CN108172442B - Electrical control knob switch - Google Patents
Electrical control knob switch Download PDFInfo
- Publication number
- CN108172442B CN108172442B CN201711470208.XA CN201711470208A CN108172442B CN 108172442 B CN108172442 B CN 108172442B CN 201711470208 A CN201711470208 A CN 201711470208A CN 108172442 B CN108172442 B CN 108172442B
- Authority
- CN
- China
- Prior art keywords
- push rod
- knob
- cam
- sleeve
- buckle
- 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.)
- Active
Links
- 230000000670 limiting effect Effects 0.000 claims abstract description 14
- 238000003780 insertion Methods 0.000 claims abstract description 11
- 230000037431 insertion Effects 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims description 16
- 239000012780 transparent material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 5
- 239000000428 dust Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
- H01H19/02—Details
- H01H19/10—Movable parts; Contacts mounted thereon
- H01H19/14—Operating parts, e.g. turn knob
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
- H01H19/02—Details
- H01H19/025—Light-emitting indicators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
- H01H19/02—Details
- H01H19/04—Cases; Covers
- H01H19/06—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
- H01H19/02—Details
- H01H19/10—Movable parts; Contacts mounted thereon
- H01H19/20—Driving mechanisms allowing angular displacement of the operating part to be effective in either direction
Landscapes
- Push-Button Switches (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Abstract
The invention provides an electric control knob switch, which comprises a knob part and a push rod device; the knob part comprises a knob wrench and a knob platform, the knob wrench comprises a wrench body, and the connecting column is provided with a first buckle and a second buckle; the top of the knob platform is provided with a spanner clamping table, and a first clamping groove which is matched and clamped and fixed with the first buckle is arranged in the socket; the bottom of the knob platform is provided with an annular boss downwards, and both sides of the annular boss are provided with knob limiting blocks outwards; the push rod device comprises a sleeve, a cam, a push rod group and a push rod fixing table which are arranged in the sleeve, wherein an insertion hole is arranged in the sleeve, and an annular fixing table and a knob limiting baffle are arranged at the top of the sleeve; the outer side of the sleeve is provided with external threads; the top end face of the cam is outwards provided with a wavy horizontal plane and a descending plane; push rod sliding grooves are respectively arranged at the left end and the right end of the push rod fixing table; the push rod group is internally provided with an opening for accommodating the elastic resetting device, and the bottom of the push rod chute is provided with a limit sliding block extending into the opening.
Description
Technical Field
The invention relates to the field of knob switches, in particular to an electric control knob switch.
Background
At present, a knob switch is used as a common switch combined component and applied to various working condition occasions, and the principle is that the rotary action of a manual rotary operator is converted into the reciprocating linear motion of a push rod, and the reciprocating linear motion is continuously or transiently stopped at a certain specific position, so that the movable contact or the fixed contact of a button switch element is contacted or separated, and the switching of a control switch circuit is realized, so that the on-off control of an electric switch is realized. Most of the existing knob switches adopt a structure of a single spring for controlling double push rods. The problem with this construction is that when one pushrod is moved, the spring is compressed, and the other pushrod inevitably has some unwanted movements, which are not only poor in hand feeling, but also have certain potential safety hazards. In addition, the existing knob switch is poor in tightness, dust and oil dirt easily infiltrate into the switch in the using occasions of multiple dust and multiple oil dirt, poor contact of switch contacts is formed, accidents are easy to occur, and the service life of the existing knob switch is greatly reduced due to corrosion of the oil dirt, so that the tightness of the knob switch of an electric appliance is effectively solved, and the problem in the field is urgently solved.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the electric control knob switch which can effectively solve the problem of tightness, maintain good handfeel and better seal and protect electric elements.
Technical proposal
An electrical control knob switch comprises a knob part and a push rod device; the knob part comprises a knob wrench and a knob platform, the knob wrench comprises a wrench body, a connecting column is arranged at the bottom of the wrench body, and a first buckle and a second buckle are arranged on the outer wall of the connecting column; the top of the knob platform is provided with a socket for accommodating the insertion of the connecting column and a wrench clamping table for accommodating the insertion of the wrench body, and a first clamping groove which is matched and clamped and fixed with the first buckle is arranged in the socket; an annular boss is downwards arranged at the bottom of the knob platform, and knob limiting blocks are outwards arranged at two sides of the annular boss; the push rod device comprises a sleeve, a cam, a push rod group and a push rod fixing table, wherein the cam, the push rod group and the push rod fixing table are arranged in the sleeve, a jack for accommodating the insertion of the connecting column is arranged in the sleeve, an annular fixing table for accommodating the annular boss is arranged at the top of the sleeve, and a knob limiting baffle matched with the knob limiting block is arranged on the bottom surface of the annular fixing table; the outer side of the sleeve is provided with external threads; the bottom of the sleeve is provided with an accommodating cavity for accommodating the cam, the push rod group and the push rod fixing table, the cam is arranged at the top of the accommodating cavity, and a second clamping groove capable of accommodating the second buckle insertion clamping fixing of the connecting column is formed in the cam; the top end face of the cam is provided with a wavy horizontal plane and a wavy descending plane in an outward protruding mode; the push rod fixing table is arranged at the bottom of the cam, and push rod sliding grooves for accommodating the push rod group to vertically slide up and down are respectively formed in the left end and the right end of the push rod fixing table; the inside of the push rod group is provided with an opening for accommodating an elastic resetting device, the bottom of the push rod chute is provided with a limit sliding block extending into the opening, and the elastic resetting device is arranged between the top of the opening and the limit sliding block and is used for enabling the top of the push rod group to prop against the horizontal plane of the cam; the connecting column of the wrench body is inserted into the knob platform and the cam to enable the wrench body, the knob platform and the cam to be in integral fixed connection, and the connecting column is used for driving the knob platform and the cam to synchronously rotate when the wrench body is rotated, and the descending surface of the cam is contacted with the push rod group in the rotating direction to push the push rod group to slide downwards along the push rod sliding chute.
The socket of the sleeve is internally provided with a V-shaped sealing ring, the outer side of the V-shaped sealing ring is in surface contact with the side wall of the socket, the inner side of the V-shaped sealing ring is sleeved on the connecting column, and the connecting column is provided with a sealing groove sleeved on the inner side of the V-shaped sealing ring.
The elastic resetting device comprises a high-elasticity spring.
The push rod fixing table is characterized in that a fixing buckle is arranged on the outer side wall of the push rod fixing table, and a fixing bayonet matched with the buckle is arranged at the bottom of the sleeve, so that the push rod fixing table is clamped at the bottom of the sleeve.
The first buckle and the second buckle are both provided with convex fixing convex blocks, and the first clamping groove and the second clamping groove are both provided with fixing grooves corresponding to the fixing convex blocks.
The knob wrench is made of transparent materials.
Advantageous effects
Compared with the prior art, the invention has the following beneficial effects:
after the connecting column of the wrench body is inserted into the knob platform and the cam, the wrench body, the knob platform and the cam are fixedly connected in an integrated mode and used for driving the knob platform and the cam to synchronously rotate when the wrench body is rotated, the inclined panel of the cam is contacted with the push rod group corresponding to the rotating direction, and then the push rod group is pushed to slide downwards along the push rod sliding groove to form touch of a switch contact, so that the operation of a switch is completed.
The V-shaped sealing ring in the sleeve jack can effectively enable the sleeve to be in a good sealing state. Powder and oil dirt possibly generated in the operating environment outside the knob part can be isolated outside the sleeve and cannot enter the sleeve, so that the electric components are well protected.
The knob wrench can also be provided with an operating piece controlled by a key; the spliced pole not only can be used for transmitting rotary motion, when the luminous module is installed to the bottom of knob, light can follow the bottom of spliced pole and get into, conducts the top to the spanner body along the spliced pole to realize the luminous function of knob.
Drawings
Fig. 1 is a schematic structural view of an electrical control knob switch in the present invention.
Fig. 2 is a schematic cross-sectional view of an electrical control knob switch according to the present invention.
FIG. 3 is a schematic view of the structure of the knob platform and the sleeve according to the present invention.
FIG. 4 is a schematic diagram of a push rod assembly and a push rod platform according to the present invention.
Reference numerals:
Wrench body 1, spliced pole 2, knob platform 3, first buckle 4, second buckle 5, socket 6, wrench clamp platform 7, first draw-in groove 8, second draw-in groove 9, annular boss 10, knob stopper 11, sleeve 12, cam 13, push rod group 14, push rod fixed station 15, jack 16, annular fixed station 17, knob limit baffle 18, external screw thread 19, hold chamber 20, horizontal plane 21, decline face 22, push rod spout 23, opening 24, limit slider 25, V-arrangement sealing washer 26, seal groove 27, fixed buckle 28, fixed bayonet socket 29, high spring 30, spacing region 31.
Detailed Description
For a better illustration of the present invention, the following description is made in conjunction with the schematic drawings and the examples:
As shown in fig. 1 to 4, the present invention provides an electrical control knob switch including a knob portion and a push rod device; the knob part comprises a knob wrench and a knob platform 3, the knob wrench comprises a wrench body 1, a connecting column 2 is arranged at the bottom of the wrench body 1, and a first buckle 4 and a second buckle 5 are arranged on the outer wall of the connecting column 2; the top of the knob platform 3 is provided with a socket 6 for accommodating the insertion of the connecting column 2 and a wrench clamping table 7 for accommodating the insertion of the wrench body 1, and a first clamping groove 8 which is matched and clamped and fixed with the first buckle 4 is arranged in the socket 6; an annular boss 10 is arranged downwards at the bottom of the knob platform 3, and knob limiting blocks 11 are arranged outwards at two sides of the annular boss 10; the push rod device includes sleeve 12 and sets up cam 13, push rod group 14 and push rod fixed station 15 in sleeve 12, and sleeve 12 is built-in to hold spliced pole 2 male jack 16, and the sleeve 12 top is equipped with the annular fixed station 17 that holds annular boss 10, and annular fixed station 17 bottom surface is equipped with the knob limit baffle with knob stopper 11 looks adaptation, and knob limit baffle forms 2 fan-like spacing regions of mutual symmetry around this embodiment, and knob stopper 11 of annular boss 10 just can only rotate in these 2 fan-like regions, forms good spacing effect. The fan-shaped limiting area in the example is 90 degrees, namely, the knob wrench can only drive the knob platform 3 to rotate by 45 degrees left and right. Of course, the cam 13 may be of various shapes, so that the push rod set 14 can continuously or temporarily present different strokes and functional positions, and can also be combined with different knob limit baffles on the sleeve 12, and any angle change can be realized by changing the size of the sector area, so as to achieve different combinations of operation angles.
Further, an external thread 19 is arranged on the outer side of the sleeve 12; the bottom of the sleeve 12 is provided with a containing cavity 20 for containing the cam 13, the push rod group 14 and the push rod fixing table 15, the cam 13 is arranged at the top of the containing cavity 20, and a second clamping groove 9 for inserting and clamping the second buckle 5 capable of containing the connecting column 2 is arranged in the containing cavity; the push rod fixing table 15 is arranged at the bottom of the cam 13, and push rod sliding grooves 23 for accommodating the push rod group 14 to vertically slide up and down are respectively arranged at the left end and the right end of the push rod fixing table; the push rod group 14 is internally provided with an opening 24 for accommodating an elastic resetting device, the bottom of the push rod chute 23 is provided with a limit slide block 25 extending into the opening 24, the elastic resetting device is arranged between the top of the opening 24 and the limit slide block 25, and the elastic resetting device is preferably a high-elasticity spring 30 in the embodiment. The outer side wall of the push rod fixing table 15 is provided with a fixing buckle 28, and the bottom of the sleeve 12 is provided with a fixing bayonet 29 matched with the fixing buckle 28, so that the push rod fixing table 15 is clamped at the bottom of the sleeve 12. Preferably, the first buckle 4 and the second buckle 5 are both provided with convex fixing convex blocks (not shown), the first clamping groove 8 and the second clamping groove 9 are both provided with fixing grooves (not shown) corresponding to the fixing convex blocks, and the clamping effect is better.
Further, the top end surface of the cam 13 protrudes outwards to form a wavy horizontal plane 21 and a descending plane 22, and the top of the push rod group 14 is propped against the horizontal plane 21 of the cam 13 due to the action of the high elastic spring 30. When the connecting post 2 of the wrench body 1 is inserted into the knob platform 3 and the cam 13, the wrench body 1, the knob platform 3 and the cam 13 are fixedly connected in an integrated mode, and the wrench body 1 is rotated to drive the knob platform 3 and the cam 13 to synchronously rotate, when the top surface of the push rod group 14 moves in the horizontal plane 21 of the cam 13, the push rod group 14 is kept motionless in the vertical direction, after the descending surface 22 of the cam 13 contacts with the push rod group 14 encountered in the rotating direction, the push rod group 14 is pushed to slide downwards along the push rod sliding groove 23, the high-elasticity spring 30 starts to be compressed, and when the cam 13 is rotated to a certain angle, namely, the knob limiting block 11 touches the knob limiting baffle to form a limiting effect. The push rod group 14 is also pushed to a certain stroke, thereby realizing on-off control of the electric switch, and the high elastic spring 30 is also compressed to a certain extent. This completes the change of the rotational movement of the cam 13 to the vertical movement of the push rod group 14. When the wrench body 1 returns, the push rod set 14 is pushed to return by the elastic force of the high elastic spring 30 and continuously pushes against the horizontal surface 21 of the cam 13. In this example, the lock control can be achieved by changing the shape of the cam 13, i.e., the push rod group 14 is briefly stopped at a certain position, for achieving the effect of snap control. When the rotational manipulation force applied by the user to the knob wrench and knob platform 3 is lost or smaller than the elastic force of the high elastic spring 30, the elastic force of the high elastic spring 30 may restore the push rod set 14 to the original position, i.e., the top surface of the push rod set 14 may slide from the wavy descent surface 22 on the cam 13 to the horizontal surface 21, which in turn changes the vertical movement to the rotational movement.
Still further, be equipped with V-arrangement sealing washer 26 in the jack 16 of sleeve 12, the outside of V-arrangement sealing washer 26 and jack 16 lateral wall face contact, and its inboard cup joints on spliced pole 2, is equipped with the seal groove 27 of cup jointing V-arrangement sealing washer 26 inboard on the spliced pole 2 to can effectively play the liquid seal effect. Powder and oil dirt possibly generated in the operating environment outside the knob part can be isolated outside the sleeve 12 and cannot enter the sleeve 12, so that the electric components are well protected.
Further, the knob wrench is made of transparent materials. The knob wrench can also be provided with an operating piece controlled by a key; the spliced pole 2 not only can be used for transmitting the rotary motion, when the luminous module is installed to the bottom of knob, light can get into from the bottom of spliced pole 2, and the top to wrench body 1 is conducted along spliced pole 2 to realize the luminous function of knob.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the technical solution of the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solution described in the foregoing embodiments may be modified or some of the technical features thereof may be equally substituted; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (5)
1. An electrical control knob switch, characterized in that: comprises a knob part and a push rod device; the knob part comprises a knob wrench and a knob platform, the knob wrench comprises a wrench body, a connecting column is arranged at the bottom of the wrench body, and a first buckle and a second buckle are arranged on the outer wall of the connecting column; the top of the knob platform is provided with a socket for accommodating the insertion of the connecting column and a wrench clamping table for accommodating the insertion of the wrench body, and a first clamping groove which is matched and clamped and fixed with the first buckle is arranged in the socket; an annular boss is downwards arranged at the bottom of the knob platform, and knob limiting blocks are outwards arranged at two sides of the annular boss; the push rod device comprises a sleeve, a cam, a push rod group and a push rod fixing table, wherein the cam, the push rod group and the push rod fixing table are arranged in the sleeve, a jack for accommodating the insertion of the connecting column is arranged in the sleeve, an annular fixing table for accommodating the annular boss is arranged at the top of the sleeve, and a knob limiting baffle matched with the knob limiting block is arranged on the bottom surface of the annular fixing table; the outer side of the sleeve is provided with external threads; the bottom of the sleeve is provided with an accommodating cavity for accommodating the cam, the push rod group and the push rod fixing table, the cam is arranged at the top of the accommodating cavity, and a second clamping groove capable of accommodating the second buckle insertion clamping fixing of the connecting column is formed in the cam; the top end face of the cam is provided with a wavy horizontal plane and a wavy descending plane in an outward protruding mode; the push rod fixing table is arranged at the bottom of the cam, and push rod sliding grooves for accommodating the push rod group to vertically slide up and down are respectively formed in the left end and the right end of the push rod fixing table; the inside of the push rod group is provided with an opening for accommodating an elastic resetting device, the bottom of the push rod chute is provided with a limit sliding block extending into the opening, and the elastic resetting device is arranged between the top of the opening and the limit sliding block and is used for enabling the top of the push rod group to prop against the horizontal plane of the cam; the connecting column of the wrench body is inserted into the knob platform and the cam to enable the wrench body, the knob platform and the cam to be integrally and fixedly connected, and the connecting column is used for driving the knob platform and the cam to synchronously rotate when the wrench body is rotated, and the descending surface of the cam is contacted with the push rod group encountered in the rotating direction to push the push rod group to slide downwards along the push rod chute;
The socket of the sleeve is internally provided with a V-shaped sealing ring, the outer side of the V-shaped sealing ring is in surface contact with the side wall of the socket, the inner side of the V-shaped sealing ring is sleeved on the connecting column, and the connecting column is provided with a sealing groove sleeved on the inner side of the V-shaped sealing ring.
2. An electrical control knob switch according to claim 1 wherein: the elastic resetting device comprises a high-elasticity spring.
3. An electrical control knob switch according to claim 1 wherein: the push rod fixing table is characterized in that a buckle is arranged on the outer side wall of the push rod fixing table, and a bayonet matched with the buckle is arranged at the bottom of the sleeve, so that the push rod fixing table is clamped at the bottom of the sleeve.
4. An electrical control knob switch according to claim 1 wherein: the first buckle and the second buckle are both provided with convex fixing convex blocks, and the first clamping groove and the second clamping groove are both provided with fixing grooves corresponding to the fixing convex blocks.
5. An electrical control knob switch according to claim 1 wherein: the knob wrench is made of transparent materials.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201711470208.XA CN108172442B (en) | 2017-12-29 | 2017-12-29 | Electrical control knob switch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201711470208.XA CN108172442B (en) | 2017-12-29 | 2017-12-29 | Electrical control knob switch |
Publications (2)
Publication Number | Publication Date |
---|---|
CN108172442A CN108172442A (en) | 2018-06-15 |
CN108172442B true CN108172442B (en) | 2024-04-30 |
Family
ID=62519912
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201711470208.XA Active CN108172442B (en) | 2017-12-29 | 2017-12-29 | Electrical control knob switch |
Country Status (1)
Country | Link |
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CN (1) | CN108172442B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110828220A (en) * | 2018-08-10 | 2020-02-21 | 博西华电器(江苏)有限公司 | Household appliance's knob and household appliance |
CN113035629A (en) * | 2019-12-24 | 2021-06-25 | 菲尼克斯亚太电气(南京)有限公司 | Rotary switch with light guide and different gears |
CN212676165U (en) * | 2020-09-01 | 2021-03-09 | 苏州欧圣电气股份有限公司 | Gear knob device and fan thereof |
CN114055376B (en) * | 2021-11-23 | 2023-10-31 | 云南电网有限责任公司昭通供电局 | Digital display torsion sleeve for foundation bolt fastening spanner |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105448573A (en) * | 2015-12-28 | 2016-03-30 | 宁波速普电子有限公司 | New type triggering type emergency stop switch |
CN206059251U (en) * | 2016-08-19 | 2017-03-29 | 浙江正泰电器股份有限公司 | Knob structure |
JP2017134900A (en) * | 2016-01-25 | 2017-08-03 | 富士電機機器制御株式会社 | selector switch |
CN207637681U (en) * | 2017-12-29 | 2018-07-20 | 宁波速普电子有限公司 | A kind of electrical control rotary switch |
-
2017
- 2017-12-29 CN CN201711470208.XA patent/CN108172442B/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105448573A (en) * | 2015-12-28 | 2016-03-30 | 宁波速普电子有限公司 | New type triggering type emergency stop switch |
JP2017134900A (en) * | 2016-01-25 | 2017-08-03 | 富士電機機器制御株式会社 | selector switch |
CN206059251U (en) * | 2016-08-19 | 2017-03-29 | 浙江正泰电器股份有限公司 | Knob structure |
CN207637681U (en) * | 2017-12-29 | 2018-07-20 | 宁波速普电子有限公司 | A kind of electrical control rotary switch |
Also Published As
Publication number | Publication date |
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CN108172442A (en) | 2018-06-15 |
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