CN110331904A - A kind of follow-on antitheft chain apparatus - Google Patents
A kind of follow-on antitheft chain apparatus Download PDFInfo
- Publication number
- CN110331904A CN110331904A CN201810679949.7A CN201810679949A CN110331904A CN 110331904 A CN110331904 A CN 110331904A CN 201810679949 A CN201810679949 A CN 201810679949A CN 110331904 A CN110331904 A CN 110331904A
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- China
- Prior art keywords
- support frame
- sliding block
- slot
- fixed
- pan portion
- Prior art date
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Links
- 230000000694 effects Effects 0.000 claims abstract description 13
- 238000003780 insertion Methods 0.000 claims description 13
- 230000037431 insertion Effects 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
- E05C17/02—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means
- E05C17/04—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing
- E05C17/36—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing comprising a flexible member, e.g. chains
- E05C17/365—Security chains
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lock And Its Accessories (AREA)
Abstract
The invention discloses a kind of follow-on antitheft chain apparatus, including chain, fixing seat and lock, chain one end is fixed with fixing seat, the chain other end is fixed with tapered end, tapered end includes the great circle pan portion being located above and underlying roundlet pan portion, great circle pan portion is connected with roundlet pan portion by connecting rod, the top of great circle pan portion is fixed with chain, lock includes support frame, cover board is fixed on the upper surface of support frame, bottom plate is fixed on the lower end surface of support frame, sliding slot is provided on the upper surface of support frame, it is connected with sliding block to sliding slot inner slidable, slot is provided on the upper surface of sliding block, the through-hole passed through for roundlet pan portion is provided on the cover board above slot, the right part of through-hole is provided with elongate slots being connected to through-hole and for rod slide, support frame is internally provided with the retaining mechanism for locking sliding block, sliding block with Resetting-mechanism is provided between support frame；The present invention improves anti-theft effect compared with traditional anti-theft device.
Description
Technical field
The present invention relates to a kind of follow-on antitheft chain apparatus.
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 tapered end, the second fixing seat far from one end of the first fixing seat
On be then provided with locked groove for locking with tapered end, but this kind of door chain is when in use, in order to make tapered end 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 antitheft chain apparatus, there are biggish safety is hidden
Suffer from.
Summary of the invention
To solve the above-mentioned problems, the present invention devises a kind of follow-on antitheft chain apparatus, which is using
When, after tapered end and lock locking, chain is straightened, i.e., and there is no extra length for door opening on chain, so,
The present invention improves anti-theft effect compared with traditional anti-theft device.
The object of the present invention is achieved like this:
Follow-on antitheft chain apparatus of the invention including chain, for the fixing seat fixed with doorframe and is used for and door
The fixed lock of body, chain one end are fixed with fixing seat, and the chain other end is fixed with the tapered end for locking with lock, lock
Head includes the great circle pan portion and underlying roundlet pan portion being located above, and great circle pan portion is connected with roundlet pan portion by connecting rod,
The top of great circle pan portion is fixed with chain, and the bracket that cross section is " Π " font, bracket are fixed on the front end face of fixing seat
Front end face on be provided with upper end opening and for the vertical slot that connecting rod slides into, the two sides at vertical slot upper end opening are provided with can
Cooperate with connecting rod and be oriented to facilitate connecting rod to slide into the arcwall face in vertical slot, forms cavity between fixing seat on the inside of bracket, lock
Seat includes support frame, is fixed with cover board on the upper surface of support frame, is fixed with bottom plate on the lower end surface of support frame, support frame it is upper
It is provided with sliding slot on end face, is connected with to sliding slot inner slidable sliding block, is provided on the upper surface of sliding block for roundlet pan portion
The slot of insertion, is provided with the through-hole passed through for roundlet pan portion on the cover board above slot, and the right part of through-hole is provided with
Elongate slots being connected to through-hole and for rod slide, support frame are internally provided with when sliding block slides into the right end of sliding slot
It is provided with for the retaining mechanism of locking sliding block, between sliding block and support frame after retaining mechanism solution lock slide for driving sliding block
The resetting-mechanism of reset.
Follow-on antitheft chain apparatus of the invention, wherein retaining mechanism includes being connected to support frame with can slide back and forth
The grab of upper surface right part is provided on sliding block and slides into the card of the right end Shi Keyu grab cooperation clamping of sliding slot in sliding block
Slot, being provided on sliding block can cooperate guiding snap onto the inclined-plane in card slot with Portable hook with grab, grab and support frame it is interior
It is embedded between side wall for driving grab movement so that grab snaps onto the first spring in card slot, support frame is internally provided with
For limiting the convex block of grab sliding position, it is equipped with the push rod for pushing grab in support frame, is set on the inner end of push rod
It is equipped with the sleeve part being sleeved on outside push rod, the outer end activity of push rod extendes back outside for support frame through support frame；By adopting
After this structure, the right end of sliding slot is slided into after the roundlet pan portion of tapered end is inserted into slot, and in tapered end and sliding block
When, grab can be snapped under the action of the first spring in the card slot on sliding block, and when user presses lower push-rod, grab can
It is detached from card slot, grab can conveniently realize the unlock to sliding block.
Follow-on antitheft chain apparatus of the invention, wherein one end part for the first spring is provided on support frame
First blind hole of insertion is provided with the second blind hole of the other end partial insertion for the first spring on grab；By using this
After kind structure, the positioning to the first spring can be realized.
Follow-on antitheft chain apparatus of the invention, wherein resetting-mechanism includes the slide bar being arranged on sliding block lower end surface,
It is provided with the elongated hole for sliding bar in support frame, cavity is provided on the lower end surface of support frame, the lower end of the slider activity is passed through
It protrudes into the cavities, is provided between slide bar and support frame for pushing sliding block so that sliding block slides into sliding slot after wearing elongated hole
The second spring of left end；By the setting of resetting-mechanism, after retaining mechanism solution lock slide, sliding block can be in second spring
Automatically the left end of sliding slot is slided under effect.
Follow-on antitheft chain apparatus of the invention, wherein be provided on the inner wall of support frame and be partly interposed in the second bullet
The first inserted link in spring is provided with the second inserted link being partly interposed in second spring on the right side of slide bar；It is inserted by first
The setting of bar and the second inserted link can be realized the positioning to second spring.
Follow-on antitheft chain apparatus of the invention, wherein be provided on the support frame on the left of cavity and slided into sliding block
Top-pushing mechanism when left end for ejecting tapered end from slot；By the setting of top-pushing mechanism, slided into sliding block most left
When end, top-pushing mechanism can eject the roundlet pan portion in tapered end from slot, so, can take from lock to user
Lower lock head is brought convenience.
Follow-on antitheft chain apparatus of the invention, wherein top-pushing mechanism includes mandril, and the lower end of mandril is provided with annular
Boss is provided with the slideway slid vertically for annular convex platform on the support frame of cavity top, and the lower end of slideway, which is fixed with, to be used for
The sealing plate for closing slideway, is provided with the third spring for pushing tow mandril in the slideway between annular convex platform and sealing plate, in sliding block
It is provided with the jack of upper part insertion be connected to slot and for mandril, the upper end activity of mandril is inserted after support frame
Enter in jack, be provided with being connected to jack on the lower end surface of sliding block left part and can cooperate guiding to facilitate mandril to insert with mandril
Enter the guide groove into jack, is provided on the lower end surface of roundlet pan portion for being inserted into jack to facilitate mandril from jack
Middle release pushes away column, and the height for pushing away column is identical as the depth of jack, and cavity is for roundlet pan portion and pushes away column slide-in；By using this
After kind structure, top-pushing mechanism can reliably eject the roundlet pan portion of tapered end from slot, and when user needs to lock tapered end
When being tightened on lock, i.e., after the roundlet pan portion of tapered end is inserted into slot, pushes away column and be inserted into jack, so,
Mandril can be ejected from jack, so that the related sliding block of tapered end moves right, so that sliding block and retaining mechanism are locked
Tightly.
Follow-on antitheft chain apparatus of the invention, wherein the upper end of mandril, which is provided with, to be cooperated with the inner sidewall of jack
Guiding is to facilitate mandril to be inserted into the annular guide surface in jack；By the setting of annular guide surface, the upper end of mandril can be more
It is easily inserted into jack.
Follow-on antitheft chain apparatus of the invention, wherein cover board and bottom plate are bolted on support frame, bottom
The counter sink for bolt insertion is provided in plate；After by using this structure, it can be brought to the assembly of cover board and bottom plate
It is convenient.
Follow-on antitheft chain apparatus of the invention, wherein be provided with and pass through for screw to facilitate and will consolidate in fixing seat
Reservation is fixed to the first bolt hole on doorframe, is provided with and passes through for screw to facilitate and bottom plate is fixed in door body on bottom plate
The second bolt hole；After by using this structure, after screw passes through the first bolt hole, easily fixing seat can be fixed
Onto doorframe, after screw passes through the second bolt hole, easily bottom plate can be fixed in door body, it can be easily by lock
Seat is fixed in door body.
After the present invention is by using above structure, after tapered end and lock locking, chain is straightened, i.e., without more on chain
Remaining length is for door opening, and so, the present invention improves anti-theft effect compared with traditional anti-theft device.
Detailed description of the invention
Fig. 1 is the overlooking structure diagram of lock；
Fig. 2 is the partial cross-sectional structural diagram of lock；
Fig. 3 is the schematic cross-sectional view of lock；
Fig. 4 is the schematic cross-sectional view after tapered end and lock cooperation；
Fig. 5 is the structural schematic diagram after fixing seat, chain are connected with tapered end；
Fig. 6 is amplified structural schematic diagram at A in Fig. 2；
Fig. 7 is amplified structural schematic diagram at B in Fig. 2；
Fig. 8 is amplified structural schematic diagram at C in Fig. 3；
Fig. 9 is amplified structural schematic diagram at D in Fig. 4；
Figure 10 is the overlooking structure diagram of fixing seat.
Specific embodiment
The specific embodiment of the invention is described in further detail with reference to the accompanying drawing.
A kind of follow-on antitheft chain apparatus including chain 1, for the fixing seat 2 fixed with doorframe and is used for and door body
Fixed lock 3,1 one end of chain and fixing seat 2 are fixed, and 1 other end of chain is fixed with the tapered end for locking with lock 3
4, tapered end 4 includes the great circle pan portion 41 and underlying roundlet pan portion 42, great circle pan portion 41 and roundlet pan portion 42 being located above
It is connected by connecting rod 43, the top of great circle pan portion 41 and chain 1 are fixed, and it is to fall that cross section is fixed on the front end face of fixing seat 2
The bracket 22 of " Π " font, be provided on the front end face of bracket 22 upper end opening and for the vertical slot 23 that connecting rod 43 slides into, it erects
Two sides at 23 upper end opening of slot, which are provided with, to cooperate guiding to facilitate connecting rod 43 to slide into the arc in vertical slot 23 with connecting rod 43
Shape face 24, forms cavity 25 between the inside of bracket 22 and fixing seat 2, lock 3 includes support frame 31, on the upper surface of support frame 31
It is fixed with cover board 32, bottom plate 33 is fixed on the lower end surface of support frame 31, sliding slot 311 is provided on the upper surface of support frame 31,
It is connected with to 311 inner slidable of sliding slot sliding block 34, is provided on the upper surface of sliding block 34 and is inserted for what roundlet pan portion 42 was inserted into
Slot 341 is provided with the through-hole 321 passed through for roundlet pan portion 42, the right side of through-hole 321 on the cover board 32 above slot 341
Portion is provided with elongate slots 322 being connected to through-hole 321 and for the sliding of connecting rod 43, and support frame 31 is internally provided in sliding block 34
Retaining mechanism when sliding into the right end of sliding slot 311 for locking sliding block 34, is provided between sliding block 34 and support frame 31
Resetting-mechanism after retaining mechanism solution lock slide 34 for driving sliding block 34 to reset；Retaining mechanism includes connecting with can slide back and forth
Being provided on the grab 51 of 31 upper surface right part of support frame, sliding block 34 can when sliding block 34 slides into the right end of sliding slot 311
Cooperate the card slot 342 of clamping with grab 51, being provided on sliding block 34 can cooperate guiding snap into Portable hook 51 with grab 51
Inclined-plane 343 in card slot 342 is embedded with for driving grab 51 mobile so that card between grab 51 and the inner sidewall of support frame 31
Hook 51 snaps onto the first spring 52 in card slot 342, and support frame 31 is internally provided with for limiting the convex of 51 sliding position of grab
Block 312 is equipped with the push rod 53 for pushing grab 51 in support frame 31, is provided on the inner end of push rod 53 and is sleeved on push rod
The outer end activity of sleeve part 531 outside 53, push rod 53 extendes back outside for support frame 31 through support frame 31；By using this
After kind structure, after the roundlet pan portion of tapered end is inserted into slot, and when tapered end and sliding block slide into the right end of sliding slot, card
Hook can be snapped under the action of the first spring in the card slot on sliding block, and when user presses lower push-rod, grab can be detached from
Card slot, grab can conveniently realize the unlock to sliding block；It is provided on support frame 31 for one end part of the first spring 52
First blind hole 313 of insertion is provided with the second blind hole 511 of the other end partial insertion for the first spring 52 on grab 51；
After by using this structure, the positioning to the first spring can be realized；Resetting-mechanism includes being arranged on 34 lower end surface of sliding block
Slide bar 344, the elongated hole 314 slided for slide bar 344 is provided in support frame 31, is provided on the lower end surface of support frame 31
Cavity 315,344 lower end activity of slide bar are protruded into cavity 315 after running through elongated hole 314, are set between slide bar 344 and support frame 31
It is equipped with for pushing sliding block 34 so that sliding block 34 slides into the second spring 6 of the left end of sliding slot 311；Pass through setting for resetting-mechanism
It sets, after retaining mechanism solution lock slide, sliding block can slide into automatically the left end of sliding slot under the action of second spring；Support
It is provided with the first inserted link 316 being partly interposed in second spring 6 on the inner wall of frame 31, is provided on the right side of slide bar 344
The second inserted link 345 being partly interposed in second spring 6；By the setting of the first inserted link and the second inserted link, can be realized to
The positioning of two springs；Be provided on the support frame 31 in the left side of cavity 315 when sliding block 34 slides into left end for by tapered end 4 from
The top-pushing mechanism ejected in slot 341；By the setting of top-pushing mechanism, when sliding block slides into left end, top-pushing mechanism can
Roundlet pan portion in tapered end is ejected from slot, so, tapered end can be removed from lock to user and brought convenience；Top
Pushing mechanism includes mandril 71, and the lower end of mandril 71 is provided with annular convex platform 711, is provided on the support frame 31 at 315 top of cavity
For the slideway 317 that annular convex platform 711 slides vertically, the lower end of slideway 317 is fixed with the sealing plate 72 for closing slideway 317,
It is provided with the third spring 73 for pushing tow mandril 71 in slideway 317 between annular convex platform 711 and sealing plate 72, is set in sliding block 34
It is equipped with jack 346 being connected to slot 341 and for the insertion of the upper part of mandril 71, the upper end activity of mandril 71 is through branch
It is inserted in jack 346, is provided on the lower end surface of 34 left part of sliding block being connected to jack 346 and can be with mandril 71 after support 31
Cooperate guide groove 347 of the guiding to facilitate mandril 71 to be inserted into jack 346, is provided with and is used on the lower end surface of roundlet pan portion 42
It is inserted into jack 346 and pushes away column 44 for what mandril 71 was released from jack 346 to facilitate, push away the height and jack 346 of column 44
Depth is identical, and cavity 25 is for roundlet pan portion 42 and pushes away the slide-in of column 44；After by using this structure, top-pushing mechanism can be reliable
Ground ejects the roundlet pan portion of tapered end from slot, and when user needs for tapered end to be locked on lock, i.e., in the small of tapered end
It after round plate is inserted into slot, pushes away column and is inserted into jack, so, mandril can be ejected from jack, from
And the related sliding block of tapered end is enabled to move right, so that sliding block and retaining mechanism are locked；The upper end of mandril 71 is provided with can be with
The inner sidewall cooperation guiding of jack 346 is to facilitate mandril 71 to be inserted into the annular guide surface 712 in jack 346；It is led by annular
The upper end of setting to face, mandril can be more easily inserted into jack；Cover board 32 and bottom plate pass through bolt 35 and are fixed on
On support frame 31, the counter sink 331 being embedded in for bolt 35 is provided in bottom plate 33；After by using this structure, it can give
The assembly of cover board and bottom plate is brought convenience；It is provided with and passes through for screw to facilitate fixing seat 2 being fixed to doorframe in fixing seat 2
On the first bolt hole 21, be provided on bottom plate 33 and passed through for screw to facilitate the second spiral shell being fixed to bottom plate 33 in door body
Keyhole 332；After by using this structure, after screw passes through the first bolt hole, fixing seat easily can be fixed to door
On frame, after screw passes through the second bolt hole, easily bottom plate can be fixed in door body, can easily be consolidated lock
Determine onto door body；When installing the present invention, fixing seat and doorframe are fixed, lock and door body are fixed, and in lock and door body
When fixed, when needing to guarantee that tapered end and lock are locked, chain is at the state being straightened, i.e., the roundlet pan portion in tapered end is inserted
Enter into slot, and slide into right end in sliding block, when sliding block and retaining mechanism are locked, chain is at the shape being straightened
State；In using the present invention, it when it is required that tapered end and lock are locked, is inserted into after the roundlet pan portion of tapered end is passed through through-hole
In slot, mandril is pushed out jack under the action of pushing away column at this time, and then move right tapered end, and sliding block is driven by tapered end at this time
It moves right, when sliding block is moved to right end, grab is by slider locking, and chain is straightened at this time, the roundlet pan portion on tapered end
It can not deviate from from elongate slots, to realize the locking to tapered end and lock；When needing to unlock tapered end and lock, press
Push rod, the card slot that grab is detached from sliding block are moved to the left at this point, sliding block is moved to the left under the action of second spring in sliding block
During, mandril can gradually slide into guide groove and be directed to slot pushing, when sliding block continue to be moved to the left to it is most left
When end, mandril can be moved to the lower section of jack, and the upper end of mandril can be inserted into jack under the action of third spring at this time
In, at this point, the roundlet pan portion on tapered end can be ejected from slot, so, lock can be removed from lock to user
Head is brought convenience, and when tapered end is removed from lock, can be realized the unlock of tapered end and lock；When tapered end and lock unlock
Afterwards, the connecting rod in tapered end is slid into the vertical slot of bracket, roundlet pan portion and pushes away column at this time and can slide into sliding chamber, from
And can be realized and tapered end is kept in, so, it can be avoided door body and occur chain and tapered end during switch and pressed from both sides
The phenomenon that between doorframe and door body, so as to avoid the damage of door body and doorframe and chain and tapered end.
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.
Claims (10)
1. a kind of follow-on antitheft chain apparatus, including chain (1), for the fixing seat (2) fixed with doorframe and it is used for and door
The fixed lock (3) of body, described chain (1) one end and fixing seat (2) are fixed, chain (1) other end be fixed with for
The tapered end (4) that lock (3) locks, it is characterised in that: the tapered end (4) includes the great circle pan portion (41) being located above and position
Roundlet pan portion (42) in lower section, the great circle pan portion (41) and roundlet pan portion (42) are connected by connecting rod (43), the great circle
The top of pan portion (41) and chain (1) are fixed, and it be " Π " font that cross section is fixed on the front end face of the fixing seat (2)
Bracket (22), be provided on the front end face of the bracket (22) upper end opening and for the vertical slot (23) that connecting rod (43) slide into,
Two sides at vertical slot (23) upper end opening, which are provided with, to cooperate guiding to facilitate connecting rod (43) to slide into connecting rod (43)
Arcwall face (24) in vertical slot (23) forms cavity (25) between bracket (22) inside and fixing seat (2), the lock
(3) include support frame (31), be fixed on the upper surface of support frame as described above (31) cover board (32), the lower end of support frame as described above (31)
It is fixed with bottom plate (33), is provided on the upper surface of support frame as described above (31) sliding slot (311) on face, the sliding slot (311) is internal
It has been slidably connected sliding block (34), the slot for roundlet pan portion (42) insertion is provided on the upper surface of the sliding block (34)
(341), it is located on the cover board (32) above slot (341) and is provided with the through-hole (321) passed through for roundlet pan portion (42), it is described
The right part of through-hole (321) is provided with elongate slots (322) being connected to through-hole (321) and for connecting rod (43) sliding, the branch
Support (31) is internally provided with the locking machine that locking sliding block (34) are used for when sliding block (34) slides into the right end of sliding slot (311)
Structure is provided in retaining mechanism solution lock slide (34) afterwards for driving sliding block (34) between the sliding block (34) and support frame (31)
The resetting-mechanism of reset.
2. follow-on antitheft chain apparatus according to claim 1, which is characterized in that the retaining mechanism includes can front and back
It is slidably connected to be provided on the grab (51) of support frame (31) upper surface right part, the sliding block (34) and be slided in sliding block (34)
To the card slot (342) of right end Shi Keyu grab (51) the cooperation clamping of sliding slot (311), being provided on the sliding block (34) can be with
Grab (51) cooperation guiding snaps onto the inclined-plane (343) in card slot (342), the grab (51) and support with Portable hook (51)
It is embedded between the inner sidewall of frame (31) for driving grab (51) mobile so that grab (51) snaps onto the in card slot (342)
One spring (52), support frame as described above (31) are internally provided with the convex block (312) for limiting grab (51) sliding position, the branch
It is equipped with the push rod (53) for pushing grab (51) in support (31), is provided with and is sleeved on the inner end of the push rod (53)
The outer end activity of the external sleeve part (531) of push rod (53), the push rod (53) is extended back through support frame (31) for support
Frame (31) is outside.
3. follow-on antitheft chain apparatus according to claim 2, which is characterized in that support frame as described above is provided on (31)
For the first blind hole (313) of one end partial insertion of the first spring (52), it is provided on the grab (51) for the first bullet
The second blind hole (511) of the other end partial insertion of spring (52).
4. follow-on antitheft chain apparatus according to claim 1, which is characterized in that the resetting-mechanism includes that setting exists
Slide bar (344) on sliding block (34) lower end surface is provided with the elongated hole for slide bar (344) sliding in support frame as described above (31)
(314), it is provided with cavity (315) on the lower end surface of support frame as described above (31), slide bar (344) the lower end activity runs through elongated hole
(314) it protrudes into after in cavity (315), is provided between the slide bar (344) and support frame (31) for pushing sliding block (34)
So that sliding block (34) slides into the second spring (6) of the left end of sliding slot (311).
5. follow-on antitheft chain apparatus according to claim 4, which is characterized in that on the inner wall of support frame as described above (31)
It is provided with the first inserted link (316) being partly interposed in second spring (6), is provided with portion on the right side of the slide bar (344)
Divide the second inserted link (345) being inserted in second spring (6).
6. follow-on antitheft chain apparatus according to claim 4 or 5, which is characterized in that on the left of the cavity (315)
The top when sliding block (34) slides into left end for ejecting tapered end (4) from slot (341) is provided on support frame (31)
Pushing mechanism.
7. follow-on antitheft chain apparatus according to claim 6, which is characterized in that the top-pushing mechanism includes mandril
(71), the lower end of the mandril (71) is provided with annular convex platform (711), is set on the support frame (31) at the top of the cavity (315)
It is equipped with the slideway (317) slid vertically for annular convex platform (711), the lower end of the slideway (317) is fixed with for closing cunning
The sealing plate (72) in road (317) is provided with for pushing tow in the slideway (317) between the annular convex platform (711) and sealing plate (72)
The third spring (73) of mandril (71) is provided in the sliding block (34) being connected to slot (341) and for mandril (71)
The upper end activity of the jack (346) of upper part insertion, the mandril (71) is inserted in jack (346) after support frame (31)
In, be provided on the lower end surface of sliding block (34) left part it is being connected to jack (346) and can with mandril (71) cooperate be oriented to
The guide groove (347) for facilitating mandril (71) to be inserted into jack (346) is arranged on the lower end surface of the roundlet pan portion (42) useful
In being inserted into facilitate that releases mandril (71) from the jack (346) pushing away column (44) in jack (346), the column (44) that pushes away
Height is identical as the depth of jack (346), and the cavity (25) is for roundlet pan portion (42) and pushes away column (44) slide-in.
8. follow-on antitheft chain apparatus according to claim 7, which is characterized in that the upper end of the mandril (71) is arranged
Having can cooperate guiding to facilitate mandril (71) to be inserted into the annular guide surface in jack (346) with the inner sidewall of jack (346)
(712)。
9. follow-on antitheft chain apparatus according to claim 1, which is characterized in that the cover board (32) and bottom plate are logical
It crosses bolt (35) to be fixed on support frame (31), the counter sink for bolt (35) insertion is provided in the bottom plate (33)
(331)。
10. follow-on antitheft chain apparatus according to claim 1, which is characterized in that be provided on the fixing seat (2)
It is passed through for screw to facilitate the first bolt hole (21) being fixed to fixing seat (2) on doorframe, is arranged on the bottom plate (33)
Have and is passed through for screw to facilitate the second bolt hole (332) being fixed to bottom plate (33) in door body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810679949.7A CN110331904B (en) | 2018-06-27 | 2018-06-27 | Improved anti-theft chain device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810679949.7A CN110331904B (en) | 2018-06-27 | 2018-06-27 | Improved anti-theft chain device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110331904A true CN110331904A (en) | 2019-10-15 |
| CN110331904B CN110331904B (en) | 2020-09-22 |
Family
ID=68139559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810679949.7A Active CN110331904B (en) | 2018-06-27 | 2018-06-27 | Improved anti-theft chain device |
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| Country | Link |
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| CN (1) | CN110331904B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2452151A (en) * | 1947-01-21 | 1948-10-26 | Bert D Robins | Chain and lock mechanism |
| US4027907A (en) * | 1976-04-08 | 1977-06-07 | International Top Security Corporation | Security chain lock for doors |
| CN1146518A (en) * | 1995-09-28 | 1997-04-02 | 钟贯进 | Safety theft-proof chain lock device |
| GB2405442A (en) * | 2003-08-29 | 2005-03-02 | Simon Perry | Window opening restraint |
| CN205476997U (en) * | 2015-12-30 | 2016-08-17 | 河南省郑州水利学校 | Anti -theft chain |
| US20170058580A1 (en) * | 2015-09-02 | 2017-03-02 | Elbee Pty Ltd. | Window lock assembly |
-
2018
- 2018-06-27 CN CN201810679949.7A patent/CN110331904B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2452151A (en) * | 1947-01-21 | 1948-10-26 | Bert D Robins | Chain and lock mechanism |
| US4027907A (en) * | 1976-04-08 | 1977-06-07 | International Top Security Corporation | Security chain lock for doors |
| CN1146518A (en) * | 1995-09-28 | 1997-04-02 | 钟贯进 | Safety theft-proof chain lock device |
| GB2405442A (en) * | 2003-08-29 | 2005-03-02 | Simon Perry | Window opening restraint |
| US20170058580A1 (en) * | 2015-09-02 | 2017-03-02 | Elbee Pty Ltd. | Window lock assembly |
| CN205476997U (en) * | 2015-12-30 | 2016-08-17 | 河南省郑州水利学校 | Anti -theft chain |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110331904B (en) | 2020-09-22 |
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