Gravel sieving device for road and bridge construction

Abstract

The gravel screening device for road and bridge construction comprises a screening plate, a support and a vibration motor, the top of the vibration motor is fixedly connected with the two sides of the bottom of the screening plate, the inner side of the support is connected with the two sides of the left side and the right side of the screening plate in a sliding mode, and a first frame is arranged at the top of the screening plate. By arranging the limiting net sleeve, the periphery of the top of the screening plate can be covered through the limiting net sleeve, the situation that gravels fly out and fall down in the screening process is avoided, and the problem that a structure for limiting the gravels is lacked on the screening plate is solved; the problem that the screening quality is affected due to the fact that the gravel is vibrated and vibrated back and forth in the vibrating screening process when the gravel is vibrated and screened, the gravel falls off from the front side and the rear side of a screen plate, and part of unscreened gravel directly falls into the lower portion is solved, and the effect of limiting the gravel is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of road and bridge, in particular to a sand screening device for road and bridge construction. Background Technique

[0002] Sand is widely used in the fields of building materials and concrete materials. In order to meet the different requirements of urban engineering construction and road construction, sands with different particle sizes and uniformities need to be selected. Therefore, during the road and bridge construction process, a large amount of sand screening operations are often involved. In order to meet the needs of construction efficiency and quality, vibrating screens for screening sand have been widely used in road and bridge operations. For the existing vibrating screens for sand used in road and bridges, except for manual screening through the screen mesh, they all use the vibration method of an electric motor to complete the screening of sand, and the screening efficiency and quality have been greatly improved.

[0003] For example, the application number: CN201620186338.5. The utility model discloses a vibrating screen for road and bridge construction, including a vibrating screen support, a vibrating screen assembly and a power assembly. The vibrating screen assembly is provided with a first screening frame, a second screening frame and a third screening frame; the first screening frame, the second screening frame and the third screening frame are connected end to end in sequence; a connecting assembly is arranged between the vibrating screen assembly and the vibrating screen support; connecting frames are arranged on the first screening frame, the second screening frame and the third screening frame; a left and right screening motor is arranged on the power assembly. Its structure is simple, easy to use, the operation is simple, the screen filtration efficiency is high, and the structure is compact.

[0004] Based on the retrieval of the above patent and the combination with the equipment in the prior art, it is found that when the above equipment is applied, although it can solve the problem that after the sand screening is completed, larger particles of sand will accumulate in the middle part between the screen mesh and the inner wall of the vibrating screen. The space here is very narrow. After a large amount of accumulated sand falls onto the screened sand, it will waste the previous screening work, and the screening speed is not high. There will be gaps at the joints of the sieve plates, which will cause large gravel to fall in. However, during the use process, there is a lack of a structure for limiting the gravel on the sieve plate, resulting in the gravel vibrating back and forth during the vibration screening process. At this time, the gravel will fall from the front and rear sides of the sieve plate. At this time, some unscreened gravel will directly fall below, thus affecting the screening quality. Content of the Utility Model

[0005] To solve the problems raised in the above-mentioned background technology, the purpose of the present utility model is to provide a gravel sieving device for road and bridge construction, which has the advantage of limiting gravel, and solves the problem that there is no structure for limiting gravel on the sieve plate, resulting in the situation that the gravel will bump back and forth during the vibration sieving process. At this time, the gravel will fall from the front and rear sides of the sieve plate, and then some unsieved gravel will directly fall below, thus affecting the sieving quality.

[0006] To achieve the above purpose, the present utility model provides the following technical solutions: A gravel sieving device for road and bridge construction, including a sieving plate, a bracket and a vibration motor. The top of the vibration motor is fixedly connected to both sides of the bottom of the sieving plate. The inner side of the bracket is slidably connected to both sides of the left and right sides of the sieving plate. A first frame is arranged on the top of the sieving plate. A limiting mesh sleeve is fixedly connected to the top of the first frame. A second frame is fixedly connected to the top of the limiting mesh sleeve. Positioning components are fixedly connected to the four corners of the bottom of the first frame. A connecting mechanism is fixedly connected to the outer side of the top of the bracket.

[0007] Preferably, the positioning component includes a positioning insertion rod. The top of the positioning insertion rod is fixedly connected to the four corners of the bottom of the first frame. Positioning grooves are opened at the four corners of the top of the sieving plate. The positioning insertion rod is inserted into the positioning groove.

[0008] Preferably, the connecting mechanism includes a support plate. An installation plate is embedded in the top of the support plate. The inner side of the installation plate is fixedly connected to both sides of the second frame. A bolt is threadedly connected to the top of the installation plate. The installation plate is fixedly connected to the support plate through the bolt.

[0009] Preferably, embedding grooves are opened on both sides of the top of the sieving plate. A magnetic strip is arranged inside the embedding groove. The bottom of the magnetic strip is magnetically adsorbed to the bottom of the inner wall of the embedding groove. The top of the magnetic strip is fixedly connected to both sides of the bottom of the first frame.

[0010] Preferably, a rotating block is arranged on the top of the bolt. The rotating block is welded to the top of the bolt.

[0011] Preferably, anti-slip grooves are opened on the surface of the rotating block. A plurality of anti-slip grooves are opened and are distributed at equal intervals in a ring shape.

[0012] Preferably, an anti-loss rope is fixedly connected to the top of the rotating block. The end of the anti-loss rope away from the rotating block is fixedly connected to the outer side of the support plate.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. The utility model solves the problem that the screen plate lacks a structure for limiting gravel, resulting in the gravel bumping back and forth during the vibration screening process. At this time, the gravel will fall from the front and rear sides of the screen plate, and some unscreened gravel will directly fall below, thus affecting the screening quality. By setting a limit mesh sleeve, the limit mesh sleeve can cover the periphery of the top of the screening plate, avoiding the situation that gravel flies outwards and falls below during the screening process, achieving the effect of limiting gravel.

[0015] 2. The utility model is provided with a positioning component, which is convenient for the user to clean the blockage at the top of the screening plate when it is blocked after long-term use. The user can directly pull up the first frame, so that the first frame drives the positioning plug to be pulled out from the positioning groove, facilitating the user to clean the blockage at the top of the screening plate.

[0016] 3. The utility model is provided with a connection mechanism, which is convenient for the user to replace the limit mesh sleeve when it is damaged after long-term use. The user can loosen the bolt, so that the mounting plate is no longer connected to the support plate. At this time, the second frame is no longer supported and fixed. Then the user can separate the first frame from the screening plate, and then the user can directly replace the limit mesh sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 is an exploded schematic diagram of the parts of the screening plate of the utility model;

[0019] Figure 3 is the utility model Figure 2 is an enlarged structural schematic diagram at A in the utility model.

[0020] In the figure: 1. Screening plate; 2. Bracket; 3. Vibration motor; 4. First frame; 5. Limit mesh sleeve; 6. Second frame; 7. Positioning component; 71. Positioning plug; 72. Positioning groove; 8. Connection mechanism; 81. Support plate; 82. Mounting plate; 83. Bolt; 9. Inlay groove; 10. Magnetic strip; 11. Rotating block; 12. Anti-slip groove; 13. Anti-loss rope. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0022] As Figures 1 to 3 shown, a gravel sieving device for road and bridge construction provided by the present utility model includes a sieving plate 1, a bracket 2 and a vibration motor 3. The top of the vibration motor 3 is fixedly connected to both sides of the bottom of the sieving plate 1. The inner side of the bracket 2 is slidably connected to both sides of the left and right sides of the sieving plate 1. A first frame 4 is arranged on the top of the sieving plate 1. A limit mesh sleeve 5 is fixedly connected to the top of the first frame 4. A second frame 6 is fixedly connected to the top of the limit mesh sleeve 5. Positioning assemblies 7 are fixedly connected to the four corners of the bottom of the first frame 4. A connecting mechanism 8 is fixedly connected to the outer side of the top of the bracket 2.

[0023] Referring Figure 3 to, the positioning assembly 7 includes positioning insertion rods 71. The tops of the positioning insertion rods 71 are fixedly connected to the four corners of the bottom of the first frame 4. Positioning grooves 72 are respectively opened at the four corners of the top of the sieving plate 1. The positioning insertion rods 71 are inserted into the positioning grooves 72.

[0024] As a technical optimization scheme of the present utility model, by arranging the positioning assembly 7, when the top of the sieving plate 1 is blocked and needs to be cleaned after long-term use, the user can directly pull up the first frame 4, so that the first frame 4 drives the positioning insertion rods 71 to be pulled out from the inside of the positioning grooves 72, facilitating the user to clean the blockage at the top of the sieving plate 1.

[0025] Referring Figure 2 to, the connecting mechanism 8 includes a support plate 81. An installation plate 82 is embedded in the top of the support plate 81. The inner side of the installation plate 82 is fixedly connected to both sides of the second frame 6. A bolt 83 is threadedly connected to the top of the installation plate 82. The installation plate 82 is fixedly connected to the support plate 81 through the bolt 83.

[0026] As a technical optimization scheme of the present utility model, by arranging the connecting mechanism 8, when the limit mesh sleeve 5 is damaged and needs to be replaced after long-term use, the user can loosen the bolt 83, so that the installation plate 82 is no longer connected to the support plate 81. At this time, the second frame 6 is no longer supported and fixed. Then the user can separate the first frame 4 from the sieving plate 1, and then the user can directly replace the limit mesh sleeve 5.

[0027] Referring Figure 3 to, embedding grooves 9 are respectively opened on both sides of the top of the sieving plate 1. Magnetic strips 10 are arranged inside the embedding grooves 9. The bottom of the magnetic strips 10 is magnetically adsorbed to the bottom of the inner wall of the embedding grooves 9. The tops of the magnetic strips 10 are fixedly connected to both sides of the bottom of the first frame 4.

[0028] As a technical optimization solution of the present utility model, by providing the inlay groove 9 and the magnetic strip 10, after the user inserts the positioning plug 71 into the corresponding positioning groove 72, the first frame 4 will drive the magnetic strip 10 to be inlaid into the inlay groove 9, and the magnetic force of the magnetic strip 10 can magnetically adsorb to the bottom of the inner wall of the inlay groove 9, thereby improving the stability of the first frame 4 after installation.

[0029] Reference Figure 2 , a rotating block 11 is provided at the top of the bolt 83, and the rotating block 11 is welded to the top of the bolt 83.

[0030] As a technical optimization solution of the present utility model, by providing the rotating block 11, when the user needs to rotate the bolt 83, the user can hold the rotating block 11 and rotate it, so that the rotating block 11 drives the bolt 83 to rotate, providing a convenient force application point for the user. Moreover, by welding the rotating block 11 to the bolt 83, the fixing strength of the rotating block 11 is improved, avoiding the situation of falling off.

[0031] Reference Figure 2 , anti-slip grooves 12 are formed on the surface of the rotating block 11, and a plurality of anti-slip grooves 12 are formed and are distributed at equal intervals in a ring shape.

[0032] As a technical optimization solution of the present utility model, by providing the anti-slip grooves 12, when the user's hand holds the rotating block 11, the user's hand can contact the rotating block 11 through the anti-slip grooves 12, thereby greatly increasing the friction between the user's hand and the rotating block 11 and preventing the situation of slipping due to too low friction.

[0033] Reference Figure 2 , a anti-loss rope 13 is fixedly connected to the top of the rotating block 11, and one end of the anti-loss rope 13 away from the rotating block 11 is fixedly connected to the outside of the support plate 81.

[0034] As a technical optimization solution of the present utility model, by providing the anti-loss rope 13, after the user rotates the rotating block 11 to loosen and remove the bolt 83, the user can directly place the bolt 83 casually. At this time, the rotating block 11 is connected to the support plate 81 through the anti-loss rope 13, thereby avoiding the situation of loss of the bolt 83.

[0035] The working principle and usage process of the present utility model are as follows: When the user starts the vibration motor 3 to drive the screening plate 1 to vibrate and screen the gravel, the limiting mesh sleeve 5 can cover the periphery of the top of the screening plate 1 to prevent the gravel from flying outwards and falling down during the screening process. When the top of the screening plate 1 becomes blocked after long-term use and needs to be cleaned, the user can directly pull up the first frame 4, causing the positioning insertion rod 71 to be pulled out from the positioning slot 72, so as to facilitate the user to clean the blockage at the top of the screening plate 1. When the limiting mesh sleeve 5 is damaged and needs to be replaced after long-term use, the user can loosen the bolt 83, so that the mounting plate 82 is no longer connected to the support plate 81. At this time, the second frame 6 is no longer supported and fixed. Then the user can separate the first frame 4 from the screening plate 1, and then the user can directly replace the limiting mesh sleeve 5, which has the ability to limit the gravel.

[0036] In summary, for this gravel screening device for bridge construction, by setting the limiting mesh sleeve 5, the limiting mesh sleeve 5 can cover the periphery of the top of the screening plate 1 to prevent the gravel from flying outwards and falling down during the screening process, solving the problem that the sieve plate lacks a structure for limiting the gravel, resulting in the gravel vibrating back and forth during the vibration screening process. At this time, the gravel will fall from the front and rear sides of the sieve plate, and some of the gravel that has not been screened will directly fall below, thus affecting the screening quality.

[0037] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0038] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A gravel sieving device for road and bridge construction, comprising a sieving plate (1), a bracket (2) and a vibration motor (3), characterized in that: The top of the vibration motor (3) is fixedly connected to both sides of the bottom of the sieve plate (1). The inner side of the bracket (2) is slidably connected to both sides of the left and right sides of the sieve plate (1). A first frame (4) is provided on the top of the sieve plate (1). A limit mesh sleeve (5) is fixedly connected to the top of the first frame (4). A second frame (6) is fixedly connected to the top of the limit mesh sleeve (5). Positioning components (7) are fixedly connected to the four corners of the bottom of the first frame (4). A connecting mechanism (8) is fixedly connected to the outer side of the top of the bracket (2).

2. The gravel sieving device for road and bridge construction according to claim 1, wherein: The positioning component (7) includes a positioning insertion rod (71). The top of the positioning insertion rod (71) is fixedly connected to the four corners of the bottom of the first frame (4). Positioning grooves (72) are provided at the four corners of the top of the sieve plate (1). The positioning insertion rod (71) is inserted into the positioning groove (72).

3. A gravel sieving device for road and bridge construction according to claim 1, characterized in that: The connecting mechanism (8) includes a support plate (81). A mounting plate (82) is embedded in the top of the support plate (81). The inner side of the mounting plate (82) is fixedly connected to both sides of the second frame (6). A bolt (83) is threadedly connected to the top of the mounting plate (82). The mounting plate (82) is fixedly connected to the support plate (81) through the bolt (83).

4. A gravel sieving device for road and bridge construction according to claim 1, characterized in that: Mosaic grooves (9) are provided on both sides of the top of the sieve plate (1). A magnetic strip (10) is arranged inside the mosaic groove (9). The bottom of the magnetic strip (10) is magnetically adsorbed to the bottom of the inner wall of the mosaic groove (9). The top of the magnetic strip (10) is fixedly connected to both sides of the bottom of the first frame (4).

5. The gravel sieving device for road and bridge construction according to claim 3, characterized in that: A rotating block (11) is provided on the top of the bolt (83). The rotating block (11) is welded to the top of the bolt (83).

6. The gravel sieving device for road and bridge construction according to claim 5, characterized in that: Anti-slip grooves (12) are provided on the surface of the rotating block (11). A plurality of anti-slip grooves (12) are provided and are distributed at equal intervals in a ring shape.

7. The gravel sieving device for road and bridge construction according to claim 5, wherein: An anti-loss rope (13) is fixedly connected to the top of the rotating block (11). One end of the anti-loss rope (13) away from the rotating block (11) is fixedly connected to the outer side of the support plate (81).

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