Ring main unit
By using insulating cylinder fixing devices of clamping plates and springs in the ring net cabinet, the problems of insulating cylinders are not firmly fixed and poorly stable, and more stable connections and higher insulation performance are achieved.
Patent Information
- Application Number
- CN202421658673.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-07-15
AI Technical Summary
The fixing method of the existing ring grid cabinet insulating cylinder is easy to loosen, the connection is not firm, and the stability between each insulating cylinder is poor, affecting the insulation performance.
An insulating cylinder fixing device is used for clamping plates and springs. One end of the insulating cylinder is fixed to the mounting plate through clamping plates, and the other end is reinforced by clamping springs to replace traditional screws. The clamping plates and springs are made of rubber to improve connection stability.
It realizes reliable fixing of the insulating barrel, has a more stable connection, is easy to disassemble, and has improved overall insulation performance, which reduces the risk of shaking and falling off, and enhances the stability and consistency between the insulating barrels.
Smart Images
Figure CN223167854U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a ring main unit, in particular to a fixing device for an insulating cylinder of a ring main unit. Background Art
[0002] A ring main unit is a high-voltage switchgear mainly used for ring network power supply. It is usually installed in a steel plate metal cabinet or made into a prefabricated sectionalized ring network power supply unit. The insulating cylinder of the ring main unit plays a role of isolation and protection in the ring main unit and is an important component of the ring main unit. The following problems exist in the actual installation process of the existing insulating cylinders of the ring main unit: 1. The insulating cylinders basically adopt screw fixation. This fixation method has few limiting structures, and the screws are prone to rust, resulting in insecure connections and easy loosening and shaking, thereby deteriorating the insulation performance and increasing the risk of electrical accidents; 2. There is no connection between the insulating cylinders of each ring main unit, and their consistency and stability are poor, and the insulation ability is limited. Therefore, the fixing structure of the existing insulating cylinders of the ring main unit is improved. Content of the Utility Model
[0003] To solve the above problems, the technical problem to be solved by the utility model is to provide a ring main unit with reliable installation of insulating cylinders.
[0004] The technical solution adopted by the ring main unit of the utility model: It includes an insulating cylinder mounting plate and insulating cylinders arranged at equal intervals on the insulating cylinder mounting plate. It is characterized by further including an insulating cylinder fixing device. The insulating cylinder fixing device includes a clamping plate and a snap spring. The insulating cylinder includes an insulating cylinder base and an insulating cylinder docking part. An insulating cylinder docking hole is arranged in the insulating cylinder docking part. A base positioning groove for positioning the clamping plate is arranged on the insulating cylinder base. A base bayonet and a base clamping block are respectively arranged above and below the base positioning groove at the bottom of the insulating cylinder base. An insulating cylinder docking part clamping groove for clamping the snap spring is arranged on the outer wall of the insulating cylinder docking part. An installation plate through hole for the insulating cylinder docking part to pass through is arranged on the insulating cylinder mounting plate. An installation plate clamping part is arranged below the installation plate through hole on the front surface of the insulating cylinder mounting plate. Installation plate bayonets corresponding to the base clamping blocks are arranged at intervals on the installation plate clamping part. The clamping plate is placed between the insulating cylinder mounting plate and the insulating cylinder base. A clamping plate through hole and a clamping plate insertion block corresponding to the base bayonet are arranged on the clamping plate. The insulating cylinder docking part passes through the clamping plate through hole and the installation plate through hole in sequence and is fixed by the snap spring on the back surface of the insulating cylinder mounting plate.
[0005] The insulating tube fixing device also includes a retaining spring receiving block and an outer cover placed on the back of the insulating tube mounting plate. The retaining spring receiving block is provided with a retaining spring mounting groove for installing and positioning the retaining spring. The retaining spring mounting groove is provided with a receiving block penetration hole for the insulating tube docking portion to penetrate. The outer cover is arranged outside the retaining spring receiving block. The left and right ends of the outer cover are provided with outer cover plug-in parts. The insulating tube mounting plate is provided with a first mounting plate socket. The outer cover plug-in part passes through the first mounting plate socket and then bends to fit the front of the insulating tube mounting plate.
[0006] The insulating cylinder mounting plate is provided with a mounting plate paving opening at the mounting plate clamping portion, and the mounting plate clamping portion and the insulating cylinder mounting plate are integrally stamped.
[0007] The size of the retaining spring receiving block is the same as that of the clamping plate. The left and right ends of the retaining spring receiving block are provided with receiving block positioning protrusions. The insulating tube mounting plate is provided with a second mounting plate socket. The left and right ends of the clamping plate are provided with clamping plate positioning recesses. The receiving block positioning protrusion passes through the second mounting plate socket and docks with the clamping plate positioning recess.
[0008] The clamping spring receiving block and the clamping plate are both made of rubber.
[0009] The outer cover plug-in portion is provided with an outer cover reinforcement hole, and the insulation cylinder mounting plate is provided with a mounting plate waist-shaped hole corresponding to the outer cover reinforcement hole outside the first socket of the mounting plate.
[0010] The advantages of the ring network cabinet of this utility model are: one end of the insulating cylinder is fixed to the insulating cylinder mounting plate by a clamping method and the other end is reinforced by a clamping spring, replacing the traditional screw installation method. The connection structure is more stable and reliable, the installation and disassembly are easier, and the clamping is firm and not easy to shake or fall off; the clamping plate and the clamping spring receiving block are integrally connected to the insulating cylinder and are all made of rubber material, so that the three insulating cylinders are connected into a whole, and the overall insulation performance is further improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.
[0012] Figure 1 This is a schematic diagram of the internal structure of the ring network cabinet of the utility model;
[0013] Figure 2 This is an exploded view of the insulating cylinder fixing device of the utility model;
[0014] Figure 3 This is a structural diagram of the insulating cylinder of the utility model;
[0015] Figure 4 This is a structural diagram of the insulating tube mounting plate of the utility model;
[0016] Figure 5 is a structural schematic diagram of the clamping plate of the present utility model;
[0017] Figure 6 is a structural schematic diagram of the snap ring receiving block of the present utility model;
[0018] Figure 7 is a structural schematic diagram of the outer cover of the present utility model. Specific embodiments
[0019] As Figure 1-7 shown, the ring main unit related to the present utility model includes an insulating cylinder mounting plate 1, insulating cylinders 2 arranged at equal intervals on the insulating cylinder mounting plate 1, and an insulating cylinder fixing device 3. The insulating cylinder fixing device 3 includes a clamping plate 5 and a snap ring 6. The insulating cylinder 2 includes an insulating cylinder base 10 and an insulating cylinder docking part 11. An insulating cylinder docking hole 12 is arranged in the insulating cylinder docking part 11. A base positioning groove 14 for positioning the clamping plate 5 is arranged on the insulating cylinder base 10. A base bayonet 15 and a base clamping block 16 are respectively arranged above and below the base positioning groove 14 at the bottom of the insulating cylinder base 10. An insulating cylinder docking part clamping groove 17 for clamping the snap ring 6 is arranged on the outer wall of the insulating cylinder docking part 11. An installation plate through hole 18 for the insulating cylinder docking part 11 to pass through is arranged on the insulating cylinder mounting plate 1. An installation plate clamping part 19 is arranged below the installation plate through hole 18 on the front surface of the insulating cylinder mounting plate 1. Installation plate bayonets 23 corresponding to the base clamping blocks 16 are arranged at intervals on the installation plate clamping part 19. The clamping plate 5 is placed between the insulating cylinder mounting plate 1 and the insulating cylinder base 10. A clamping plate through hole 21 and a clamping plate insertion block 22 corresponding to the base bayonet 15 are arranged on the clamping plate 5. The insulating cylinder docking part 11 passes through the clamping plate through hole 21 and the installation plate through hole 18 in sequence and is fixed on the back surface of the insulating cylinder mounting plate 1 by the snap ring 6. One end of the insulating cylinder 2 is fixed on the insulating cylinder mounting plate 1 by a clamping method and the other end is reinforced by the snap ring 6, replacing the traditional screw installation method. The connection structure is more stable and reliable, the installation and disassembly are simpler, and the clamping is firm and not easy to shake and fall off.
[0020] The insulating cylinder fixing device 3 further includes a snap ring receiving block 7 and an outer cover 8 placed on the back surface of the insulating cylinder mounting plate 1. A snap ring installation groove 25 for installing and positioning the snap ring 6 is arranged in the snap ring receiving block 7. A receiving block through hole 26 for the insulating cylinder docking part 11 to pass through is arranged on the snap ring installation groove 25. The outer cover 8 covers the outside of the snap ring receiving block 7. Outer cover insertion parts 27 are arranged at the left and right ends of the outer cover 8. An installation plate first socket 28 is arranged on the insulating cylinder mounting plate 1. The outer cover insertion parts 27 pass through the installation plate first socket 28 and then bend to fit with the front surface of the insulating cylinder mounting plate 1.
[0021] The insulating cylinder mounting plate 1 is provided with a mounting plate relief opening 29 at the mounting plate clamping portion 19. The mounting plate clamping portion 19 and the insulating cylinder mounting plate 1 are integrally formed by stamping, which is simple in processing and improves the assembly efficiency.
[0022] The retaining ring receiving block 7 is the same size as the clamping plate 5. The left and right ends of the retaining ring receiving block 7 are provided with receiving block positioning protrusions 30. The insulating cylinder mounting plate 1 is provided with a second mounting plate socket 31. The left and right ends of the clamping plate 5 are provided with clamping plate positioning notches 32. The receiving block positioning protrusions 30 pass through the second mounting plate socket 31 and are docked with the clamping plate positioning notches 32, strengthening the connection tightness and integrity, and improving the overall insulation performance.
[0023] Both the retaining ring receiving block 7 and the clamping plate 5 are made of rubber material, so that the three insulating cylinders are connected into a whole, and the overall insulation performance is further improved.
[0024] The outer cover plugging portion 27 is provided with an outer cover reinforcing hole 34. The insulating cylinder mounting plate 1 is provided with a mounting plate kidney-shaped hole 35 corresponding to the outer cover reinforcing hole 34 outside the first mounting plate socket 28, further improving the connection tightness and preventing falling off and displacement.
[0025] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention are all included in the protection scope of the present invention.
Claims
1. A ring main unit, comprising an insulating cylinder mounting plate (1) and insulating cylinders (2) arranged at equal intervals on the insulating cylinder mounting plate (1), characterized in that: It further includes an insulating cylinder fixing device (3), the insulating cylinder fixing device (3) includes a clamping plate (5) and a snap ring (6), the insulating cylinder (2) includes an insulating cylinder base (10) and an insulating cylinder docking part (11), an insulating cylinder docking hole (12) is provided in the insulating cylinder docking part (11), a base positioning groove (14) for positioning the clamping plate (5) is provided on the insulating cylinder base (10), a base bayonet (15) and a base clamping block (16) are respectively provided above and below the base positioning groove (14) at the bottom of the insulating cylinder base (10), an insulating cylinder docking part clamping groove (17) for clamping the snap ring (6) is provided on the outer wall of the insulating cylinder docking part (11), an installation plate through hole (18) for the insulating cylinder docking part (11) to pass through is provided on the insulating cylinder installation plate (1), an installation plate clamping part (19) is provided below the installation plate through hole (18) on the front surface of the insulating cylinder installation plate (1), installation plate bayonets (23) corresponding to the base clamping blocks (16) are provided at intervals on the installation plate clamping part (19), the clamping plate (5) is placed between the insulating cylinder installation plate (1) and the insulating cylinder base (10), a clamping plate through hole (21) and a clamping plate insertion block (22) corresponding to the base bayonet (15) are provided on the clamping plate (5), and the insulating cylinder docking part (11) passes through the clamping plate through hole (21) and the installation plate through hole (18) in sequence and is fixed on the back surface of the insulating cylinder installation plate (1) by the snap ring (6).
2. The ring main unit according to claim 1, characterized in that: The insulating cylinder fixing device (3) further includes a snap ring receiving block (7) and an outer cover (8) placed on the back surface of the insulating cylinder installation plate (1), a snap ring installation groove (25) for installing and positioning the snap ring (6) is provided in the snap ring receiving block (7), a receiving block through hole (26) for the insulating cylinder docking part (11) to pass through is provided on the snap ring installation groove (25), the outer cover (8) covers the outside of the snap ring receiving block (7), outer cover insertion parts (27) are provided at the left and right ends of the outer cover (8), an installation plate first socket (28) is provided on the insulating cylinder installation plate (1), and after the outer cover insertion parts (27) pass through the installation plate first socket (28), they are bent to fit the front surface of the insulating cylinder installation plate (1).
3. The ring main unit according to claim 1, characterized in that: The insulating cylinder installation plate (1) is provided with an installation plate relief opening (29) at the installation plate clamping part (19), and the installation plate clamping part (19) and the insulating cylinder installation plate (1) are integrally formed by stamping.
4. The ring main unit according to claim 2, characterized in that: The size of the snap ring receiving block (7) is the same as that of the clamping plate (5), receiving block positioning protrusions (30) are provided at the left and right ends of the snap ring receiving block (7), an installation plate second socket (31) is provided on the insulating cylinder installation plate (1), clamping plate positioning notches (32) are provided at the left and right ends of the clamping plate (5), and after the receiving block positioning protrusions (30) pass through the installation plate second socket (31), they are docked with the clamping plate positioning notches (32).
5. The ring main unit according to claim 2, characterized in that: Both the snap ring receiving block (7) and the clamping plate (5) are made of rubber material.
6. The ring main unit according to claim 2, characterized in that: The outer cover insertion part (27) is provided with an outer cover reinforcement hole (34), and the insulating cylinder mounting plate (1) is provided with a mounting plate waist-shaped hole (35) corresponding to the outer cover reinforcement hole (34) outside the first socket (28) of the mounting plate.