An insulating blanket device suitable for live-line work on 0.4kV low-voltage switchgear.

Abstract

This application relates to an insulating blanket device suitable for live-line work on 0.4kV low-voltage switchgear, comprising: an insulating blanket, a rolling shutter mechanism, a top support mechanism, and several clamping mechanisms. The clamping mechanisms include: a clamping adjustment rod, a clamping fixing part, and a lifting ring. The rolling shutter mechanism includes: a shaft frame, a lifting lug fixed to the top of the shaft frame, and a rotating shaft rotatably disposed at the bottom of the shaft frame. The rolling shutter mechanism is suspended below the clamping mechanisms. The insulating blanket is rolled onto the rotating shaft of the rolling shutter mechanism, with one end fixed to the shaft and the other end having an edging. The top support mechanism includes a support shaft and two top support rods. The support shaft passes through a through hole in the edging, and the two top support rods are located at opposite ends of the support shaft. This insulating blanket device allows for free adjustment of the shielding height, making it suitable for low-voltage switchgear of different heights, or for insulating different heights of the same low-voltage switchgear. It provides tight shielding and produces a good shielding effect.

Description

Technical Field

[0001] This utility model relates to the field of live-line working technology, and in particular to an insulating blanket device suitable for live-line working of 0.4kV low-voltage distribution cabinets. Background Technology

[0002] Live-line work on distribution networks helps improve power supply reliability, enables rapid power restoration, and reduces power outage losses. With the continuous promotion and operation of live-line work technology, different users have higher and more precise requirements for insulating blankets used in live-line work. During live-line work on 0.4kV distribution cabinets, there are many live devices inside the cabinet, the current is high, the space is small, and the distance between the work area and the live parts of the equipment is small. Currently, the commonly used insulation shielding method is to use multiple insulating blanket clamps to clamp the insulating blankets, thereby fixing the insulating blankets to the distribution cabinet and shielding the non-work areas inside the cabinet.

[0003] When using insulating blankets to cover non-construction areas of low-voltage distribution cabinets, each insulating blanket needs to be secured with at least four insulating blanket clips, and sometimes more. When the construction area within the distribution cabinet changes, the area covered by the insulating blanket needs to be changed, and the insulating blanket needs to be re-installed and re-clamped to cover the new non-construction area.

[0004] The existing method of using insulating blankets for shielding is time-consuming and labor-intensive, which increases the workload of on-site workers. Moreover, the use of ordinary insulating blankets may result in incomplete shielding, posing potential safety hazards to the shielding of low-voltage distribution cabinets. Utility Model Content

[0005] This application provides an insulating blanket device suitable for live-line work on 0.4kV low-voltage distribution cabinets, which solves or partially solves the technical problems of cumbersome operation and safety hazards caused by inadequate shielding when performing live-line work on low-voltage distribution cabinets in the prior art. It achieves convenient and quick shielding operation and good protective effect with tight shielding.

[0006] This application provides an insulating blanket device suitable for live-line work on 0.4kV low-voltage switchgear, comprising: an insulating blanket, a rolling shutter mechanism, a top support mechanism, and several clamping mechanisms, wherein... The clamping mechanism includes a clamping adjusting rod, a clamping fixing part, and a lifting ring. The clamping adjusting rod consists of a screw, a nut fixed to the top of the screw, and a first pressure block fixed to the bottom of the screw. The clamping fixing part is an open ring shape, with a sleeve at the top of the open position that is threaded to the screw, and a second pressure block at the bottom of the open position that can mate and fit with the first pressure block. The lifting ring is fixed below the bottom of the clamping fixing part. The clamping adjusting rod rotates to clamp and fix the first pressure block and the second pressure block to the top cabinet of the distribution cabinet after they mate. The roller blind mechanism includes: a shaft frame, a hanging lug fixed to the top of the shaft frame, and a rotating shaft rotatably disposed at the bottom of the shaft frame. The hanging lug passes through the hanging ring, so that the roller blind mechanism is suspended below the clamping mechanism. The insulating blanket is wound around the rotating shaft of the roller blind mechanism, with one end fixed to the rotating shaft and the other end provided with an edge; the edge is provided with a through hole; The top support mechanism includes a support shaft and two top support rods. The support shaft passes through the through hole of the edging and has threaded grooves at both ends. One end of each top support rod has an external thread that mates with the threaded groove. The two top support rods are located at both ends of the support shaft.

[0007] Preferably, the distribution cabinet is a 0.4kV low-voltage distribution cabinet; the insulating blanket is a 0.4kV insulating blanket.

[0008] Preferably, the edging material is the same as the main body material of the insulating blanket, and is fixed to the bottom of the main body of the insulating blanket by adhesive.

[0009] Preferably, there are three clamping mechanisms, which are respectively located at both ends and the middle of the top of the roller shutter mechanism's shaft frame.

[0010] Preferably, the roller blind mechanism is also provided with a torsion spring, which is sleeved on the rotating shaft, so that the insulating blanket can be rewound onto the rotating shaft after being pulled down.

[0011] Preferably, the other end of the top support rod is provided with a top block, which can be abutted and fixed against both sides of the power distribution cabinet.

[0012] Preferably, the threaded grooves at both ends of the support shaft are provided along the axis.

[0013] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages: This application presents an insulating blanket device comprising an insulating blanket, a roller shutter mechanism, a top support mechanism, and several clamping mechanisms. The insulating blanket is wound around the roller shutter mechanism, allowing for quick lowering for shielding and raising for retraction. The roller shutter mechanism is suspended below the clamping mechanisms, which, through adjusting the clamping adjustment rods, quickly and securely fasten the clamping fixing part to the top cabinet of the distribution cabinet. After the insulating blanket is lowered to the set position, the top support mechanism rotates the top support rods at both ends of the support shaft, causing them to extend out of the threaded grooves until the top block abuts and is fixed against both sides of the distribution cabinet, thus completing the shielding protection of the non-construction area of ​​the distribution cabinet. Therefore, this insulating blanket device allows for free adjustment of the shielding height, suitable for low-voltage cabinets of different heights, or for shielding different heights of the same low-voltage cabinet. It provides tight shielding and produces a good shielding effect. Furthermore, the device is simple to operate, with convenient and quick lowering for shielding and raising for retraction, saving time and effort. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 An assembly diagram of an insulating blanket device for live-line work on a 0.4kV low-voltage switchgear, provided in an embodiment of this application, and the low-voltage switchgear itself. Figure 2 A schematic diagram of the structure of an insulating blanket device for live-line work on a 0.4kV low-voltage switchgear, provided in an embodiment of this application; Figure 3 for Figure 2 A schematic diagram of the clamping mechanism; Figure 4 for Figure 2 A partial schematic diagram of the bottom end of the insulating blanket; Figure 5 for Figure 2 A schematic diagram of the central support mechanism.

[0016] (The components represented by the numbers in the diagram are as follows: 1 Insulating blanket, 11 Edge binding, 2 Roller blind mechanism, 3 Clamping mechanism, 31 Clamping adjustment rod, 32 Clamping fixing part, 33 Hanging ring, 4 Top support mechanism, 41 Support shaft, 42 Top support rod) Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0018] See appendix Figure 1 and 2 The insulating blanket device for live-line work on 0.4kV low-voltage distribution cabinets provided in this embodiment includes: an insulating blanket 1, a rolling shutter mechanism 2, a top support mechanism 4, and three clamping mechanisms 3. See appendix Figure 3The clamping mechanism 3 includes a clamping adjusting rod 31, a clamping fixing part 32, and a lifting ring 33. The clamping adjusting rod 31 consists of a screw, a nut fixed to the top of the screw, and a first pressure block fixed to the bottom of the screw. The clamping fixing part 32 is an open ring shape, with a sleeve at the top of the open position that is threaded to the screw, and a second pressure block at the bottom of the open position that can mate and fit with the first pressure block. The lifting ring 33 is fixed below the bottom of the clamping fixing part 32. The clamping adjusting rod 31 rotates, so that the first and second pressure blocks mate and clamp and fix to the top cabinet of the distribution cabinet. There are three clamping mechanisms 3, which are respectively set at both ends and the middle of the top of the roller shutter mechanism 2 shaft frame to ensure the balance and stability of the connection between the roller shutter mechanism 2 and the distribution cabinet.

[0019] See appendix Figure 2 The roller blind mechanism 2 includes: a shaft frame, a hanging lug fixed to the top of the shaft frame, and a rotating shaft rotatably disposed at the bottom of the shaft frame. The hanging lug passes through the hanging ring 33, allowing the roller blind mechanism 2 to be suspended below the clamping mechanism 3. The roller blind mechanism 2 is also equipped with a torsion spring, which is sleeved on the rotating shaft, allowing the insulating blanket 1 to be rewound onto the rotating shaft after being pulled down. The roller blind mechanism 2 with the torsion spring can drive the insulating blanket 1 to stop and rise automatically, facilitating the adjustment of the insulation height of the insulating blanket 1 and the retraction of the insulating blanket 1.

[0020] See appendix Figure 4 The insulating blanket 1 is wound on the rotating shaft of the roller shutter mechanism 2. The insulating blanket 1 is made of insulating material using a seamless process and is used to shield live equipment in non-construction areas inside the low-voltage distribution cabinet. The insulating blanket 1 also includes an edge 11 located at the bottom of the insulating blanket 1. The edge 11 is made of the same material as the insulating blanket 1 and glued to the bottom of the main body of the insulating blanket 1 to form a hole slightly larger than the support shaft 41, so that the support shaft 41 can pass through the edge 11 here.

[0021] See appendix Figure 5 The top support mechanism 4 includes a support shaft 41 and two top support rods 42. The support shaft 41 passes through the through hole of the edging 11 and has threaded grooves at both ends. One end of the top support rod 42 is provided with an external thread that mates with the threaded groove. The two top support rods 42 are located at both ends of the support shaft 41.

[0022] Furthermore, the distribution cabinet is a 0.4kV low-voltage distribution cabinet; the insulating blanket 1 is a 0.4kV insulating blanket. The first and second pressure blocks are made of metal to ensure clamping firmness. The threaded grooves at both ends of the support shaft 41 are set along the axis; the other end of the top support rod 42 is provided with a top block; after the insulating blanket 1 is pulled down to the set position, the top support rods 42 at both ends of the support shaft 41 are rotated so that they extend out of the threaded grooves until they abut against and are fixed to both sides of the distribution cabinet, thereby completing the shielding and protection of the non-construction area of ​​the distribution cabinet by the insulating blanket 1.

[0023] In use, first use the clamping mechanism 3 to clamp the upper surface of the low-voltage distribution cabinet, then pull the support shaft 41 downwards to unfold the insulating blanket 1. After pulling it down to the correct position, adjust the left and right top support rods 42 to press against the left and right end faces of the distribution cabinet and fix the insulating blanket device. When adjusting the insulation shielding height, first adjust the left and right top support rods 42 to retract, adjust the insulating blanket 1 to pull down or rise to shield the new non-construction area, then adjust the left and right top support rods 42 again to press against the left and right end faces of the distribution cabinet and re-fix the insulating blanket device. When retracting, first adjust the top support rods 42 to retract, the roller shutter mechanism 2 rolls up the insulating blanket, and finally release the clamping mechanism 3 to retract the insulating blanket device.

[0024] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An insulating blanket device suitable for live-line work on 0.4kV low-voltage switchgear, characterized in that, include: The components include an insulating blanket, a roller shutter mechanism, a top support mechanism, and several clamping mechanisms. The clamping mechanism includes a clamping adjusting rod, a clamping fixing part, and a lifting ring. The clamping adjusting rod consists of a screw, a nut fixed to the top of the screw, and a first pressure block fixed to the bottom of the screw. The clamping fixing part is an open ring shape, with a sleeve at the top of the open position that is threaded to the screw, and a second pressure block at the bottom of the open position that can mate and fit with the first pressure block. The lifting ring is fixed below the bottom of the clamping fixing part. The clamping adjusting rod rotates to clamp and fix the first pressure block and the second pressure block to the top cabinet of the distribution cabinet after they mate. The roller blind mechanism includes: a shaft frame, a hanging lug fixed to the top of the shaft frame, and a rotating shaft rotatably disposed at the bottom of the shaft frame. The hanging lug passes through the hanging ring, so that the roller blind mechanism is suspended below the clamping mechanism. The insulating blanket is wound around the rotating shaft of the roller blind mechanism, with one end fixed to the rotating shaft and the other end provided with an edge; the edge is provided with a through hole; The top support mechanism includes a support shaft and two top support rods. The support shaft passes through the through hole of the edging and has threaded grooves at both ends. One end of each top support rod has an external thread that mates with the threaded groove. The two top support rods are located at both ends of the support shaft.

2. The insulating blanket device as described in claim 1, suitable for live-line work on 0.4kV low-voltage switchgear, is characterized in that... The distribution cabinet is a 0.4kV low-voltage distribution cabinet; the insulating blanket is a 0.4kV insulating blanket.

3. The insulating blanket device as described in claim 1, suitable for live-line work on 0.4kV low-voltage switchgear, is characterized in that... The edging material is the same as the main body material of the insulating blanket, and it is fixed to the bottom of the main body of the insulating blanket by adhesive.

4. The insulating blanket device as described in claim 1, suitable for live-line work on 0.4kV low-voltage switchgear, is characterized in that... The number of clamping mechanisms is three, which are respectively set at both ends and the middle of the top of the roller blind mechanism's shaft frame.

5. The insulating blanket device as described in claim 1, suitable for live-line work on 0.4kV low-voltage switchgear, is characterized in that... The roller blind mechanism is also equipped with a torsion spring, which is sleeved on the rotating shaft, so that the insulating blanket can be rewound onto the rotating shaft after being pulled down.

6. The insulating blanket device as described in claim 1, suitable for live-line work on 0.4kV low-voltage switchgear, is characterized in that... The other end of the top support rod is provided with a top block, which can be abutted and fixed against both sides of the power distribution cabinet.

7. The insulating blanket device as described in claim 1, suitable for live-line work on 0.4kV low-voltage switchgear, is characterized in that... The threaded grooves at both ends of the support shaft are provided along the axis.

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