CN218314273U - Structure for stretching steel bar in prestressed concrete pipe - Google Patents
Structure for stretching steel bar in prestressed concrete pipe Download PDFInfo
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- CN218314273U CN218314273U CN202220966829.7U CN202220966829U CN218314273U CN 218314273 U CN218314273 U CN 218314273U CN 202220966829 U CN202220966829 U CN 202220966829U CN 218314273 U CN218314273 U CN 218314273U
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- bearing frame
- prestressed concrete
- concrete pipe
- rod
- tensioning
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Abstract
The utility model discloses a structure that is used for intraductal reinforcing bar of stretch-draw prestressed concrete belongs to concrete pipe production technical field. The structure comprises a bearing frame and a clamping hand positioned in the bearing frame; one end of the bearing frame is provided with an opening, the outer wall of the other end of the bearing frame is provided with a hydraulic cylinder, and a piston rod of the hydraulic cylinder extends into the bearing frame and is fixed with the tail part of the clamping hand; the opening end of the clamping hand is provided with a T-shaped block which can be detached and used for fixing the reinforcing steel bars. The utility model discloses can replace artifical stretch-draw, improve stress accuracy and production efficiency, reduce the cost of labor.
Description
Technical Field
The utility model relates to concrete pipe production technical field, in particular to a structure that is used for the intraductal reinforcing bar of stretch-draw prestressed concrete.
Background
The longitudinal ribs at the female end of the prestressed concrete pipe are tensioned and anchored, the number of the longitudinal ribs is different from 16 groups to 60 groups according to the difference of pipe diameters DN400-2000, the single group of longitudinal ribs at the female end at present is tensioned by manual operation, and the problems of inaccurate stress, low efficiency and the like exist.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a structure that is used for intraductal reinforcing bar of stretch-draw prestressed concrete. The device can replace manual tension, improve stress accuracy and production efficiency, and reduce the labor cost.
In order to realize the purpose, the utility model discloses the technical scheme who takes does:
a structure for stretching a steel bar in a prestressed concrete pipe comprises a bearing frame and a clamping hand positioned in the bearing frame; one end of the bearing frame is provided with an opening, the outer wall of the other end of the bearing frame is provided with a hydraulic cylinder, and a piston rod of the hydraulic cylinder extends into the bearing frame and is fixed with the tail part of the clamping hand; the opening end of the clamping hand is provided with a T-shaped block which can be detached and used for fixing the reinforcing steel bars.
Further, the clamping hand comprises a connecting block and two parallel clamping plates; the connecting block is provided with fixing pins, and the tail parts of the two clamping plates are respectively hinged with the connecting block through the corresponding fixing pins.
Furthermore, a spring is arranged between the two clamping plates, one end of the spring is fixed with the upper clamping plate, and the other end of the spring is fixed with the lower clamping plate.
Further, at the open end of the clamping hand, both clamping plates are provided with bent edges which extend inwards and are used for restraining the T-shaped blocks.
The electric bicycle further comprises a motor and a threaded rod, wherein the motor is positioned between the two clamping plates and is fixedly connected with the force bearing frame through motor supporting rods on two sides; a threaded through hole matched with the threaded rod is formed in the center of the T-shaped block; the output shaft of the motor is connected with the threaded rod through the telescopic rod and applies torque to the threaded rod.
Further, the telescopic rod comprises an outer sleeve and an inner rod moving along the outer sleeve; a pressure spring which enables the inner rod to have an outward extending trend is sleeved on the inner rod exposed out of the outer sleeve; one end of the pressure spring is abutted against the edge of the outer sleeve, and the other end of the pressure spring is fixedly connected with the outer end of the inner rod.
Furthermore, the outer end of the inner rod is provided with a rectangular straight groove, and the inner end of the threaded rod is provided with a rectangular protrusion matched with the rectangular straight groove.
Furthermore, the inner wall surface of the bearing frame is also provided with a bulge for applying pressure to the clamping plate.
Furthermore, a reinforcing steel bar hole for fixing a reinforcing steel bar is formed in the T-shaped block; the reinforcing bar is downthehole still to be equipped with the detachable wedge that is used for the chucking reinforcing bar.
The utility model adopts the beneficial effects of the above technical scheme to produce lie in:
the utility model discloses a pneumatic cylinder direct drive stretch-draw reinforcing bar to through the rotatory threaded rod of motor, make the threaded rod outer end support on the concrete pipe, guarantee stretch-draw state's continuation, improve stress accuracy and production efficiency, reduce the cost of labor.
Drawings
Fig. 1 is a schematic structural diagram of the present invention without a T-block.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a top view of an embodiment of the invention.
Fig. 4 is a schematic diagram of a T-shaped block according to an embodiment of the present invention.
Fig. 5 is a schematic view of the opened gripper of fig. 1.
Fig. 6 is a schematic view of the gripper closure of fig. 1.
In the figure: 1. the device comprises a motor supporting rod, 2 parts of a bearing frame, 3 parts of a clamping handle, 3.1 parts of a connecting block, 3.2 parts of a fixing pin, 3.3 parts of a clamping plate, 4 parts of a hydraulic cylinder, 5 parts of a motor, 6 parts of an inner rod, 7 parts of an outer sleeve, 8 parts of a T-shaped block, 8.1 parts of a threaded rod, 8.2 parts of a wedge block, 9 parts of a reinforcing steel bar.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description.
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
A structure for stretching a steel bar in a prestressed concrete pipe comprises a bearing frame and a clamping handle positioned in the bearing frame; one end of the bearing frame is provided with an opening, the outer wall of the other end of the bearing frame is provided with a hydraulic cylinder, and a piston rod of the hydraulic cylinder extends into the bearing frame and is fixed with the tail part of the clamping handle; the open end of tong is equipped with the T type piece that can dismantle and be used for fixed reinforcing bar.
Further, the clamping hand comprises a connecting block and two parallel clamping plates; the connecting block is provided with fixing pins, and the tails of the two clamping plates are respectively hinged with the connecting block through the corresponding fixing pins.
Furthermore, a spring is arranged between the two clamping plates, one end of the spring is fixed with the upper clamping plate, and the other end of the spring is fixed with the lower clamping plate.
Further, at the open end of the clamping hand, both clamping plates are provided with bent edges which extend inwards and are used for restraining the T-shaped blocks.
The electric bicycle further comprises a motor and a threaded rod, wherein the motor is positioned between the two clamping plates and is fixedly connected with the force bearing frame through motor supporting rods on two sides; a threaded through hole matched with the threaded rod is formed in the center of the T-shaped block; the output shaft of the motor is connected with the threaded rod through the telescopic rod and applies torque to the threaded rod.
Further, the telescopic rod comprises an outer sleeve and an inner rod moving along the outer sleeve; a pressure spring which enables the inner rod to have an outward extending trend is sleeved on the inner rod exposed out of the outer sleeve; one end of the pressure spring is abutted against the edge of the outer sleeve, and the other end of the pressure spring is fixedly connected with the outer end of the inner rod.
Furthermore, the outer end of the inner rod is provided with a rectangular straight groove, and the inner end of the threaded rod is provided with a rectangular protrusion matched with the rectangular straight groove.
Furthermore, the inner wall surface of the bearing frame is also provided with a bulge for applying pressure to the clamping plate.
Furthermore, a reinforcing steel bar hole for fixing a reinforcing steel bar is formed in the T-shaped block; the reinforcing bar is downthehole still to be equipped with the detachable wedge that is used for the chucking reinforcing bar.
The following is a more specific example:
referring to fig. 1 to 6, the present embodiment includes a carrier 2, a clamping hand 3 in the carrier, a motor 5 and a threaded rod 8.1; one end of the bearing frame is provided with an opening, the outer wall of the other end of the bearing frame is provided with a hydraulic cylinder, and a piston rod of the hydraulic cylinder 4 extends into the bearing frame and is fixed with the tail part of the clamping hand;
the open end of tong is equipped with the T type piece that can dismantle and be used for the fixed reinforcing bar. The clamping hand comprises a connecting block and two parallel clamping plates; be equipped with fixed pin 3.2 on the connecting block, the afterbody of two splint is respectively through corresponding fixed pin and connecting block 3.1 hinged joint.
A spring is arranged between the two clamping plates, one end of the spring is fixed with the upper clamping plate, and the other end of the spring is fixed with the lower clamping plate.
At the open end of the clamping hand, both clamping plates are provided with bent edges which extend inwards and are used for restraining the T-shaped block.
The motor is positioned between the two clamping plates 3.3 and is fixedly connected with the force bearing frame through the motor supporting rods 1 at the two sides; a threaded through hole matched with the threaded rod is formed in the center of the T-shaped block; the output shaft of the motor is connected with the threaded rod through the telescopic rod and applies torque to the threaded rod.
The telescopic rod comprises an outer sleeve and an inner rod 6 moving along the outer sleeve; a pressure spring which enables the inner rod to have the trend of extending outwards is sleeved on the inner rod exposed out of the outer sleeve 7; one end of the pressure spring is abutted against the edge of the outer sleeve, and the other end of the pressure spring is fixedly connected with the outer end of the inner rod.
The outer end of the inner rod is provided with a rectangular straight groove, and the inner end of the threaded rod is provided with a rectangular bulge matched with the rectangular straight groove.
The inner wall surface of the bearing frame is also provided with a bulge for applying pressure to the clamping plate.
The T-shaped block 8 is provided with a reinforcing steel bar hole for fixing a reinforcing steel bar 9; the reinforcing bar is downthehole still to be equipped with the detachable wedge that is used for the chucking reinforcing bar.
When the concrete pipe reinforcing device is used, reinforcing steel bars on the concrete pipe penetrate through reinforcing steel bar holes of the T-shaped blocks, and then the reinforcing steel bars are fixed by wedging the wedge-shaped blocks 8.2 into the reinforcing steel bar holes; then the T-shaped block is constrained at the end part of the clamping hand, and the rectangular protrusion of the T-shaped block threaded rod is matched with the rectangular straight groove of the telescopic rod; then starting a hydraulic cylinder to pull the T-shaped block, so that the reinforcing steel bar is in a tensioning state; then the motor is started to make the threaded rod rotate and extend outwards to abut against the concrete pipe. And finally, turning off the motor, keeping the T-shaped block on the concrete pipe, and unloading the rest part. And finishing the continuous tensioning of the steel bars of the concrete pipe.
When the piston of the jack extends outwards, the spring rebounds and the clamping hand is opened; when the jack piston retracts inwards, the bulge applies pressure to the clamping plate, the clamping hand is closed, the T-shaped block is grasped, the T-shaped block continues to retract, and tensioning is achieved.
Claims (9)
1. A structure for stretching a steel bar in a prestressed concrete pipe is characterized by comprising a bearing frame and a clamping handle positioned in the bearing frame; one end of the bearing frame is provided with an opening, the outer wall of the other end of the bearing frame is provided with a hydraulic cylinder, and a piston rod of the hydraulic cylinder extends into the bearing frame and is fixed with the tail part of the clamping handle; the opening end of the clamping hand is provided with a T-shaped block which can be detached and used for fixing the reinforcing steel bars.
2. A structure for tensioning reinforcing steel bars in prestressed concrete pipes according to claim 1, characterized in that said gripping arm comprises a connecting block and two parallel clamping plates; the connecting block is provided with fixing pins, and the tail parts of the two clamping plates are hinged with the connecting block through the corresponding fixing pins.
3. A structure for tensioning reinforcing steel bars in a prestressed concrete pipe according to claim 2, wherein a spring is further provided between the two clamp plates, one end of the spring is fixed to the upper clamp plate, and the other end of the spring is fixed to the lower clamp plate.
4. A structure for tensioning reinforcement bars in prestressed concrete pipes according to claim 3, characterized in that at the open end of the clamping hands, both clamping plates are provided with a bent edge extending inwards and serving to constrain the T-block.
5. The structure for tensioning the steel bars in the prestressed concrete pipe as claimed in claim 2, further comprising a motor and a threaded rod, wherein the motor is positioned between the two clamping plates and fixedly connected with the force bearing frame through motor supporting rods on two sides; a threaded through hole matched with the threaded rod is formed in the center of the T-shaped block; the output shaft of the motor is connected with the threaded rod through the telescopic rod and applies torque to the threaded rod.
6. A structure for tensioning rebars in a prestressed concrete pipe according to claim 5, wherein said telescoping rod comprises an outer sleeve and an inner rod that moves along the outer sleeve; a pressure spring which enables the inner rod to have an outward extending trend is sleeved on the inner rod exposed out of the outer sleeve; one end of the pressure spring is abutted against the edge of the outer sleeve, and the other end of the pressure spring is fixedly connected with the outer end of the inner rod.
7. A structure for tensioning a steel bar in a prestressed concrete pipe according to claim 6, characterized in that the outer end of said inner rod is provided with a rectangular straight groove, and the inner end of the threaded rod is provided with a rectangular projection which is matched with the rectangular straight groove.
8. A structure for tensioning steel bars in a prestressed concrete pipe as recited in claim 5, wherein the inner wall surface of said force-bearing frame is further provided with a projection for applying pressure to the clamping plate.
9. A structure for tensioning reinforcing steel bars in a prestressed concrete pipe according to claim 1, wherein said T-shaped blocks are provided with reinforcing steel bar holes for fixing the reinforcing steel bars; the reinforcing bar is downthehole still to be equipped with the detachable wedge that is used for the chucking reinforcing bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220966829.7U CN218314273U (en) | 2022-04-25 | 2022-04-25 | Structure for stretching steel bar in prestressed concrete pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220966829.7U CN218314273U (en) | 2022-04-25 | 2022-04-25 | Structure for stretching steel bar in prestressed concrete pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218314273U true CN218314273U (en) | 2023-01-17 |
Family
ID=84831132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220966829.7U Active CN218314273U (en) | 2022-04-25 | 2022-04-25 | Structure for stretching steel bar in prestressed concrete pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218314273U (en) |
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2022
- 2022-04-25 CN CN202220966829.7U patent/CN218314273U/en active Active
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