A power distribution switch with high safety

Abstract

The utility model relates to the technical field of power distribution switches, and specifically to a power distribution switch with high safety, comprising a power distribution switch board, an air switch device is fixedly arranged at the front end of the power distribution switch board, a knife switch is rotatably connected to the air switch device through a rotating shaft, the knife switch is in a closed state when it is tilted downward, if there is a problem with the circuit, the knife switch will drive the rotating shaft to rotate to an inclined upward state, and the circuit is disconnected, a telescope is fixedly arranged at the front end of the power distribution switch board, the telescope is dynamically connected to a telescopic rod, and the telescopic rod is fixedly connected to a limit plate; a connecting column is rotatably connected to one end of the knife switch away from the rotating shaft, and a limit block is fixedly connected to the left and right end faces of the connecting column, when the knife switch trips, the limit block is on the upper side of the limit plate, at this time, the telescope is started to drive the telescopic rod to extend, and the limit plate can be driven to move to the lower side of the limit block, at this time, the knife switch cannot be closed, and the closing situation is avoided when the circuit is repaired.

Description

Technical Field

[0001] The utility model relates to the technical field of power distribution switches, in particular to a power distribution switch with high safety. Background Art

[0002] Power distribution is the link in the power system that is directly connected to the user and distributes electric energy to the user. The power distribution system consists of a distribution substation, high-voltage distribution lines, distribution transformers, low-voltage distribution lines and corresponding control and protection equipment, and the distribution switch is an important tool for controlling the circuit to open or break. The distribution switch is set in the distribution box. When it is set up in existing homes or other places, when tripping or circuit failure occurs, if an uninformed person closes the switch when checking the circuit condition, it will cause danger;

[0003] Therefore, it is necessary to design a power distribution switch with high safety to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of the utility model is to provide a power distribution switch with high safety, so as to solve the problem that the uninformed person closing the switch may cause danger, thereby solving the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A highly safe power distribution switch, comprising a power distribution switch board, an air switch device is fixedly arranged at the front end of the power distribution switch board, a knife switch is rotatably connected to the inside of the air switch device through a rotating shaft, the knife switch is in a closed state when it is tilted downward, if there is a problem with the circuit, the knife switch will drive the rotating shaft to rotate to a tilted upward state to complete the circuit disconnection, a telescope is fixedly arranged at the front end of the power distribution switch board, the telescope is dynamically connected to a telescopic rod, and the telescopic rod is fixedly connected to a limit plate;

[0007] The knife switch is rotatably connected to one end away from the rotating shaft with a connecting column, and the left and right end faces of the connecting column are respectively fixedly connected to a limit block. When the knife switch trips, the limit block is on the upper side of the limit plate. At this time, starting the telescopic device drives the telescopic rod to extend, which can drive the limit plate to move to the lower side of the limit block. At this time, the knife switch cannot be closed, avoiding the closing situation when repairing the circuit.

[0008] As a preferred solution of the utility model, the left and right end surfaces of the rotating shaft are respectively fixedly connected with a rotating disk, and the rotating disk is fixedly connected with a rotating pin.

[0009] As a preferred solution of the utility model, the front end surface of the distribution switchboard is fixedly connected with two groups of two shielding plates that are left-right symmetrical about the rotating pin, and the distance between the two shielding plates is greater than the thickness of the rotating pin.

[0010] As a preferred solution of the utility model, the front end of the distribution switchboard is provided with a first switch which can control the telescopic device to start and drive the telescopic rod to extend. When the knife switch trips, the rotating disk and the rotating pin rotate, thereby contacting and pressing the telescopic device, thereby starting the telescopic device.

[0011] As a preferred solution of the utility model, the front end of the distribution switch board is provided with a second switch capable of activating the telescopic device to drive the telescopic rod to retract, and the second switch needs to be activated by a key.

[0012] As a preferred solution of the utility model, the four corners of the power distribution switch board are fixedly connected with mounting ears, and the mounting ears can fix the power distribution switch board to a flat installation surface.

[0013] Beneficial effect: The utility model can drive the rotating disk and the rotating pin fixedly connected to the rotating shaft to rotate when the knife trips, and then contact the first switch through the rotating pin when the knife trips, and then start the telescopic device after the trip to drive the telescopic rod to extend, and then drive the limit plate to move to the lower side of the limit block connected to the knife, limit the knife and the limit block, and avoid the situation of closing the switch when repairing the circuit;

[0014] By setting up the second switch, the telescopic device can be started to drive the telescopic rod to retract and reset when safety is confirmed, and then the switch can be closed. The shielding plate can shield and protect the first switch to avoid accidental touch. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an overall three-dimensional diagram of a power distribution switch with high safety according to the utility model;

[0016] Figure 2 This is a three-dimensional diagram of a power distribution switch with high safety from the right side of the utility model;

[0017] Figure 3 This is a three-dimensional top view of a power distribution switch with high safety according to the utility model;

[0018] Figure 4 This is a structural schematic diagram of a shielding plate portion of a power distribution switch with high safety in the utility model;

[0019] Figure 5 This is a structural schematic diagram of the expansion joint part of a power distribution switch with high safety in the utility model;

[0020] In the figure: 101, distribution switch board; 102, mounting ear; 103, air switch; 104, knife switch; 105, connecting column; 106, limit block; 107, rotating shaft; 108, rotating disk; 109, rotating pin; 111, shielding plate; 112, first switch; 113, telescopic device; 114, telescopic rod; 115, limit plate; 116, second switch. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0022] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0024] See also Figure 1-5 , the utility model provides a technical solution:

[0025] A highly safe power distribution switch, comprising a power distribution switch board 101, wherein an air switch 103 is fixedly arranged at the front end of the power distribution switch board 101, wherein a knife switch 104 is rotatably connected to the air switch 103 via a rotating shaft 107, wherein the knife switch 104 is in a closed state when it is tilted downward, and if there is a problem with the circuit, the knife switch 104 will drive the rotating shaft 107 to rotate to a tilted upward state to disconnect the circuit, wherein a telescopic device 113 is fixedly arranged at the front end of the power distribution switch board 101, wherein the telescopic device 113 is dynamically connected to a telescopic rod 114, and wherein the telescopic rod 114 is fixedly connected to a limit plate 115;

[0026] The knife switch 104 is rotatably connected to one end away from the rotating shaft 107 with a connecting column 105, and the left and right end faces of the connecting column 105 are respectively fixedly connected with a limit block 106. When the knife switch 104 trips, the limit block 106 is on the upper side of the limit plate 115. At this time, starting the telescopic device 113 drives the telescopic rod 114 to extend, which can drive the limit plate 115 to move to the lower side of the limit block 106. At this time, the knife switch 104 cannot be closed, so as to avoid closing when repairing the circuit.

[0027] Preferably, the left and right end surfaces of the rotating shaft 107 are respectively fixedly connected with a rotating disk 108 , and the rotating disk 108 is fixedly connected with a rotating pin 109 .

[0028] Preferably, two groups of two shielding plates 111 are fixedly connected to the front end surface of the distribution switchboard 101 and are symmetrical about the rotating pin 109 , and the distance between the two shielding plates 111 is greater than the thickness of the rotating pin 109 .

[0029] Preferably, the front end of the distribution switchboard 101 is provided with a first switch 112 which can control the telescopic device 113 to start and extend the telescopic rod 114. When the knife switch 104 trips, the rotating disk 108 and the rotating pin 109 rotate, thereby contacting and pressing the 122, thereby starting the telescopic device 113.

[0030] Preferably, a second switch 116 capable of activating the telescopic device 113 to drive the telescopic rod 114 to retract is provided at the front end of the power distribution switchboard 101, and the second switch 116 needs to be activated by a key.

[0031] Preferably, the four corners of the power distribution switch board 101 are fixedly connected with mounting ears 102, and the mounting ears 102 can fix the power distribution switch board 101 to a flat surface for installation.

[0032] In summary, the power distribution switchboard 101 is fixed on the use plane through the mounting ears 102, and then the air switch 103 is connected to the circuit. At this time, if the circuit current fluctuates greatly, the switch blade 104 and the rotating shaft 107 rotate to trip and disconnect the circuit;

[0033] When the knife switch 104 and the rotating shaft 107 rotate, the rotating disk 108 and the rotating pin 109 are driven to rotate, and then the rotating pin 109 contacts the first switch 112, and the telescopic device 113 is started to drive the telescopic rod 114 to extend, and then the limit plate 115 is driven to move forward to the lower side of the limit block 106 to limit the limit block 106; at this time, the knife switch 104 cannot be closed, so as to avoid the situation that the maintenance circuit is closed;

[0034] When in use, the baffle plate 111 can block the first switch 112 to avoid accidental triggering of the retractor 113. If the switch needs to be closed, the second switch 116 is controlled by a key to start the retractor 113 to drive the retractable rod 114 to reposition the limit plate 115. At this time, the knife switch 104 can be manually rotated to complete the closing operation.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A power distribution switch with high safety, comprising a power distribution switch board (101), characterized in that: An air switch (103) is fixedly provided at the front end of the power distribution switchboard (101), and a knife switch (104) is rotatably connected to the air switch (103) via a rotating shaft (107). The knife switch (104) is in a closed state when it is tilted downward. If a circuit problem occurs, the knife switch (104) will drive the rotating shaft (107) to rotate to an inclined upward state to disconnect the circuit. A telescopic device (113) is fixedly provided at the front end of the power distribution switchboard (101), and the telescopic device (113) is dynamically connected to a telescopic rod (114), and the telescopic rod (114) is fixedly connected to a limit plate (115); One end of the knife blade (104) away from the rotating shaft (107) is rotatably connected to a connecting column (105), and the left and right end surfaces of the connecting column (105) are respectively fixedly connected to a limit block (106).

2. A power distribution switch with high safety according to claim 1, characterized in that: The left and right end surfaces of the rotating shaft (107) are respectively fixedly connected with a rotating disk (108), and the rotating disk (108) is fixedly connected with a rotating pin (109).

3. A power distribution switch with high safety according to claim 2, characterized in that: The front end surface of the power distribution switchboard (101) is fixedly connected with two groups of two shielding plates (111) that are symmetrical about the rotating pin (109), and the distance between the two shielding plates (111) is greater than the thickness of the rotating pin (109).

4. A power distribution switch with high safety according to claim 3, characterized in that: A first switch (112) capable of controlling the telescopic device (113) to start driving the telescopic rod (114) to extend is provided at the front end of the power distribution switchboard (101).

5. A power distribution switch with high safety according to claim 4, characterized in that: A second switch (116) capable of activating the telescopic device (113) to drive the telescopic rod (114) to retract is provided at the front end of the power distribution switchboard (101), and the second switch (116) needs to be activated by a key.

6. A highly safe power distribution switch according to claim 5, characterized in that: The four corners of the power distribution switchboard (101) are fixedly connected with mounting ears (102).

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