High-voltage isolation switch protection device

Abstract

The utility model relates to the technical field of high-voltage isolating switches, in particular to a high-voltage isolating switch protection device, which comprises a base, a first insulating support column and a second insulating support column, and the first insulating support column and the second insulating support column are mounted at the top of the base. A conductive contact is fixedly arranged at the top end of the first insulating supporting column, a connecting piece is hinged to the end, close to the conductive contact, of the conductive joint, and a temperature sensing triggering assembly is arranged on the side, close to the connecting piece, of the conductive joint. Compared with the prior art, the conductive joint has the advantages that through the arrangement of the connecting piece, the temperature sensing triggering assembly, the gear and the second magnetic block, after the temperature of the conductive joint rises due to voltage increase, the rack automatically slides downwards under the action of the gravity of the rack, and then the connecting piece is separated from the conductive contact; therefore, after the voltage is increased and the temperature of the conductive joint and the conductive contact rises, the connecting piece can be automatically separated from the conductive contact, and the connecting piece is prevented from being adhered to the conductive contact.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage isolating switches, in particular to a high-voltage isolating switch protection device. Background Art

[0002] A high-voltage isolating switch is a device used in power systems. It is mainly used to isolate circuits when equipment is undergoing maintenance or troubleshooting. It can cut off the connection between lines, equipment, transformers, etc. and the power supply, leaving the equipment in a power-free state, thereby ensuring the safety of maintenance personnel.

[0003] A protection device for a high-voltage disconnector is disclosed in Chinese patent CN213815945U. The protection device for a high-voltage disconnector uses an adjustment mechanism to cooperate with an insulating connecting rod to synchronously drive a conductive joint to extend an adjustment protective sleeve when controlling the rotation of a conductive joint and realizing the closing of a conductive contact, thereby realizing the connection between the conductive joint and the conductive contact.

[0004] However, compared with the existing technology in the related field, when the equipment is powered by a large amount of electricity, the conductive contacts and conductive joints will generate high temperatures, which will cause the ends of the metal conductive joints to adhere to the metal conductive contacts. Then, when disconnection is required, it is inconvenient for the staff to separate the conductive joints from the conductive contacts, and the equipment cannot be put into an unpowered state in time, affecting the construction progress of the staff. Utility Model Content

[0005] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0006] The purpose of the utility model is to overcome the shortcomings of the prior art, solve the problems mentioned in the background technology, and provide a high-voltage isolating switch protection device.

[0007] The purpose of the utility model is achieved through the following technical solutions: A high-voltage disconnector protection device comprises a base and a first insulating support and a second insulating support mounted on the top of the base, the top of the second insulating support is hingedly connected with a conductive joint, and the top of the first insulating support is fixedly provided with a conductive contact;

[0008] A connecting piece is hingedly connected to one end of the conductive joint close to the conductive contact, and a temperature sensing trigger component is provided on one side of the conductive joint close to the connecting piece;

[0009] The temperature sensing trigger component includes a rack that is slidably connected to the conductive joint, a gear meshing with the rack is fixedly provided on one side of the connecting plate close to the rack, a containing shell is fixedly provided on the side of the bottom end of the rack, a first magnetic block is slidably connected to the interior of the containing shell, and a second magnetic block that cooperates with the first magnetic block is inlaid at the position of the conductive joint corresponding to the first magnetic block.

[0010] Preferably, the conductive joint is connected to the base via an insulating connecting rod.

[0011] By adopting the above technical solution, it is introduced how the conductive joint is connected with the base.

[0012] Preferably, the conductive joint is provided with a sliding groove matched with the rack at the position of the rack, and the gear is rotatably connected to the conductive joint via a pin shaft.

[0013] By adopting the above technical solution, it is introduced how to hinge the connecting piece with the conductive joint, so that when the voltage increases and the temperature of the conductive joint and the conductive contact rises, the connecting piece can automatically separate from the conductive contact.

[0014] Preferably, a through hole matching the first magnetic block is provided at a position of the rack corresponding to the first magnetic block.

[0015] By adopting the above technical solution, the first magnetic block can slide inside the through hole and inside the accommodating shell.

[0016] Preferably, a surface of the first magnetic block close to the accommodating shell is rotatably connected to a screw rod, and the screw rod is threadedly connected to the accommodating shell.

[0017] By adopting the above technical solution, the distance between the first magnetic block and the second magnetic block can be adjusted by using a screw rod, thereby adjusting the attraction force between the first magnetic block and the second magnetic block.

[0018] Preferably, a notch is provided on a side surface of the containing shell, and a plurality of scale lines are provided on the containing shell near the notch, and the plurality of scale lines are distributed on the containing shell at equal intervals.

[0019] By adopting the above technical solution, the scale lines can be used to facilitate the staff to accurately control the position of the first magnetic block.

[0020] Compared with the prior art, the utility model has the following advantages:

[0021] The high-voltage isolating switch protection device, by providing a connecting piece, a temperature-sensing trigger component, a gear and a second magnetic block, achieves the goal that when the temperature of the conductive joint rises due to the increase in voltage, the rack will automatically slide downward under the action of its own gravity, and then the gear will drive the connecting piece to flip, so that the connecting piece and the conductive contact are separated, thereby achieving the effect that when the voltage increases and the temperature of the conductive joint and the conductive contact rises, the connecting piece can be automatically separated from the conductive contact, effectively preventing the connecting piece from sticking to the conductive contact due to high temperature, and facilitating the staff to separate the conductive joint from the conductive contact during later inspection and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 It is a structural schematic diagram of the utility model when the connecting piece is electrically connected to the conductive contact from a first viewing angle;

[0024] Figure 2 It is a structural schematic diagram of the utility model when the connecting piece and the conductive contact are disconnected from each other from the first perspective;

[0025] Figure 3 It is a structural schematic diagram of the utility model when the connecting piece is electrically connected to the conductive contact from a second viewing angle;

[0026] Figure 4 For this utility model Figure 3 A schematic diagram of the structure enlargement at the center A;

[0027] Figure 5 It is a structural schematic diagram of the utility model from a second viewing angle when the connecting piece and the conductive contact are disconnected;

[0028] Figure 6 For this utility model Figure 5 A schematic diagram of the structure enlarged at B in the middle;

[0029] Figure 7 It is a structural schematic diagram of the conductive joint of the utility model;

[0030] Figure 8 This is a schematic diagram of the structure of the connecting piece of the utility model;

[0031] Fig. 9 This is a schematic diagram of the structure of the temperature sensing trigger component of the utility model;

[0032] Fig.10 This is a schematic diagram of the disassembled structure of the temperature sensing trigger component of the utility model.

[0033] In the figure: 1. base; 2. first insulating support; 3. second insulating support; 4. conductive joint; 401. slide groove; 402. pin shaft; 5. conductive contact; 6. connecting piece; 601. gear; 7. temperature sensing trigger component; 701. rack; 7011. through hole; 702. housing shell; 7021. notch; 7022. scale line; 703. first magnetic block; 704. screw; 8. second magnetic block; 9. insulating connecting rod. DETAILED DESCRIPTION

[0034] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0036] Additional aspects and advantages of the present invention will be further described below in conjunction with the accompanying drawings, and some will become apparent from the following description or be learned through practice of the present invention.

[0037] like Figure 1-10 As shown, a high-voltage disconnector protection device comprises a base 1 and a first insulating support 2 and a second insulating support 3 installed on the top of the base 1, the top of the second insulating support 3 is hingedly connected with a conductive joint 4, the top of the first insulating support 2 is fixedly provided with a conductive contact 5, and the conductive joint 4 is connected to the base 1 through an insulating connecting rod 9. The base 1, the first insulating support 2, the second insulating support 3, the conductive joint 4, the conductive contact 5 and the insulating connecting rod 9 in the utility model are all well-known technologies in the technical field, so their specific structures, specific connection methods and working principles are not described in detail;

[0038] One end of the conductive joint 4 close to the conductive contact 5 is hingedly connected with a connecting piece 6, and a temperature-sensing trigger component 7 is provided on one side of the conductive joint 4 close to the connecting piece 6. The temperature-sensing trigger component 7 includes a rack 701 slidably connected to the conductive joint 4, and a sliding groove 401 adapted to the conductive joint 4 is provided at the position of the rack 701. A gear 601 meshing with the rack is fixedly provided on one side of the connecting piece 6 close to the rack 701, and the gear 601 is rotatably connected to the conductive joint 4 through a pin 402. A housing shell 702 is fixedly provided on the side of the bottom end of the rack 701, and a notch 7021 is provided on the side of the housing shell 702. A plurality of scale lines 7022 are provided at a position of the housing shell 702 close to the notch 7021, and the plurality of scale lines 7022 are evenly spaced on the housing shell 702. A first magnetic block 703 is slidably connected to the interior of the housing shell 702, and a through hole 7011 adapted to the first magnetic block 703 is provided on the position of the rack 701 corresponding to the first magnetic block 703. , the first magnetic block 703 is rotatably connected to a side of the accommodating shell 702, and the screw 704 is threadedly connected to the accommodating shell 702. The position of the conductive joint 4 corresponding to the first magnetic block 703 is inlaid with a second magnetic block 8 that matches the first magnetic block 703. The rack 701 can be positioned by utilizing the mutual attraction of the magnetic force between the first magnetic block 703 and the second magnetic block 8. When the temperature of the conductive joint 4 increases due to the increase in voltage, the magnetic force between the first magnetic block 703 and the second magnetic block 8 will decrease (when the temperature of the magnet increases, the more intense the molecular movement of the magnet, the more intense the disordered collision between the molecules, thus breaking the orderly balance of the molecules and weakening the magnetism a lot), and then the rack 701 will slide downward under the action of its own gravity, so that the rack 701 will prompt the gear 601 to rotate, and then the gear 601 will drive the connecting piece 6 to flip, so that the connecting piece 6 is separated from the conductive contact 5, thereby isolating the circuit.

[0039] The working process of the utility model is as follows:

[0040] S1. When in use, the distance between the first magnetic block 703 and the second magnetic block 8 can be adjusted by rotating the screw 704, so as to adjust the attraction between the first magnetic block 703 and the second magnetic block 8, and the scale line 7022 can be used to facilitate the staff to accurately control the position of the first magnetic block 703;

[0041] S2. When the temperature of the conductive joint 4 rises due to the increase of voltage, the magnetic force between the first magnetic block 703 and the second magnetic block 8 will decrease (when the temperature of the magnet increases, the more intense the molecular motion of the magnet, the more intense the disordered collision between the molecules, thus breaking the orderly balance of the molecules and weakening the magnetism a lot), and then the rack 701 will slide downward under the action of its own gravity;

[0042] S3. After the rack 701 slides downward, the rack 701 will cause the gear 601 to rotate, and then the gear 601 will drive the connecting piece 6 to flip, so that the connecting piece 6 is separated from the conductive contact 5, thereby isolating the circuit.

[0043] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A high voltage isolating switch protection device, characterized in that: It comprises a base (1), and a first insulating support (2) and a second insulating support (3) mounted on the top of the base (1); the top of the second insulating support (3) is hingedly connected to a conductive joint (4); and the top of the first insulating support (2) is fixedly provided with a conductive contact (5); One end of the conductive joint (4) close to the conductive contact (5) is hingedly connected to a connecting piece (6), and a temperature-sensing trigger component (7) is provided on one side of the conductive joint (4) close to the connecting piece (6); The temperature-sensing trigger component (7) comprises a rack (701) slidably connected to the conductive joint (4); a gear (601) meshing with the rack (701) is fixedly provided on one side of the connecting piece (6) close to the rack (701); a housing shell (702) is fixedly provided on the side of the bottom end of the rack (701); a first magnetic block (703) is slidably connected inside the housing shell (702); and a second magnetic block (8) matching with the first magnetic block (703) is embedded in the conductive joint (4) at a position corresponding to the first magnetic block (703).

2. A high voltage isolating switch protection device according to claim 1, characterized in that: The conductive joint (4) is connected to the base (1) via an insulating connecting rod (9).

3. A high voltage isolating switch protection device according to claim 1, characterized in that: The conductive joint (4) is provided with a sliding groove (401) adapted thereto at the position of the rack (701), and the gear (601) is rotationally connected to the conductive joint (4) via a pin shaft (402).

4. A high voltage isolating switch protection device according to claim 1, characterized in that: The rack (701) is provided with a through hole (7011) matching the first magnetic block (703) at a position corresponding to the first magnetic block (703).

5. A high voltage isolating switch protection device according to claim 1, characterized in that: A screw rod (704) is rotatably connected to a surface of the first magnetic block (703) close to the accommodating shell (702), and the screw rod (704) is threadedly connected to the accommodating shell (702).

6. A high voltage isolating switch protection device according to claim 1, characterized in that: A notch (7021) is provided on the side of the containing shell (702), and a plurality of scale lines (7022) are provided on the containing shell (702) near the notch (7021), and the plurality of scale lines (7022) are distributed on the containing shell (702) at equal intervals.

Images