Insulator replacement device

Abstract

The utility model discloses an insulator replacement device relates to fixture technical field, and it is supposed to solve the technical problem of inconvenient operation of insulator replacement through the line clamp in the prior art. The utility model discloses including upper fixture and lower fixture, the accommodating space of accommodating insulator is formed between upper fixture and lower fixture, upper fixture is cooperated with insulator, lower fixture is cooperated with cross arm, upper fixture with lower fixture is connected through adjusting device, and adjusting device includes wire harness and adjusting portion, and the length of wire harness can be adjusted adjusting portion and makes the distance change between upper fixture and lower fixture. The utility model discloses upper fixture, lower fixture etc. are directly clamped on insulator and cross arm with upper fixture and lower fixture, and the distance between upper fixture and lower fixture is adjusted through adjusting device, and it is convenient to dismantle insulator, and the operation is simple.

Description

Technical Field

[0001] This utility model belongs to the field of clamp technology, specifically relating to an insulator replacement device. Background Technology

[0002] Insulators are devices installed between conductors at different potentials or between a conductor and a grounding component, capable of withstanding voltage and mechanical stress. Insulators come in many types and shapes. While different types of insulators vary considerably in structure and appearance, they all consist of two main parts: insulating components and connecting hardware. Tension poles also play a crucial role in power transmission, capable of withstanding the lateral and longitudinal tension of conductors, while simultaneously bearing greater loads and angular loads. Insulators on tension poles operate in multiple horizontal layers, in a relatively harsh working environment, susceptible to dust and rain damage, leading to compromised insulation performance. Furthermore, insulators on tension poles also bear significant mechanical tension, making them prone to mechanical damage.

[0003] Insulators need to be replaced when they are damaged, aged, or have degraded mechanical properties. Currently, insulator replacement is mainly done using wire clamps and tensioners. The specific operation involves first clamping the wire clamp onto the insulated conductor, then fixing the tensioner and wire rope to the crossarm, and connecting the wire rope to the pull ring on the wire clamp. Next, the tensioner's wrench is turned, gradually tightening the wire rope and relieving tension at both ends of the insulator. Finally, the old insulator is removed and replaced with a new one. However, this method requires the installation of wire clamps, making it inconvenient to use and prolonging the insulator replacement time. Utility Model Content

[0004] This utility model discloses an insulator replacement device, which aims to solve the technical problem of inconvenience in replacing insulators using a wire clamp in the prior art.

[0005] To solve the aforementioned technical problems, the present invention adopts the following technical solution:

[0006] An insulator replacement device includes an upper clamp and a lower clamp, which form a receiving space for accommodating an insulator. The upper clamp engages with the insulator, and the lower clamp engages with a crossarm. The upper clamp and the lower clamp are connected by an adjustment device, which includes a wire harness and an adjustment part. The adjustment part can adjust the length of the wire harness to change the distance between the upper clamp and the lower clamp.

[0007] With this technical solution, the upper and lower clamps can be directly engaged with the insulators and crossarms. The wiring harness design connects the upper and lower clamps, placing the insulator within the space between them. Adjusting the length of the wiring harness between the upper and lower clamps changes the distance between them, thus relieving tension at both ends of the insulator or insulator string. This facilitates the removal of old insulators and replacement with new ones. Since no wire clamps or tensioning devices are required, simply engaging the upper and lower clamps in their respective positions simplifies the insulator disassembly process and makes it more convenient to use.

[0008] Both the upper and lower clamps are V-shaped structures. The upper clamp is provided with a first hook that engages with the pull ring of the tension clamp, and the lower clamp is detachably connected to the wire harness.

[0009] With this technical solution, both the upper and lower clamps are designed as V-shaped structures, creating an angle between them. Compared to a straight plate, this structure offers better structural stability. When the lower clamp engages with the crossarm, it cooperates with the crossarm, confining it within the angle and preventing the lower clamp from sliding in the vertical plane with the crossarm as the center. The upper clamp engages with the curved surface of the insulator, further enhancing the stability of the device during use. The first hook allows for quick initial connection between the device and the conductor, improving the efficiency of insulator replacement.

[0010] The included angle of the V-shaped structure is 110°-140°.

[0011] By adopting this technical solution, the included angle can be set to match insulators with different arc-shaped surfaces, allowing the upper clamp to match the arc-shaped surface of the insulator, and the lower clamp to match crossarms of different heights, thus aligning the included angle between the crossarm and the lower clamp. This increases both the stability and practicality of the device during use.

[0012] The lower clamp is provided with hanging rings at both ends. One side of the hanging ring is connected to the adjustment part, and the other side is connected to the wire harness through a first connecting device. The first connecting device is a second hook, and the shape and size of the second hook are matched with the shape and size of the hanging ring.

[0013] With this technical solution, the second hook and hanging ring facilitate the connection between the lower clamp and the crossarm, simplifying the connection method and making it more convenient to use.

[0014] The adjusting part includes a tensioner, which is connected to a hanging ring via a second connecting device. The second connecting device includes a U-shaped plate with connecting holes on its two side plates. A first bolt passes through the connecting hole on one side, the hanging ring, and the connecting hole on the other side in sequence and is connected to the hanging ring. The top plate of the U-shaped plate is connected to the tensioner via a second bolt.

[0015] After adopting this technical solution, the wire tensioner is connected to the hook through the second connecting device. Since the wire tensioner relies on manually moving the tensioner wrench to tighten the wire harness, a U-shaped connecting plate is set between the wire tensioner and the hanging ring, which can provide space for the tensioner to move without affecting the stability of the connection between the lower clamp and the crossarm, thereby improving the user's smoothness and user experience when using this device.

[0016] The adjustment part includes a telescopic hydraulic cylinder, which is connected to the lower clamp via a hanging ring.

[0017] After adopting this technical solution, the extension and retraction of the wire harness is controlled by a telescopic hydraulic cylinder, which simplifies the operation of retracting and tightening the wire harness, and further simplifies the replacement of insulators.

[0018] The upper clamp is equipped with a pulley, and the pulley is connected to the upper clamp via a third connecting device.

[0019] By adopting this technical solution, the addition of pulleys makes the adjustment of the wire harness by the adjustment unit smoother and more seamless. Furthermore, the low friction of the pulleys can protect the wire harness, extending its service life and reducing costs.

[0020] The wire harness is a steel wire rope with a length of 1100-1300mm.

[0021] After adopting this technical solution, steel wire rope is used as the wire harness. The steel wire rope has high hardness, wear resistance, strong stability, can be used multiple times, and has a certain degree of flexibility so that it can be bundled, thereby achieving the effect of unloading the force at both ends of the insulator.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0023] (1) Using upper clamps and lower clamps, the upper clamps and lower clamps are directly clamped onto the insulator and crossarm. The distance between the upper clamps and lower clamps is adjusted by the adjustment device, which makes it easy to disassemble the insulator and the operation is simple.

[0024] (2) Using angled steel plates, etc., not only makes the upper clamp fit with the arc-shaped surface of the insulator, but also makes the lower clamp and the crossarm stable, thus increasing the stability of the device during use.

[0025] (3) The use of first hanging ring, second hanging ring, etc. simplifies the connection between this device and the wire and crossarm, and simplifies the operation.

[0026] (4) The use of a tensioner and a second connecting device increases the smoothness of the tensioner in use and improves the user's comfort when using the device.

[0027] (5) The use of telescopic hydraulic cylinders further simplifies the operation of wire harness tightening, making the operation more convenient.

[0028] (6) The use of steel wire ropes and the like improves the service life of this device, and the length of the steel wire rope can be matched with the insulators of most tension rods, which improves the practicality of this device. Attached Figure Description

[0029] This utility model will be described by way of example and with reference to the accompanying drawings, wherein:

[0030] Figure 1 This is a three-dimensional structural diagram of an insulator replacement device according to the present invention;

[0031] Figure 2 This is a front view structural diagram of Example 1;

[0032] Figure 3 This is a schematic diagram showing the positional structure of an insulator replacement device, tension clamp, crossarm, and utility pole according to this utility model.

[0033] Figure Labels

[0034] 1-Lower clamp, 2-Hanging ring, 3-Second connecting device, 4-Tightener, 5-Wire rope, 6-Pulley, 7-Third connecting device, 8-Upper clamp, 9-First hook, 10-Rope buckle, 11-Second hook, 12-Telescopic cylinder, 13-Crossbeam. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments and accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. The components of the embodiments of this application described and marked in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0036] In the description of the embodiments of this application, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0037] The following is combined with Figures 1-3 This utility model will be described in detail.

[0038] Example 1

[0039] An insulator replacement device, such as Figure 1 and Figure 3 As shown, it includes an upper clamp 8 and a lower clamp 1, which form a receiving space for an insulator. The upper clamp 8 cooperates with the insulator, and the lower clamp 1 cooperates with the crossarm 13. The upper clamp 8 and the lower clamp 1 are connected by an adjustment device, which includes a wire harness and an adjustment part. The adjustment part can adjust the length of the wire harness to change the distance between the upper clamp 8 and the lower clamp 1.

[0040] In this embodiment, the upper clamp 8 and the lower clamp 1 are made of stainless steel. Stainless steel is corrosion-resistant, has good rigidity, and can withstand large tensile forces.

[0041] The upper clamp 8 and the lower clamp 1 can be directly clamped onto the insulator and the crossarm 13, such as Figure 3 As shown, the wire harness design connects the upper clamp 8 and the lower clamp 1, with the insulator positioned within the space between them. Adjusting the length of the wire harness between the upper clamp 8 and the lower clamp 1 via the adjustment mechanism changes the distance between them, thus relieving tension at both ends of the insulator or insulator string. This facilitates the removal of old insulators and replacement with new ones. Since no wire clamps or tensioning devices are required, simply snapping the upper clamp 8 and the lower clamp 1 into their respective positions simplifies the insulator removal process and makes it more convenient to use.

[0042] In this embodiment, both the upper clamp 8 and the lower clamp 1 are V-shaped structures. The upper clamp 8 is provided with a first hook 9 that cooperates with the pull ring of the tension clamp. The lower clamp 1 is detachably connected to the wire harness.

[0043] In this embodiment, a tension clamp refers to a hardware used to fix a conductor to withstand conductor tension and to attach the conductor to a tension string or tower. A tension clamp typically consists of a clamp body, a clamping core, a connecting part, and a pull ring. The pull ring is usually a U-shaped design, such as... Figure 3 As shown, both ends are connected to the connecting holes on both sides of the clamp body by threads, which is used to fix and adjust the position of the wire clamp.

[0044] In this embodiment, both the upper clamp 8 and the lower clamp 1 are made of angle steel, and the angle steel is made of stainless steel.

[0045] In this embodiment, the curved side of the first hook 9 is perpendicular to the upper clamp 8, such as... Figure 1 As shown.

[0046] In this embodiment, the first hook 9 is also made of stainless steel, and the first hook 9 is connected to the upper clamp 8 by welding. The welding connection is stable, firm and reliable.

[0047] In this embodiment, the radius of the first hook 9 is 40mm.

[0048] Both the upper clamp 8 and the lower clamp 1 are designed with a V-shaped structure, creating an included angle between them. Compared to a straight plate, this structure offers better structural stability. When the lower clamp 1 is engaged with the crossarm 13, it cooperates with the crossarm 13, confining the crossarm 13 within the included angle and preventing the lower clamp 1 from sliding in the vertical plane with the crossarm 13 as the center. The upper clamp plate can also engage with the curved surface of the insulator, further enhancing the stability of the device during use. The first hook 9 allows for quick initial connection between the device and the conductor, improving the efficiency of insulator replacement.

[0049] In this embodiment, the included angle of the V-shaped structure is 110°-140°, preferably 130°.

[0050] In this embodiment, the projected length of the upper clamp 8 and the lower clamp 1 in the vertical plane is 405mm.

[0051] The included angle can be set to cooperate with insulators with different curved surfaces, so that the upper clamp 8 cooperates with the curved surface of the insulator, and the lower clamp 1 cooperates with crossarms 13 of different heights, and the included angle between the crossarm 13 and the lower clamp 1 is matched. This increases the stability of the device in use, and also increases its practicality.

[0052] In this embodiment, both ends of the lower clamp 1 are provided with hanging rings 2. One side of the hanging ring 2 is connected to the adjustment part, and the other side is connected to the wire harness through a first connecting device. The first connecting device is a second hook 11, and the shape and size of the second hook 11 match the shape and size of the hanging ring 2.

[0053] In this embodiment, the radius of the hanging ring 2 is 40mm, the hanging ring 2 is made of stainless steel, and the hanging ring 2 is connected to the lower clamp 1 by welding. Figure 1 As shown.

[0054] In this embodiment, as Figure 2 As shown, the top of the second hook 11 is connected to the rope buckle 10 via the second connecting device 3. The rope buckle 10 is detachably connected to the wire harness. By fixing the wire harness to the rope buckle 10, the connection point between the rope buckle 10 and the wire harness can be relatively flat, preventing tipping during use. In this embodiment, the second connecting device 3 has the same shape and structure as the second connecting device 3 connecting the tensioner 4 and the hanging ring 2.

[0055] The second hook 11 and the hanging ring 2 facilitate the connection between the lower clamp 1 and the crossarm 13, simplifying the connection method between the lower clamp 1 and the crossarm 13, and making it more convenient to use.

[0056] In this embodiment, the adjustment part includes a tensioner 4, which is connected to the hanging ring 2 via a second connecting device 3. The second connecting device 3 includes a U-shaped plate with connecting holes on its two side plates. A first bolt passes through the connecting hole on one side, the hanging ring 2, and the connecting hole on the other side in sequence and is then connected to the hanging ring 2. The top plate of the U-shaped plate is connected to the tensioner 4 via a second bolt.

[0057] In this embodiment, the tensioner 4 is a stainless steel tensioner 4, which is widely praised for its excellent corrosion resistance and long service life. Stainless steel effectively resists the erosion of external factors such as moisture and oxygen, maintaining stable performance even in harsh environments. Furthermore, the stainless steel tensioner 4 also possesses high strength and hardness, capable of withstanding significant tensile force to ensure a secure binding.

[0058] In this embodiment, the second connecting device 3 is made of stainless steel.

[0059] The tensioner 4 is connected to the hook via the second connecting device 3. Since the tensioner 4 relies on the manual movement of the tensioner 4 wrench to tighten the wire harness, a U-shaped connecting plate is set between the tensioner 4 and the hanging ring 2, which can provide space for the tensioner 4 to move without affecting the stability of the connection between the lower clamp 1 and the crossarm 13, thereby improving the user's smoothness and user experience when using this device.

[0060] In this embodiment, the upper clamp 8 is provided with a pulley 6, and the pulley 6 is connected to the upper clamp 8 through a third connecting device 7.

[0061] In this embodiment, as Figure 1 As shown, pulley 6 has two pulleys.

[0062] In this embodiment, the distance between the two pulleys 6 is 350mm.

[0063] In this embodiment, the radius of the pulley 6 is 30mm.

[0064] In this embodiment, the third connecting device 7 consists of two clamping plates disposed on both sides of the upper clamping fixture 8. The clamping plates are connected to the upper clamping fixture 8 by welding, and each clamping plate is provided with a third bolt for connecting the pulley 6.

[0065] The pulley 6 allows for smoother and more precise adjustment of the wire harness by the adjustment unit. Furthermore, the low friction of the pulley 6 protects the wire harness, extending its lifespan and reducing costs.

[0066] In this embodiment, the wire harness is a steel wire rope 5, and the length of the steel wire rope 5 is 1100-1300mm.

[0067] In this embodiment, the wire rope 5 is selected to be 1230mm in length. In other embodiments, the device with other lengths of wire rope 5 can be adapted to the distance between the tension clamp and the crossarm 13.

[0068] The steel wire rope 5 has high hardness, wear resistance, strong stability, and can be used multiple times. At the same time, it has a certain degree of flexibility and can be bundled to relieve the force at both ends of the insulator.

[0069] The specific method of using this utility model is as follows:

[0070] Reference Figure 1 and Figure 3 When using this device, first hang the first hook 9 directly on the tension clamp's pull ring, and at the same time make the inner side of the V-shaped structure of the upper clamp 8 contact the arc-shaped surface of the insulator. Then disconnect the connection between the second hook 11 and the hanging ring 2, and clamp the lower clamp 1 between the crossarm 13 and the pole, so that the crossarm 13 is in the middle of the V-shaped structure of the lower clamp 1. Then reconnect the second hook 11 and the hanging ring 2.

[0071] After preparation, the user tightens the wire rope 5 by turning the wrench on the tensioner 4. The wire rope 5 is gradually tightened onto the tensioner 4 through the two pulleys 6. As the wire rope 5 is gradually tightened, the distance between the upper clamp 8 and the lower clamp 1 becomes closer and closer. The insulator or insulator string that was originally between the upper clamp 8 and the lower clamp 1 begins to hang down towards the ground in an arc shape, so that the two ends of the insulator are relieved of tension. At this time, the user can replace the old insulator according to the conventional replacement method. This device does not require the wire clamp, tensioner 4 and wire rope 5 to be installed separately, which is simpler to operate and can also improve work efficiency.

[0072] Example 2

[0073] This embodiment is basically the same as Embodiment 1, except that: in this embodiment, as shown in the example... Figure 2 As shown, the adjustment part includes a telescopic cylinder 12, which is connected to the lower clamp 1 via a hanging ring 2.

[0074] In this embodiment, the fixed end of the telescopic cylinder 12 is welded to the hanging ring 2.

[0075] In this embodiment, the other end of the wire rope 5 is directly attached to the hanging ring 2.

[0076] In this embodiment, the extension and retraction of the wire harness is controlled by the telescopic cylinder 12, simplifying the operation of tightening and retracting the wire harness and further simplifying the insulator replacement operation. In other embodiments, a screw mechanism can be installed at the extension end of the telescopic cylinder 12, using the principle of screw transmission to convert the extension and retraction motion into rotation to wind up the wire harness.

[0077] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An insulator replacement device, characterized in that: It includes an upper clamp (8) and a lower clamp (1), which form a receiving space for accommodating an insulator. The upper clamp (8) cooperates with the insulator, and the lower clamp (1) cooperates with the crossarm (13). The upper clamp (8) and the lower clamp (1) are connected by an adjustment device, which includes a wire harness and an adjustment part. The adjustment part can adjust the length of the wire harness to change the distance between the upper clamp (8) and the lower clamp (1).

2. The insulator replacement device according to claim 1, characterized in that: Both the upper clamp (8) and the lower clamp (1) are V-shaped structures. The upper clamp (8) is provided with a first hook (9) that cooperates with the pull ring of the tension clamp. The lower clamp (1) is detachably connected to the wire harness.

3. An insulator replacement device according to claim 2, characterized in that: The included angle of the V-shaped structure is 110°-140°.

4. An insulator replacement device according to claim 1, characterized in that: Both ends of the lower clamp (1) are provided with hanging rings (2). One side of the hanging ring (2) is connected to the adjustment part, and the other side is connected to the wire harness through a first connecting device. The first connecting device is a second hook (11), and the shape and size of the second hook (11) match the shape and size of the hanging ring (2).

5. An insulator replacement device according to any one of claims 1-4, characterized in that: The adjustment part includes a tensioner (4), which is connected to the hanging ring (2) via a second connecting device (3). The second connecting device (3) includes a U-shaped plate with connecting holes on its two side plates. A first bolt passes through the connecting hole on one side, the hanging ring (2), and the connecting hole on the other side in sequence and is connected to the hanging ring (2). The top plate of the U-shaped plate is connected to the tensioner (4) via a second bolt.

6. An insulator replacement device according to any one of claims 1-4, characterized in that: The adjustment part includes a telescopic cylinder (12), which is connected to the lower clamp (1) via a hanging ring (2).

7. An insulator replacement device according to any one of claims 1-4, characterized in that: The upper clamp (8) is provided with a pulley (6), and the pulley (6) is connected to the upper clamp (8) through a third connecting device (7).

8. An insulator replacement device according to any one of claims 1-4, characterized in that: The wire harness is a steel wire rope (5), and the length of the steel wire rope (5) is 1100-1300mm.

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