A kind of anti-theft device
Technical field
The present invention relates to a kind of anti-theft devices.
Background technique
Currently, antitheft chain apparatus is generally fitted on the door in hotel, the door chain being currently installed on the door of hotel
Device generally comprises the first fixing seat and the second fixing seat, and the first fixing seat is fixed on doorframe, and the second fixing seat is fixed on door
On body, chain is fixedly connected in the first fixing seat, chain is provided with lock, the second fixing seat far from one end of the first fixing seat
On be then provided with locked groove for locking with snap fit, but this kind of door chain is when in use, in order to latch into
Entering into locked groove, the length of chain is generally longer, after door lock is pried open, since the length of chain is longer, so, door
It is still able to certain angle that is opened, so that criminal is still able to abolish anti-theft device, there are biggish security risks.
Summary of the invention
To solve the above-mentioned problems, the present invention devises a kind of anti-theft device, the anti-theft device when in use, in hinged seat
It is fixed with doorframe, after fixing seat is fixed with door body, connecting rod and retaining mechanism between hinged seat and fixing seat do not have extra length
Degree is for door opening, and so, the present invention improves anti-theft effect compared with traditional anti-theft device.
The object of the present invention is achieved like this:
Anti-theft device of the invention, including connecting rod, for the hinged seat fixed with doorframe and for consolidating with what door body was fixed
Reservation, connecting rod one end and hinged seat are rotatablely connected, and the other end of connecting rod is fixed with the locking machine for locking with fixing seat
Structure, hinged seat include bottom plate and the pin shaft that is arranged in the middle part of bottom plate upper surface, and one end that connecting rod is located at hinged seat is provided with rotation
Set, turning set are rotatably mounted around outside pin shaft, and the threaded upper ends of pin shaft are connected with upper cover, and the upper surface edge of bottom plate is set
It is equipped with limited post, the height of limited post is identical at a distance from the upper surface in small end face to bottom plate, and limited post is used for the company of limitation
The rotational angle and support link of bar are provided with arc bump on the upper surface of fixing seat, and the upper end of arc bump is provided with can
For the opening of retaining mechanism disengaging, it is provided with the arc groove that can be locked with retaining mechanism on the inner wall of arc bump, is locked
Mechanism includes upper end opening and is internally provided with the support base of cavity and is threaded in the cover board of support base upper end, support base
The bolt mechanism for locking with arc groove is provided in two side walls, support base is internally provided with for driving bolt
Mechanism is so that the driving mechanism that bolt mechanism and arc groove are locked or unlocked.
Anti-theft device of the invention, wherein each bolt mechanism includes inserted link, is provided with annular on the lateral wall of inserted link
Chimb is provided with the sliding slot for annular nib sliding on the two sides inner wall of support base, is threadedly coupled on the inner end of sliding slot
There is the end cap for blocker ring shape chimb to prevent annular nib from deviating from from sliding slot, the outer end activity of inserted link runs through support base
After be inserted in arc groove, the inner end activity of inserted link extendes back outside for end cap through end cap, on the inside of annular nib and support base
Inserted link outer cover between wall is equipped with for driving annular nib to move inward so that inserted link is detached from the spring of arc groove;By adopting
After this structure, after inserted link is inserted into arc groove, the locking to support base and fixing seat can be realized, in inserted link from arc
When exiting in shape slot, the unlock to support base and fixing seat can be realized.
Anti-theft device of the invention, wherein a pair of of sliding block is provided on the lateral wall of annular nib, on the inner sidewall of sliding slot
It is provided with the slideway that can cooperate sliding with sliding block in inserted link sliding;After by using this structure, it can be realized to convex annular
The circumferential limit on side so when inserted link is mobile, can be avoided the phenomenon that inserted link circumferentially rotates.
Anti-theft device of the invention, wherein driving mechanism includes that can slide up and down to the limit being connected to inside support base
Block is provided with the limited post with support base coaxial arrangement on the lower end surface of limited block, be provided on the interior bottom of support base for
The elongate slots that limited post slides in the vertical direction are provided with the handle with support base coaxial arrangement, lid on the upper surface of limited block
The elongated hole slided in the vertical direction for handle is provided in plate, handle upper end activity is extended back through elongated hole for elongated hole
Outside, limited block includes the big end being located above and underlying small end, formed between big end and small end by up to
Under gradually to the inclined-plane of contract, first that the inner end partial insertion for inserted link is provided on the two sides outer wall of big end inserts
Slot, the second slot of the inner end partial insertion for inserted link is provided on the two sides outer wall of small end, and the inner end of inserted link is
The inner sidewall shape of individual dome-like structures, the inner sidewall shape of the first slot and the second slot with the inner end shape phase of inserted link
Match;After by using this structure, when limited block moves down, i.e., so that after the inner end of inserted link is inserted into the first slot,
Inserted link is inserted into arc groove, so, can be realized the locking to support base and fixing seat;When limited block is to moving up
When dynamic, i.e., so that inserted link can be exited from arc groove after the inner end of inserted link is inserted into the second slot, so, energy
Enough unlocks realized to support base and fixing seat.
Anti-theft device of the invention, wherein guiding can be cooperated with retaining mechanism by being provided on two ends of arc bump
To facilitate retaining mechanism to enter the arc guide surface in fixing seat;By the setting of arc guide surface, retaining mechanism can be with arc
Shape guide surface cooperation guiding, so, retaining mechanism can be entered more easily in fixing seat.
Anti-theft device of the invention, wherein several are provided in bottom plate in circumferentially distributed bolt hole;Pass through bolt hole
Setting, screw pass through bolt hole after, hinged seat can be conveniently fixed on doorframe.
Anti-theft device of the invention, wherein be provided with a pair of of counter sink on the interior bottom of fixing seat;Pass through setting for counter sink
It sets, after screw passes through counter sink, easily fixing seat can be fixed in door body.
Anti-theft device of the invention, wherein connecting rod is fixed far from one end of hinged seat by bolt and support base;By adopting
After this structure, the fixing intensity of connecting rod and support base can be improved.
After the present invention is by using above structure, when in use, fixed in hinged seat and doorframe, fixing seat is fixed with door body
Afterwards, the connecting rod between hinged seat and fixing seat and retaining mechanism do not have extra length for door opening, so, this hair
It is bright compared with traditional anti-theft device, improve anti-theft effect.
Detailed description of the invention
Fig. 1 is overlooking structure diagram of the invention;
Fig. 2 is the overlooking structure diagram of fixing seat;
Fig. 3 is the schematic cross-sectional view of fixing seat;
Fig. 4 is that hinged seat removes the overlooking structure diagram after upper cover;
Fig. 5 is the schematic cross-sectional view of retaining mechanism;
Fig. 6 is the schematic cross-sectional view after connecting rod is connect with hinged seat;
Fig. 7 is the schematic cross-sectional view after retaining mechanism and fixing seat locking.
Specific embodiment
The specific embodiment of the invention is described in further detail with reference to the accompanying drawing.
A kind of anti-theft device, including connecting rod 1, for the hinged seat 2 fixed with doorframe and for the fixation fixed with door body
Seat 3,1 one end of connecting rod and hinged seat 2 are rotatablely connected, and the other end of connecting rod 1 is fixed with the locking for locking with fixing seat 3
Mechanism, hinged seat 2 include bottom plate 21 and the pin shaft 22 being arranged in the middle part of 21 upper surface of bottom plate, and connecting rod 1 is located at the one of hinged seat 2
End is provided with turning set 11, and turning set 11 is rotatably mounted around outside pin shaft 22, and the threaded upper ends of pin shaft 22 are connected with upper cover
23, the upper surface edge of bottom plate 21 is provided with limited post 24, the height of limited post 24 and 1 upper surface of connecting rod to the upper end of bottom plate
The distance in face is identical, and limited post 24 is used for the rotational angle and support link 1 of limiting rod 1, is arranged on the upper surface of fixing seat 3
There is an arc bump 31, the opening that the upper end of arc bump 31 is provided with for retaining mechanism disengaging, on the inner wall of arc bump 31
It is provided with the arc groove 32 that can be locked with retaining mechanism, retaining mechanism includes upper end opening and the branch for being internally provided with cavity
Support seat 41 and it is threaded in the cover board 42 of 41 upper end of support base, is provided with and is used for and arc in the two side walls of support base 41
The bolt mechanism that shape slot 32 locks, support base 41 are internally provided with for driving bolt mechanism so that bolt mechanism and arc
The driving mechanism of the locking of slot 32 or unlock;Each bolt mechanism includes inserted link 51, is provided with annular on the lateral wall of inserted link 51
Chimb 511, is provided with the sliding slot 411 slided for annular nib 511 on the two sides inner wall of support base 41, sliding slot 411 it is interior
The end cap 52 for stopping annular nib 511 to prevent annular nib 511 from deviating from from sliding slot 411 is threaded on end,
The outer end activity of inserted link 51 is inserted in arc groove 32 after running through support base 41, and the inner end activity of inserted link 51 runs through end cap 52
It extendes back outside for end cap 52,51 outer cover of inserted link between 41 inner sidewall of annular nib 511 and support base, which is equipped with, is used for drive ring
Shape chimb 511 moves inward so that inserted link 51 is detached from the spring 53 of arc groove 32;After by using this structure, it is inserted into inserted link
After into arc groove, the locking to support base and fixing seat can be realized, when inserted link is exited from arc groove, can be realized pair
The unlock of support base and fixing seat;A pair of of sliding block 512 is provided on the lateral wall of annular nib 511, on the inner sidewall of sliding slot 411
It is provided with the slideway 412 that can cooperate sliding with sliding block 512 when inserted link 51 slides;After by using this structure, it can be realized
Circumferential direction limit to annular nib so when inserted link is mobile, can be avoided the phenomenon that inserted link circumferentially rotates;It drives
Motivation structure includes that can slide up and down to the limited block 43 being connected to inside support base 41, is provided on the lower end surface of limited block 43
The limited post 431 being coaxially disposed with support base 41 is provided with for limited post 431 in the vertical direction on the interior bottom of support base 41
The elongate slots 413 of sliding, are provided with the handle 432 being coaxially disposed with support base 41 on the upper surface of limited block 43, in cover board 42
It is provided with the elongated hole 421 slided in the vertical direction for handle 432,432 upper end activity of handle is stretched out after running through elongated hole 421
In outside elongated hole 421, limited block 43 includes the big end 433 being located above and underlying small end 434, big end 433
It is formed between small end 434 from top to bottom gradually to the inclined-plane of contract 435, is provided on the two sides outer wall of big end 433
For the first slot 436 of the inner end partial insertion of inserted link 51, it is provided on the two sides outer wall of small end 434 for inserted link 51
Inner end partial insertion the second slot 437, the inner end of inserted link 51 is individual dome-like structures, the inner sidewall of the first slot 436
Shape and the inner sidewall shape of the second slot 437 match with the inner end shape of inserted link 51;After by using this structure, limit
Position block is when moving down, i.e., so that inserted link is inserted into arc groove after the inner end of inserted link is inserted into the first slot, this
Sample one can be realized the locking to support base and fixing seat;When limited block moves up, i.e., so that the inner end of inserted link is inserted
After entering into the second slot, inserted link can be exited from arc groove, so, can be realized the solution to support base and fixing seat
Lock;Being provided on two ends of arc bump 31 can cooperate guiding to facilitate retaining mechanism to enter fixing seat with retaining mechanism
Arc guide surface 33 in 3;By the setting of arc guide surface, retaining mechanism can cooperate with arc guide surface to be oriented to, and such one
Come, retaining mechanism can be entered more easily in fixing seat;Several are provided in bottom plate 21 in circumferentially distributed bolt hole
25;Hinged seat can be conveniently fixed on doorframe after screw passes through bolt hole by the setting of bolt hole;Fixing seat 3
Interior bottom on be provided with a pair of of counter sink 34;By the setting of counter sink, after screw passes through counter sink, can easily by
Fixing seat is fixed in door body;The one end of connecting rod 1 far from hinged seat 2 is fixed by bolt 12 and support base 41;By using this
After kind structure, the fixing intensity of connecting rod and support base can be improved;In using the present invention, when it is required that retaining mechanism and solid
When reservation is locked, pivot link and retaining mechanism first enters retaining mechanism in fixing seat, then pulls handle downwards
Limited block is driven to move down, after limited block moves down, the inner end of inserted link is inserted into the first slot, limited block energy
Enough driving inserted links are displaced outwardly, and after inserted link is inserted into arc groove, be can be realized the locking to retaining mechanism and fixing seat, are being locked
After tight mechanism and fixing seat locking, the locking to door body can be realized;When it is required that retaining mechanism and fixing seat unlock, to
Upper driving handle, handle drive limited block to move up, and after limited block moves up, inserted link inwardly moves under the action of the spring
Dynamic, the inner end of inserted link is inserted into the second slot, and so, limited block can be exited from arc groove, to realize
Unlock to retaining mechanism and fixing seat, then turn left connecting rod and retaining mechanism, so that connecting rod and limited post offset,
So, that is, the unlock to door body is realized.
It should be noted that in the embodiment above, as long as reconcilable technical solution can carry out permutation and combination, this
Field technical staff can be according to the exhaustive all possibility of mathematical knowledge of permutation and combination, and therefore, the present invention is no longer to permutation and combination
Technical solution afterwards is illustrated one by one, but it is understood that presently disclosed for the technical solution after permutation and combination.
It should be noted that listed above is only a kind of specific embodiment of the invention.It is clear that the invention is not restricted to
Upper embodiment, acceptable there are many deformations.
In short, all changes that those skilled in the art directly can export or associate from present disclosure
Shape is considered as protection scope of the present invention.