CN107780722A - Padlock - Google Patents
Padlock Download PDFInfo
- Publication number
- CN107780722A CN107780722A CN201711166480.9A CN201711166480A CN107780722A CN 107780722 A CN107780722 A CN 107780722A CN 201711166480 A CN201711166480 A CN 201711166480A CN 107780722 A CN107780722 A CN 107780722A
- Authority
- CN
- China
- Prior art keywords
- lock
- hole
- lock body
- locking
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B67/00—Padlocks; Details thereof
- E05B67/02—Cases
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B67/00—Padlocks; Details thereof
- E05B67/06—Shackles; Arrangement of the shackle
- E05B67/22—Padlocks with sliding shackles, with or without rotary or pivotal movement
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B67/00—Padlocks; Details thereof
- E05B67/38—Auxiliary or protective devices
Landscapes
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention discloses a kind of padlock, including lock body, lock core, locking steel ball, lock bridge, elastic spacing one, supporting plate, guide plate and shell, the lock core, elastic limited part and locking steel ball are in the respective aperture and groove of the lock body, shell is laterally enclosed on the lock body periphery, lock bridge one end of U-shape structure is resiliently mounted in the hole of the lock body, and the elastic spacing one is used for limiting lock beam hole abjection lock body.The present invention is integrally formed the obtained lock body by powder metallurgical technique or die cast metal, reduces machining, saves material-saving；Shell made of metal eliminates electroplating technology, further pins lock core using shell, improves the security of padlock product.
Description
Technical field
The present invention relates to a kind of padlock.
Background technology
Padlock body typically has multiple holes, it is necessary to be machined by multiple working procedure, because needing to process in multiple faces, often needs
Multiple stations, multiple clamping are wanted, causes machining accuracy low；And padlock body shell is typically in order to reach attractive in appearance and antirust mesh
, electroplating technology can be used, certain environmental issue be present；In addition, blade lock core of padlock mounting is typically by mounting body and card
Spring forms, and can be prized under outer masterpiece industry, and lock core drops out in the lump, and locking steel ball can not lock, and lock bridge is deviate from therewith, and padlock is opened
Open, certain safety problem be present.
The content of the invention
In order to solve the problems, such as that prior art is present, the present invention adopts the technical scheme that a kind of padlock, including：
Lock body, it is spaced apart successively provided with the first lock beam hole, lock core hole, the second lock beam hole on the lock body, the lock body
Upper and lower end is respectively arranged with supporting table and guide table, and the height between the supporting table and guide table is less than lock body
Highly；The first locking slot is provided between the lock core hole and the first lock beam hole, is provided between the lock core hole and the second lock beam hole
Second locking slot, first locking slot are respectively connected with leading to first lock beam hole and lock core hole, second locking slot with
Second lock beam hole and lock core hole are respectively connected with leading to；
Lock core, it is rotatably arranged in the lock core hole；
Steel ball is locked, is engaged in first locking slot and the second locking slot, and with the lock core；
Lock bridge, it is plugged in the lock body；
Elastic spacing one, it is engaged with the lock bridge；
Supporting plate, in the supporting table, it is covered in the top of the lock core, locking steel ball and elastic spacing one；
Guide plate, above offers pilot hole, and the guide plate is arranged at the guide table；And
Shell, it is the hollow housing of at least one end open, fixation is set in outside the lock body, and lock is offered on the shell
Beam folding hole, keyhole, the lock bridge folding hole are engaged with the first lock beam hole and the second lock beam hole, and the keyhole is with being oriented to
Hole is connected.Direction opening of the shell on edge perpendicular to the lock bridge, it is easy to laterally be sleeved on outside the lock body, and
Lock bridge entangles the whole peace padlock in the locked state of fit system of lock core by lock bridge pinning shell, shell after loading
Full property improves.The lock bridge folding hole and keyhole are opened in two opposing end surfaces of the shell respectively.
In one embodiment of the invention, the upper end of the lock body is further opened with limit card slot, and the limit card slot is located at
On the cell wall of first locking slot, the spacing elastic component is fastened in the limit card slot.
In one embodiment of the invention, the elastic spacing one is set in the locking steel ball in first locking slot
On, the shape of the elastic spacing one and the sphere of the locking steel ball match.The locking steel ball is spherical, the elasticity
Locating part is shaped as " Ω " type.The elastic spacing one is set in the spherical periphery and the firm card of elastic spacing one is set
In limit card slot, so as to play restriction effect to the lock bridge, prevent the lock bridge from dropping out lock body.The elastic spacing one
Both ends are stuck in limit card slot.
In one embodiment of the invention, the section of the lock core is " convex " font, and the lock core includes rotation seat and dead bolt,
The rotation seat is fixedly connected with the dead bolt, and the dead bolt is between first locking slot and the second locking slot.Yu Ben
Invent in an embodiment, the lock bridge is U-shape structure, and one end of the U-shape structure is located in first lock beam hole, the U
The other end of type structure is engaged with second lock beam hole.
In one embodiment of the invention, the lock body is powder metallurgical technique or the disposable compacting sintering of die cast metal technique
Form or be made by the cleaved processing of section bar.All grooves on first lock beam hole, lock core hole, the second lock beam hole and lock body
It is powder compacting or the disposable machine-shaping of die cast metal, dimensional accuracy is stable, without being machined again.The lock core hole
The 3rd locking slot is further opened with hole wall, the section of the 3rd locking slot is trapezoidal or circular arc.
In one embodiment of the invention, the lock body both sides are assembled with side cover plate, and the side cover plate is fixed with the lock body
Connection.The lock body both sides are provided with projection, and the side cover plate is provided with neck, described raised to be engaged with the neck.
In one embodiment of the invention, the side cover plate is fixed with shell by welding manner.
In one embodiment of the invention, the side cover plate is by dripping obtained by modeling technique.
In one embodiment of the invention, the shell is connected with the lock body by glue or pin connection or riveting or tight
Swollen technique makes both close-fittings.The shell is cut by metallic article pipe or metal plate punching part is process or utilizes metal plate punching part
Rectangular housing is made in the technique such as welded.The shell is made up of stainless steel or brass or aluminium etc..
The technical program has the advantages that：
Padlock body is disposably processed using powder metallurgical technique or die cast metal technique, machining is dropped to most
It is few, and the size and positional precision at each position are ensure that, reduce machining and the waste to raw material.Padlock shell passes through gold
Belong to cleaved rectangular tube, punching processing or be made using the mode of sheet metal process, eliminate electroplating processes, optimize making work
Skill.Lock body is laterally entangled by shell, while limits the position of lock core, without reusing lock core mounting and jump ring, ensure that
Lock core can not be prized, and improve the security of padlock.Lock bridge is from top to bottom fitted into the first lock beam hole, and elastic spacing one can
Blocked in released state below lock bridge, limitation lock bridge abjection, while also shell is firmly limited and can not be taken out.
Brief description of the drawings
Fig. 1 is a kind of explosive view of the present invention；
A kind of part-structure schematic diagram when Fig. 2 is padlock locking state of the present invention；
Fig. 3 is Fig. 2 of the present invention A-A sectional views；
Fig. 4 is Fig. 2 of the present invention dimensional structure diagram；
Fig. 5 is a kind of dimensional structure diagram of lock body of the present invention；
Fig. 6 is the dimensional structure diagram of Fig. 4 of the present invention another angle；
Fig. 7 is Fig. 4 of the present invention front view；
Fig. 8 is Fig. 4 of the present invention top view；
Fig. 9 is the assembling schematic diagram of part-structure of the present invention；
Figure 10 is lock body of the present invention and the upward view after lock core assembling；
Installation diagram when Figure 11 is padlock locking state of the present invention between elastic spacing one and adjacent component；
Figure 12 is the cooperation schematic diagram between elastic spacing one and lock bridge of the present invention.
1st, lock body；2nd, shell；3rd, lock bridge；4th, lock core；5th, side cover plate；6th, steel ball is locked；7th, elastic spacing one；8th, support
Plate；9th, guide plate；21st, lock core hole；22A, the first lock beam hole；22B, the second lock beam hole；25th, supporting table；26th, guide table；27th, it is convex
Rise；200th, shoulder block；23A, the first locking slot；23B, the second locking slot；100th, minor apex face；400th, locking piece；42nd, be open pedestal；
111st, lock core blade；41st, dead bolt；51st, lock bridge bottom；300th, lock bridge folding hole.
Embodiment
With reference to embodiment and accompanying drawing 1 to 12, the invention will be further described.
A kind of padlock, including lock body 1, lock core 4, locking steel ball 6, lock bridge 3, elastic spacing one 7, supporting plate 8, guide plate 9
With shell 2, the lock core 4, elastic limited part 7 and locking steel ball 6 are in the respective aperture and groove of the lock body 1, and shell 2 is laterally
The periphery of lock body 1 is enclosed on, lock bridge one end of U-shape structure is resiliently mounted in the hole of the lock body 1, the elastic spacing one 7
Deviate from lock body 1 for limiting lock beam hole 3.
It is spaced apart successively provided with the first lock beam hole 22A, lock core hole 21, the second lock beam hole 22B, the lock on the lock body 1
The upper and lower end of body 1 is respectively arranged with supporting table 25 and guide table 26, the supporting table 25 and guide table 26 be to
It is recessed in the body of lock body 1.The supporting table 25 forms corresponding shoulder block 200 with guide table 26 on the lock body 1.The supporting table 25
Height between guide table 26 is less than the whole height of lock body 1.The first lock beam hole 22A, the lock bridge of lock core hole 21 and second
Hole 22B is through hole.The lock body 1 is that powder metallurgical technique or the disposable compacting sintering of die cast metal technique form, on lock body 1
All holes and groove be powder metallurgy mode or the disposable machine-shaping of die cast metal, using powder pressure in the present embodiment
Mode processed, so obtained product size stable accuracy, without being machined again.The lock body 1 is iron powder, in other embodiments
In can also be stainless steel powder or alloyed powder.The front and rear two sides of the lock body 1 is faceted pebble, i.e., round and smooth by several minor apex faces 100
Transition connects the front-back to be formed, and minor apex face structure enables the contact surface between lock body 1 and shell 2 to increase, improves both
Matching property.
The first locking slot 23A is provided between the lock beam hole 22A of lock core hole 21 and first, the lock core hole 21 and second is locked
Provided with the second locking slot 23B, the first locking slot 23A and the second locking slot 23B it is to the indent of lock body 1 between the 22B of beam hole
Groove.The first locking slot 23A is respectively connected with leading to the first lock beam hole 22A and lock core hole 21, second locking
Groove 23B is also respectively connected with leading to the second lock beam hole 22B and lock core hole 21, consequently facilitating the lock in unblock and unlocking
Tight steel ball 6 moves left and right.The upper end of the lock body 1 is further opened with limit card slot 24, and the limit card slot 24 is located at first
On locking slot 23A cell wall.The locking steel ball 6 is spherical, and the elastic spacing one 7 is shaped as " Ω " type.The elasticity
Locating part 7 is set in the spherical periphery and elastic spacing one 7 is fastened in limit card slot 24, so as to be risen to the lock bridge 3
To position-limiting action, prevent the lock bridge 3 from dropping out lock body 1.The 3rd locking slot 28, institute are further opened with the hole wall of the lock core hole 21
The section for stating the 3rd locking slot 28 is trapezoidal or circular arc.In the present embodiment by powder suppress to be trapezoidal, i.e., several
The faceted pebble composition to connect.
Lock core 4 described in the present embodiment uses blade lock core, can also use other types of lock in other embodiments
Core, such as lock cylinder.The lock core 4 is rotatably arranged in the lock core hole 21, and the section of the lock core is " convex " word
Type.The lock core 4 includes opening pedestal 42, lock core blade 111 and dead bolt 41, and the opening pedestal 42 is fixed with the dead bolt 41
Connection, both can be integrally formed or be attached by fixed forms such as welding.Offered on the opening pedestal 42
Mouth, nested mouth are locked, for the lock core blade 111 by the nested muzzle located at the opening pedestal 42, both are engaged energy
Realization is synchronously rotated.The lock core blade 111 is rotatablely connected with the lock body 1, and the lock core blade 111, which is provided with, unlocks
Hole 100, corresponding key is inserted in the open keyhole 100 during unlocking, rotated by rotating key lock core blade 111,
Lock core 4 is further driven to rotate.Locking piece 400 is used to be engaged with the lock core 4, plays and enters line-locked work to lock core
With.Locking piece in the present embodiment is needle roller, and when padlock locks, its part is located in the 3rd locking slot 28.
For the dead bolt 41 between the first locking slot 23A and the second locking slot 23B, the both sides of dead bolt 41 are phase
The locking steel ball 6 of cooperation.When length direction of the locking steel ball 6 along the dead bolt 41 is positioned at the both sides of the dead bolt 41, hang
Lock is in locking state, and the locking steel ball 6 in the second locking slot 23B blocks lock bridge.When the dead bolt 41 is rotated
When, the locking steel ball 6 of both sides can move towards, i.e., distance between the two diminishes, at the same time, positioned at the second locking slot 23B
Locking steel ball 6 will be disengaged from neck on the lock bridge 3, so as to realize released state, the lock bridge in the second lock beam hole 22B
3 one end detaches the second lock beam hole 22B.In the present embodiment, the lock bridge is U-shape structure, the length of the both sides of the U-shape structure
Degree is differed, and one end elasticity of U-shape structure is fastened in the first lock beam hole 22A, the other end of the U-shape structure with it is described
Second lock beam hole 22B is engaged.The shape of the elastic spacing one and the sphere of the locking steel ball match.
During assembling, after first the lock core 4, elastic spacing one 7 and locking steel ball 6 are fitted into the respective aperture of lock body 1, groove,
The supporting plate 8 is fixedly mounted in the supporting table 25 again, supporting plate 8 is stuck in the shoulder block 200 of the upper end of lock body 1
Place, the top of the lock core 4, locking steel ball 6 and elastic spacing one 7 is covered in, the guide plate 9 is fixedly mounted on described lead
To at platform 26, the guide plate 9 is stuck at the shoulder block 200 of the bottom of lock body 1；Then side is loaded onto into the both sides of lock body 1
Cover plate 5；Finally the shell 2 is fixed and is set in outside the lock body 1, one end of lock bridge 3 is from top to bottom loaded into the first lock bridge
In the 22A of hole, elastic spacing one 7 blocks lock bridge bottom 51, and limitation lock bridge 3 is deviate from, while also limitation shell 2 takes out.The lock bridge 3
The one end being fitted into the first lock beam hole 22A offers steel ball lock slots, and the lower section of steel ball lock slots is also provided with one and locked with steel ball
Determine the vertical slot that groove is connected, locking steel ball 6 is moved up and down in vertical slot during unlocking, and can smoothly move to the lock bridge
Bottom 51, it is connected on the platform of the lock bridge bottom 51, lock bridge 3 is pinned in order to avoid lock bridge 3 departs from lock body 1.The supporting plate 8
Thickness be more than the height of shoulder block 200, i.e., the height of the described mounted supporting plate 8 is higher by the height of lock body 1, in order to
Nervous cooperation between lock body 1 and shell；Meanwhile the supporting plate 8 improves the lateral pull intensity of padlock.The supporting plate
There is a spacing hole on 8, be inside equipped with a spacer pin, to limit the angle of the rotation of lock core 4.Lock bridge is offered on the shell 2 to open
Hole 300, keyhole are closed, the lock bridge folding hole 300 and keyhole are opened in two opposing end surfaces of the shell 2 respectively.It is described
Lock bridge folding hole 300 has two, is connected respectively with the first lock beam hole 22A and the second lock beam hole 22B.In the guide plate 9
The heart offers pilot hole, and the pilot hole, keyhole are connected with the three of open keyhole 100, so that key insertion lock core 4
Unlocked in lock core blade 111.
In the present embodiment, the both sides of lock body 1 are provided with projection 27, and the side cover plate 5 is provided with neck, during assembling described in general
Projection 27 is stuck in the neck.In other embodiments, the side cover plate 5 can be welded to connect with the shell 2,
Can also be by dripping obtained by modeling technique.In the present embodiment, the shell 2 makes both with the lock body 1 by tight swollen technique
Close-fitting.In other embodiments, and glue connection or pin connection or riveting can be used, or uses above-mentioned several connections
Any two kinds of mode are combined.In the present embodiment, the shell 2 is cuboid housing, is cut by metallic article pipe, other
Can be process using metal plate punching part or Rectangular shell is made in technique using metal plate punching part is welded etc. in embodiment
Body.The metal shell is generally made up of stainless steel or brass or aluminium.The shell 2 is along perpendicular to the direction of the lock bridge 3
Both ends open, it is easy to laterally be sleeved on the outside of lock body 1, and shell 2, shell 2 is pinned by lock bridge 3 after the loading of lock bridge 3
The fit system for entangling lock core 4 causes the whole security raising padlock in the locked state.Elastic spacing in the present embodiment
Part can also be that pin, jump ring etc. can play other parts of elastic spacing effect.
The present invention is integrally formed the obtained lock body 1 by powder compacting or die cast metal, reduces machining, energy-saving
Material；Padlock shell 2 is made by metal material simultaneously, eliminates electroplating technology, it is more environmentally friendly；Further lock is pinned using shell 2
Core 4, improve the security of padlock product.
Above-mentioned specific embodiment is used only to illustrate the present invention, rather than is to limit the invention, in the present invention
Objective and scope of the claims in, to any replacement and change for not paying creative work for making of the present invention,
Fall within the protection domain of patent of the present invention.
Claims (10)
- A kind of 1. padlock, it is characterised in that including：Lock body, it is spaced apart successively provided with the first lock beam hole, lock core hole, the second lock beam hole, the upper end of the lock body on the lock body Portion and bottom are respectively arranged with supporting table and guide table, and the height between the supporting table and guide table is less than the height of lock body Degree；The first locking slot is provided between the lock core hole and the first lock beam hole, the is provided between the lock core hole and the second lock beam hole Two locking slots, mutually it is connected successively between first lock beam hole, the first locking slot, lock core hole, the second locking slot, the second lock bridge It is logical；Lock core, it is rotatably arranged in the lock core hole；Steel ball is locked, is engaged in first locking slot and the second locking slot, and with the lock core；Lock bridge, it is plugged in the lock body；Elastic spacing one, it is engaged with the lock bridge；Supporting plate, in the supporting table, it is covered in the top of the lock core, locking steel ball and elastic spacing one；Guide plate, above offers pilot hole, and the guide plate is arranged at the guide table；AndShell, it is the hollow housing of at least one end open, fixation is set in outside the lock body, and offering lock bridge on the shell opens Hole, keyhole are closed, the lock bridge folding hole is engaged with the first lock beam hole and the second lock beam hole, the keyhole and pilot hole phase Connection.
- 2. padlock according to claim 1, it is characterised in that the upper end of the lock body is further opened with limit card slot, institute State limit card slot to be located on the cell wall of the first locking slot, the spacing elastic component is fastened in the limit card slot.
- 3. padlock according to claim 2, it is characterised in that the elastic spacing one is set in positioned at the described first locking On locking steel ball in groove, the shape of the elastic spacing one and the sphere of the locking steel ball match.
- 4. padlock according to claim 1, it is characterised in that the section of the lock core is " convex " font, the lock core bag Rotation seat and dead bolt are included, the rotation seat is fixedly connected with the dead bolt, and the dead bolt is located at first locking slot and second Between locking slot.
- 5. padlock according to claim 1, it is characterised in that the lock bridge is U-shape structure, one end of the U-shape structure It is located in first lock beam hole, the other end of the U-shape structure is engaged with second lock beam hole.
- 6. padlock according to any one of claims 1 to 5, it is characterised in that the lock body is powder metallurgical technique or metal The disposable compacting sintering of extrusion process is formed or is made by the cleaved processing of section bar.
- 7. padlock according to claim 1, it is characterised in that the lock body both sides are assembled with side cover plate, the side cover plate It is fixedly connected with the lock body.
- 8. padlock according to claim 1, it is characterised in that the side cover plate is consolidated with shell by welding manner It is fixed.
- 9. padlock according to claim 1, it is characterised in that the side cover plate is by dripping obtained by modeling technique.
- 10. padlock according to claim 1, it is characterised in that the shell is connected or sold by glue with the lock body Nail connection or riveting or tight swollen technique make both close-fittings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711166480.9A CN107780722B (en) | 2017-11-21 | 2017-11-21 | Padlock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711166480.9A CN107780722B (en) | 2017-11-21 | 2017-11-21 | Padlock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107780722A true CN107780722A (en) | 2018-03-09 |
| CN107780722B CN107780722B (en) | 2023-04-07 |
Family
ID=61430682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711166480.9A Active CN107780722B (en) | 2017-11-21 | 2017-11-21 | Padlock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107780722B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538028A (en) * | 2019-01-22 | 2019-03-29 | 潘永旺 | A kind of spring padlock |
| CN111434871A (en) * | 2019-01-12 | 2020-07-21 | 傅文澜 | Integrated rectangular lock made of powder metallurgy material and machining process thereof |
| CN112539004A (en) * | 2020-12-10 | 2021-03-23 | 潘永旺 | U-shaped lock |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1690337A (en) * | 2004-04-27 | 2005-11-02 | 艾宝施(香港)有限公司 | Padlock |
| CN201343934Y (en) * | 2008-11-26 | 2009-11-11 | 东莞金銮五金制品有限公司 | Plating padlock |
| US20130014548A1 (en) * | 2011-07-14 | 2013-01-17 | Abus August Bremicker Soehne Kg | Rekeyable lock cylinder, rekeyable padlock and method of rekeying |
| CN204457165U (en) * | 2014-12-04 | 2015-07-08 | 浙江浦江梅花锁业集团有限公司 | A kind of padlock |
| CN106121397A (en) * | 2016-08-29 | 2016-11-16 | 烟台三环科技有限公司 | A kind of can Dismountable high security lock tool |
| CN207739793U (en) * | 2017-11-21 | 2018-08-17 | 浦江县卓业金属制品有限公司 | Padlock |
-
2017
- 2017-11-21 CN CN201711166480.9A patent/CN107780722B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1690337A (en) * | 2004-04-27 | 2005-11-02 | 艾宝施(香港)有限公司 | Padlock |
| CN201343934Y (en) * | 2008-11-26 | 2009-11-11 | 东莞金銮五金制品有限公司 | Plating padlock |
| US20130014548A1 (en) * | 2011-07-14 | 2013-01-17 | Abus August Bremicker Soehne Kg | Rekeyable lock cylinder, rekeyable padlock and method of rekeying |
| CN204457165U (en) * | 2014-12-04 | 2015-07-08 | 浙江浦江梅花锁业集团有限公司 | A kind of padlock |
| CN106121397A (en) * | 2016-08-29 | 2016-11-16 | 烟台三环科技有限公司 | A kind of can Dismountable high security lock tool |
| CN207739793U (en) * | 2017-11-21 | 2018-08-17 | 浦江县卓业金属制品有限公司 | Padlock |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111434871A (en) * | 2019-01-12 | 2020-07-21 | 傅文澜 | Integrated rectangular lock made of powder metallurgy material and machining process thereof |
| CN109538028A (en) * | 2019-01-22 | 2019-03-29 | 潘永旺 | A kind of spring padlock |
| CN112539004A (en) * | 2020-12-10 | 2021-03-23 | 潘永旺 | U-shaped lock |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107780722B (en) | 2023-04-07 |
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Effective date of registration: 20230314 Address after: 322200 182 yidianhong Avenue, Pujiang County, Jinhua City, Zhejiang Province Applicant after: PUJIANG ZHUOYE METAL PRODUCT CO.,LTD. Address before: 322200 182 yidianhong Avenue, Pujiang County, Jinhua City, Zhejiang Province Applicant before: PUJIANG ZHUOYE METAL PRODUCT CO.,LTD. Applicant before: Pan Zhuowei |
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