Bridge prestressed steel beam penetrating auxiliary pushing device

Abstract

The utility model relates to bridge engineering construction technical field discloses bridge pre -stressed steel beam passes the auxiliary propelling device of bundle, including the shell, the bottom inner wall fixed connection of shell has the guide plate, the inside slide connection of guide plate has the motor block, the drive end fixed connection of motor block has two drive rods, two drive rods's far one side all fixed connection has the push block, the front and back both sides all fixed connection of motor block have the recessed plate, two recessed plate's inside all rotatory connections have the rotating plate, two rotating plate's similar one side all fixed connection have the protective housing, the left and right sides all slide connection for dismounting of dismounting subassembly in protective housing. In the utility model, the motor block moves to the guide plate under the connecting plate, and the motor block makes the drive rod let the push block move, makes the push block let the rotating plate rotate, makes two clamping pieces close to each other, realizes and lets the clamping and moving piece combine each other.

Description

Technical Field

[0001] This utility model relates to the field of bridge engineering construction technology, and in particular to an auxiliary propulsion device for threading prestressed steel strands in bridges. Background Technology

[0002] The process of threading prestressed steel strands into pre-designed prestressed ducts during bridge prestressed construction is a prerequisite for applying prestress. An auxiliary propulsion device is specifically designed to assist in threading the steel strands into the ducts, typically providing support, guidance, and propulsion. Because the steel strands are heavy and prone to sagging, and there is significant friction between them and the duct wall during threading, manual threading is not only difficult and inefficient but can also lead to duct damage or strand deformation due to strand misalignment or jamming, affecting construction quality. Therefore, an auxiliary propulsion device is needed. Its function is to provide stable support and propulsion, reduce friction between the steel strands and the duct, and guide the steel strands accurately and smoothly through the duct, thereby reducing construction difficulty, improving threading efficiency, ensuring the smooth progress of prestressed construction, and maintaining the quality of the bridge structure.

[0003] A bridge prestressed steel strand threading auxiliary propulsion device typically consists of a support and guiding mechanism, a power propulsion module, a control module, and a connecting frame. The support and guiding mechanism supports the steel strands to reduce sagging and guide their direction; the power propulsion module provides continuous propulsion force; the control module adjusts the propulsion speed and force; and the connecting frame integrates all components into a whole. These components work together to support the steel strands to prevent excessive friction with the ducts, overcome threading resistance with the help of the power module, and adapt to different working conditions through the control module, ensuring that the steel strands are efficiently and smoothly threaded into the ducts, thus solving the problem of manual threading.

[0004] In existing technologies, some bridge prestressed steel strand threading auxiliary propulsion devices are not operating, which can cause the steel strands to lose effective fixation and directional pushing force. This makes the steel strands prone to deviation, shaking, or jamming during the threading process, which not only increases the friction and collision with the inner wall of the duct, but also solves the above problems. Therefore, a bridge prestressed steel strand threading auxiliary propulsion device is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a bridge prestressed steel strand threading auxiliary propulsion device, which aims to improve the existing technology where the clamping parts and moving structure are not in operation, which causes the steel strand to lose effective fixation and directional pushing force, making the steel strand prone to deviation, shaking or jamming during the threading process, which not only increases the friction and collision with the inner wall of the duct.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A bridge prestressed steel strand threading auxiliary propulsion device includes a housing, a guide plate fixedly connected to the bottom inner wall of the housing, a motor block slidably connected inside the guide plate, two drive rods fixedly connected to the drive end of the motor block, a push block fixedly connected to the far side of each of the two drive rods, grooved plates fixedly connected to the front and rear sides of the motor block, rotating plates rotatably connected inside the two grooved plates, a protective shell fixedly connected to the near side of each of the two rotating plates, and disassembly components slidably connected to the left and right sides of the protective shell for disassembly.

[0008] As a further description of the above technical solution:

[0009] The disassembly assembly includes two movable rods, both of which are slidably connected to the inside of the protective shell. Both of the movable rods are fixedly connected to a force-applying ring, and both force-applying rings are fixedly connected to a spring on opposite sides.

[0010] As a further description of the above technical solution:

[0011] A fixing plate is fixedly connected to the rear side of the outer casing, and a motor tube is fixedly connected to the top of the fixing plate.

[0012] As a further description of the above technical solution:

[0013] The drive end of the motor tube is fixedly connected to a connecting plate, and the outside of the motor tube is fixedly connected to the rear side of the outer casing.

[0014] As a further description of the above technical solution:

[0015] The outer shell is fixedly connected to two fixing plates on both the left and right sides, and guide tubes are fixedly connected inside the two fixing plates.

[0016] As a further description of the above technical solution:

[0017] The far side of the two push blocks contacts the near side of the two rotating plates, and the outside of the two drive rods are slidably connected to the near side of the two groove plates;

[0018] As a further description of the above technical solution:

[0019] The outer side of the spring is slidably connected to the inside of the protective shell, and the outer side of the force-applying ring is slidably connected to the inside of the protective shell;

[0020] As a further description of the above technical solution:

[0021] Both protective shells are slidably connected to a fixing rod on adjacent sides, and clamping components are fixedly connected to adjacent sides of the fixing rods.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the motor block moves on the guide plate under the action of the connecting plate. The motor block causes the drive rod to move the push block, which in turn causes the rotating plate to rotate, thereby bringing the two clamping parts closer to each other. This achieves the combination of clamping and moving parts, and also enhances the stability of steel strand propulsion, avoiding deviation and jamming. At the same time, it simplifies the operation process and improves the efficiency of strand threading.

[0024] 2. In this utility model, the two moving rods move to apply force to the force ring, which in turn compresses the spring, causing the moving rods to disengage from the fixed rods, thus allowing the fixed rods to move. This enables the disassembly of the clamping device. In addition, it can flexibly adapt to different specifications of steel strands, improving the versatility of the device. This also facilitates equipment maintenance and extends its service life. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of the bridge prestressed steel strand threading auxiliary propulsion device proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the connecting plate of the bridge prestressed steel strand threading auxiliary propulsion device proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the clamping component of the bridge prestressed steel strand threading auxiliary propulsion device proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the structure of the fixing rod of the bridge prestressed steel strand threading auxiliary propulsion device proposed in this utility model.

[0029] Legend:

[0030] 1. Outer shell; 2. Guide plate; 3. Motor block; 4. Groove plate; 5. Rotating plate; 6. Drive rod; 7. Push block; 8. Protective shell; 9. Clamping component; 10. Moving rod; 11. Force ring; 12. Spring; 13. Fixing rod; 14. Guide tube; 15. Fixing plate one; 16. Motor tube; 17. Connecting plate; 18. Fixing plate two. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 2 and Figure 3 This utility model provides an embodiment of a bridge prestressed steel strand threading auxiliary propulsion device, comprising a housing 1, which serves as the foundation of the entire device, ensuring its stability and protecting the internal components. A guide plate 2 is fixedly connected to the bottom inner wall of the housing 1. The guide plate 2 receives the device's electrical drive for operation and stability. A motor block 3 is slidably connected inside the guide plate 2. Two drive rods 6 are fixedly connected to the drive end of the motor block 3, and push blocks 7 are fixedly connected to the two drive rods 6 at opposite ends. Under the action of the guide plate 2, the motor block 3 drives the drive rods. 6 is moved, causing its two pushing blocks 7 to move. The front and rear sides of the motor block 3 are fixedly connected to the grooved plates 4. The grooved plates 4 are fixed to the sides of the motor block 3, so they move with the motor block 3 to make it stable. The interior of the two grooved plates 4 is rotatably connected to the rotating plates 5. The rotating plates 5 receive the pushing force of the pushing blocks 7, so they move in a straight line to make it stable. The adjacent sides of the two rotating plates 5 are fixedly connected to the protective shells 8. The protective shells 8 protect the internal disassembly components to make them stable. The left and right sides of the protective shells 8 are slidably connected to the disassembly components for disassembly.

[0033] Reference Figure 2 and Figure 4 The disassembly assembly includes two movable rods 10, both of which are slidably connected to the inside of the protective shell 8. The movable rods 10 receive the pushing force from the operator to move and stabilize them. Each of the two movable rods 10 is fixedly connected to a force-applying ring 11, which receives the pushing force from the movable rods 10 to move and stabilize them. Each of the two force-applying rings 11 is fixedly connected to a spring 12 on its opposite side, which receives the pushing force from the force-applying ring 11 to compress it.

[0034] Reference Figures 1 to 3A fixing plate 15 is fixedly connected to the rear side of the outer casing 1. A motor tube 16 is fixedly connected to the top of the fixing plate 15. A connecting plate 17 is fixedly connected to the drive end of the motor tube 16. The motor tube 16 is externally fixedly connected to the rear side of the outer casing 1. The fixing plate 15 receives the driving force of the equipment and moves to fix the top motor tube 16. The motor tube 16 is the main driving source of the equipment, thus stabilizing its rotation. Under the action of the connecting plate 17, it transmits power to the guide plate 2. Fixing plates 18 are fixedly connected to both the left and right sides of the outer casing 1. The fixing plates 18 are detachable, making it convenient for operators to disassemble the internal clamping components. Guide tubes 14 are fixedly connected inside both fixing plates 18. The guide tubes 14 guide the steel bundle as the guide plate 2, so that the steel bundle moves stably in a straight line under the clamping action. The two pushing blocks 7 are located on opposite sides and connected to two... The rotating plate 5 is in contact with each other on its adjacent sides. The pushing block 7 receives the pushing force of the driving rod 6, thereby moving and causing the rotating plate 5 to rotate. The two driving rods 6 are slidably connected to the adjacent sides of the two grooved plates 4. The driving rods 6 receive the driving force of the motor block 3, thereby moving linearly and stabilizing the plate. The spring 12 is slidably connected to the inside of the protective shell 8. The force ring 11 is slidably connected to the inside of the protective shell 8. The force ring 11 receives the pushing force of the moving rod 10 and moves inside the protective shell 8. The force ring 11 also moves linearly due to the pushing force of the force ring 11, thus stabilizing the plate. The two protective shells 8 are slidably connected to the adjacent sides of the two protective shells 8. The adjacent sides of the fixed rods 13 are fixedly connected to the clamping parts 9. The fixed rods 13 are limited by the moving rods 10 and are also fixed to the clamping parts 9. The clamping parts 9 fix the steel bundle and stabilize it.

[0035] Working principle: First, the operator transmits the motor power from the motor tube 16 to the connecting plate 17. The connecting plate 17 then transmits power to the guide plate 2, allowing the motor block 3 to move linearly on the guide plate 2. The motor block 3 is driven by the guide plate 2, causing the drive rods 6 on both sides to move the push block 7, which in turn rotates the rotating plate 5. This brings the two clamping parts 9 closer together, thus fixing the steel strand. This achieves the combination of clamping and moving parts, and also enhances the stability of the steel strand propulsion, avoiding deviation and jamming. At the same time, it simplifies the operation process and improves the efficiency of threading the steel strand.

[0036] Then, the operator removes the two fixed plates 18 on both sides to facilitate the disassembly of the internal components. The operator holds the two movable rods 10 on both sides, causing the movable rods 10 to move the force ring 11, thereby causing the spring 12 to compress and disengage the movable rod 10 from the fixed rod 13. At this time, the two clamping parts 9 drive the fixed rod 13 to disengage from the protective shell 8, thus realizing the disassembly of the clamping device. In addition, it can flexibly adapt to different specifications of steel strands, improving the versatility of the device; thus facilitating equipment maintenance and extending its service life.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bridge prestressed steel strand threading auxiliary propulsion device, comprising a housing (1), characterized in that: A guide plate (2) is fixedly connected to the bottom inner wall of the outer shell (1). A motor block (3) is slidably connected inside the guide plate (2). Two drive rods (6) are fixedly connected to the drive end of the motor block (3). Push blocks (7) are fixedly connected to the far side of the two drive rods (6). Grooved plates (4) are fixedly connected to the front and rear sides of the motor block (3). Rotating plates (5) are rotatably connected inside the two grooved plates (4). Protective shells (8) are fixedly connected to the near side of the two rotating plates (5). Disassembly components for disassembly are slidably connected to the left and right sides of the protective shell (8).

2. The bridge prestressed steel strand threading auxiliary propulsion device according to claim 1, characterized in that: The disassembly assembly includes two movable rods (10), both of which are slidably connected to the outside of the protective shell (8). Both of the movable rods (10) are fixedly connected to the outside of the two movable rods (10), and springs (12) are fixedly connected to the opposite sides of the two force rings (11).

3. The bridge prestressed steel strand threading auxiliary propulsion device according to claim 1, characterized in that: A fixing plate (15) is fixedly connected to the rear side of the outer casing (1), and a motor tube (16) is fixedly connected to the top of the fixing plate (15).

4. The bridge prestressed steel strand threading auxiliary propulsion device according to claim 3, characterized in that: The drive end of the motor tube (16) is fixedly connected to a connecting plate (17), and the outside of the motor tube (16) is fixedly connected to the rear side of the outer shell (1).

5. The bridge prestressed steel strand threading auxiliary propulsion device according to claim 1, characterized in that: The outer shell (1) is fixedly connected to two fixing plates (18) on both the left and right sides, and guide tubes (14) are fixedly connected inside the two fixing plates (18).

6. The bridge prestressed steel strand threading auxiliary propulsion device according to claim 1, characterized in that: The two pushing blocks (7) are in contact with the two rotating plates (5) on opposite sides, and the two driving rods (6) are slidably connected to the two grooved plates (4) on opposite sides.

7. The bridge prestressed steel strand threading auxiliary propulsion device according to claim 2, characterized in that: The spring (12) is externally slidably connected to the inside of the protective shell (8), and the force ring (11) is externally slidably connected to the inside of the protective shell (8).

8. The bridge prestressed steel strand threading auxiliary propulsion device according to claim 2, characterized in that: A fixing rod (13) is slidably connected to one side of each of the two protective shells (8), and a clamping member (9) is fixedly connected to one side of each of the fixing rods (13).

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