阅读说明：本技术 一种建筑工程预埋外露钢筋除锈装置 (Pre-buried exposing reinforcing bar rust cleaning device of building engineering ) 是由 张燕燕 于 2021-08-02 设计创作，主要内容包括：本发明公开了一种建筑工程预埋外露钢筋除锈装置,包括空气压缩机、集料箱和金属防护罩,金属防护罩的封闭端处焊接有吊耳,金属防护罩的敞口端呈圆环形；所述敞口端的内壁沿周向开设有一圈凹槽；凹槽内滑动配合有金属连接圈；金属连接圈的内圈面沿周向固定连接有弹性伸缩篷；金属防护罩上沿长方向开设有若干条滑槽,每一条滑槽内对应滑动连接有至少一个喷砂枪；所有的喷砂枪均通过输料管连通集料箱,所有的喷砂枪均通过空压管与空气压缩机连通。该装置用于对目前的柱头预埋外露的钢筋进行除锈,能够有效保护螺纹筋的螺纹肋,保证建筑结构受力；采用喷砂工艺进行除锈,既安全同时又兼具了经济性,对铁砂进行了重复二次利用,节约成本。(The invention discloses a rust removing device for embedded exposed steel bars in constructional engineering, which comprises an air compressor, a material collecting box and a metal protective cover, wherein a lifting lug is welded at the closed end of the metal protective cover, and the open end of the metal protective cover is annular; the inner wall of the open end is circumferentially provided with a circle of groove; a metal connecting ring is matched in the groove in a sliding way; the inner ring surface of the metal connecting ring is fixedly connected with an elastic telescopic tent along the circumferential direction; a plurality of sliding grooves are formed in the metal protective cover along the length direction, and at least one sand blasting gun is correspondingly connected in each sliding groove in a sliding manner; all sand blasting guns all communicate the case that gathers materials through the conveying pipeline, and all sand blasting guns all communicate with air compressor through the air compression pipe. The device is used for removing rust on the steel bars embedded and exposed on the column cap at present, can effectively protect the thread ribs of the thread ribs and ensures the stress of a building structure; the sand blasting process is adopted for rust removal, so that the rust removal process is safe and economical, iron sand is recycled, and the cost is saved.)

1. The utility model provides a pre-buried exposing reinforcing bar rust cleaning device of building engineering which characterized in that: the device comprises an air compressor (3), a material collecting box (4) and a metal protective cover (5), wherein a lifting lug (6) is welded at the closed end of the metal protective cover (5), and the open end of the metal protective cover (5) is in a circular ring shape; the inner wall of the open end is circumferentially provided with a circle of groove; a metal connecting ring (7) is matched in the groove in a sliding way, and the metal connecting ring (7) can rotate relative to the groove; the inner ring surface of the metal connecting ring (7) is fixedly connected with an elastic telescopic awning (8) along the circumferential direction, and the necking of the elastic telescopic awning (8) towards the center is circular or square; a plurality of sliding grooves (5a) are formed in the metal protective cover (5) along the length direction, at least one sand blasting gun (9) is correspondingly connected in each sliding groove (5a) in a sliding mode, and the sand blasting guns (9) can slide in a reciprocating mode along the length direction of the sliding grooves (5 a); all sand blasting guns (9) are communicated with the material collecting box (4) through material conveying pipes (11), and all sand blasting guns (9) are communicated with the air compressor (3) through air pressure pipes (10).

2. The pre-buried exposed steel bar rust removal device for the constructional engineering as claimed in claim 1, which is characterized in that: the air compressor (3) is provided with an automatic control valve group (12), and the automatic control valve group (12) is formed by installing a plurality of electromagnetic valves on a control panel in a superposition manner; each electromagnetic valve correspondingly controls the opening and closing of compressed air of one sand blasting gun (9).

3. The pre-buried exposed steel bar rust removal device for the constructional engineering as claimed in claim 1, which is characterized in that: the elastic telescopic tent (8) is provided with a leak hole which is communicated with the material collecting box (4) through a recovery pipe (13).

4. The pre-buried exposed steel bar rust removal device for the constructional engineering as claimed in claim 1, which is characterized in that: metal protection casing (5) are improved level and are fixed with telescopic link (14), and metal protection casing (5) internally mounted has camera (15), installs display screen (16) on telescopic link (14), and display screen (16) are connected with camera (15) electricity.

Technical Field

The invention belongs to the technical field of building construction equipment, and particularly relates to a rust removing device for embedded exposed steel bars in constructional engineering.

Background

When the main body of the building structure is constructed, the main body needs to be divided into a plurality of construction sections or construction layers. In order to ensure the uniformity of the overall stress of the structure and improve the overall stress of the structure, the steel bars of each layer are generally required to be connected, and the wrapped concrete also needs to be firmly combined. Therefore, inevitably, when the previous construction layer is constructed, the reserved steel bar joints and even the common steel bars are exposed in the air, so that the steel bars of the next construction section or the construction layer are lapped.

However, in actual construction, the steel bars exposed to the air are not covered by the concrete of the next construction layer for a long time, and the steel bars are stopped for a long time due to weather or other influences, so that the steel bars are corroded. Especially, when the steel bars of the column cap (most of the existing buildings are frame structures) are constructed again, the rust removal is needed. The existing rust removal mode mainly adopts a steel wire brush and the like to carry out physical polishing. In the construction of high-rise buildings, the longitudinal structural bars (main bars) are generally threaded bars, and the threaded bars are adopted because the threaded ribs on the surfaces of the longitudinal structural bars can promote the combination of concrete and reinforcing steel bars to be firmer. However, when the polishing method or the polishing device directly acts on the steel bars, a part of the threaded ribs are easily polished off, or each steel bar is slowly polished, and the polishing method or the polishing device is very inconvenient to operate particularly when the stirrups are already tied, because the space above the steel bars is blocked. Therefore, there is a need for a better apparatus or method for removing rust from such bars, particularly for treating the exposed studs embedded in the studs.

Disclosure of Invention

The invention provides a rust removal device for embedded exposed reinforcing steel bars in constructional engineering, which mainly aims at carrying out rust removal treatment on embedded threaded bars of column heads so as to solve the problems in the background technology.

The technical scheme of the invention is as follows: a rust removal device for embedded exposed steel bars in constructional engineering comprises an air compressor, a material collecting box and a metal protective cover, wherein a lifting lug is welded at the closed end of the metal protective cover, and the open end of the metal protective cover is annular; the inner wall of the open end is circumferentially provided with a circle of groove; a metal connecting ring is matched in the groove in a sliding way, and the metal connecting ring can rotate relative to the groove; the inner ring surface of the metal connecting ring is fixedly connected with an elastic telescopic awning along the circumferential direction, and the necking of the elastic telescopic awning towards the center is circular or square; a plurality of sliding grooves are formed in the metal protective cover along the length direction, at least one sand blasting gun is correspondingly connected in each sliding groove in a sliding mode, and the sand blasting guns can slide in a reciprocating mode along the length direction of the sliding grooves; all sand blasting guns all communicate the case that gathers materials through the conveying pipeline to all sand blasting guns all communicate with air compressor through the air compression pipe.

Further: the air compressor is provided with an automatic control valve group, and the automatic control valve group is formed by installing a plurality of electromagnetic valves on a control panel in a superposition manner; each electromagnetic valve correspondingly controls the opening and closing of the compressed air of one sand blasting gun.

Further: the elastic telescopic tent is provided with a leakage hole, and the leakage hole is communicated with the material collecting box through a recovery pipeline.

Further: the metal protection cover is improved in structure, the metal protection cover is horizontally fixed with a telescopic rod, a camera is arranged inside the metal protection cover, a display screen is arranged on the telescopic rod, and the display screen is electrically connected with the camera.

Has the advantages that: the scheme provides a rust removal device for embedded and exposed reinforcing steel bars in constructional engineering, which is used for removing rust of the embedded and exposed reinforcing steel bars of the conventional column cap, can effectively protect thread ribs of thread ribs and ensures the stress of a building structure; the device adopts the sandblast technology to rust cleaning, utilizes the metal protection casing to protect operating personnel simultaneously, still utilizes the flexible covering or awning on a car, boat, etc. to collect iron sand, has had economic nature again simultaneously safely, has carried out repeated reutilization, practices thrift the cost to iron sand.

The metal protection casing in this scheme can pull all sand blasting guns and rotate, also can make things convenient for the sandblast direction to the sand blasting gun to adjust, and the omnidirectional derusts the reinforcing bar, and is effective thoroughly.

Drawings

FIG. 1 is a schematic structural diagram of a rust removing device in the invention in the using process;

fig. 2 is a schematic view of an installation structure of the elastic retractable awning and the metal protective cover in the invention.

Example reference numerals: column cap 1, reinforcing bar 2, air compressor 3, collection workbin 4, metal protection casing 5, lug 6, metal connecting ring 7, elastic telescopic hood 8, sand blasting gun 9, air compression pipe 10, conveying pipeline 11, automatic control valves 12, recovery pipe 13, telescopic link 14, camera 15, display screen 16, spout 5a

Detailed Description

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

as shown in figures 1 and 2, the invention discloses a rust removing device for embedded exposed steel bars in constructional engineering, which comprises an air compressor 3, a material collecting box 4 and a metal protective cover 5. As a construction equipment to be applied on a construction site, it is required that it should be economical while having workability. Therefore, we have adopted a blasting process that is not currently conventionally applied.

Because the sand blasting process has certain danger, the iron sand can be recycled to the maximum extent when in use, and the thread ribs of the thread ribs are reserved, the metal protective cover 5 is adopted to protect the iron sand. The method specifically comprises the following steps: the closed end of the metal protective cover 5 is welded with a lifting lug 6, and the open end of the metal protective cover 5 is in a circular ring shape; the inner wall of the open end is circumferentially provided with a circle of groove; a metal connecting ring 7 is matched in the groove in a sliding way, and the metal connecting ring 7 can rotate relative to the groove; the inner ring surface of the metal connecting ring 7 is fixedly connected with an elastic telescopic awning 8 along the circumferential direction, and the necking of the elastic telescopic awning 8 towards the center is circular or square; a plurality of sliding grooves 5a are formed in the metal protective cover 5 along the length direction, at least one sand blasting gun 9 is correspondingly connected in each sliding groove 5a in a sliding mode, and the sand blasting guns 9 can slide in a reciprocating mode along the length direction of the sliding grooves 5 a; all the sand blasting guns 9 are communicated with the material collecting box 4 through material conveying pipes 11, and all the sand blasting guns 9 are communicated with the air compressor 3 through air compression pipes 10.

During specific operation, the metal protective cover 5 is hoisted by the tower crane to cover the column cap 1 to be treated, the column cap can be a round column cap 1 or a square column cap 1, and an elastic telescopic awning 8 with a round or square necking is specifically selected to seal a gap between the open end of the metal protective cover 5 and the column cap 1. As shown in detail in fig. 1 and 2. The tower crane always keeps the state of lifting the metal protective cover 5 and keeps the balance of the metal protective cover.

After the air compressor 3 is started, a negative pressure area is formed inside the sand blasting gun 9, iron sand in the material collecting box 4 is sucked into the sand blasting gun 9 by utilizing atmospheric pressure, and the horizontal sand blasting guns 9 in multiple directions are used for spraying the iron sand to the side surface of the steel bar 2 covered in the metal protective cover 5 at a high speed. The iron sand is sprayed out from a plurality of directions simultaneously to carry out rust removal treatment on the surface of the steel bar 2. The physical contact area between the iron sand and the thread rib is small, so that the thread rib of the thread rib can not be damaged. Meanwhile, the iron sand can be sprayed to other steel bars 2 in other uncontrolled directions after the steel bars 2 are contacted, so that each side surface of the steel bars 2 can be effectively derusted in the mode. And the metal protective cover 5 limits the iron sand, so that the iron sand can only act on the steel bar 2 without splashing everywhere to hurt people, and the safety and reliability are realized.

The open end of the metal hood 5, i.e. the bottom in fig. 1, is arranged in the shape of a circular ring, on the one hand to facilitate a better mounting of the elastically telescopic roof 8, and on the other hand to facilitate the rotation of the metal hood 5. The rotating metal shield 5 can adjust the orientation of the sand blasting guns 9 to promote more complete removal of rust on each side of the rebar 2. According to the length of the steel bar 2, the upper position and the lower position of the sand-blasting gun 9 can be adjusted along the sliding groove 5a, so that the steel bar 2 can be derusted in all directions.

The more important point is that: the iron sand directly falls into the elastic telescopic awning 8 downwards after colliding with the steel bar 2. Therefore, the elastic telescopic awning 8 is provided with a leakage hole which is communicated with the material collecting box 4 through the recovery pipe 13. Therefore, the iron sand can form continuous circulation, the economic value is high, and the cost is reduced. For the control of the air compressor 3, the air compressor 3 is provided with an automatic control valve group 12, and the automatic control valve group 12 is formed by installing a plurality of electromagnetic valves on a control panel in an overlapping manner; each electromagnetic valve correspondingly controls the opening and closing of the compressed air of one sand blasting gun 9. The automatic control valve group 12 continuously adjusts the opening and closing of all the sand blasting guns 9 according to a preset program, so that all the air pressure of the air compressor 3 is conveniently collected to a plurality of sand blasting guns 9, the sand blasting guns 9 which work can firstly classify and then integrally blast the steel bars 2, and the operation is convenient.

In addition, in order to enable the metal shield 5 to rotate better, an expansion link 14 is horizontally fixed on the metal shield 5, a camera 15 is installed inside the metal shield 5, a display screen 16 is installed on the expansion link 14, and the display screen 16 is electrically connected with the camera 15. The workman can stand in very far place, and it is rotatory through 14 operation metal protection covers of telescopic link 5 to observe the sandblast condition and the rust cleaning condition of reinforcing bar 2 of metal protection cover 5 inside through camera 15, safe and reliable realizes accurate quick sandblast operation, and the high efficiency is accomplished the processing to decorating reinforcing bar 2.

The above description is only exemplary of the present invention and should not be taken as limiting, and any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.