CN218730642U - Improved piston pneumatic load switch - Google Patents
Improved piston pneumatic load switch Download PDFInfo
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- CN218730642U CN218730642U CN202222965836.8U CN202222965836U CN218730642U CN 218730642 U CN218730642 U CN 218730642U CN 202222965836 U CN202222965836 U CN 202222965836U CN 218730642 U CN218730642 U CN 218730642U
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- air
- blowing
- air blowing
- load switch
- piston
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Abstract
The utility model discloses an improved generation piston pneumatics formula load switch belongs to the load switch field, including switch bracket, combined floodgate position and inside arrangement in the section of thick bamboo of blowing that has the piston, the section of thick bamboo top of blowing is connected with the gas supply bottle through one-way admission valve, and blows a section of thick bamboo and combined floodgate position and through the passageway intercommunication of blowing, is equipped with compression impulse structure in the passageway of blowing, and the section of thick bamboo of blowing is through the blasting formula of compression impulse structure realization electric arc when separating brake to combined floodgate position. The utility model discloses a structure of blowing to current arc extinguishing improves for the tradition is carried out the mode that blows directly by piston compressed gas and is become earlier to gas compression, blows through the blasting formula behind the critical intercommunication of the passageway of blowing, thereby improves the impulse of blowing, reaches the effect of high-efficient arc extinguishing.
Description
Technical Field
The utility model relates to a load switch field, more specifically say, relate to an improved generation piston pneumatics formula load switch.
Background
The load switch can be divided into a solid gas production type, a compressed air type, an oil immersion type, a vacuum type, a compressed gas type and the like. The compressed air type load switch utilizes compressed air of the piston in the switching-on and switching-off process to blow out electric arcs, and is lower in cost and wider in use compared with a vacuum arc extinguishing mode.
The existing pneumatic load switch blows out electric arcs generated between the movable joint and the static joint only through piston compressed air during opening, the arc extinguishing capacity depends on the magnitude of piston compression impulse, and a driving mechanism for driving the movable joint and the static joint to close and open a brake is easy to generate mechanical fatigue in a long-time use process, so that the impulse of the piston is insufficient, and the arc extinguishing efficiency is limited. In view of this, we propose an improved piston pneumatic load switch.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved
An object of the utility model is to provide an improved generation piston pneumatics formula load switch to solve the problem that proposes among the above-mentioned background art.
2. Technical scheme
The utility model provides an improved generation piston pneumatics formula load switch, includes switch bracket, combined floodgate position point and inside arrangement in the section of thick bamboo of blowing that has the piston, the section of thick bamboo top of blowing is connected with the gas supply bottle through one-way admission valve, just the section of thick bamboo of blowing passes through the gas blowing channel intercommunication with combined floodgate position point, be equipped with compression impulse structure in the gas blowing channel, the section of thick bamboo of blowing is blown through the blasting formula of compression impulse structure realization electric arc when separating brake to combined floodgate position point.
Preferably, the gas blowing cylinder and the gas supplementing cylinder are both filled with SF6 gas.
Preferably, the compression impulse structure comprises a sliding block arranged at the exhaust end of the air blowing channel, the sliding block is connected with the inner wall of the air blowing channel through a spring, an air cavity is formed in the sliding block, an air inlet of the air cavity is communicated with the air inlet end of the air blowing channel, and an air outlet of the air cavity is communicated with the exhaust end of the air blowing channel in a contact manner.
Preferably, the air blowing channel is in a Z-shaped structure.
Preferably, the top surface of the sliding block is provided with an inclined surface, and the direction of the inclined surface is opposite to the gas flowing direction in the blowing channel.
3. Advantageous effects
Compared with the prior art, the utility model has the advantages of:
the utility model discloses a structure of blowing to current arc extinguishing improves for the tradition is carried out the mode that blows directly by piston compressed gas and is become earlier to gas compression, blows through the blasting formula behind the critical intercommunication of the passageway of blowing, thereby improves the impulse of blowing, reaches the effect of high-efficient arc extinguishing.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged view of the detailed structure of the present invention;
the reference numbers in the figures illustrate: 1. a switch bracket; 2. a switching-on site; 3. an air blower; 4. a one-way intake valve; 5. a gas replenishing bottle; 6. an air blowing channel; 7. compressing the impulse structure; 701. a slider; 702. a spring; 703. an air cavity; 704. a bevel.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-2, the present invention provides a technical solution:
the utility model provides an improved generation piston pneumatics formula load switch, includes switch bracket 1, combined floodgate position 2 and inside arranges in the section of thick bamboo 3 that blows that has the piston, its characterized in that: the top of the air blowing cylinder 3 is connected with an air supplementing cylinder 5 through a one-way air inlet valve 4, the air blowing cylinder 3 is communicated with the closing site 2 through an air blowing channel 6, a compression impulse structure 7 is arranged in the air blowing channel 6, and the air blowing cylinder 3 realizes blasting air blowing of electric arcs when the closing site 2 is opened through the compression impulse structure 7. The utility model discloses a structure of blowing to current arc extinguishing improves for the tradition is carried out the mode that blows directly by piston compressed gas and is become earlier to gas compression, blows through the blasting formula after 6 critical intercommunications of gas blowing passageway, thereby improves the impulse of blowing, reaches the effect of high-efficient arc extinguishing.
Specifically, the blowing cylinder 3 and the air supply bottle 5 are filled with SF6 gas. The gas supplementing bottle 5 is favorable for one-way gas supplementing in the blowing cylinder 3, the labor intensity of manual gas supplementing is reduced, and the device can be reused.
Further, the compression impulse structure 7 comprises a sliding block 701 arranged at the exhaust end of the air blowing channel 6, the sliding block 701 is connected with the inner wall of the air blowing channel 6 through a spring 702, an air cavity 703 is formed in the sliding block 701, the air inlet of the air cavity 703 is communicated with the air inlet end of the air blowing channel 6, and the air outlet of the air cavity 703 is communicated with the exhaust end of the air blowing channel 6 in a contact manner.
It is worth mentioning that the blowing channel 6 is of a Z-shaped configuration. The bent blowing channel 6 is beneficial to improving the expansion rate of air resistance and improving the impulse of blasting blowing.
It should be noted that the top surface of the slider 701 is provided with an inclined surface 704, and the direction of the inclined surface 704 is opposite to the gas flowing direction in the blowing channel 6. The design of the inclined plane 704 enables the piston to compress air, the air extrudes the inclined plane 704 of the sliding block 701 to enable the sliding block 701 to move downwards to play a role of guiding air flow until the air outlet of the air cavity 703 is in contact communication with the air outlet end of the air blowing channel 6, so that the air is instantly rushed out to complete blasting type arc blowing, and the principle of blasting type air blowing is that when the piston compresses the air at the air inlet of the air cavity 703, the air outlet of the air cavity 703 is continuously increased along with the downward movement of the sliding block 701, and until the compressed air is broken timely to form air exhaust in a very short time when the air outlet of the air cavity 703 is communicated with the air outlet end of the air blowing channel 6.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides an improved generation piston pneumatics formula load switch, includes switch bracket (1), combined floodgate position (2) and inside arrangement in the section of thick bamboo of blowing (3) that have the piston, its characterized in that: the top of the air blowing cylinder (3) is connected with an air supplementing cylinder (5) through a one-way air inlet valve (4), the air blowing cylinder (3) is communicated with the closing locus (2) through an air blowing channel (6), a compression impulse structure (7) is arranged in the air blowing channel (6), and the air blowing cylinder (3) realizes blasting air blowing of electric arcs when the closing locus (2) is opened through the compression impulse structure (7).
2. The improved piston-gas pressure load switch according to claim 1, wherein: SF6 gas is filled in the gas blowing cylinder (3) and the gas supplementing bottle (5).
3. The improved piston-gas pressure load switch according to claim 1, wherein: the compression impulse structure (7) comprises a sliding block (701) arranged at the exhaust end of the air blowing channel (6), the sliding block (701) is connected with the inner wall of the air blowing channel (6) through a spring (702), an air cavity (703) is formed in the sliding block (701), the air inlet of the air cavity (703) is communicated with the air inlet end of the air blowing channel (6), and the air outlet of the air cavity (703) is communicated with the exhaust end of the air blowing channel (6) in a contact mode.
4. The improved piston-gas pressure load switch according to claim 3, wherein: the air blowing channel (6) is of a Z-shaped structure.
5. The improved piston-gas pressure load switch according to claim 3, wherein: the top surface of the sliding block (701) is provided with an inclined surface (704), and the direction of the inclined surface (704) is opposite to the gas flowing direction in the blowing channel (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222965836.8U CN218730642U (en) | 2022-11-07 | 2022-11-07 | Improved piston pneumatic load switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222965836.8U CN218730642U (en) | 2022-11-07 | 2022-11-07 | Improved piston pneumatic load switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218730642U true CN218730642U (en) | 2023-03-24 |
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ID=85610855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222965836.8U Active CN218730642U (en) | 2022-11-07 | 2022-11-07 | Improved piston pneumatic load switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218730642U (en) |
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2022
- 2022-11-07 CN CN202222965836.8U patent/CN218730642U/en active Active
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