Sand screening device for construction site

Abstract

The utility model provides a sand screening device for construction sites, which relates to the field of sand screening for construction sites and comprises a sand screening machine, a first screening net frame and a second screening net frame, the first screening net frame and the second screening net frame are inserted into the inner side wall of the sand screening machine, and transmission blocks are movably connected to the left side end and the right side end of the sand screening machine. A transmission column is connected to the inner side of the first screening net frame and the inner side of the second screening net frame in a penetrating mode, transmission blocks are connected to the left end and the right end of the transmission column in a threaded mode, an electric heating rod is installed in the transmission column, the column face of the transmission column is sleeved with a heat conduction scraping plate, a rubber sleeve is bonded to the scraping plate face of the upper end of the heat conduction scraping plate, and a cleaning brush plate is connected to the lower end of the heat conduction scraping plate in a threaded mode. The sand screening device solves the problem that in the prior art, damp sand on an outdoor construction site is prone to being pasty to block the sand screening plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to building site sand screening technical field, concretely relates to a sand screening device for building site. BACKGROUND

[0002] The sand screening equipment is a kind of instrument currently necessary on building construction site, and currently in building construction site, sand is often screened before concrete mixing, to avoid that sand is mixed with large impurities, and also need to guarantee the fineness of sand when removing stone and other sundries, after searching, prior art (announcement number:CN202122793635.X) a sand screening device for building site, wherein, "the sand screening device for building site is through the push plate being set, sand falling on the first sand screening plate and the second sand screening plate is handled by the action of the pneumatic cylinder, the pneumatic cylinder drives push plate to concentrate sand not filtered to the sundry collecting box and concentrate processing, sand is more delicate by screening multiple times, solve the problem that the existing sand screening device is low in efficiency, and manual labor is wasted, cannot meet the large batch demand of sand and soil screening of building site", but the sand material of existing technology is prone to paste and block the sand screening plate on outdoor site. UTILITARY MODEL CONTENTS

[0003] To overcome the defects existing in prior art, a sand screening device for building site is provided to solve the problem that the sand material of prior art is prone to paste and block the sand screening plate on outdoor site.

[0004] To achieve the above object, a sand screening device for building site is provided, which comprises: a sand screening machine, a first sub-screening net frame and a second sub-screening net frame, the first sub-screening net frame and the second sub-screening net frame are inserted into the inner side wall of the sand screening machine,

[0005] The left and right side ends of the sand screening machine are movably connected with transmission blocks, the first sub-screening net frame and the second sub-screening net frame are connected with transmission columns penetratingly, the left and right ends of the transmission column are screwed with transmission blocks, the transmission column is internally provided with an electric heating rod, the transmission column is sleeved with a heat-conducting scraper on the column surface, the upper end of the heat-conducting scraper is bonded with a rubber sleeve on the scraper surface, and the lower end of the heat-conducting scraper is screwed with a cleaning brush plate.

[0006] Further, a vibration motor is installed on the left side end of the sand screening machine, a movable base is slidably connected to the front and rear sides of the sand screening machine, and rollers are installed on the front and rear sides of the movable base.

[0007] Further, the upper surface of the movable base is connected to the lower surface of the sand screening machine through spring struts, a sand outlet is formed in the right side surface of the sand screening machine, and a sand guide plate is fixed to the lower end of the sand outlet.

[0008] Further, the left end of the transmission column is screwed with the left transmission block through a connecting stud, and a transmission assembly is mounted on the outer surface of the left transmission block.

[0009] Further, the right end of the transmission column is screwed with the right transmission block through a limiting stud head, and a rotating disc is fixed to the left side surface of the transmission block.

[0010] Further, the first and second sub-screening net frames are welded with plug-in blocks on the front and rear side surfaces, and the first and second sub-screening net frames are contacted with cleaning brush plates on the upper arc-shaped net surfaces.

[0011] Further, the transmission column, the transmission block, the electric heating rod, the heat-conducting scraper and the cleaning brush plate constitute a net surface cleaning mechanism of the sand screening machine.

[0012] The building site sand screening device has the advantages that the heat-conducting scraper fixed in the sub-screening net frame is driven to rotate by the rotating disc, the rubber end and the lower end cleaning brush plate of the heat-conducting scraper on the surface of the transmission column are used to scrape and clean the paste-like sand material on the net surface of the sub-screening net frame, the heat of the heat-conducting scraper is transferred to the paste-like sand material, the moisture in the damp sand material in the sub-screening net frame is reduced, the paste-like sand material accumulated and adhered on the sub-screening net surface is cleaned and scraped at the same time of the vibration sand screening, the paste-like sand material is prevented from blocking the net surface and affecting the sand material circulation, and the sand screening efficiency of the sand screening device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is a front view structural schematic diagram of the building site sand screening device.

[0014] Fig. 2 It is a front view structural schematic diagram of the building site sand screening device.

[0015] Fig. 3 It is a front view structural schematic diagram of the second sub-screening net frame.

[0016] Fig. 4 It is a side view structural schematic diagram of the second sub-screening net frame.

[0017] In the drawing: 1, sand screening machine; 11, vibration motor; 12, transmission block; 13, sand guide plate; 14, rotating disc; 15, transmission assembly; 16, sand outlet; 2, movable base; 21, roller; 22, spring support; 3, first sub-screening net frame; 31, second sub-screening net frame; 32, plug-in block; 4, transmission column; 41, limiting stud head; 42, connecting stud; 43, electric heating rod; 5, heat-conducting scraper; 51, cleaning brush plate; 52, rubber sleeve. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0019] Referring to Figs. 1 to 4 The utility model provides a sand screening device for construction site, include: sand screening machine 1, first sub screen frame 3 and second sub screen frame 31, the inside wall of sand screening machine 1 is inserted with first sub screen frame 3 and second sub screen frame 31,

[0020] Sand screening machine 1 left and right side end all movably connected with transmission block 12, first sub screen frame 3 and second sub screen frame 31 inside are connected with transmission column 4, transmission column 4 left and right end is screwed with transmission block 12, transmission column 4 inside is installed with electric heating rod 43, transmission column 4 column surface is sleeved with heat conduction scraper 5, heat conduction scraper 5 upper end scraper face is bonded with rubber sleeve 52, heat conduction scraper 5 lower end is screwed with cleaning brush plate 51.

[0021] When the sand material is needed in the construction site, first sand screening machine 1 is moved to the appropriate position, makes sand screening machine 1 vibrate, sand and stone are poured into first sub screen frame 3, sand material is vibrated to pass through first sub screen frame 3 and second sub screen frame 31, and falls from sand guide plate 13, when the discharging speed of sand guide plate 13 slows down, manually rotates rotating disc 15, makes transmission column 4 in first sub screen frame 3 and second sub screen frame 31 rotate, drives heat conduction scraper 5 to rotate, makes rubber end of heat conduction scraper 5 and lower end cleaning brush plate 51 scrape and clean screen frame screen surface paste sand, and electric heating rod 43 heats to reduce the moisture of paste sand in screen frame.

[0022] In the embodiment, vibration motor 11 is installed on the left side end of sand screening machine 1, movable base 2 is slidably connected to the front and back sides of sand screening machine 1, and rollers 21 are installed on the front and back sides of movable base 2. The upper surface of movable base 2 is connected to the lower surface of sand screening machine 1 through spring support 22, the right side surface of sand screening machine 1 is provided with sand outlet 16, and sand guide plate 13 is fixed to the lower end of sand outlet 16.

[0023] As a preferred implementation, vibration motor 11 facilitates the up-and-down vibration of sand screening machine 1, and the entered sand and stone is discharged from sand guide plate 13 after being screened by first sub screen frame 3 and second sub screen frame 31. The sand and stone left in first sub screen frame 3 and second sub screen frame 31 can be poured out by taking out the screen frame. Movable base 2 facilitates the daily movement of sand screening machine 1 on the construction site.

[0024] In the embodiment, the left end of the transmission column 4 is screwed with the left transmission block 12 through the connecting stud 42, and the outer surface of the left transmission block 12 is provided with the transmission assembly 15. The right end of the transmission column 4 is screwed with the right transmission block 12 through the limiting stud head 41, and the left side surface of the transmission block 12 is fixed with the rotating disc 14.

[0025] As a preferred embodiment, the transmission column 4 is connected with the transmission blocks 12 on both sides, so that the heat-conducting scraper 5 sleeved on the column surface is arranged inside the screen frame, the heat-conducting scraper 5 in the first screen frame 3 and the second screen frame 31 is driven to rotate by rotating the rotating disc 14 manually, so as to clean the screen surface of the screen frame being screened.

[0026] In the embodiment, the front and back side surfaces of the first screen frame 3 and the second screen frame 31 are welded with the plug-in blocks 32, and the upper arc-shaped screen surface of the first screen frame 3 and the second screen frame 31 is in contact with the cleaning brush plate 51.

[0027] As a preferred embodiment, the cleaning brush plate 51 and the rubber sleeve 52 of the heat-conducting scraper 5 clean and scrape the screen surface of the screen frame respectively, so as to move and disperse the paste-like sand material accumulated and blocked on the screen surface, and reduce the water content in the sand material in contact with the heat-conducting scraper 5.

[0028] In the embodiment, the transmission column 4, the transmission block 12, the electric heating rod 43, the heat-conducting scraper 5 and the cleaning brush plate 51 constitute the screen surface cleaning mechanism of the sand screening machine 1.

[0029] As a preferred embodiment, the screen surface cleaning mechanism of the sand screening machine 1 facilitates vibration screening and cleaning and scraping of the paste-like sand material accumulated and attached on the screen surface of the screen frame, reduces the water content in the damp sand material in the screen frame, avoids the paste-like sand material from blocking the screen surface and affecting the flow of the sand material, and improves the sand screening efficiency of the sand screening device.

[0030] The sand screening device for construction sites can effectively solve the problem that the damp sand material on the outdoor site is easily paste-like and blocks the screen plate in the prior art, reduce the water content in the damp sand material in the screen frame, facilitate vibration screening and cleaning and scraping of the paste-like sand material accumulated and attached on the screen surface of the screen frame, avoid the paste-like sand material from blocking the screen surface and affecting the flow of the sand material, improve the sand screening efficiency of the sand screening device, and is suitable for the sand screening device for construction sites.

[0031] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A sand screening device for a construction site, comprising: Sand screening machine (1), first sub-screening net frame (3) and second sub-screening net frame (31), the inside wall of the sand screening machine (1) is inserted with the first sub-screening net frame (3) and the second sub-screening net frame (31), characterized in that: The left and right sides of the sand screening machine (1) are movably connected with transmission blocks (12), the inside of the first sub-screening net frame (3) and the second sub-screening net frame (31) is connected with a transmission column (4) penetratingly, the left and right ends of the transmission column (4) are screwed with transmission blocks (12), the inside of the transmission column (4) is installed with an electric heating rod (43), the column surface of the transmission column (4) is sleeved with a heat-conducting scraper (5), the upper end of the heat-conducting scraper (5) is bonded with a rubber sleeve (52), and the lower end of the heat-conducting scraper (5) is screwed with a cleaning brush plate (51).

2. A sand screening device for construction sites as claimed in claim 1 wherein, The left side of the sand screening machine (1) is installed with a vibration motor (11), the front and rear sides of the sand screening machine (1) are slidably connected with a mobile base (2), and the front and rear sides of the mobile base (2) are installed with rollers (21).

3. A sand screening device for construction sites as claimed in claim 2 wherein, The upper surface of the mobile base (2) is connected with the lower surface of the sand screening machine (1) through spring struts (22), the right side of the sand screening machine (1) is provided with a sand outlet (16), and the lower end of the sand outlet (16) is fixed with a sand guide plate (13).

4. A sand screening device for construction sites as claimed in claim 1, wherein, The left end of the transmission column (4) is screwed with the left transmission block (12) through a connecting stud (42); and the outer surface of the left transmission block (12) is installed with a transmission assembly (15).

5. A sand screening device for construction sites as claimed in claim 4 wherein, The right end of the transmission column (4) is screwed with the right transmission block (12) through a limiting stud head (41), and the left side of the transmission block (12) is fixed with a rotating disc (14).

6. A sand screening device for construction sites as claimed in claim 1, wherein, The front and rear sides of the first sub-screening net frame (3) and the second sub-screening net frame (31) are welded with plug-in blocks (32), and the upper arc-shaped net surface of the first sub-screening net frame (3) and the second sub-screening net frame (31) is contacted with a cleaning brush plate (51).

7. A sand screening device for construction sites as claimed in claim 1, wherein, The transmission column (4), the transmission block (12), the electric heating rod (43), the heat-conducting scraper (5) and the cleaning brush plate (51) constitute a net surface cleaning mechanism of the sand screening machine (1).

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