CN110118041A - Follow-on antitheft chain apparatus - Google Patents
Follow-on antitheft chain apparatus Download PDFInfo
- Publication number
- CN110118041A CN110118041A CN201810679948.2A CN201810679948A CN110118041A CN 110118041 A CN110118041 A CN 110118041A CN 201810679948 A CN201810679948 A CN 201810679948A CN 110118041 A CN110118041 A CN 110118041A
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- China
- Prior art keywords
- support frame
- sliding block
- fixed
- slot
- pan portion
- Prior art date
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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 lock includes support frame, is fixed with cover board on the upper surface of support frame, under support frame
It is fixed with bottom plate on end face, sliding slot is provided on the upper surface of support frame, is connected with sliding block to sliding slot inner slidable, sliding block
It is provided with the slot for the insertion of roundlet pan portion on upper surface, is provided on the cover board above slot and is worn for roundlet pan portion
The through-hole crossed, the right part of through-hole are provided with elongate slots being connected to through-hole and for rod slide, and support frame is internally provided with
It is provided with and is locking when sliding block slides into the right end of sliding slot for the retaining mechanism of locking sliding block, between sliding block and support frame
Resetting-mechanism after mechanism solution lock slide for driving sliding block to 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；After by using this structure, top-pushing mechanism can be reliably
The roundlet pan portion of tapered end is ejected from slot, and when user needs for tapered end to be locked on lock, i.e., in the roundlet of tapered end
It after pan portion is inserted into slot, pushes away column and is inserted into jack, so, mandril can be ejected from jack, thus
The related sliding block of tapered end is enabled to move right, so that sliding block and retaining mechanism are locked.
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.
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 lock 3 includes support frame 31, the upper surface of support frame 31
On be fixed with cover board 32, bottom plate 33 is fixed on the lower end surface of support frame 31, is provided with sliding slot on the upper surface of support frame 31
311, it is connected with to 311 inner slidable of sliding slot sliding block 34, is provided on the upper surface of sliding block 34 for the insertion of roundlet pan portion 42
Slot 341, the through-hole 321 passed through for roundlet pan portion 42, through-hole 321 are provided on the cover board 32 above slot 341
Right part be provided with being connected to through-hole 321 and for the elongate slots 322 that connecting rod 43 slides, support frame 31 is internally provided in cunning
Retaining mechanism when block 34 slides into the right end of sliding slot 311 for locking sliding block 34, is arranged between sliding block 34 and support frame 31
There is the resetting-mechanism after retaining mechanism solution lock slide 34 for driving sliding block 34 to reset；Retaining mechanism includes that can slide back and forth ground
It is connected to the grab 51 of 31 upper surface right part of support frame, is provided on sliding block 34 and slides into the right end of sliding slot 311 in sliding block 34
Shi Keyu grab 51 cooperates the card slot 342 of clamping, is provided with to cooperate to be oriented to grab 51 on sliding block 34 and be blocked with Portable hook 51
Enter to the inclined-plane 343 in card slot 342, be embedded between grab 51 and the inner sidewall of support frame 31 for drive grab 51 mobile with
Grab 51 is set to snap onto the first spring 52 in card slot 342, support frame 31 is internally provided with for limiting 51 sliding position of grab
Convex block 312, the push rod 53 for pushing grab 51 is equipped in support frame 31, is provided with and is sleeved on the inner end of push rod 53
The outer end activity of sleeve part 531 outside push rod 53, push rod 53 extendes back outside for support frame 31 through support frame 31；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；It is provided on support frame 31 for one end of the first spring 52
First blind hole 313 of partial insertion is provided with the second blind hole of the other end partial insertion for the first spring 52 on grab 51
511；After by using this structure, the positioning to the first spring can be realized；Resetting-mechanism includes being arranged in 34 lower end of sliding block
Slide bar 344 on face is provided with the elongated hole 314 slided for slide bar 344 in support frame 31, sets on the lower end surface of support frame 31
Be equipped with cavity 315,344 lower end activity of slide bar is protruded into cavity 315 after running through elongated hole 314, slide bar 344 and support frame 31 it
Between be provided 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 resetting-mechanism
Setting, after retaining mechanism solution lock slide, sliding block can slide into automatically the left end of sliding slot under the action of second spring；
It is provided with the first inserted link 316 being partly interposed in second spring 6 on the inner wall of support frame 31, is set on the right side of slide bar 344
It is equipped with 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
Positioning to second spring；It is provided with when sliding block 34 slides into left end on the support frame 31 in 315 left side of cavity for that will lock
First 4 top-pushing mechanisms ejected from slot 341；Pass through the setting of top-pushing mechanism, when sliding block slides into left end, top-pushing mechanism
Roundlet pan portion in tapered end can be ejected from slot, so, the tapered end side of bringing can be removed from lock to user
Just；Top-pushing mechanism includes mandril 71, and the lower end of mandril 71 is provided with annular convex platform 711, sets on the support frame 31 at 315 top of cavity
It is equipped with the slideway 317 slid vertically for annular convex platform 711, the lower end of slideway 317 is fixed with the sealing plate for closing slideway 317
72, the third spring 73 for pushing tow mandril 71, sliding block 34 are provided in the slideway 317 between annular convex platform 711 and sealing plate 72
In be provided 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 passes through
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 top after perforating branches support 31
The cooperation of bar 71 is oriented to the guide groove 347 to facilitate mandril 71 to be inserted into jack 346, is provided on the lower end surface of roundlet pan portion 42
Column 44 is pushed away by what mandril 71 was released from jack 346 to facilitate for being inserted into jack 346, pushes away the height and jack of column 44
346 depth is identical；After by using this structure, top-pushing mechanism can reliably push up the roundlet pan portion of tapered end from slot
Out, and when user needs for tapered end to be locked on lock, i.e., after the roundlet pan portion of tapered end is inserted into slot, pushing away column can
It is inserted into jack, so, mandril can be ejected from jack, so that the related sliding block of tapered end moves right
It is dynamic, so that sliding block and retaining mechanism are locked；The upper end of mandril 71 is provided with to cooperate with the inner sidewall of jack 346 and be oriented to convenient
Mandril 71 is inserted into the annular guide surface 712 in jack 346；By the setting of annular guide surface, the upper end of mandril can be more square
Just it is inserted into jack；Cover board 32 and bottom plate pass through bolt 35 and are fixed on support frame 31, be provided in bottom plate 33 for
The counter sink 331 that bolt 35 is embedded in；After by using this structure, it can be brought convenience to the assembly of cover board and bottom plate；It is fixed
It is provided with and passes through for screw to facilitate the first bolt hole 21 being fixed to fixing seat 2 on doorframe on seat 2, be arranged on 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；After by using this structure, when
After screw passes through the first bolt hole, easily fixing seat can be fixed on doorframe, after screw passes through the second bolt hole, energy
It is enough that easily bottom plate is fixed in door body, easily lock can be fixed in door body；When installing the present invention, will consolidate
Reservation is fixed with doorframe, and lock and door body are fixed, and in lock and fixed door body, needs to guarantee that tapered end and lock are locked
When, chain is at the state being straightened, i.e., the roundlet pan portion in tapered end is inserted into slot, and slides into sliding block most right
End, when sliding block and retaining mechanism are locked, chain is at the state being straightened；In using the present invention, when it is required that lock
When head is locked with lock, it is inserted into slot after the roundlet pan portion of tapered end is passed through through-hole, mandril is under the action of pushing away column at this time
It is pushed out jack, then move right tapered end, and sliding block is driven by tapered end and moves right at this time, when sliding block is moved to right end
When, grab is by slider locking, and chain is straightened at this time, and the roundlet pan portion on tapered end can not deviate from from elongate slots, to realize
Locking to tapered end and lock；When needing to unlock tapered end and lock, by lower push-rod, grab is detached from the card slot on sliding block,
At this point, sliding block is moved to the left under the action of second spring, during sliding block is moved to the left, mandril can be gradually slide into
Into guide groove and it is directed to slot pushing, when sliding block continues to be moved to the left to left end, mandril can be moved under jack
Side, the upper end of mandril can be inserted into jack under the action of third spring at this time, at this point, the roundlet pan portion on tapered end can
It is ejected from slot, so, tapered end can be removed from lock to user and brought convenience, when tapered end is taken from lock
When lower, the unlock of tapered end and lock can be 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.
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 and chain (1) of pan portion (41) are fixed, and the lock (3) includes support frame (31), the upper surface of support frame as described above (31)
On be fixed with cover board (32), be fixed on the lower end surface of support frame as described above (31) bottom plate (33), the upper end of support frame as described above (31)
Be provided on face sliding slot (311), be connected with sliding block (34) to sliding slot (311) inner slidable, the sliding block (34) it is upper
It is provided with the slot (341) for roundlet pan portion (42) insertion on end face, is located on the cover board (32) above slot (341) and is arranged
There is a through-hole (321) passed through for roundlet pan portion (42), the right part of the through-hole (321) is provided with to be connected to through-hole (321)
And for the elongate slots (322) of connecting rod (43) sliding, support frame as described above (31), which is internally provided with, slides into sliding slot in sliding block (34)
(311) it is used for the retaining mechanism of locking sliding block (34) when right end, is provided between the sliding block (34) and support frame (31)
In retaining mechanism solution lock slide (34) afterwards for driving the resetting-mechanism of sliding block (34) 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).
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 |
|---|---|---|---|
| CN201810679948.2A CN110118041B (en) | 2018-06-27 | 2018-06-27 | Improved anti-theft chain device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810679948.2A CN110118041B (en) | 2018-06-27 | 2018-06-27 | Improved anti-theft chain device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110118041A true CN110118041A (en) | 2019-08-13 |
| CN110118041B CN110118041B (en) | 2020-09-11 |
Family
ID=67519726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810679948.2A Expired - Fee Related CN110118041B (en) | 2018-06-27 | 2018-06-27 | Improved anti-theft chain device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110118041B (en) |
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| US3660997A (en) * | 1970-01-09 | 1972-05-09 | David N Michnoff | Anti-theft chain lock for automobile compartments |
| CN200968121Y (en) * | 2006-09-12 | 2007-10-31 | 杨正仁 | Internal or external opening safety button |
| KR20110088168A (en) * | 2010-01-28 | 2011-08-03 | 롯데알미늄 주식회사 | Door locking system of bicycle parking lot |
| CN205476997U (en) * | 2015-12-30 | 2016-08-17 | 河南省郑州水利学校 | Anti -theft chain |
| CN207033154U (en) * | 2017-04-27 | 2018-02-23 | 徐州工业职业技术学院 | A kind of reinforced door chain using spring leaf |
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2018
- 2018-06-27 CN CN201810679948.2A patent/CN110118041B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3660997A (en) * | 1970-01-09 | 1972-05-09 | David N Michnoff | Anti-theft chain lock for automobile compartments |
| CN200968121Y (en) * | 2006-09-12 | 2007-10-31 | 杨正仁 | Internal or external opening safety button |
| KR20110088168A (en) * | 2010-01-28 | 2011-08-03 | 롯데알미늄 주식회사 | Door locking system of bicycle parking lot |
| CN205476997U (en) * | 2015-12-30 | 2016-08-17 | 河南省郑州水利学校 | Anti -theft chain |
| CN207033154U (en) * | 2017-04-27 | 2018-02-23 | 徐州工业职业技术学院 | A kind of reinforced door chain using spring leaf |
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| CN110118041B (en) | 2020-09-11 |
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