CN220526837U - Arc extinguishing type short-circuit protection device - Google Patents
Arc extinguishing type short-circuit protection device Download PDFInfo
- Publication number
- CN220526837U CN220526837U CN202321769352.4U CN202321769352U CN220526837U CN 220526837 U CN220526837 U CN 220526837U CN 202321769352 U CN202321769352 U CN 202321769352U CN 220526837 U CN220526837 U CN 220526837U
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- plate
- limiting
- protector body
- rotary rod
- bottom plate
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- 230000001012 protector Effects 0.000 claims abstract description 42
- 238000009434 installation Methods 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 3
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 230000006378 damage Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005520 electrodynamics Effects 0.000 description 1
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Abstract
The utility model discloses an arc extinguishing type short-circuit protection device which comprises a protector body and a mounting shell, wherein positioning grooves are formed in two sides of the upper part of the protector body, the mounting shell comprises a back plate, a bottom plate and a pair of side plates, the pair of side plates are respectively arranged on two sides of the back plate, the bottom plate is arranged at the lower end of the back plate, the protector body is arranged in a containing cavity formed by encircling the back plate, the bottom plate and the side plates, a plurality of mounting holes are formed in the back plate, a rotary rod is connected between the upper parts of the two side plates in a rotating mode, and limiting assemblies matched with the positioning grooves are respectively arranged at two ends of the rotary rod. According to the utility model, through the arrangement of the limiting component and the limiting groove, the protector body can be conveniently installed on the working plane, and when the protector is disassembled, the protector body can be easily disassembled by only rotating the rotary rod to separate the limiting component from the protector body without tools, so that the protector is quite convenient.
Description
Technical Field
The utility model relates to the technical field of short-circuit protection, in particular to an arc extinguishing type short-circuit protection device.
Background
A short circuit fault is one of the serious faults that occur more frequently in a circuit. Since the short-circuit current can be several times or even tens times of the normal working current, excessive heat must be generated, resulting in damage of insulating parts, burning of equipment, and even fire. The strong short-circuit current also generates a large electrodynamic force, which may lead to mechanical destruction of the device. Therefore, protective measures must be quickly taken once a short-circuit fault occurs, so as to prevent the accident from being further expanded. A common protection measure is to add protection devices to the circuit. In order to avoid arcing sparks when the protection device is switched off, arc-extinguishing short-circuit protection devices are generally used. However, the existing arc extinguishing short-circuit protection device is generally directly installed on the working plane through a plurality of screws, and after the installation, if the arc extinguishing short-circuit protection device needs to be overhauled or replaced later, the arc extinguishing short-circuit protection device can be detached by means of tools, so that the arc extinguishing short-circuit protection device is very troublesome.
Disclosure of Invention
The utility model aims to solve the problems and provides an arc-extinguishing type short-circuit protection device convenient to disassemble.
The utility model adopts the following technical scheme:
the utility model provides an arc extinguishing formula short-circuit protection device, includes protector body and installation shell, the upper portion both sides of protector body are equipped with the constant head tank, the installation shell includes backplate, bottom plate and a pair of curb plate, a pair of the both sides of backplate are located respectively to the curb plate, the lower extreme of backplate is located to the bottom plate, and the protector body is arranged in the holding chamber that forms by backplate, bottom plate and curb plate enclosing, be equipped with a plurality of mounting holes on the backplate, rotate between two curb plate upper portions and be connected with a dwang, the both ends of dwang are equipped with respectively with constant head tank complex spacing subassembly.
As a preferable technical scheme of the utility model, one end of the rotary rod is connected to one side plate through rotation of the rotary cylinder, the other end of the rotary rod penetrates through the other side plate and is provided with a knob, two ends of the rotary rod are respectively provided with external threads with opposite rotation directions, the limiting component comprises a thread bush, a connecting plate and a limiting column, the thread bush is in threaded connection with the external threads of the rotary rod, the connecting plate is connected to the thread bush, and the limiting column is arranged on the side surface of the connecting plate close to the positioning groove and corresponds to the positioning groove.
As a preferable technical scheme of the utility model, the bottom plate is provided with a U-shaped opening, the lower part of the side plate is provided with a limiting plate, the side plate and the bottom plate are enclosed to form a limiting groove, and two sides of the lower part of the protector body are provided with limiting blocks matched with the limiting groove.
The beneficial effects of the utility model are as follows:
according to the utility model, through the arrangement of the limiting component and the limiting groove, the protector body can be conveniently installed on the working plane, and when the protector is disassembled, the protector body can be easily disassembled by only rotating the rotary rod to separate the limiting component from the protector body without tools, so that the protector is quite convenient.
Drawings
FIG. 1 is a schematic diagram of a protector body;
FIG. 2 is a schematic view of a mounting frame structure;
FIG. 3 is a schematic view of the mounting structure of the present utility model.
The symbols in the drawings illustrate:
1: protector body, 2: mounting shell, 201: back plate, 202: a base plate, 203: side plate, 204: mounting holes, 205: limiting plate, 3: positioning groove, 4: rotating rod, 5: knob, 6: screw sleeve, 7: connecting plate, 8: limit post, 9: limit groove, 10: and a limiting block.
Detailed Description
The utility model will now be described in further detail with reference to the accompanying drawings.
In the embodiments, it should be understood that the orientation or positional relationship indicated by the terms "middle," "upper," "lower," "top," "bottom," "right," "left," "above," "below," "back," "front," "middle," "outside," "inside," etc. are based on the orientation or positional relationship shown in the drawings, merely for convenience of description of the present embodiments, and are not intended to indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present embodiments.
As shown in fig. 1 to 3, an arc extinguishing type short-circuit protection device comprises a protector body 1 and a mounting shell 2, positioning grooves 3 are formed in two sides of the upper portion of the protector body 1, the mounting shell 2 comprises a backboard 201, a bottom plate 202 and a pair of side plates 203, the pair of side plates 203 are respectively arranged on two sides of the backboard 201, the bottom plate 202 is arranged at the lower end of the backboard 201, the protector body 1 is arranged in a containing cavity formed by encircling the backboard 201, the bottom plate 202 and the side plates 203, a plurality of mounting holes 204 are formed in the backboard 201, the mounting shell 2 is fixed on a working plane through the mounting holes 204, the protector body 1 is arranged in the mounting shell 2, a rotary rod 4 is connected between the upper portions of the two side plates 203 in a rotating mode, limiting components matched with the positioning grooves 3 are respectively arranged at two ends of the rotary rod 4, and the protector body 1 is limited in the mounting shell 2 through the cooperation of the limiting components and the positioning grooves 3.
Further, one end of the rotary rod 4 is rotatably connected to one of the side plates 203 through the rotary cylinder, the other end of the rotary rod 4 penetrates through the other side plate 203 and is provided with a knob 5, the knob 5 is arranged outside the installation shell 2, two ends of the rotary rod 4 are respectively provided with external threads with opposite rotation directions, the limiting assembly comprises a thread sleeve 6, a connecting plate 7 and a limiting column 8, the thread sleeve 6 is in threaded connection with the external threads of the rotary rod 4, the connecting plate 7 is connected to the thread sleeve 6, and the limiting column 8 is arranged on the side surface of the connecting plate 7, close to the positioning groove 3, and corresponds to the positioning groove 3 in position. When the protector is used, the rotary rod 4 is rotated, at the moment, the threaded sleeves 6 at the two ends of the rotary rod 4 are close to or far away from each other, so that the limit post 8 is driven to be inserted into or far away from the positioning groove 3, and when the limit post 8 is inserted into the positioning groove 3, the protector body 1 is positioned, and when the limit post 8 is far away from the positioning groove 3, the protector body 1 can be detached from the mounting shell 2, so that the protector is quite convenient.
Further, a U-shaped opening is formed in the bottom plate 202, the protector body 1 is conveniently connected from the lower end of the protector body through the opening, a limiting plate 205 is arranged at the lower portion of the side plate 203, the limiting plate 205, the side plate 203 and the bottom plate 202 enclose to form a limiting groove 9, and limiting blocks 10 matched with the limiting groove 9 are arranged on two sides of the lower portion of the protector body 1. In this way, the limiting groove 9 plays a limiting role in the longitudinal direction on the protector body 1, and the limiting assembly plays a limiting role in the transverse direction on the protector body 1, thereby completely limiting the protector body 1 in the mounting case 2.
The installation principle of the utility model is as follows: firstly, the installation shell 2 is fixed on a working plane through a screw, then the rotary rod 4 is rotated to enable limit components at two ends of the rotary rod to be mutually separated to a maximum distance, then the limit block 10 at the lower part of the protector body 1 is inserted into the corresponding limit groove 3 and the limit post 8 along the limit groove 9, finally the rotary rod 4 is rotated to enable the limit post 8 to be inserted into the corresponding limit groove 3, the effect of clamping and fixing the protector body 1 is achieved, and therefore when the installation is completed, only the rotary rod 4 is required to be rotated to enable the limit post 8 to be separated from the limit groove, and then the protector body 1 is pulled out along the limit groove 9, so that the protector is quite convenient.
Finally, it should be noted that: these embodiments are merely for illustrating the present utility model and do not limit the scope of the present utility model. Further, various other changes and modifications will be apparent to those skilled in the art from the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present utility model.
Claims (3)
1. Arc extinguishing formula short-circuit protection device, including protector body (1) and installation shell (2), its characterized in that: the utility model discloses a protector for the automobile, including protector body (1), including backplate (201), bottom plate (202) and a pair of curb plate (203), installation shell (2) are equipped with constant head tank (3) in upper portion both sides, a pair of curb plate (203) locate the both sides of backplate (201) respectively, the lower extreme of backplate (201) is located to bottom plate (202), and protector body (1) are located by backplate (201), bottom plate (202) and curb plate (203) enclose the holding chamber that forms, be equipped with a plurality of mounting holes (204) on backplate (201), rotate between two curb plate (203) upper portions and be connected with a dwang (4), the both ends of dwang (4) are equipped with respectively with constant head tank (3) complex spacing subassembly.
2. An arc extinguishing short circuit protection device according to claim 1, characterized in that: one end of the rotary rod (4) is connected to one side plate (203) through rotation of the rotary cylinder, the other end of the rotary rod (4) penetrates through the other side plate (203) and is provided with a knob (5), two ends of the rotary rod (4) are respectively provided with external threads opposite in rotation direction, the limiting assembly comprises a thread bush (6), a connecting plate (7) and a limiting column (8), the thread bush (6) is in threaded connection with the external threads of the rotary rod (4), the connecting plate (7) is connected to the thread bush (6), and the limiting column (8) is arranged on the side face of the connecting plate (7) close to the positioning groove (3) and corresponds to the position of the positioning groove (3).
3. An arc extinguishing short circuit protection device according to claim 1, characterized in that: the novel protective device is characterized in that a U-shaped opening is formed in the bottom plate (202), a limiting plate (205) is arranged at the lower portion of the side plate (203), the limiting plate (205), the side plate (203) and the bottom plate (202) are enclosed to form a limiting groove (9), and limiting blocks (10) matched with the limiting groove (9) are arranged on two sides of the lower portion of the protective device body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321769352.4U CN220526837U (en) | 2023-07-07 | 2023-07-07 | Arc extinguishing type short-circuit protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321769352.4U CN220526837U (en) | 2023-07-07 | 2023-07-07 | Arc extinguishing type short-circuit protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220526837U true CN220526837U (en) | 2024-02-23 |
Family
ID=89923366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321769352.4U Active CN220526837U (en) | 2023-07-07 | 2023-07-07 | Arc extinguishing type short-circuit protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220526837U (en) |
-
2023
- 2023-07-07 CN CN202321769352.4U patent/CN220526837U/en active Active
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