Flexible anti-falling universal connecting device for cross arm of steel pipe pole

Abstract

The utility model provides a flexible anti-falling universal connecting device for a cross arm of a steel pipe pole. The flexible anti-falling universal connecting device is used for solving the problems that in the prior art, the cross arm needs to bear large weight, and the working space is small. The anti-falling universal connecting device comprises a cross arm fixed to a steel pipe pole, flexible connecting pieces are arranged on the two sides of the cross arm, the flexible connecting pieces are connected through anti-falling rods, each flexible connecting piece comprises L-shaped connecting pieces fixed to the two ends of the cross arm, the L-shaped connecting pieces are connected through fixing steel strands, each anti-falling rod comprises a connecting rod, and the two ends of each connecting rod are fixedly connected with lantern rings. The lantern rings are arranged on the adjacent fixed steel strands in a sleeving mode. According to the anti-falling device, the anti-falling rod can move along the fixed steel strand, so that a constructor has enough activity space when working on the cross arm. Compared with a traditional guardrail, the flexible connecting piece reduces direct pressure on the cross arm, and the service life of the cross arm can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit equipment maintenance, in particular to a universal flexible anti-falling connection device for a cross arm of a steel pipe pole. Background Art

[0002] Most of the steel tube towers are higher than 30m, belonging to the third-level and special high-altitude working environment. When working at high altitude, due to the lack of special anti-fall protection facilities, construction workers face serious threats to their personal safety. During the existing steel tube tower line inspection and maintenance process, construction workers are prone to high-altitude fall accidents due to the lack of suitable places to wear safety belts.

[0003] The existing Chinese patent application number 201920286791.7 discloses a steel pipe pole fall prevention device, which provides a suitable location for high-altitude construction workers to fasten their safety belts by setting up a fall arrester and a cross arm handrail. However, in order to support and improve the safety of the fall arrester, the cross arm handrail must be made of metal, and the track of the fall arrester must also be made of metal, which causes the cross arm to bear a large weight. In addition, the metal cross arm handrail will limit the working space of the construction workers to a certain extent, which will have a certain impact on the working efficiency. Utility Model Content

[0004] The utility model provides a flexible universal anti-falling connection device for a steel pipe pole cross arm, which solves the problems in the prior art that the cross arm needs to bear a heavy weight and the working space for construction workers is small.

[0005] The technical solution of the utility model is achieved in this way:

[0006] A universal flexible anti-fall connection device for a steel pipe pole cross arm, comprising a cross arm fixed on the steel pipe pole, flexible connectors are provided on both sides of the cross arm, the flexible connectors are connected through an anti-fall rod, the flexible connectors include L-shaped connectors fixed at both ends of the cross arm, the L-shaped connectors are connected through fixed steel strands, the anti-fall rod includes a connecting rod, both ends of the connecting rod are fixedly connected with rings, and the rings are sleeved on adjacent fixed steel strands.

[0007] Furthermore, both ends of the fixed steel strand are fixed with tension clamps, wherein the tension clamp at one end is fixed to an L-shaped connector far from one end of the steel pipe rod through a U-shaped ring, and the tension clamp at the other end is fixed to an L-shaped connector close to one end of the steel pipe rod through a basket bolt. The tension clamp and the basket bolt ensure the stability of the connection at both ends of the fixed steel strand, and ensure that the steel strand always maintains appropriate tension, effectively avoiding safety hazards caused by loose connections.

[0008] Furthermore, a fall arrester is rotated on the connecting rod, and the fall arrester includes a cylinder, baffles are fixed at both ends of the cylinder, a driven wheel is fixed on the side of the baffle away from the cylinder, the cylinder and the driven wheel are coaxial, baffles are fixed at both ends of the cylinder, a safety rope is wrapped around the cylinder, a safety lock is fixed on the end of the safety rope away from the cylinder, and a driving device is fixed on the connecting rod, and the driving device rotates the cylinder through the driving wheel and the driven wheel. The rotation of the cylinder on the fall arrester is controlled by the driving device, so as to adjust the retraction and release of the safety rope, thereby enhancing the safety and controllability of construction personnel during the operation.

[0009] Furthermore, the driving device is a double-headed motor, and both ends of the double-headed motor are connected to a fall arrester. When a construction worker falls accidentally, the double-headed motor can reel in the safety rope with greater force, thereby pulling the construction worker back to the crossarm more quickly and effectively, greatly improving the safety of the operation.

[0010] Furthermore, the baffle has an arc-shaped cross section, and the baffle and the end surface of the cylinder form a bowl shape, and the edge of the baffle faces away from the cylinder. The arc-shaped baffle can effectively reduce the contact between the safety rope and the edge of the baffle during the retraction and release process, thereby reducing the wear of the safety rope.

[0011] Furthermore, the fall arrester is placed in a rainproof box, which includes a housing that cooperates with the driving device, and a rain shield that can shield the driving wheel and the driven wheel is provided on the top of the housing. The rainproof box effectively reduces the risk of damage to the equipment due to water intrusion, thereby reducing the need for repair and replacement of components, thereby reducing maintenance costs.

[0012] Furthermore, the L-shaped connector includes an angle steel connector horizontally fixed on the cross arm, and an angle steel column is vertically fixed to the end of the angle steel connector away from the cross arm. The combination of the angle steel connector and the angle steel column increases the overall strength and stability of the L-shaped connector, which can effectively resist the impact of external forces and ensure that the connection device will not be deformed or broken due to force when construction workers are working or an accident occurs.

[0013] Furthermore, the collar is a safety hook. When it is necessary to change the working position or perform other operations, the construction workers can quickly complete the disassembly and installation of the anti-fall rod through the safety hook, which reduces waiting time and improves construction efficiency.

[0014] The beneficial effects that this technical solution can produce.

[0015] The utility model can move along the fixed steel strand through the anti-fall rod, so that construction workers have enough space to move when working on the cross arm. Compared with the traditional metal guardrail, the flexible connector reduces the direct pressure on the cross arm, which helps to extend the service life of the cross arm. Through the cylinder driven by the drive device, in the emergency situation of the construction worker falling, the drive device can be quickly started through the remote switch, and autonomous rescue can be carried out in time, and effective protection measures are provided, which also reduces the pressure of other construction workers on site. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 This is an exploded view of the anti-fall rod of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the flexible connector of the utility model.

[0020] Among them: 1. cross arm, 2. L-shaped connector, 3. fixed steel strand, 4. connecting rod, 5. collar, 6. tension clamp, 7. turnbuckle, 8. driven wheel, 9. driving wheel, 10. driving device, 11. cylinder, 12. baffle, 13. rainproof box, 14. shell, 15. rain shield, 16. angle steel connector, 17. angle steel column, 18. U-shaped ring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 1As shown, an embodiment of the utility model provides a universal flexible anti-fall connection device for a steel pipe pole cross arm, comprising a cross arm 1 fixed on the steel pipe pole, flexible connectors are provided on both sides of the cross arm 1, and the flexible connectors are connected through an anti-fall rod. The flexible connector includes an L-shaped connector 2 fixed at both ends of the cross arm 1, and the L-shaped connector 2 is connected through a fixed steel strand 3. The anti-fall rod includes a connecting rod 4, and both ends of the connecting rod 4 are fixedly connected with a ring 5, and the ring 5 is sleeved on the adjacent fixed steel strand 3.

[0023] When the construction workers need to perform maintenance work on the cross arm 1, they can clip the safety buckle on their safety clothes to the connecting rod 4, and surround the construction workers by fixing the steel strand 3 and the connecting rod 4, thereby realizing the anti-falling function. When the construction workers need to move, they can move the connecting rod 4 to make the rings 5 ​​slide along the fixed steel strand 3. The mobility of the connecting rod 4 can ensure the construction workers' working space on the cross arm 1. When the construction workers accidentally fall from one side of the cross arm 1, the construction workers can use the safety buckle as a support under the action of gravity. The collar 5 at one end near the construction personnel applies a large pulling force, and the collar 5 moves under the action of the pulling force, while the other end of the anti-fall rod is subjected to a smaller pulling force due to the extension of the lever arm. The pulling forces on both sides of the connecting rod 4 are different, and the connecting rod 4 will tilt and be self-locked by the resistance of the fixed steel strand 3. When the anti-fall rod is subjected to a downward force, it will pull the flexible fixed steel strand 3 and form the lowest point on the fixed steel strand 3 to prevent the connecting rod 4 from shaking. At this time, the construction personnel can climb onto the cross arm 1 along the safety buckle or wait for rescue. Due to the simple structure and light weight of the flexible anti-fall device, it can reduce the direct pressure on the steel pipe cross arm 1 when the construction personnel are working, which helps to extend the service life of the cross arm 1 and reduce maintenance costs. The pulling force when the construction personnel fall causes the fixed steel strand to form the lowest point, which can prevent the connecting rod from shaking, thereby ensuring the stability of the construction personnel, which provides better rescue conditions for rescue personnel and reduces the difficulty and time of rescue.

[0024] like Figure 2As shown, both ends of the fixed steel strand 3 are fixed with tension clamps 6, wherein the tension clamp 6 at one end is fixed to the L-shaped connector 2 away from one end of the steel pipe rod through a U-shaped ring 18, and the tension clamp 6 at the other end is fixed to the L-shaped connector 2 close to one end of the steel pipe rod through a basket bolt 7. The tension clamp 6, the U-shaped ring 18 and the basket bolt 7 are all prior art. The basket bolt 7 is preferably arranged at one end close to the steel pipe rod. In order to ensure that the fixed steel strand 3 always has a certain tension, the construction personnel can check the basket bolt 7 and the fixed steel strand 3 before entering the cross arm 1 to prevent the fixed steel strand 3 from falling off and causing safety hazards, thereby ensuring the stability of the fixed steel strand 3 and the effectiveness of the anti-fall function. The tensioned fixed steel strand 3 can respond quickly to the actions of the construction personnel and provide necessary support. The fixed steel strand 3 can be kept horizontal with the steel pipe rod, which helps the construction personnel to move more smoothly on the cross arm 1 and reduces the safety hazards caused by tilt or instability.

[0025] like Figure 3 As shown, a fall arrester is rotatably arranged on the connecting rod 4, which includes a cylinder 11. Baffles 12 are fixed at both ends of the cylinder 11. A driven wheel 8 is fixed on the side of the baffle 12 away from the cylinder 11. The cylinder 11 and the driven wheel 8 are coaxial. Baffles 12 are fixed at both ends of the cylinder 11. A safety rope is wrapped around the cylinder 11. A safety lock is fixed on the end of the safety rope away from the cylinder 11. A driving device 10 is fixed on the connecting rod 4. The driving device 10 rotates the cylinder 11 through the driving wheel 9 and the driven wheel 8. The construction personnel are fixed to the safety clothing by the safety lock, and the driving device 10 can be controlled by a remote switch. When the construction personnel fall, the driving device 10 can be started by the remote switch carried with them. The driving device 10 pulls the construction personnel back to the cross arm 1 by reeling in the safety rope. Infrared beam switches can be set inside the baffles 12 at both ends of the cylinder 11. When the safety rope on the cylinder 11 is completely released, there is no obstacle between the infrared beam switches. At this time, the infrared beam switches start the driving device 10 and pull the construction personnel back to the cross arm 1. The driving device 10 can be a stepping motor, a servo motor or a self-locking motor, etc. The safety lock, safety clothing, safety rope, remote switch, infrared beam switch and driving device 10 are all prior art. A plurality of blocks can be set on the connecting rod 4 to limit the movement of the driver along the axis of the connecting rod 4.

[0026] In the event of an emergency where a construction worker falls, the construction worker can quickly start the drive device 10 by remote switching and rescue the worker in time. The infrared beam switch is used to monitor the status of the safety rope. When the safety rope is fully released and there is no obstruction between the infrared beam switches, the drive device 10 will be started to automatically pull the construction worker back to the crossarm 1. This automated operation not only reduces the possibility of human operating errors, but also provides protection when the construction worker loses consciousness or is unable to operate, thereby improving safety. A safety buckle is fixed to one end of the safety rope away from the cylinder 11, and the construction worker can conveniently fix the safety clothing with the safety buckle. The design of the cylinder 11 and the baffle 12 in the fall arrester provides stable support and protection for the safety rope, avoiding damage to the safety rope due to friction, stretching, etc. during use.

[0027] The driving device 10 is a double-headed motor, and both ends of the double-headed motor are connected to a fall arrester. The design of the double-headed motor makes the fall arrester more stable during operation, avoiding the imbalance and stability problems that may occur due to a single-headed motor. The double-headed motor is fixed with a fall arrester at both ends, which can ensure that the forces on both sides are balanced, reducing equipment damage or safety hazards caused by uneven forces.

[0028] The baffle 12 has an arc-shaped cross section, and the baffle 12 and the end surface of the cylinder 11 form a bowl shape, with the edge of the baffle 12 facing away from the cylinder 11. The arc-shaped baffle 12 can reduce the scratches and wear on the safety rope, extend the service life of the safety rope, maintain its strength and safety, and reduce the cost and inconvenience caused by frequent replacement of the safety rope. The arc-shaped baffle 12 is combined with the end surface of the cylinder 11 to form a bowl shape, which can provide better support and enhance the structural stability of the entire fall arrester. The arc-shaped baffle 12 makes the safety rope smoother when winding, reduces the possibility of knotting or entanglement of the safety rope, and ensures fast and smooth retraction and release.

[0029] The fall arrester is placed in a rainproof box 13, which includes a housing 14 that cooperates with the drive device 10, and a rain shield 15 that can shield the drive wheel 9 and the driven wheel 8 is provided at the top of the housing 14. The rainproof box 13 can effectively prevent rainwater and other liquids from entering the interior of the fall arrester, and protect sensitive components such as the drive device 10, the drive wheel 9 and the driven wheel 8 from water damage. By preventing water from intruding, damage to the equipment caused by rust, corrosion and the like is reduced, thereby significantly extending the service life of the fall arrester and its internal components.

[0030] The L-shaped connector 2 includes an angle steel connector 16 horizontally fixed on the cross arm 1, and an angle steel column 17 is vertically fixed to the end of the angle steel connector 16 away from the cross arm 1. The angle steel connector 16 and the angle steel column 17 can be adjusted and installed according to actual needs, which helps to adapt to cross arms 1 of different sizes and shapes, and improve the versatility and practicality of the device. If the L-shaped connector 2 is damaged or worn during use, it can be easily replaced or repaired. The L-shaped connector 2 with a stable structure can more reliably withstand the impact force of an accidental fall, thereby improving the safety of construction workers.

[0031] The collar 5 is a safety hook. The safety hook is a prior art. After the operation is completed, the anti-fall rod can be removed and recovered in time through the safety hook, which is helpful for the organization and management of the site, and prevents the remaining equipment from causing safety hazards or affecting the order of the site. In addition, the construction personnel can take the connecting rod 4 back to the maintenance point for detailed inspection, cleaning and necessary maintenance, reducing the safety hazards caused by equipment failure. The safety hook provides a reliable connection method to ensure that the anti-fall rod will not fall off accidentally during the replacement process, thereby ensuring the safety of the construction personnel.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A universal flexible anti-fall connection device for a steel pipe pole cross arm, comprising a cross arm (1) fixed on the steel pipe pole, characterized in that: Flexible connectors are provided on both sides of the cross arm (1), and the flexible connectors are connected via an anti-fall rod. The flexible connectors include L-shaped connectors (2) fixed at both ends of the cross arm (1), and the L-shaped connectors (2) are connected via a fixed steel strand (3). The anti-fall rod includes a connecting rod (4), and both ends of the connecting rod (4) are fixedly connected with a sleeve (5), and the sleeve (5) is sleeved on an adjacent fixed steel strand (3).

2. A universal flexible anti-fall connection device for a steel pipe cross arm according to claim 1, characterized in that: Both ends of the fixed steel strand (3) are fixed with tension clamps (6), wherein the tension clamp (6) at one end is fixed to an L-shaped connector (2) away from one end of the steel pipe rod through a U-shaped ring (18), and the tension clamp (6) at the other end is fixed to an L-shaped connector (2) close to one end of the steel pipe rod through a basket bolt (7).

3. A universal flexible anti-fall connection device for a steel pipe cross arm according to claim 1, characterized in that: A fall arrester is rotatably mounted on the connecting rod (4), and the fall arrester comprises a cylinder (11). Baffles (12) are fixed at both ends of the cylinder (11), a driven wheel (8) is fixed on the side of the baffle (12) away from the cylinder (11), the cylinder (11) and the driven wheel (8) are coaxial, a safety rope is wound around the cylinder (11), and a safety lock is fixed on the end of the safety rope away from the cylinder (11), and a driving device (10) is fixed on the connecting rod (4), and the driving device (10) causes the cylinder (11) to rotate through a driving wheel (9) and a driven wheel (8).

4. A universal flexible anti-fall connection device for a steel pipe cross arm according to claim 3, characterized in that: The baffle (12) has an arc-shaped cross section, and the baffle (12) and the end surface of the cylinder (11) form a bowl shape, and the edge of the baffle (12) faces in a direction away from the cylinder (11).

5. A universal flexible anti-fall connection device for a steel pipe cross arm according to claim 3, characterized in that: The fall arrester is placed in a rainproof box (13), which comprises a shell (14) matched with the driving device (10), and a rain shield (15) capable of shielding the driving wheel (9) and the driven wheel (8) is provided at the top of the shell (14).

6. A universal flexible anti-fall connection device for a steel pipe cross arm according to claim 3, characterized in that: The driving device (10) is a double-headed motor, and both ends of the double-headed motor are connected to a fall arrester.

7. A universal flexible anti-fall connection device for a steel pipe cross arm according to claim 1, characterized in that: The L-shaped connector (2) comprises an angle steel connector (16) horizontally fixed on the cross arm (1), and an angle steel column (17) is vertically fixed to one end of the angle steel connector (16) away from the cross arm (1).

8. The universal flexible anti-fall connection device for steel pipe cross arm according to claim 1, characterized in that: The collar (5) is a safety hook.

Images