Overhead crane track walkway plate maintenance tool

Abstract

The utility model belongs to the technical field of overhauling tools, and particularly relates to a crown block track walkway plate overhauling tool which comprises a lengthening rod, and a sleeve clamping head used for fixing a nut is arranged at one end of the lengthening rod. The nut below the walkway plate is fixed through the sleeve clamping head at the top end of the lengthening rod, so that a worker can fix the nut below the walkway plate on the ground, and potential safety hazards are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of maintenance tools, in particular to a maintenance tool for a overhead crane track walkway plate. Background Art

[0002] Overhead crane, also known as bridge crane, is a lifting equipment that is horizontally mounted above workshops, warehouses and material yards to lift materials. The bridge of the overhead crane runs longitudinally along the tracks laid on the elevated platforms on both sides, making full use of the space under the bridge to lift materials without being hindered by ground equipment. It is the most widely used and largest type of lifting machinery.

[0003] Walkways are usually set up on both sides of the overhead crane track. The walkway is a safe passage for daily inspection and maintenance. The walkway is connected to the supporting columns of the factory and fixed with bolts. The bolts are installed with the nuts under the walkway and the bolt heads above the walkway. Due to daily vibrations or climate changes, the bolts may become loose. When tightening the bolts, it is necessary to tighten the bolts while fixing the nuts. However, the nuts are located under the walkway, and the personnel above the walkway cannot fix the nuts. Therefore, the personnel need to use a safety rope to hang under the walkway to fix the nuts, which may easily cause personnel to fall and pose a safety hazard. Utility Model Content

[0004] In order to solve the problems in the above-mentioned background technology, the utility model provides an overhead crane track walkway plate maintenance tool, which fixes the nuts under the walkway plate through the sleeve clamp at the top of the extension rod, so that personnel can fix the nuts under the walkway plate on the ground, reducing safety hazards.

[0005] The utility model provides a tool for repairing a track walkway plate of an overhead travelling vehicle, comprising an extension rod, one end of which is provided with a sleeve clamp for fixing a nut.

[0006] Furthermore, a mounting plate is provided at the top of the extension rod, a clamping joint is provided on the mounting plate, a clamping groove is provided at the bottom end of the sleeve clamp, the clamping joint is inserted into the clamping groove, and a clamping assembly for fixing the sleeve clamp is provided in the clamping joint.

[0007] Furthermore, the snap-in assembly includes a snap-in ball, a receiving groove is horizontally opened in the snap-in joint, the snap-in ball is movably arranged in the receiving groove, the snap-in ball part is located outside the snap-in joint, a first spring is arranged between the snap-in ball and the bottom of the receiving groove, a limiting groove is opened on the side wall of the snap-in groove, and the snap-in ball is clamped in the limiting groove.

[0008] Furthermore, one end of the extension rod away from the sleeve clamp is connected to a telescopic rod, the telescopic rod includes a fixed rod and a sliding rod, the sliding rod is slidably inserted into the fixed rod and one end passes through the fixed rod, the end of the sliding rod passing through the fixed rod is connected to the extension rod, and an adjustment component for adjusting the length of the telescopic rod is provided on the fixed rod.

[0009] Furthermore, the adjustment assembly includes two fixed plates arranged on the fixed rod, a rotating rod is rotatably connected between the two fixed plates, a second spring is arranged between one end of the rotating rod and the fixed rod, a limiting rod is arranged at the other end of the rotating rod, a through hole is opened in the fixed rod, and a plurality of adjustment slots are opened on the sliding rod along its length direction, the limiting rod passes through the through hole and is clamped in the adjustment slot.

[0010] Furthermore, the extension rod and the sliding rod are hinged together by a hinge, and a locking assembly is provided on the side of the extension rod away from the hinge.

[0011] Furthermore, the locking assembly includes two bearing plates arranged on the extension rod, an insertion rod is slidably inserted between the two bearing plates, the insertion rod is arranged along the length direction of the extension rod, a support plate is arranged on the insertion rod, the support plate is located between the two bearing plates, a third spring is arranged between the support plate and the upper bearing plate, a locking plate is arranged on the sliding rod, a locking hole is opened in the locking plate, the bottom end of the insertion rod is inserted into the locking hole, and a pull ring is arranged on the top of the insertion rod.

[0012] Furthermore, a mounting frame is provided at one end of the telescopic rod away from the extension rod, and a plurality of universal wheels are provided on the mounting frame.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) When tightening the bolts of the walkway board, the person on the ground uses an extension rod to put the sleeve clamp on the nut, thereby fixing the nut under the walkway board, and the person above the walkway board tightens the bolt. The two people can complete the bolt tightening work and reduce safety hazards.

[0015] (2) When the length of the extension rod is not enough, the telescopic rod below can be adjusted to extend it. The end of the rotating rod close to the second spring is pressed, and the rotating rod drives the limit rod to move outward, so that the limit rod is separated from the adjustment slot. The length of the telescopic rod can be adjusted by pulling out the sliding rod. After the adjustment is completed, the rotating rod is released, and the second spring pushes the rotating rod to rotate. The rotating rod drives the limit rod to move inward, and the limit rod is locked in the adjustment slot again, so as to fix the sliding rod and prevent the sliding rod from sliding.

[0016] (3) When the maintenance tool is not in use, the pull ring can be pulled to drive the insertion rod to move upward. When the insertion rod is out of the locking hole, the extension rod can be rotated toward the telescopic rod, thereby realizing the folding of the maintenance tool, reducing the overall length of the maintenance tool, and facilitating the storage of the maintenance tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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.

[0018] Figure 1 This is a schematic diagram of the overall structure of the overhead crane track walkway plate maintenance tool;

[0019] Figure 2 It is a structural schematic diagram of the top end of the extension rod;

[0020] Figure 3 is a cross-sectional view of the clamping assembly;

[0021] Figure 4 is a cross-sectional view of the adjustment assembly;

[0022] Figure 5 is a schematic diagram of the structure of the locking assembly;

[0023] Explanation of the accompanying drawings: 1. Extension rod; 10. Mounting rod; 11. Mounting plate; 12. Bolt; 13. Card joint; 14. Sleeve card head; 140. Card groove; 15. Card assembly; 150. Card ball; 151. Accommodating groove; 152. First spring; 153. Limiting groove; 2. Telescopic rod; 20. Fixed rod; 21. Sliding rod; 22. Adjusting assembly; 220. Fixed plate; 221. Rotating rod; 222. Second spring; 223. Limiting rod; 224. Through hole; 225. Adjusting groove; 3. Hinge; 4. Locking assembly; 40. Loading plate; 41. Insert rod; 42. Support plate; 43. Third spring; 44. Locking plate; 45. Locking hole; 46. Pull ring; 5. Mounting frame; 6. Universal wheel. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in 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 belong to the protection scope of the utility model.

[0025] The following is combined with Figure 1 To Attachment Figure 5 And specific embodiments describe the present invention in detail.

[0026] Reference Figure 1-5 The utility model provides a maintenance tool for a overhead crane track walkway plate, comprising an extension rod 1, a mounting rod 10 is fixedly connected to the top of the extension rod 1, the mounting rod 10 is arranged perpendicular to the extension rod 1, a mounting plate 11 is arranged on the mounting rod 10, the mounting plate 11 is detachably connected to the mounting rod 10 by bolts 12, a clamping joint 13 is fixedly connected to the mounting plate 11, a sleeve clamp 14 is sleeved on the clamping joint 13, a clamping groove 140 is opened at the bottom end of the sleeve clamp 14, and the clamping joint 13 is inserted into the clamping groove 140.

[0027] Two groups of clamping components 15 for fixing the sleeve clamp 14 are arranged in the clamping joint 13, and the clamping component 15 includes a clamping ball 150. A receiving groove 151 is horizontally opened in the clamping joint 13, and the clamping ball 150 is movably arranged in the receiving groove 151. The clamping ball 150 is partially located outside the clamping joint 13, and the groove opening of the receiving groove 151 is in a closed state and is smaller than the diameter of the clamping ball 150, so as to prevent the clamping ball 150 from sliding out of the receiving groove 151. A first spring 152 is arranged between the clamping ball 150 and the groove bottom of the receiving groove 151, and the first spring 152 has a tendency to drive the clamping ball 150 to move away from the receiving groove 151; a limiting groove 153 is opened on the groove side wall of the clamping groove 140, and the clamping ball 150 is clamped in the limiting groove 153.

[0028] The bottom end of the extension rod 1 is connected with a telescopic rod 2, and the telescopic rod 2 includes a fixed rod 20 and a sliding rod 21. The sliding rod 21 is slidably inserted into the fixed rod 20, and the top end of the sliding rod 21 slides out of the fixed rod 20 and is connected to the extension rod 1. An adjustment component 22 for adjusting the length of the telescopic rod 2 is provided on the fixed rod 20. The adjustment component 22 includes two fixed plates 220, and the fixed plates 220 are vertically fixedly connected to the fixed rod 20. A rotating rod 221 is rotatably connected between the two fixed plates 220. A second spring 222 is arranged between the bottom end of the rotating rod 21 and the fixed rod 20, and the second spring 22 has the tendency to drive the bottom end of the rotating rod 221 to rotate away from the fixed rod 20; a limiting rod 223 is fixedly connected to the top end of the rotating rod 221, a through hole 224 is opened in the fixed rod 20, and a plurality of adjusting grooves 225 are opened on the sliding rod 21 along its own length direction, and the through hole 224 is arranged corresponding to any one of the adjusting grooves 225, and the limiting rod 223 passes through the through hole 224 and is clamped in the adjusting groove 225.

[0029] The extension rod 1 and the top end of the sliding rod 21 are hinged together by a hinge 3, and a locking assembly 4 is arranged on the side wall of the extension rod 1 away from the hinge 3. The locking assembly 4 includes two horizontally arranged bearing plates 40, and an insertion rod 41 is slidably inserted between the two bearing plates 40. The insertion rod 41 is arranged along the length direction of the extension rod 1, and a support plate 42 is fixedly connected to the insertion rod 41. The support plate 42 is located between the two bearing plates 40. A third spring 43 is arranged between the support plate 42 and the upper bearing plate 40, and the third spring 43 has a tendency to drive the support plate 42 to move downward; a locking plate 44 is fixedly connected to the sliding rod 21, and a locking hole 45 is opened in the locking plate 44. The bottom end of the insertion rod 41 is inserted into the locking hole 45, and the top end of the insertion rod 41 is fixedly connected to a pull ring 46.

[0030] A cross-shaped mounting frame 5 is fixedly connected to the bottom end of the fixing rod 20 , and a plurality of universal wheels 6 are mounted on the bottom end of the mounting frame 5 , so as to facilitate the movement of the maintenance tool.

[0031] The utility model is further described above with the help of specific embodiments, but it should be understood that the specific description here should not be construed as limiting the essence and scope of the utility model. Various modifications made to the above embodiments by ordinary technicians in this field after reading this specification are all within the scope of protection of the utility model.

Claims

1. A tool for repairing overhead crane track walkway plates, characterized in that: It includes an extension rod, one end of which is provided with a sleeve clamp for fixing a nut, the top of the extension rod is provided with a mounting plate, the mounting plate is provided with a clamping joint, the bottom end of the sleeve clamp is provided with a clamping groove, the clamping joint is inserted into the clamping groove, and a clamping component for fixing the sleeve clamp is provided in the clamping joint.

2. The overhead crane track walkway plate maintenance tool according to claim 1, characterized in that: The snap-fit ​​assembly includes a snap-fit ​​ball, a receiving groove is horizontally opened in the snap-fit ​​joint, the snap-fit ​​ball is movably arranged in the receiving groove, the snap-fit ​​ball part is located outside the snap-fit ​​joint, a first spring is arranged between the snap-fit ​​ball and the bottom of the receiving groove, a limiting groove is opened on the side wall of the snap-fit ​​groove, and the snap-fit ​​ball is clamped in the limiting groove.

3. The overhead travelling crane track walkway plate maintenance tool according to claim 1, characterized in that: The end of the extension rod away from the sleeve clamp is connected to a telescopic rod, and the telescopic rod includes a fixed rod and a sliding rod. The sliding rod is slidably inserted into the fixed rod and one end passes through the fixed rod. The end of the sliding rod passing through the fixed rod is connected to the extension rod, and an adjustment component for adjusting the length of the telescopic rod is provided on the fixed rod.

4. The overhead crane track walkway plate maintenance tool according to claim 3, characterized in that: The adjustment assembly includes two fixing plates arranged on the fixing rod, a rotating rod is rotatably connected between the two fixing plates, a second spring is arranged between one end of the rotating rod and the fixing rod, a limiting rod is arranged at the other end of the rotating rod, a through hole is opened in the fixing rod, a plurality of adjusting grooves are opened on the sliding rod along its length direction, and the limiting rod passes through the through hole and is clamped in the adjusting groove.

5. The overhead travelling crane track walkway plate maintenance tool according to claim 3, characterized in that: The extension rod and the sliding rod are hinged together through a hinge, and a locking component is arranged on the side of the extension rod away from the hinge.

6. The overhead travelling vehicle track walkway plate maintenance tool according to claim 5, characterized in that: The locking assembly includes two bearing plates arranged on the extension rod, an insertion rod is slidably inserted between the two bearing plates, the insertion rod is arranged along the length direction of the extension rod, a support plate is arranged on the insertion rod, the support plate is located between the two bearing plates, a third spring is arranged between the support plate and the upper bearing plate, a locking plate is arranged on the sliding rod, a locking hole is opened in the locking plate, the bottom end of the insertion rod is inserted into the locking hole, and a pull ring is arranged on the top of the insertion rod.

7. The overhead travelling vehicle track walkway plate maintenance tool according to claim 3, characterized in that: A mounting frame is arranged at one end of the telescopic rod away from the extension rod, and a plurality of universal wheels are arranged on the mounting frame.

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