Anti-falling safety iron accessory cross arm

Abstract

The utility model relates to the technical field of iron accessory cross arms, in particular to an anti-falling safety iron accessory cross arm which comprises a cross arm body and a connecting piece used for fixing the positions of the cross arm body and an electric pole, two butt joint holes which are arranged in a bilateral symmetry mode are formed in the rear side of the cross arm body, rubber pipes are arranged in the two butt joint holes, and the connecting piece comprises a semicircular abutting plate. A second rubber pad is arranged on the concave face of the semicircular abutting plate, a positioning groove plate is arranged on the convex face of the semicircular abutting plate, a U-shaped pressing rod is welded in the positioning groove plate, threaded rods are arranged at the two ends of the U-shaped pressing rod and penetrate through the two rubber pipes correspondingly, and the outer walls of the two threaded rods are in threaded connection with internal thread pressing pipes correspondingly. According to the anti-falling safety iron accessory cross arm, the rubber pipe is used for isolating the threaded rod from being in direct contact with the external environment, the annular rubber pad is matched for sealing the joint of the internal thread pressing pipe, the corrosion problem caused by exposure of traditional bolts and nuts is thoroughly solved, and the service life of the device is prolonged.

Description

Fall protection safety iron accessory crossarm Technical Field

[0001] This utility model relates to the field of iron accessory crossarm technology, specifically to a fall-prevention safety iron accessory crossarm. Background Technology

[0002] Crossarms are crucial structural components in power transmission lines, used to support cables and other equipment. They are typically installed on utility poles, serving to connect, secure, and support the poles. Utility poles are generally cylindrical with a curved outer surface. During installation, the crossarm makes point contact with the pole's outer wall. This contact method results in a small contact area and relatively insufficient fixation. This design allows the crossarm to loosen on the pole, especially under strong winds or vibrations, posing a safety hazard.

[0003] Patent CN215760828U discloses a crossarm accessory for power transmission line installation, including a crossarm and a U-shaped clamp. The U-shaped clamp is fitted onto the pole to fix the crossarm to the pole. It also includes a pad with round holes at both ends, through which the pad is fitted onto the U-shaped clamp. A flexible anti-slip pad is fixed to the end face of the pad facing the concave part of the U-shaped clamp. At least two bolts are threaded onto the pad to press the flexible anti-slip pad tightly onto the pole. This utility model's crossarm accessory increases the overall contact area with the pole by pressing the flexible anti-slip pad to the pole with bolts, increasing friction, improving the fixing effect, and enhancing the stability of the entire device. It can adapt to poles of various diameters and has strong practicality.

[0004] The aforementioned existing technology uses bolts to press the flexible anti-slip pads to the pole at both ends, increasing the overall contact area with the pole and thus improving the stability of the iron accessory crossarm. However, the design of the existing technology still has shortcomings. The bolts and nuts used for locking are completely exposed to the external environment, and long-term exposure to wind, rain, and other harsh weather conditions makes them prone to corrosion and damage. This corrosion not only leads to a decrease in fixing performance but also increases the risk of the iron accessory crossarm falling off the pole, thereby affecting safety. Therefore, although the existing structure has made some progress in improving the fixing effect, consideration for safety is still insufficient. In view of this, we propose a fall-proof safety iron accessory crossarm, aiming to improve its stability and safety in various environments through improved design. Summary of the Invention

[0005] The purpose of this utility model is to provide a fall-prevention safety iron accessory crossarm to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A fall-prevention safety iron accessory crossarm includes a crossarm, which serves as the core support structure for carrying cables and equipment. Its L-shaped design facilitates installation. It also includes a connector for fixing the crossarm and pole positions. The connector uses a multi-component locking mechanism to stably fix the crossarm and pole. As shown in Figures 1, 3, and 5, the crossarm has two symmetrically arranged mating holes on its rear side. These holes are for the threaded rod of the connector to pass through. Rubber tubes are installed inside the holes to provide sealing and cushioning. Both mating holes contain rubber tubes that isolate the threaded rod from the metal holes and prevent rainwater from contacting the threaded rod along the U-shaped clamping rod, thus preventing corrosion and absorbing vibration.

[0008] The connector includes a semi-circular abutment plate, which increases the friction area with the pole via a second rubber pad. The concave surface of the semi-circular abutment plate is provided with the second rubber pad to enhance friction. The convex surface of the semi-circular abutment plate is provided with a positioning groove plate, which fixes the position of the U-shaped clamping rod to improve assembly accuracy. The U-shaped clamping rod is welded inside the positioning groove plate. The U-shaped clamping rod applies axial locking force through threaded rods at both ends. Both ends of the U-shaped clamping rod are provided with threaded rods, which cooperate with internal threaded clamping tubes to achieve adjustable clamping. The two threaded rods pass through two rubber tubes respectively, and the outer walls of the two threaded rods are threaded with internal threaded clamping tubes. The internal threaded clamping tubes are operated by a knob to clamp the annular rubber pad to seal the connection.

[0009] Preferably, as shown in Figure 1, the crossarm has an "L" shaped structure, and the top of the crossarm has multiple mounting holes for fixing cables or other equipment.

[0010] Preferably, as shown in Figure 3, an arc-shaped abutment plate is welded to the middle of the rear side of the crossarm. The arc-shaped abutment plate contacts the pole through its concave surface to increase the force-bearing area. The concave surface of the arc-shaped abutment plate is provided with a first rubber pad. The concave surfaces of the first rubber pad and the second rubber pad abut against the outer wall of the pole to improve stability.

[0011] The convex surface of the arc-shaped abutment is provided with two support plates arranged symmetrically on the left and right. The side of the support plate away from the arc-shaped abutment is welded to the rear side of the crossbeam. The support plates enhance the rigid connection between the crossbeam and the arc-shaped abutment to resist deformation by external forces.

[0012] Preferably, as shown in Figure 5, the inner wall of the rubber tube is tightly fitted to the outer wall of the U-shaped clamping rod, and an annular rubber pad is integrally formed at the front end of the rubber tube. The annular rubber pad seals the gap between the internal thread clamping tube and the threaded rod, preventing moisture from entering. The rear end of the internal thread clamping tube is tightly fitted to the front side of the annular rubber pad, and a knob is provided at the front end of the internal thread clamping tube. The knob is convenient for manual operation to lock or loosen.

[0013] The crossarm has a safety device at the front center of the vertical plate to prevent the internal threaded clamping tube from rotating. The safety device presses against the outer wall of the internal threaded clamping tube with a clamping rod to prevent it from loosening. The safety device includes a fixed protrusion plate welded to the front of the crossarm vertical plate. The fixed protrusion plate provides a mounting base for the lead screw and the clamping rod. Lead screws are provided on both the left and right sides of the fixed protrusion plate. The lead screws adjust the position of the clamping rods by threads to apply lateral pressure. The outer walls of the two lead screws are threaded with clamping rods. The opposite ends of the two clamping rods abut against the outer walls of the two internal threaded clamping tubes respectively. The ends of the clamping rods directly press against the outer walls of the internal threaded clamping tubes to restrict their rotation.

[0014] The fixed convex plate is provided with sleeves on both the left and right sides. The sleeves wrap around the lead screws and provide guidance. The two lead screws are located in the two sleeves respectively. A rubber ring is provided on the inner wall of the sleeve at the port. The outer wall of the clamping rod is tightly fitted with the inner wall of the rubber ring. The rubber ring seals the gap between the sleeve and the clamping rod to prevent corrosive media from entering.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This fall-prevention safety iron accessory crossarm, through the combination design of arc-shaped and semi-circular abutment plates, increases the contact area with the pole. Combined with the friction buffering effect of the first and second rubber pads, it effectively prevents the crossarm from sliding or loosening on the pole surface.

[0017] 2. This fall-prevention safety iron accessory crossarm uses a rubber tube to isolate the threaded rod from direct contact with the external environment, and works in conjunction with an annular rubber pad to seal the connection of the internal threaded clamping tube, completely solving the corrosion problem caused by the exposure of traditional bolts and nuts, and extending the service life of the device.

[0018] 3. This fall-prevention safety iron accessory crossarm is designed to prevent the connection from loosening due to vibration or external force by using the clamping rod of the safety component to press the internal threaded clamping tube laterally, thus ensuring that the crossarm is stably fixed to the pole for a long time. Attached Figure Description

[0019] Figure 1 is a schematic diagram of the overall first-view structure of this utility model;

[0020] Figure 2 is a schematic diagram of the overall second-view structure of this utility model;

[0021] Figure 3 is a schematic diagram of the assembly structure of the crossbeam, connector and internal threaded clamping tube in this utility model;

[0022] Figure 4 is a schematic diagram of the connector structure in this utility model;

[0023] Figure 5 is a schematic diagram of the assembly structure of the crossbeam and safety component in this utility model;

[0024] In the diagram: 100, crossbeam; 110, mating hole; 120, mounting hole; 130, arc-shaped abutment plate; 140, first rubber pad; 150, support plate; 160, rubber tube; 161, annular rubber pad; 200, connector; 210, semi-circular abutment plate; 220, U-shaped clamping rod; 221, threaded rod; 230, second rubber pad; 240, positioning groove plate; 300, internally threaded clamping tube; 400, safety device; 410, fixing protrusion plate; 420, lead screw; 430, abutment rod; 440, sleeve. Detailed Implementation

[0025] 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.

[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Please refer to Figures 1-5. This utility model provides a technical solution:

[0028] A fall-prevention safety iron accessory crossarm includes a crossarm 100, which serves as the core support structure for carrying cables and equipment. Its L-shaped design facilitates installation. It also includes a connector 200 for fixing the crossarm 100 to the pole. The connector 200 uses a multi-component locking mechanism to stably fix the crossarm 100 to the pole. As shown in Figures 1, 3, and 5, the rear side of the crossarm 100 has two symmetrically arranged mating holes 110. The mating holes 110 are for threaded rods 221 of the connector 200 to pass through. A rubber tube 160 is installed inside each of the two mating holes 110 to provide sealing and cushioning. The rubber tube 160 isolates the threaded rod 221 from contact with the metal hole and prevents rainwater from contacting the threaded rod 221 along the U-shaped clamping rod 220, thus preventing corrosion and absorbing vibration.

[0029] The connector 200 includes a semi-circular abutment plate 210. The semi-circular abutment plate 210 increases the friction area with the pole through a second rubber pad 230. The concave surface of the semi-circular abutment plate 210 is provided with the second rubber pad 230 to enhance friction. The convex surface of the semi-circular abutment plate 210 is provided with a positioning groove plate 240. The positioning groove plate 240 fixes the position of the U-shaped clamping rod 220 to improve assembly accuracy. The U-shaped clamping rod 220 is welded inside the positioning groove plate 240. The U-shaped clamping rod 220 applies axial locking force through threaded rods 221 at both ends. Both ends of the U-shaped clamping rod 220 are provided with threaded rods 221. The threaded rods 221 cooperate with the internal threaded clamping tube 300 to achieve adjustable clamping. The two threaded rods 221 pass through the two rubber tubes 160 respectively, and the outer walls of the two threaded rods 221 are threadedly connected to the internal threaded clamping tube 300. The internal threaded clamping tube 300 clamps the annular rubber pad 161 to seal the connection by operating a knob.

[0030] In this embodiment, as shown in Figure 1, the crossarm 100 has an "L" shaped structure, and the top of the crossarm 100 is provided with multiple mounting holes 120 for fixing cables or other equipment.

[0031] Specifically, as shown in Figure 3, an arc-shaped abutment plate 130 is welded to the middle of the rear side of the crossarm 100. The arc-shaped abutment plate 130 contacts the pole through its concave surface to increase the force-bearing area. A first rubber pad 140 is provided on the concave surface of the arc-shaped abutment plate 130. The concave surfaces of the first rubber pad 140 and the second rubber pad 230 abut against the outer wall of the pole to improve stability.

[0032] The convex surface of the arc-shaped abutment plate 130 is provided with two support plates 150 arranged symmetrically on the left and right. The side of the support plate 150 away from the arc-shaped abutment plate 130 is welded to the rear side of the crossbeam 100. The support plate 150 enhances the rigid connection between the crossbeam 100 and the arc-shaped abutment plate 130 to resist deformation by external force.

[0033] Furthermore, as shown in Figure 5, the inner wall of the rubber tube 160 is tightly fitted to the outer wall of the U-shaped clamping rod 220. The front end of the rubber tube 160 is integrally formed with an annular rubber pad 161, which seals the gap between the internal thread clamping tube 300 and the threaded rod 221, preventing moisture from entering. The rear end of the internal thread clamping tube 300 is tightly fitted to the front side of the annular rubber pad 161. The front end of the internal thread clamping tube 300 is provided with a knob, which is convenient for manual operation to lock or loosen.

[0034] A safety element 400 is provided at the front center of the vertical plate of the crossarm 100 to prevent the internal threaded clamping tube 300 from rotating. The safety element 400 presses the outer wall of the internal threaded clamping tube 300 with a clamping rod 430 to prevent it from loosening. The safety element 400 includes a fixing protrusion 410 welded to the front of the vertical plate of the crossarm 100. The fixing protrusion 410 provides a mounting base for the lead screw 420 and the clamping rod 430. Lead screws 420 are provided on both the left and right sides of the fixing protrusion 410. The position of the clamping rod 430 is adjusted by the thread to apply lateral pressure. The outer walls of the two lead screws 420 are threaded with clamping rods 430. The opposite ends of the two clamping rods 430 abut against the outer walls of the two internal threaded clamping tubes 300 respectively. The ends of the clamping rods 430 directly press against the outer wall of the internal threaded clamping tube 300 to limit its rotation.

[0035] Both sides of the fixed convex plate 410 are provided with sleeves 440. The sleeves 440 wrap around the lead screw 420 and provide guidance. The two lead screws 420 are located in the two sleeves 440 respectively. A rubber ring is provided on the inner wall of the sleeve 440 at the port. The outer wall of the clamping rod 430 is tightly fitted with the inner wall of the rubber ring. The rubber ring seals the gap between the sleeve 440 and the clamping rod 430 to prevent corrosive media from entering.

[0036] In this embodiment, the fall-prevention safety iron accessory crossarm is used by first attaching the crossarm 100 to the surface of the pole using the L-shaped vertical plate, so that the arc-shaped abutment plate 130 on the rear side of the crossarm 100 and the first rubber pad 140 with its concave surface are tightly against the outer wall of the pole. At the same time, the second rubber pad 230 with the concave surface of the semi-circular abutment plate 210 of the connector 200 is attached to the other side of the pole. Then, the threaded rods 221 at both ends of the U-shaped clamping rod 220 of the connector 200 are passed through the rubber tubes 160 in the docking holes 110 of the crossarm 100 and screwed into the internal thread clamping tube 300. By rotating the knob at the front end of the internal thread clamping tube 300, the internal thread clamping tube 300 is pressed against the annular rubber. The rubber pad 161 clamps the U-shaped clamping rod 220 together with the semi-circular abutment plate 210 and the arc-shaped abutment plate 130 to secure the pole. The cooperation of the rubber tube 160, the annular rubber pad 161 and the internally threaded clamping tube 300 prevents the threaded rod 221 from contacting the outside, thus preventing the threaded rod 221 from rusting and ensuring the stability of the crossarm 100. Then, the clamping rod 430 of the safety component 400 is rotated and moved along the sleeve 440, so that the end of the clamping rod 430 presses against the outer wall of the internally threaded clamping tube 300. The rubber ring in the sleeve 440 seals the gap between the clamping rod 430 and the sleeve 440. Finally, the cable equipment is fixed through the mounting hole 120 at the top of the crossarm 100.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A fall-prevention safety iron accessory crossarm, comprising a crossarm (100) and a connector (200) for fixing the crossarm (100) to the position of a utility pole, characterized in that: The crossarm (100) has two symmetrically arranged docking holes (110) on its rear side. Each docking hole (110) is provided with a rubber tube (160). The connector (200) includes a semi-circular abutment plate (210). The concave surface of the semi-circular abutment plate (210) is provided with a second rubber pad (230). The convex surface of the semi-circular abutment plate (210) is provided with a positioning groove plate (240). A U-shaped clamping rod (220) is welded in the positioning groove plate (240). Both ends of the U-shaped clamping rod (220) are provided with threaded rods (221). The two threaded rods (221) pass through the two rubber tubes (160) respectively, and the outer walls of the two threaded rods (221) are threaded with internally threaded clamping tubes (300).

2. The fall-prevention safety iron accessory crossarm according to claim 1, characterized in that: The crossarm (100) has an "L" shaped structure, and the top of the crossarm (100) has multiple mounting holes (120).

3. The fall-prevention safety iron accessory crossarm according to claim 1, characterized in that: An arc-shaped abutment plate (130) is welded to the middle of the rear side of the crossarm (100). The concave surface of the arc-shaped abutment plate (130) is provided with a first rubber pad (140). The concave surfaces of the first rubber pad (140) and the second rubber pad (230) abut against the outer wall of the pole.

4. The fall-prevention safety iron accessory crossarm according to claim 3, characterized in that: The convex surface of the arc-shaped abutment plate (130) is provided with two support plates (150) arranged symmetrically on the left and right. The side of the support plate (150) away from the arc-shaped abutment plate (130) is welded to the rear side of the crossbeam (100).

5. The fall-prevention safety iron accessory crossarm according to claim 1, characterized in that: The inner wall of the rubber tube (160) is tightly fitted with the outer wall of the U-shaped clamping rod (220). The front end of the rubber tube (160) is integrally formed with an annular rubber pad (161). The rear end of the internally threaded clamping tube (300) is tightly fitted with the front side of the annular rubber pad (161). The front end of the internally threaded clamping tube (300) is provided with a knob.

6. The fall-prevention safety iron accessory crossarm according to claim 1, characterized in that: The crossarm (100) has a safety device (400) at the front center of the vertical plate to prevent the internal threaded clamping tube (300) from rotating. The safety device (400) includes a fixed protrusion (410) welded to the front of the vertical plate of the crossarm (100). The fixed protrusion (410) has screw rods (420) on both the left and right sides. The outer walls of the two screw rods (420) are threaded with abutting rods (430). The opposite ends of the two abutting rods (430) abut against the outer walls of the two internal threaded clamping tubes (300).

7. The fall-prevention safety iron accessory crossarm according to claim 6, characterized in that: The fixed protrusion plate (410) is provided with sleeves (440) on both the left and right sides. The two lead screws (420) are respectively located in the two sleeves (440). The inner wall of the sleeve (440) and the position of the port are provided with rubber rings. The outer wall of the clamping rod (430) is tightly fitted with the inner wall of the rubber ring.

Images