An assembled bridge equipment towing drag

Abstract

The utility model discloses an assembled equipment on bridge is dragged drag link relates to drag link technical field, and it is including: first section, tail section no.

Description

Technical Field

[0001] This utility model relates to the field of traction tow bar technology, and in particular to an assembled bridge-mounted traction tow bar. Background Technology

[0002] In the field of bridge hydrological monitoring and safety protection, in order to assess the complex vortex flow field formed by structural disturbance near the bridge pier and the risk of foundation scour, it is often necessary to use measuring instruments to monitor flow rate and velocity in real time. Such monitoring is of great significance for calculating the time of flood peak passage, early warning of foundation instability, and providing a critical window period for flood control decision-making.

[0003] Currently, when deploying, positioning, or retrieving measuring instruments from the bridge into the water below, the common practice is to manually use a tow bar to drag a traction rope. However, the existing tow bar has a fixed length, which is difficult to adapt to different working distances. When the traction rope is too short, it is inconvenient to operate; when it is too long, the excess rope drags on the bridge surface, which is not only difficult to manage but also easy to trip the operators, posing a significant safety hazard. Utility Model Content

[0004] The purpose of this utility model is to provide an assembled bridge-mounted equipment traction rod in order to solve the above-mentioned problems.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an assembled bridge-mounted equipment traction boom, comprising:

[0006] The first section has two nylon drum wheels symmetrically arranged in the middle for rolling contact with the top of the bridge railing, and both ends of the first section are rotatably connected to connecting cylinders;

[0007] Tail section one and tail section two are detachably connected to both ends of the first section via the connecting tube. Both tail section one and tail section two are fixedly connected to fixed hooks on the outer side away from the first section, and hooks are connected to the outer side near the first section. Both tail section one and tail section two are provided with rounded chamfers at the end away from the first section to reduce rope wear.

[0008] A movable hook is provided on the outside of the second tail section and is located between the fixed hook and the buckle of the second tail section.

[0009] Preferably, the connecting cylinder has internal threads, and both tail section one and tail section two have threaded grooves on their outer sides away from the first section that are adapted to the thread size.

[0010] Preferably, the movable hook includes a sliding hook and a fixing ring. The sliding hook is sleeved on the outside of the tail section two, and the fixing ring is fixedly connected to the outside of the tail section two. A spring is connected between the sliding hook and the fixing ring, and a pin is provided at the bottom of the fixing ring.

[0011] Preferably, the bottom of the retaining ring and the pin are connected by a chain.

[0012] Preferably, the bottom of the sliding hook is provided with an insertion hole, and the bottom of the tail section two is provided with a plurality of limiting holes at equal intervals along its length. The pin can be selectively inserted into the insertion hole and any of the limiting holes to fix the relative position of the sliding hook in the tail section two.

[0013] Preferably, the fixed hooks on tail section one and tail section two face the same direction, while the sliding hook faces the opposite direction to the fixed hook.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0015] 1. In this application, the threaded connection between the first section and the two tail sections allows for flexible assembly according to the length of the traction rope. When the traction rope is short, tail section one is used for operation; when the traction rope is long, the full-length tow bar is assembled. The movable hook on tail section two is used to adjust the rope winding point, effectively storing and managing excessively long ropes, eliminating safety hazards, and adapting to different operating scenarios.

[0016] 2. In this application, the nylon drum wheel in the middle of the first section can change the sliding friction between the tow bar and the bridge railing into rolling friction, which greatly reduces the traction resistance. The rounded chamfer at the end of the tail section can smoothly transition the traction rope passing through the tube, effectively reducing the wear of the rope at the traction point and extending the service life of the rope. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall structure according to an embodiment of the present utility model is shown;

[0018] Figure 2 A schematic diagram of the first section structure according to an embodiment of the present utility model is shown;

[0019] Figure 3 A schematic diagram of the tail section two structure provided according to an embodiment of the present invention is shown;

[0020] Figure 4 A schematic diagram of the connection structure between the tail section and the head section according to an embodiment of the present invention is shown.

[0021] Legend:

[0022] 1. First section; 2. Connecting cylinder; 201. Thread; 3. Tail section one; 4. Tail section two; 401. Limiting hole; 5. Fixed hook; 6. Hook; 7. Nylon drum wheel; 8. Movable hook; 801. Sliding hook; 8011. Insertion hole; 802. Fixing ring; 803. Spring; 804. Chain; 805. Pin; 9. Threaded groove; 10. Rounded chamfer. Detailed Implementation

[0023] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1 and Figure 4 This utility model provides a technical solution: an assembled bridge-mounted equipment traction rod, including a first section 1, a tail section 1 3, a tail section 2 4, and a movable hook 8. Both ends of the first section 1 are rotatably connected to a connecting cylinder 2. The tail sections 1 3 and 2 4 are detachably connected to both ends of the first section 1 through the connecting cylinder 2. The connecting cylinder 2 and the ends of the first section 1 can rotate freely, simplifying the twisting operation during assembly. The first section 1, tail section 1 3, and tail section 2 4 are all made of high-strength 45# steel metal rods with an outer diameter of 20mm, which have sufficient strength and rigidity. The length of a single component is designed to be 600mm, and the total length after assembly is about 1800mm. This length can provide a good operating lever arm and facilitate transportation and storage. The entire traction rod is designed to bear a load of not less than 50kg.

[0025] The first section 1 has two symmetrically arranged nylon drum wheels 7 for rolling contact with the top of the bridge railing. The nylon material is wear-resistant and has a low coefficient of friction. The distance between the two nylon drum wheels 7 is designed to be 50mm. This distance allows it to stably "ride" on the top horizontal bar of most bridge railings, while effectively preventing lateral slippage. Its core function is to change the sliding friction between the tow bar and the bridge railing into rolling friction during operation, which can significantly reduce traction resistance.

[0026] Both tail section 3 and tail section 4 have fixed hooks 5 on their outer sides away from the first section 1 for attaching the traction rope. Both tail section 4 have hooks 6 on their outer sides near the first section 1 for securing the rope tail. Both tail section 4 have rounded chamfers 10 on their outer ends away from the first section 1 to reduce rope wear. This design allows for a smooth transition of the traction rope leading out or leading in from the end of the pole, effectively reducing the cutting wear caused by the rope coming into direct contact with sharp edges and extending the rope's service life.

[0027] Specifically, such as Figure 2 and 3 As shown, the inside of the connecting cylinder 2 is provided with a thread 201, and the outer sides of the tail section 3 and tail section 4, which are far from the head section 1, are provided with thread grooves 9 that are adapted to the size of the thread 201.

[0028] Specifically, such as Figure 3As shown, the movable hook 8 is located on the outside of the tail section 2 4 and between the fixed hook 5 and the hook 6 of the tail section 2 4. The movable hook 8 includes a sliding hook 801 and a fixing ring 802. The diameter of both the fixed hook 5 and the sliding hook 801 is 80mm. The size of the hook is sufficient to accommodate the traction rope connected to the instrument equipment.

[0029] A sliding hook 801 is sleeved on the outside of the tail section 2 4, and a fixing ring 802 is fixedly connected to the outside of the tail section 2 4. A spring 803 is connected between the sliding hook 801 and the fixing ring 802 to provide a restoring force. A pin 805 is provided at the bottom of the fixing ring 802. The bottom of the fixing ring 802 and the pin 805 are connected by a chain 804 to prevent the pin 805 from being lost during high-altitude operations.

[0030] Specifically, pin 805 is a ball pin (also known as a spring plunger or locating pin). The top of the pin 805 has a ball that can elastically extend and retract within a small range. The pressure of the internal spring causes the ball to protrude. When it is inserted into the limiting hole 401, the ball is pressed back, and then the spring force pushes it out again, locking it at the edge of the hole wall, thereby generating a slight locking force. This allows it to remain stably in the hole when not subjected to external force, effectively preventing accidental loosening due to equipment vibration, making it more reliable than ordinary pins.

[0031] The bottom of the sliding hook 801 is provided with a socket 8011, and the bottom of the tail section 4 is provided with a plurality of limiting holes 401 at equal intervals along its length. The pin 805 can be selectively inserted into the socket 8011 and any of the limiting holes 401 to fix the relative position of the sliding hook 801 in the tail section 4.

[0032] Specifically, such as Figure 1 As shown, the fixed hooks 5 on tail section 3 and tail section 4 face the same direction, while the sliding hook 801 faces the opposite direction to the fixed hook 5, so that the main traction rope and the rope segment used for winding adjustment are naturally separated in space, the force path is clear, and mutual entanglement and interference are avoided.

[0033] In summary, the assembled bridge-mounted traction boom provided in this embodiment is used as follows:

[0034] Short rope mode: Screw the threaded groove 9 at the end of the tail section 3 into the connecting cylinder 2 at one end of the first section 1 until it is tightened. At this time, the towing rod is two-sectioned. Set the nylon drum 7 of the first section 1 on the bridge railing, pass the traction rope of the connecting instrument through the tail section 3, and then hang the end of the rope directly into the fixed hook 5 of the tail section 3. Fix the end of the rope on the hook 6. The operator holds the rod of the tail section 3 and pushes it along the railing. The nylon drum 7 rolls forward, which is labor-saving.

[0035] Long rope mode: Screw tail section 3 and tail section 4 into the connecting tubes 2 at both ends of the first section 1 and tighten them. Pass the excessively long traction rope through tail section 3, first section 1 and tail section 4 in sequence, and then around the fixed hook 5 of tail section 4. Then, wrap the rope back and forth between the fixed hook 5 and the sliding hook 801 of tail section 4 several times. Adjust the position of the sliding hook 801 by using the pin 805 to tighten the rope. Finally, fix the end of the rope to the hook 6.

[0036] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A modular bridge traction boom, characterized in that, include: The first section (1) has two nylon drum wheels (7) symmetrically arranged in the middle for rolling contact with the top of the bridge railing. Both ends of the first section (1) are rotatably connected to connecting cylinders (2). Tail section one (3) and tail section two (4) are detachably connected to both ends of the first section (1) via the connecting tube (2). Both tail section one (3) and tail section two (4) are fixedly connected to fixed hooks (5) on the outer side away from the first section (1), and hooks (6) are connected to the outer side near the first section (1). Both tail section one (3) and tail section two (4) are provided with rounded chamfers (10) to reduce rope wear at the end away from the first section (1). A movable hook (8) is provided on the outside of the tail section two (4) and is located between the fixed hook (5) and the buckle (6) of the tail section two (4).

2. The assembled bridge-mounted equipment traction boom according to claim 1, characterized in that, The connecting cylinder (2) has a thread (201) inside, and the tail section one (3) and tail section two (4) are provided with thread grooves (9) that are adapted to the size of the thread (201) on the outer side away from the first section (1).

3. The assembled bridge-mounted equipment traction boom according to claim 1, characterized in that, The movable hook (8) includes a sliding hook (801) and a fixing ring (802). The sliding hook (801) is sleeved on the outside of the tail section two (4), and the fixing ring (802) is fixedly connected to the outside of the tail section two (4). A spring (803) is connected between the sliding hook (801) and the fixing ring (802), and a pin (805) is provided at the bottom of the fixing ring (802).

4. The assembled bridge-mounted equipment traction boom according to claim 3, characterized in that, The bottom of the retaining ring (802) and the pin (805) are connected by a chain (804).

5. The assembled bridge-mounted equipment traction boom according to claim 3, characterized in that, The bottom of the sliding hook (801) is provided with a socket (8011), and the bottom of the tail section (4) is provided with a plurality of limiting holes (401) at equal intervals along its length. The pin (805) can be selectively inserted into the socket (8011) and any limiting hole (401) to fix the relative position of the sliding hook (801) on the tail section (4).

6. The assembled bridge-mounted equipment traction boom according to claim 3, characterized in that, The fixed hooks (5) on the tail section one (3) and tail section two (4) are oriented in the same direction, while the sliding hook (801) is oriented in the opposite direction to the fixed hook (5).

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