阅读说明：本技术 一种建筑施工用沙子筛选装置 (Sand sieving mechanism for construction ) 是由 李品莉 代云芬 于 2019-10-19 设计创作，主要内容包括：本发明涉及建筑机械领域,具体是一种建筑施工用沙子筛选装置,包括箱体,箱体的下端设置有支柱,支柱的下端设置有循环箱,箱体的内部设置有若干倾斜安装的筛网,最上方的筛网右端设置有第一送料管,中间的筛网左端设置有第二送料管,最下方的筛网右端设置有第三送料管,第一送料管、第二送料管和第三送料管的下端均与循环箱连接,所述循环箱的右端设置有循环泵,所述循环泵上设置有循环管,所述循环管的上端与箱体的上端连通,第一送料管的中部设置有第二排料管,第二送料管的中部设置有第三排料管,第三送料管的中部设置有第四排料管。本装置的结构设置,实现每个粒径的循环筛分操作,保证筛分的质量和筛分的效率,实用性强。(The invention relates to the field of construction machinery, in particular to a sand screening device for building construction, which comprises a box body, wherein a support column is arranged at the lower end of the box body, a circulation box is arranged at the lower end of the support column, a plurality of obliquely-installed screen meshes are arranged inside the box body, a first feeding pipe is arranged at the right end of the uppermost screen mesh, a second feeding pipe is arranged at the left end of the middle screen mesh, a third feeding pipe is arranged at the right end of the lowermost screen mesh, the lower ends of the first feeding pipe, the second feeding pipe and the third feeding pipe are connected with the circulation box, a circulation pump is arranged at the right end of the circulation box, a circulation pipe is arranged on the circulation pump, the upper end of the circulation pipe is communicated with the upper end of the box body, a second discharging pipe is arranged at the middle part of the first feeding pipe, a third discharging pipe is arranged at. The structure setting of this device realizes the circulation screening operation of every particle diameter, guarantees the quality of screening and the efficiency of screening, and the practicality is strong.)

1. a sand screening device for building construction comprises a box body (1), wherein a pillar (2) is arranged at the lower end of the box body (1), a circulating box (3) is arranged at the lower end of the pillar (2), a feed hopper (4) is arranged at the upper end of the left side of the box body (1), a first discharging pipe (5) is arranged at the lower end of the left side of the box body (1), a plurality of obliquely installed screen meshes (6) are arranged inside the box body (1), the sand screening device is characterized in that an up-and-down movement mechanism is arranged at the left-and-right symmetry upper end of the box body (1), a lifting plate (11) is arranged at the upper end of the up-and-down movement mechanism, a supporting cover (12) is arranged at the upper side of the lifting plate (11), a motor (13) is arranged at the upper end of the supporting cover (12), a rotating shaft (14) extending into the box body (1) is arranged at the, the screen cloth (6) right-hand member of top is provided with first conveying pipe (16), and screen cloth (6) left end in the middle of is provided with second conveying pipe (17), and screen cloth (6) right-hand member of below is provided with third conveying pipe (18), the lower extreme of first conveying pipe (16), second conveying pipe (17) and third conveying pipe (18) all is connected with circulation case (3), the right-hand member of circulation case (3) is provided with circulating pump (23), be provided with circulating pipe (24) on circulating pump (23), the upper end of circulating pipe (24) and the upper end intercommunication of box (1), the middle part of first conveying pipe (16) is provided with second row material pipe (19), and the middle part of second conveying pipe (17) is provided with third row material pipe (20), and the middle part of third conveying pipe (18) is provided with fourth row material pipe (21).

2. The sand screening device for building construction according to claim 1, wherein the first discharge pipe (5), the second discharge pipe (19), the third discharge pipe (20) and the third discharge pipe (21) are provided with control valves (22).

3. The sand screening apparatus for construction according to claim 2, wherein a control valve (22) is provided at a position below the second discharge pipe (19) on the first feed pipe (16), a control valve (22) is provided at a position below the third discharge pipe (20) on the second feed pipe (17), and a control valve (22) is provided at a position below the fourth discharge pipe (21) on the third feed pipe (18).

4. The sand screening device for building construction according to claim 1 or 3, wherein the up-and-down movement mechanism comprises a first electromagnet (7) installed at the upper end of the box body (1), a telescopic rod (8) is arranged on the upper side of the first electromagnet (7), a second electromagnet (9) is arranged at the upper end of the telescopic rod (8), the second electromagnet (9) is connected with a lifting plate (11), and a return spring (10) is arranged on the outer side of the telescopic rod (8).

5. The sand screening device for building construction according to claim 1, wherein a sound insulation cover (25) is provided outside the motor (13), a heat conduction rod (26) is provided inside the sound insulation cover (25), a heat dissipation plate (27) is provided outside the heat insulation cover (25), one end of the heat conduction rod (26) is connected with the heat dissipation plate (27), and the other end of the heat conduction rod (26) is connected with the motor (13).

6. The sand screening device for building construction according to claim 1 or 5, wherein the supporting cover (12) is provided with a fixing frame (28) inside in an up-down symmetrical manner, and a fixing bearing (29) is arranged between the fixing frame (28) and the rotating shaft (14).

7. The sand screening device for building construction as claimed in claim 6, wherein an air inlet (30) and an air outlet (31) are arranged at the left side and the right side of the mounting cover (12), a fan (32) is arranged on the air outlet (31), a heat conduction cover (34) is arranged at the outer side of the rotating shaft (14), the outer side of the heat conduction cover (34) is connected with the mounting cover (12) through a support rod (33), an air guide shaft (35) is further arranged at the outer side of the heat conduction cover (34), and a spiral air guide blade (36) is arranged on the air guide shaft (35).

Technical Field

The invention relates to the field of construction machinery, in particular to a sand screening device for building construction.

Background

At present, the worker civil engineering in-process, it is comparatively frequent to the use of ready-mixed mortar, the normal use of ready-mixed mortar just can be satisfied to the sand that the moisture content is suitable, when carrying out the sand screening simultaneously, the sand that the water content is many becomes to stick together very easily, often can not be fine when screening, still block up the sieve mesh easily, lead to screening quality to descend, simultaneously at the construction site, adopt to place screen cloth inclined support to the screening of sand, then the manual work is sprinkled the sand to the screen cloth, utilize the sand to roll on the sifter under the action of gravity, reach the purpose of screening, such screening mode is wasted time and energy, the effect is not very good yet.

Chinese patent (publication No. CN 209379410U) discloses a sand stoving screening installation for civil and industrial buildings, the device is greater than the sieve mesh of second screen cloth through the sieve mesh of first screen cloth, and the sieve mesh of second screen cloth is greater than the sieve mesh of third screen cloth to can filter the sand of different volumes, can effectively classify the sand, but the device does not have circulation sieving mechanism, when sieving, when the big sand of diameter is discharged, can take out the little sand of diameter, influence the quality of screening.

Disclosure of Invention

The invention aims to provide a sand screening device for building construction, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

The sand screening device for building construction comprises a box body, wherein a pillar is arranged at the lower end of the box body, a circulating box is arranged at the lower end of the pillar, a feeding hopper is arranged at the upper left end of the box body, a first discharging pipe is arranged at the lower left end of the box body, a plurality of obliquely installed screen meshes are arranged in the box body, an up-and-down movement mechanism is symmetrically arranged at the upper end of the box body in a left-and-right mode, a lifting plate is arranged at the upper end of the up-and-down movement mechanism, a supporting cover is arranged on the upper side of the lifting plate, a motor is arranged at the upper end of the supporting cover, a rotating shaft extending into the box body is arranged at the output end of the motor, a plurality of stirring blades are arranged in the rotating shaft and spaced from the screen meshes, a first feeding pipe is arranged at the right end of the, The lower extreme of second conveying pipe and third conveying pipe all is connected with the circulation case, the right-hand member of circulation case is provided with the circulating pump, be provided with the circulating pipe on the circulating pump, the upper end of circulating pipe and the upper end intercommunication of box, the middle part of first conveying pipe is provided with the second and arranges the material pipe, and the middle part of second conveying pipe is provided with the third and arranges the material pipe, and the middle part of third conveying pipe is provided with the fourth and arranges the material pipe.

As a still further scheme of the invention: and the first material discharging pipe, the second material discharging pipe, the third material discharging pipe and the third material discharging pipe are all provided with control valves.

As a still further scheme of the invention: the first material conveying pipe is provided with a control valve at a position below the second material discharging pipe, the second material conveying pipe is provided with a control valve at a position below the third material discharging pipe, and the third material conveying pipe is provided with a control valve at a position below the fourth material discharging pipe.

As a still further scheme of the invention: the up-and-down movement mechanism comprises a first electromagnet installed at the upper end of the box body, a telescopic rod is arranged on the upper side of the first electromagnet, a second electromagnet is arranged at the upper end of the telescopic rod and connected with the lifting plate, and a return spring is arranged on the outer side of the telescopic rod.

As a still further scheme of the invention: the outside of motor is provided with the sound-proof housing, and the inside of sound-proof housing is provided with the heat conduction pole, and the outside that separates the heat exchanger is provided with the heating panel, the one end and the heating panel of heat conduction pole are connected, and the other end and the motor of heat conduction pole are connected.

As a still further scheme of the invention: the inside longitudinal symmetry of support cover is provided with the mount, be provided with fixing bearing between mount and the pivot.

As a still further scheme of the invention: the left and right sides of installation cover is provided with air intake and air exit, be provided with the fan on the air exit, the outside of pivot is provided with the heat conduction cover, the outside of heat conduction cover is passed through branch and is connected with the installation cover, and the outside of heat conduction cover still is provided with the air guide shaft, be provided with spiral air guide blade on the air guide shaft.

Compared with the prior art, the invention has the beneficial effects that: the structure setting of this device is provided with first conveying pipe, second conveying pipe and third conveying pipe, and through the control of control valve, first conveying pipe, second conveying pipe and third conveying pipe according to certain order solitary with circulation case, circulating pump and circulating pipe constitution circulation system, realize the circulation screening operation of every particle diameter, guarantee the quality of screening and the efficiency of screening, discharge through the row's of correspondence material pipe after the screening is accomplished, and the practicality is strong.

Drawings

Fig. 1 is a schematic structural diagram of the device.

Fig. 2 is a schematic structural view of the motor.

Fig. 3 is a schematic view of the structure of the mounting cover.

1-box body, 2-support column, 3-circulation box, 4-feed hopper, 5-first discharging pipe, 6-screen, 7-first electromagnet, 8-telescopic rod, 9-second electromagnet, 10-return spring, 11-lifting plate, 12-mounting cover, 13-motor, 14-rotating shaft, 15-stirring blade, 16-first feeding pipe, 17-second feeding pipe, 18-third feeding pipe, 19-second discharging pipe, 20-third discharging pipe, 21-fourth discharging pipe, 22-control valve, 23-circulation pump, 24-circulation pipe, 25-sound insulation cover, 26-heat conduction rod, 27-heat dissipation plate, 28-mounting frame, 29-fixed bearing, 30-air inlet, 31-air outlet, 31-sound insulation cover, 32-a fan, 33-a support rod, 34-a heat dissipation sleeve, 35-a wind guide shaft and 36-a spiral wind guide blade.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.