Building gravel screening device

Abstract

The building gravel screening device comprises a base, a box body is rotationally installed at the upper end of the base, a motor box is fixedly installed on the upper end face of the base, an output shaft at the upper end of the motor box is rotationally connected with the periphery of the box body through a gear and a transmission belt, and a feeding pipe is fixedly installed in the middle of the upper end face of the box body. A plurality of screens matched with the height of an inner cavity of the box body are arranged in the box body at equal intervals, discharging pipes are distributed between the inner wall of the box body and the screens, between every two adjacent screens and on the lower side of the screen in the middle of the box body, the multiple discharging pipes are connected with the lower end of the box body, and a concave cavity is formed in the outer side of the base; and a limiting rotating ring is fixedly installed on the upper end face of the concave cavity, a limiting rotating block matched with the limiting rotating ring in a rotating mode is fixedly installed on the periphery of the box body, the lower ends of the multiple discharging pipes are arranged in the concave cavity, and the gravel screening effect can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field related to construction engineering, in particular to a construction gravel screening device. Background Art

[0002] In construction engineering operations, when it is necessary to proportion building materials such as sand and gravel aggregates, the crushed stones need to be screened according to the particle size. However, the internal screen aperture of the existing screening device is relatively single. If the sand and gravel aggregates need to be screened according to different sizes, the screens with different meshes need to be repeatedly replaced, which will affect the efficiency of the screening of the sand and gravel aggregates to a certain extent. For example, the patent document with the publication number CN220048923U in the prior art provides a crushed stone screening machine for a sand and gravel aggregate line; the device can screen and collect the crushed stones in multiple stages by means of a plurality of screening plates at the upper end of the inclined screening mechanism and a collection box at the lower side of each screening plate;

[0003] However, multiple screen plates of the device are in the same space, and the device drives the screen plates to vibrate up and down through a motor and a cam, which will undoubtedly cause small particles of gravel to splash around in the device, and then cause these small particles of gravel to pass through each screen plate into each collection box, which will undoubtedly reduce the screening effect of the device. For this reason, we propose a construction gravel screening device. Utility Model Content

[0004] The purpose of the utility model is to provide a construction gravel screening device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a building gravel screening device, comprising a base, a box body rotatably mounted on the upper end of the base, a motor box fixedly mounted on the upper end surface of the base, an output shaft at the upper end of the motor box rotatably connected to the periphery of the box body through gears and transmission belts, a feed pipe fixedly mounted in the middle of the upper end surface of the box body, a plurality of screens matching the height of the inner cavity of the box body are evenly spaced inside the box body, discharge pipes are distributed between the inner wall of the box body and the screen, between adjacent screens and on the lower side of the screen in the middle of the box body, and a plurality of discharge pipes are interconnected with the lower end of the box body.

[0006] Preferably, a concave cavity is opened on the outer side of the base, a limit rotating ring is fixedly installed on the upper end surface of the concave cavity, a limit rotating block rotatably matched with the limit rotating ring is fixedly installed on the outer periphery of the box body, and the lower ends of the plurality of discharge pipes are arranged in the concave cavity.

[0007] Preferably, the upper end surface of the box body is provided with a plurality of insertion cavities matching the positions of the discharge pipes, and the screens are respectively inserted and installed in the insertion cavities, and limit frames are fixedly installed on the inner and outer sides of the lower end of the insertion cavity, and the limit frames on the inner and outer sides are in contact with the two sides of the screen.

[0008] Preferably, a positioning plate is installed on the periphery of the feed pipe, the positioning plate is in contact with the upper ends of each screen, and a threaded sleeve that cooperates with the outer thread of the feed pipe is rotatably installed on the upper end surface of the positioning plate.

[0009] Preferably, a limiting slide groove is provided on the outer wall surface of the feed pipe, and a limiting sliding block which slidably cooperates with the limiting slide groove is fixedly mounted on the inner end surface of the positioning plate.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The invention relates to a construction gravel screening device, in which a plurality of screens are arranged in a box body. When the motor box drives the box body to rotate, the gravel inside the box body can be screened step by step through the plurality of screens, and the screened gravel can be recovered separately in conjunction with various discharge pipes. Compared with the original device, the present device can significantly improve the screening effect of gravel.

[0012] The construction gravel screening device is provided with an inserting cavity, and the screen can be installed and disassembled. The screen can be positioned in a box body with a positioning plate to prevent the screen from loosening in the box body. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall external structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the overall internal structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of the base of the utility model;

[0016] Figure 4 This is a schematic diagram of the internal structure of the box body of the utility model;

[0017] Figure 5 It is a schematic diagram of the internal split structure of the screen of the utility model.

[0018] In the figure:

[0019] 1. Base; 11. Box; 12. Motor box; 13. Concave cavity; 14. Feed pipe; 15. Screen; 16. Discharge pipe; 17. Limiting rotating ring; 18. Limiting rotating block;

[0020] 2. Insertion cavity; 21. Limiting frame; 22. Positioning plate; 23. Threaded sleeve; 24. Limiting slide groove; 25. Limiting slider. DETAILED DESCRIPTION

[0021] 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.

[0022] Example 1

[0023] See also Figure 1-5 The utility model provides a technical solution: a building gravel screening device, including a base 1, a box body 11 is rotatably installed on the upper end of the base 1, a motor box 12 is fixedly installed on the upper end surface of the base 1, the output shaft at the upper end of the motor box 12 is rotatably connected to the outer periphery of the box body 11 through gears and transmission belts, a feed pipe 14 is fixedly installed in the middle of the upper end surface of the box body 11, a plurality of screens 15 that match the height of the inner cavity of the box body 11 are evenly spaced in the box body 11, and discharge pipes 16 are distributed between the inner wall of the box body 11 and the screens 15, between adjacent screens 15 and under the screens 15 in the middle of the box body 11, and the plurality of discharge pipes 16 are interconnected with the lower end of the box body 11.

[0024] Working principle: When screening the gravel, the gravel to be screened is injected into the middle of the inner cavity of the box 11 through the feed pipe 14, and the servo motor inside the motor box 12 is started to drive the box 11 to rotate forward and reverse continuously in the base 1. The centrifugal force generated by the rotation of the box 11 can continuously throw the gravel out according to the aperture of each screen 15, so as to achieve the effect of screening the gravel, and the discharge pipes 16 on the lower side of the box 11 are opened one by one, so that the screened gravel can be classified and recycled.

[0025] Example 2

[0026] A concave cavity 13 is formed on the outer side of the base 1 , a limit rotating ring 17 is fixedly installed on the upper end surface of the concave cavity 13 , a limit rotating block 18 rotatably matched with the limit rotating ring 17 is fixedly installed on the outer periphery of the box body 11 , and the lower ends of multiple discharge pipes 16 are arranged in the concave cavity 13 .

[0027] The recessed cavity 13 is provided to facilitate installation of a collection frame or other recovery device on the lower side of the box body 11, and the classified gravel can be recovered by opening the discharge pipe 16;

[0028] Through the rotational cooperation between the limiting rotation ring 17 and the limiting rotation block 18 , the movement direction of the box body 11 can be limited in the base 1 .

[0029] Example 3

[0030] A plurality of insertion cavities 2 matching the positions of the discharge pipes 16 are provided on the upper end surface of the box body 11, and the screens 15 are respectively inserted and installed in the insertion cavities 2, and the inner and outer sides of the lower end of the insertion cavity 2 are fixedly installed with limit frames 21, and the inner and outer limit frames 21 are in contact with the two sides of the screens 15, and a positioning plate 22 is inserted and installed on the periphery of the feed pipe 14, and the positioning plate 22 is in contact with the upper ends of the screens 15, and a threaded sleeve 23 matching the outer thread of the feed pipe 14 is rotatably installed on the upper end surface of the positioning plate 22, and a limiting slide groove 24 is provided on the outer wall surface of the feed pipe 14, and a limiting slider 25 matching the limiting slide groove 24 is fixedly installed on the inner end surface of the positioning plate 22.

[0031] An insertion cavity 2 is provided, and each screen 15 can be installed into a corresponding position of the inner cavity of the box body 11 according to the aperture of the screen 15 through the plug-in cooperation between the screen 15 and each insertion cavity 2, and then the positioning plate 22 is installed on the upper end of the feed pipe 14 through the plug-in cooperation between the limiting slider 25 and the limiting slide groove 24. When the threaded sleeve 23 contacts the feed pipe 14, the threaded sleeve 23 is rotated, and the threaded sleeve 23 and the positioning plate 22 are driven to move downward through the thread cooperation between the threaded sleeve 23 and the feed pipe 14, so that the positioning plate 22 contacts the upper end of the screen 15, and then each screen 15 can be positioned in the box body 11;

[0032] Among them, a limit frame 21 is set to connect the upper and lower ends of the inner cavity of the box body 11 to each other, and the screen 15 can be limited in the box body 11 through the fitting effect of the inner and outer limit frames 21 respectively with the inner and outer sides of the screen 15 to avoid the screen 15 from twisting, thereby ensuring the screening effect of the screen 15 on the gravel.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A construction gravel screening device, comprising a base (1), characterized in that: A box body (11) is rotatably mounted on the upper end of the base (1), a motor box (12) is fixedly mounted on the upper end surface of the base (1), an output shaft at the upper end of the motor box (12) is rotatably connected to the outer periphery of the box body (11) through gears and a transmission belt, a feed pipe (14) is fixedly mounted in the middle of the upper end surface of the box body (11), a plurality of screens (15) matching the height of the inner cavity of the box body (11) are arranged at equal intervals in the box body (11), discharge pipes (16) are distributed between the inner wall of the box body (11) and the screens (15), between adjacent screens (15) and under the screens (15) in the middle of the box body (11), and the plurality of discharge pipes (16) are mutually connected to the lower end of the box body (11).

2. A construction rubble screening device according to claim 1, characterized in that: A concave cavity (13) is provided on the outer side of the base (1), a limit rotation ring (17) is fixedly installed on the upper end surface of the concave cavity (13), a limit rotation block (18) that is rotatably matched with the limit rotation ring (17) is fixedly installed on the outer periphery of the box body (11), and the lower ends of the plurality of discharge pipes (16) are arranged in the concave cavity (13).

3. A construction gravel screening device according to claim 1, characterized in that: The upper end surface of the box body (11) is provided with a plurality of insertion cavities (2) which are matched with the positions of the respective discharge pipes (16); the respective screens (15) are respectively inserted and installed in the respective insertion cavities (2); and the lower ends of the insertion cavities (2) are fixedly installed with limit frames (21) on both inner and outer sides, and the limit frames (21) on both inner and outer sides are in contact with both sides of the screens (15).

4. A construction gravel screening device according to claim 3, characterized in that: A positioning plate (22) is installed on the periphery of the feed pipe (14) in a plug-in manner. The positioning plate (22) contacts the upper ends of the screens (15), and a threaded sleeve (23) is rotatably installed on the upper end surface of the positioning plate (22) and is matched with the thread of the periphery of the feed pipe (14).

5. A construction gravel screening device according to claim 4, characterized in that: The outer wall surface of the feed pipe (14) is provided with a limit slide groove (24), and the inner end surface of the positioning plate (22) is fixedly mounted with a limit slide block (25) that slidably cooperates with the limit slide groove (24).

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