lever 53 is restricted by the adjusting block 52, moving the lever 53 upward will cause the mounting plate 54 to flip upward. The flipping motion causes the mounting rod 55 to move, and after moving, the mounting rod 55 will detach from the screen 44. When the lever 53 is pushed upward to its limit, the operator can manually pull the handle 9 to drive the support rod 8 to remove the screen 44 from the screening cylinder 43 to complete the disassembly. Installation is also relatively simple. Just put the screen 44 into the screening cylinder 43. Because the bottom of the screening cylinder 43 is conical, the screen 44 will not fall out of the screening cylinder 43 after it falls in. Then push the lever 53 downward. The downward push of the lever 53 will cause the mounting plate 54 and the mounting rod 55 to flip downward. The mounting rod 55 will then be aligned with the groove in the screen 44 and snap into place for installation.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A screening device for sand and gravel, comprising a fixing plate (1), characterized in that: Two sets of connecting frames (2) are fixed on one side of the fixed plate (1), a driving component (3) is provided on the top of the fixed plate (1), a screening component (4) is provided on one side of the driving component (3), and multiple sets of installation components (5) are provided on the top of the screening component (4). The screening assembly (4) includes a connecting rod (41) located on one side of the drive component (3). Two sets of connecting blocks (42) are rotatably connected to the other end of the connecting rod (41). A screening cylinder (43) is bolted to the bottom of the two sets of connecting blocks (42). A screen (44) for screening sand and gravel is provided on the inner wall of the screening cylinder (43). The mounting assembly (5) includes two sets of connecting plates (51) located outside the screening cylinder (43), with an adjusting block (52) rotating between the two sets of connecting plates (51), a lever (53) rotating on the outside of the adjusting block (52), a mounting plate (54) rotating on the inner wall of the lever (53), and the outer side of the mounting plate (54) rotatably connected to the inner wall of the connecting plate (51), and a mounting rod (55) for installing the screen (44) is fixed on the inner wall of the mounting plate (54).

2. The screening device for sand and gravel as described in claim 1, characterized in that: The driving component (3) includes a motor (31) fixed to the top of the fixed plate (1). The output end of the motor (31) is fixed with a fixed disk (32), and the eccentric part of the fixed disk (32) is rotatably connected to the inner wall of the connecting rod (41).

3. The screening device for sand and gravel as described in claim 1, characterized in that: The inner wall of the connecting frame (2) is connected to a pulley (6) which is rolled. A fixed rod (7) is rotated on one side of the pulley (6), and the other end of the fixed rod (7) is fixed to the outside of the screening cylinder (43).

4. The screening device for sand and gravel as described in claim 1, characterized in that: The top of the screen (44) is fixed with two vertically installed support rods (8), and the top of each of the two support rods (8) is fixed with a handle (9) for pulling the screen (44) to move.

5. The screening device for sand and gravel as described in claim 1, characterized in that: The bottom of the connecting frame (2) is fixed with a support column (10), and the bottom of the support column (10) is fixed with a support frame (11).

6. The screening device for sand and gravel as described in claim 5, characterized in that: The inner wall of the support frame (11) has a collection frame (12) for collecting the screened sand and gravel, and a pull rod (13) is fixed on one side of the collection frame (12).

7. The screening device for sand and gravel as described in claim 1, characterized in that: A limiting plate (14) is fixed on one side of the connecting plate (51), and an installation block (15) is installed on the top of the limiting plate (14) by bolts, and the installation block (15) is connected to the screening cylinder (43) by bolts.

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