CN1297722C

CN1297722C - Safety extra door lock with high anti-torsion and impact strength

Info

Publication number: CN1297722C
Application number: CNB031470106A
Authority: CN
Inventors: 阮家强
Original assignee: HUAMEI HARDWARE PRODUCT CO Ltd TAISHAN
Current assignee: Huayi Hardware Product Co., Ltd., Taishan
Priority date: 2003-09-26
Filing date: 2003-09-26
Publication date: 2007-01-31
Anticipated expiration: 2023-09-26
Also published as: CN1529029A

Abstract

The present invention relates to a safety extra door lock with high anti torsion and impact strength, which comprises a lock liner and a lock tongue component. The present invention is characterized in that the lock liner is fixed in an outer hollow end cover, the front end of the outer hollow end cover is opened, and the back end of the outer hollow end cover is sealed. The outer extension pulling arm of the lock liner passes through the sealed end of the outer end cover is connected with a turn knob which is arranged on an inner end cover; an anti-torsion stopping block is arranged between the outer end cover and the inner end cover. The stopping block is composed of a columnar body and a block-shaped body, wherein the columnar body is connected with a door, the block-shaped body which is perpendicular to the columnar body is used for stopping, and the columnar body and the block-shaped body are integrally connected with each other; both sides of the inner surface of the block-shaped body are respectively attached to the positioning surface of the stopping block which is arranged on the outer end cover and the inner end cover. The present invention can effectively enhance the anti-torsion properties and the impact strength of the extra door lock, prevent the damage of the torsion and the impact force to the extra door lock, and ensure the safe use of the extra door lock.

Description

The additional door lock of safety with antitorque commentaries on classics and impact strength

Technical field

The present invention relates to additional door lock, particularly relate to a kind of external force of can resisting, and its antitorque commentaries on classics and impact strength reach the additional door lock of safety of antitorque commentaries on classics of having of American National Standard one-level and impact strength the reversing and impact damage of additional door lock.

Background technology

Can see the lock of various ways in people's life, comprise the concealed type lock on the objects such as being fixed on door, case, bag and hang over the padlock that uses on the snap close that is fixed on the object, wherein door lock is that people contact and use maximum a kind of locks.Most of door locks all are to be contained in door and doorframe joint portion, by stretching out of dead bolt door and doorframe are lockable, and by key lock are opened in the dead bolt withdrawal.In order to guarantee safety, also be provided with an additional lock on some door, the lock gall of most additional locks all has an end cap that diameter is bigger, and the thin cylindrical case of a wall is equipped with in the lock gall outside, lock gall and shell are contained in the installing hole on the door, and lock gall is fixed with two screws and internal end cover.Because lock gall is only fixed by two screws, not only lack necessary support and stopping means, and lack and prevent the structure that lock gall and shell reverse at its inner end, thereby when lock gall is subjected to the torsion of outside, the screw that connects lock gall is easy to be twisted off, and lock gall is deviate from; When the lock gall external surface was subjected to the continuous bump of external force, the end cap of lock gall was easy to be damaged, and lock gall and shell are separated, and the screw that connects lock gall is damaged and make lock gall by the inboard of door by knocking-on, thereby can be at an easy rate with door-lock opening.Because the security protection effect of additional lock is even more important, thereby each state all formulates strict national standard, in the national standard ANSI/BHMAA156.5-2001 of " additional lock and relevant product " of the U.S., the torsional test standard of lock gall courage body and shell is decided to be three grades, and wherein one-level is 120 ft lbf-feet (160Nm); The courage over glaze of lock is decided to be three grades to the vertical impact test standard of impact test and shell, and wherein one-level is 10 to hit 75 foot-pound forces (100J).By this standard as seen, it is very high reversing of additional lock being required with impact strength.

Summary of the invention

The present invention is intended to address the above problem, and provide a kind of safety to add door lock with antitorque commentaries on classics and impact strength, with the antitorque commentaries on classics and the impact strength of the additional door lock of effective raising, prevent because torsion and bump to the destruction of additional door lock, guarantee the safety that additional door lock uses.

For achieving the above object, the invention provides a kind of additional door lock of safety with antitorque commentaries on classics and impact strength, should comprise lock gall and dead bolt assembly by additional door lock, it is characterized in that, it is uncovered that described lock gall is fixed in front end, in the hollow outer end of the back-end closure lid, the blind end that overhanging group of arm of lock gall passes outer end cap and dead bolt assembly and the knob that is contained on the internal end cover are connected, and are provided with antitorque commentaries on classics scotch between outer end cap and the internal end cover.

Outer end cap is roughly frustum, which is provided with the round cavity that an installing lock gall that is surrounded by annular sidewall and base plate is used, the blind end of outer end cap extends outward a protuberance by base plate, this protuberance is provided with a scotch locating surface and a dead bolt assembly locating surface, is provided with lock gall and fixes and positions the hole on base plate.

Internal end cover is a discoid body, which is provided with the knob connecting hole and with end cap on the corresponding lock gall fixing hole of lock gall fixing hole, on the internal end cover a relative side with outer end cap be provided with one with outer end cap on the protuberance of protuberance symmetry, this protuberance be provided with the outer end cap protuberance on the scotch locating surface of scotch locating surface symmetry.

Scotch constitutes with the blocks that vertical with it stop is used by be connected the column of usefulness with door, both are connected as a single entity, wherein the inner surface both sides of blocks fit in respectively on the scotch locating surface on outer end cap and the internal end cover, and blocks central authorities are provided with the lock gall locating slot.

The bottom end face of the scotch locating surface on outer end cap and the internal end cover, dead bolt assembly locating surface and outer end cap and internal end cover is perpendicular.

Contribution of the present invention is that it efficiently solves the antitorque commentaries on classics and the impact resistance problem of additional door lock, has increased substantially antitorque commentaries on classics and the impact strength and the security performance thereof of additional door lock.Because outer end cap that should additional door lock is the structure of end sealing and hole wall and the base plate with thickening, and lock gall and outer end cap are connected as one, thereby can resists the continuous bump of external force and can not be damaged; Simultaneously, the present invention is owing to be provided with scotch between outer end cap and internal end cover, and this scotch reaches outward with door respectively, internal end cover is connected, and it can effectively stop outer end cap and the rotation of lock gall under very strong outside twisting force, thereby has improved the twisting resistance intensity of additional door lock greatly.The continuous bump that the invention enables extra gate to be locked in strong torsion and external force can not be damaged down.By U.S. ANSI/BHMAA156.5-2001 national standard carry out should additional door lock lock gall and the torsional test and the courage face impact test of outer end cap show, the anti-torsional strength of this door lock and impact resistance intensity all reach primary standard, therefore have very high safety in utilization.

Description of drawings

Fig. 1 is an overall structure schematic perspective view of the present invention.

Fig. 2 is a parts exploded perspective schematic diagram of the present invention.

Fig. 3 is a sectional view of the present invention, and wherein Fig. 3 A is the longitudinal sectional view along the lock gall axis; Fig. 3 B is the transverse sectional view along the lock gall axis.

Fig. 4 is scotch of the present invention and outer end cap and door connection diagram.

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.

Additional door lock of the present invention is the additional lock that has only single outer lock gall, and Fig. 1 shows monnolithic case of the present invention, and its detailed structure is then illustrated by Fig. 2, Fig. 3.As Fig. 1, the additional door lock of safety with antitorque commentaries on classics and impact strength of the present invention comprises lock gall 10, dead bolt assembly 20, outer end cap 30, internal end cover 40, knob 50 and scotch 60, wherein, lock gall 10 and dead bolt assembly 20 are similar with common extra gate lock construction, repeat no more here.Main points of the present invention are to be provided with antitorque commentaries on classics and impact resistance structure this additional locking, the main member of this structure is outer end cap 30, internal end cover 40 and scotch 60, described outer end cap 30 structures as shown in Figure 2, it is that the front end of being made by brass is uncovered, the hollow lid that is frustum substantially of back-end closure, its central authorities are provided with a round cavity 31 that is surrounded by annular sidewall 32 and base plate 33, for gaining in strength, with the thickening of the thickness of annular sidewall, make it not be vulnerable to external force collision and be out of shape or destroy.On outer end cap base plate 33, be provided with lock gall fixing hole 331 and locating hole 332.Described lock gall 10 is contained in the round cavity 31 of outer end cap (seeing Fig. 3 B), and the reference column 12 of its rear end places in the locating hole 331 on the outer end cap.Because the rear end of lock gall is by the backplanes support of outer end cap, and outer end cap has the sidewall of thickening, so lock gall and outer end cap can be resisted axially and the bump of the external force of vertical direction.On lock gall, be connected with a rotatable overhanging group of arm 11; this group arm is connected with dead bolt assembly 20 and knob 50 respectively; on the rear end face of lock gall, be provided with the screw (not shown) that is connected usefulness with outer end cap with internal end cover, protection and ornamental lock gall protecting cover 13 are housed in the lock gall front portion.For connecting the antitorque scotch of migrating 60, blind end at outer end cap extends outward a protuberance 34 (seeing Fig. 3 B) by plate outer side, this protuberance also constitutes the part of base plate, end away from dead bolt 21 on this protuberance is provided with a vertical scotch plane of orientation 341, be provided with a vertical dead bolt assembly plane of orientation 342 by dead bolt one end on the protuberance, the bottom end face of the scotch locating surface 341 on the outer end cap, dead bolt assembly locating surface 342 and outer end cap is perpendicular.As Fig. 2, the discoid body that described internal end cover 40 is made for brass, which is provided with knob connecting hole 41 and lock gall fixing hole 42, lock gall fixing hole 42 is corresponding with lock gall fixing hole 331 positions on the outer end cap 30, on the internal end cover with outer end cap 30 relative sides be provided with one with outer end cap on the protuberance 43 of protuberance 34 symmetries, this protuberance be provided with the outer end cap protuberance on the scotch locating surface 431 of scotch locating surface symmetry, the bottom end face of this scotch locating surface and internal end cover is perpendicular.As Fig. 3 A, the knob 50 that brass is made is housed on internal end cover, this knob by swing handle 51 and with one of joint pin 52 constitute, its joint pin 52 passes the connecting hole 41 on the internal end cover, and it is inboard by band internal tooth back-up ring 53 and spring washer 54 location in internal end cover, knob 50 is formed with internal end cover 40 be rotatably connected, have the cross connecting hole 521 that arm 11 is connected usefulness of dialling at the joint pin center with lock gall.Knob 50 is used for indoor by rotating direct pinning or opening additional lock.As Fig. 3 B, overhanging group of arm 11 of lock gall passes lock gall locating hole 332 on the outer end cap base plate 33 and the cross connecting hole 21 on the dead bolt assembly 20 and inserts in the cross connecting hole 521 on the knob joint pin 52, and knob 50 is connected with lock gall.Lock gall and inside and outside end cap pass lock gall fixing hole 42 on the internal end cover, lock gall fixing hole 331 on the outer end cap and the screw on the lock gall rear end face with two screws 80 and fix.

Key character of the present invention is to be provided with an antitorque commentaries on classics scotch 60 between outer end cap 30 and internal end cover 40, shown in Fig. 2, Fig. 3 B, this scotch is made of column 61 and blocks 62, wherein column can be circular, square or other shape, be cylindrical in this example, it is used for being connected with the door body.The external surface of blocks is a cambered surface, and inner surface is the plane, and its cross section is arc, and its central authorities are provided with dead bolt assembly locating slot 621, and blocks is used to stop outer end cap in the twisting force lower edge clockwise or be rotated counterclockwise.Column 61 and blocks 62 vertical mutually and both be connected as a single entity, its integral body is T-shaped.As shown in Figure 4, when installing and using, the cylinder 61 of scotch is embedded in the installing hole pre-drilled on the door body 70, and the inner surface both sides that make blocks 62 fit in respectively on the scotch locating surface 341,431 on outer end cap and the internal end cover, two arch laterals of blocks withstand outer end cap 30 and internal end cover 40 respectively, and the rear end of dead bolt assembly places in the lock gall locating slot 621 on the scotch.This scotch 60 is made by engineering plastics, makes additional being locked in can not damage outer end cap, internal end cover and dead bolt assembly when being subjected to twisting force.

When outer end cap was subjected to twisting force, because the column 61 of antitorque commentaries on classics scotch 60 is fixed on the body, the plane of its blocks 62 then propped up outer end cap, makes outer end cap not rotate, and therefore can effectively prevent the destruction of torsion to additional lock.When lock gall 10 is subjected to the external force axial impact, the lock gall rear end is owing to be subjected to the support of outer end cap base plate, and 60 pairs of outer end caps of scotch also have supporting role, and the base plate of outer end cap and wall thickness are thicker in addition, so lock gall and outer end cap can effectively be resisted the continuous bump of external force and can not damage.When impact occurred in from top to bottom vertical direction, because the outer end cap hole wall is thicker, and is linked to be an integral body with lock gall and internal end cover, thereby this lock also can be resisted strong impaction radially.

Claims

1, the additional door lock of safety that has antitorque commentaries on classics and impact strength, comprise lock gall (10) and dead bolt assembly (20), it is characterized in that, described lock gall (10) is fixed in that front end is uncovered, in the hollow outer end of the back-end closure lid (30), the blind end that the overhanging group of arm (11) of lock gall passes outer end cap (30) and dead bolt assembly (20) and the knob (50) that is contained on the internal end cover (40) are connected, and are provided with antitorque commentaries on classics scotch (60) between outer end cap (30) and the internal end cover (40).

2, the additional door lock of safety with antitorque commentaries on classics and impact strength according to claim 1, it is characterized in that, described outer end cap (30) is a frustum, which is provided with the round cavity (31) of installing lock gall (a 10) usefulness that surrounds by annular sidewall (32) and base plate (33), the blind end of outer end cap extends a protuberance (34) by base plate, this protuberance is provided with a scotch locating surface (341) and a dead bolt assembly locating surface (342), is provided with lock gall fixing hole (331) and locating hole (332) on base plate.

3, the additional door lock of safety with antitorque commentaries on classics and impact strength according to claim 2, it is characterized in that, described internal end cover (40) is a discoid body, which is provided with knob connecting hole (41) and with outer end cap (30) on the corresponding lock gall fixing hole of lock gall fixing hole (331) (42), on the internal end cover a relative side with outer end cap (30) be provided with one with outer end cap on the protuberance (43) of protuberance (34) symmetry, this protuberance be provided with the outer end cap protuberance on the scotch locating surface (431) of scotch locating surface symmetry.

4, the additional door lock of safety with antitorque commentaries on classics and impact strength according to claim 3, it is characterized in that, the blocks (62) that described scotch (60) is used by column (61) that is connected usefulness with door and vertical with it stop constitutes, both are connected as a single entity, wherein the inner surface both sides of blocks (62) fit in respectively on scotch locating surface (341) on outer end cap and the internal end cover, (431), and blocks (62) central authorities are provided with lock gall locating slot (621).

5, the additional door lock of safety with antitorque commentaries on classics and impact strength according to claim 3, it is characterized in that the bottom end face of the scotch locating surface (341) on described outer end cap (30) and the internal end cover (40), (431), dead bolt assembly locating surface (342) and outer end cap and internal end cover is perpendicular.