A power tower protection platform positioning and welding device

Abstract

The present application belongs to the field of installation construction equipment of electric power tower, and particularly relates to a positioning and welding device for a protective platform of an electric power tower, comprising a welding machine connected with a welding gun, and a positioning device added, wherein the welding machine is arranged on a horizontal rail of a guardrail of the protective platform by means of the positioning device, the positioning device comprises a positioning frame in C-shaped structure and a hooking roller shaft arranged on the positioning frame, the positioning frame is hung on the horizontal rail of the guardrail by means of the hooking roller shaft, and the welding machine is hingedly arranged at the lower end of the positioning frame by means of a floating mechanism. The positioning device is added, so that the welding machine can be hung on the horizontal rail of the guardrail, and is moved on the horizontal rail of the guardrail by means of the hooking roller shaft during use, thereby avoiding occupying the ground space of the protective platform, helping to relieve the problem of narrow working space of the protective platform, and improving the safety during work.

Description

Technical Field

[0001] This invention belongs to the field of installation and construction equipment for power transmission towers, and specifically relates to a positioning and welding device for a power transmission tower protection platform. Background Technology

[0002] In the construction and maintenance of power transmission lines, the installation, inspection, and reinforcement of power transmission towers are crucial aspects. To ensure that workers have a stable operating platform at high altitudes, temporary or permanent protective platforms are usually erected at specific locations on the towers. Welding operations are then performed on these platforms to attach tower reinforcement components and connect node plates.

[0003] The protective platform consists of a platform and a guardrail surrounding its edge. The guardrail includes horizontal bars and vertical posts, with the posts spaced apart. To ensure safe power transmission, the guardrail height is not too high; therefore, the posts are typically bent inwards, pushing the horizontal bars towards the inside of the platform to prevent workers from approaching its edge. However, this also results in a narrow working space. Workers usually place the welding machine directly on the platform and drag it manually when changing welding positions. Due to the limited working space and the weight of the welding machine, workers are prone to tripping or the equipment falling during movement, posing a serious safety hazard. Summary of the Invention

[0004] To address the problems existing in the prior art, the present invention provides a positioning and welding device for a power tower protection platform, which enables convenient movement and positioning of the welding host, facilitating welding operations.

[0005] The specific technical solution adopted in this invention is as follows:

[0006] A positioning welding device for a power tower protection platform includes a welding machine connected to a welding gun and an additional positioning device. The welding machine is positioned on the guardrail crossbar of the protection platform by means of the positioning device. The positioning device includes a C-shaped positioning frame and a hook roller shaft set on the positioning frame. The positioning frame is suspended on the guardrail crossbar by means of the hook roller shaft. The welding machine is hinged to the lower end of the positioning frame by means of a floating mechanism.

[0007] The floating mechanism includes a rectangular frame-shaped floating frame, which is hinged to a positioning frame. An elastic pad is provided between the floating frame and the positioning frame. The floating frame has the freedom to swing relative to the positioning frame with the help of the elastic pad. The welding machine is hoisted and positioned on the lower side of the floating frame.

[0008] The floating mechanism also includes a damping rod, which is hinged between the floating frame and the positioning frame.

[0009] The positioning frame is arranged symmetrically in two sets, and the two sets of positioning frames are fixed together as a whole by means of an upper connecting rod and a lower connecting rod. One end of the damping rod is hinged to the upper connecting rod.

[0010] The lower connecting rod is also equipped with a positioning mechanism, which includes a Y-shaped positioning fork and an anti-detachment component on the positioning fork. The positioning fork is oscillatingly connected to the lower connecting rod by means of a positioning swing rod. The positioning fork allows the guardrail post to swing into the Y-shaped opening of the positioning fork. The anti-detachment component includes two sets of limiting posts on the fork rod. A clamping shaft and a limiting shaft are provided between the limiting posts. The clamping shaft is equipped with anti-detachment teeth. The clamping shaft is hinged to the limiting posts. The anti-detachment teeth are arranged around the guardrail post. The positioning fork forms a limiting engagement with the guardrail post by means of the anti-detachment teeth.

[0011] The anti-detachment component also includes a reset torsion spring, which is located between the clamping shaft and the limiting shaft. The clamping shaft forms a torsional fit with the limiting shaft through the reset torsion spring. The anti-detachment teeth on the clamping shaft block the front and rear sides of the guardrail post in the natural state of the reset torsion spring.

[0012] The clamping shaft of the anti-detachment component has an elongated oval cross section, and the clamping shaft abuts against the guardrail post by means of a reset torsion spring.

[0013] Two sets of clamping shafts are arranged in parallel on the limiting column, and a synchronous pull rod connects the two sets of clamping shafts.

[0014] The beneficial effects of this invention are:

[0015] This invention adds a positioning device, allowing the welding machine to be suspended on the guardrail crossbar. During use, it moves on the guardrail crossbar by hooking rollers, avoiding occupying the ground space of the protective platform. This helps alleviate the problem of narrow working space on the protective platform and improves the safety of operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention;

[0017] Figure 2 for Figure 1 A diagram showing the view from the right.

[0018] Figure 3 This is a schematic diagram showing the interaction between the positioning mechanism and the guardrail post.

[0019] Figure 4 A schematic diagram showing the position of the reset torsion spring between the clamping shaft and the limiting shaft;

[0020] In the attached diagram, 101 is the guardrail crossbar, 102 is the guardrail post, 1 is the welding machine, 2 is the positioning frame, 3 is the hook roller, 4 is the floating frame, 5 is the elastic pad, 6 is the damping rod, 7 is the upper connecting rod, 8 is the lower connecting rod, 9 is the positioning fork, 10 is the positioning swing rod, 11 is the synchronous pull rod, 12 is the limit post, 13 is the clamping shaft, 14 is the limit shaft, 15 is the anti-disengagement tooth, and 16 is the reset torsion spring. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0022] Specific implementation examples Figure 1 and Figure 2 As shown, the present invention is a positioning welding device for a power tower protection platform, including a welding machine 1 connected to a welding gun, and an additional positioning device. The welding machine 1 is mounted on the guardrail crossbar 101 of the protection platform by means of the positioning device. The positioning device includes a positioning frame 2 with a C-shaped structure and a hook roller 3 mounted on the positioning frame 2. The positioning frame 2 is suspended on the guardrail crossbar 101 by means of the hook roller 3. The welding machine 1 is hinged to the lower end of the positioning frame 2 by means of a floating mechanism.

[0023] In use, the welding machine 1 is fixed to the positioning device. The positioning device and the welding machine 1 are suspended on the guardrail crossbar 101 by means of the hook roller shaft 3. Since the positioning frame 2 has a C-shaped structure, after suspension, the welding machine 1 is located below the guardrail crossbar 101 and avoids the guardrail post 102. When it is necessary to move the position of the welding machine 1, the movement is achieved by the rolling cooperation between the hook roller shaft 3 and the guardrail crossbar 101, so that the welding machine 1 moves along the guardrail crossbar 101. This saves the ground space of the protective platform and avoids the safety hazards of directly transporting the welding machine 1.

[0024] Furthermore, such as Figure 1 As shown, the floating mechanism includes a floating frame 4 in the shape of a rectangular frame. The floating frame 4 is hinged to the positioning frame 2. An elastic pad 5 is provided between the floating frame 4 and the positioning frame 2. The floating frame 4 has the freedom to swing relative to the positioning frame 2 with the help of the elastic pad 5. The welding machine 1 is hoisted and installed on the lower side of the floating frame 4.

[0025] The welding torch is connected to the welding machine 1 via a connecting line. When the operator climbs up to perform welding operations, the welding machine 1 and the floating frame 4 can swing relative to the positioning frame 2 under the pulling action of the connecting line, so that the interface of the welding machine 1 is roughly facing the pulling direction, thereby avoiding damage caused by excessive lateral pulling force on the interface of the welding machine 1.

[0026] The elastic pad 5 is an inflatable airbag or a helical spring, which provides a restoring force for the floating frame 4, so that the interface of the welding machine 1 is roughly oriented horizontally in its natural state, which facilitates the connection of the welding gun.

[0027] Furthermore, such as Figure 1 and Figure 2 As shown, the floating mechanism also includes a damping rod 6, which is hinged between the floating frame 4 and the positioning frame 2.

[0028] The damping rod 6 pulls the floating frame 4, reducing the frequency and amplitude of the reciprocating swing of the floating frame 4, and protecting the connection line and the interface of the welding machine 1.

[0029] Furthermore, such as Figure 2 As shown, two sets of positioning frames 2 are symmetrically arranged on the left and right sides. The two sets of positioning frames 2 are fixed together as a whole by means of the upper connecting rod 7 and the lower connecting rod 8. One end of the damping rod 6 is hinged to the upper connecting rod 7.

[0030] Each of the hook roller shafts 3 is provided at the upper end of the positioning frame 2. The two hook roller shafts 3 provided on the two sets of positioning frames 2 form a stable hook engagement with the guardrail crossbar 101, so as to prevent the positioning frame 2 from swaying left and right when moving.

[0031] Furthermore, such as Figure 3 and Figure 4 As shown, a positioning mechanism is also provided on the lower connecting rod 8. The positioning mechanism includes a Y-shaped positioning fork 9 and an anti-detachment component provided on the positioning fork 9. The positioning fork 9 is oscillatingly connected to the lower connecting rod 8 by means of a positioning swing rod 10. The positioning fork 9 oscillates by means of the positioning swing rod 10, so that the guardrail post 102 enters the Y-shaped opening of the positioning fork 9. The anti-detachment component includes two sets of limiting posts 12 provided on the fork of the positioning fork 9. A clamping shaft 13 and a limiting shaft 14 are provided between the limiting posts 12. An anti-detachment tooth 15 is provided on the clamping shaft 13. The clamping shaft 13 is hinged to the limiting post 12. The anti-detachment tooth 15 is arranged around the guardrail post 102. The positioning fork 9 forms a limiting engagement with the vertical section of the guardrail post 102 by means of the anti-detachment tooth 15.

[0032] like Figure 3 As shown, two anti-detachment teeth 15 are provided on each of the front and rear sides of the guardrail post 102. The four anti-detachment teeth 15 form an enclosing structure around the guardrail post 102. When the anti-detachment teeth 15 are tilted, the guardrail post 102 is wrapped in the cavity formed by the anti-detachment teeth 15 and the clamping shaft 13.

[0033] In this embodiment, the hook roller 3 has a grooved wheel structure and forms a groove-like fit with the guardrail crossbar 101. When the positioning frame 2 needs to be fixed in position, the positioning swing rod 10 is manually swung out from the positioning frame 2. Figure 1As shown, at this time, the positioning lever 10 swings clockwise, and the guardrail post 102 is fitted into the opening of the positioning fork 9. Then, the anti-disengagement tooth 15 tilts under the action of the reset torsion spring 16 and blocks the front and rear sides of the limiting post 12, so that the limiting post 12 is fixed with the positioning fork 9 and the positioning lever 10, thereby fixing the positioning frame 2 with the guardrail, which is convenient for the welding machine 1 to use.

[0034] Furthermore, such as Figure 4 As shown, the anti-detachment component also includes a reset torsion spring 16, which is located between the clamping shaft 13 and the limiting shaft 14. The clamping shaft 13 forms a torsional fit with the limiting shaft 14 through the reset torsion spring 16. The anti-detachment teeth 15 on the clamping shaft 13 block the front and rear sides of the guardrail post 102 in the natural state of the reset torsion spring 16.

[0035] Under the action of the reset torsion spring 16, the clamping shafts 13 on both sides and the anti-detachment teeth 15 form an inwardly inclined V-shaped structure. When the guardrail post 102 is fitted, the bottom opening of the positioning fork 9 will directly fit into the guardrail post 102. When the anti-detachment teeth 15 contact the guardrail post 102, due to the V-shaped inclined structure of the anti-detachment teeth 15, the anti-detachment teeth 15 are pushed open by the guardrail post 102. When the anti-detachment teeth 15 disengage from the guardrail post 102, that is, after the guardrail post 102 enters the cavity formed by the anti-detachment teeth 15 and the clamping shafts 13, the anti-detachment teeth 15 reset into a V-shaped structure and form a positioning fit with the guardrail post 102. When it is necessary to release the positioning, manually pry open the clamping shafts 13 in the clamping state, and then reset the positioning swing rod 10.

[0036] Furthermore, the clamping shaft 13 of the anti-detachment component has an elongated oval cross-section, and the clamping shaft 13 abuts against the guardrail post 102 via a reset torsion spring 16. The abutting engagement between the clamping shaft 13 and the guardrail post 102 improves positioning stability and prevents shaking.

[0037] Furthermore, such as Figure 4 As shown, two sets of clamping shafts 13 are arranged parallel to each other on the limiting column 12, and a synchronous tie rod 11 connects the two sets of clamping shafts 13. With the help of the synchronous tie rod 11, the two sets of clamping shafts 13 with elongated oval cross sections form a quadrilateral structure with the column. When the clamping shaft 13 with anti-disengagement teeth 15 rotates, it can drive the lower clamping shaft 13 to rotate synchronously, further improving the clamping stability with the guardrail column 102.

Claims

1. A positioning and welding device for a power transmission tower protection platform, comprising a welding machine (1) connected to a welding torch, characterized in that: A positioning device is added. The welding machine (1) is set on the guardrail crossbar (101) of the protective platform by means of the positioning device. The positioning device includes a positioning frame (2) with a C-shaped structure and a hook roller (3) set on the positioning frame (2). The positioning frame (2) is suspended on the guardrail crossbar (101) by means of the hook roller (3). The welding machine (1) is hinged at the lower end of the positioning frame (2) by means of a floating mechanism.

2. The positioning and welding device for a power tower protection platform according to claim 1, characterized in that: The floating mechanism includes a floating frame (4) in the shape of a rectangular frame. The floating frame (4) is hinged to the positioning frame (2). An elastic pad (5) is provided between the floating frame (4) and the positioning frame (2). The floating frame (4) has a degree of freedom to swing relative to the positioning frame (2) with the help of the elastic pad (5). The welding machine (1) is hoisted and set on the lower side of the floating frame (4).

3. The positioning and welding device for a power tower protection platform according to claim 2, characterized in that: The floating mechanism also includes a damping rod (6), which is hinged between the floating frame (4) and the positioning frame (2).

4. The positioning and welding device for a power tower protection platform according to claim 3, characterized in that: The positioning frame (2) is symmetrically arranged in two sets. The two sets of positioning frames (2) are fixed together as a whole by means of the upper connecting rod (7) and the lower connecting rod (8). One end of the damping rod (6) is hinged to the upper connecting rod (7).

5. The positioning and welding device for a power tower protection platform according to claim 4, characterized in that: The lower connecting rod (8) is also provided with a positioning mechanism. The positioning mechanism includes a Y-shaped positioning fork (9) and an anti-detachment component on the positioning fork (9). The positioning fork (9) is connected to the lower connecting rod (8) by means of a positioning swing rod (10). The positioning fork (9) allows the guardrail post (102) to swing into the Y-shaped opening of the positioning fork (9) by means of the positioning swing rod (10). The anti-detachment component includes two sets of limiting posts (12) on the fork of the positioning fork (9). A clamping shaft (13) and a limiting shaft (14) are provided between the limiting posts (12). An anti-detachment tooth (15) is provided on the clamping shaft (13). The clamping shaft (13) is hinged to the limiting post (12). The anti-detachment tooth (15) is arranged around the guardrail post (102). The positioning fork (9) forms a limiting fit with the guardrail post (102) by means of the anti-detachment tooth (15).

6. The positioning and welding device for a power tower protection platform according to claim 5, characterized in that: The anti-detachment component also includes a reset torsion spring (16), which is located between the clamping shaft (13) and the limiting shaft (14). The clamping shaft (13) forms a torsional fit with the limiting shaft (14) by means of the reset torsion spring (16). The anti-detachment teeth (15) on the clamping shaft (13) block the front and rear sides of the guardrail post (11) in the natural state of the reset torsion spring (16).

7. The positioning and welding device for a power tower protection platform according to claim 6, characterized in that: The clamping shaft (13) of the anti-detachment component has an elongated oval cross section, and the clamping shaft (13) abuts against the guardrail post (102) by means of a reset torsion spring (16).

8. The positioning and welding device for a power tower protection platform according to claim 7, characterized in that: Two sets of clamping shafts (13) are arranged in parallel on the limiting column (12), and a synchronous pull rod (11) is connected between the two sets of clamping shafts (13).

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