CN110847033B - Bridge guardrail steel bar positioning device - Google Patents
Bridge guardrail steel bar positioning device Download PDFInfo
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- CN110847033B CN110847033B CN201911214377.6A CN201911214377A CN110847033B CN 110847033 B CN110847033 B CN 110847033B CN 201911214377 A CN201911214377 A CN 201911214377A CN 110847033 B CN110847033 B CN 110847033B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
- E01D19/103—Parapets, railings ; Guard barriers or road-bridges
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/18—Spacers of metal or substantially of metal
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Abstract
The invention discloses a bridge guardrail steel bar positioning device, which comprises side brackets arranged at intervals, wherein a connecting bracket is arranged between the two side brackets, the connecting bracket is respectively and fixedly connected with the two side brackets, longitudinal positioning devices are respectively arranged on the outer side surfaces of the two side brackets, each longitudinal positioning device comprises a longitudinal positioning rod which is vertically arranged on the side brackets at intervals and used for supporting a middle steel bar, transverse positioning rods which are arranged on the connecting bracket at intervals along the opposite directions of the two side brackets are arranged on the connecting bracket at intervals, a limiting part which is used for limiting a steel bar framework is arranged on each transverse positioning rod, each pressing rod can be tightly pressed on each transverse positioning rod through a pull rod and a tensioning spring, and each part between each pressing rod and each transverse positioning rod is used for clamping the steel bar framework. The steel bar framework positioning device is simple in structure, simple and convenient to operate, and capable of conveniently positioning the steel bar framework and the middle steel bar at the same time, and improves construction efficiency.
Description
Technical Field
The invention relates to the field of guardrail steel bar installation, in particular to a bridge guardrail steel bar positioning device.
Background
In recent years, with the continuous development of economic construction in China, the expressway network is gradually improved, the requirement on bridge protection is higher and higher, and the expressway network is also an important link for ensuring the safety of highways. In order to ensure the smoothness and efficiency of road operation and improve the comfort and safety of road driving, the construction process of the bridge anti-collision guardrail needs to be improved, the firmness and the quality of the guardrail are improved, and the due functions of the guardrail are fully exerted. The highway bridge anticollision barrier adopts reinforced concrete structure more, and in the steel bar installation work progress, not only need control equidistance interval location to the framework of steel reinforcement, but also need not equidistance interval location from top to bottom to middle reinforcing bar. In the conventional construction, the installation of the steel reinforcement framework needs to weld the positioning steel bars to position the steel reinforcement framework, so that the construction work amount is increased, and the construction period is prolonged. The middle steel bars are positioned by hanging wires, but the middle steel bars are positioned and bound with the steel bar framework, so that the installation difficulty of the middle steel bars is increased.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problems to be solved by the invention are as follows: how to provide an easy operation, can be convenient when fix a position framework of steel reinforcement and middle reinforcing bar, improve efficiency of construction's bridge railing reinforcing bar positioner.
In order to solve the technical problems, the invention adopts the following technical scheme:
a bridge guardrail steel bar positioning device comprises side supports which are opposite in the left-right direction and are arranged at intervals, wherein the side supports are vertically arranged, a connecting support is arranged between the two side supports, the connecting support is fixedly connected with the two side supports respectively, longitudinal positioning devices are arranged on the outer side surfaces of the two side supports respectively and are symmetrically arranged in the left-right direction, each longitudinal positioning device comprises a plurality of longitudinal supporting guide pipes which are arranged on the side supports at intervals in the vertical direction, the longitudinal supporting guide pipes extend in the front-back direction, the distance between every two adjacent longitudinal supporting guide pipes on the same side is increased from top to bottom in sequence, longitudinal supporting rods which can be in sliding fit with the longitudinal supporting guide pipes along the central line direction of the longitudinal supporting guide pipes penetrate through the longitudinal supporting guide pipes, and rod bodies of the longitudinal supporting rods and in front of the longitudinal supporting guide pipes are supporting parts for supporting middle steel bars of a guardrail; the upper surface of the connecting bracket is uniformly fixed with a plurality of transverse positioning pipes at intervals along the left-right direction, the transverse positioning pipes extend along the front-back direction, transverse positioning rods which can be in sliding fit with the transverse positioning rods along the central line direction are arranged in the transverse positioning pipes in a penetrating way, rod bodies of the transverse positioning rods and positioned in front of the transverse positioning pipes are limiting parts for limiting the guardrail steel bar framework, clamping devices are arranged on the transverse positioning rods and positioned at the positioning parts, each clamping device comprises a pull rod I and a pull rod II which are arranged at intervals along the front-back direction, the pull rods I and II are positioned on the same plane and extend along the left-right direction, the pull rods I and II respectively penetrate through the transverse positioning rods along the radial direction of the transverse positioning rods, pressing strips are arranged on any side of the transverse positioning rods, the positions of the limiting parts of the transverse positioning rods are positioned on the same plane and extend along the front-back direction, one end that pull rod I and pull rod II just are located the layering respectively all links together with the layering, and pull rod I and pull rod II and its one end of keeping away from the layering fixedly connected with stopper respectively, and pull rod I and pull rod II and respectively the cover are equipped with taut spring on the body of rod between its place stopper and the place transverse orientation pole, and taut spring is in order to compress tightly the spring power that provides on its place transverse orientation pole for the layering.
When the transverse support rod pressing device is used, the reinforcement cage is positioned, the pressing strip is pulled outwards to separate the pressing strip from the transverse positioning rod, the reinforcement cage is placed into the transverse support rod, and after the pressing strip is loosened, the pressing strip extrudes the reinforcement cage inside the reinforcement cage under the spring force of the tension spring to tightly press the reinforcement cage on the corresponding transverse support rod. The same method is adopted to clamp and position the rest of the steel bar frameworks on the transverse positioning rods in sequence, the distances between the transverse positioning rods are equal, the steel bar frameworks are pressed on the same side of the transverse positioning rods, and therefore the steel bar frameworks can be positioned at equal intervals, then the transverse positioning rods are moved along the direction of the central line of the transverse positioning guide pipe, the steel bar frameworks on the transverse positioning rods are aligned to construction lines which are measured in advance, and the transverse positioning rods are welded with bridge deck embedded steel bars, and positioning and installation of the steel bar frameworks are completed. Then, the middle reinforcing steel bars are installed, and the interval distance of the middle reinforcing steel bars in the vertical direction can be limited by the interval between the longitudinal supporting rods. When reinforcing bar in the middle of the installation, remove the longitudinal support pole along longitudinal support pipe central line direction earlier, make it pass and press from both sides tight fixed steel skeleton, then utilize the longitudinal support pole of equal height on two collateral branch framves to support middle reinforcing bar, all place middle reinforcing bar on the longitudinal support pole on every layer of the framework inside and outside the steel skeleton, and middle reinforcing bar is under the condition that the longitudinal support pole supported, the position of reinforcing bar in the middle of the adjustment, make two middle reinforcing bars of same layer paste respectively on the inside and outside both sides of steel skeleton, just so make things convenient for constructor to carry out the ligature to middle reinforcing bar and steel skeleton, accomplish the location installation of middle reinforcing bar.
Preferably, the pull rod I is hinged with the pressing strip through a hinge shaft I which is vertically arranged, one end of the pull rod II, far away from the limiting block, protrudes outwards along the central line direction to form an insertion column, the diameter of the insertion column is larger than that of the pull rod II, a counter bore for accommodating the insertion column is concavely arranged on the transverse positioning rod, a jack into which the insertion column can be inserted is concavely arranged on one side surface of the pressing strip, facing the transverse positioning rod, and the insertion column is inserted into the jack and can be in sliding fit with the jack along the central line direction of the jack, a positioning hole is penetratingly arranged on the insertion column along the vertical direction, a limiting hole communicated with the jack is vertically arranged on the top surface of the pressing strip and corresponding to the position of the jack, the diameter of the positioning hole is the same as that of the limiting hole, when the insertion column is abutted against the bottom of the jack, the positioning hole and the limiting hole are arranged along the same central line, and a positioning pin is arranged on the pressing strip and corresponding to the limiting hole, the locating pin can insert in spacing downthehole and can follow its central line direction rather than sliding fit, and the one end of locating pin is passed in spacing hole and is inserted in the locating hole, and the other end of locating pin is outwards protruding along its central line direction and is formed with the spacing head, and the diameter of spacing head is greater than the diameter of locating pin, and when spacing head butt was in on the layering, the locating pin was in order to insert in the locating hole. The positioning pin is taken out, the inserting column exits from the inserting hole under the action of the spring force of the tensioning spring, so that the pressing strip can rotate around the hinge shaft I, and the reinforcing steel bar framework can be conveniently opened to enter between the reinforcing steel bar framework and the transverse positioning rod.
Preferably, a rotation shaft is formed by protruding the tube body of the longitudinal support catheter towards the side where the tube body is located on one side of the side support, the rotation shaft is located in the middle of the longitudinal support catheter along the length direction of the longitudinal support catheter, the center line of the rotation shaft and the center line of the longitudinal support catheter are located on the same plane and are perpendicular to each other, the rotation shaft and the side support on the side where the rotation shaft is located are rotatably connected together so that the longitudinal support catheter can rotate around the center line of the rotation shaft, a connecting rod is arranged at the rear of the side support and is vertically arranged and is connected with all the longitudinal support rods on the same side of the side support, one end of each longitudinal support rod, which is far away from the support portion, is hinged with the connecting rod through a hinge shaft II arranged along the left-right direction, and a support plate is arranged on the side support and above the topmost longitudinal support catheter on the side of the side support and extends along the front-back direction, backup pad and its place one side collateral branch frame fixed connection, the position of the connecting rod top that just is located its place one side in the backup pad is worn to be equipped with along the bar hole that the fore-and-aft direction was followed along vertical direction, the outside arch of the upper end of connecting rod along its central line direction is formed with supporting screw, supporting screw's upper end is passed in the bar hole and is stretched out in the top of backup pad, supporting screw's pole body can move along bar hole extending direction in the bar hole, supporting screw just is located the pole body of backup pad below and has the support nut in screw-thread fit, the support nut is in order to carry on spacingly with the upward movement to supporting screw with can the butt on the lower surface of backup pad.
After the reinforcing cage and the middle reinforcing steel bar are positioned and installed, the positioning device needs to be withdrawn, because the middle reinforcing steel bar is placed on the longitudinal support rod when the middle reinforcing steel bar is positioned and supported, after the middle reinforcing steel bar is bound with the reinforcing cage, the middle reinforcing steel bar cannot move, and when the longitudinal support rod is pulled out outwards, the longitudinal support rod still bears the weight of the middle reinforcing steel bar, so that the unloading difficulty of the longitudinal support rod can be caused. In the invention, the supporting part of the longitudinal supporting rod bears the weight of the middle reinforcing steel bar, the other end of the longitudinal supporting rod can generate upward acting force through the rotating shaft on the longitudinal supporting guide pipe, so that the connecting rod can move upwards, the supporting nut in threaded fit on the supporting screw rod at the upper end of the connecting rod can abut against the lower surface of the supporting plate, the connecting rod cannot move upwards, the longitudinal supporting rod cannot rotate, and the middle reinforcing steel bar can be placed on the supporting part of the longitudinal supporting rod. When whole positioner need the uninstallation, the support nut that moves downwards soon just so can make the connecting rod rebound, and then can drive the supporting part of longitudinal support pole and rotate downwards, makes its middle reinforcing bar after fixing a position separate, and it is light easy to remove longitudinal support pole like this again.
Preferably, a handle which is integrally in a semi-circular arc structure is arranged on the rear side face of the connecting rod and in the middle of the connecting rod in the length direction, two ends of the handle are respectively fixed with the connecting rod, and the plane of the handle and the planes of all the longitudinal supporting rods on one side of the handle are located on the same plane. The handle of semicircle arc structure can make things convenient for the operator to reciprocate the connecting rod and adjust the state of longitudinal support pole.
Preferably, the positions, corresponding to the rotating shafts, on the outer side surfaces of the side brackets are respectively convexly provided with connecting seats, the connecting seats are back to the side surfaces of the side brackets, on one side of each connecting seat, rotating shaft mounting holes are concavely formed in the left direction and the right direction, bearings arranged along the central lines of the rotating shafts are mounted in the rotating shaft mounting holes, and the rotating shafts are inserted into bearing inner rings and are rotatably connected with the connecting seats through the bearings. The longitudinal support conduit is more flexible to rotate.
As optimization, the upper surface of backup pad just corresponds the position in bar hole is provided with the dog, and the dog is located its place one side the place ahead of supporting screw rod and rather than inconsistent wears to be equipped with set screw on the dog, and set screw's screw rod section is worn too the bar hole just stretches out in the below of backup pad, set screw's screw rod section just is located screw-thread fit has fixation nut on the body of rod of backup pad below, fixation nut is in order to fix the dog locking in the backup pad. The connecting rod still can move towards the place ahead simultaneously at the in-process that moves up, consequently, carries on spacingly to it at the front end of supporting screw, combines the support nut, increases longitudinal support pole's support stability.
Preferably, a movable sliding seat is arranged below the two side brackets, the bottoms of the side brackets are arranged on the movable sliding seat, the movable sliding seat comprises a frame body which is of a rectangular frame structure and is horizontally arranged, roller devices are respectively arranged at four corners of the frame body, each roller device comprises a roller seat arranged on the upper surface of the frame body, the positions on the upper surface of the frame body and positioned at two sides of the roller seat are respectively and fixedly connected with a roller seat support, a roller seat sliding shaft extending along the opposite direction of the two roller seat supports is coaxially arranged on the side surfaces of the roller seats respectively facing to the roller seat supports at two sides of the roller seat, vertically extending guide sliding chutes are oppositely arranged on the inner side surfaces of the two roller seat supports, the far end of the roller seat sliding shaft is arranged in the guide sliding chute at one side of the roller seat sliding shaft and can be in sliding fit with the roller seat along the extending direction of the guide sliding chutes, rollers are arranged at the bottom of the roller seats, and through holes which can enable the rollers to extend out of the lower part of the frame body are arranged on the position of the frame body, when the wheel seat moves downwards along the vertical direction, the roller can extend out of the lower part of the frame body, when the wheel seat moves upwards along the vertical direction, the roller can be arranged above the frame body, the adjusting block is arranged above the wheel seat, the adjusting block is provided with an adjusting shaft which is in running fit with the adjusting block along the opposite direction of the two wheel seat supports, two ends of the adjusting shaft are respectively and fixedly connected with the wheel seat support at one side of the adjusting shaft, the section of the adjusting block along the direction vertical to the central line of the adjusting shaft is integrally rectangular, one group of opposite sides of the adjusting block and along the direction of the central line of the adjusting shaft have large opposite side distance is a rolling supporting side, the other group of opposite sides with small opposite side distance is a fixed supporting side, when the wheel seat moves upwards along the vertical direction and is abutted against the rolling supporting side of the adjusting block, the roller is arranged below the frame body, when the wheel seat moves upwards along the vertical direction and is abutted against the fixed, the roller is arranged above the frame body. When the positioning device is used, the sliding seat slides on the bridge floor, so that the movement is more convenient. When the sliding seat needs to be moved, one side of the frame body is lifted upwards, so that two wheel seats lifted on one side can slide downwards under the action of self gravity, the idler wheels below the wheel seats penetrate through idler wheel through holes to stretch out of the lower portion of the frame body, then the adjusting blocks above the wheel seats are operated, the rolling supporting edges on the wheel seats are opposite to the upper ends of the wheel seats in a rotating mode, the lifted frame body is put down, the idler wheels can contact with the bridge floor, the wheel seats are reversely made to ascend and then abut against the rolling supporting edges of the adjusting blocks, the wheel seats cannot move upwards under the supporting of the adjusting blocks, and the idler wheels exposed below the frame body can roll on the bridge floor. Two roller devices on the other side of the rack body are operated to enable the four rollers to contact the bridge floor, and the rack body is pushed away from the bridge floor, so that the rack body can move on the bridge floor through the rollers. After whole positioner removed the back that targets in place, lifted one side of support body again, the wheel seat whereabouts rotates the adjusting block again and makes the fixed stay limit relative with wheel seat upper end, puts down the support body after, and the gyro wheel is contradicted and is made the wheel seat rise behind the bridge floor, and then makes the support body lower surface contradict again on the bridge floor, behind the roller device of repetitive operation support body opposite side, just can arrange whole support body in on the bridge floor, and then carry out the location construction of reinforcing bar.
Preferably, the far end of the wheel seat sliding shaft protrudes outwards along the central line direction thereof to form a sliding part, the cross section of the sliding part is rectangular, and the sliding part is arranged in the guide sliding groove and can be in sliding fit with the guide sliding groove along the extension direction of the guide sliding groove. The wheel seat can be prevented from rotating.
Preferably, a handle rod is arranged on the rolling support edge of the adjusting block and positioned on any one side of the adjusting block, one end of the handle rod is fixedly connected with the adjusting block, and the center line of the handle rod and the center line of the adjusting shaft are positioned on the same plane and are perpendicular to each other. The operator can conveniently hold the handle rod to rotate the adjusting block.
As optimization, the bottom of the wheel seat support body is located, the positions on two sides of the guide sliding groove are respectively formed by outwards protruding support connecting blocks, and support fixing screws penetrate through the support connecting blocks along the vertical direction and are fixed on the frame body through the support fixing screws. After the two wheel seat supports are detached from the frame body, the wheel seats and the adjusting shafts are convenient to mount.
In conclusion, the beneficial effects of the invention are as follows: the steel bar framework positioning device is simple in structure, simple and convenient to operate, and capable of conveniently positioning the steel bar framework and the middle steel bar at the same time, and improves construction efficiency.
Drawings
For purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made in detail to the present invention as illustrated in the accompanying drawings, in which:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a mounting structure of the molding of the present invention;
FIG. 3 is a schematic view of a supporting and fixing structure of the supporting screw rod according to the present invention;
fig. 4 is a schematic view of an installation structure of the roller device of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 4, a bridge guardrail reinforcing steel bar positioning device in this embodiment includes side supports 1 which are arranged relatively and at intervals along the left-right direction, the side supports 1 are arranged vertically, a connecting support 2 is arranged between the two side supports 1, the connecting support 2 is fixedly connected with the two side supports 1, longitudinal positioning devices are arranged on the outer side surfaces of the two side supports 1, the two longitudinal positioning devices are symmetrically arranged along the left-right direction, the longitudinal positioning devices include a plurality of longitudinal supporting conduits 3 which are arranged on the side supports 1 at intervals along the vertical direction, the longitudinal supporting conduits 3 extend along the front-back direction, the distance between two adjacent longitudinal supporting conduits 3 positioned on the same side is sequentially increased from top to bottom, longitudinal supporting rods 4 which can be slidably matched with the longitudinal supporting conduits along the central line direction are arranged in the longitudinal supporting conduits 3, and a rod body in front of the longitudinal supporting conduits 4 and positioned in front of the longitudinal supporting conduits 3 is a support for supporting a middle reinforcing steel bar of a guardrail A supporting portion; a plurality of transverse positioning guide pipes 5 are uniformly fixed on the upper surface of the connecting bracket 2 at intervals along the left-right direction, the transverse positioning guide pipes 5 extend along the front-back direction, transverse positioning rods 6 which can be in sliding fit with the transverse positioning guide pipes along the central line direction are arranged in the transverse positioning guide pipes 5 in a penetrating manner, rod bodies of the transverse positioning rods 6 and positioned in front of the transverse positioning guide pipes are limiting parts for limiting the guardrail steel bar framework, clamping devices are arranged on the transverse positioning rods 6 and positioned at the positioning parts, each clamping device comprises a pull rod I7 and a pull rod II 8 which are arranged along the front-back direction at intervals, the pull rods I7 and the pull rods II 8 are positioned on the same plane and extend along the left-right direction, the pull rods I7 and the pull rods II 8 respectively penetrate through the transverse positioning rods 6 along the radial direction of the transverse positioning rods 6, and pressing strips 9 are arranged on any one side of the transverse positioning rods 6 and positioned at the limiting parts thereof in the left-right direction, layering 9 and transverse orientation 6 are located the coplanar and extend the setting along the fore-and-aft direction, pull rod I7 and pull rod II 8 and the one end that is located layering 9 respectively all link together with layering 9, pull rod I7 and pull rod II 8 and its one end of keeping away from layering 9 fixedly connected with stopper 10 respectively, pull rod I7 and pull rod II 8 and respectively its place stopper 10 and place transverse orientation pole between the body of rod on the cover be equipped with straining spring 11, straining spring 11 is in order to provide spring power on its place transverse orientation pole 6 for layering 9 compresses tightly.
In the specific embodiment, the pull rod i 7 is hinged with the pressing bar 9 through a hinge shaft i which is vertically arranged, an inserting column is formed by protruding one end of the pull rod ii 8 far away from the limiting block 10 outwards along the central line direction thereof, the diameter of the inserting column is larger than that of the pull rod ii 8, a counter bore for accommodating the inserting column is concavely arranged on the transverse positioning rod 6, a jack into which the inserting column can be inserted is concavely arranged on one side surface of the pressing bar 9 facing the transverse positioning rod 6, the inserting column is inserted into the jack and can be in sliding fit with the jack along the central line direction thereof, a positioning hole is penetratingly arranged on the inserting column along the vertical direction, a limiting hole communicated with the jack is arranged on the top surface of the pressing bar 9 and at the position corresponding to the jack along the vertical direction, the diameter of the positioning hole is the same as that of the limiting hole, when the inserting column is abutted against the bottom of the jack hole, the positioning hole is arranged along the central line with the limiting hole, the locating pin is arranged on the pressing strip 9 and corresponds to the position limiting hole, the locating pin can be inserted into the position limiting hole and can be in sliding fit with the locating pin along the direction of the central line of the locating pin, one end of the locating pin penetrates through the position limiting hole and is inserted into the locating hole, the other end of the locating pin protrudes outwards along the direction of the central line of the locating pin to form a limiting head, the diameter of the limiting head is larger than that of the locating pin, and when the limiting head is abutted to the pressing strip 9, the locating pin can be inserted into the locating hole.
In the specific embodiment, a rotation shaft is formed by protruding the tube body of the longitudinal support tube 3 towards the side of the longitudinal support tube 3, the rotation shaft is located at the middle position of the longitudinal support tube 3 along the length direction, the center line of the rotation shaft and the center line of the longitudinal support tube 3 are located on the same plane and perpendicular to each other, the rotation shaft is rotationally connected with the side support 1 on the side of the rotation shaft so as to enable the longitudinal support tube 3 to rotate around the center line direction of the rotation shaft, a connecting rod 12 is arranged at the rear position of the side support 1, the connecting rod 12 is vertically arranged, the connecting rod 12 is connected with all the longitudinal support rods 4 on the same side, one end of each longitudinal support rod 4 far away from the support part is hinged with the connecting rod 12 through a hinge shaft ii arranged along the left-right direction, the utility model discloses a supporting device, including longitudinal support pipe 3, lateral support 1, backup pad 13, support screw 14, supporting screw 14, threaded fit has support nut 15 on the pole body of support screw 14 and the below of backup pad 13, support nut 15 is with can the butt on the lower surface of backup pad 13 in order to carry out spacingly to support screw 14 upwards removal in order to carry out the spacing in order to move to the support screw 14 on the lower surface of backup pad 13.
In this embodiment, a handle having a semicircular arc structure is disposed on the rear side of the connecting rod 12 and at the middle position of the connecting rod 12 in the length direction, two ends of the handle are respectively fixed to the connecting rod 12, and the plane of the handle and the planes of the longitudinal support rods 4 on the side of the handle are located on the same plane.
In this embodiment, the positions of the lateral side of the lateral bracket 1 corresponding to the rotation shafts are respectively formed with a connection seat in a protruding manner, the connection seat is opposite to the position of the connection seat, a rotation shaft installation hole is concavely formed on one lateral side of the lateral bracket 1 along the left-right direction, a bearing arranged along the central line of the rotation shaft installation hole is installed in the rotation shaft installation hole, and the rotation shaft is inserted into the inner ring of the bearing and is rotationally connected with the connection seat through the bearing.
In this embodiment, the upper surface of the supporting plate 13 is provided with a stopper 16 at a position corresponding to the strip-shaped hole, the stopper 16 is located at one side of the stopper, the front of the supporting screw 14 is abutted against the stopper, a fixing screw 17 is arranged on the stopper 16 in a penetrating manner, a screw section of the fixing screw 17 penetrates through the strip-shaped hole and stretches out of the lower part of the supporting plate 13, a screw section of the fixing screw 17 is arranged on the rod body below the supporting plate 13 in a threaded fit manner, and a fixing nut 18 is arranged on the fixing nut 18 to lock and fix the stopper 16 on the supporting plate 13.
In the present embodiment, a movable sliding seat 19 is disposed below the two side brackets 1, the bottoms of the side brackets 1 are mounted on the movable sliding seat 19, the movable sliding seat 19 includes a frame body which is a rectangular frame structure and is horizontally disposed, roller devices are disposed at four corners of the frame body, each roller device includes a wheel seat 20 disposed on the upper surface of the frame body, wheel seat supports 21 are fixedly connected to positions on the upper surface of the frame body and located at two sides of the wheel seat 20, wheel seat sliding shafts 22 extending along opposite directions of the two wheel seat supports 21 are coaxially disposed on the side surfaces of the wheel seat 20 facing the wheel seat supports 21 on two sides, vertically extending guide sliding grooves are disposed on inner side surfaces of the two wheel seat supports 21, distal ends of the wheel seat sliding shafts 22 are disposed in the guide sliding grooves on one side where the wheel seat sliding shafts are located and can be in sliding fit with the wheel seat sliding grooves along the extending direction, rollers 23 are mounted at the bottom of the wheel seat 20, the frame body is provided with a roller through hole which can enable the roller 23 to extend out of the lower part of the frame body at a position below the wheel seat 20, when the wheel seat 20 moves downwards along the vertical direction, the roller 23 can extend out of the lower part of the frame body, when the wheel seat 20 moves upwards along the vertical direction, the roller 23 can be arranged above the frame body, an adjusting block 24 is arranged above the wheel seat 20, an adjusting shaft 25 which is matched with the adjusting block 24 in a rotating mode is arranged on the adjusting block 24 in a penetrating mode along the opposite direction of the two wheel seat supports 21, two ends of the adjusting shaft 25 are respectively fixedly connected with the wheel seat support 21 on one side where the adjusting shaft is located, the adjusting block 24 is integrally rectangular in section along the direction perpendicular to the central line of the adjusting shaft 25, one of two pairs of the adjusting block 24 and along the direction of the central line of the adjusting shaft 25 is a rolling support edge, the other pair of opposite edges with a large distance is a fixed support edge, when the wheel seat 20 moves upwards along the vertical direction and is abutted against the rolling support edge of the adjusting block 24, the roller 23 is disposed below the frame body, and when the roller seat 20 moves upward in the vertical direction and abuts against the fixed supporting edge of the adjusting block 24, the roller 23 is disposed above the frame body.
In this embodiment, the distal end of the wheel seat sliding shaft 22 protrudes outward along the central line thereof to form a sliding portion, the cross section of the sliding portion is rectangular, and the sliding portion is disposed in the guide sliding groove and can be slidably engaged therewith along the extending direction of the guide sliding groove.
In this embodiment, a handle 26 is disposed on the rolling support edge of the adjusting block 24 on any side thereof, one end of the handle 26 is fixedly connected to the adjusting block 24, and a center line of the handle 26 and a center line of the adjusting shaft 25 are on the same plane and perpendicular to each other.
In this embodiment, 21 seat bodies bottoms of wheel seat support are just located the position of direction spout both sides is outwards protruding respectively and is formed with the support connecting block, and it is equipped with support set screw and fixes through support set screw to wear to be equipped with along vertical direction on the support connecting block on the support body.
In the specific implementation process, the limit groove is formed in the rear side face of the stop block in an extending mode along the vertical direction and is a through groove, the cross section of the limit groove is in a semi-arc shape, the diameter of the cross section of the limit groove is the same as the outer diameter of the supporting screw rod, the rod body of the supporting screw rod is matched in the limit groove, and the stop block better blocks and limits the supporting screw rod through the limit groove. The top of wheel seat is upwards protruding to be formed with the plush copper, the roll of adjusting block supports the limit and the equal concave shrinkage pool that is equipped with on the fixed support edge and can make the plush copper insert in it and rather than clearance fit, works as when the top butt of wheel seat is at the roll of adjusting block and supports the limit or the fixed support edge, the plush copper can insert in the shrinkage pool, can avoid the adjusting block to take place to rotate, improves the rolling stability of gyro wheel.
Finally, it is noted that the above-mentioned embodiments illustrate rather than limit the invention, and that, while the invention has been described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. The utility model provides a bridge railing reinforcing bar positioner which characterized in that: the side supports are arranged oppositely and at intervals along the left-right direction, a connecting support is arranged between the two side supports, the connecting support is fixedly connected with the two side supports respectively, longitudinal positioning devices are arranged on the outer side surfaces of the two side supports respectively and symmetrically along the left-right direction, each longitudinal positioning device comprises a plurality of longitudinal supporting guide pipes which are arranged on the side supports at intervals along the vertical direction, the longitudinal supporting guide pipes extend along the front-back direction, the distance between every two adjacent longitudinal supporting guide pipes positioned on the same side is increased from top to bottom in sequence, longitudinal supporting rods which can be in sliding fit with the longitudinal supporting guide pipes along the central line direction of the longitudinal supporting guide pipes penetrate through the longitudinal supporting guide pipes, and rod bodies of the longitudinal supporting rods and positioned in front of the longitudinal supporting guide pipes are supporting parts for supporting middle reinforcing steel bars of the guardrail; the upper surface of the connecting bracket is uniformly fixed with a plurality of transverse positioning pipes at intervals along the left-right direction, the transverse positioning pipes extend along the front-back direction, transverse positioning rods which can be in sliding fit with the transverse positioning rods along the central line direction are arranged in the transverse positioning pipes in a penetrating way, rod bodies of the transverse positioning rods and positioned in front of the transverse positioning pipes are limiting parts for limiting the guardrail steel bar framework, clamping devices are arranged on the transverse positioning rods and positioned at the positioning parts, each clamping device comprises a pull rod I and a pull rod II which are arranged at intervals along the front-back direction, the pull rods I and II are positioned on the same plane and extend along the left-right direction, the pull rods I and II respectively penetrate through the transverse positioning rods along the radial direction of the transverse positioning rods, pressing strips are arranged on any side of the transverse positioning rods, the positions of the limiting parts of the transverse positioning rods are positioned on the same plane and extend along the front-back direction, the pull rod I and the pull rod II are respectively positioned at one end of the pressing strip and are connected with the pressing strip, the pull rod I and the pull rod II are respectively and fixedly connected with a limiting block at one end far away from the pressing strip, and a tensioning spring is sleeved on a rod body between the limiting block of the pull rod I and the pull rod II and the transverse positioning rod of the pull rod I and the pull rod II and can provide spring force for the pressing strip to be tightly pressed on the transverse positioning rod of the pressing strip;
the pipe body of the longitudinal support pipe faces one side of the longitudinal support pipe, a rotating shaft is formed on the side face of one side of the side support in a protruding mode, the rotating shaft is located in the middle position of the longitudinal support pipe along the length direction of the longitudinal support pipe, the center line of the rotating shaft and the center line of the longitudinal support pipe are located on the same plane and are perpendicular to each other, the rotating shaft and the side support on one side of the longitudinal support pipe are connected in a rotating mode to enable the longitudinal support pipe to rotate around the center line direction of the rotating shaft, a connecting rod is arranged on the side support behind the side support and is vertically arranged and connected with all the longitudinal support rods on the same side of the longitudinal support pipe, one end, far away from the support portion, of each longitudinal support rod is hinged to the corresponding connecting rod through a hinge shaft II arranged in the left-right direction, a support plate is arranged on the side support and on the topmost longitudinal, backup pad and its place one side collateral branch frame fixed connection, the position of the connecting rod top that just is located its place one side in the backup pad is worn to be equipped with along the bar hole that the fore-and-aft direction was followed along vertical direction, the outside arch of the upper end of connecting rod along its central line direction is formed with supporting screw, supporting screw's upper end is passed in the bar hole and is stretched out in the top of backup pad, supporting screw's pole body can move along bar hole extending direction in the bar hole, supporting screw just is located the pole body of backup pad below and has the support nut in screw-thread fit, the support nut is in order to carry on spacingly with the upward movement to supporting screw with can the butt on the lower surface of backup pad.
2. The bridge railing reinforcing bar positioning device of claim 1, wherein: the pull rod I is hinged and connected with the pressing strip through a hinge shaft I which is vertically arranged, one end, far away from the limiting block, of the pull rod II protrudes outwards along the direction of the central line of the pull rod II to form an insertion column, the diameter of the insertion column is larger than that of the pull rod II, a counter bore for accommodating the insertion column is concavely arranged on the transverse positioning rod, a jack into which the insertion column can be inserted is concavely arranged on one side surface of the pressing strip, facing the transverse positioning rod, a positioning hole is formed in the vertical direction in a penetrating mode in the side surface of the pressing strip, the insertion column is inserted into the jack and can be in sliding fit with the jack along the direction of the central line of the jack, a positioning hole is penetratingly arranged on the insertion column along the vertical direction, a limiting hole communicated with the jack is formed in the top surface of the pressing strip and corresponds to the position of the jack along the vertical direction, the diameter of the positioning hole is the same as that of the limiting hole, when the insertion column is abutted against the bottom of the jack, the positioning hole and the limiting hole are arranged on the pressing strip and correspond to the limiting hole, the locating pin can insert in spacing downthehole and can follow its central line direction rather than sliding fit, and the one end of locating pin is passed in spacing hole and is inserted in the locating hole, and the other end of locating pin is outwards protruding along its central line direction and is formed with the spacing head, and the diameter of spacing head is greater than the diameter of locating pin, and when spacing head butt was in on the layering, the locating pin was in order to insert in the locating hole.
3. The bridge railing reinforcing bar positioning device of claim 1, wherein: the rear side face of the connecting rod is provided with a handle which is integrally in a semi-circular arc structure at the middle position in the length direction of the connecting rod, two ends of the handle are fixed with the connecting rod respectively, and the plane of the handle and all planes of the longitudinal support rods on one side of the plane are located on the same plane.
4. The bridge railing reinforcing bar positioning device of claim 1, wherein: the rotary shaft connecting device is characterized in that connecting seats are formed on the outer side face of the side support in a protruding mode respectively at positions corresponding to the rotary shaft, the connecting seats are back to the side face of one side of the side support, a rotary shaft mounting hole is formed in the side face of one side of the side support along the left-right direction in a concave mode, a bearing arranged along the center line of the rotary shaft mounting hole is installed in the rotary shaft mounting hole, and the rotary shaft is inserted into the inner ring of the bearing and is connected with the connecting seats in a rotating mode through the bearing.
5. The bridge railing reinforcing bar positioning device of claim 1, wherein: the upper surface of backup pad just corresponds the position in bar hole is provided with the dog, and the dog is located its place one side the place ahead of support screw rod and rather than inconsistent wears to be equipped with set screw on the dog, set screw's screw rod section wear too the bar hole just stretch out in the below of backup pad, set screw's screw rod section just is located screw-thread fit has fixation nut on the body of rod of backup pad below, fixation nut is in order to fix the dog locking in the backup pad.
6. The bridge railing reinforcing bar positioning device of claim 1, wherein: a movable sliding seat is arranged below the two side supports, the bottom of each side support is arranged on the movable sliding seat, the movable sliding seat comprises a frame body which is of a rectangular frame structure and is horizontally arranged, roller wheel devices are arranged at four corners of the frame body respectively, each roller wheel device comprises a wheel seat arranged on the upper surface of the frame body, wheel seat supports are fixedly connected to the upper surface of the frame body and positioned on two sides of the wheel seat respectively, wheel seat sliding shafts extending along the opposite directions of the two wheel seat supports are coaxially arranged on the side surfaces of the wheel seats respectively facing the wheel seat supports on the two sides of the wheel seat, guide sliding chutes extending vertically are oppositely arranged on the inner side surfaces of the two wheel seat supports, the far ends of the wheel seat sliding shafts are arranged in the guide sliding chutes on one side of the wheel seat sliding shafts and can be in sliding fit with the wheel seat along the extending directions of the guide sliding chutes, rollers are arranged at the bottom of the wheel seats, roller wheel holes capable of enabling the rollers to extend out of the lower part of the frame body are formed in the positions of the frame body, when the wheel seat moves downwards along the vertical direction, the roller can extend out of the lower part of the frame body, when the wheel seat moves upwards along the vertical direction, the roller can be arranged above the frame body, the adjusting block is arranged above the wheel seat, the adjusting block is provided with an adjusting shaft which is in running fit with the adjusting block along the opposite direction of the two wheel seat supports, two ends of the adjusting shaft are respectively and fixedly connected with the wheel seat support at one side of the adjusting shaft, the section of the adjusting block along the direction vertical to the central line of the adjusting shaft is integrally rectangular, one group of opposite sides of the adjusting block and along the direction of the central line of the adjusting shaft have large opposite side distance is a rolling supporting side, the other group of opposite sides with small opposite side distance is a fixed supporting side, when the wheel seat moves upwards along the vertical direction and is abutted against the rolling supporting side of the adjusting block, the roller is arranged below the frame body, when the wheel seat moves upwards along the vertical direction and is abutted against the fixed supporting side of the adjusting block, the roller is arranged above the frame body.
7. The bridge railing reinforcing bar positioning device of claim 6, wherein: the far end of the wheel seat sliding shaft protrudes outwards along the direction of the central line thereof to form a sliding part, the cross section of the sliding part is rectangular, and the sliding part is arranged in the guide sliding groove and can be in sliding fit with the guide sliding groove along the extending direction of the guide sliding groove.
8. The bridge railing reinforcing bar positioning device of claim 6, wherein: and a handle rod is arranged on the rolling support edge of the adjusting block and positioned on any side of the adjusting block, one end of the handle rod is fixedly connected with the adjusting block, and the central line of the handle rod and the central line of the adjusting shaft are positioned on the same plane and are mutually vertical.
9. The bridge railing reinforcing bar positioning device of claim 6, wherein: the wheel seat support seat body bottom just is located the position of direction spout both sides is outwards protruding respectively and is formed with the support connecting block, and it is equipped with support set screw and fix through support set screw to wear to be equipped with along vertical direction on the support connecting block on the support body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911214377.6A CN110847033B (en) | 2019-12-02 | 2019-12-02 | Bridge guardrail steel bar positioning device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911214377.6A CN110847033B (en) | 2019-12-02 | 2019-12-02 | Bridge guardrail steel bar positioning device |
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| CN110847033A CN110847033A (en) | 2020-02-28 |
| CN110847033B true CN110847033B (en) | 2021-07-27 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113585077A (en) * | 2021-07-13 | 2021-11-02 | 江苏镇江路桥工程有限公司 | Pier embedded steel bar positioning device |
| CN115749296B (en) * | 2022-11-08 | 2024-05-24 | 中建八局第二建设有限公司 | Reinforcing engineering newly-increased beam bar planting positioning device |
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