Auxiliary device for replacing pin insulator

Abstract

The invention provides a pin insulator replacement auxiliary device which comprises a base, a tightener, a wire supporting plate and a fixing assembly, a supporting frame is arranged at the top of the base, a cantilever is detachably arranged on the supporting frame, a pulley is arranged at the end of the cantilever, and the tightener can also be detachably arranged on the supporting frame. A lifting rope of the tightener extends in the length direction of the cantilever and crosses the pulley to suspend a connecting rod, connecting plates are movably arranged at the two ends of the connecting rod, the two connecting plates are vertically arranged, limiting pieces for limiting the connecting plates from slipping are arranged on the connecting rod, the wire supporting plate is horizontally arranged, connecting shafts are fixedly arranged on the two sides of the wire supporting plate, and the connecting shafts are connected with the connecting rods. The two connecting shafts are connected with the two connecting plates respectively, the fixing assembly is arranged at the bottom of the base and used for fixing the base and a cross arm, and the problem that in the prior art, when an insulator is replaced, temporary supporting of a wire which loses supporting is not fast and fast enough is solved.

Description

Technical Field

[0001] The invention relates to the technical field of insulator replacement, and in particular to a pin-type insulator replacement auxiliary device. Background Art

[0002] In the power system, insulators are installed on the crossarms. As an important component for supporting and fixing the conductors, insulators play a vital role. They not only ensure the insulation between the conductors and the ground or other objects, but also ensure the safe and stable operation of the power system. However, due to long-term exposure to the outdoor environment, insulators may be affected by factors such as lightning strikes, air pollution, human damage, bird activities, and bad weather, resulting in performance degradation or damage. Once an insulator fails, it may cause problems such as line short circuit and grounding, seriously affecting the normal operation of the power system. In order to ensure the stability and safety of the power system, it is necessary to regularly inspect and replace the insulators. However, in the process of replacing the insulators, the conductors will temporarily lose direct support and be suspended. This suspended state may cause a series of safety problems, such as the conductors sagging, swinging, or even falling off, posing a threat to surrounding equipment and personnel. In addition, the suspended conductors may also cause uneven current and voltage distribution in the power system, affecting the normal operation of the system.

[0003] Therefore, when replacing insulators, it is crucial to fix or support the conductors. When the traditional method of replacing pin insulators encounters a situation where the conductor diameter is large and the tension is high, a wire tensioner is required to loosen the tension-resistant section of the conductor. If there are multiple straight poles in the middle, the binding wires of each straight line need to be removed before loosening the conductors. After replacement, the wires need to be reeled in and tied again. Therefore, the previous method of replacing pin insulators requires multiple pole climbers to climb the pole and operate in multiple places, and the replacement efficiency is low. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a pin-type insulator replacement auxiliary device, which solves the problem in the prior art that temporary support for a conductor that has lost its support is not fast enough when replacing an insulator.

[0005] According to an embodiment of the present invention, a pin-type insulator replacement auxiliary device includes a base, a tensioner, a wire support plate and a fixing assembly, a support frame is provided on the top of the base, a cantilever is detachably provided on the support frame, a pulley is provided at the end of the cantilever, the tensioner is also detachably arranged on the support frame, a suspension rope of the tensioner extends along the length direction of the cantilever and passes over the pulley and then suspends a connecting rod, connecting plates are movably provided at both ends of the connecting rod, the two connecting plates are vertically arranged, and a limiter is provided on the connecting rod to limit the slipping of the connecting plate, the wire support plate is horizontally arranged, connecting shafts are fixedly provided on both sides of the wire support plate, the two connecting shafts are respectively connected to the two connecting plates, and the fixing assembly is arranged at the bottom of the base, and the fixing assembly is used to fix the base to the cross arm.

[0006] Compared with the prior art, the present invention has the following beneficial effects: by fixing the base on the crossarm, the wire tensioner reels in and releases the suspension rope to change the height of the horizontal rod of the wire support plate suspended on the suspension rope, so that the wire support plate supports the conductor at a suitable height. When temporarily supporting the conductor, it is only necessary to release the connecting rod and the connecting plate through the limiter so that the conductor to be supported can be placed on the wire support plate through the gap between the two connecting plates. Subsequently, the limiter can be used to limit the connecting plate from slipping off the connecting rod, thereby quickly and temporarily supporting the conductor, ensuring that the conductor is in a stable operating state during the replacement of the insulator.

[0007] Furthermore, each connecting shaft is rotatably connected to the corresponding connecting plate.

[0008] Furthermore, through holes are provided on both connecting plates, and after the connecting shafts on both sides of the support plate pass through the through holes, limiting parts are also provided to limit the connecting shafts from slipping out of the through holes.

[0009] Furthermore, cross bars are provided at both ends of the bottom of the wire support plate.

[0010] Furthermore, the limiting member is a cotter pin, and one end of each connecting shaft passing through the through hole is provided with a plug hole for inserting the cotter pin.

[0011] Furthermore, the support plate is an arc-shaped structure.

[0012] Furthermore, the support frame includes three support plates, one end of each support plate is connected to the base, and the other end of each support plate is tilted in a direction close to each other and then connected as a whole, and the cantilever and the tensioner can be detachably arranged on one of the support plates.

[0013] Furthermore, each support plate is provided with a plurality of mounting holes, and the cantilever and the tensioner are connected to the support plate by bolts.

[0014] Furthermore, the fixing assembly includes: a screw rod, one end of which is fixedly connected to the base, and the other end of the screw rod passes through the cross arm and is screwed with a nut.

[0015] Furthermore, it also includes a lifting ring, which is fixedly arranged on the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention.

[0017] Figure 2 It is a schematic diagram of the overall structure from another perspective of an embodiment of the present invention.

[0018] Figure 3 For the embodiment of the present invention Figure 2 A large picture is posted in the middle.

[0019] Figure 4 It is a front view of an embodiment of the present invention.

[0020] Figure 5 FIG. 4 is a top view of an embodiment of the present invention.

[0021] In the above drawings: 1. base; 2. support frame; 3. cantilever; 4. pulley; 5. tensioner; 6. lifting rope; 7. connecting rod; 8. connecting plate; 9. wire support plate; 10. connecting shaft; 11. cross bar; 12. cotter pin; 201. support plate; 13. mounting hole; 14. screw; 15. nut; 16. lifting ring. DETAILED DESCRIPTION

[0022] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0023] like Figure 1-5As shown, an embodiment of the present invention proposes a pin insulator replacement auxiliary device, including a base 1, a tensioner 5, a wire support plate 9 and a fixing assembly. A support frame 2 is provided on the top of the base 1, a cantilever 3 is detachably provided on the support frame 2, a pulley 4 is provided at the end of the cantilever 3, and the tensioner 5 is also detachably arranged on the support frame 2. A suspension rope 6 of the tensioner 5 extends along the length direction of the cantilever 3 and passes over the pulley 4 and then is suspended with a connecting rod 7. Connecting plates 8 are movably provided at both ends of the connecting rod 7. The two connecting plates 8 are both vertically arranged. A limiting piece for limiting the slipping of the connecting plate 8 is provided on the connecting rod 7. The wire support plate 9 is horizontally arranged. Connecting shafts 10 are fixedly provided on both sides of the wire support plate 9. The two connecting shafts 10 are respectively connected to the two connecting plates 8. The fixing assembly is arranged at the bottom of the base 1, and the fixing assembly is used to fix the base 1 to the cross arm. In this embodiment, the connection between the lifting rope 6 and the connecting rod 7 can be through a hook or by directly sleeved the lifting rope 6 on the connecting rod 7. Both connecting plates 8 are provided with movable holes for the connecting rod 7 to pass through. One end of the connecting rod 7 has a square block for limiting, so that the connecting rod 7 can be horizontally passed through the movable holes of the two connecting plates 8 and then be limited by the limiting piece. The worker needs to operate the limiting piece to release the connecting rod 7. When using this device, the worker installs this device on the cross arm through the fixing assembly (it should be noted that the cross arm is an angle iron fixed horizontally at the top or middle of the electric pole, and is an important component of the pole tower. It is mainly used to install insulators and hardware to support the conductors and lightning conductors, and to keep a certain safety distance as required). Then, when replacing the insulator, the horizontal height of the support plate 9 suspended by the lifting rope 6 is fine-tuned through the tensioner 5 to make it at a suitable position height. The tensioner 5 is also called a ratchet tightener. It is a commonly used device in this field and is installed on the overhead line. The suspension rope 6 is used to tighten the conductor during road construction and is a part of the tensioner 5. A ratchet is provided on the reel of the reeling mechanism for reeling the suspension rope 6 on the tensioner 5 of this embodiment, and a locking mechanism for limiting the rotation of the ratchet is provided on the corresponding reeling mechanism, that is, when the tensioner 5 releases or reels the suspension rope 6, the suspension rope 6 will not be pulled out from the tensioner 5 under the action of gravity. As a similar embodiment, the tensioner 5 may also use a motor, and a reel is connected to the output end of the motor, and the suspension rope 6 is reeled on the reel. This is a conventional method and the specific structure will not be described in detail. When replacing the insulator, the connecting plate 8 and the connecting rod 7 are released by the limiter, and the connecting rod 7 is moved so that the connecting rod 7 opens the gap between the two connecting plates 8, allowing the wire to enter between the two connecting plates 8 and be placed on the wire support plate 9, and then the connecting rod 7 is connected to the connecting plate 8 by the limiter, so as to achieve the purpose of temporarily supporting the wire. It is no longer necessary for personnel to retract and release the wires of the adjacent pole towers. While reducing the number of personnel, the time for replacing the pin insulator is greatly shortened. While achieving quick and rapid support for the wire, it also ensures that the wire is in a stable state during the replacement of the insulator, effectively avoiding the occurrence of accidents.

[0024] like Figure 1-3 As shown, further, each connecting shaft 10 is rotatably connected to the corresponding connecting plate 8. When the wire is placed on the top of the wire support plate 9 for temporary support, since the wire has a certain weight and the position supported by the wire support plate 9 is not necessarily the center position of the wire, the wire will inevitably be skewed at a certain angle relative to the wire support plate 9. By rotatably connecting the connecting shaft 10 to the connecting plate 8, the wire support plate 9 can also be rotated to adapt to the inclination of the wire.

[0025] like Figure 1-3 As shown, further, through holes are provided on both connecting plates 8, and after the connecting shafts 10 on both sides of the wire support plate 9 pass through the through holes, stoppers are provided to limit the connecting shafts 10 from slipping out of the through holes. In this embodiment, the connecting shafts 10 on both sides of the wire support plate 9 pass through the through holes of the two connecting plates 8 respectively, and the spacing between the two connecting plates 8 is greater than the width of the wire support plate 9, so that the wire support plate 9 can produce a small range of displacement in the horizontal direction, so as to adapt to the displacement caused by the shaking of the supported wire.

[0026] like Figure 1-3 As shown, further, both ends of the bottom of the wire support plate 9 are provided with cross bars 11. In this embodiment, there are two cross bars 11, which are respectively arranged at both ends of the wire support plate 9 and are formed integrally with the wire support plate 9. The cross bars 11 play a role of limiting, so that the wire support plate 9 can only rotate within a certain range. After exceeding the range, the cross bars 11 will be blocked by the side wall of the connecting plate 8, so that the wire support plate 9 can stably support the wire. Preferably, one end of the connecting plate 8 close to the cross bars 11 is an arc-shaped structure.

[0027] like Figure 1-3 As shown, further, the limiting member is a cotter pin 12, and one end of each connecting shaft 10 passing through the through hole is provided with a plug hole for inserting the cotter pin 12. The cotter pin 12 limits the connecting shaft 10 from slipping out of the through hole of the connecting plate 8. In one embodiment, the limiting member on the connecting rod 7 that limits the connecting plate 8 from slipping out is also a cotter pin 12.

[0028] like Figure 1-3 As shown, further, the wire support plate 9 is an arc-shaped structure. Specifically, the wire support plate 9 is an arc-shaped plate-like structure with an opening facing upward, so as to adapt to the arc of the outer wall of the wire, and allow wires of different diameters to be placed in the arc-shaped groove formed on the top of the wire support plate 9.

[0029] like Figure 1 , 2As shown in Figures 4 and 5, further, the support frame 2 includes three support plates 201, one end of each support plate 201 is connected to the base 1, and the other end of each support plate 201 is connected as a whole after being tilted in a direction close to each other, and the cantilever 3 and the tensioner 5 can be detachably arranged on one of the support plates 201. In this embodiment, three support plates 201 form the support frame 2, and the three support plates 201 support each other, and the two support plates 201 form a triangular structure with the base 1, thereby improving the stability and durability of the device, and can also provide strong support for the cantilever 3 to prevent it from bending under the gravity of the wire for a long time. Preferably, the support plate 201 is an angle steel, and the base 1 is welded from three angle steels.

[0030] like Figure 1 , 2 As shown in Figures 4 and 5, further, each support plate 201 is provided with a plurality of mounting holes 13, and the cantilever 3 and the tensioner 5 are connected to the support plate 201 by bolts. By passing the bolts through the mounting holes 13, the cantilever 3 and the tensioner 5 are fixed to the mounting plate. For different working conditions, workers can bolt the cantilever 3 to the support plates 201 in different directions as needed, and by passing the bolts through the mounting holes 13 in different positions, the distance that the cantilever 3 extends out of the support plate 201 can be changed to adapt to different working conditions. It should be noted that the cantilever 3 and the tensioner 5 are fixed on the same support plate 201, and the cantilever 3 and the tensioner 5 are provided with connection holes for convenient bolt connection.

[0031] like Figure 1 , 2 As shown in Figure 4, further, the fixing assembly includes: a screw rod 14, one end of which is fixedly connected to the base 1, and the other end of the screw rod 14 passes through the cross arm and is screwed with a nut 15. When the base 1 of the device is fixed on the cross arm, the screw rod 14 passes through the preset hole on the cross arm, and then the nut 15 is screwed into the screw rod 14 to lock the base 1 and the cross arm. Preferably, the base 1 is U-shaped, and two screw rods 14 are provided at one end of the base 1. When connecting the base 1 to the cross arm 11, only one end of the base 1 needs to be connected to the cross arm, that is, only the nuts 15 on the two screw rods 14 need to be fixed, and the end of the base 1 away from the screw rod 14 will not be lifted due to the gravity of the suspended wire.

[0032] like Figure 1-2 As shown, further, it also includes a lifting ring 16, which is fixedly arranged on the base 1. The lifting ring 16 is convenient for workers to lift the device to a high-altitude working area for installation by pulling a rope.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A pin insulator replacement auxiliary device, characterized in that: include: A base (1), a support frame (2) is provided on the top of the base (1), a cantilever (3) is detachably provided on the support frame (2), and a pulley (4) is provided at the end of the cantilever (3); A tensioner (5), the tensioner (5) is also detachably arranged on the support frame (2), a suspension rope (6) of the tensioner (5) extends along the length direction of the cantilever (3) and passes over the pulley (4) and then suspends a connecting rod (7), both ends of the connecting rod (7) are movably provided with connecting plates (8), the two connecting plates (8) are both vertically arranged, and a limiting member for limiting the sliding of the connecting plate (8) is provided on the connecting rod (7); A wire support plate (9), the wire support plate (9) is arranged horizontally, and connecting shafts (10) are fixedly arranged on both sides of the wire support plate (9), and the two connecting shafts (10) are respectively connected to the two connecting plates (8); A fixing component is arranged at the bottom of the base (1), and is used to fix the base (1) to the cross arm.

2. A pin insulator replacement auxiliary device as claimed in claim 1, characterized in that: Each connecting shaft (10) is rotatably connected to a corresponding connecting plate (8).

3. A pin insulator replacement auxiliary device as claimed in claim 2, characterized in that: Through holes are provided on the two connecting plates (8), and the connecting shafts (10) on both sides of the support plate (9) are provided with stoppers for limiting the connecting shafts (10) from slipping out of the through holes after passing through the through holes.

4. A pin insulator replacement auxiliary device as claimed in claim 3, characterized in that: Both ends of the bottom of the wire support plate (9) are provided with cross bars (11).

5. The pin insulator replacement auxiliary device according to claim 3, characterized in that: The limiting member is a split pin (12), and one end of each connecting shaft (10) passing through the through hole is provided with a plug hole for inserting the split pin (12).

6. The pin insulator replacement auxiliary device according to claim 1, characterized in that: The wire support plate (9) is an arc-shaped structure.

7. The pin insulator replacement auxiliary device according to claim 1, characterized in that: The support frame (2) comprises three support plates (201), one end of each support plate (201) is connected to the base (1), and the other end of each support plate (201) is connected as a whole after being tilted in a direction approaching each other, and the cantilever (3) and the tensioner (5) are both detachably arranged on one of the support plates (201).

8. The pin insulator replacement auxiliary device according to claim 7, characterized in that: Each support plate (201) is provided with a plurality of mounting holes (13), and the cantilever (3) and the tensioner (5) are connected to the support plate (201) via bolts.

9. The pin insulator replacement auxiliary device according to claim 1, characterized in that: The fixing assembly comprises a screw rod (14), one end of which is fixedly connected to the base (1), and the other end of which passes through the cross arm and is screwed to a nut (15).

10. The pin insulator replacement auxiliary device according to claim 1, characterized in that: It also comprises a lifting ring (16), which is fixedly arranged on the base (1).

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