CN1321253C - Strong tension resistant construction for door lock core - Google Patents
Strong tension resistant construction for door lock core Download PDFInfo
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- CN1321253C CN1321253C CNB2004100272464A CN200410027246A CN1321253C CN 1321253 C CN1321253 C CN 1321253C CN B2004100272464 A CNB2004100272464 A CN B2004100272464A CN 200410027246 A CN200410027246 A CN 200410027246A CN 1321253 C CN1321253 C CN 1321253C
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- lock
- tension member
- lock gall
- lock body
- hole
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- 238000010276 construction Methods 0.000 title 1
- 238000009434 installation Methods 0.000 claims description 14
- 239000008188 pellet Substances 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000011258 core-shell material Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000009864 tensile test Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The present invention relates to a high tension resistant structure of a lock core of a door lock. The structure comprises a lock body and a lock core assembly which is fixed in the lock body. The present invention is characterized in that a tension resistant member which can resist the damage of the high tension of the lock core is arranged between the lock core assembly and the lock body, and at least one stop part which causes the member and the lock core assembly not to do axial movement in the lock body under the condition of high tension, and a lock core fixing part which causes a core shell of the lock core not to rotate and do axial movement. The present invention causes the tension resistant strength of the lock core to reach primary standard, and therefore, the tension resistant strength and the safety of the lock core can be improved effectively to cause the present invention to resist the damage of the axial high tension.
Description
Technical field
The present invention relates to door lock, particularly relate to a kind of tensile strength and reach the American National primary standard, can prevent the anti drawing strongly power structure of the door lock lock gall that lock gall is pulled out in the lock body vertically under strong external force effect.
Background technology
Lock is the most general a kind of safety appliance that people use, on object that needs such as door, body door and the case of building, bag open and close or utensil, have a wide range of applications, wherein door lock is that people contact and use maximum locks, although form is different, but its basic structure comprises lock body, be contained in lock gall in the lock body, be contained in the pellet shot from a slingshot group in lock body and the lock gall and the driving lever that is connected with lock gall etc., wherein lock gall is the heart of door lock, the functional reliability and the safety in utilization of its direct relation door lock.Referring to Fig. 1, traditional door lock lock gall is in the lock gall hole that is directly installed in the lock body mostly, and is screwed (seeing Figure 1A), though easy for installation, also there is open defect.Because lock gall 20 is directly to be contained in the lock body 10, its suffered axial force mainly acts on the drive end bearing bracket 14 of lock body, and the drive end bearing bracket wall thickness is thinner, when lock gall when keyhole one end is subjected to axial tension, the front end face 21a of its pellet shot from a slingshot group installation portion 21 forms pressure (seeing Figure 1B) to the drive end bearing bracket of lock body, can't bear big pressure because the drive end bearing bracket wall thickness is thin, under stronger axial tension effect, be easy to generate and break and lock gall can be drawn out easily, thereby door lock is damaged and loses safety effect.Arrive user's safety in utilization based on the security protection interactively of door lock, therefore more and more higher to the requirement of its security performance.The concrete standard and the method for test have all been formulated to the tensile strength of lock gall in different countries and regions, and as in the U.S. BHMA five metals building standard this tensile strength being divided into three grades, wherein one-level is 11000N, two 4800N very, and three grades is 2300N.Traditional door lock is because no tensile structure, thereby all can't reach the primary standard of anti drawing strongly power, so safety in utilization is relatively poor.
Summary of the invention
The present invention is intended to address the above problem, and provide a kind of tensile structure that between lock gall and lock body, is provided with, make the tensile strength of lock gall reach primary standard, thereby can effectively improve the tensile strength and the safety of lock gall, make it to resist the anti drawing strongly power structure of the door lock lock gall that axial strong pulling force destroys.
For achieving the above object, the invention provides a kind of anti drawing strongly power structure of door lock lock gall, this structure comprises lock body and is fixed in the interior lock gall assembly of lock body, it is characterized in that, between lock gall assembly and lock body, be provided with one and can resist the tension member that the lock gall strong pulling force destroys, have at least one on this member and make it and lock gall assembly under strong pulling force, can not in lock body, do axially movable retainer and one to make lock gall courage shell can not rotate and do axially movable lock gall fixed part.
Lock body is provided with the axially extending bore that is roughly 8 fonts that is made of lock gall hole and tension member hole, the shape in lock gall hole and tension member hole is corresponding with the profile of lock gall assembly and tension member respectively, and in the tension member hole, be provided with tension member on corresponding at least one stop surface of retainer.
Stop surface is vertical substantially with the axis in tension member hole.
Tension member is the blocks of being made by high strength steel, its external surface be with lock body on the corresponding cambered surface of inner surface configuration in tension member hole, on the tension member external surface, be provided with rank shape retainer, being provided with a front end that embeds for the pellet shot from a slingshot group installation portion on the lock gall assembly vertically at the middle part of tension member seals, the U-lag of rear end opening, the bottom shape of tension member is corresponding with the courage hull shape shape of lock gall assembly.
The retainer of tension member is to cut out two in the external surface both sides of tension member to be roughly L shaped terrace, and vertical plane wherein is a stop surface, and it contacts with stop surface in the tension member hole.
Stop surface in the lock body tension member hole and the stop surface on the tension member can be plane or cambered surface.
Tension member is contained in the tension member hole on the lock body, its front end face is mutually concordant with the front end face of lock body, the stop surface of its both sides is resisted against on the stop surface in the tension member hole, pellet shot from a slingshot group installation portion on the lock gall assembly embeds in the U-lag of tension member, and the front end face of pellet shot from a slingshot group installation portion is resisted against on the bottom surface of described U-lag.
The lock gall assembly is fixed by compressing tablet and lock body in its back-end.
Contribution of the present invention is that it efficiently solves the anti drawing strongly power problem of door lock lock gall, has increased substantially the tensile strength and the security performance thereof of door lock.Owing between lock gall and lock body, be provided with tensile structure, can effectively limit moving axially of lock gall by this structure, external force is born by lock body and tension member respectively the active force of lock gall, thereby greatly improved the supporting capacity of lock gall axial tension.The lock gall tensile test (as Fig. 3) of being undertaken by U.S. BHMA national standard shows that the tensile strength of this lock has reached the primary standard of defined, and promptly lock gall can bear the axial tension of 11000N.Significantly improving of lock gall tensile strength also makes the security performance of lock improve greatly.Characteristics such as the present invention also has simple in structure, and is easy to implement, easy for installation, with low cost.
Description of drawings
Fig. 1 is a common lock lock gall syndeton schematic diagram, and wherein Figure 1A is an exploded view, and Figure 1B is a lock body force part schematic diagram.
Fig. 2 is a parts exploded perspective schematic diagram of the present invention.
Fig. 3 is a parts of the present invention force part structural representation, and wherein, Fig. 3 A is a lock body force part schematic diagram, and Fig. 3 B is a lock gall assembly force part schematic diagram, and Fig. 3 C, Fig. 3 D are tension member force part schematic diagrames.
Fig. 4 is a structure sectional view of the present invention, and wherein Fig. 4 A is a partial perspective cutaway view, and Fig. 4 B is the A-A sectional view.
Fig. 5 is monnolithic case figure of the present invention.
The specific embodiment
The following example is to further explanation of the present invention and explanation, and the present invention is not constituted any limitation.
Consult Fig. 2, Fig. 4, the anti drawing strongly power structure of door lock lock gall of the present invention is to be provided with for the tensile strength that improves the door lock lock gall, this structure comprises lock body 10 and is fixed in the interior lock gall assembly 20 of lock body, wherein lock body 10 is cylinders that kirsite is made, lock body is provided with the axially extending bore 11 that is roughly 8 fonts, this through hole is made of lock gall hole 111 and tension member hole 112, the shape in lock gall hole and tension member hole is corresponding with the profile of lock gall assembly 20 and tension member 30 respectively, and they are respectively applied for installs lock gall assembly 20 and tension member 30.As Fig. 2, Fig. 3 A, in tension member hole 112, be provided with the stop surface 112a of two symmetries on the hole wall at nearly middle part, they are that inwardly to protrude out two cross sections on the hole wall in tension member hole be that arc boss forms, this boss nearly middle part in the tension member hole extends to front end face, make that the rear end in tension member hole is rounded, front end takes the shape of the letter U.Stop surface 112a is arc, and it can be the curved surface of plane, cambered surface or other shape, and it is vertical substantially with the axis in tension member hole 112, makes it more to help resisting axial force.On the rear end face of lock body, be provided with one the locating slot 12 of compressing tablet 40 usefulness is installed, and both sides, tension member hole respectively are provided with the fixedly screw 13 used of compressing tablet over against tension member hole 112.
Main points of the present invention are, between lock gall assembly 20 and lock body 10, be provided with one and can resist the tension member 30 that the lock gall strong pulling force destroys, have at least one on this member and make it and lock gall assembly under strong pulling force, can not in lock body, do axially movable retainer 31 and one to make lock gall courage shell can not rotate and do axially movable lock gall fixed part 32.The structure of tension member 30 is illustrated by Fig. 2, Fig. 3, at first consults Fig. 3 C, 3D, and tension member 30 is a blocks, it is made by high strength steel, its surface after heat treatment, mechanical properties such as surface strength and hardness all strengthen greatly, make it to have very strong resistance to compression, performance such as anti-drilling.The external surface of tension member be with lock body on the corresponding arc surface of inner surface configuration in tension member hole 112, be provided with rank shape retainer 31 on its outer surface, this retainer 31 is inwardly to cut out two at nearly middle part, the external surface both sides of tension member to be roughly L shaped terrace, vertical plane 31a wherein is a stop surface, it also is main stress surface, it contacts with stop surface 112a in the tension member hole, therefore can be the curved surface of plane, cambered surface or other shape corresponding with stop surface 112a.Described lock gall fixed part 32 is provided with front end sealing vertically at the middle part of tension member, the U-lag of rear end opening, and the shape of U-lag is corresponding with the pellet shot from a slingshot group installation portion 21 on the lock gall assembly 20, and pellet shot from a slingshot group installation portion can be embedded wherein.And the with it contact corresponding of the bottom shape of tension member with courage shell 22 shapes of lock gall assembly.Shown in Fig. 4 A, Fig. 4 B, tension member 30 is contained in the tension member hole 112 on the lock body 10, its front end face 33 is mutually concordant with the front end face of lock body 10, and the stop surface 31a of its both sides is resisted against on the stop surface 112a in the tension member hole, and moving axially of tension member is restricted.Lock gall assembly 20 shown in Fig. 3 B is packed in the lock gall hole 111 of lock body, the rectangle pellet shot from a slingshot group installation portion 21 on its top embeds in the U-lag 32 of tension member, the front end face 21a of pellet shot from a slingshot group installation portion is resisted against on the bottom surface 32a of described U-lag 32, make the courage shell 22 of lock gall assembly to move vertically, can not rotate.Lock gall assembly 20 is fixing with lock body 10 by compressing tablet 40 in its back-end, and compressing tablet places the compressing tablet locating slot 12 on the lock body, and with screw 41 itself and the screw 13 on the lock body is fixed, and the monnolithic case after member of the present invention is assembled as shown in Figure 5.
The present invention to the tensile test of lock gall shown in Fig. 4 A, on lock gall assembly 20, bore an axial hole 23, in the hole, be screwed into bolt 50, and impose continuous pulling force by 50 pairs of lock gall assemblies of bolt with puller system, when the lock gall assembly is subjected to pulling force, the front end face 21a of its pellet shot from a slingshot group installation portion can forwards move with the lock gall assembly, and the bottom surface 32a that abuts to the U-lag 32 of tension member 30 goes up (seeing Fig. 3 C), its axially-movable is prevented from, meanwhile, tension member 30 is subjected to the thrust of lock gall assembly also to be desired to move forward, when the stop surface 31a of its both sides (seeing Fig. 3 D) abuts to stop surface 112a in the lock body, its axially-movable also is prevented from, because the stress surface of lock body and tension member is positioned at the lock body middle part, the length that means the force part is about 1/2 of lock body length, therefore only to bear pulling force by the lock body drive end bearing bracket much bigger for its more common lock gall of ability that bears pulling force, test shows, the tensile strength of this lock lock gall reaches the primary standard of U.S. BHMA, promptly under the strong pulling force effect of 11000N, door lock still can be used safely.
Claims (5)
1, a kind of anti drawing strongly power structure of door lock lock gall, comprise lock body (10) and be fixed in the interior lock gall assembly (20) of lock body, it is characterized in that, between lock gall assembly (20) and lock body (10), be provided with one and can resist the tension member (30) that the lock gall strong pulling force destroys, have at least one on this member and make it and lock gall assembly under strong pulling force, can not in lock body, do axially movable retainer (31) and one to make lock gall courage shell can not rotate and do axially movable lock gall fixed part (32); Described lock body (10) is provided with the axially extending bore that is roughly 8 fonts (11) that is made of lock gall hole (111) and tension member hole (112), the shape in lock gall hole and tension member hole is corresponding with the profile of lock gall assembly (20) and tension member (30) respectively, and in tension member hole (112), be provided with tension member on corresponding at least one stop surface of retainer (31) (112a); Described tension member (30) is the blocks of being made by high strength steel, its external surface be with lock body on the corresponding cambered surface of inner surface configuration in tension member hole (112), on the tension member external surface, be provided with rank shape retainers (31), being provided with a front end that embeds for the pellet shot from a slingshot group installation portion (21) on the lock gall assembly (20) vertically at the middle part of tension member seals, the U-lag of rear end opening (32), the bottom shape of tension member is corresponding with courage shell (22) shape of lock gall assembly; Described tension member (30) is contained in the tension member hole (112) on the lock body (10), its front end face is mutually concordant with the front end face of lock body (10), the stop surface of its both sides (31a) is resisted against on the stop surface (112a) in the tension member hole, pellet shot from a slingshot group installation portion (21) on the lock gall assembly (20) embeds in the U-lag (32) of tension member, and the front end face (21a) of pellet shot from a slingshot group installation portion is resisted against on the bottom surface (32a) of described U-lag (32).
2, the anti drawing strongly power structure of door lock lock gall according to claim 1 is characterized in that, described stop surface (112a) is vertical substantially with the axis of tension member hole (112).
3, the anti drawing strongly power structure of door lock lock gall according to claim 1, it is characterized in that, the retainer of described tension member (31) is to cut out two in the external surface both sides of tension member to be roughly L shaped terrace, vertical plane wherein (31a) is a stop surface, and it contacts with stop surface (112a) in the tension member hole.
4, the anti drawing strongly power structure of door lock lock gall according to claim 3 is characterized in that, stop surface (112a) in the described lock body tension member hole and the stop surface (31a) on the tension member are plane or cambered surface.
5, the anti drawing strongly power structure of door lock lock gall according to claim 1 is characterized in that, described lock gall assembly (20) is fixing by compressing tablet (40) and lock body (10) in its back-end.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100272464A CN1321253C (en) | 2004-05-13 | 2004-05-13 | Strong tension resistant construction for door lock core |
| HK05103863A HK1071177A1 (en) | 2004-05-13 | 2005-05-09 | Lock enhancement arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100272464A CN1321253C (en) | 2004-05-13 | 2004-05-13 | Strong tension resistant construction for door lock core |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1570334A CN1570334A (en) | 2005-01-26 |
| CN1321253C true CN1321253C (en) | 2007-06-13 |
Family
ID=34480922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100272464A Expired - Fee Related CN1321253C (en) | 2004-05-13 | 2004-05-13 | Strong tension resistant construction for door lock core |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1321253C (en) |
| HK (1) | HK1071177A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2489815A3 (en) * | 2005-04-11 | 2012-11-14 | Keso Ag | Closing device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2060801U (en) * | 1989-12-27 | 1990-08-22 | 魏志武 | Padlock being able to guard against theft |
| CN2143649Y (en) * | 1992-12-17 | 1993-10-13 | 廖传东 | Ball shape door lock core and its key |
| CN2362998Y (en) * | 1999-01-23 | 2000-02-09 | 台山华一五金制品有限公司 | Multi-layer lock with stretching-resistant and shock-resistant bolt |
| CN2416183Y (en) * | 2000-05-15 | 2001-01-24 | 沈木林 | Cylindrical horizontal lock with improved structure |
| CN2506740Y (en) * | 2001-11-10 | 2002-08-21 | 台山华一五金制品有限公司 | Door lock with high tensile strength core |
-
2004
- 2004-05-13 CN CNB2004100272464A patent/CN1321253C/en not_active Expired - Fee Related
-
2005
- 2005-05-09 HK HK05103863A patent/HK1071177A1/en not_active IP Right Cessation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2060801U (en) * | 1989-12-27 | 1990-08-22 | 魏志武 | Padlock being able to guard against theft |
| CN2143649Y (en) * | 1992-12-17 | 1993-10-13 | 廖传东 | Ball shape door lock core and its key |
| CN2362998Y (en) * | 1999-01-23 | 2000-02-09 | 台山华一五金制品有限公司 | Multi-layer lock with stretching-resistant and shock-resistant bolt |
| CN2416183Y (en) * | 2000-05-15 | 2001-01-24 | 沈木林 | Cylindrical horizontal lock with improved structure |
| CN2506740Y (en) * | 2001-11-10 | 2002-08-21 | 台山华一五金制品有限公司 | Door lock with high tensile strength core |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1570334A (en) | 2005-01-26 |
| HK1071177A1 (en) | 2005-07-08 |
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Owner name: HUAMEI (TAISHAN) HARDWARE CO., LTD. Free format text: FORMER OWNER: TAISHAN HUAYI HARDWARE PRODUCTS CO., LTD. Effective date: 20060707 |
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Effective date of registration: 20060707 Address after: 529231 seaport Road, Guanghai Town, Taishan, Guangdong Applicant after: Huayi Hardware Product Co., Ltd., Taishan Address before: 529231 seaport Road, Guanghai Town, Taishan, Guangdong Applicant before: Huayi Hardware Product Co., Ltd., Taishan |
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Granted publication date: 20070613 Termination date: 20100513 |