CN209232644U - A kind of self-locking structure of rotary switch - Google Patents
A kind of self-locking structure of rotary switch Download PDFInfo
- Publication number
- CN209232644U CN209232644U CN201920235921.4U CN201920235921U CN209232644U CN 209232644 U CN209232644 U CN 209232644U CN 201920235921 U CN201920235921 U CN 201920235921U CN 209232644 U CN209232644 U CN 209232644U
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- knob
- locking
- rotary switch
- self
- locking piece
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Abstract
The utility model discloses a kind of self-locking structures of rotary switch, including switch case and knob, locking structure is provided between the knob and switch case, the locking structure includes the locating slot being arranged on the annular end face of switch case top port, with the locking piece being slidably connected by connection structure and knob, locking piece includes the positioning card base extended towards annular end face side, using the technical program, locking piece is driven to turn to locating slot by knob, then locking piece is pushed so that positioning card base snaps onto locating slot, it is rotated by the location fit of positioning card base and locating slot with limiting knob, realize the self-locking to knob, to effectively prevent knob dynamic there is a phenomenon where misrouting, rotary switch is avoided to malfunction under abnormal operation, it eliminates safe hidden trouble, ensure the safety and normal operation of control circuit , the service performance and operational safety of rotary switch are promoted, practicability is good.
Description
Technical field
The utility model relates to switching equipment technologies, and in particular to a kind of self-locking structure of rotary switch.
Background technique
Rotary switch refers to be acted using knob rotation drive transmission device, is switched on or switched off movable contact and stationary contact simultaneously
Realize the electric switch of circuit conversion.In electric automatic control circuit, for manually issue control signal with control contactor,
Relay, electromagnetic starter etc..
Universal common rotary switch on the market, is mainly made of shell, middle seat, contact base, middle seat plays connection shell
The effect of body and contact base is provided with the dynamic and static contact that contact is supported and multiple groups are normally opened and normally closed, shell in contact base
Knob and transmission mechanism including mating connection, drive transmission device pushes downwards contact support movement when knob, with reality
Existing at least one set of dynamic and static contact is switched on or switched off, such as normally opened contact is connected, then normally-closed contact disconnects.This rotary switch
Corresponding working state should be to maintain after completing circuit changing-over to be failure to actuate, but is arranged since rotary switch lacks effective self-locking protection
It applies, knob is easy to the phenomenon that rotates because of the factors such as external force touching or maloperation, to cause rotary switch improper
Contact under operation is switched on or switched off, and causes the circuit controlled by rotary switch to be misrouted and changes, use reliability is poor, and there are larger
Security risk.
Utility model content
Therefore, the technical problems to be solved in the utility model overcome the knob of rotary switch in the prior art be easy to because
External force touching or maloperation and the phenomenon that rotates, cause the circuit controlled by rotary switch to be misrouted and change, and use reliability is poor,
There are problems that biggish security risk, so that providing a kind of pair of knob plays locking effect to limit rotation, ensures control electricity
Road is not misrouted and is changed, and the self-locking structure of the rotary switch of product service performance and operational safety is promoted.
In order to solve the above technical problems, the utility model provides a kind of self-locking structure of rotary switch, including switch case
The knob being rotatably set at the top of the switch case is provided between the knob and the switch case for keeping
The locking structure that the knob and the switch case relative position are fixed, the locking structure include:
At least one locating slot is arranged on the annular end face of the switch case top port；
Locking piece is connected by connection structure with the knob, and the axial direction relative to the knob along the knob is set
In set a distance slidably comprising at least one the positioning card base extended towards the annular end face side；The locking piece is with institute
It states at knob to the locating slot, and pushes pressure outside and drive the positioning card base to be caught in the locating slot to limit
The knob.
As a preferred embodiment, the connection structure includes two that the knob periphery is axially set in along the knob
A sliding slot, and it is correspondingly arranged in the elastic arms of two on the locking piece and being suitable for being slidably connected in the sliding slot, it is described
The end of two elastic arms is respectively set in positioning card base.
As a preferred embodiment, the locating slot is groove structure and the corresponding positioning card base is equipped with two, described
The one or both sides of positioning card base are provided with guiding surface.
As a preferred embodiment, it is provided between the sliding slot and elastic arms and limits the elastic arms sliding distance
Position limiting structure, the position limiting structure includes the retention bead being arranged in the sliding slot, and in the setting elastic arms
And be suitble to accommodate the limiting slot of the retention bead, the limiting slot and the sliding slot extend in the same direction setting.
As a preferred embodiment, two arc-shaped convex blocks are relatively set on the two sides cell wall of the sliding slot, it is described
The two sides of elastic arms are correspondingly arranged on S type chime, and the S type chime is sliding along the sliding slot with the elastic arms
It is contacted when dynamic with convex block cooperation.
As a preferred embodiment, the knob includes that rectangular driving lever portion is protruded out along its axial direction, two cunnings
Slot is respectively connected with driving lever portion two sides side, and the locking piece is adapted with the shape in the driving lever portion, and along described
It installs into the sliding slot two sides side in driving lever portion.
As a preferred embodiment, oversheath is connected with by helicitic texture in the top port of the switch case, institute
State the outer peripheral portion that oversheath covers in the knob.
Technical solutions of the utility model are compared and are had the advantages that compared with prior art
1. in rotary switch provided by the utility model, locking structure is by the positioning that is arranged on switch case annular end face
Slot and the locking piece being connected on button form, locking piece relative to knob can along the certain distance that slides axially of knob, according to
The rational design of turned position between locating slot and knob first passes through knob and drives locking piece rotation when needing hook knob
To locating slot, then locking piece is pushed so that positioning card base snaps onto locating slot, design is advantageous in that in this way, by fixed
The location fit of position card base and locating slot is rotated with limiting knob, is realized the self-locking to knob, is maintained at knob
Corresponding working state is failure to actuate, and could only be rotated again after releasing this location fit, so that knob be effectively prevent to touch because of external force
Touch or maloperation and it is dynamic there is a phenomenon where misrouting, that is, avoid rotary switch from malfunctioning under abnormal operation, to rotary switch rise
It to good protective action, eliminates safe hidden trouble, ensures the safety and normal operation of control circuit, promote making for rotary switch
With performance and operational safety, practicability is good.
2. in rotary switch provided by the utility model, two sliding slots are axially set in the knob periphery, institute along knob
It states locking piece and is slidably connected at by two elastic arms and realize in sliding slot and be slidably matched with knob, and the movement to locking piece
Direction is oriented to, and elastic arms is avoided arbitrarily to shake and deviate, it is ensured that positioning card base is with elastic arms along the axial direction of knob
It can be properly inserted into locating slot when sliding, cooperate reliable and stable, locking effect of the realization to knob.
3. in rotary switch provided by the utility model, the position limiting structure includes the limit convex being arranged in the sliding slot
It rises, and in the setting elastic arms and is suitble to accommodate the limiting slot of the retention bead, this structure setting passes through limit
Slot one end is resisted against in retention bead to stop elastic slot continuation to move up along the chute, so that locking piece be prevented to be detached from knob, is risen
To the effect of limit connection.
4. in rotary switch provided by the utility model, the two sides of the elasticity arms are provided with S type chime, described
It contacts when S type chime is slided with elastic arms with the cooperation of the convex block of sliding slot cell wall, this structure setting, when locking piece and determines
When position slot forms lock fit, the upper recess of S type chime and convex block cooperate, and unlock cooperate when, S type is convex
The lower lobes and convex block of side structure cooperate, and play the role of being in clamping connection to locking piece in this way, enhance connective stability, again
The location status of locking piece can be observed, rationally, cooperation is reliable for design.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described.
Fig. 1 is the schematic perspective view of the self-locking structure of rotary switch provided by the utility model switch；
Fig. 2 is the knob of the utility model and the mounting structure schematic diagram of locking piece；
Fig. 3 is structural schematic diagram of the locating slot of the utility model in switch case；
Fig. 4 is the structural schematic diagram of the knob of the utility model；
Description of symbols: 1- switch case, 11- annular end face, 2- knob, 21- sliding slot, 22- convex block, the clicking section 23-,
3- locating slot, 4- locking piece, 40- position card base, 41- elasticity arms, 42-S type chime, 5- position limiting structure, 51- limit convex
It rises, 52- limiting slot.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
In the description of the present invention, it should be noted that term " first ", " second ", " third " are only used for describing
Purpose is not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Embodiment 1
The present embodiment is specifically described with reference to the accompanying drawing:
The present embodiment provides a kind of self-locking structures of rotary switch as shown in Figs 1-4, including the switch case 1 with inner cavity
It is rotatably set to the knob 2 at 1 top of switch case, is provided with and is used between the knob 2 and the switch case 1
The locking structure for keeping the knob 2 fixed with 1 relative position of switch case, the locking structure include:
At least one locating slot 3 is arranged on the annular end face 11 of 1 top port of switch case；
Locking piece 4 is connected by connection structure with the knob 2, and relative to the knob 2 along the axis of the knob 2
Slidably into set distance comprising at least one the positioning card base 40 extended towards the annular end face side；The locking
Part 4 with the knob to the locating slot 3 at, and push pressure outside and the positioning card base 40 driven to be caught in the positioning
It is rotated in slot 3 with limiting the knob 2.
In above embodiment, the locking structure is by the locating slot 3 being arranged on 1 annular end face of switch case and connection
Locking piece 4 on button forms, and the locking piece 4 can be along the certain distance that slides axially of knob 2, according to fixed relative to knob
The rational design of turned position between position slot 3 and knob first passes through knob and drives locking piece 4 when needing to lock the knob 2
It turns at locating slot 3, then pushes locking piece 4 so that positioning card base snaps onto locating slot 3, the benefit designed in this way exists
In, it is rotated by the location fit of positioning card base 40 and locating slot 3 with limiting knob 2, realizes the self-locking to knob,
Make knob 2 be maintained at corresponding working state to be failure to actuate, could only be rotated again after releasing this location fit, to effectively prevent
Knob is dynamic there is a phenomenon where misrouting because of external force touching or maloperation, that is, rotary switch is avoided to malfunction under abnormal operation,
Good protective action is played to rotary switch, is eliminated safe hidden trouble, ensures the safety and normal operation of control circuit, is promoted
The service performance and operational safety of rotary switch, practicability are good.
It elaborates below with reference to the specific set-up mode of Fig. 1-2, Fig. 4 to the connection structure:
The connection structure includes two sliding slots 21 that 2 periphery of knob is axially set in along the knob 2, and corresponding
It is set to the elastic arms 41 of two on the locking piece 4 and being suitable for being slidably connected in the sliding slot 21, the positioning card base
40 are respectively set the end of two elastic arms 41, and in above structure, the locking piece 4 is sliding by two elastic arms 41
Dynamic be connected to is realized in sliding slot and to be slidably matched with knob 2, and is oriented to the direction of motion of locking piece, avoids elastic arms
41 arbitrarily shake and deviate, it is ensured that positioning card base 40 can be inserted accurately when sliding axially with the elastic arms 41 along knob
Entering into locating slot 3, cooperation is reliable and stable, and it realizes to the locking effect of knob, is needing to unlock the lock fit, as long as with
Locking piece is pulled out in power separates positioning card base with locating slot.
It is arranged as a kind of specific structure, the locating slot 3 is groove structure and the corresponding positioning card base 40 is equipped with two
A, the one or both sides of the positioning card base 40 are provided with guiding surface, and this structure setting, the positioning card base 40 is by leading
Cooperate contact of incline plane to inclined-plane and the locating slot port, the positioning card base 40 can be made more easily to snap onto the positioning
In slot 3, grafting accuracy is improved, realizes that the quick location fit of the two, installation effectiveness are high.
In conjunction with shown in Fig. 1-2, it is provided between the sliding slot 21 and elastic arms 41 and limits the elastic sliding of arms 41
The position limiting structure 5 of distance, the position limiting structure 5 include the retention bead 51 being arranged in the sliding slot 21, and described in setting
In elastic arms 41 and it is suitble to accommodate the limiting slot 52 of the retention bead 51, the limiting slot 52 prolongs in the same direction with the sliding slot 21
Setting is stretched, this structure setting is resisted against in retention bead 51 to stop elastic slot 41 to continue edge by 52 one end of limiting slot
Sliding slot moves up, so that locking piece 4 be prevented to be detached from the knob 2, plays the role of limit connection.
In the present embodiment, two arc-shaped convex blocks 22 are relatively set on the two sides cell wall of the sliding slot 21, it is described
The two sides of elastic arms 41 are correspondingly arranged on S type chime 42, and the S type chime 42 is with the elastic arms 41 along institute
It states and is contacted when sliding slot 21 slides with the convex block 22 cooperation, this structure setting, when locking piece 4 and locating slot 3 form locking and match
When conjunction, the upper recess of the S type chime 42 and the convex block 22 cooperate, and unlock cooperate when, S type chimb
The lower lobes and convex block of structure cooperate, and play the role of being in clamping connection to locking piece 4 in this way, enhance connective stability, again
The location status of locking piece can be observed, can also learn whether rotary switch is in self-locking state, rationally, cooperation can for design
It leans on.
It elaborates below in conjunction with specific set-up mode of the Fig. 1 and Fig. 4 to the knob:
The knob 2 includes that rectangular driving lever portion 23 is protruded out along its axial direction, two sliding slots 21 and the driving lever
23 two sides side of portion is respectively connected with, and the locking piece 4 is adapted with the shape in the driving lever portion, and along the driving lever portion 23
Two sides side is installed into the sliding slot 21, is combined together the locking piece 4 and the knob 2 reliably, is occupied
Space is small, is slideably inserted into the self-locking that the knob 2 is realized in locating slot along the chute by locking piece, easy for installation, matches
It closes reliable.
It is further preferred that oversheath is connected with by helicitic texture in the top port of the switch case 1, it is described outer
Sheath covers in the outer peripheral portion of the knob 2, to play protection work to knob and the locking structure for being set to knob periphery
With preventing from arbitrarily being operated.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes among the protection scope created still in the utility model.
Claims (7)
1. a kind of self-locking structure of rotary switch, including switch case (1) and rotatably it is set at the top of the switch case (1)
Knob (2), which is characterized in that be provided between the knob (2) and the switch case (1) for keeping the knob
(2) locking structure fixed with the switch case (1) relative position, the locking structure include:
At least one locating slot (3) is arranged on the annular end face (11) of the switch case (1) top port；
Locking piece (4) is connected by connection structure with the knob (2), and relative to the knob (2) along the knob (2)
Axial set distance in slidably comprising towards the annular end face side extend at least one positioning card base (40)；Institute
State locking piece (4) with the knob to the locating slot (3) at, and push pressure outside and drive the positioning card base (40)
It is caught in the locating slot (3) to limit the knob (2) rotation.
2. a kind of self-locking structure of rotary switch according to claim 1, it is characterised in that: the connection structure includes along institute
Two sliding slots (21) that knob (2) is axially set in the knob (2) periphery are stated, and are correspondingly arranged on the locking piece (4)
And two elastic arms (41) for being suitable for being slidably connected in the sliding slot (21), the positioning card base (40) are respectively set two
The end of the elasticity arms (41).
3. a kind of self-locking structure of rotary switch according to claim 2, it is characterised in that: the locating slot (3) is groove
There are two structure and the corresponding positioning card base (40) set, it is oblique that the one or both sides of positioning card base (40) are provided with guiding
Face.
4. a kind of self-locking structure of rotary switch according to claim 3, it is characterised in that: the sliding slot (21) and elasticity are inserted
The position limiting structure (5) for limiting described elastic arms (41) sliding distance is provided between arm (41), the position limiting structure (5) includes
In the retention bead (51) being arranged in the sliding slot (21), and the setting elastic arms (41) and it is suitble to accommodate the limit
The limiting slot (52) of position raised (51), the limiting slot (52) and the sliding slot (21) extend in the same direction setting.
5. a kind of self-locking structure of rotary switch according to claim 4, it is characterised in that: two side channels of the sliding slot (21)
Two arc-shaped convex blocks (22) are relatively set on wall, the two sides of the elasticity arms (41) are correspondingly arranged on S type chimb knot
Structure (42), when the S type chime (42) is slided with the elastic arms (41) along the sliding slot (21) with the convex block
(22) cooperation contact.
6. a kind of self-locking structure of rotary switch according to any one of claim 2-5, it is characterised in that: the knob
It (2) include that rectangular driving lever portion (23) is protruded out along its axial direction, two sliding slots (21) and driving lever portion (23) two sides
Side is respectively connected with, and the locking piece (4) is adapted with the shape in the driving lever portion, and along the two sides of the driving lever portion (23)
It installs into the sliding slot (21) side.
7. a kind of self-locking structure of rotary switch according to claim 1, it is characterised in that: the top of the switch case (1)
Oversheath is connected with by helicitic texture in portion port, the oversheath covers in the outer peripheral portion of the knob (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920235921.4U CN209232644U (en) | 2019-02-25 | 2019-02-25 | A kind of self-locking structure of rotary switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920235921.4U CN209232644U (en) | 2019-02-25 | 2019-02-25 | A kind of self-locking structure of rotary switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209232644U true CN209232644U (en) | 2019-08-09 |
Family
ID=67511273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920235921.4U Active CN209232644U (en) | 2019-02-25 | 2019-02-25 | A kind of self-locking structure of rotary switch |
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| Country | Link |
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| CN (1) | CN209232644U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112636543A (en) * | 2020-12-22 | 2021-04-09 | 超音速智能技术(杭州)有限公司 | Control structure of small motor rotating speed and motor |
| CN113078015A (en) * | 2021-04-01 | 2021-07-06 | 深圳自媒体信息技术有限公司 | Single 90 degree rotation to position withdrawable safety switch |
-
2019
- 2019-02-25 CN CN201920235921.4U patent/CN209232644U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112636543A (en) * | 2020-12-22 | 2021-04-09 | 超音速智能技术(杭州)有限公司 | Control structure of small motor rotating speed and motor |
| CN113078015A (en) * | 2021-04-01 | 2021-07-06 | 深圳自媒体信息技术有限公司 | Single 90 degree rotation to position withdrawable safety switch |
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