CN107274637A - Rotatable engagement device and siren - Google Patents
Rotatable engagement device and siren Download PDFInfo
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- CN107274637A CN107274637A CN201710572735.5A CN201710572735A CN107274637A CN 107274637 A CN107274637 A CN 107274637A CN 201710572735 A CN201710572735 A CN 201710572735A CN 107274637 A CN107274637 A CN 107274637A
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- boss
- muscle
- groove
- main casing
- hanging plate
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
- G08B21/16—Combustible gas alarms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/64—Means for preventing incorrect coupling
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Health & Medical Sciences (AREA)
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Clamps And Clips (AREA)
Abstract
The invention provides a kind of rotatable engagement device and siren, it is related to safety alarm technical field.The rotatable engagement device includes being provided with the first boss of arc in hanging plate and main casing, main casing, and hanging plate is provided with the first groove muscle and coordinates muscle, and the first groove muscle is with coordinating muscle concentric to set and match with first boss；The siren includes electric installation and above-mentioned rotatable engagement device, electric installation includes the metal clips and metal clip being mutually matched, and metal clips is fixedly arranged in hanging plate, and metal clip is fixedly arranged in main casing, when first boss is abutted with coordinating muscle to coordinate, metal clips and metal clip are not contacted.When coordinating installation main casing and hanging plate, first boss on main casing is mutually abutted with the cooperation muscle on hanging plate, support forms chamber, metal clips and metal clip are located in the chamber and not contacted each other, so as to reduce or even avoid metal clip in assembling process to mislead with metal clips and cause the generation of electric circuit damaged condition.
Description
Technical field
The present invention relates to safety alarm technical field, more particularly to a kind of rotatable engagement device and siren.
Background technology
Ceiling type gas alarm is mainly used in the places such as factory, home or office building, flammable in environment for detecting
The concentration of the gases such as gas, smog, CO；Ceiling type gas alarm, which is generally comprised, is provided with inspection in hanging plate and main casing, main casing
Survey and peripheral hardware line accessed in device, audible alarm, alarm lamp, relay and the driving operation element such as blower fan, hanging plate, hanging plate and
Multiple metal clips for being used to connect each operation element circuit matched respectively are provided with main casing.In use, first will
Hanging plate is fixed on the furred ceiling in house, is then screwed in main casing on hanging plate, the gold on metal clips and hanging plate on main casing
Category shell fragment is matched in electrical connection, existing ceiling type gas alarm to ensure between main casing and hanging plate connection electrically one by one
The correctness of polarity, can set a pair of error prevention means on main casing and hanging plate, and one is radially outwards set on a main housing
One mistake proofing groove matched with mistake proofing boss is set on individual mistake proofing boss, hanging plate, due to mistake proofing boss and mistake proofing groove
Unique match, to realize the correctness that polarity is installed between main casing and hanging plate.
When main casing is screwed on hanging plate in existing ceiling type gas alarm, mistake proofing boss can only be played to main casing week
To it is spacing, the metal clips on main casing is easy to touch the metal clips on hanging plate, when hanging plate "on" position, easily
Cause and mislead, damage electric circuit.
That is, in existing ceiling type gas alarm, main casing with during hanging plate rotatable engagement, being unable to shape between the two
Into certain interval, the easy collision of its internal workpiece misleads impaired.
The content of the invention
It is main present in prior art to solve it is an object of the invention to provide a kind of rotatable engagement device and siren
Housing with that during hanging plate rotatable engagement, can not form certain interval between the two, and its internal workpiece easily collides mistake
The impaired technical problem of conducting.
Being provided with the rotatable engagement device that the present invention is provided, including hanging plate and main casing, the main casing is used for erector
Make the installing plate of part, the main casing is provided with the first boss of arc, and the end face of the first boss is installed higher than described
Plate；Be sequentially provided with the first groove muscle of arc and the cooperation muscle of arc along its circumference on the hanging plate, the first groove muscle with
The cooperation muscle concentric is set, and the first groove muscle forms the groove for inlaying the first boss, the cooperation muscle
End face be used for abutted with the end face of the first boss.
Further, the internal diameter of the first boss is equal on the inside of the internal diameter of the cooperation muscle, the first boss and set
There is the first connection-peg of arc, first connection-peg is set with the first boss concentric, and first connection-peg
Outer wall is not exclusively overlapped with the inwall of the first boss；The end face of first connection-peg is higher than the end of the first boss
Face.
Further, the radian of first connection-peg is more than the radian of the first boss, and the first boss
Whole inwalls are overlapped with the outer wall of first connection-peg.
Further, the second boss of arc, the second boss and the first boss are additionally provided with the main casing
Concentric is set and internal diameter is equal, and the end face of the second boss and the end face of the first boss are coplanar, the second boss
It is located at the relative both sides in the center of circle with the first boss；The hanging plate is provided with the second groove muscle, the second groove muscle and institute
State cooperation muscle concentric to set, the second groove muscle forms the groove for inlaying the second boss；The cooperation muscle bag
Including the first of concentric setting coordinates muscle and second to coordinate muscle, and described first coordinates muscle and the described second internal diameter phase for coordinating muscle
In the first groove muscle, the first cooperation muscle, the week of the second groove muscle, the second cooperation muscle along the hanging plate
To arranging successively, and described first coordinates the position of muscle and the first groove muscle corresponding with the first boss, and described the
Two coordinate muscle and the second groove muscle corresponding with the position of the second boss.
Further, the second connection-peg of arc, second connection-peg and institute are additionally provided with the inside of the second boss
The setting of second boss concentric is stated, and the outer wall of second connection-peg is not exclusively overlapped with the inwall of the second boss；Institute
The end face for stating the second connection-peg is higher than the end face of the second boss.
Further, the radian of the second boss is less than the radian of the first boss, the arc of the second groove muscle
Radian of the degree less than the first boss.
Further, the external diameter of the second boss is more than the external diameter of the first boss.
It is another object of the present invention to provide a kind of siren, including electric installation and above-mentioned rotatable engagement device,
The electric installation includes metal clips and metal clip, and the metal clips is fixedly arranged in the hanging plate, and the metal clip is fixed
In on the installing plate of the main casing, the metal clip matches with the metal clips；First boss on the main casing
When being abutted with the cooperation muscle cooperation on the hanging plate, the metal clips and the metal clip are not contacted, and the siren has upper
State all technique effects of rotatable engagement device.
Further, the radian of the first groove muscle is more than the radian of the first boss, the second groove muscle
Radian is more than the radian of the second boss.
Further, the metal clips is six, and six metal clips are uniform point in a ring in the hanging plate
Cloth, and the annular center of circle with it is described cooperation muscle the center of circle overlap；The metal clip also mutually should be six.
Rotatable engagement device and siren of the present invention have the beneficial effect that：
The present invention provides a kind of rotatable engagement device and siren, wherein, rotatable engagement device includes being used for installment work
It is higher than the first boss of installing plate in the main casing of part and the hanging plate for connecting extraneous wire, main casing provided with end face, hangs
Plate is provided with the cooperation muscle for being used for abutting with first boss and completes what main casing coordinated with hanging plate for inlaying first boss
First groove muscle；Wherein, siren includes the metal clip being respectively arranged on the main casing of rotatable engagement device and is installed on extension
Metal clips in plate, in use, the installing plate side of main casing is provided with metal clip, opposite side is provided with multiple work members
Part, each operation element is corresponded with metal clip and electrically connected, and the center of circle of main casing first boss is aligned on hanging plate and coordinates muscle
The center of circle, the first boss in main casing is abutted with the cooperation muscle on hanging plate, the end face of first boss, which is higher than, to be used to install gold
Belong to the surface of the installing plate of folder, first boss forms certain altitude with coordinating muscle interaction between support main casing and hanging plate
Chamber, metal clip and metal clips are located in the chamber not to be contacted each other, rotates main casing then around the center of circle, first is convex
Platform is along coordinating the curved end of muscle to slide, until first boss reaches the position of the first groove muscle and falls from the end face for coordinating muscle
Under be embedded in completely the first groove muscle formation groove in, metal clip is therewith close to metal clips, and metal clip is straight with metal clips
Contact or the metal clips being rotated further on main casing, hanging plate are caught on main casing in metal clip, complete main casing and hanging plate
Mating connection.
When coordinating installation main casing and hanging plate, the first boss on main casing is mutually abutted with the cooperation muscle on hanging plate, is propped up
Support forms chamber, and metal clips and metal clip are located in the chamber and do not contacted each other, when the metal clip on main casing with
When metal clips position on hanging plate is corresponding, first boss, which is fallen, to be embedded in the groove of the first groove muscle formation, metal elastic
Piece contacts connection with metal clip, completes not connect between metal clip and metal clips in the assembling of main casing and hanging plate, assembling process
Touch, so as to reduce or even avoid metal clip in assembling process to mislead with metal clips and cause the hair of electric circuit damaged condition
It is raw.
In addition, in main casing and hanging plate assembling process, because the cooperation of first boss and the first groove muscle is limited so that main
The position that housing and hanging plate complete to install is certain, and the metal clips on hanging plate can only metal corresponding with position on main casing
Folder is connected, so that it is guaranteed that the installation polarity on siren between metal clips and metal clip, further reduce metal clip with
Metal clips misleads the damage to electric circuit.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the three dimensional structure diagram of siren provided in an embodiment of the present invention；
Fig. 2 is the configuration schematic diagram of siren in Fig. 1；
Fig. 3 is the internal structure schematic diagram of main casing in Fig. 1；
Fig. 4 is the internal structure schematic diagram of hanging plate in Fig. 1.
Icon：1- hanging plates；2- main casings；3- metal clips；4- metal clips；11- the first groove muscle；12- second
Groove muscle；13- first coordinates muscle；14- second coordinates muscle；21- first boss；22- second boss；The grafting of 23- first
Head；The connection-pegs of 24- second.
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify description, rather than indicate or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second " are only
For descriptive purposes, and it is not intended that indicating or implying relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
The present embodiment provides a kind of rotatable engagement device, as shown in figs 2-4, including hanging plate 1 and main casing 2, main casing
The installing plate for installment work part is provided with 2, main casing 2 is provided with the first boss 21 of arc, the end of first boss 21
Face is higher than installing plate；On hanging plate 1 the first groove muscle 11 of arc and the cooperation muscle of arc, the first groove are sequentially provided with along its circumference
Muscle 11 is with coordinating muscle concentric to set, and the first groove muscle 11 forms the groove for inlaying first boss 21, coordinates the end face of muscle
Abutted for the end face with first boss 21.
The present embodiment also provides a kind of siren, as Figure 1-Figure 4, including electric installation and above-mentioned rotatable engagement dress
Put, electric installation includes metal clips 3 and metal clip 4, metal clips 3 is fixedly arranged in hanging plate 1, and metal clip 4 is fixedly arranged on main casing 2
Installing plate on, metal clip 4 matches with metal clips 3；First boss 21 on main casing 2 is matched somebody with somebody with the cooperation muscle on hanging plate 1
When closing abutting, metal clips 3 and the metal clip 4 are not contacted.
Rotatable engagement device and siren that the present embodiment is provided, wherein, rotatable engagement device includes being used for installment work
It is higher than the first boss of installing plate in the main casing 2 of part and the hanging plate 1 for connecting extraneous wire, main casing 2 provided with end face
21, hanging plate 1 be provided be used for the cooperation muscle that is abutted with first boss 21 and for inlay first boss 21 complete main casing 2 and
The first groove muscle 11 that hanging plate 1 coordinates；Wherein, siren includes the gold being respectively arranged on the main casing 2 of rotatable engagement device
Category folder 4 and the metal clips 3 being installed in hanging plate 1, in use, the installing plate side of main casing 2 is provided with metal clip 4, it is another
Side is provided with multiple operation elements, and each operation element is corresponded with metal clip 4 and electrically connected, by the first boss 21 of main casing 2
Center of circle alignment hanging plate 1 on coordinate the center of circle of muscle, the first boss 21 in main casing 2 is abutted with the cooperation muscle on hanging plate 1, the
The end face of one boss 21 is higher than the surface for the installing plate for being used to install metal clip 4, and first boss 21 is with coordinating muscle interaction, branch
The chamber that certain altitude is formed between main casing 2 and hanging plate 1 is supportted, metal clip 4 and metal clips 3 are located in the chamber each other
Do not contact, rotate main casing 2 then around the center of circle, first boss 21 is along coordinating the curved end of muscle to slide, until first boss 21
Reach the position of the first groove muscle 11 and the groove for being embedded in the formation of the first groove muscle 11 completely is fallen from the end face for coordinating muscle
Interior, metal clip 4 is therewith close to metal clips 3, and metal clip 4 directly contacts or be rotated further main casing 2, hanging plate 1 with metal clips 3
On metal clips 3 be caught on main casing 2 in metal clip 4, complete the mating connection of main casing 2 and hanging plate 1.
When coordinating installation main casing 2 and hanging plate 1, the first boss 21 on main casing 2 is mutually supported with the cooperation muscle on hanging plate 1
Connect, support forms chamber, and metal clips 3 and metal clip 4 are located in the chamber and do not contacted each other, when on main casing 2
When metal clip 4 is corresponding with the position of metal clips 3 on hanging plate 1, first boss 21, which is fallen, to be embedded in the first groove muscle 11 and is formed
Groove in, metal clips 3 contacts connection with metal clip 4, completes metal clip in the assembling of main casing 2 and hanging plate 1, assembling process
Do not contacted between 4 and metal clips 3, so as to reduce or even avoid metal clip 4 in assembling process to mislead and lead with metal clips 3
Send a telegraph pneumoelectric path loss bad the occurrence of.Need exist for explanation, the height for the chamber that first boss 21 and cooperation muscle are supported
From first boss 21 and coordinate the height of muscle to together decide on, it is specific highly can be according to the height of installment work part in chamber
To set.
In addition, in main casing 2 and the assembling process of hanging plate 1, because the cooperation of the groove muscle 11 of first boss 21 and first is limited,
So that the position that main casing 2 and hanging plate 1 complete to install is certain, the metal clips 3 on hanging plate 1 can only be upper with main casing 2
Put corresponding metal clip 4 to be connected, so that it is guaranteed that the installation polarity on siren between metal clips 3 and metal clip 4, enters one
Step reduces metal clip 4 and metal clips 3 and misleaded the damage to electric circuit.In addition, the setting of first boss 21 and cooperation muscle,
When coordinating installation main casing 2 and hanging plate 1, it is not necessary to power down process is carried out to hanging plate 1, so that reduce causes because cutting off the electricity supply
The generation of event of data loss, can effectively mitigate project installation maintenance task amount.
Specifically, when coordinating the center of circle of muscle on the center of circle alignment hanging plate 1 of first boss 21 on main casing 2, in main casing 2
First boss 21 can be abutted with the cooperation muscle on hanging plate 1, and the internal diameter of first boss 21 needs to be less than the external diameter for coordinating muscle, first
The external diameter of boss 21 needs to be more than the internal diameter for coordinating muscle；First boss 21 can be embedded in the groove of the first groove muscle 11 formation
Interior, the internal diameter of the first groove muscle 11 can be equal to the external diameter of first boss 21, and the radian of the first groove muscle 11 is according to actual mutual
The operation element of cooperation can be equal to or more than the radian of first boss 21.
In the present embodiment, as shown in figure 3, the internal diameter of first boss 21 can be equal to the internal diameter for coordinating muscle, first boss 21
Inner side be provided with the first connection-peg 23 of arc, the first connection-peg 23 is set with the concentric of first boss 21, and the first connection-peg
23 outer wall is not exclusively overlapped with the inwall of first boss 21；The end face of first connection-peg 23 is higher than the end face of first boss 21.
First connection-peg 23 and the concentric of first boss 21 are set, and the outer wall of the inwall of first boss 21 and the first connection-peg 23 has weight
Part is closed, then illustrates the external diameter of the first connection-peg 23 and the internal diameter of first boss 21, coordinate the internal diameter of muscle equal, the first grafting
When assembling main casing 2 and hanging plate 1, the first connection-peg 23 is inserted with coordinating the arc inner wall of muscle to match for first 23 arc outer wall
In the deep-slotted chip breaker for entering to coordinate muscle formation, the first connection-peg 23, first boss 21 and cooperation muscle three concentric coordinate, and first inserts
The arc inner wall of joint 23 is with coordinating the arc outer wall of muscle to fit, and first boss 21 is stuck on cooperation muscle, the end of first boss 21
Face is with coordinating the end face of muscle to abut, when rotating main casing 2, and the outer wall edge of the first connection-peg 23 coordinates the inwall of muscle to slide, limitation
First boss 21 is slided around the center of circle on the end face for coordinating muscle, is embedded in until falling in the groove of the first groove muscle 11 formation.
The setting of first connection-peg 23 may insure the rotation process of first boss 21 around the equidistant rotation in the center of circle, so as to reduce
Drop or can not be subsequently embedded in the groove of the first groove muscle 11 formation on muscle from coordinating in the rotation process of first boss 21, and
The occurrence of influenceing the cooperation between main casing 2 and hanging plate 1 to install, or even electric circuit can be damaged.
In the present embodiment, as shown in figure 3, the radian of the first connection-peg 23 is more than the radian of first boss 21, and first is convex
Whole inwalls of platform 21 are overlapped with the outer wall of the first connection-peg 23.First boss 21 is arranged at the outer wall of the first connection-peg 23, the
The radian of one connection-peg 23 is more than the radian of first boss 21, first, and the insertion of the first connection-peg 23 coordinates in the groove of muscle formation
With coordinating the inwall contact area of muscle larger, in the rotary course of main casing 2, coordinate muscle more smart to the guiding of the first connection-peg 23
Really, it is and then more accurate to the guiding of first boss 21, to ensure the rotation position precision of first boss 21；Secondly, when first
Have been detached from coordinating in the rotation process of boss 21 muscle end face but it is also completely not corresponding with 11 pairs of the first groove muscle when the first connection-peg
23 parts for being longer than first boss 21 are still oriented to coordinating muscle to coordinate to first boss 21, so as to further improve first
The precision that the groove muscle 11 of boss 21 and first coordinates.
In the present embodiment, as shown in figure 3, the second boss 22 of arc is additionally provided with main casing 2, second boss 22 and first
The concentric of boss 21 is set and internal diameter is equal, and the end face and the end face of first boss 21 of second boss 22 are coplanar, second boss 22
It is located at the relative both sides in the center of circle with first boss 21；Hanging plate 1 is provided with the second groove muscle 12, and the second groove muscle 12 is with coordinating muscle same
The center of circle is set, and the second groove muscle 12 forms the groove for inlaying second boss 22；Muscle is coordinated to include concentric is set first
Muscle 13 and second is coordinated to coordinate muscle 14, first coordinates muscle 13 to coordinate the internal diameter of muscle 14 equal with described second, the first groove muscle 11,
First cooperation muscle 13, the second groove muscle 12, second coordinate muscle 14 arranged successively along circumference of hanging plate 1, and first cooperation muscle 13 and
The position of first groove muscle 11 is corresponding with first boss 21, and second coordinates muscle 14 and the second groove muscle 12 and second boss
22 position is corresponding.When coordinating installation main casing 2 and hanging plate 1, the first connection-peg 23 is inserted what the first cooperation muscle 13 was formed
In groove, the end face of first boss 21 is abutted with the end face of the first cooperation muscle 13, and the end face of second boss 22 and second coordinates muscle
14 end face is abutted, and first boss 21 and second boss 22 coordinate muscle 14 to act on simultaneously with the first cooperation muscle 13 and second respectively,
Common branch overhangs the chamber for accommodating metal clip 4 and metal clips 3, with the rotation of main casing 2, first boss 21 and second
Boss 22 is fallen respectively to be embedded in the groove of the first groove muscle 11 and the formation of the second groove muscle 12, subsequently completes the He of metal clip 4
The mating connection of metal clips 3.
First boss 21 and second boss 22 are located in the relative both sides in the center of circle, rotation process, while to the phase of main casing 2
Both sides are supported, so as to effectively reduce the single boss support easy run-off the straight of main casing 2 and cause metal clip 4 and metal
Shell fragment 3 misleads, the occurrence of damaging electric circuit.
As shown in Figure 3 and Figure 4, shown in the present embodiment, the inner side of second boss 22 is also provided with the second of arc and inserted
Joint 24, the second connection-peg 24 is set with the concentric of second boss 22, and the outer wall and second boss 22 of the second connection-peg 24
Inwall is not exclusively overlapped；The end face of second connection-peg 24 is higher than the end face of second boss 22.When assembling main casing 2 with hanging plate 1, push away
The first connection-peg 23 and the second connection-peg 24 on dynamic main casing 2, main casing 2 can match somebody with somebody with the first cooperation muscle 13, second respectively
Close muscle 14 and coordinate grafting, the first connection-peg 23 and the common rotational travel to main casing 2 of the second connection-peg 24 are oriented to, and enter one
The turned position precision of step enhancing first boss 21 and second boss 22.
In the present embodiment, as shown in Figure 3 and Figure 4, the radian of second boss 22 can be less than the radian of first boss 21, the
The radian of two groove muscle 12 is less than the radian of first boss 21.First connection-peg 23, the second connection-peg 24 external diameter it is equal, first
Muscle 13, second is coordinated to coordinate the internal diameter of muscle 14 equal, therefore the first connection-peg 23, the second connection-peg 24 and the first cooperation muscle 13,
Second cooperation muscle 14 can coordinate rotation, and first boss 21 is different with the radian of second boss 22, and the second groove muscle 12
Radian is less than the radian of first boss 21, therefore in the first connection-peg 23, the rotation process of the second connection-peg 24, first boss 21
It can fall and be embedded in the groove of the first groove muscle 11 formation, accordingly, second boss 22 can only fall that to be embedded in second recessed
In the groove of the formation of groove muscle 12, so as to reduce in rotation process, because first boss 21 falls into the second groove muscle 12, second boss
22 fall into the groove of the first groove muscle 11 formation and cause metal clip 4 and the polarity setup error of metal clips 3, and damage electrically electric
Even cause the generation of dangerous situation in road.
In the present embodiment, as shown in figure 3, the external diameter of second boss 22 can be more than the external diameter of first boss 21.First is recessed
The internal diameter of groove muscle 11 and the external diameter of first boss 21 match, and the external diameter of second boss 22 is more than the external diameter of first boss 21, because
This second boss 22 can not be embedded in the groove of the first groove muscle 11 formation, further reduced in rotation process, due to first
Boss 21 fall into the second groove muscle 12, second boss 22 fall into the first groove muscle 11 formation groove in cause metal clip 4 with gold
Belong to the polarity setup error of shell fragment 3, and damage electric circuit or even cause the generation of dangerous situation.
Specifically, in the present embodiment, the radian of the first groove muscle 11 is more than the radian of first boss 21, the second groove muscle 12
Radian be more than second boss 22 radian.For the mated condition between different electric installations, the first groove muscle 11 and
Two groove muscle 12 can set different radians, specifically, for the clamping of metal clip 4 and metal clips 3 in the present embodiment
Mode, the radian of the first groove muscle 11 is more than the radian of first boss 21, and the radian of the second groove muscle 12 is more than second boss 22
Radian, with the rotation of main casing 2, first boss 21 and second boss 22 fall fall into the first groove muscle 11 and second respectively
In the groove of the formation of groove muscle 12, now the metal clip 4 on main casing 2 is in not connected shape with the metal clips 3 on hanging plate 1
State, is rotated further main casing 2, and first boss 21 and second boss 22 are formed in the first groove muscle 11 and the second groove muscle 12 respectively
Groove in rotate, until reach groove ends, metal clip 4, which is rotated, is caught in metal clips 3 in intermediate plate, complete main casing 2 with
The mating connection of hanging plate 1.
In the present embodiment, as shown in Figure 3 and Figure 4, metal clips 3 can be six, and six metal clips 3 are in hanging plate 1
It is uniformly distributed in a ring, and the center of circle of annular is with coordinating the center of circle of muscle to overlap；Metal clip 4 also mutually should be six.First coordinates muscle
13rd, second coordinates muscle 14 to pass through the rotation of the first connection-peg 23 and the second connection-peg 24 limitation first boss 21 and second boss 22
The rotational travel of stroke, the first groove muscle 11 and the second groove muscle 12 limitation first boss 21 and second boss 22, first boss
21 and second boss 22 around its center of circle, i.e. coordinate muscle the center of circle rotate, therefore, in the rotation process of main casing 2, divide in a ring
The six groups of metal clips 3 and metal clip 4 of cloth can coordinate clamping simultaneously, complete the work being electrically connected on six metal clips 4
The electrical connection of element and the external device of respective metal shell fragment 3 on hanging plate 1.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To be modified to the technical scheme described in previous embodiment, or which part or all technical characteristic are equal
Replace；And these modifications or replacement, the essence of appropriate technical solution is departed from the model of technical scheme of the embodiment of the present invention
Enclose.
Claims (10)
1. it is provided with a kind of rotatable engagement device, it is characterised in that including hanging plate (1) and main casing (2), the main casing (2)
For the installing plate of installment work part, the main casing (2) is provided with the first boss (21) of arc, the first boss
(21) end face is higher than the installing plate；On the hanging plate (1) along its circumference be sequentially provided with arc the first groove muscle (11) and
The cooperation muscle of arc, the first groove muscle (11) is set with the cooperation muscle concentric, and the first groove muscle (11) is formed
Groove for inlaying the first boss (21), the end face of the cooperation muscle is used to support with the end face of the first boss (21)
Connect.
2. rotatable engagement device according to claim 1, it is characterised in that the internal diameter of the first boss (21) is equal to institute
The internal diameter for coordinating muscle is stated, the inner side of the first boss (21) is provided with the first connection-peg (23) of arc, first connection-peg
(23) set with the first boss (21) concentric, and the outer wall and the first boss (21) of first connection-peg (23)
Inwall not exclusively overlap；The end face of first connection-peg (23) is higher than the end face of the first boss (21).
3. rotatable engagement device according to claim 2, it is characterised in that the radian of first connection-peg (23) is more than
The radian of the first boss (21), and whole inwalls of the first boss (21) and the outer wall of first connection-peg (23)
Overlap.
4. rotatable engagement device according to claim 3, it is characterised in that be additionally provided with arc on the main casing (2)
Second boss (22), the second boss (22) is set with the first boss (21) concentric and internal diameter is equal, and described second
The end face of boss (22) and the end face of the first boss (21) are coplanar, the second boss (22) and the first boss (21)
Positioned at the relative both sides in the center of circle；
The hanging plate (1) is provided with the second groove muscle (12), and the second groove muscle (12) is set with the cooperation muscle concentric,
The second groove muscle (12) forms the groove for inlaying the second boss (22)；
Described to coordinate muscle to include the first cooperation muscle (13) and the second cooperation muscle (14) that concentric is set, described first coordinates muscle
(13) coordinate the internal diameter of muscle (14) equal with described second, the first groove muscle (11), described first coordinate muscle (13), described
Second groove muscle (12), the second cooperation muscle (14) are arranged successively along the circumference of the hanging plate (1), and described first coordinates muscle
(13) and the first groove muscle (11) position it is corresponding with the first boss (21), described second coordinates muscle (14) and institute
State the second groove muscle (12) corresponding with the position of the second boss (22).
5. rotatable engagement device according to claim 4, it is characterised in that be additionally provided with the inside of the second boss (22)
The second connection-peg (24) of arc, second connection-peg (24) and the second boss (22) concentric are set, and described the
The outer wall of two connection-pegs (24) is not exclusively overlapped with the inwall of the second boss (22)；The end face of second connection-peg (24)
Higher than the end face of the second boss (22).
6. rotatable engagement device according to claim 5, it is characterised in that the radian of the second boss (22) is less than institute
The radian of first boss (21) is stated, the radian of the second groove muscle (12) is less than the radian of the first boss (21).
7. rotatable engagement device according to claim 6, it is characterised in that the external diameter of the second boss (22) is more than institute
State the external diameter of first boss (21).
8. a kind of siren, it is characterised in that including the rotatable engagement any one of electric installation and claim 4-7
Device, the electric installation includes metal clips (3) and metal clip (4), and the metal clips (3) is fixedly arranged on the hanging plate (1)
Interior, the metal clip (4) is fixedly arranged on the installing plate of the main casing (2), the metal clip (4) and the metal clips (3)
Match；When first boss (21) on the main casing (2) is abutted with the cooperation muscle cooperation on the hanging plate (1), the gold
Category shell fragment (3) and the metal clip (4) are not contacted.
9. siren according to claim 8, it is characterised in that the radian of the first groove muscle (11) is more than described the
The radian of one boss (21), the radian of the second groove muscle (12) is more than the radian of the second boss (22).
10. siren according to claim 8, it is characterised in that the metal clips (3) is six, six gold
Category shell fragment (3) is uniformly distributed in a ring in the hanging plate (1), and the annular center of circle and the center of circle weight of the cooperation muscle
Close；The metal clip (4) also mutually should be six.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710572735.5A CN107274637B (en) | 2017-07-14 | 2017-07-14 | Rotating matching device and alarm |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710572735.5A CN107274637B (en) | 2017-07-14 | 2017-07-14 | Rotating matching device and alarm |
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| CN107274637A true CN107274637A (en) | 2017-10-20 |
| CN107274637B CN107274637B (en) | 2023-01-31 |
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| CN107274637B (en) | 2023-01-31 |
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