CN210866010U - Flame-proof type change-over switch structure - Google Patents
Flame-proof type change-over switch structure Download PDFInfo
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- CN210866010U CN210866010U CN201921861823.8U CN201921861823U CN210866010U CN 210866010 U CN210866010 U CN 210866010U CN 201921861823 U CN201921861823 U CN 201921861823U CN 210866010 U CN210866010 U CN 210866010U
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- over switch
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Abstract
The utility model provides a flame-proof type change-over switch structure, which comprises a change-over switch handle, a mechanism shaft, a mechanism seat, an upper fixed plate, a lower fixed plate and a box cover; the mechanism seat is of a three-section type cylindrical structure, the top is a shaft body part, the middle is a seat body part, the lower part is a welding part, the diameter of the shaft body part is larger than that of the seat body part, and the diameter of the seat body part is larger than that of the welding part; the top of the shaft body part is provided with a circular groove, and the bottom of the circular groove is provided with a mounting hole; the mechanism shaft is arranged in the mounting hole; the upper fixing plate is welded and fixed with the welding part of the mechanism seat; the lower fixing plate is fixedly connected with the upper fixing plate; and the lower fixing plate is fixed with a common change-over switch. A flame-proof type change over switch structure be applicable to steel sheet welded forming explosion-proof electrical equipment, can select the ordinary omnipotent change over switch of more brand models, ordinary omnipotent change over switch's original structure does not change, rational in infrastructure, the manufacturing of being convenient for, convenient to use.
Description
Technical Field
The utility model belongs to explosion-proof electrical equipment field of flame-proof type especially relates to a flame-proof type change over switch structure.
Background
At present, a universal change-over switch used on explosion-proof electrical equipment is mainly formed by combining an explosion-proof universal change-over switch mechanism and a common universal change-over switch, and further meets the requirements of explosion-proof performance and electrical performance of the explosion-proof electrical equipment. The existing explosion-proof mechanism of the universal change-over switch has fewer structural types, one explosion-proof mechanism corresponds to a common universal change-over switch with one brand and model, and the requirement that explosion-proof electrical equipment selects more common universal change-over switches with different brands and models cannot be met.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model discloses aim at overcoming the defect that exists among the above-mentioned prior art, provide a flame-proof type change over switch structure.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
a flame-proof type change-over switch structure comprises a change-over switch handle, a mechanism shaft, a mechanism seat, an upper fixing plate, a lower fixing plate and a box cover;
the mechanism seat is of a three-section type cylindrical structure, the top is a shaft body part, the middle is a seat body part, the lower part is a welding part, the diameter of the shaft body part is larger than that of the seat body part, and the diameter of the seat body part is larger than that of the welding part; the top of the shaft body part is provided with a circular groove, and the bottom of the circular groove is provided with a mounting hole; the mechanism shaft is arranged in the mounting hole;
the box cover is provided with an opening corresponding to the seat body of the mechanism seat, the diameter of the opening is smaller than that of the shaft body part of the mechanism seat, and the mechanism seat penetrates through the box cover and is welded and fixed with the box cover;
the change-over switch handle is fixedly connected with the top of the mechanism shaft; the upper fixing plate is welded and fixed with the welding part of the mechanism seat;
the lower fixing plate is fixedly connected with the upper fixing plate; and the lower fixing plate is fixed with a common change-over switch.
Furthermore, the mechanism shaft is of a three-section type cylindrical structure, the top cylinder is a first connecting piece, the middle cylinder is a rotating piece, and the lower cylinder is a second connecting piece; the diameter of the rotating piece corresponds to the diameter of the mounting hole, and the diameter of the second connecting piece is larger than that of the mounting hole.
Further, a sleeve is arranged between the upper fixing plate and the lower fixing plate; the upper fixing plate is connected with the lower fixing plate by adopting but not limited to a long screw;
an elastic pad and a flat pad are also arranged between the long screw and the lower fixing plate; the long screw sequentially penetrates through the elastic pad, the flat pad, the lower fixing plate and the sleeve from bottom to top and is in threaded connection with the upper fixing plate;
the height of the sleeve is greater than that of a second connecting piece of the mechanism shaft;
the bottom of the second connecting piece of the mechanism shaft is provided with a mounting groove; the lower fixing plate is provided with an opening, and a rotating shaft of the common change-over switch penetrates through the opening to extend to the mounting groove and is fixedly connected with the mounting groove.
Furthermore, an annular groove I is formed in the upper portion of a rotating piece of the mechanism shaft, a shaft elastic check ring is arranged in the annular groove I, and the diameter of the shaft elastic check ring is larger than that of the mounting hole.
Furthermore, an annular groove II is further arranged below the annular groove I of the rotating part of the mechanism shaft, and a sealing ring is arranged in the annular groove II.
Furthermore, a sunk screw hole is formed in the change-over switch handle, and the change-over switch handle is fixedly connected with the first connecting piece of the mechanism shaft through a screw; the bottom of the change-over switch handle is also provided with a groove corresponding to the shaft body part of the mechanism seat.
Compared with the prior art, the utility model discloses following advantage has:
the explosion-proof universal change-over switch mechanism is suitable for steel plate welding forming explosion-proof electrical equipment, can select more common universal change-over switches of brands and models, has no change in the original structure of the common universal change-over switches, accords with national standards, and is reasonable in structure, convenient to manufacture, convenient to use, safe and reliable.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
FIG. 1 is a schematic diagram of a flameproof change-over switch according to an embodiment of the present invention.
Description of reference numerals:
1. a transfer switch handle; 2. a screw; 3. a mechanism shaft; 4. a circlip for the shaft; 5. a seal ring; 6. a box cover; 7. a mechanism seat; 8. an upper fixing plate; 9. a long screw; 10. a sleeve; 11. a lower fixing plate; 12. flattening the cushion; 13. a spring pad; 14. a common transfer switch.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being 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. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, 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 by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1, an explosion-proof type change-over switch structure comprises a change-over switch handle 1, a mechanism shaft 3, a mechanism seat 7, an upper fixing plate 8, a lower fixing plate 11 and a box cover 6;
the mechanism seat 7 is of a three-section type cylindrical structure, the top is a shaft body part, the middle is a seat body part, the lower part is a welding part, the diameter of the shaft body part is larger than that of the seat body part, and the diameter of the seat body part is larger than that of the welding part; the top of the shaft body part is provided with a circular groove, and the bottom of the circular groove is provided with a mounting hole; the mechanism shaft 3 is arranged in the mounting hole;
the box cover 6 is provided with an opening corresponding to the base body of the mechanism base 7, the diameter of the opening is smaller than the diameter of the shaft body part of the mechanism base 7, and the mechanism base 7 penetrates through the box cover 6 and is welded and fixed with the box cover 6;
the change-over switch handle 1 is fixedly connected with the top of the mechanism shaft 3; the upper fixing plate 8 is welded and fixed with the welding part of the mechanism seat 7;
the lower fixing plate 11 is fixedly connected with the upper fixing plate 8; the lower fixing plate 11 is fixed to a common transfer switch 14.
The mechanism shaft 3 is of a three-section type cylindrical structure, a top cylinder is a first connecting piece, a middle cylinder is a rotating piece, and a lower cylinder is a second connecting piece; the diameter of the rotating piece corresponds to the diameter of the mounting hole, and the diameter of the second connecting piece is larger than that of the mounting hole.
A sleeve 10 is arranged between the upper fixing plate 8 and the lower fixing plate 11; the upper fixing plate 8 is connected with the lower fixing plate 11 by using but not limited to a long screw 9;
an elastic pad 13 and a flat pad 12 are also arranged between the long screw 9 and the lower fixing plate 11; the long screw 9 sequentially penetrates through the elastic pad 13, the flat pad 12, the lower fixing plate 11 and the sleeve 10 from bottom to top and then is in threaded connection with the upper fixing plate 8;
the height of the sleeve 10 is greater than that of a second connecting piece of the mechanism shaft 3;
the bottom of the second connecting piece of the mechanism shaft 3 is provided with a mounting groove; the lower fixing plate 11 is provided with an opening, and a rotating shaft of the common change-over switch 14 passes through the opening to extend to the mounting groove and be fixedly connected with the mounting groove.
The upper portion of a rotating piece of the mechanism shaft 3 is provided with a first annular groove, a first elastic check ring 4 for the shaft is arranged in the first annular groove, and the diameter of the first elastic check ring 4 for the shaft is larger than that of the mounting hole, so that the mechanism shaft 3 is prevented from loosening.
And a second annular groove is also arranged below the first annular groove of the rotating part of the mechanism shaft 3, and a sealing ring 5 is arranged in the second annular groove, so that the dustproof and waterproof requirements are met.
The change-over switch handle 1 is provided with a sunken screw hole, and the change-over switch handle 1 is fixedly connected with a first connecting piece of the mechanism shaft 3 through a screw 2; the bottom of the change-over switch handle 1 is also provided with a groove corresponding to the shaft body part of the mechanism seat 7, so that the change-over switch handle is attached to the box cover 1 and the box cover 6 is more attractive.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. An explosion-proof change-over switch structure which characterized in that: comprises a change-over switch handle (1), a mechanism shaft (3), a mechanism seat (7), an upper fixing plate (8), a lower fixing plate (11) and a box cover (6);
the mechanism seat (7) is of a three-section type cylindrical structure, the top is a shaft body part, the middle is a seat body part, the lower part is a welding part, the diameter of the shaft body part is larger than that of the seat body part, and the diameter of the seat body part is larger than that of the welding part; the top of the shaft body part is provided with a circular groove, and the bottom of the circular groove is provided with a mounting hole; the mechanism shaft (3) is arranged in the mounting hole;
the box cover (6) is provided with an opening corresponding to the base body of the mechanism base (7), the diameter of the opening is smaller than the diameter of the shaft body part of the mechanism base (7), and the mechanism base (7) penetrates through the box cover (6) and is welded and fixed with the box cover (6);
the change-over switch handle (1) is fixedly connected with the top of the mechanism shaft (3); the upper fixing plate (8) is welded and fixed with the welding part of the mechanism seat (7);
the lower fixing plate (11) is fixedly connected with the upper fixing plate (8); the lower fixing plate (11) is fixed with a common change-over switch (14).
2. The flameproof change-over switch structure of claim 1, characterized in that: the mechanism shaft (3) is of a three-section type cylindrical structure, a top cylinder is a first connecting piece, a middle cylinder is a rotating piece, and a lower cylinder is a second connecting piece; the diameter of the rotating piece corresponds to the diameter of the mounting hole, and the diameter of the second connecting piece is larger than that of the mounting hole.
3. The flameproof change-over switch structure of claim 1, characterized in that: a sleeve (10) is arranged between the upper fixing plate (8) and the lower fixing plate (11); the upper fixing plate (8) is connected with the lower fixing plate (11) by adopting but not limited to a long screw (9);
an elastic pad (13) and a flat pad (12) are also arranged between the long screw (9) and the lower fixing plate (11); the long screw (9) sequentially penetrates through the elastic pad (13), the flat pad (12), the lower fixing plate (11) and the sleeve (10) from bottom to top and then is in threaded connection with the upper fixing plate (8);
the height of the sleeve (10) is greater than that of a second connecting piece of the mechanism shaft (3);
the bottom of the second connecting piece of the mechanism shaft (3) is provided with a mounting groove; the lower fixing plate (11) is provided with an opening, and a rotating shaft of the common change-over switch (14) penetrates through the opening to extend to the mounting groove and be fixedly connected with the mounting groove.
4. The flameproof transfer switch structure of claim 3, characterized in that: the upper portion of a rotating part of the mechanism shaft (3) is provided with a first annular groove, a first elastic check ring (4) for the shaft is arranged in the first annular groove, and the diameter of the first elastic check ring (4) for the shaft is larger than that of the mounting hole.
5. The flameproof transfer switch structure of claim 4, characterized in that: and a second annular groove is also arranged below the first annular groove of the rotating part of the mechanism shaft (3), and a sealing ring (5) is arranged in the second annular groove.
6. The flameproof transfer switch structure of claim 5, characterized in that: the change-over switch handle (1) is provided with a sunken screw hole, and the change-over switch handle (1) is fixedly connected with a first connecting piece of the mechanism shaft (3) through a screw (2); the bottom of the change-over switch handle (1) is also provided with a groove corresponding to the shaft body part of the mechanism seat (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921861823.8U CN210866010U (en) | 2019-10-30 | 2019-10-30 | Flame-proof type change-over switch structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921861823.8U CN210866010U (en) | 2019-10-30 | 2019-10-30 | Flame-proof type change-over switch structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210866010U true CN210866010U (en) | 2020-06-26 |
Family
ID=71288881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921861823.8U Active CN210866010U (en) | 2019-10-30 | 2019-10-30 | Flame-proof type change-over switch structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210866010U (en) |
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2019
- 2019-10-30 CN CN201921861823.8U patent/CN210866010U/en active Active
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