Quick connection structure of prestressed corrugated pipe

Abstract

This utility model relates to the field of corrugated pipe technology and discloses a quick connection structure for prestressed corrugated pipes, including a first corrugated pipe and a second corrugated pipe. A connecting unit is provided between the first and second corrugated pipes. The connecting unit includes two rings, which are respectively fitted onto the outer wall ends of the first and second corrugated pipes. This quick connection structure for prestressed corrugated pipes utilizes the cooperation between the first and second corrugated pipes and the connecting unit. A rotating threaded rod and a threaded cylinder engage in threaded transmission, causing the two rings to approach each other. Once the ends of the first and second corrugated pipes are in contact, power supply to the internal motor is stopped, thus completing the connection and limiting operation at the ends of the first and second corrugated pipes. This allows for a relatively quick initial connection of the two prestressed corrugated pipes, replacing laborious manual work and facilitating efficient construction operations.

Description

Technical Field

[0001] This utility model relates to the field of corrugated pipe connection technology, specifically a quick connection structure for prestressed corrugated pipes. Background Technology

[0002] Prestressed corrugated pipes are key components used in post-tensioned prestressed concrete structures. Their main function is to provide a channel for the prestressing tendons (such as steel strands) after concrete pouring, and to protect the tendons during tensioning, preventing corrosion from direct contact with the concrete, while also ensuring the free expansion and contraction of the tendons. Corrugated pipes are widely used in the construction industry, and prestressed corrugated pipes are required in the construction of cast-in-place continuous concrete beams for bridges. Currently, most prestressed corrugated pipes are connected by welding.

[0003] At present, there is a lack of quick connectors for use before connecting prestressed corrugated pipes on the market. Since most prestressed corrugated pipes have a large diameter, construction workers rely solely on manually aligning and stabilizing the two prestressed corrugated pipes to carry out the initial connection work, which is quite laborious and not conducive to the efficient development of construction work. Utility Model Content

[0004] The purpose of this invention is to provide a quick connection structure for prestressed corrugated pipes, which can quickly connect two prestressed corrugated pipes, thereby replacing laborious manual work and facilitating efficient construction operations, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick connection structure for prestressed corrugated pipes, comprising a first corrugated pipe and a second corrugated pipe, with a connecting unit between the first and second corrugated pipes. The connecting unit includes two rings, which are respectively fitted onto the outer wall ends of the first and second corrugated pipes. A convex plate is fixedly connected to the front side of the outer wall of each ring. A housing is fixedly connected to one side surface of one side of the convex plate. A threaded rod is rotatably connected to the inner wall of one side of the convex plate. One end of the threaded rod is fixedly connected to the output shaft of a motor installed inside the housing. A threaded cylinder is threadedly connected to the outer wall of the threaded rod. The threaded cylinder is fixedly connected to the convex plate on the other side. A pair of vertical cylinders are fixedly connected to the outer wall of each ring. A knob is rotatably connected to the top of each vertical cylinder. A lead screw is threadedly connected to the inner wall of the knob. A pair of insertion holes are opened at the bottom of each vertical cylinder. Insertion rods are provided inside the insertion holes. A stop block is fixedly connected to the bottom end of each insertion rod. The top end of the stop block is fixedly connected to the lead screw.

[0006] Preferably, the bottom end of the abutment block has a conical structure, and an anti-slip pad is fixedly connected to the bottom end of the abutment block.

[0007] Preferably, a handle is fixed to the front surface of the convex plate.

[0008] Preferably, two pairs of limiting rods are fixed to the surface of one side of the ring that faces the other side of the ring, and a portion of the limiting rods passes through the other side of the ring.

[0009] Preferably, auxiliary units are provided on the outer sides of both the threaded rod and the lead screw. The auxiliary units include: a first folding soft tube and a second folding soft tube. The first folding soft tube is fitted onto the outer side of the threaded rod. A first collar is fixedly connected to both ends of the first folding soft tube. One side of the first collar is rotatably connected to the convex plate through a sealed bearing, and the other side of the first collar is rotatably connected to the threaded cylinder through a sealed bearing. The second folding soft tube is fitted onto the outer side of the lead screw. A second ring is fixedly connected to both ends of the second folding soft tube. The bottom second ring is rotatably connected to a knob through a sealed bearing, and a circular plate is rotatably connected to the outer wall of the top second ring. The circular plate is fixedly connected to the lead screw.

[0010] Compared with the prior art, the beneficial effects of this utility model are: the quick connection structure of the prestressed corrugated pipe has the following advantages over traditional technology:

[0011] When connecting and limiting the ends of the first and second corrugated pipes through the cooperation between the first corrugated pipe, the second corrugated pipe, and the connecting unit, firstly, two rings are respectively fitted onto the outer walls of the first and second corrugated pipes. Then, the knob is rotated to make the abutment block abut against the outer wall of the corrugated pipe. Then, the servo motor in the housing is started to make the threaded rod rotate. The threaded rod in the rotating state performs threaded transmission with the threaded cylinder, thereby bringing the two rings closer together. When the ends of the first and second corrugated pipes are in contact, the power supply to the motor inside the housing is stopped, and the connection and limiting operation at the ends of the first and second corrugated pipes is completed. During the operation, the two prestressed corrugated pipes can be initially connected relatively quickly, replacing the laborious manual operation and facilitating efficient construction.

[0012] With the cooperation of the first bellows, the second bellows, the connecting unit and the auxiliary unit, the first folding soft tube and the second folding soft tube fitted on the outside of the threaded rod and the lead screw can wrap and protect the threaded rod and the lead screw, preventing impurities from adhering to their surface. Moreover, the first folding soft tube and the second folding soft tube can be compressed and stretched without affecting their transmission operation, which is conducive to the long-term stable use of the device. Attached Figure Description

[0013] The above and other features, advantages, and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. Throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the originals and elements are not necessarily drawn to scale.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 for Figure 1 Side sectional view at point A in the middle;

[0016] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0017] Figure 4 for Figure 1 A magnified view of point C in the middle.

[0018] In the diagram: 1. First corrugated pipe, 2. Second corrugated pipe, 3. Ring, 4. Convex plate, 5. Housing, 6. Threaded rod, 7. Threaded cylinder, 8. Vertical cylinder, 9. Knob, 10. Lead screw, 11. Insertion hole, 12. Insert rod, 13. Stop block, 14. Anti-slip pad, 15. Handle, 16. First folding soft cylinder, 17. First collar, 18. Second folding soft cylinder, 19. Second collar, 20. Circular piece, 21. Limiting rod. Detailed Implementation

[0019] 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.

[0020] Please see Figures 1-4 This utility model provides a technical solution: a quick connection structure for prestressed corrugated pipes, including a first corrugated pipe 1 and a second corrugated pipe 2, with a connecting unit between the first corrugated pipe 1 and the second corrugated pipe 2. The connecting unit includes two rings 3, which are respectively fitted onto the outer wall ends of the first corrugated pipe 1 and the second corrugated pipe 2. A protruding plate 4 is fixedly connected to the front side of the outer wall of the ring 3. A housing 5 is fixedly connected to one side surface of one side of the protruding plate 4. A threaded rod 6 is rotatably connected to the inner wall of one side of the protruding plate 4. One end of the ring is fixedly connected to the output shaft of the motor installed inside the housing 5. The outer wall of the threaded rod 6 is threadedly connected to the threaded cylinder 7. The threaded cylinder 7 is fixedly connected to the protruding plate 4 on the other side. A pair of vertical cylinders 8 are fixedly connected to the outer wall of the ring 3. The top of the vertical cylinder 8 is rotatably connected to the knob 9. The inner wall of the knob 9 is threadedly connected to the lead screw 10. A pair of insertion holes 11 are opened at the bottom of the vertical cylinder 8. Insertion rods 12 are provided inside the insertion holes 11. The bottom end of the insertion rods 12 is fixedly connected to the stop block 13. The top end of the stop block 13 is fixedly connected to the lead screw 10.

[0021] In the specific implementation process, it is worth noting that when it is necessary to connect and limit the first corrugated pipe 1 and the second corrugated pipe 2, firstly, two rings 3 are respectively fitted onto the outer walls of the first corrugated pipe 1 and the second corrugated pipe 2. The rings 3 are made of high-strength, corrosion-resistant metal materials, such as stainless steel, to ensure long-term stable use in complex construction environments. Furthermore, their inner diameter is compatible with the outer diameter of the corrugated pipe, allowing for a tight fit against the outer wall of the corrugated pipe and preventing loosening during connection. When fitting them, ensure the rings 3 are accurately positioned, aligning their ends with the ends of the corrugated pipes, for subsequent connection. The operation provides a good foundation. Next, rotate knob 9. Knob 9 has anti-slip textures on its surface for easy operation. As knob 9 rotates, lead screw 10 moves linearly within the vertical cylinder 8, pushing the abutment block 13 closer to the outer wall of the bellows, ultimately causing the abutment block 13 to press firmly against the outer wall of the bellows. The abutment block 13 is made of a rubber material with a certain degree of elasticity, ensuring a firming force while preventing damage to the outer wall of the bellows. The housing 5 houses a servo motor and a battery pack that powers it. This battery pack is rechargeable and reusable. The front of the housing 5 is equipped with a... The control switch controls the start and stop of the motor. The outer wall of the insertion rod 12 and the inner wall of the insertion hole 11 are in clearance fit. Clearance fit refers to a fit with clearance (including a minimum clearance of zero). The servo motor in the housing 5 is started. The servo motor has the characteristic of precisely controlling the speed and direction of rotation. It can adjust the rotation speed of the threaded rod 6 according to actual needs, so that the threaded rod 6 rotates. The threaded rod 6 and the threaded cylinder 7 are threadedly driven in the rotating state. The threaded rod 6 and the threaded cylinder 7 adopt high-precision thread processing technology to ensure a tight fit between the threads and smooth transmission. As the threaded rod 6 rotates, the threaded cylinder 7 will move along the threaded rod 6. The axial linear motion causes the two rings 3 to move closer together. During this process, the closing distance of the two rings 3 can be precisely controlled by controlling the number of rotations of the servo motor, ensuring that the ends of the first corrugated pipe 1 and the second corrugated pipe 2 can be accurately fitted. After the ends of the first corrugated pipe 1 and the second corrugated pipe 2 are fitted, the power supply to the motor inside the housing 5 is stopped, thus completing the connection and limiting operation at the ends of the first corrugated pipe 1 and the second corrugated pipe 2. During the operation, the two prestressed corrugated pipes can be initially connected relatively quickly, replacing the laborious manual operation and facilitating efficient construction.

[0022] Furthermore, the bottom end of the abutment block 13 has a conical structure, and an anti-slip pad 14 is fixedly attached to the bottom end of the abutment block 13.

[0023] In the specific implementation process, it is worth noting that the tapered abutment 13 can better adapt to the curvature of the outer wall of the bellows, increase the contact area with the bellows, and improve the clamping effect. The anti-slip pad 14 is made of rubber material with a high coefficient of friction and has small protrusions on its surface, which further enhances the friction between it and the outer wall of the bellows, prevents relative sliding during the connection process, and ensures the stability of the connection.

[0024] Furthermore, a handle 15 is fixedly attached to the front surface of the convex plate 4.

[0025] In the specific implementation process, it is worth noting that the handle 15 adopts an ergonomic design and is covered with a soft rubber sleeve. The operator can comfortably hold the handle 15, which facilitates the handling and adjustment of the connecting structure. At the same time, the handle 15 and the convex plate 4 are fixedly connected by bolts, which is firm and reliable and can withstand a certain amount of external force, making it convenient for the user to apply force to the convex plate 4.

[0026] Furthermore, two pairs of limiting rods 21 are fixed to the surface of one side ring 3 that is close to the other side ring 3, and a part of the limiting rods 21 passes through the other side ring 3.

[0027] In the specific implementation process, it is worth noting that the limiting rod 21 is made of high-strength alloy steel, which has sufficient rigidity and strength. During the process of the two rings 3 approaching each other, the limiting rod 21 plays a guiding and limiting role, preventing the rings 3 from shifting during the movement, ensuring that the two rings 3 can move accurately relative to each other, and ensuring the connection accuracy. At the same time, the limiting rod 21 and the rings 3 adopt a clearance fit, which can not only ensure the smooth sliding of the limiting rod 21, but also avoid poor limiting effect due to excessive clearance.

[0028] Furthermore, auxiliary units are provided on the outer sides of both the threaded rod 6 and the lead screw 10. The auxiliary units include: a first folding soft cylinder 16 and a second folding soft cylinder 18. The first folding soft cylinder 16 is fitted on the outer side of the threaded rod 6. A first collar 17 is fixedly connected to both ends of the first folding soft cylinder 16. One side of the first collar 17 is rotatably connected to the convex plate 4 through a sealed bearing, and the other side of the first collar 17 is rotatably connected to the threaded cylinder 7 through a sealed bearing. The second folding soft cylinder 18 is fitted on the outer side of the lead screw 10. A second ring 19 is fixedly connected to both ends of the second folding soft cylinder 18. The bottom second ring 19 is rotatably connected to the knob 9 through a sealed bearing, and a circular piece 20 is rotatably connected to the outer wall of the top second ring 19. The circular piece 20 is fixedly connected to the lead screw 10.

[0029] In the specific implementation process, it is worth noting that the first folding soft tube 16 and the second folding tube 18 are made of high-strength, wear-resistant plastic material, which has good flexibility and elasticity. They can be compressed and stretched during the rotation of the threaded rod 6 and the movement of the threaded tube 7 without affecting their transmission operation. The sealed bearing can prevent dust, impurities and other contaminants from entering the auxiliary unit and ensure the normal operation of the auxiliary unit. It can also wrap and protect the lead screw 10, prevent impurities from adhering to its surface, and facilitate the long-term stable use of the device.

[0030] Working principle:

[0031] Preliminary connection and positioning work for the two prestressed corrugated pipes:

[0032] When connecting and limiting the ends of the first corrugated pipe 1 and the second corrugated pipe 2, firstly, two rings 3 are respectively fitted onto the outer walls of the first corrugated pipe 1 and the second corrugated pipe 2. Then, the knob 9 is rotated to make the stop block 13 abut against the outer wall of the corrugated pipe. Then, the servo motor in the housing 5 is started to make the threaded rod 6 rotate. The threaded rod 6 in the rotating state performs threaded transmission with the threaded cylinder 7, thereby bringing the two rings 3 closer together. When the ends of the first corrugated pipe 1 and the second corrugated pipe 2 are in contact, the power supply to the motor inside the housing 5 is stopped, and the connection and limiting operation at the ends of the first corrugated pipe 1 and the second corrugated pipe 2 is completed. During the operation, the two prestressed corrugated pipes can be initially connected relatively quickly.

[0033] Protection of critical transmission components in the device:

[0034] The first folding soft tube 16 and the second folding soft tube 18, which are fitted on the outside of the threaded rod 6 and the lead screw 10, can wrap and protect the threaded rod 6 and the lead screw 10, preventing impurities from adhering to their surfaces. Moreover, the first folding soft tube 16 and the second folding soft tube 18 can undergo compression and tensile deformation without affecting their transmission operation, which facilitates the long-term stable use of the device.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-connect structure for prestressed corrugated pipes, comprising a first corrugated pipe (1) and a second corrugated pipe (2), characterized in that: A connecting unit is provided between the first corrugated pipe (1) and the second corrugated pipe (2). The connecting unit includes two rings (3), which are respectively fitted onto the outer wall ends of the first corrugated pipe (1) and the second corrugated pipe (2). A protruding plate (4) is fixedly connected to the front side of the outer wall of the ring (3). A housing (5) is fixedly connected to one side surface of one side of the protruding plate (4). A threaded rod (6) is rotatably connected to the inner wall of one side of the protruding plate (4). One end of the threaded rod (6) is fixedly connected to the output shaft of the motor installed inside the housing (5). (6) has a threaded cylinder (7) on its outer wall. The threaded cylinder (7) is fixedly connected to the other side protrusion (4). A pair of vertical cylinders (8) are fixedly connected to the outer wall of the ring (3). A knob (9) is rotatably connected to the top of the vertical cylinder (8). A screw (10) is threadedly connected to the inner wall of the knob (9). A pair of insertion holes (11) are opened at the bottom of the vertical cylinder (8). An insertion rod (12) is provided inside the insertion hole (11). A stop block (13) is fixedly connected to the bottom of the insertion rod (12). The top of the stop block (13) is fixedly connected to the screw (10).

2. The quick connection structure for a prestressed corrugated pipe according to claim 1, characterized in that: The bottom end of the abutment (13) is a conical structure, and an anti-slip pad (14) is fixedly attached to the bottom end of the abutment (13).

3. The quick connection structure for a prestressed corrugated pipe according to claim 1, characterized in that: A handle (15) is fixed to the front surface of the convex plate (4).

4. The quick connection structure for a prestressed corrugated pipe according to claim 1, characterized in that: Two pairs of limiting rods (21) are fixed to the surface of one side of the ring (3) and the other side of the ring (3), with a part of the limiting rod (21) passing through the other side of the ring (3).

5. The quick connection structure for a prestressed corrugated pipe according to claim 1, characterized in that: The threaded rod (6) and the lead screw (10) are provided with auxiliary units on their outer sides. The auxiliary units include: a first folding soft tube (16) and a second folding soft tube (18). The first folding soft tube (16) is fitted on the outer side of the threaded rod (6). Both ends of the first folding soft tube (16) are fixedly connected to a first collar (17). One side of the first collar (17) is rotatably connected to the convex plate (4) through a sealed bearing. The other side of the first collar (17) is rotatably connected to the threaded cylinder (7) through a sealed bearing. The second folding soft tube (18) is fitted on the outer side of the lead screw (10). Both ends of the second folding soft tube (18) are fixedly connected to a second ring (19). The bottom end of the second ring (19) is rotatably connected to the knob (9) through a sealed bearing. The outer wall of the top end of the second ring (19) is rotatably connected to a disc (20). The disc (20) is fixedly connected to the lead screw (10).

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