CN114334518A - Waterproof construction and rotary switch - Google Patents

Waterproof construction and rotary switch Download PDF

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Publication number
CN114334518A
CN114334518A CN202210006484.5A CN202210006484A CN114334518A CN 114334518 A CN114334518 A CN 114334518A CN 202210006484 A CN202210006484 A CN 202210006484A CN 114334518 A CN114334518 A CN 114334518A
Authority
CN
China
Prior art keywords
sealing ring
sealing
positioning
rotating shaft
waterproof structure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210006484.5A
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Chinese (zh)
Inventor
薛豪
何金垚
张红伟
计新华
赵青青
金显将
郑彬
许浩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Tengen Electric Co Ltd
Original Assignee
Zhejiang Tengen Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Tengen Electric Co Ltd filed Critical Zhejiang Tengen Electric Co Ltd
Priority to CN202210006484.5A priority Critical patent/CN114334518A/en
Publication of CN114334518A publication Critical patent/CN114334518A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a waterproof structure and a rotary switch, belonging to the technical field of electrical switches, wherein the waterproof structure comprises a rotating shaft and an end cover penetrated by the rotating shaft, a first sealing ring and a second sealing ring are sequentially sleeved on the rotating shaft, the first sealing ring is fixedly connected with the rotating shaft, the second sealing ring is in rotating fit with the rotating shaft, and the second sealing ring is fixedly connected with the end cover; when the rotating shaft rotates, the first sealing ring rotates synchronously along with the rotating shaft, the second sealing ring and the cover body keep static, and the first sealing ring and the second sealing ring rotate relatively. The waterproof structure provided by the invention is beneficial to avoiding local deformation of the sealing ring and improving the waterproof sealing effect.

Description

Waterproof construction and rotary switch
Technical Field
The invention relates to the technical field of electrical switches, in particular to a waterproof structure and a rotary switch.
Background
The rotary switch is a switch which controls a moving contact and a static contact in the switch to be switched on and off by a rotary handle.
Traditional rotary switch establishes the sealing washer through filling up between lid and pivot and realizes the sealed effect between the two, nevertheless because the sealing washer receives to rotate at the pivot rotation in-process and draws and produce the friction between the lid, leads to sealing washer local deformation easily, influences the normal waterproof sealing effect of lid.
Disclosure of Invention
Therefore, the technical problem to be solved by the present invention is to overcome the defect of poor sealing effect of the waterproof structure of the rotary switch in the prior art, so as to provide a waterproof structure and a rotary switch.
In order to solve the above problems, the present invention provides a waterproof structure including:
the sealing device comprises a rotating shaft and an end cover penetrated by the rotating shaft, wherein a first sealing ring and a second sealing ring are sequentially sleeved on the rotating shaft, a supporting platform extending outwards in the radial direction is arranged on the rotating shaft, the first sealing ring is statically arranged relative to the supporting platform, the second sealing ring is rotationally matched with the rotating shaft, and the second sealing ring is statically arranged relative to the end cover;
when the rotating shaft rotates, the first sealing ring follows the rotating shaft to synchronously rotate, the second sealing ring keeps static with the cover body, the first sealing ring and the second sealing ring relatively rotate, and a lubricating layer is arranged between the first sealing ring and the second sealing ring.
Further, the bearing platform is provided with an installation groove with an upward opening, and the first sealing ring is accommodated in the installation groove.
Furthermore, a first positioning protrusion is arranged in the mounting groove, and a first positioning groove used for being inserted with the first positioning protrusion is formed in the first sealing ring.
Furthermore, a first connecting rib is arranged between every two adjacent first positioning bulges, and a second positioning groove used for accommodating the first connecting rib is formed in the first sealing ring.
Furthermore, a second positioning protrusion is arranged on a mounting surface, facing the second sealing ring, of the end cover, and a third positioning groove used for being inserted with the second positioning protrusion is arranged on the second sealing ring.
Further, the second positioning bulge is provided with a plurality of spaced parts in the end cover.
Furthermore, a second connecting rib is arranged between every two adjacent second positioning bulges, and a fourth positioning groove for accommodating the second connecting rib is formed in the second sealing ring.
Further, the lubricating layer is silicone oil or vaseline.
Furthermore, the section of the rotating shaft penetrating through the end cover is sleeved with a third sealing ring, and the third sealing ring is axially limited through the rotating shaft and/or an annular groove in the end cover.
The present invention also provides a rotary switch, comprising: a water repellent structure as claimed in any one of the preceding claims.
The technical scheme of the invention has the following advantages:
1. according to the waterproof structure provided by the invention, the double sealing rings are arranged between the cover body and the switch main body, wherein the first sealing ring rotates along with the rotating shaft, the second sealing ring and the cover body are kept static, when the rotating shaft rotates, the first sealing ring and the second sealing ring rotate relatively, and the first sealing ring and the second sealing ring are made of the same material, so that the local deformation of the sealing rings cannot be caused due to the relative rotation between the first sealing ring and the second sealing ring, the waterproof sealing effect can be improved, and the service life of the rotary switch can be prolonged.
2. According to the waterproof structure provided by the invention, the bearing platform is arranged on the rotating shaft, the bearing platform is provided with the mounting groove with the upward opening, the first sealing ring is accommodated in the mounting groove, the circumferential constraint effect on the first sealing ring can be achieved, in addition, the mounting groove can be used for injecting lubricating grease, and the normal sealing effect is prevented from being influenced by the leakage of the grease.
3. According to the waterproof structure provided by the invention, the first positioning bulge is arranged in the mounting groove, and the first sealing ring is provided with the first positioning groove for inserting the first positioning bulge, so that the circumferential direction of the first sealing ring can be conveniently positioned, and the first sealing ring is prevented from being deformed by being pressed by external force.
4. According to the waterproof structure provided by the invention, the first positioning bulges of the mounting groove are provided with the plurality of the positioning bulges at intervals, so that the positioning effect on the first sealing ring can be further enhanced, and the first sealing ring is prevented from displacing relative to the mounting groove to influence the normal sealing state.
5. According to the waterproof structure provided by the invention, the end cover is provided with the second positioning protrusion, the second sealing ring is provided with the third positioning groove for inserting the second positioning protrusion, the circumferential direction of the second sealing ring can be conveniently positioned, and the second sealing ring is prevented from being deformed by being pressed by external force.
6. According to the waterproof mechanism provided by the invention, the end of the rotating shaft penetrating through the end cover is sleeved with the third sealing ring to form a double-sealing structure, so that the sealing effect between the rotating shaft and the end cover can be further improved.
7. The rotary switch provided by the invention has all the advantages of the waterproof structure due to the waterproof structure.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic view of the overall structure of a rotary switch according to an embodiment of the present invention;
FIG. 2 is an exploded view of FIG. 1;
FIG. 3 is a front cross-sectional view of a rotary switch in an embodiment of the present invention;
FIG. 4 is an enlarged view of portion A of FIG. 3;
FIG. 5 is a schematic diagram of a support platform according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a first seal ring according to an embodiment of the present invention;
FIG. 7 is a schematic structural view of an end cap according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a second seal ring in an embodiment of the invention.
Description of reference numerals:
1. a rotating shaft; 2. an end cap; 3. a first seal ring; 4. a second seal ring; 5. a third seal ring;
11. a supporting platform; 12. mounting grooves;
121. a first positioning projection; 122. a first connecting rib; 211. a second positioning projection; 212. a second connecting rib;
311. a first positioning groove; 312. a second positioning groove; 313. a first bump; 411. a third positioning groove; 412. a fourth positioning groove; 413. and a second bump.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but 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 thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
As shown in fig. 1 to 4, the present embodiment provides a waterproof structure, which can be applied to a rotary switch for waterproof sealing between a rotating shaft 1 and an end cap 2 of the rotary switch. The waterproof structure includes: pivot 1 and the end cover 2 that is passed by pivot 1, the cover is equipped with first sealing washer 3 and second sealing washer 4 in proper order in pivot 1, first sealing washer 3 and 1 fixed connection of pivot, second sealing washer 4 and 1 normal running fit of pivot, second sealing washer 4 and end cover 2 fixed connection. The pivot 1 is at the rotation in-process, and first sealing washer 3 follows pivot 1 synchronous rotation, and second sealing washer 4 and lid remain static, first sealing washer 3 with the second sealing washer between 4 relative rotation settings to reduce the sealing washer and receive pivot 1 to rotate and the local deformation that produces, promote waterproof sealing effect.
Here, it should be noted that, in the present embodiment, the first seal ring 3 is statically disposed with respect to the rotating shaft 1, and the second seal ring 4 is statically disposed with respect to the end cover 2, that is: first sealing washer 3 is along with pivot 1 simultaneous movement, and second sealing washer 4 is along with end cover 2 simultaneous movement, as an alternative embodiment, first sealing washer 3 can also be through the mode fixed connection that bonds on the bearing platform 11 of pivot 1, second sealing washer 4 can also be through the mode fixed connection that bonds on end cover 2.
As shown in fig. 5 in detail, the rotating shaft 1 in this embodiment is provided with a supporting platform 11 extending outward along the radial direction of the rotating shaft 1, the supporting platform 11 is provided with a mounting groove 12 opening upward, and the first sealing ring 3 is accommodated in the mounting groove 12 to form a circumferential rotation restriction on the first sealing ring 3. Here, set up mounting groove 12 again and can be convenient for hold the lubricated grease of injection, avoid grease to leak and influence normal sealed effect, in addition, can also be provided with other structures that are used for with end cover 2 positioning on the bearing platform 11, to this no longer concrete description in this embodiment.
Here, first locating protrusion 121 has in mounting groove 12, first sealing washer 3 is last to have the first positioning groove 311 that is used for pegging graft first locating protrusion 121, this first locating protrusion 121 is the annular arch that sets up along mounting groove 12 circumference, first positioning groove 311 corresponds the position setting of first locating protrusion 121, when first sealing washer 3 is pegged graft and gets into in mounting groove 12, the usable first locating protrusion 121 of first sealing washer 3 carries out positioning assembly, thereby be convenient for first sealing washer 3 inlays and establishes to mounting groove 12 in, avoid first sealing washer 3 to deviate from bearing platform 11.
As shown in fig. 5 and 6, the first positioning protrusions 121 in this embodiment have four circumferentially spaced-apart locations in the mounting groove 12, a first connecting rib 122 is disposed between two adjacent first positioning protrusions 121, the first connecting rib 122 is disposed at a lower height than the first positioning protrusions 121, correspondingly, the first sealing ring 3 has a second positioning groove 312 for accommodating the first connecting rib 122, the first positioning groove 311 is provided with a first protruding block 313 corresponding to the first connecting rib 122, the second positioning groove 312 is defined as a portion above the plane of the first protruding block 313 of the first positioning groove 311, when the first sealing ring 3 is inserted into the mounting groove 12, the first connecting rib 122 is embedded in the second positioning groove 312, so as to form a circumferential rotation limit between the first sealing ring 3 and the mounting groove 12.
As an alternative embodiment, the height of the first connecting rib 122 in this embodiment may be higher than that of the first positioning protrusion 121, as long as a height difference is formed between the first connecting rib 122 and the first positioning protrusion 121, so that the first positioning groove 311 and the first connecting rib 122 are clamped to restrict relative rotation.
As another alternative, the first connecting rib 122 may not be provided, and the first protrusion 313 may be directly embedded between two adjacent first positioning protrusions 121; as another alternative embodiment, the first positioning projection 121 may be provided in other shapes in the mounting groove 12, such as a saw-tooth shape or a multi-step shape; the first positioning protrusions 121 may be provided in other numbers, which is not absolutely limited in this embodiment, as long as the rotation limit state between the mounting groove 12 and the first sealing ring 3 is ensured.
As shown in fig. 7, the end cap 2 in this embodiment is fastened to the supporting platform 11, a second positioning protrusion 211 is provided on a mounting surface of the end cap 2 facing the second sealing ring 4, and a third positioning groove 411 for inserting the second positioning protrusion 211 is provided on the second sealing ring 4. The protruding 211 of second location of end cover 2 after the assembly is located mounting groove 12, and third positioning groove 411 corresponds the position setting of first location arch 121, and when second sealing washer 4 pegged graft and gets into on end cover 2, usable second location of second sealing washer 211 and third positioning groove 411 carry out positioning assembly, thereby be convenient for second sealing washer 4 inlays and establishes to end cover 2 in.
As shown in fig. 7 and 8, the second positioning protrusions 211 in this embodiment have four circumferentially spaced-apart locations on the end cap 2, a second connecting rib 212 is disposed between two adjacent second positioning protrusions 211, the second connecting rib 212 is disposed at a lower height relative to the second positioning protrusions 211, correspondingly, the second sealing ring 4 has a fourth positioning groove 412 for accommodating the second connecting rib 212, the third positioning groove 411 is provided with a second protrusion 413 disposed corresponding to the first connecting rib 122, the fourth positioning groove 412 is defined as a portion above the plane of the second protrusion 413 of the third positioning groove 411, and when the second sealing ring 4 is inserted into the second positioning protrusions 211, the second connecting rib 212 is inserted into the fourth positioning groove 412, so as to form a circumferential rotation limit between the second sealing ring 4 and the end cap 2.
As an alternative embodiment, the height of the second connecting rib 212 in this embodiment may be higher than that of the second positioning protrusion 211, as long as a height difference is formed between the second connecting rib 212 and the second positioning protrusion 211, so that the fourth positioning groove 412 and the second connecting rib 212 are clamped to restrict relative rotation.
As another alternative, the second connecting rib 212 may not be provided, and the second protrusion 413 may be directly embedded between two adjacent second positioning protrusions 211; as another alternative embodiment, the second positioning projection 211 is provided in other shapes, such as a saw-tooth shape or a multi-step shape, on the inner wall surface of the end cap 2; the number of the second positioning protrusions 211 may be other than the number of the second positioning protrusions, which is not absolutely limited in this embodiment, as long as the rotation limit state between the end cap 2 and the second seal ring 4 is ensured.
In this embodiment, the first sealing ring 3 is inserted into the mounting groove 12, and after the second sealing ring 4 is assembled to the end cover 2, the end cover 2 is assembled on the supporting platform 11 of the rotating shaft 1, and the first sealing ring 3 and the second sealing ring 4 are in a mutually abutting state. The first sealing ring 3 and the second sealing ring 4 both adopt the existing mature sealing gaskets made of the same material, and the end surfaces of the abutting ends corresponding to the first sealing ring 3 and the second sealing ring 4 are smooth planes, so that the first sealing ring 3 and the second sealing ring 4 can slide and rotate relatively; as an alternative embodiment, the end surface of the abutting end may be a wedge surface with a certain angle, or an annular protrusion that is engaged with each other may be provided on the abutting end, as long as it is ensured that the relative sliding effect is not affected after the first sealing ring 3 and the second sealing ring 4 abut against each other.
As another preferred embodiment, a lubricating layer is further disposed between the abutting ends of the first sealing ring 3 and the second sealing ring 4, and the lubricating layer is coated with a silicone oil material, so as to further reduce the friction force between the first sealing ring 3 and the second sealing ring 4, and avoid deformation of the first sealing ring 3 and the second sealing ring when the two rotate relatively, which affects the normal sealing effect. Of course, other materials such as vaseline oil can be used for the lubricating layer, which is only exemplified in this embodiment.
Still as shown in fig. 5, the section that pivot 1 passed end cover 2 in this embodiment is overlapped and is equipped with third sealing washer 5, and third sealing washer 5 carries out circumference spacing through the annular groove that sets up on pivot 1, promptly: the assembled third sealing ring 5 is positioned at the overlapping part of the end cover 2 and the rotating shaft 1, and the third sealing ring 5 can adopt an annular sealing ring with a circular section, so that the end cover 2 and the rotating shaft 1 are sealed together with the first sealing ring 3 and the second sealing ring 4, and a sealing effect is enhanced; as an alternative embodiment, the third sealing ring 5 can also be arranged in a corresponding annular groove in the end cap 2.
The waterproof construction that this embodiment provided, set up two sealing washers between lid and switch main part, wherein, first sealing washer 3 follows pivot 1 and rotates, second sealing washer 4 keeps static with the lid, when pivot 1 rotates, relative rotation between first sealing washer 3 and the second sealing washer 4, because first sealing washer 3 and second sealing washer 4 are soft sealing material together, relative rotation between first sealing washer 3 and the second sealing washer 4, can not arouse the local deformation of sealing washer, consequently, waterproof sealing's effect can be improved, be favorable to prolonging rotary switch's life.
Example 2
As shown in fig. 1 and 2, the present embodiment provides a rotary switch to which the waterproof structure as described in embodiment 1 is applied for waterproof sealing between a rotary shaft 1 and an end cap 2 of the rotary switch.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims (10)

1. A waterproof structure characterized by comprising: the sealing device comprises a rotating shaft (1) and an end cover (2) penetrated by the rotating shaft (1), wherein a first sealing ring (3) and a second sealing ring (4) are sequentially sleeved on the rotating shaft (1), a supporting platform (11) extending outwards in the radial direction is arranged on the rotating shaft (1), the first sealing ring (3) is statically arranged relative to the supporting platform (11), the second sealing ring (4) is in rotating fit with the rotating shaft (1), and the second sealing ring (4) is statically arranged relative to the end cover (2);
when pivot (1) rotated, first sealing washer (3) were followed pivot (1) synchronous rotation, second sealing washer (4) with end cover (2) keep static, first sealing washer (3) with relative rotation between second sealing washer (4), first sealing washer (3) with be equipped with the lubricant film between second sealing washer (4).
2. The waterproofing structure according to claim 1 wherein the support platform (11) has an upwardly open mounting groove (12) and the first sealing ring (3) is housed in the mounting groove (12).
3. The waterproof structure according to claim 2, wherein the mounting groove (12) is provided with a first positioning protrusion (121), and the first sealing ring (3) is provided with a first positioning groove (311) for inserting the first positioning protrusion (121).
4. The waterproof structure according to claim 3, wherein a first connecting rib (122) is provided between two adjacent first positioning protrusions (121), and the first sealing ring (3) is provided with a second positioning groove (312) for accommodating the first connecting rib (122).
5. The waterproof structure according to any one of claims 1 to 4, wherein a mounting surface of the end cover (2) facing the second seal ring (4) has a second positioning protrusion (211), and the second seal ring (4) has a third positioning groove (411) for inserting the second positioning protrusion (211).
6. The waterproof structure according to claim 5, characterized in that the second positioning projections (211) have a plurality of spaced-apart arrangement within the end cover (2).
7. The waterproof structure according to claim 6, wherein a second connecting rib (212) is arranged between two adjacent second positioning protrusions (211), and a fourth positioning groove (412) for accommodating the second connecting rib (212) is arranged on the second sealing ring (4).
8. The waterproof structure according to any one of claims 1 to 4, wherein said lubricating layer is silicone oil or vaseline.
9. The waterproof structure according to any one of claims 1 to 4, characterized in that a section of the shaft (1) passing through the end cap (2) is sleeved with a third sealing ring (5), and the third sealing ring (5) is axially limited by an annular groove on the shaft (1) and/or the end cap (2).
10. A rotary switch, comprising: the waterproof structure as claimed in any one of claims 1 to 9.
CN202210006484.5A 2022-01-05 2022-01-05 Waterproof construction and rotary switch Pending CN114334518A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210006484.5A CN114334518A (en) 2022-01-05 2022-01-05 Waterproof construction and rotary switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210006484.5A CN114334518A (en) 2022-01-05 2022-01-05 Waterproof construction and rotary switch

Publications (1)

Publication Number Publication Date
CN114334518A true CN114334518A (en) 2022-04-12

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CN202210006484.5A Pending CN114334518A (en) 2022-01-05 2022-01-05 Waterproof construction and rotary switch

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Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201689358U (en) * 2010-03-19 2010-12-29 阿尔派株式会社 Rotary operating device
CN202550435U (en) * 2012-04-23 2012-11-21 乐清市信达利实业有限公司 BSP (British Standard Pipe) waterproof cable joint
CN102867674A (en) * 2011-07-08 2013-01-09 海洋王照明科技股份有限公司 Circuit switch control device
CN206059251U (en) * 2016-08-19 2017-03-29 浙江正泰电器股份有限公司 Knob structure
CN206761437U (en) * 2016-12-29 2017-12-19 浙江绍兴苏泊尔生活电器有限公司 Cooking utensil
CN207893007U (en) * 2018-02-05 2018-09-21 陈云飞 Rotating device and rotary system
CN208706991U (en) * 2018-09-05 2019-04-05 苏州正北连接技术有限公司 Double waterproof sealing structure applied to connector
CN208753203U (en) * 2018-10-19 2019-04-16 上海天逸电器有限公司 A kind of waterproof construction of rotary switch
CN209213786U (en) * 2018-11-16 2019-08-06 温州领拓电气有限公司 Light-controller pedestal
CN214313010U (en) * 2021-03-25 2021-09-28 贵州振华华联电子有限公司 Square-mounted subminiature sealed rotary switch
WO2021218008A1 (en) * 2020-04-27 2021-11-04 广东洲明节能科技有限公司 Sealing ring, light sensation controller and led street lamp
CN216487807U (en) * 2022-01-05 2022-05-10 浙江天正电气股份有限公司 Waterproof construction and rotary switch

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201689358U (en) * 2010-03-19 2010-12-29 阿尔派株式会社 Rotary operating device
CN102867674A (en) * 2011-07-08 2013-01-09 海洋王照明科技股份有限公司 Circuit switch control device
CN202550435U (en) * 2012-04-23 2012-11-21 乐清市信达利实业有限公司 BSP (British Standard Pipe) waterproof cable joint
CN206059251U (en) * 2016-08-19 2017-03-29 浙江正泰电器股份有限公司 Knob structure
CN206761437U (en) * 2016-12-29 2017-12-19 浙江绍兴苏泊尔生活电器有限公司 Cooking utensil
CN207893007U (en) * 2018-02-05 2018-09-21 陈云飞 Rotating device and rotary system
CN208706991U (en) * 2018-09-05 2019-04-05 苏州正北连接技术有限公司 Double waterproof sealing structure applied to connector
CN208753203U (en) * 2018-10-19 2019-04-16 上海天逸电器有限公司 A kind of waterproof construction of rotary switch
CN209213786U (en) * 2018-11-16 2019-08-06 温州领拓电气有限公司 Light-controller pedestal
WO2021218008A1 (en) * 2020-04-27 2021-11-04 广东洲明节能科技有限公司 Sealing ring, light sensation controller and led street lamp
CN214313010U (en) * 2021-03-25 2021-09-28 贵州振华华联电子有限公司 Square-mounted subminiature sealed rotary switch
CN216487807U (en) * 2022-01-05 2022-05-10 浙江天正电气股份有限公司 Waterproof construction and rotary switch

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