CN210866015U - Explosion-proof knob structure - Google Patents
Explosion-proof knob structure Download PDFInfo
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- CN210866015U CN210866015U CN201921847587.4U CN201921847587U CN210866015U CN 210866015 U CN210866015 U CN 210866015U CN 201921847587 U CN201921847587 U CN 201921847587U CN 210866015 U CN210866015 U CN 210866015U
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- fixing plate
- knob
- lower fixing
- proof
- shaft
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Abstract
The utility model provides a flame-proof knob structure, which comprises a knob handle, a mechanism shaft, a mechanism seat, an upper fixed plate and a lower fixed plate; the knob handle is sleeved outside the mechanism shaft; the middle part of the mechanism seat is provided with a round opening, and the mechanism shaft is arranged in the opening of the mechanism seat; the mechanism seat is welded on the box cover; the upper fixing plate is welded at the bottom of the mechanism seat; a sleeve is arranged between the upper fixing plate and the lower fixing plate; the lower fixing plate is connected with the upper fixing plate through a long screw; the long screw sequentially penetrates through the lower fixing plate, the sleeve and the upper fixing plate from bottom to top to be in threaded connection with the lower fixing plate, and the lower fixing plate is used for mounting a common knob. A flame-proof type knob structure be applicable to steel sheet welded forming explosion-proof electrical equipment, rational in infrastructure, the manufacturing of being convenient for, convenient to use, safe and reliable.
Description
Technical Field
The utility model belongs to explosion-proof electrical equipment field of flame-proof type especially relates to a flame-proof type knob structure.
Background
At present, a knob used on explosion-proof electrical equipment is mainly formed by combining an explosion-proof knob mechanism and a common knob, 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 knob has fewer structural types, one explosion-proof mechanism corresponds to a common knob of one brand model, and the requirement that explosion-proof electrical equipment selects more common knobs of the brand model cannot be met.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at overcoming the defect that exists among the above-mentioned prior art, provides a flame-proof type knob structure.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
a flame-proof knob structure comprises a knob handle, a mechanism shaft, a mechanism seat, an upper fixing plate and a lower fixing plate;
the knob handle is sleeved outside the mechanism shaft; the middle part of the mechanism seat is provided with a round opening, and the mechanism shaft is arranged in the opening of the mechanism seat; the mechanism seat is welded on the box cover;
the upper fixing plate is welded at the bottom of the mechanism seat; a sleeve is arranged between the upper fixing plate and the lower fixing plate; the lower fixing plate is connected with the upper fixing plate through a long screw; the long screw sequentially penetrates through the lower fixing plate and the sleeve from bottom to top to be in threaded connection with the upper fixing plate;
the lower fixing plate is used for mounting a common knob.
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 circular opening of the mechanism seat, and the diameter of the second connecting piece is larger than that of the circular opening.
Furthermore, the upper part of the rotating part is provided with a first annular groove, and a sealing ring is arranged in the first annular groove;
the upper part of the first annular groove is also provided with a second annular groove, and a shaft elastic check ring is arranged in the second annular groove and used for preventing the mechanism shaft from loosening.
Furthermore, the knob handle is provided with a sunken screw hole and is fixed on the first connecting piece at the upper part of the mechanism shaft through a screw.
Furthermore, the lower fixing plate is provided with a mounting hole, and the diameter of the mounting hole corresponds to the diameter of the middle rotating shaft of the common knob and is smaller than the diameter of the top cap of the common knob; and a groove is formed in the bottom of the second connecting piece, a convex block is arranged on the upper part of the common knob top cap, and the convex block is fixedly connected with the groove.
Furthermore, an elastic pad and a flat pad are arranged between the screw and the lower fixing plate.
Compared with the prior art, the utility model discloses following advantage has:
the explosion-proof knob mechanism is suitable for steel plate welding forming explosion-proof electrical equipment, can select more common knobs of brands and models, does not change the original structure of the common knobs, accords with the national standard, 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 the embodiment of the utility model provides a flame-proof type knob structure sketch map.
Description of reference numerals:
1. a knob 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. and (4) a common knob.
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, the explosion-proof knob structure comprises a knob handle 11, a mechanism shaft 3, a mechanism seat 7, an upper fixing plate 8 and a lower fixing plate 11;
the knob handle 11 is sleeved outside the mechanism shaft 3; a round opening is formed in the middle of the mechanism seat 7, and the mechanism shaft 3 is installed in the opening of the mechanism seat 7; the mechanism seat 7 is welded on the box cover 6;
the upper fixing plate 8 is welded at the bottom of the mechanism seat 7; a sleeve 10 is also arranged between the upper fixing plate 8 and the lower fixing plate 11; the lower fixing plate 11 is connected with the upper fixing plate 8 through a long screw 9; the long screw 9 sequentially penetrates through the lower fixing plate 11 and the sleeve 10 from bottom to top to be in threaded connection with the upper fixing plate 8;
the lower fixing plate 11 is used for mounting a common knob 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 circular hole of the mechanism seat 7, and the diameter of the second connecting piece is larger than that of the circular hole, so that the mechanism shaft 3 cannot be drawn out of the upper part of the mechanism seat 7.
The upper part of the rotating piece is provided with a first annular groove, and a sealing ring 5 is arranged in the first annular groove and used for preventing water and dust;
and the upper part of the first annular groove is also provided with a second annular groove, and a shaft elastic check ring 4 is arranged in the second annular groove and used for preventing the mechanism shaft 3 from loosening.
The knob handle 11 is provided with a sunken screw hole, and the knob handle 11 is fixed on the first connecting piece at the upper part of the mechanism shaft 3 through the screw 2.
The lower fixing plate is provided with a mounting hole, and the diameter of the mounting hole corresponds to the diameter of the middle rotating shaft of the common knob and is smaller than the diameter of the top cap of the common knob; the bottom of the second connecting piece is provided with a groove, the upper part of the top cap of the common knob 14 is provided with a convex block, and the convex block is fixedly connected with the groove.
An elastic pad 13 and a flat pad 12 are also arranged between the screw and the lower fixing plate 11.
When in normal use, the rotary knob handle 11 drives the common knob 14 to rotate through the mechanism shaft 3.
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 knob structure is characterized in that: comprises a knob handle (1), a mechanism shaft (3), a mechanism seat (7), an upper fixing plate (8) and a lower fixing plate (11);
the knob handle (1) is sleeved outside the mechanism shaft (3); the middle part of the mechanism seat is provided with a round opening, and the mechanism shaft is arranged in the opening of the mechanism seat; the mechanism seat (7) is welded on the box cover (6);
the upper fixing plate (8) is welded at the bottom of the mechanism seat (7); a sleeve (10) is also arranged between the upper fixing plate (8) and the lower fixing plate (11); the lower fixing plate (11) is connected with the upper fixing plate (8) through a long screw (9); the long screw (9) sequentially penetrates through the lower fixing plate (11) and the sleeve (10) from bottom to top to be in threaded connection with the upper fixing plate (8);
the lower fixing plate is used for mounting a common knob (14).
2. The explosion-proof knob structure according to claim 1, characterized in that: 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 circular opening of the mechanism seat, and the diameter of the second connecting piece is larger than that of the circular opening.
3. The explosion-proof knob structure according to claim 2, characterized in that: the upper part of the rotating piece is provided with a first annular groove, and a sealing ring (5) is arranged in the first annular groove;
the upper part of the first annular groove is also provided with a second annular groove, and a shaft elastic check ring (4) is arranged in the second annular groove and used for preventing the mechanism shaft (3) from loosening.
4. The explosion-proof knob structure according to claim 3, characterized in that: the knob handle (1) is provided with a sunken screw hole, and the knob handle (1) is fixed on the first connecting piece at the upper part of the mechanism shaft (3) through a screw (2).
5. The flameproof knob structure of claim 4, wherein: the lower fixing plate is provided with a mounting hole, and the diameter of the mounting hole corresponds to the diameter of the middle rotating shaft of the common knob and is smaller than the diameter of the top cap of the common knob; the bottom of the second connecting piece is provided with a groove, the upper part of the top cap of the common knob (14) is provided with a convex block, and the convex block is fixedly connected with the groove.
6. The explosion-proof knob structure according to claim 1, characterized in that: an elastic pad (13) and a flat pad (12) are arranged between the screw and the lower fixing plate (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921847587.4U CN210866015U (en) | 2019-10-30 | 2019-10-30 | Explosion-proof knob structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921847587.4U CN210866015U (en) | 2019-10-30 | 2019-10-30 | Explosion-proof knob structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210866015U true CN210866015U (en) | 2020-06-26 |
Family
ID=71288819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921847587.4U Active CN210866015U (en) | 2019-10-30 | 2019-10-30 | Explosion-proof knob structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210866015U (en) |
-
2019
- 2019-10-30 CN CN201921847587.4U patent/CN210866015U/en active Active
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