CN-122008401-A - Accurate positioner of precast box girder body reinforcing bar ligature

CN122008401ACN 122008401 ACN122008401 ACN 122008401ACN-122008401-A

Abstract

The invention relates to the technical field of reinforcement positioning, and discloses a precise positioning device for reinforcement of a precast box girder body, which comprises two bottom plate angle steels, two web angle steels and a plurality of groups of brackets, wherein the bottom plate angle steels and the web angle steels are symmetrically and fixedly arranged on the plurality of groups of brackets, and clamping grooves corresponding to each other are formed in the bottom plate angle steels and the web angle steels. Through pulling this device and remove from bottom plate angle steel one end to the other end, when the locked piece of installation in this device bottom removes the draw-in groove department of seting up on the bottom plate angle steel, the locked piece will insert corresponding draw-in groove under compression spring's elasticity effect, make the locked piece realize the locking to this device position, at this moment, can put down the reinforcing bar of waiting to ligature from the constant head tank, make the reinforcing bar fall to the corresponding draw-in groove of seting up on bottom plate angle steel and the web angle steel, realize the operation of placing in proper order of reinforcing bar, and the reinforcing bar position by constant head tank department is accurate, avoid the reinforcing bar to place the skew, influence subsequent ligature operation.

Inventors

Lu Zhanshuang
ZHAO JUNHAO
NIE ZHIWEI
CAO XUEJIE
WANG JING
LIU XIAOHONG
YANG LINLIN
LI CHENZI
NI ZIBO
LI KAITAO
WANG YUECHAO
LIANG BOHAO

Assignees

中铁北京工程局集团(天津)工程有限公司

Dates

Publication Date: 20260512
Application Date: 20260414

Claims (8)

1. Accurate positioner of precast box girder body reinforcement, including two bottom plate angle steel (1), two web angle steel (3) and multiunit support (2), bottom plate angle steel (1) and web angle steel (3) equal symmetry fixed mounting are on multiunit support (2), and bottom plate angle steel (1) all offer draw-in groove (4) that correspond each other on web angle steel (3), its characterized in that still includes: The positioning base plate (5) and two positioning side plates (6), wherein the two positioning side plates (6) are respectively and obliquely fixedly arranged at two ends of the positioning base plate (5), the positioning base plate (5) and the positioning side plates (6) form a V-shaped structure, and positioning grooves (13) for steel bars to pass through are formed in the outer surfaces of the positioning base plate (5) and the positioning side plates (6) in a penetrating manner; The movable assembly is arranged on the outer sides of the positioning bottom plate (5) and the positioning side plate (6) and is used for supporting the positioning bottom plate (5) and the positioning side plate (6) to walk on the bottom plate angle steel (1) and the web angle steel (3).
2. The accurate positioning device for binding the steel bars of the precast box girder body according to claim 1, wherein the movable assembly comprises two mounting plates (14) fixedly mounted on the outer side of a positioning side plate (6), two second rollers (15) are rotatably mounted between the two mounting plates (14), two groups of fixing blocks (7) are symmetrically and fixedly mounted on the lower surface of the positioning bottom plate (5), rotating shafts (8) are rotatably mounted on the outer surfaces of each group of fixing blocks (7) in a penetrating mode, and first rollers (9) are fixedly mounted on two end portions of each rotating shaft (8).
3. The accurate positioning device for binding the steel bars of the precast box girder body according to claim 2, characterized in that a locking mechanism is installed at the bottom of the positioning bottom plate (5), the locking mechanism comprises a supporting tube (10) fixedly installed on the lower surface of the positioning bottom plate (5), guide rods (11) are inserted into two ends of the supporting tube (10), a locking block (12) is fixedly installed at one end part of the guide rods (11) far away from the supporting tube (10), the locking block (12) can be inserted into a clamping groove (4) formed in the bottom plate angle steel (1), and an unlocking component for unlocking the locking block (12) is installed at the bottom of the positioning bottom plate (5).
4. The accurate positioner of prefabricated box girder body reinforcement according to claim 3, characterized in that, the unblock subassembly includes fixed mounting in installation piece (16) of locating baseplate (5) lower surface, the surface penetration of installation piece (16) is equipped with pull rod (17), the one end tip fixed mounting that is close to locking piece (12) of pull rod (17) has horizontal pole (19), the both ends tip of horizontal pole (19) all rotates installs bull stick (20), the one end that horizontal pole (19) was kept away from to bull stick (20) rotates the installation with the surface of locking piece (12).
5. The accurate positioning device for binding of precast box girder body steel bars according to claim 4, wherein the outer surface of the pull rod (17) is sleeved with a compression spring (18), and the compression spring (18) is arranged between the mounting block (16) and the cross rod (19).
6. The accurate positioning device for binding of steel bars of a precast box girder body according to claim 5, characterized in that a detection mechanism for detecting whether steel bars are in a leakage installation is installed between the positioning bottom plate (5) and the positioning side plate (6), the detection mechanism comprises a T-shaped plate (22) fixedly installed between the positioning bottom plate (5) and the inner side of the positioning side plate (6), a positioning block (23) is fixedly installed on the outer surface of the T-shaped plate (22), a movable rod (26) is inserted through the outer surface of the positioning block (23), a detection block (27) is fixedly installed at one end part of the movable rod (26) far away from the positioning block (23), the end part of the detection block (27) is of a conical structure, and a limiting ring (29) is fixedly installed at the other end part of the movable rod (26).
7. The accurate positioning device for binding the steel bars of the precast box girder body according to claim 6, wherein an alarm (24) is fixedly arranged on the outer surface of the T-shaped plate (22), and a touch switch (25) corresponding to the end part of the movable rod (26) is fixedly arranged on the outer surface of the alarm (24).
8. The accurate positioning device for binding the steel bars of the precast box girder body according to claim 7, wherein a return spring (28) is sleeved on the outer surface of the movable rod (26), and the return spring (28) is arranged between the detection block (27) and the positioning block (23).

Description

Accurate positioner of precast box girder body reinforcing bar ligature Technical Field The invention relates to the technical field of reinforcement binding and positioning, in particular to a precise positioning device for binding reinforcement of a precast box girder body. Background The binding of the reinforcement cage is the greatest in workload, the most tedious and the longest in time in the production operation of the prefabricated box girder, belongs to an important link in the prefabrication of the box girder, and installs the bottom plate and web reinforcement of the prefabricated box girder on the fixed jig frame, so that the installation distance of the semi-finished product reinforcement can be ensured, and meanwhile, the construction efficiency can be improved. The prior art has the defects that the prior art can rapidly and accurately position web stirrups, bottom plate stirrups and web horizontal ribs through the prior art, so as to improve the binding precision of the prefabricated box girder steel bars and accelerate the binding speed of the prefabricated box girder steel bars, and because the clamping grooves on the bottom plate steel bars and the web steel bars are relatively dense in number, workers can easily put the position in a misplacement manner when placing the steel bars, thereby influencing the subsequent binding operation. Disclosure of Invention The invention aims to solve the defects in the prior art, and provides a precise positioning device for binding reinforcing steel bars of a precast box girder body. In order to achieve the above purpose, the present invention adopts the following technical scheme: The utility model provides a accurate positioner of precast box girder body reinforcement, includes two bottom plate angle steel, two web angle steel and multiunit support, bottom plate angle steel and web angle steel equal symmetry fixed mounting are on multiunit support, and all offer the draw-in groove that corresponds each other on bottom plate angle steel and the web angle steel, still include: The positioning bottom plate and the two positioning side plates are respectively and obliquely fixedly arranged at two ends of the positioning bottom plate, the positioning bottom plate and the positioning side plates form a V-shaped structure, and positioning grooves for the steel bars to pass through are formed in the outer surfaces of the positioning bottom plate and the positioning side plates in a penetrating manner; The movable assembly is arranged on the outer sides of the positioning bottom plate and the positioning side plate and used for supporting the positioning bottom plate and the positioning side plate to walk on the bottom plate angle steel and the web angle steel. As a further scheme of the invention, the movable assembly comprises two mounting plates fixedly mounted on the outer sides of the positioning side plates, two second rollers are rotatably mounted between the two mounting plates, two groups of fixing blocks are symmetrically and fixedly mounted on the lower surface of the positioning bottom plate in pairs, rotating shafts are rotatably mounted on the outer surfaces of each group of fixing blocks in a penetrating mode, and first rollers are fixedly mounted at the end portions of two ends of each rotating shaft. As a further scheme of the invention, the bottom of the positioning bottom plate is provided with the locking mechanism, the locking mechanism comprises a supporting pipe fixedly arranged on the lower surface of the positioning bottom plate, both ends of the supporting pipe are respectively inserted with a guide rod, one end part of the guide rod, which is far away from the supporting pipe, is fixedly provided with the locking block, the locking block can be inserted into a clamping groove formed in the angle steel of the bottom plate, and the bottom of the positioning bottom plate is provided with an unlocking component for unlocking the locking block. As a further scheme of the invention, the unlocking component comprises a mounting block fixedly mounted on the lower surface of the positioning bottom plate, a pull rod is penetrated through the outer surface of the mounting block, a cross rod is fixedly mounted at one end part of the pull rod, which is close to the locking block, a rotating rod is rotatably mounted at two end parts of the cross rod, and one end of the rotating rod, which is far away from the cross rod, is rotatably mounted with the outer surface of the locking block. As a further scheme of the invention, the outer surface of the pull rod is sleeved with a compression spring, and the compression spring is arranged between the mounting block and the cross rod. As a further scheme of the invention, a detection mechanism for detecting whether the reinforcing steel bar is neglected to be installed between the positioning bottom plate and the positioning side plate is installed, the detection mechanism comprises a T-shaped plate fix