CN220080830U - Large-section high-reinforcement-rate beam slow-bonding prestress steel strand positioning clamp - Google Patents

Abstract

The utility model discloses a large-section high-reinforcement-rate beam slow-bonding prestress steel strand positioning clamp which comprises two clamp handles connected in a hinged mode, wherein a clamp mouth is arranged at the front end of each clamp handle, clamp shafts enabling the two clamp handles to be hinged are arranged at the rear end of each clamp mouth, concave bearing parts are arranged at two sides of each clamp mouth, positioning components are arranged on each clamp handle and comprise bearing hooks movably connected at the front end of each clamp handle and adjusting rotating wheels arranged at the rear end of each clamp handle, a shaft rod is arranged in the center of each adjusting rotating wheel and is connected in each clamp handle in a pivoted mode, clamping grooves are formed in the clamp handles in the front-rear direction, parts of the bearing hooks are clamped in the clamping grooves, a transmission mechanism is arranged between each bearing hook and each adjusting rotating wheel, and the bearing hooks can be controlled to lift in the clamping grooves through the transmission mechanism in a rotatable mode. The clamp mouth is inserted into the beam rib, and the bearing part can widen the gap between the steel bars so as to better penetrate into the beam; after the steel strand penetrates into the beam bottom, the bearing height of the steel strand can be adjusted, so that the steel strand reaches the design height, the construction difficulty in complex steel bars can be reduced, and the construction time is saved.

Description

Large-section high-reinforcement-rate beam slow-bonding prestress steel strand positioning clamp

Technical Field

The utility model belongs to the technical field of steel strand auxiliary installation devices, and particularly relates to a slow-bonding prestress steel strand positioning clamp for a large-section high-reinforcement-rate beam.

Background

The prestress is to improve the service performance of the structure, compressive stress is pre-applied to the structure during construction, and the prestress can fully or partially counteract tensile stress caused by load during the service of the structure, so that the structural damage is avoided, and the prestress is commonly used for concrete structures. The prestressed concrete structure is characterized in that before the structure bears load, pressure is applied to the structure in advance, so that compressive stress is generated in the tensile zone concrete when external load acts on the structure, the tensile stress generated by the external load is counteracted or reduced, and the structure does not generate cracks or cracks later under the normal use condition.

The slow bonding prestressing technique is a new prestressing technique developed after the unbonded and bonded prestressing technique. The slow-bonding prestress absorbs the construction characteristic of no bonding and has the mechanical characteristic of bonding. The construction is the same as unbonded prestress, the arrangement is flexible, a single-hole anchorage device is adopted, a corrugated pipe is not required to be penetrated, and grouting is not required. After the retarder is solidified, the adhesive effect is finally achieved in mechanics.

In the construction operation process of the prestressed steel strand, as the section of the prestressed beam is larger, the density of the steel bar is larger, the operation space is narrower during construction, hands and tools are difficult to stretch into the beam, and when the position of the steel strand needs to be pulled, the operation is difficult to complete in a narrower working surface, so that the threading process is very difficult. In addition, the narrow working surface also makes the position adjustment of the steel strand very difficult, and the time and the labor are consumed in the construction process due to the problems.

Disclosure of Invention

The utility model aims to provide a slow bonding prestress steel strand positioning clamp for a large-section high-reinforcement-rate beam, which solves the problems of difficult threading in a large-section high-density beam on site, simplifies the operation flow, saves the construction time and improves the working efficiency.

The utility model is realized by the following technical scheme:

the utility model provides a big cross-section high reinforcement ratio roof beam slowly bonds prestressing force steel strand wires positioning pliers, including two pincers handles of articulated connection, the front end of pincers handle is provided with the pincers mouth, the rear end of pincers mouth is provided with makes two pincers handle articulated pincers axle, the both sides of pincers mouth are equipped with indent supporting part, be equipped with the positioning subassembly on the pincers handle, the positioning subassembly is including setting up at pincers handle front end swing joint's supporting hook and setting up the regulation runner at pincers handle rear end, the center of regulating runner is equipped with the axostylus axostyle swivelling joint in pincers handle, be equipped with the draw-in groove along the fore-and-aft direction on the pincers handle, the part joint of supporting hook is provided with drive mechanism in the draw-in groove between supporting hook and the regulation runner, rotatable regulation supporting hook control through drive mechanism adjusts the supporting hook and goes up and down in the draw-in groove.

Further, the transmission mechanism comprises an inner clamp handle arranged in the clamping groove, the lower end of the inner clamp handle is fixedly connected with a supporting hook, clamping teeth are arranged on the handle body of the inner clamp handle, the upper portion of tooth form of the clamping teeth is an inclined surface, the lower portion of the tooth form of the clamping teeth is a horizontal surface, a push rod is arranged on the peripheral side surface of the shaft rod, and the shaft rod rotates to drive the push rod to be led into the horizontal surface of the clamping teeth from the inclined surface of the clamping teeth and then push the inclined surface of the clamping teeth to drive the inner clamp handle to lift.

Further, scales are arranged on the handle body of the clamp handle provided with the positioning assembly.

Further, a limiting clamp is arranged on the handle body of one of the two clamp handles, a limiting part is arranged at the free end of the limiting clamp, and the limiting part limits the unfolding angle of the two clamp handles by blocking the other clamp handle.

The utility model can be applied to the erection and installation of steel strands, the clamp mouth is inserted into the beam rib, and the bearing part can widen the gap between the steel bars so as to better penetrate into the beam; after the steel strand penetrates into the beam bottom, the rotating wheel is rotated to adjust the bearing height of the steel strand, so that the steel strand reaches the design height, and the aim of convenient construction is fulfilled. The steel strand steel wire construction device is scientific in design, reasonable in structure, simple to manufacture and convenient to use, construction difficulty in complex steel bars can be reduced, construction time is saved, the height of a steel strand is accurately controlled through adjusting the rotating wheel, and construction quality is improved. The environment-friendly and efficient use process greatly improves the working efficiency and is worthy of popularization and use.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an upper elevational view of the handles of the pliers of the present utility model;

FIG. 3 is a side view of the upper portion of the grip of the present utility model;

FIG. 4 is a front view of the transmission mechanism of the present utility model;

FIG. 5 is a front view of the lower portion of the grip of the present utility model;

fig. 6 is a side view of the lower portion of the grip of the present utility model.

In the figure: 1. a clamp handle; 11. a clamping groove; 2. a clamp mouth; 21. a support part; 3. a clamp shaft; 4. a support hook; 5. adjusting the rotating wheel; 51. a shaft lever; 6. a transmission mechanism; 61. an inner clamp handle; 611. latch teeth; 62. a push rod; 7. a limit clamp; 71. and a limiting part.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

As shown in fig. 1 to 6, a large-section high reinforcement ratio beam slow bonding prestress steel strand positioning clamp comprises two clamp handles 1 which are connected in a hinged manner, wherein a clamp mouth 2 is arranged at the front end of each clamp handle 1, a clamp shaft 3 which enables the two clamp handles 1 to be hinged is arranged at the rear end of each clamp mouth 2, bearing parts 21 are concavely arranged at two sides of each clamp mouth 2, a positioning component is arranged on each clamp handle 1, each positioning component comprises a bearing hook 4 which is movably connected at the front end of each clamp handle 1 and an adjusting rotating wheel 5 which is arranged at the rear end of each clamp handle 1, a shaft rod 51 is arranged at the center of each adjusting rotating wheel 5 and is pivotally connected in each clamp handle 1, clamping grooves 11 are formed in the clamp handles 1 along the front-rear direction, a transmission mechanism 6 is arranged between each bearing hook 4 and each adjusting rotating wheel 5, and the transmission mechanism 6 can enable the corresponding bearing hook 4 to lift in the clamping grooves 11 through rotating the adjusting rotating wheels 5.

In this embodiment, the transmission mechanism 6 includes an inner clamp handle 61 disposed in the clamping groove 11, the lower end of the inner clamp handle 61 is fixedly connected with the supporting hook 4, a clamping tooth 611 is disposed on the handle body of the inner clamp handle 61, the upper portion of the tooth profile of the clamping tooth 611 is an inclined plane, the lower portion is a horizontal plane, the peripheral side surface of the shaft rod 51 is provided with a push rod 62, and the shaft rod 51 rotates to drive the push rod 62 to be guided from the inclined plane of the clamping tooth 611 to be pushed to the horizontal plane of the clamping tooth 611 so as to drive the inner clamp handle 61 to lift. The supporting hooks 4 are used for supporting the steel strands and controlling and adjusting the supporting height. In alternative embodiments, the transmission mechanism may directly use a rack and pinion arrangement. In addition, scales are arranged on the surface of the clamp handle 1 from the end part, and are used for determining the lifting position and the lifting height of the steel strand.

The pointed end of the clamp mouth 2 enables the positioning clamp to be more easily inserted into the densely distributed steel bar main beam, and simultaneously clamps or cuts off the steel bars. The bearing parts 21 concavely arranged at the two sides of the clamp mouth 2 can clamp the reinforcing steel bars at the two sides, and the spacing between the reinforcing steel bars is widened, so that the positioning clamp can go deep into the beam. The handle body of one of the two clamp handles 1 is provided with a limiting clamp 7, the free end of the limiting clamp 7 is provided with a limiting part 71, and the limiting part 71 limits the unfolding angle of the two clamp handles by blocking the other clamp handle 1, so that the spacing between the lower ends of the two clamp handles is limited, and the spacing between the reinforcing bars is prevented from being pulled too much.

The utility model can reduce the difficulty of adjusting the positions of the steel strands in the high girder, improve the construction efficiency and reduce the construction time. After the binding of the beam steel bars is completed, the pliers handle 1 is held by hand to enable the pliers mouth 2 to extend into the Liang Zhujin, the column bars are supported by the supporting parts 21, and the column bars are pried open, so that more sufficient operation space is provided. Meanwhile, the limit clamp 7 prevents the gap between the widened reinforcing steel bars from being too large to protect the finished product by limiting the opening and closing size of the clamp handle 1. After an operation space is provided, the positioning pliers are inserted into the beam, the positions are adjusted to enable the bearing hooks 4 to drag the steel strands, and the pliers mouth 2 is inserted into the bottom of the beam while the steel strands are lifted by adjusting the rotating wheels 5. The clamp handle 1 is provided with scales, and the lifting height of the steel strand can be read out through the scales, so that the construction accuracy is ensured. After the height is determined, the steel stranded wires are displaced along the length direction of the beam, pass through the positioning ribs, finish installation, reduce construction difficulty in the construction process and accordingly improve working efficiency.

It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims (4)

1. The utility model provides a big cross-section high reinforcement ratio roof beam slowly bonds prestressing force steel strand wires positioning pliers, a serial communication port, including two pincers handles (1) of articulated connection, the front end of pincers handle (1) is provided with pincers mouth (2), the rear end of pincers mouth (2) is provided with makes two pincers handles (1) articulated pincers axle (3), the both sides of pincers mouth (2) are equipped with indent supporting part (21), be equipped with the positioning subassembly on pincers handle (1), the positioning subassembly is including setting up supporting hook (4) at pincers handle (1) front end swing joint and setting up at pincers handle (1) rear end regulation runner (5), the center of regulation runner (5) is equipped with axostylus axostyle (51) pivoted connection in pincers handle (1), be equipped with draw-in groove (11) along the fore-and-aft direction on pincers handle (1), the part joint of supporting hook (4) is in draw-in groove (11), be provided with drive mechanism (6) between supporting hook (4) and regulation runner (5), but control regulation hook (4) are in the lift groove through drive mechanism (6).

2. The large-section high-reinforcement-rate beam slow-bonding prestress steel strand positioning clamp according to claim 1, wherein the transmission mechanism (6) comprises an inner clamp handle (61) arranged in the clamping groove (11), the lower end of the inner clamp handle (61) is fixedly connected with a supporting hook (4), a clamping tooth (611) is arranged on a handle body of the inner clamp handle (61), the upper portion of a tooth shape of the clamping tooth (611) is an inclined surface, the lower portion of the tooth shape is a horizontal surface, a push rod (62) is arranged on the peripheral side surface of the shaft rod (51), and the shaft rod (51) rotates to drive the push rod (62) to be led into from the inclined surface of the clamping tooth (611) and then to be pushed to the horizontal surface of the clamping tooth (611) so as to drive the inner clamp handle (61) to lift.

3. The large-section high reinforcement ratio beam slow bonding prestress wire positioning clamp according to claim 1, wherein a clamp handle (1) handle body provided with a positioning assembly is provided with scales.

4. A large-section high reinforcement ratio beam slow bonding prestress wire positioning clamp according to any one of claims 1-3, characterized in that a limiting clamp (7) is arranged on the handle body of one of the two clamp handles (1), a limiting part (71) is arranged at the free end of the limiting clamp (7), and the limiting part (71) limits the unfolding angle of the two clamp handles (1) by blocking the other clamp handle (1).