Power transmission line overhead ground wire and optical cable lifting device

Abstract

The invention relates to the technical field of power transmission line maintenance tools, in particular to a power transmission line overhead ground wire and optical cable lifting device which comprises a fixing frame, a wire lifting lead screw, a nut, a speed wrench and a wire lifting hook, a front-back through mounting groove is formed in the lower side of the right portion of the fixing frame, a mounting through hole is formed in the upper side of the left portion of the fixing frame, and the wire lifting lead screw is arranged in the mounting through hole in a penetrating mode. The inner side of the left portion of the fixing frame is provided with a nut screwed to the outer side of the wire lifting lead screw. The device is reasonable and compact in structure, a vertical plate of a crosspiece on a pole tower is placed in the mounting groove, the width of the mounting groove is matched with the thickness of the vertical plate, in this way, the fixing frame can be supported, then an overhead ground wire or an optical cable to be lifted is hung in the wire lifting hook, then the nut is rotated through a speed wrench, and the overhead ground wire or the optical cable is lifted. The overhead ground wire or the optical cable can prevent the wire lifting lead screw from rotating along with the nut, so that the overhead ground wire or the optical cable to be lifted can be lifted to a target height by continuously rotating the nut, and subsequent operation is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power transmission line maintenance tools, and is an overhead ground wire and optical cable lifting device for a power transmission line. BACKGROUND

[0002] The existing overhead ground wire and optical cable lifting method for a power transmission line is mainly completed by means of a hand-operated hoist. The tool is not portable, the maintenance operation is time-consuming and labor-intensive, the physical fitness of the operator is required to be very high, the safety performance is poor, and the operation efficiency is low. In general, the operator reaches the operation position, fixes the hook or shackle of the hand-operated hoist on the selected fixed point, connects one end of the steel wire rope with the chain or hook of the hand-operated hoist, and connects the other end with the overhead ground wire, operates the hand-operated hoist, slowly tightens the chain, and gradually lifts the overhead ground wire. The operation has many defects. The hand-operated hoist needs to be operated manually, the lifting speed is slow, especially when frequent adjustment or large-scale lifting is required, the efficiency is low. Long-time operation of the hand-operated hoist can easily cause fatigue of the operator, affecting the construction progress and safety. If the operation is improper or the ground wire suddenly loosens, it can cause the ground wire to rebound, causing harm to the operator or equipment. The lifting speed and force of the hand-operated hoist are difficult to accurately control, which can cause uneven stress or excessive stretching of the ground wire, affecting the service life of the ground wire. In complex terrain (such as slopes, marshes, etc.), the installation and operation of the hand-operated hoist can be limited. SUMMARY

[0003] The present application provides an overhead ground wire and optical cable lifting device for a power transmission line, which overcomes the shortcomings of the prior art and effectively solves the problem of slow lifting speed of the existing lifting tool, which can easily cause harm to the operator or equipment.

[0004] The technical scheme of the present application is realized by the following measures: an overhead ground wire and optical cable lifting device for a power transmission line, comprising a fixing frame, a lifting screw rod, a nut, a quick wrench and a lifting hook, the fixing frame is provided with a front-and-rear through installation slot on the lower side of the right part, the fixing frame is provided with an installation through hole on the upper side of the left part, the lifting screw rod is arranged in the installation through hole, the nut is screwed to the outer side of the lifting screw rod, the quick wrench is arranged on the outer side of the nut, and the lifting hook is hingedly connected to the lower end of the lifting screw rod corresponding to the position below the fixing frame.

[0005] The following is a further optimization or / and improvement of the above-mentioned technical scheme of the application: The above-mentioned fixing frame can comprise a cross beam, a mounting block and a support rod, the cross beam is fixedly installed with the mounting block on the lower side of the right end, the mounting block is provided with a front-and-rear through installation slot on the lower side, the installation through hole is arranged on the lower side of the left part of the cross beam, and the support rod is fixedly installed between the lower side of the cross beam and the left side of the mounting block corresponding to the position right of the installation through hole.

[0006] The front side of the mounting block at the position above the corresponding installation slot can be provided with a first weight-reducing hole penetrating through front and back; or / and the upper side of the crossbeam at the position between the support rod and the mounting block is provided with a second weight-reducing hole penetrating through up and down.

[0007] The left part of the crossbeam can be fixedly installed with a guide ring, and the outer side of the lifting wire screw rod is distributed with at least one strip-shaped guide groove in a circumferential direction, and the guide ring at the position corresponding to each guide groove is fixedly provided with a guide block, each guide block is slidingly installed in the guide groove at the corresponding position, and the nut is screwed on the outer side of the lifting wire screw rod above the guide ring.

[0008] The lock catch can also be included, and the lock catch is connected with the lifting hook together.

[0009] The lower end of the lifting wire screw rod can be rotatably installed with a hinged seat, and the upper end of the lock catch is hingedly installed with the hinged seat together.

[0010] The structure of the present application is reasonable and compact, the vertical plate of the crossbar on the tower is put into the installation slot, the width of the installation slot matches the thickness of the vertical plate, so that the fixing frame can be supported, then the overhead ground wire or optical cable to be lifted is hung in the lifting hook, the overhead ground wire or optical cable can prevent the lifting wire screw rod from rotating with the nut by rotating the nut through the quick wrench, so that the overhead ground wire or optical cable to be lifted can be lifted to the target height by continuously rotating the nut, which is convenient for subsequent operation. BRIEF DESCRIPTION OF DRAWINGS

[0011] The Figure 1 The main view of the cross-sectional structure of the present application is shown in the schematic diagram.

[0012] The Figure 2 The left view of the cross-sectional structure of the lifting wire screw rod in the present application is shown in the schematic diagram.

[0013] The Figure 3 The top view of the cross-sectional structure of the lifting wire screw rod in the present application is shown in the schematic diagram.

[0014] The codes in the drawings are as follows: 1 is the lifting wire screw rod, 2 is the nut, 3 is the quick wrench, 4 is the lifting hook, 5 is the installation slot, 6 is the crossbeam, 7 is the mounting block, 8 is the support rod, 9 is the first weight-reducing hole, 10 is the second weight-reducing hole, 11 is the guide ring, 12 is the guide groove, 13 is the guide block, 14 is the lock catch, and 15 is the hinged seat. DETAILED DESCRIPTION

[0015] The present application is not limited by the following embodiments, and the specific implementation can be determined according to the technical scheme of the present application and the actual situation.

[0016] In the present application, in order to facilitate the description, the relative position relationship of each component is described according to the schematic diagram of the cross-sectional structure of the present application. Figure 1The layout is described using a diagrammatic method, such as the positional relationships of front, back, top, bottom, left, and right, which are based on the instructions attached. Figure 1 The orientation of the layout is determined by the direction of the map.

[0017] The present invention will be further described below with reference to embodiments and accompanying drawings: Example 1: As shown in the attached document Figure 1 , 2 As shown in Figure 3, the overhead ground wire and optical cable lifting device for the transmission line includes a fixed frame, a lifting screw 1, a nut 2, a quick wrench 3, and a lifting hook 4. The lower right side of the fixed frame has a through mounting groove 5, and the upper left side of the fixed frame has a mounting through hole. The lifting screw 1 passes through the mounting through hole. The inner left side of the fixed frame has a nut 2 screwed to the outside of the lifting screw 1. The quick wrench 3 is located outside the nut 2. The lower end of the lifting screw 1, corresponding to the position below the fixed frame, is hinged to the lifting hook 4.

[0018] Based on the requirements, the quick-release wrench 3 is a known ratchet wrench. During use, the vertical plate of the horizontal bar on the pole is placed into the mounting slot 5. The width of the mounting slot 5 matches the thickness of the vertical plate, thus providing support for the fixing frame. Then, the overhead ground wire or optical cable to be lifted is hung in the lifting hook 4. By turning the nut 2 with the quick-release wrench 3, the overhead ground wire or optical cable prevents the lifting screw 1 from rotating with the nut 2. Continuing to turn the nut 2 will lift the overhead ground wire or optical cable to the target height, facilitating subsequent operations.

[0019] Further optimization and / or improvement can be made to the above-mentioned overhead ground wires and optical cable lifters for transmission lines, based on actual needs: Example 2: As an optimization of the above examples, as shown in the appendix. Figure 1 , 2 As shown, the fixing frame includes a crossbeam 6, a mounting block 7, and a support rod 8. The lower right side of the crossbeam 6 is fixedly installed together with the upper side of the mounting block 7. The lower side of the mounting block 7 is provided with a through mounting groove 5. The mounting through hole is located on the lower left side of the crossbeam 6. The support rod 8 is fixedly installed between the lower side of the crossbeam 6 and the left side of the mounting block 7 at the position corresponding to the right of the mounting through hole.

[0020] Depending on the requirements, the crossbeam 6 can be made of readily available aluminum alloy channel steel, which reduces the weight of the fixing frame. The left side of the support rod 8 is inclined upward relative to the right side, and the nut 2 is located inside the crossbeam 6. During use, the vertical plate of the tower crossbar is inserted into the mounting groove 5, which provides support and prevents the fixing frame from tipping over. The support rod 8 provides support to the left side of the crossbeam 6, thereby increasing the strength of the fixing frame.

[0021] Example 3: As an optimization of the above examples, as shown in the appendix. Figure 1 , 3As shown, the mounting block 7, located above the mounting groove 5, has a first weight-reducing hole 9 that runs through the front and back; the crossbeam 6, located between the support rod 8 and the mounting block 7, has a second weight-reducing hole 10 that runs through the upper and lower sides.

[0022] During use, by setting the first weight-reducing hole 9 and the second weight-reducing hole 10, the weight of the fixing frame can be reduced, which facilitates the transportation and carrying of the overhead ground wire and optical cable lifting device for transmission lines, and also reduces the labor intensity when the overhead ground wire and optical cable lifting device for transmission lines is used on the pole.

[0023] Example 4: As an optimization of the above examples, as shown in the appendix. Figure 1 , 2 As shown in Figure 3, a guide ring 11 is fixedly installed on the left side of the crossbeam 6. At least one strip-shaped guide groove 12 is distributed circumferentially on the outer side of the lifting screw 1. A guide block 13 is fixed in the guide ring 11 corresponding to each guide groove 12. Each guide block 13 is slidably installed in the guide groove 12 at the corresponding position. The nut 2 is screwed to the outer side of the lifting screw 1 above the guide ring 11.

[0024] Depending on the requirements, the crossbeam 6 can be an upward-opening U-shaped or channel steel. The guide ring 11 is fixedly installed on the inner left side of the crossbeam 6. Two strip-shaped guide grooves 12 are evenly distributed circumferentially on the outer side of the lifting screw 1. The cross-section of the guide grooves 12 is rectangular. During use, by setting the guide block 13, the lifting screw 1 can be limited to prevent it from shaking when the quick wrench 3 rotates it. This prevents the overhead ground wire or optical cable to be lifted from shaking during the lifting operation and thus avoids danger.

[0025] Example 5: As an optimization of the above examples, as shown in the appendix. Figure 1 As shown, it also includes a latch 14, which is connected to the lifting hook 4.

[0026] As required, the locking buckle 14 is a known shackle. During use, this design facilitates the placement of the overhead ground wire or fiber optic cable to be lifted within the locking buckle 14, and then the locking buckle 14 is connected to the lifting hook 4. This makes assembly and disassembly more convenient and prevents the overhead ground wire or fiber optic cable from popping out of the hook groove of the lifting hook 4 during lifting operations, thus improving safety during lifting operations.

[0027] Example 6: As an optimization of the above examples, as shown in the appendix Figure 1 As shown, a hinge seat 15 is rotatably mounted on the lower end of the lifting screw 1, and the upper end of the lock 14 is hinged together with the hinge seat 15.

[0028] In use, when the fixing frame is installed on the crossbar of the tower, the wire hook 4 can be rotated by a certain angle through the setting of the hinge seat 15, the overhead ground wire or optical cable wire to be lifted can be hooked, the installation precision of the fixing frame on the crossbar of the tower can be reduced, and thus the work efficiency can be improved.

[0029] The above technical features respectively constitute embodiments of the present application, have strong adaptability and implementation effect, and can be increased or decreased in unnecessary technical features according to actual needs to meet the needs of different situations.

[0030] The use process of the best embodiment of the present application takes the overhead ground wire suspension clamp inclination recovery work process as an example. Firstly, the ground electrician detects the insulation resistance of the insulation tool by using a megohmmeter, checks whether the metal tool and personal protection appliance are complete and intact; Secondly, the electrician who needs to climb the tower correctly wears the personal protection appliance and checks whether each part is connected well; Thirdly, the first electrician climbs the tower to the overhead ground wire crossarm work position with a transmission rope, fastens the safety belt, and hangs the insulating pulley at the target position, and then the second electrician climbs the tower; Fourthly, the first electrician and the second electrician on the tower and the ground electrician cooperate with each other to transmit the overhead ground wire wire hook and the wire protection insulating rope to the work position; Fifthly, the first electrician and the second electrician on the tower install the overhead ground wire and optical cable wire hook and the wire backup protection rope, and the protection margin (length) of the wire backup protection rope is reserved according to the demand; Sixthly, the first electrician or the second electrician on the tower uses the overhead ground wire and optical cable wire hook to lift the overhead ground wire, loosens the suspension clamp bolt, recovers to the appropriate position, and fastens according to the standard torque value of the corresponding bolt specification of the suspension clamp; Seventhly, the first electrician or the second electrician on the tower removes the overhead ground wire and optical cable wire hook and the wire backup protection rope, transmits them to the ground, checks whether there are any leftovers on the tower, reports the work supervisor, carries the insulating transmission rope down the tower after obtaining the consent of the work supervisor; Eighthly, the ground electrician arranges all tools and appliances and cleans the site, the work supervisor counts the tools and appliances, and the work supervisor reports to the dispatcher.

Claims

1. A power line overhead ground wire and optical cable riser, characterized by The fixing frame includes a horizontal beam, a mounting block and a supporting rod, the horizontal beam is fixedly installed with the mounting block at the right end of the horizontal beam, the mounting block is provided with a mounting slot penetrating through the front and back, the mounting hole is arranged on the left side of the horizontal beam, the wire pulling screw is arranged in the mounting hole, the mounting block is provided with a nut screwed on the outer side of the wire pulling screw, the nut is provided with a quick wrench, the wire pulling hook is hingedly installed on the lower end of the wire pulling screw corresponding to the position below the fixing frame.

2. The overhead ground wire and optical cable lifting device of the power transmission line according to claim 1, characterized in that The fixing frame includes a horizontal beam, a mounting block and a supporting rod, the horizontal beam is fixedly installed with the mounting block at the right end of the horizontal beam, the mounting block is provided with a mounting slot penetrating through the front and back, the mounting hole is arranged on the left side of the horizontal beam, the wire pulling screw is arranged in the mounting hole, the mounting block is provided with a nut screwed on the outer side of the wire pulling screw, the nut is provided with a quick wrench, the wire pulling hook is hingedly installed on the lower end of the wire pulling screw corresponding to the position below the fixing frame.

3. The overhead ground wire and optical cable riser of claim 2, wherein The mounting block is provided with a first weight-reducing hole penetrating through the front and back corresponding to the position above the mounting slot; or / and, the horizontal beam is provided with a second weight-reducing hole penetrating through the top and bottom corresponding to the position between the supporting rod and the mounting block.

4. The overhead ground and optical cable riser of claim 2 or 3, wherein The horizontal beam is fixedly installed with a guide ring on the left side, the wire pulling screw is provided with at least one strip-shaped guide groove distributed on the outer side of the wire pulling screw in a circumferential direction, the guide ring is fixedly installed with a guide block corresponding to the position of each guide groove, each guide block is slidingly installed in the corresponding guide groove, and the nut is screwed on the outer side of the wire pulling screw above the guide ring.

5. The overhead ground wire and optical cable riser of claim 1 or 2 or 3, wherein The locking buckle is connected with the wire pulling hook.

6. The transmission line overhead ground wire and optical cable riser of claim 4, wherein The locking buckle is connected with the wire pulling hook.

7. The overhead ground wire and optical cable riser of claim 1 or 2 or 3 or 6, wherein The wire pulling screw is rotatably installed with a hinged seat at the lower end, and the locking buckle is hingedly installed with the hinged seat at the upper end.

8. The transmission line overhead ground wire and optical cable riser of claim 4, wherein The wire pulling screw is rotatably installed with a hinged seat at the lower end, and the locking buckle is hingedly installed with the hinged seat at the upper end.

9. The overhead ground wire and optical cable riser of claim 5, wherein The wire pulling screw is rotatably installed with a hinged seat at the lower end, and the locking buckle is hingedly installed with the hinged seat at the upper end.

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