Sand screening device for bridge construction

Abstract

The utility model discloses a sand screening device for bridge construction in the field of sand screening devices, which comprises a screening box, a first screening plate is transversely arranged at the top of an inner cavity of the screening box, and a second screening plate is transversely arranged at the bottom of the inner cavity of the screening box. According to the sand screening device, the electric push rod is started through the external controller, then sand needing to be screened is conveyed into the screening box through the feeding pipe, the sand sequentially falls onto the first screening plate and the second screening plate, the sand can be sequentially filtered through meshes of the first screening plate and the second screening plate, impurities in the sand can be conveniently blocked, and the screening efficiency is improved. Meanwhile, an electric push rod drives a moving block to move, the moving block drives a first screening plate and a second screening plate to reciprocate up and down, during vibration, meshes of the second screening plate and the first screening plate can screen sand, and large particles and impurities are retained at the tops of the first screening plate and the second screening plate; and the screened sand enters the discharging bin and the discharging pipe.

Description

Technical Field

[0001] The utility model relates to the field of sand screening devices, in particular to a sand screening device for bridge construction. Background Art

[0002] Bridge construction is the process of building a bridge according to the design content; it mainly refers to bridge construction technology and construction organization, construction management, construction quality and other contents. Construction refers to the production activities in the implementation stage of engineering construction. It is the construction process of various buildings. It can also be said to be the process of turning various lines on the design drawings into real objects at designated locations. Bridge construction requires screening of sand to facilitate its later use.

[0003] The existing sand screening device for bridge construction has poor screening effect and is not convenient for later cleaning. The impurities in the sand will affect the later processing and cannot meet the use requirements. Therefore, those skilled in the art provide a sand screening device for bridge construction to solve the problems raised in the above background technology.

[0004] Therefore, it is necessary to provide a sand screening device for bridge construction to solve the above-mentioned technical problems. The disclosure of the information in this background technology part is only intended to increase the understanding of the overall background of the utility model, and is not necessarily regarded as an admission or suggestion in any form that the information constitutes the prior art that is already known to the general technicians in this field. Utility Model Content

[0005] The purpose of the utility model is to provide a sand screening device for bridge construction to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a sand screening device for bridge construction, comprising a screening box, a first sieve plate is horizontally arranged on the top of the inner cavity of the screening box, a second sieve plate is horizontally arranged on the bottom of the inner cavity of the screening box, the second sieve plate is arranged at the bottom of the first sieve plate, electric push rods are installed on the top and bottom of the rear side of the screening box, a moving block is installed on the inner side of the electric push rod, the front side of the moving block passes through the top and bottom of the inner cavity of the screening box, the inner side of the moving block is fixed to the back sides of the first sieve plate and the second sieve plate, a telescopic rod is installed on the inner side of the moving block, a mounting seat is installed on the front side of the telescopic rod, the front side of the mounting seat is fixed to the back side of the screening box, the bottom of the screening box is connected to a discharge bin, the bottom of the discharge bin is connected to a discharge pipe, and a valve is arranged on the front side of the discharge pipe.

[0007] As a further solution of the utility model: the top of the screening box is connected with a feed pipe, and the top and bottom of both sides of the front of the screening box are provided with box doors through hinges, and a handle is installed on the inner side of the front of the box door. The electric push rod is started by an external controller, and then the sand to be screened is transported into the screening box through the feed pipe, and the sand falls on the first sieve plate and the second sieve plate in turn. The mesh holes of the first sieve plate and the second sieve plate can filter the sand in turn, which is convenient for blocking impurities in the sand.

[0008] As a further solution of the utility model: slide grooves are provided on the top and bottom of both sides of the front inner cavity of the screening box, and the inner cavity of the slide groove is slidably connected with a slider, and the back of the slider is respectively fixed to the two sides of the front of the first screen plate and the second screen plate, and at the same time, the electric push rod drives the moving block to move, and the moving block drives the first screen plate and the second screen plate to reciprocate up and down, and the mesh holes of the second screen plate and the first screen plate can screen the sand during vibration.

[0009] As a further solution of the utility model: the top and bottom of the rear side of the screening box are provided with through grooves used in conjunction with moving blocks, large particles and impurities are retained on the top of the first sieve plate and the second sieve plate, and the sand after screening enters the discharge bin and the discharge pipe. The box door can be opened to clean the impurities on the first sieve plate and the second sieve plate, which will not affect the subsequent screening of the sand.

[0010] As a further solution of the utility model: support columns are installed on both sides of the screening box, and mounting blocks are installed at the bottom of the support columns. The first sieve plate and the second sieve plate drive the sliding block to slide in the inner cavity of the slide groove, which effectively prevents the first sieve plate and the second sieve plate from tilting during reciprocating motion, and increases the stability of the first sieve plate and the second sieve plate during reciprocating motion.

[0011] As a further solution of the utility model: mounting holes are opened on both sides of the top of the mounting block, reinforcing blocks are installed at the bottom of both sides of the support column, and the bottom of the reinforcing block is fixed to the top of the mounting block. The screening box is supported and fixed by the support column and the mounting block, which increases the stability of the screening box during use.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. In the utility model, the electric push rod is started by an external controller, and then the sand to be screened is transported to the screening box through the feed pipe, and the sand falls on the first screen plate and the second screen plate in turn. The mesh holes of the first screen plate and the second screen plate can filter the sand in turn, which is convenient for blocking impurities in the sand. At the same time, the electric push rod drives the moving block to move, and the moving block drives the first screen plate and the second screen plate to reciprocate up and down. During vibration, the mesh holes of the second screen plate and the first screen plate can screen the sand, and large particles and impurities are retained on the top of the first screen plate and the second screen plate. After screening, the sand enters the discharge bin and the discharge pipe. The box door can be opened to clean up the impurities on the first screen plate and the second screen plate, which will not affect the screening of the sand in the later stage.

[0014] 2. In the utility model, the first screen plate and the second screen plate drive the slider to slide in the inner cavity of the slide groove, which effectively prevents the first screen plate and the second screen plate from tilting during the reciprocating motion, increases the stability of the first screen plate and the second screen plate during the reciprocating motion, and supports and fixes the screening box through the support column and the mounting block, thereby increasing the stability of the screening box during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a cross-sectional view of the screening box structure in the utility model;

[0017] Figure 3 It is a left side sectional view of the screening box structure in the utility model.

[0018] In the figure: 1. Screening box; 2. First screen plate; 3. Second screen plate; 4. Electric push rod; 5. Moving block; 6. Telescopic rod; 7. Mounting seat; 8. Discharge bin; 9. Discharge pipe; 10. Box door; 11. Slide; 12. Support column; 13. Mounting block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figures 1 to 3In the embodiment of the utility model, a sand screening device for bridge construction comprises a screening box 1, a first sieve plate 2 is transversely arranged on the top of the inner cavity of the screening box 1, a second sieve plate 3 is transversely arranged on the bottom of the inner cavity of the screening box 1, the second sieve plate 3 is arranged at the bottom of the first sieve plate 2, and an electric push rod 4 is installed on the top and bottom of the rear side of the screening box 1, a moving block 5 is installed on the inner side of the electric push rod 4, the front of the moving block 5 passes through the top and bottom of the inner cavity of the screening box 1, the inner side of the moving block 5 is fixed to the back of the first sieve plate 2 and the second sieve plate 3, a telescopic rod 6 is installed on the inner side of the moving block 5, a mounting seat 7 is installed on the front of the telescopic rod 6, and the front of the mounting seat 7 is fixed to the back of the screening box 1, the bottom of the screening box 1 is connected with a discharge bin 8, the bottom of the discharge bin 8 is connected with a discharge pipe 9, and a valve is arranged on the front of the discharge pipe 9.

[0021] Among them, the top of the screening box 1 is connected with a feed pipe, and the top and bottom of both sides of the front of the screening box 1 are provided with box doors 10 through hinges, and a handle is installed on the inner side of the front of the box door 10. The electric push rod 4 is started by the external controller, and then the sand to be screened is transported to the screening box 1 through the feed pipe, and the sand falls on the first sieve plate 2 and the second sieve plate 3 in turn. The meshes of the first sieve plate 2 and the second sieve plate 3 can filter the sand in turn, which is convenient for blocking impurities in the sand;

[0022] Among them, the top and bottom of both sides of the front inner cavity of the screening box 1 are provided with a slide groove 11, the inner cavity of the slide groove 11 is slidably connected with a slider, and the back of the slider is respectively fixed to both sides of the front of the first screen plate 2 and the second screen plate 3, and at the same time, the electric push rod 4 drives the moving block 5 to move, and the moving block 5 drives the first screen plate 2 and the second screen plate 3 to reciprocate up and down, and the mesh of the second screen plate 3 and the first screen plate 2 can screen the sand during vibration;

[0023] Among them, the top and bottom of the rear side of the screening box 1 are both provided with through grooves used in conjunction with the moving block 5, and large particles and impurities are retained on the top of the first screen plate 2 and the second screen plate 3. After screening, the sand enters the discharge bin 8 and the discharge pipe 9. The box door 10 is opened to clean the impurities on the first screen plate 2 and the second screen plate 3, which will not affect the screening of the sand in the later stage;

[0024] Among them, support columns 12 are installed on both sides of the screening box 1, and mounting blocks 13 are installed at the bottom of the support columns 12. The first screen plate 2 and the second screen plate 3 drive the slider to slide in the inner cavity of the slide groove 11, which effectively prevents the first screen plate 2 and the second screen plate 3 from tilting when they reciprocate, and increases the stability of the first screen plate 2 and the second screen plate 3 when they reciprocate;

[0025] Among them, mounting holes are opened on both sides of the top of the mounting block 13, and reinforcing blocks are installed at the bottom of both sides of the support column 12, and the bottom of the reinforcing block is fixed to the top of the mounting block 13. The support column 12 and the mounting block 13 support and fix the screening box 1, which increases the stability of the screening box 1 during use.

[0026] The working principle of the utility model is as follows: the electric push rod 4 is started by an external controller, and then the sand to be screened is transported to the screening box 1 through the feed pipe, and the sand falls on the first screen plate 2 and the second screen plate 3 in turn. The meshes of the first screen plate 2 and the second screen plate 3 can filter the sand in turn, which is convenient for blocking impurities in the sand. At the same time, the electric push rod 4 drives the moving block 5 to move, and the moving block 5 drives the first screen plate 2 and the second screen plate 3 to reciprocate up and down. During vibration, the meshes of the second screen plate 3 and the first screen plate 2 can screen the sand, and large particles and impurities are retained in the first screen plate 2 and At the top of the second sieve plate 3, the sand after screening enters the discharge bin 8 and the discharge pipe 9, and the box door 10 is opened to clean the impurities on the first sieve plate 2 and the second sieve plate 3, which will not affect the screening of sand in the later stage. The first sieve plate 2 and the second sieve plate 3 drive the slider to slide in the inner cavity of the slide groove 11, which effectively prevents the first sieve plate 2 and the second sieve plate 3 from tilting during the reciprocating motion, thereby increasing the stability of the first sieve plate 2 and the second sieve plate 3 during the reciprocating motion, and supports and fixes the screening box 1 through the support column 12 and the mounting block 13, thereby increasing the stability of the screening box 1 during use.

[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0028] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A sand screening device for bridge construction, comprising a screening box (1), characterized in that: A first sieve plate (2) is transversely arranged at the top of the inner cavity of the screening box (1), a second sieve plate (3) is transversely arranged at the bottom of the inner cavity of the screening box (1), the second sieve plate (3) is arranged at the bottom of the first sieve plate (2), electric push rods (4) are installed at the top and bottom of the rear side of the screening box (1), a moving block (5) is installed on the inner side of the electric push rod (4), the front side of the moving block (5) passes through the top and bottom of the inner cavity of the screening box (1), and the moving block (5) is installed at the bottom of the inner cavity of the screening box (1). The inner side of the moving block (5) is fixed to the back sides of the first sieve plate (2) and the second sieve plate (3); a telescopic rod (6) is installed on the inner side of the moving block (5); a mounting seat (7) is installed on the front side of the telescopic rod (6); the front side of the mounting seat (7) is fixed to the back side of the screening box (1); the bottom of the screening box (1) is connected to a discharge bin (8); the bottom of the discharge bin (8) is connected to a discharge pipe (9); a valve is provided on the front side of the discharge pipe (9).

2. A sand screening device for bridge construction according to claim 1, characterized in that: The top of the screening box (1) is connected to a feed pipe, and the top and bottom of both sides of the front of the screening box (1) are provided with box doors (10) through hinges, and a handle is installed on the inner side of the front of the box door (10).

3. The sand screening device for bridge construction according to claim 1 is characterized by: The top and bottom of both sides of the front inner cavity of the screening box (1) are provided with slide grooves (11), the inner cavity of the slide groove (11) is slidably connected with a slider, and the back of the slider is respectively fixed to both sides of the front of the first screen plate (2) and the second screen plate (3).

4. The sand screening device for bridge construction according to claim 1 is characterized by: The top and bottom of the rear side of the screening box (1) are both provided with through grooves for use with the moving block (5).

5. The sand screening device for bridge construction according to claim 1 is characterized by: Support columns (12) are installed on both sides of the screening box (1), and mounting blocks (13) are installed at the bottoms of the support columns (12).

6. A sand screening device for bridge construction according to claim 5, characterized in that: Mounting holes are provided on both sides of the top of the mounting block (13), and reinforcing blocks are installed on the bottoms of both sides of the support column (12), and the bottoms of the reinforcing blocks are fixed to the top of the mounting block (13).

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