CN109488133A

CN109488133A - The safety catch of door

Info

Publication number: CN109488133A
Application number: CN201710817927.8A
Authority: CN
Inventors: 曾文昌
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-09-12
Filing date: 2017-09-12
Publication date: 2019-03-19
Anticipated expiration: 2037-09-12
Also published as: CN109488133B; CN113463995B; CN113463995A

Abstract

The present invention provides a kind of safety catch, is set between a door-plate of vehicle and a door-plate fixing seat comprising have: a pedestal and a single direction locking mechanism.The pedestal is set in the door-plate.The single direction locking mechanism includes a lock-bit module and a connecting rod element.The lock-bit module is set within the pedestal and can be switched between a locked position of coupler and a disengaged position.One end of the connecting rod element is fixed in the door-plate fixing seat and the other end protrudes into the pedestal and corresponds to the lock-bit module.Wherein, when lock-bit module is located at a locked position of coupler, which can not carry out the movement on a first direction relative to the connecting rod element together with the pedestal, so the door-plate, which will be unable to be turned on, to be closed；And when lock-bit module is located at a disengaged position, which just can be turned on and close.

Description

The safety catch of door

Technical field

The present invention relates to a kind of safety catches, espespecially a kind of to be set on the car door of vehicle, and can be by door-plate It is locked automatically when being opened into certain predetermined angle, forced user must press brake component again and door-plate could be opened into more greatly Angle, to reach the safety catch for enabling the door-plate excessively not open.

Background technique

The car door of general vehicle is all mostly the open mode of stepless on the market at present, once it is big or oblique to encounter wind When the shape of hillside fields, often cause suddenly excessively to open due to door-plate is influenced by wind-force or gravity when opening-door plate, not only Easily make door panel damage failure or keep occupant injured when getting on or off the bus or scaring, and is possibly even caused to pass through its vehicle Other other passerbys or speedy tribe knock the prominent door-plate opened and injured.Accordingly, it is considered to above-mentioned door-plate open it is various it is dangerous because Element, therefore there are the R&D motives of the safety catch of door of the present invention to generate, to benefit the safety of car user.

The present invention is mainly the door-plate safety according to vehicle as improved emphasis, the safety catch of this is enabled to exist A preset safe opening angle can be possessed in actual use, unlatching size needed for further providing user is in safety Make the change of motor-driven property in range, being formed, there is two sections or more of opening-door plate angle to promote door-plate safety catch, With increase in degree of safety service truck when opening-door plate with the personal safety outside vehicle.No matter that is, in the car or vehicle outside all It can be reached by the safety catch of this with unification door knob or a brake component and door-plate is opened and is fixed on simultaneously appropriate Default fixed angle, making door-plate not will receive the traction of external force and excessively opens suddenly, cause using upper safe doubt also into The safety coefficient of one step raising vehicle.

Applicant in this case was once (hereinafter referred to as special with regard to multinational (area) patent of door-plate safety catch application as the aforementioned Case before benefit), comprising: TaiWan, China patent announcement I521128 case, PCT Publication WO2012075681 (A1) case, China Patent announcement CN 103154412B case, 9371672 case of U.S. Patent Bulletin number, 5943935 case of Japan Patent certificate number, moral State patent publication No. DE112011104766 (T5) case.The technology of the applied patent case of applicant can be provided certainly Car door can be avoided when door-plate is opened and reaches a predetermined angular automatically into lock state because of user during unlatching The extraneous factors such as carelessness or strong wind, slope cause door-plate suddenly excessively to open and cause danger.User is such as intended to open on door-plate When opening greater angle, pressing brake component or door knob (that is, being located at the switch on door-plate) must will be gone door-plate could to be opened again Greater angle is opened, can be achieved the purpose that really safe.However, the patent case still has the nibs that one flaw cannot mar the jade, it is exactly The slight sound that click is drawn, click is drawn can be issued because of the slippage movement of unidirectional ratchet during shutdown, and master of the invention Syllabus is exactly the effect of overcoming this nibs, and then reach the low noise safety catch of door.

Summary of the invention

The main object of the present invention is tied up in the safety catch for providing a kind of, can preset door-plate in being opened into certain It being locked automatically when angle, forced user must operate brake component or door knob again to be opened into greater angle door-plate, with Reach and the door-plate is enabled will not excessively to open to inexpectancy.Also, more by sliding comprising unilateral bearing, ring gear, lock-bit piece and lock-bit The lock-bit module that block is constituted, to reach the low noise effect for all keeping quiet tone-off in door-plate unlatching and closing course.

Another object of the present invention is tied up in the safety catch for providing a kind of, the safety catch of this is with class Like door-hinge hinge (Door Hinge) structure setting between door-plate and door-plate fixing seat.

In order to achieve the above object, the present invention provides a kind of safety catch, it is set to a door-plate and a door-plate is solid Between reservation；The door-plate can carry out relative to the door-plate fixing seat rotarily open and closing motion；The safety arrestment of this fills It sets and includes:

One pedestal is set on the door-plate；When door-plate carries out the breakdown action relative to the door-plate fixing seat, the seat Body is mobile toward the first direction relative to door-plate fixing seat；Relatively, when door-plate carries out the pass relative to the door-plate fixing seat When closing movement, the pedestal is mobile toward the second direction relative to door-plate fixing seat；

One single direction locking mechanism comprising have a lock-bit module and a connecting rod element, which can be single The function of displacement locking is provided to the connecting rod element on direction；Wherein, the lock-bit module be set within the pedestal and and pedestal It interlocks；One end of the connecting rod element is fixed in the door-plate fixing seat and the other end protrudes into the pedestal and corresponds to the lock-bit Module；Also, the lock-bit module can be switched between a locked position of coupler and a disengaged position；Wherein, when lock-bit module is located at When the locked position of coupler, which can not carry out the shifting relative to the connecting rod element in the first direction together with the pedestal It is dynamic, so the door-plate will be unable to be carried out breakdown action, but the lock-bit module can still be carried out together with the pedestal this second Relative to the movement of the connecting rod element on direction, so the door-plate can be by carry out closing motion；And it is somebody's turn to do when lock-bit module is located at When disengaged position, which can be by carry out breakdown action and closing motion；And

One elastic element is incorporated into the lock-bit module, can enable the lock-bit module that can keep in the state of being not affected by external force On the locked position of coupler；

Wherein, which further includes having: a unilateral bearing, a ring gear, a two-way bearing, a lock-bit piece, Yi Jiyi Lock-bit sliding block；One outer portion of the unilateral bearing is fixed on an inner ring surface of the ring gear, and in an external annular surface of the ring gear It is equipped with a gear part, and the external annular surface of the ring gear is fixed on an internal ring portion of the two-way bearing；The two-way bearing One outer portion is fixed on the pedestal；The lock-bit piece is fixed on an internal ring portion of the unilateral bearing；The lock-bit sliding block is located at should In pedestal and abut in the lock-bit piece, it can be unidirectional to this by the lock-bit sliding block and the state of supporting of the lock-bit piece between the two The internal ring portion of bearing provides the function of a fulcrum force, makes the gear part that can only carry out unidirectional rotation；When lock-bit sliding block by One external force and when leaving the lock-bit piece, which can carry out bidirectional rotation；

Wherein, which has a tooth row it with the gear part remains meshing state；Also, work as the lock-bit mould When block is located at the locked position of coupler, which is to be resisted against the lock-bit piece, and when the lock-bit module is located at the disengaged position, The lock-bit sliding block leaves the lock-bit piece.

In a preferred embodiment, the safety catch of this further includes having a playback element and a locating module；

Wherein, which includes: a locating detent and corresponds to each other a positioning block of cooperation with the locating detent；Its In, which is set on the pedestal, and the locating piece is then fixed on the lock-bit sliding block of the lock-bit module；

Wherein, the connecting rod element is fixed in a connecting pin of the playback element, and the position of a driving end of the playback element It sets and then corresponds to the locating detent；

Wherein, a first end of the connecting rod element is articulated in the door-plate fixing seat, relies on an external force by the lock-bit mould Block drive makes it switch to the disengaged position, and the locating piece is enabled to be positioned by the hook of the locating detent, and protects lock-bit module It holds in the disengaged position；When the door-plate is pushed open by the door-plate fixing seat to the angle for meeting or exceeding scheduled first angle θ 1 When, the driving end of the playback element can will push the locating detent, and the locating piece is made to be detached from the locating detent and no longer be lived by hook； At this point, the lock-bit module can be elastic recovery to the locked position of coupler by the elastic force of the elastic element, so that when the door-plate is opened into After first angle θ 1 can monodirectional locking on the door-plate fixing seat.

In a preferred embodiment, a circumference of the lock-bit piece is made of plural line segment, and non-circular arch dam； The lock-bit sliding block, which has, to be included: a slope, the pull rod extended from the one side of the slope and is located at pull rod end One head at end；The slope is described unidirectional to provide for being resisted against a certain line segment of the circumference of the lock-bit piece The function of locking mechanism；The elastic element is set on the pull rod, pulls the head that can drive the lock-bit sliding block by external force, So that the slope is detached from the line segment of the circumference of the lock-bit piece, and then allows the gear part that can carry out bidirectional rotation.

In a preferred embodiment, the safety catch of this further includes one first draught line and a door knob；Its In, which connects a fixing end of first draught line, and a connecting pin of first draught line is linked in the lock-bit sliding block, into And the lock-bit slider displacement can be driven；Also, drive the operation of the lock-bit slider displacement that can allow the positioning by operation door knob Block is positioned by the hook of the locating detent, and the lock-bit module is made to be maintained at the disengaged position；When be intended to by the door-plate by this first When angle, θ 1 is opened into greater angle, it is necessary to which by Continued depression, the door knob pulls first draught line for the lock-bit sliding block It is detached from the operation of the lock-bit piece, can be only achieved the operation that the door-plate is increased to opening angle by first angle θ 1；Wherein, this The preferred range of one angle, θ 1 is between 20 °~50 °.

In a preferred embodiment, the safety catch of this further includes one second draught line and a brake component；Its In, which is set to the door-plate, which connects a fixing end of second draught line, a company of second draught line It connects end and is connected to the lock-bit sliding block, and then the lock-bit slider displacement can be driven；Wherein, this is allowed second to lead by pressing brake component Lead pulls the operation of the lock-bit slider displacement that the locating piece can't be allowed to be positioned by the hook of the locating detent, as long as so pine Opening the brake component will allow the lock-bit module to automatically revert to the locked position of coupler；At this point, only by persistently starting the brake component The lock-bit sliding block is detached from the lock-bit piece, just can be carried out the operation for opening the door-plate.

In order to achieve the above object, the present invention provides a kind of safety catch, it is set to a door-plate and is fixed with a door-plate Seat between, the door-plate can carry out relative to the door-plate fixing seat rotarily open and closing motion；The safety catch of this Include:

One of one fixing axle, be fixed in the door-plate fixing seat or the door-plate the two；It is equipped in the fixing axle It slots along its axially extending counterbore and one, and the fluting is connected to the counterbore；

One pedestal, is fixed on wherein another in the door-plate fixing seat or the door-plate the two, and the pedestal is with can be opposite It is pivotably sheathed in the fixing axle；When door-plate carries out the breakdown action relative to the door-plate fixing seat, the pedestal phase The fixing axle is rotated toward a first direction；Relatively, when door-plate carries out the closing motion relative to the door-plate fixing seat, The pedestal is rotated relative to the fixing axle toward a second direction；

One single direction locking mechanism comprising have a lock-bit module and a unidirectional tooth row, which can be single The function of displacement locking is provided to the unidirectional tooth row on direction；The unidirectional tooth row is set on the pedestal and interlocks with the pedestal； The lock-bit module is can be set in the fixing axle and abut in the unidirectional tooth row in a manner of relative displacement, also, the lock-bit mould Block can by an external force effect and switch between a locked position of coupler and a disengaged position；Wherein, it is somebody's turn to do when lock-bit module is located at When locked position of coupler, which can not carry out the rotation relative to the fixing axle in the first direction, institute together with the pedestal It will be unable to be carried out breakdown action with the door-plate, but the unidirectional tooth row can still be carried out relative to the fixing axle together with the pedestal Rotation in the second direction, so the door-plate can be by carry out closing motion；And when lock-bit module is located at the disengaged position When, which can be by carry out breakdown action and closing motion；And

One elastic element is incorporated into the lock-bit module, it is possible to provide an elastic force enables the lock-bit module in the shape for being not affected by external force It can be maintained on the locked position of coupler under state；

Wherein, which further includes one side side surface for having a portable pillar and a gear piece to be fixed on the portable pillar； The portable pillar is placed in the counterbore of the fixing axle and protrude out the gear piece can from the fluting except the fixing axle, also, The portable pillar can be displaced together with the gear piece along the direction that the counterbore extends with the fluting；

Wherein, which is the fan-shaped outer ring surface for being surrounded on the pedestal and abuts in the gear piece；By the tooth Piece and the unidirectional tooth row supporting state and can make the unidirectional tooth row that can only carry out together with the pedestal relative to the work between the two One direction rotation of the dynamic column in the second direction；When the lock-bit module the portable pillar by an external force effect and lead to the tooth When piece leaves the unidirectional tooth row, which can be carried out relative to the portable pillar together with the pedestal in the first direction and this The bidirectional rotation of second direction；

Wherein, when the lock-bit module is located at the locked position of coupler, which is to be resisted against the unidirectional tooth row, and work as the lock-bit When module is located at the disengaged position, which leaves the unidirectional tooth row.

Detailed description of the invention

Figure 1A is the safety catch of door of the present invention in the perspective exploded view in the first view directions.

Figure 1B is the safety catch of door of the present invention in the perspective exploded view in the second view directions.

Fig. 2 is the safety catch of door of the present invention in the three-dimensional assembled view in the first view directions.

Fig. 3 is that the safety catch of door of the present invention is set to the schematic top plan view of car body.

When Fig. 4 A and Fig. 4 B are respectively that the safety catch of door of the present invention is located at the locked position of coupler and the disengaged position Schematic diagram.

Fig. 5 A to Fig. 5 E discloses several different operations of the locating module in the safety catch of door of the present invention respectively State.

Fig. 6 A and Fig. 6 B are that the door-plate of the safety catch of door of the present invention is opened into small angle theta and preset the respectively Schematic diagram when one angle, θ 1.

Fig. 7 is the three-dimensional combination figure of the second preferred embodiment of safety catch of door of the invention.

Fig. 8 is the exploded perspective figure of the second preferred embodiment of safety catch of door of the invention.

Fig. 9 A and Fig. 9 B are respectively two different operations of the second preferred embodiment of safety catch of door of the invention The schematic side view of state.

Figure 10 A to Figure 10 C is respectively three different behaviour of the second preferred embodiment of safety catch of door of the invention Make the schematic top plan view of state.

Description of symbols: 1,50- safety catches；11,51- pedestal；111- frame；112- bearing holder (housing, cover)； 113- backboard；114- platform；115- sliding slot；1151- is fastened；The butting section 116-；The hole 1161-；1162- screw；117- fixing seat； 1170- screw；1171- is pivotally connected frame；118- trip gear；1181,1185- moving plate；1182,1186- pivotal axis；1183, The upper end 1187-；1184- button hole；1180；Bolt；12,521- lock-bit module；120- unilateral bearing；1201- outer portion；1202- Internal ring portion；121- ring gear；；122- gear part；123- inner ring surface；1231- nut；The two-way bearing of 124-；1241- outer portion； 1242- internal ring portion；125- distance piece；1251- centre bore；126- lock-bit piece；1261- line segment；1262- centre bore；The axle center 127-； 1271- screw thread；13- connecting rod element；131- tooth row；132- first end；1321- fastens hole；133- the second end；134- runs through Slot；135,561- convex block；136,562- helical spring；15,57- elastic element；16,55- playback element；160- screw；161- Connecting pin；162,551- driving end；17,54- locating module；170 screws；171- locating detent；172- locating piece；1720- screw； 1721- linking part；1722- trunk portion；173- pawl hooks；174- torque spring；175- nut；176- tilted warped part；The center 177- pivot Axle portion；18- lock-bit sliding block；181- slope；The engaging portion 182-；183- pull rod；The head 184-；2- car body；21- door-plate；210- Rotating hinge；On the outside of 211-；2111- door knob；On the inside of 212-；2121- brake component；22- door-plate fixing seat；The first draught line of 3-； The connecting pin 31-；32- fixing end；The second draught line of 4-；The connecting pin 41-；42- fixing end；501- is axial；511- upper pedestal；512- Lower base；5111,5121,530- connecting plate；5112,5122- spiral cover；5113- through hole；5114,5123- spiro tooth part；5116, 5125- hole seat；52- single direction locking mechanism；5211- portable pillar；5212- gear piece；The side surface 5213-；5214- positions depression； 5215- ratchet clamping part；5216- wire connecting portion；The unidirectional tooth row of 522-；5221- first end；5222- the second end；53- fixing axle； 531- counterbore；532- fluting；534- keyhole；The lower end 535-；The upper end 536-；541- locating detent；5411- pivot hole；5412- convex buckle； The upper end 5413-；The lower end 5414-；542- plug；543- torque spring；91- first direction；92- second direction.

Specific embodiment

In order to more clearly describe the safety catch of door proposed by the invention, specifically below in conjunction with schema Bright.

It please refers to shown in Figure 1A, Figure 1B, Fig. 2, Fig. 3, wherein Figure 1A is the safety catch of door of the present invention in the first view Perspective exploded view on angular direction；Figure 1B is the safety catch of door of the present invention in the solid in the second view directions point Solve schematic diagram；Fig. 2 is the safety catch of door of the present invention in the three-dimensional assembled view in the first view directions；Also, Fig. 3 is The safety catch of door of the present invention is set to the schematic top plan view of car body.The preferable reality of the safety catch 1 of door of the present invention Example system is applied to be set on the car body 2 of a vehicle, to interlock between a door-plate 21 and a door-plate fixing seat 22, the door-plate 21 Can carry out relative to the door-plate fixing seat 22 rotarily open and closing motion.

The safety catch 1 of door of the invention specifically includes that a pedestal 11 and a single direction locking mechanism (are not compiled in figure Number).The single direction locking mechanism includes a lock-bit module 12 and a connecting rod element 13.The lock-bit module 12 can be in single side The function of displacement locking is provided to the connecting rod element 13 upwards.Wherein, the lock-bit module 12 be set within the pedestal 11 and with Pedestal 11 interlocks.One end of the connecting rod element 13 is fixed in the door-plate fixing seat 22 and the other end protrudes into the pedestal 11 and Corresponding to the lock-bit module 12.Also, the lock-bit module 12 can be switched between a locked position of coupler and a disengaged position.Its In, when lock-bit module 12 is located at a locked position of coupler, which can not be carried out together with the pedestal 11 in a first direction On movement relative to the connecting rod element 13, so the door-plate 21, which will be unable to be turned on, to be closed；And work as lock-bit module 12 When positioned at a disengaged position, which can be turned on and close.

In Figure 1A, Figure 1B, Fig. 2 and embodiment shown in Fig. 3, which includes: a unilateral bearing 120, One ring gear 121, a two-way bearing 124, a distance piece 125, a lock-bit piece 126, an axle center 127 and a lock-bit sliding block 18；Extremely In the connecting rod element 13 in this present embodiment then include a tooth row 131.Also, the safety catch 1 of this further includes having: One elastic element 15, one playback element 16, a locating module 17 and be made of an at least moving plate 1181,1185 one Trip gear 118.

As shown in figure 3, since the door-plate 21 set on the car body 2 is articulated in the door-plate by a rotating hinge 210 In fixing seat 22, make to form fan-shaped opening direction in the door-plate 21 and the door-plate fixing seat 22.Therefore, according to the door-plate 21 with The continuous action relation of the door-plate fixing seat 22 causes the pedestal 11 of the safety catch 1 of door of the present invention to cooperate the door-plate 21 in itself Closure or openness and generate the direction of linear motion relative to connecting rod element 13；That is, a first party as marked in Fig. 2 To 91 and a second direction 92.The first direction 91 is that the door-plate 21 is opened (outside car body) outward by the door-plate fixing seat 22 Direction (that is, enabling direction), that is, the pedestal 11 can be mobile toward the first direction 91 relative to connecting rod element 13；And this Two directions 92 are the door-plates 21 by the door-plate fixing seat 22 closing direction (that is, shutdown direction) (in car body) inside, that is, The pedestal 11 can be mobile toward the second direction 92 relative to connecting rod element 13.

As shown in Figure 1A and Figure 1B, which, which has, is only capable of carrying out relative rotation on single direction of rotation Outer portion 1201 and internal ring portion 1202.The ring gear 121 is a hollow and annular element, have an external annular surface (unnumbered) and One inner ring surface 123；Also, the gear part with plural tooth is also provided in surrounding outside the external annular surface of the ring gear 121 122.The outer portion 1201 of the unilateral bearing 120 by close-fitting, bonding, welding or by card key engaging etc. in a manner of plug the ring gear 121 The inner ring surface 123 in so that the entire ring gear 121 can only carry out phase together with the gear part 122 on single direction of rotation For the internal ring portion 1202 of the unilateral bearing 120.In this present embodiment, the outer portion of the ring gear 121 (namely has gear part 122 part) it only can be carried out and revolved clockwise relative to the internal ring portion 1202 of the unilateral bearing 120 shown in figure 1A Turn, and can then lock can not rotate in the counterclockwise direction.Wherein, when the ring gear 121 has the external annular surface of gear part 122 Be carry out relative to the unilateral bearing 120 internal ring portion 1202 it is shown in figure 1A rotate clockwise when, the one-way shaft Hold 120 and the ring gear 121 can together with the pedestal 11 along the connecting rod element 13 (namely tooth row) towards the second direction 92 (namely shutdown direction) is mobile.

In this present embodiment, a side of the external annular surface of the ring gear 121 is not (with the projecting annular portion of gear part 122 Point) it is the inner peripheral that the internal ring portion 1242 of the two-way bearing 124 is tightly fixed to by close-fitting or card key.And the two-way axis 124 outer portion 1241 is held then to be fixed in a manner of close-fitting, welding or card key in a bearing holder (housing, cover) 112 of the pedestal 11.The list Then sequentially being equipped with to the internal ring portion 1202 of bearing 120 in that side (namely left side of Figure 1A) far from two-way bearing 124 should Distance piece 125, the lock-bit piece 126 and the axle center 127；In the unilateral bearing 120 internal ring portion 1202 adjacent to the two-way axis That side (namely right side of Figure 1A) for holding 124 is then equipped with a nut 1231.It is provided with screw thread 1271 on the axle center 127, It can be mutually locked with screw thread set in 1231 centre bore of nut.The axle center 127 is sequentially to pass through in the lock-bit piece 126 After the centre bore 1251 of heart hole 1262 and the distance piece 125, after being then passed through 1202 centre bore of internal ring portion of the unilateral bearing 120, Fixation is mutually screwed togather with the nut 1231 again, so that the axle center 127, lock-bit piece 126 and distance piece 125 can be fixed firmly The internal ring portion 1202 of the unilateral bearing 120 side and therewith interlock.

Although the lock-bit piece 126 in appearance similar to a disk and thin plate, but, the outside profile of the lock-bit piece 126 is real On border and the circular curve of Non-smooth surface, but it is made of sectional straight line (that is, a plurality of line segments 1261).Those lines Section 1261 be by by the outside of round lock-bit piece 126 be distinguished into N equal portions (N be not less than 3 positive integer) afterwards, again will be each etc. Part the circular contour is replaced to be constituted with outline of straight line.In this present embodiment, N be equal to 16, but its be also possible to 8,12 or its He is digital.The lock-bit piece 126 is located in the frame 111 of pedestal 11 and corresponds at the position of the lock-bit sliding block 18, makes lock-bit piece The line segment 1261 of 126 outside profile can be abutted on a slope 181 of the lock-bit sliding block 18.The lock-bit sliding block 18 On a platform 114 inside the frame 111 of the pedestal 11.Other than the slope 181, which also has packet Include the pull rod 183 positioned at the engaging portion 182 of 181 one end of slope and positioned at 181 other end of slope.The pull rod 183 is thin Stock, one end are fixed on one side side surface of the slope 181 of the lock-bit sliding block 18 and are located in the frame 111 of pedestal 11 Portion, and the other end of pull rod 183 is then except the frame 111 for protruding out pedestal 11, and by positioned at one of 183 end of pull rod Portion 184 withholds the button hole 1184 positioned at 1181 lower end of a moving plate.The elastic element has also been worn on pull rod 183 15.In this present embodiment, which is a compression helical spring, is set on pull rod 183, and the elastic element 15 One end be resisted against an end face of the lock-bit sliding block 18, the other end is resisted against on the frame 111 for being fixed on the pedestal 11 On one butting section 116.In this way, the elastic element 15 can provide a thrust, so that the lock-bit sliding block 18 has direction The trend of two directions 92 displacement；That is, the elastic force of the elastic element 15 can promote the slope 181 of the lock-bit sliding block 18 not One of the 126 outside profile of lock-bit piece line segment 1261 can be abutted against under by the normal condition of other external force, and then is made The lock-bit piece 126 can not arbitrarily rotate.

The two-way bearing 124 is exactly general existing commercially available two-way bearing, and having can be clockwise and double counterclockwise To the outer portion 1241 and internal ring portion 1242 of relative rotation.Therefore, the external annular surface of ring gear 121 is fixed on the two-way bearing 124 Internal ring portion 1242 on and synchronous rotation.In other words, entire ring gear 121 (includes one-way shaft together with entire unilateral bearing 120 Hold 120 outer portion 1201 and internal ring portion 1202) be can carry out the clockwise of outer portion 1241 relative to two-way bearing 124 with Shake double-direction turning movement counterclockwise；But there is the ring gear 121 external annular surface of gear part 122 then only can be carried out relative to the list To bearing 120 internal ring portion 1202 in unidirectional rotary motion clockwise shown in figure 1A.

One end (first end 132) of the connecting rod element 13 be by fasten hole 1321 be fixed in the door-plate fixing seat 22, The other end (the second end 133) is then the gear part 122 for being extended through the pedestal 11 and corresponding to the ring gear 121, makes to connect Tooth on the tooth row 131 of rod element 13 is intermeshed always with the tooth in the gear part 122 and both without departing from will not slide It is de-.The connecting rod element 13 further include: have the tooth row 131 of plural tooth, the first end 132, the second end 133 and One positioned at 131 lower section of tooth row and along the extension of tooth row 131 is long and narrow through slot 134.The first end 132 is to be articulated in the door-plate On fixing seat 22, which is connected with the playback element 16.Due to the tooth row 131 of the connecting rod element 13 be with The gear part 122 of the ring gear 121 is intermeshed, so, when lock-bit module 12 is located at disengaged position, the lock-bit piece 126 is simultaneously It is not supported and free to rotate, in other words, the unilateral bearing 120 can not provide monodirectional locking without fulcrum force at this time Function, therefore be to provide the function of bidirectional rotation by the two-way bearing 124.So the gear part 122 of the ring gear 121 can be with Bidirectional rolling is carried out on the tooth row 131 of the connecting rod element 13, and then keeps the unilateral bearing 120, the ring gear 121 two-way together with this Bearing 124 or even the pedestal 11 all together along the extending direction of the tooth row 131 of the connecting rod element 13 carry out it is two-way (first with Second direction 91,92) linear displacement movement, achieving the effect that can free open and close door-plate 21.Relatively, when lock-bit module 12 When positioned at locked position of coupler, a certain line segment 1261 on the 126 outside profile of lock-bit piece can be locked the slope 181 of sliding block 18 It supports and can not rotate, therefore, which can constitute a fulcrum together with the internal ring portion 1202 of the unilateral bearing 120, limit The outer portion 1201 for making the unilateral bearing 120 can only be in the tooth row of the connecting rod element 13 together with the gear part 122 of the ring gear 121 The rotation of (with Figure 1A view directions) single direction clockwise is carried out on 131, and then connects the unilateral bearing 120, the ring gear 121 With the two-way bearing 124 or even the pedestal 11 all together can only along the tooth row 131 of the connecting rod element 13 extending direction into The unidirectional linearity displacement movement gone towards second direction 92, and the displacement movement of other direction (first direction 91) can not be carried out. Since the pedestal 11 is fixed on door-plate 21 and the first end 132 of the connecting rod element 13 is that be articulated in the door-plate solid simultaneously On reservation 22；So the pedestal 11 can only be carried out towards the second direction 92 when lock-bit module 12 is located at locked position of coupler Displacement, but can not opposite direction be displaced towards the first direction 91, cause the door-plate 21 that can only be closed towards the door-plate fixing seat 22 (shutdown) can not but open the door, so to reach opening car door when can prevent the uncontrolled situation opened greatly suddenly from occurring.

In other words, when lock-bit module 12 of the invention is located at the locked position of coupler, this of the lock-bit sliding block 18 is oblique Slope surface 181 is the state in the line segment 1261 for abutting against the 126 outside profile of lock-bit piece and becomes fulcrum force, is made unidirectional Bearing 120 is had an effect, so the pedestal 11 can only carry out the shutdown of the displacement towards the second direction 92, cannot be opened the door.Relatively Ground, when lock-bit module 12 is located at the disengaged position, the slope 181 of the lock-bit sliding block 18 can leave the lock-bit piece 126 outside profiles, so that the lock-bit piece 126 can be relative to the outer portion of two-way bearing 124 together with entire ring gear 121 1241 any Double-directional rotaries, so the pedestal 11 will can be carried out the bidirectional displacement of first direction 91 Yu second direction 92, to carry out Enabling and door-closing operation.

Whether the locating module 17 is to may remain in controlling the slope 181 of the lock-bit sliding block 18 to leave the lock-bit The mechanism of the disengaged position state of 126 outside profile of piece, that is, the door-plate 21 is controlled after unlatching reaches a predetermined angle The key that whether locked position of coupler can be automatically returned to and be fixed in the door-plate fixing seat 22.In this present embodiment, the locating module 17 further include: a locating detent 171, a positioning block 172 corresponding with the locating detent 171 and a torque spring 174.This is fixed The pre- of 113 inside of backboard for being positioned at the pedestal 11 is pivotally arranged by screw 170 with nut 175 for position pawl 171 If on position.The both ends of the locating detent 171 are respectively provided with a pawl hooks 173 and a tilted warped part 176.The torque spring 174 be with It is locked together between the centrally-pivoted axle portion 177 of the locating detent 171 and the backboard 113 by means of screw 170 and nut 175, it is possible to provide a bullet Making every effort to promote, which has the locating detent 171 in the case where not by other external force, allows the pawl hooks 173 to bottom offset and tilted warped part The 176 pivot trend shifted up.The locating piece 172 is the element of a L-type, has a linking part 1721 and a trunk portion 1722.The linking part 1721 of the locating piece 172 is by the sealed engaging portion 182 for being fixed on the lock-bit sliding block 18 of screw 1720 On, and the trunk portion 1722 of the locating piece 172 is then to protrude upward from the linking part 1721 to abutting in the downside of the locating detent 171 Position at.When lock-bit module 12 is located at the locked position of coupler, that is, when the slope 181 of the lock-bit sliding block 18 is position can When supporting at the position of a certain line segment 1261 of the lock-bit piece 126, the upper end of the trunk portion 1722 of the locating piece 172 be against At 171 centrally-pivoted axle portion of locating detent, 177 lower edge and the position of closer pawl hooks 173, it is possible to support locating detent 171 Pivot its 173 end of pawl hooks will not downwards.When the lock-bit sliding block 18 because its pull rod 183 is pullled by external force and makes the lock-bit mould When block 12 is switched to the disengaged position from the locked position of coupler, it will there are two types of situations.One of situation is when lock-bit sliding block 18 pullled displacement distance it is shorter when, although the slope 181 of the lock-bit sliding block 18 has left the circumference of lock-bit piece 126 Line segment 1261, so that the lock-bit module 12 has been entered the disengaged position；But the upper end of the trunk portion 1722 of the locating piece 172 Still the lower edge being resisted against between the centrally-pivoted axle of locating detent 171 and pawl hooks 173 not yet enters the pawl hooks 173 of locating detent 171 It is interior.Although at this point, the lock-bit module 12 is the state in disengaged position, as long as being applied to the pull rod of the lock-bit sliding block 18 183 external force (pullling power) one disappears, then lock-bit sliding block 18 will be returned to because of elastic force provided by elastic element 15 immediately Abut against the locked position of coupler state of the line segment 1261 of 126 circumference of lock-bit piece.Another situation is when 18 quilt of lock-bit sliding block Pull displacement distance it is relatively long when, the slope 181 of the lock-bit sliding block 18 has not only left the circumference of lock-bit piece 126 Line segment 1261, so that the lock-bit module 12 has been entered the disengaged position, and the upper end of the trunk portion 1722 of the locating piece 172 simultaneously It can be caught in the pawl hooks 173 of the locating detent 171.At this point, even if the external force for being applied to the pull rod 183 of the lock-bit sliding block 18 (is drawn Pull power) it disappears, the upper end of the trunk portion 1722 can still be clasped by the pawl hooks 173 of locating detent 171, without allowing locating detent 171 The state of locked position of coupler is returned to because of the elastic force of elastic element 15 together with the lock-bit sliding block 18.In other words, when locating piece 172 When the upper end of trunk portion 1722 is caught in the pawl hooks 173 of the locating detent 171, which, which can be always held at, is loosened The state of position will not disappear because of the external force for being applied to pull rod 183 and just automatically reply into the state of locked position of coupler.This one is loosened The state of position, which need to rely on, opens greater angle for door-plate, and then playback element 16 is promoted to support and push the oblique of locating detent 171 The mode in portion 176 is stuck up, to make the upper end of trunk portion 1722 that can be detached from pawl hooks 173, and then allows lock-bit module 12 that can be returned to this and closes The state of lock position.

The playback element 16 is the L-shaped element of a bending, wherein a connecting pin 161 is by screw 160 and connecting rod member The second end 133 of part 13 is connected.And another driving end 162 for the element 16 that playbacks then is located on 13 1 side of connecting rod element It is in just and with connecting rod element 13 the long and narrow rod-shaped elements extended in parallel.When the ring gear 121 together with pedestal 11 towards this When (that is, when door-plate 21 is turned on relatively large angle) two ends 133 are displaced relatively large distance, the driving end 162 Height can just push the tilted warped part 176 of the corresponding locating detent 171 with position, make the tilted warped part 176 of locating detent 171 by the driving end 162 push pushing to cause to lift in the pawl hooks 173, and cause the trunk portion 1722 of the positioning body 172 can be from the pawl hooks 173 in turn It is detached from.The playback element 16 is fixed on connecting rod element 13 so being the immovable element being fixed to each other with door-plate fixing seat 22. Certainly, in another embodiment, which is also possible to be integrally formed with the connecting rod element 13.

The elastic element 15 mainly allows the lock-bit sliding block 18 to be able to maintain when not pulled by external force generally and the lock-bit The state that the mutual closing of piece 126 is supported.Only when application external force pulls the head 184 of the pull rod 183 and promotes lock-bit sliding block 18 Slope 181 when leaving the line segment 1261 of 126 circumference of lock-bit piece, just so that the door-plate 21 can be opened freely in the door In plate fixing seat 22.

The pedestal 11 includes: a frame 111, a bearing holder (housing, cover) 112, a backboard 113, a platform 114, a sliding slot 115, one Butting section 116, a fixing seat 117 and two moving plates 1181,1185.The frame 111 is a U-shaped structure, has one among it Accommodating space for accommodate the unilateral bearing 120, the ring gear 121 and its gear part 122, lock-bit piece 126, axle center 127, connecting rod member The elements such as part 13, elastic element 15, playback element 16, locating module 17 and lock-bit sliding block 18.The one side of frame 111 is equipped with should Bearing holder (housing, cover) 112 is for fixing the outer portion 1241 of the two-way bearing 124, another side is equipped with the backboard 113 then for further It is sealed to be fixed on door-plate 21.The platform 114 is located at 111 bottom surface of frame, and be separated by between bearing holder (housing, cover) 112 an appropriate spacing and Constitute the sliding slot 115.The connecting rod element 13 is located in the sliding slot 115, and makes to fasten 1151 set by 115 both ends of sliding slot and wear respectively That crosses connecting rod element 13 runs through slot 134, so that connecting rod element 13 is able to relatively carry out linear displacement along sliding slot 115, not only Connecting rod element 13 is without departing from sliding slot 115 and the both ends 132,133 of connecting rod element 13 will not be allowed to enter inside frame 111.Against Portion 116 is that 114 place of platform close positioned at the leading flank lower half of frame 111 or backboard 113 is locked on by screw 1162.In supporting A hole 1161 is provided in relying part 116 to pass through for the pull rod 183 of lock-bit sliding block 18 and head 184 is allowed to be exposed to frame 111 It is outer.Fixing seat 117 is locked at the leading flank upper half of frame 111 or backboard 113 by screw 1170.In fixation It is provided with pivot joint frame 1171 on seat 117, relies on a bolt for the pivotal axis 1182,1186 of two moving plate 1181,1185 1180 pass through and are pivoted thereon.Two moving plate 1181,1185 includes the first moving plate of closer fixing seat 117 1181 and further away from fixing seat 117 the second moving plate 1185.The pivotal axis 1182 of first moving plate 1181 is located at first and pulls The middle section of movable plate 1181, and its lower end is extended near the hole 1161 of butting section 116.In the first moving plate 1181 Lower end is equipped with button hole 1184, and it is that hook lives the head 184 of pull rod 183 and can pull its movement.The pivot of second moving plate 1185 Axis 1186 is located at the lower end of the second moving plate 1185, and the second moving plate 1185 is abutted in the upper half of the first moving plate 1181 Lateral surface.The upper end 1187 of second moving plate 1185 is fixed with two draught lines 3,4, by pullling two draught lines 3,4 wherein One of can pull the upper end 1187 of the second moving plate 1185, promote the second moving plate 1185 to oppress and drive the first moving plate 1181 upper end 1183 is mobile, and the head 184 of pull rod 183 is pulled away from butting section 116 in turn.Because of lever principle, due to leading The position of lead 3 is more adjacent to bolt 1180 for draught line 4；So when two draught lines 3,4 pullled it is mobile Apart from it is the same when, pulled by draught line 3 head 184 caused by second moving plate 1185 be displaced distance, it will it is bigger In the distance for pulling the second moving plate 1185 that head 184 can be caused to be displaced by draught line 4.And in another implementation of the invention , can also be different by the distance for allowing door knob 2111 or brake component 2121 to pull two draught lines 3,4 in example, to determine the second moving plate 1185 distance differences that head 184 can be caused to be displaced.

And it is of the invention so trip gear 118 is designed to two panels moving plate 1181,1185 and two draught lines 3,4 One end is all fixed on the reason on the second moving plate 1185, is because of when trunk portion 1722 of the invention is caught in pawl hooks 173 It is interior and when lock-bit module 12 being made temporarily to be positioned in the disengaged position；At this point, two moving plates 1181 of trip gear 118, 1185 states that relaxation can be presented and can slightly shake.The present invention relies on two draught lines 3,4 or end is added and for example rolled up Two draught lines 3, the mechanism of 4 elastic stretchings or element (not shown) can be allowed two draught lines 3,4 by spring or torque spring etc. Even still somewhat tensioned in the case that trunk portion 1722 is caught in pawl hooks 173, rather than it is fully relaxed.

Referring to Fig. 3, on the door-plate 21 one outside 211 and one inside 212 sides on be respectively equipped with a door knob 2111 with An and brake component 2121.The door knob 2111 and the brake component 2121 respectively by a traction mechanism be connected to two moving plates 1181, On 1185.In this present embodiment, which is draught line 3,4, it is also possible to be draw bar or cam or solenoid valve or Other can transmitting thrust or pulling force mechanism person.The door knob 2111 connects a fixing end 31 of the first draught line 3, and this first leads Another connecting pin 32 of lead 3 is connected to the unidirectional ratchet 12.The brake component 2121 connects a fixing end of the second draught line 4 41, and a connecting pin 42 of second draught line 4 is connected to the unidirectional ratchet 12.In the present invention, which is exactly mesh The door knob that the door outside of preceding all vehicles can all have only is additionally arranged draught line 3 above-mentioned；Also, the brake component 2121 is then It can be leader's (can be the handle for opening door that can all have on the inside of the car door of all vehicles) or button, and be set to vehicle On the inside of car door near the position of Door Armrest, to facilitate passenger inside the vehicle or driving to want easily grasp when opening car door Make or press the brake component 2121.

In another embodiment of the present invention, an electromagnetic system more can be additionally arranged in the safety catch 1 of door of the invention Motivation structure (not shown).Wherein, the fixing end 31 of first draught line 3 connected other than the door knob 2111, also It can connect one first solenoid valve (not shown) and first solenoid valve be equipped with one first button switch in 21 outside of door-plate On 211 door knob 2111 or near the door knob 2111.As long as first electromagnetism can be driven by pressing first button switch just Valve pulls first draught line 3, reaches the same effect that the door knob 2111 is opened with user's direct pull.In addition to this, The fixing end 41 of second draught line 4 connected other than the manually brake component 2121, one can also be connected with Two solenoid valve (not shown) and the second solenoid valve be equipped with one second button switch on the handle for opening door of 21 inside of door-plate or Near.As long as the second solenoid valve can be driven to pull second draught line 4 by pressing second button switch just, reaches and use Person directly opens the same effect of the brake component 2121.In this way, the safety catch 1 of door of the invention can also use simple electricity Flowing mode operates simple manual mode operation or electronic plus manual dual mode to operate, with improve using it is upper just Benefit person.

Please refer to shown in Fig. 4 A and Fig. 4 B, the safety catch 1 of door respectively of the present invention be located at the locked position of coupler and The schematic diagram when disengaged position.As shown in Figure 4 A, when nobody pulls door knob 2111 or brake component 2121, because draught line 3, 4 will not pull moving plate 1181,1185, thus the lock-bit sliding block 18 of lock-bit module 12 may remain in its slope 181 be to The state of the circumference line segment 1261 of lock-bit piece 126 is withstood, that is, is in the state of locked position of coupler.Due to unilateral bearing 120 internal ring portion 1202 be it is fixed with lock-bit piece 126, so the gear part 122 being located on the external annular surface of ring gear 121 be only capable of into Clockwise rotary motion of the row on the visual angle shown in Fig. 4 A；In other words, unilateral bearing 120, ring gear 121 are together with two-way Bearing 124 and pedestal 11 can only all be carried out relative to connecting rod element 13 towards the right (namely on visual angle shown in Fig. 4 A Two directions 92 and shutdown direction) linear displacement.That is, when lock-bit module 12 of the invention is located at locked position of coupler and without outer When power is applied to moving plate 1181,1185, no matter at that time the door-plate 21 of vehicle is located at the open state of which angle, the door-plate 21 are all only capable of towards the direction movement closed the door, can not move towards enabling direction.

As shown in Figure 4 B, when someone pulls one of door knob 2111 or brake component 2121, corresponding draught line 3,4 will Corresponding moving plate 1181,1185 can be pullled, promotes the button hole 1184 positioned at 1181 lower end of moving plate can be the head of pull rod 183 It pulls outward (such as left at the visual angle Fig. 4 B) in portion 184.So the slope 181 of the lock-bit sliding block 18 of lock-bit module 12 will be drawn The line segment 1261 of 126 circumference of lock-bit piece is pulled and left, that is, is in the state of disengaged position.Not due to lock-bit piece 126 Again by the slope 181 of lock-bit sliding block 18 support and be freely rotatable, and because unilateral bearing 120 without fulcrum force, in addition The external annular surface of ring gear 121 is the event for being placed on the internal ring portion 1242 of the two-way bearing 124, so the external annular surface of ring gear 121 On gear part 122 will can carry out it is clockwise with Double-directional rotary counterclockwise.In other words, unilateral bearing 120, ring gear 121 connect It will can be carried out relative to connecting rod element 13 with two-way bearing 124 and pedestal 11 towards the two-way of first direction 91 and second direction 92 Linear displacement.That is, no matter at that time the door-plate 21 of vehicle is located at when lock-bit module 12 of the invention is located at disengaged position The open state of which angle, the bidirectional operation which can be opened the door and be closed the door.

Fig. 5 A to Fig. 5 E discloses several different behaviour of the locating module 17 in the safety catch 1 of door of the present invention respectively Make state.As shown in Figure 5A, when the safety catch 1 of door of the present invention is in most initial state, which is place Any moving plate 1181,1185 is applied in the state of locked position of coupler, and without external force.At this point, the slope of the lock-bit sliding block 18 181 be position in a certain line segment 1261 that can support the lock-bit piece 126, and simultaneously on the trunk portion 1722 of the locating piece 172 End be abut against the intermediate lower edge of locating detent 171 slightly towards the position of pawl hooks 173 at, it is possible to supporting locating detent 171 makes Its pawl hooks 173 will not pivot downwards.

For the lines for simplifying the lines on drawing, the elements such as lock-bit piece 126 will be omitted in Fig. 5 B to Fig. 5 D.

As shown in Figure 5 B, brake component 2121 is pressed inside the car as someone, make draught line 4 pull moving plate 1185, into And promote the button hole 1184 of another 1181 lower end of pulling piece pull pull rod 183 head 184 and outward (left) be displaced a phase When to relatively short distance (distance t1 as shown in Figure 5 B), although the slope 181 of the lock-bit sliding block 18 has left lock-bit piece 126 Circumference line segment 1261, so that the lock-bit module 12 has been entered the disengaged position；But the trunk portion of the locating piece 172 1722 upper end is still resisted against the lower edge between the centrally-pivoted axle of locating detent 171 and pawl hooks 173, not yet enters locating detent In 171 pawl hooks 173.Although at this point, the lock-bit module 12 is the state in disengaged position, as long as being applied to the lock-bit The external force (pullling power) one of the pull rod 183 of sliding block 18 disappears, then lock-bit sliding block 18 will be immediately because of the bullet of elastic element 15 itself Power and be returned to the locked position of coupler state for abutting against the line segment 1261 of 126 circumference of lock-bit piece.In other words, when user is When being intended to opening car door (door-plate 21) from the interior mode by pressing brake component 2121, which has to last for pinning brake component 2121 could continue to open the door, and otherwise, as long as user one decontrols hand, which will automatically reply into locked position of coupler State and cause door-plate 21 that cannot continue to open and be only capable of mobile toward the direction closed the door toward bigger angle.

As shown in Figure 5 C, as someone, (or internal) pulls the pulling of draught line 3 by door knob 2111 is pulled outside car Piece 1181 and then the head 184 for promoting the button hole 1184 of 1181 lower end of pulling piece to pull pull rod 183 and (left) displacement outward One it is relatively long apart from when (as shown in Figure 5 C distance t2), the slope 181 of the lock-bit sliding block 18 has not only left lock-bit The line segment 1261 of the circumference of piece 126 makes the lock-bit module 12 enter the disengaged position, and the locating piece 172 simultaneously The upper end of trunk portion 1722 can be caught in the pawl hooks 173 of the locating detent 171.Even if at this point, being applied to the lock-bit sliding block 18 The external force (pullling power) of pull rod 183 disappears, and the upper end of the trunk portion 1722 can still be clasped by the pawl hooks 173 of locating detent 171, and Locating detent 171 will not be allowed to return to the state of locked position of coupler because of the elastic force of elastic element 15 together with the lock-bit sliding block 18.Change speech It, when user by the door knob 2111 pulled outside vehicle doorn or in door promote the mobile relatively long distance of lock-bit sliding block 18, And when being caught in the upper end of the trunk portion 1722 of locating piece 172 in the pawl hooks 173 of the locating detent 171, which can To be always held at the state of disengaged position, door knob 2111 will not be decontroled because of user and the external force for being applied to pull rod 183 is allowed to disappear The state for just automatically replying into locked position of coupler is lost, door-plate 21 can be opened into greater angle or shutdown at this time.However, even if When being in the state that the upper end of trunk portion 1722 is to be caught in pawl hooks 173, door-plate 21 can not arrive maximum angle by any open； Relatively, as shown in Figure 5 D, when door-plate 21 continue open reach a scheduled first angle θ 1 when (that is, pedestal 11 together with When locating module 17 is continued towards the movement of the second end 133 of connecting rod element 13), the driving end 162 of the playback element 16 will The tilted warped part 176 of locating detent 171 is supported and pushes, so that the upper end of trunk portion 1722 can be detached from pawl hooks 173 and because of elastic element 15 itself elastic force and promote lock-bit sliding block 18 to return to the position that can originally support 126 circumference of lock-bit piece, and then allow lock Position module 12 can be returned to the state of the locked position of coupler.In other words, when user is by the door knob pulled outside vehicle doorn or in door 2111 come when opening the door, as long as door-plate 21 can be opened and closed freely and without user in the range of first angle θ 1 Continued depression door knob 2111.But once when door-plate 21 is turned on and reaches preset first angle θ 1, lock-bit of the invention Module 12 will automatically reply into the state of locked position of coupler；At this point, when if user wants door-plate 21 to be then turned on greater angle Door knob 2111 must be pressed again, otherwise just can only can not continue to open the door towards the mobile door-plate 21 in shutdown direction.

When someone pull door knob 2111 and as shown in Figure 5 C as so that 1722 upper end of trunk portion of locating piece 172 is caught in the positioning After in the pawl hooks 173 of pawl 171, which can be maintained at the disengaged position, reach or surpass until door-plate 21 is turned on When preset first angle θ 1, the tilted warped part 176 of locating detent 171, simultaneously can just be supported and be pushed to the driving end 162 of playback element 16 Lock-bit module 12 is switched back into locked position of coupler.However, user can not necessarily be opened to door after pulling door knob 2111 sometimes Be enough to allow driving end 162 push tilted warped part 176 degree (such as, but not limited to: user be door opening take a thing or Door is opened slightly only and is closed to ensure to shut car door etc.)；If such situation occurs, 1722 upper end meeting of trunk portion It is always held at the state being caught in pawl hooks 173 and lock-bit module 12 is made to be always held at disengaged position.It is such in order to release Situation, the safety catch 1 of door of the present invention is more additionally arranged can be when car door (door-plate 21) be fully closed, can be positioning Pawl 171 pushes back its home position, and allows 1722 upper end of trunk portion of locating piece 172 that can thus be detached from the pawl hooks of the locating detent 171 173 resetting-mechanism.In this present embodiment, described to be used to push back locating detent 171 when car door (door-plate 21) is fully closed The resetting-mechanism in its home position includes a convex block 135 and a helical spring 136.

As shown in fig. 5e, it is solid that the first end 132 which is arranged in the connecting rod element 13 is also just fixed on door-plate That end of reservation 22.The helical spring 136 is fixed on convex block 135 and towards the second end 133 (that is, towards the locating detent 171) extend a predetermined length.Height set by the helical spring 136 corresponds to the lower edge of the locating detent 171；Also, the spiral shell The length that rotation spring 136 is extended can be fully closed namely when car door (door-plate 21) when the locating detent 171 connects just When being moved at the most end towards second direction 92 (shutdown direction) together with pedestal 11, the end of the helical spring 136 just may be used Support the lower edge of the locating detent 171 and be located at any position in the left side of centrally-pivoted axle portion 177, and therefore pawl hooks 173 to On rise, and then 1722 top of trunk portion of locating piece 172 allowed to be detached from the pawl hooks 173 of the locating detent 171, and allow lock-bit sliding block 18 It is able to the elastic force by elastic element 15 and is returned to its original locked position for supporting the lock-bit piece 126.In this way, can be true It protects after car door (door-plate 21) is closed, the lock-bit module 12 of the present invention is bound to return to the locked position of coupler.In addition, Since the safety catch 1 of door of the present invention is by unilateral bearing 120, ring gear 121, two-way bearing 124, lock-bit piece 126, lock The elements such as position sliding block 18 can be switched to constitute in the lock-bit module of locked position of coupler and disengaged position state, and the gear of ring gear 121 It is also to remain that the state of engaged transmission does not have slip phenomenon between portion 122 and the tooth row 131 of connecting rod element 13.So Either during door-plate 21 opens the door or closes the door, the safety catch 1 of door of the present invention does not have ratchet and slips institute The percussion sound of generation, therefore low noise can be reached and even approach silent operating process and effect.

It is that the door-plate 21 of the safety catch 1 of door of the present invention is opened into small angle theta respectively as shown in Fig. 6 A and Fig. 6 B With schematic diagram when preset first angle θ 1.Embodiment as shown in Figure 5 D is connected, outside user is by pulling vehicle doorn Or the door knob 2111 in door when opening the door, can allow the upper end of trunk portion 1722 of locating piece 172 to be caught in the pawl hooks of the locating detent 171 In 173, so, even if user has decontroled door knob 2111, door-plate 21 still is able in the range of an opposite small angle theta by freedom It opens or closes.However, when the angle that door-plate 21 is turned on reaches preset first angle θ 1, the transmission of the playback element 16 The tilted warped part 176 of locating detent 171 will be supported and be pushed in end 162, and lock-bit module 12 is made to automatically reply into the state of locked position of coupler； , otherwise just can only be towards pass at this point, if user wants that door knob 2111 must be pressed when door-plate 21 is then turned on greater angle again The mobile door-plate 21 in door direction can not continue to open the door.In this present embodiment, the preferred range of first angle θ 1 between 20 °~ (especially to be best between 30 °~40 ° of range) between 50 °, under 1 range of this first angle θ, personnel should can freely into Vehicle and will not influence the safety for passing through other people vehicles near car body because 21 opening angle of door-plate is too big out.If being intended to door It when plate 21 is continued starting more than first angle θ 1, then needs that user is forced to press door knob 2111, can avoid leading because user looses one's grip It causes 21 inexpectancy of door-plate or uncontrollably opens greatly suddenly and cause danger.

It in 1 embodiment of safety catch of the door shown in Figure 1A and Figure 1B, and may include emergency unchaining design.By Even also only relying on lock-bit sliding block 18 in the state of abutting each other between the two in lock-bit sliding block 18 and lock-bit piece 126 The abutment face of the line segment 1261 of slope 181 and 126 circumference of lock-bit piece between the two provides positioning function, and non-fully It is stuck.When the state of emergency, which occurs, causes user that can not carry out opening-door plate 21 by operation door knob 2111 or brake component 2121, Door-plate 21 can be still pulled by brute-force arrives generation slip phenomenon between slope 181 and line segment 1261 by the unlatching of door-plate 21 Greater angle.In the present invention, the strength size of both slope 181 and line segment 1261 generation slip phenomenon can be relied on and sets The quantity of the line segment 1261 being placed on 126 circumference of lock-bit piece determines.Line segment 1261 on 126 circumference of lock-bit piece Quantity it is more when, the inclination angle of slope 181 is smaller, thus occur slip phenomenon needed for strength it is also smaller.

In conclusion 1 owner of safety catch of door of the present invention will be set on a car body 2, it is used in the door-plate 21 outside 211 and 212 side of inside set door knob 2111 and the brake component 2121 respectively, and pass through respectively this One draught line 3 and second draught line 4 pull the lock-bit sliding block 18, are so detached from the engaging of the lock-bit piece 126, reach the door The purpose that plate 21 can freely be opened in the door-plate fixing seat 22.

However, Yu Kaiqi's passes through the positioning mould instantly when by opening the door-plate 21 by the door knob 2111 outside the car body 2 The lock-bit sliding block 18 is pulled and is temporarily positioned at and is detached from place of 126 circumference of lock-bit piece by block 17, makes door-plate 21 can Yu Yixiang To being opened or closed freely within the scope of smaller angle θ.And when the door-plate 21 is persistently opened into preset first angle θ 1, The tilted warped part 176 of the locating detent 171 of the locating module 17 is pushed by the playback element 16, and then will by the elastic element 15 The lock-bit sliding block 18 pushes back at the position for supporting 126 circumference of lock-bit piece, the door-plate 21 can be fixed on the door at this time It avoids continuing to be turned on plate fixing seat 21.At this point, as long as user presses door knob 2111 or brake component 2121, the door again Plate 21 still can persistently pull first draught line 3 by the door knob 2111, which is opened in the door-plate fixing seat 22 It opens than the larger range of angle of first angle θ 1.

In addition, the brake component 2121 as set by the inside 212 of the door-plate 21 and being opened by second draught line 4 When opening the door-plate 21, second draught line 4 pulled by the brake component 2121 its pull rod 183 when pullling pulling piece 1185 The stroke distances that head 184 is displaced are shorter to obtain than the door knob 2111 pull first draught line 3；Therefore, when the pressing braking The lock-bit sliding block 18 will not restrain positioning by locating module 17 when part 2121.So only when user's Continued depression should When brake component 2121, which may exit the circumference of lock-bit piece 126, be turned on door-plate 21.Once When user discharges the brake component 2121, which can be because of the elastic returning and the lock-bit piece of the elastic element 15 Therefore the state that 126 circumferences lean also reaches and the door-plate 21 is fixed on the door-plate fixing seat 22 can not be turned on more The effect of wide-angle.

Please refer to Fig. 7, Fig. 8, Fig. 9 A and Fig. 9 B, the second preferred embodiment of safety catch of door respectively of the invention Three-dimensional combination figure, exploded perspective figure and two different operating states of side view schematic diagram.It is preferably real in the present invention second It applies in example, the safety catch 50 of this is with the structure setting of similar door-hinge hinge (Door Hinge) in door-plate 21 and door-plate Between fixing seat 22, such as the position of rotating hinge 210 being arranged in Fig. 3, the door-plate 21 can carry out solid relative to the door-plate Reservation 22 rotarily open and closing motion.

As shown in Figures 7 and 8, the second preferred embodiment of the safety catch 50 of door of the invention includes: one Body 51 (including upper pedestal 511 and lower base 512), a single direction locking mechanism 52, a fixing axle 53, a locating module 54, one are returned Bit unit 55 and an elastic element 57.

The fixing axle 53 one of is affixed in the door-plate fixing seat 22 or 21 the two of door-plate.In Fig. 7 to figure In second preferred embodiment shown in 9B, which is fixed in door-plate fixing seat 22 with a connecting plate 530.It is fixed in this Axis 53 is equipped with along its axial 501 counterbore 531 and a fluting 532 extended, and the fluting 532 is connected to the counterbore 531.

The pedestal 51 is fixed on wherein another in the door-plate fixing seat 22 or 21 the two of door-plate.Fig. 7 to Fig. 9 B institute In the second preferred embodiment shown, which includes a upper pedestal 511 and a lower base 512, the upper and lower pedestal 511, 512 are fixed on door-plate 21 with a connecting plate 5111,5121 respectively.Also, upper pedestal 511 respectively has respectively with lower base 512 One hollow hole seat 5116,5125.Pedestal 51 (the including upper pedestal 511 and lower base 512) set in a manner of it can be pivoted relative to each other In the fixing axle 53；That is, the hole seat 5125 of the hole seat 5116 of the upper pedestal 511 and the lower base 512 is respectively with can phase To the upper and lower end 536,535 for being pivotably linked in the fixing axle 53.And then cover conjunction respectively with two spiral covers 5112,5122 In the hole seat 5116 of the upper pedestal 511 and the hole seat 5125 of the lower base 512, and the spiro tooth part 5114 of spiral cover 5112 is allowed to lock Gu the set thread in 53 upper end of fixing axle, 536 counterbore 531, and the spiro tooth part 5123 of screwed lid 5122 is allowed to lock solid Thread set by 53 lower end 535 of dead axle.In addition, being equipped in upper spiral cover 5113 along axial 501 pass through aperture 5113 extended So that draught line 3 is passed through, and make the elastic element 57 be folded in spiral cover 5112 on this 5114 lower end of spiro tooth part and the work Between dynamic 5211 upper end of column.When door-plate 21 carries out the breakdown action relative to the door-plate fixing seat 22, the pedestal 51 is (comprising upper Pedestal 511 and lower base 512) it is rotated relative to the fixing axle 53 toward a first direction 91；Relatively, when door-plate 21 carries out relatively When the closing motion of the door-plate fixing seat 22, the pedestal 51 (including upper pedestal 511 and lower base 512) is relative to the fixing axle 53 rotate toward a second direction 92.

The single direction locking mechanism 52 includes a lock-bit module 521 and a unidirectional tooth row 522,521 energy of lock-bit module It is enough to provide the function of displacement locking to the unidirectional tooth row 522 in a single direction.The unidirectional tooth row 522 is set to the pedestal 51 It on the lower base 512, and is interlocked with the lower base 512.The lock-bit module 521 is solid can be set to this in a manner of relative displacement On dead axle 53 and abut in the unidirectional tooth row 522；Also, the lock-bit module 521 can by an external force effect and switch on one and close Between lock position and a disengaged position.Wherein, when lock-bit module 521 is located at the locked position of coupler, the unidirectional tooth row 522 together with The pedestal 51 (including upper pedestal 511 and lower base 512) can not be carried out relative to the fixing axle 53 on the first direction 91 Rotation, so the door-plate 21 will be unable to be carried out breakdown action, but the unidirectional tooth row 522 (includes the seat of honour together with the pedestal 51 Body 511 and lower base 512) rotation relative to the fixing axle 53 in the second direction 92 can be still carried out, so the door-plate 21 can be by carry out closing motion.And when lock-bit module 521 is located at the disengaged position, which can be started Work and closing motion.

The elastic element 57 is located in the counterbore 531 of the fixing axle 53 and is to be incorporated into the lock-bit module 521, it is possible to provide One elastic force enables the lock-bit module 521 that can be maintained on the locked position of coupler in the state of being not affected by external force.

Wherein, which further includes having a portable pillar 5211 and a gear piece 5212 to be fixed on the portable pillar 5211 one side side surface.The portable pillar 5211 is placed in the counterbore 531 of the fixing axle 53 and makes the gear piece 5212 can be certainly The fluting 532 protrudes out the outer of the fixing axle 53.The elastic element 57 be a helical spring its be located on the portable pillar 5211 It holds and is located in the counterbore 531.Also, the portable pillar 5211 can be along the counterbore 531 and the fluting 532 together with the gear piece 5212 The direction of extension is displaced.One draught line 3 is to be fixed on the portable pillar again after initially passing through the elastic element 57 from top to bottom The wire connecting portion 5216 of 5211 upper ends.Pullling the draught line 3 upwards by external force can drive the portable pillar 5211 together with the gear piece 5212 are lifted upwardly together；Also, after external force disappears, which can provide an elastic thrust for the portable pillar 5211 push back its home position together with the gear piece 5212 downwardly together.

The unidirectional tooth row 522 is the fan-shaped outer ring surface for being surrounded on the lower base 512 and is table on unidirectional tooth row 522 Face is abutted in the lower edge of the gear piece 5212.It can be with by the state of supporting of the gear piece 5212 and the unidirectional tooth row 522 between the two Carry out the unidirectional tooth row 522 can only relative to the portable pillar together with the pedestal 51 (comprising upper pedestal 511 and lower base 512) 5211 rotate with one direction of the fixing axle 53 in the second direction 92.When the lock-bit module 521 the portable pillar 5211 by The effect (such as upper lift is pullled by draught line 3) of one external force and when the gear piece 5212 being caused to leave the unidirectional tooth row 522, this is unidirectional Tooth row 522 can carry out solid with this relative to the portable pillar 5211 together with the pedestal 51 (including upper pedestal 511 and lower base 512) Bidirectional rotation of the dead axle 53 in the first direction 91 and the second direction 92.Wherein, when the lock-bit module 521 is located at the locking position When setting, which is to be resisted against the unidirectional tooth row 522, and when the lock-bit module 521 is located at the disengaged position, the gear piece 5212 leave the unidirectional tooth row 522.

In second preferred embodiment of the invention, the lower end of the gear piece 5212 has a thickness gradually thin ratchet clamping part 5215. It is equipped with an at least unidirectional ratchet in a upper surface of the unidirectional tooth row 522, each unidirectional ratchet is respectively provided with two inclined surface, It is then the precipitous abutment face of the gradient that one of them inclined surface, which is the slip plane of gentle gradient, another inclined surface,.In this present embodiment, In setting on the unidirectional tooth row 522, there are many a unidirectional ratchets, and under such structure, no matter the lower end of ratchet clamping part 5215 is contact In any position of the unidirectional tooth row 522, can all there be the unidirectional ratchet adjacent with 5215 lower end of ratchet clamping part to provide unidirectional card Solid function.And in figure in not illustrated another embodiment, in the quantity of unidirectional ratchet set on the unidirectional tooth row 522 It can be one or two, three a small number of, in this way, only causing under ratchet clamping part 5215 when door-plate 21 is opened to preset angle End just has the effect unidirectionally fixed when supporting the abutment face of a certain unidirectional ratchet；And work as ratchet clamping part

5215 lower end is when being contacted with unidirectional tooth row 522 to be not provided with the region of unidirectional ratchet, and door-plate 21 is can be by Two-way opening and closing.For example, can on fan-shaped unidirectional tooth row 522 at interval of a predetermined angular (such as, but not limited to At interval of 10 degree of angles) one unidirectional ratchet of setting, in this way, the angle that door-plate 21 can be allowed to be turned on one predetermined angular (example of every increase As but be not limited to 10 degree of angles of every increases) when will be supported, position once, only user pulls on door-plate again at this time Handle (or brake component) could continue door-plate 21 to open to greater angle after allowing lock-bit module 521 to be switched to disengaged position.

As shown in Figure 9 A, when the lock-bit module 521 is located at the locked position of coupler, the ratchet clamping part 5215 of the gear piece 5212 is It is contacted with the upper surface of the unidirectional tooth row 522.At this point, when the unidirectional tooth row 522 is intended to carry out relative to this together with lower base 512 Portable pillar 5211 and the fixing axle 53 are in the rotation on the first direction 91 (when namely opening-door plate 21), the unidirectional ratchet The abutment face can support the ratchet clamping part 5215 of the gear piece 5212 and cause the unidirectional tooth row 522 that can not carry out relative to this Portable pillar 5211 and rotary motion of the fixing axle 53 on the first direction 91, so door-plate 21 can not be opened to more big angle Degree.And when the unidirectional tooth row 522 is intended to carry out relative to the portable pillar 5211 and rotation of the fixing axle 53 in the second direction 92 When turning (when namely closing door-plate 21), the slip plane of the unidirectional ratchet can be from the ratchet clamping part 5215 of 5212 lower end of gear piece It slips and the unidirectional tooth row 522 can be carried out relative to the portable pillar 5211 and the fixing axle 53 in the second direction 92 Rotary motion, it is possible to smoothly close door-plate 21.Therefore, unidirectional tooth when the lock-bit module 521 is located at the locked position of coupler Row 522 can only carry out fixing relative to the portable pillar 5211 with this together with the pedestal 51 (including upper pedestal 511 and lower base 512) One direction rotation of the axis 53 in the second direction 92 (namely shutdown direction).

Pullling the draught line 3 upwards by external force can drive the portable pillar 5211 to be lifted upwards together with the gear piece 5212 Height, and the lock-bit module 521 is therefore allowed to be switched to the disengaged position.At this point, the elastic element 57 can be compressed and generate one Downward thrust；Meanwhile the ratchet clamping part 5215 of 5212 lower end of gear piece is lifted up and leaves being somebody's turn to do for the unidirectional tooth row 522 Upper surface.Therefore, which can carry out together with the pedestal 51 (including upper pedestal 511 and lower base 512) relative to this The bidirectional rotation of portable pillar 5211 and the fixing axle 53 on the first direction 91 and the second direction 92.

The locating module 54 include: a locating detent 541, a plug 542, a torque spring 543 and with the locating detent 541 correspond to each other a positioning depression 5214 of cooperation.Wherein, the locating detent 541 is with more including: a upper end 5413, once End 5414, the pivot hole 5411 between the upper and lower end 5413,5414 and it is located at the upper end 5413 and the pivot Between hole 5411 and towards the convex buckle 5412 outstanding of gear piece 5212.The plug 542 is the pivot hole for initially passing through the locating detent 541 After 5411, be then passed through the torque spring 543, after sealed again, close-fitting or be welded in a keyhole 534 of 53 outer surface of fixing axle On.By such structure, it is set to the locating detent 541 in the fixing axle 53 in swingable mode and is adjacent to the gear piece 5212, and the positioning depression 5214 is then set to the gear piece 5212 towards on a side surface 5213 of the locating detent 541.

The playback element 55 is to be incorporated into 511 lower end of upper pedestal and interlock with the upper pedestal 511.The playback element 55 is Angle that one fan-shaped laminated structure but its sector extend can than be similarly fan-shaped extension the unidirectional tooth row 522 angle of strike It spends smaller.Also, the position of a driving end 551 of the playback element 55 corresponds to the upper end 5413 of the locating detent 541.

Draught line 3 is pulled when by an external force pulling handle on door-plate or brake component, draught line 3 is made to pull the lock-bit It, can be there are two types of situation when module 521 moves up.One of situation is to work as by operation brake component to pull draught line 3 The lock-bit module 521 move up one it is relatively small apart from when.At this point, although the ratchet clamping part of gear piece 5212 has disengaged from unidirectional tooth The upper surface of row 522, and lock-bit module 521 is enabled to be switched to the disengaged position；However, the gear piece 5212 positioning depression 5214 Position not yet reach can by the position of 5412 hooks of convex buckle of the locating detent 541, so, as long as pullling draught line 3 When external force one disappears, lock-bit module 521 will be returned to the worn-out lock position because of the elastic force of elastic element 57.

Another situation pulls draught line 3 when pulling the handle on door-plate by external force, so that leading as shown in Figure 9 B Lead 3 pull the lock-bit module 521 portable pillar 5211 and gear piece 5212 move up one it is relatively large apart from when, can not only make Lock-bit module 521 switches to the disengaged position, and can more allow the gear piece 5212 positioning depression 5214 can be by the locating detent 541 The convex buckle 5412 hooks positioning, and then the lock-bit module 521 is made to be maintained at the disengaged position.Even if at this point, pullling traction The external force of line 3 disappears (such as the hand of user no longer contacts handle or brake component), and door-plate 21 still is able in a predetermined angular It is freely opened and closed in range.Scheduled first jiao is met or exceeded when the door-plate 21 is opened by the door-plate fixing seat 22 When spending the angle of θ 1, the upper end 5413 that the driving end 551 of the playback element 55 just will push the locating detent 541 makes it partially Pendulum makes the convex buckle 5412 of the locating detent 541 be detached from the positioning depression 5214, lead to the positioning depression 5214 of the gear piece 5212 not It is lived again by 5412 hooks of the convex buckle of locating detent 541.At this point, the elastic force of the elastic element 57 can be by 521 elasticity of lock-bit module Return back to the locked position of coupler so that after the door-plate 21 is opened into first angle θ 1 can monodirectional locking in the door-plate fixing seat On 22.Wherein, first angle θ 1 is between 20 °~50 °.

In the second preferred embodiment of the present invention shown in Fig. 7 to Fig. 9 B, the safety catch 50 of this further includes having One convex block 561 and a helical spring 562.The convex block 561 be arranged the lower base 512 upper end and with unidirectional 522 phase of tooth row Every a suitable distance.The helical spring 562 is fixed on convex block 561 and extends one towards the lower end of the locating detent 541 5414 Predetermined length.562 position of helical spring corresponds to the lower edge (namely lower end 5414) of the locating detent 541, also, works as the door When plate 21 is fully closed, which can support and the lower edge (namely lower end 5414) of the locating detent 541 is pushed to make Its beat, and the convex buckle 5412 is enabled to be detached from the positioning depression 5214, cause the positioning depression 5214 of the gear piece 5212 no longer by 5412 hooks of convex buckle of locating detent 541 are lived, and then the lock-bit module 521 is allowed to return to the locked position of coupler.

In this second preferred embodiment, it is surrounded on the unidirectional tooth row 522 of 512 outer rim of lower base and fan-shaped extension Expanded range (angular range) is corresponding or is slightly larger than the openable maximum angle range of general vehicle door-plate.For example, generally The maximum angle that door panel can be turned on is about 80 °~100 ° or so, so, the fan-shaped expanded range of the unidirectional tooth row 522 It is also between 80 °~100 ° or so or more bigger.

Please refer to Figure 10 A to Figure 10 C, three of the second preferred embodiment of safety catch of door respectively of the invention The schematic top plan view of different operating states.

As shown in Figure 10 A, when door-plate is in completely closed state, the gear piece 5212 of the lock-bit module 521 One first end 5221 of the unidirectional tooth row 522 that position can extend adjacent to sector.At this point, the helical spring 562 can be supported And the lower end 5414 that push the locating detent 541 makes its beat, makes the convex buckle 5412 of the locating detent 541 that can leave the gear piece 5212 positioning depression 5214 is returned to locked position because of the elastic force of elastic element 57 to ensure the lock-bit module 521 meeting, Namely ensure that the ratchet clamping part 5215 of 5212 lower end of gear piece can be contacted with the upper surface of the unidirectional tooth row 522.In this case, exist Disengaged position can not be maintained at without the lock-bit module 521 when applying external force.

As shown in Figure 10 B, when door-plate is turned on a relatively small angle, θ and the relatively small angle, θ be less than this first When the state of angle, θ 1, because unidirectional tooth row 522 can all carry out phase with upper and lower pedestal 511,512 together with playback element 55 For 5211 gear piece 5212 of the portable pillar and the fixing axle 53 the first direction 91 (clockwise direction) rotary motion, so It the position of the gear piece 5212 of the lock-bit module 521 will be between the first end 5221 of the unidirectional tooth row 522 and playback member Between the driving end 551 of part 55.In this case, can rely on allows the convex buckle 5412 of locating detent 541 to be snapped into the gear piece The lock-bit module 521 is set to remain to the mesh for being maintained at the disengaged position in no external force to reach in 5212 positioning depression 5214 's.As illustrated in figure 10 c, when the angle that door-plate is turned on reaches or surpasses first angle θ 1, due to unidirectional tooth row 522 together with Playback element 55 can all continue solid with this relative to 5211 gear piece 5212 of the portable pillar together with upper and lower pedestal 511,512 Dead axle 53 the first direction 91 (clockwise direction) rotary motion, and therefore cause playback element 55 the driving end 551 The upper end 5413 for having supported, having push the locating detent 541 makes its beat, so that the convex buckle 5412 of the locating detent 541 can be left The depression 5214 of the gear piece 5212.So, it can be ensured that the lock-bit module 521 can be returned to because of the elastic force of elastic element 57 Locked position, that is, ensure that the ratchet clamping part 5215 of 5212 lower end of gear piece can be contacted with the upper surface of the unidirectional tooth row 522.Herein Under state, the lock-bit module 521 can not be maintained at disengaged position when without external force is applied.Moreover, when door-plate is turned on to most When big state, the position of the gear piece 5212 of the lock-bit module 521 will be adjacent to the second end 5222 of the unidirectional tooth row 522.

In this present embodiment, the expanded range of the playback element 55 is to be located at door-plate from the driving end 551 to be turned on first It counts until extending to the position that door-plate is driven to maximum angle position when angle, θ 1.In this way, as long as door-plate is turned on Angle when reaching or surpassing first angle θ 1, which, which can all be always held at, supports, pushes the locating detent 541 Upper end 5413 state, as long as the opening angle of door-plate is caused to reach or surpass first angle θ 1, user is certain Want ongoing operation door knob or brake component could continue outside opening-door plate.And in figure in not illustrated another embodiment, this is returned The expanded range of bit unit 55 is also possible to only fall in the position of the driving end 551, that is, the playback element 55 can be in one Thin rod shape structure rather than sector structure, and the playback element 55 of the thin rod shape structure is set to the position of the upper pedestal 511 just It is the position of the driving end 551.By such structure, only reach in the opening angle when door-plate in this spy of first angle θ 1 When determining angle, which will push the upper end 5413 of locating detent 541 to allow lock-bit module 521 to return to locking position It sets；Once user operates door knob again and the convex buckle 5412 of locating detent 541 is allowed to clasp the depression 5214 of the gear piece 5212 once again Afterwards, lock-bit module 521 can be located in the disengaged position again, even if user decontrols handle and door-plate unlatching can continue to arrive Bigger opening angle greater than first angle θ 1.

Described above to be merely exemplary for the purpose of the present invention, and not restrictive, those of ordinary skill in the art understand, Without departing from the spirit and scope defined by the claims, can many modifications may be made, variation or equivalent, but will all fall Enter within protection scope of the present invention.

Claims

1. a kind of safety catch is set between a door-plate and a door-plate fixing seat, which is able to carry out relatively In the door-plate fixing seat rotarily open and closing motion；It is characterized in that, the safety catch of this includes:

One pedestal is set on the door-plate；When door-plate carries out the breakdown action relative to the door-plate fixing seat, the pedestal is past A first direction relative to door-plate fixing seat is mobile；Relatively, when door-plate move relative to the closing of the door-plate fixing seat When making, the pedestal is mobile toward the second direction relative to door-plate fixing seat；

One single direction locking mechanism comprising have a lock-bit module and a connecting rod element, which can be in single direction On to the connecting rod element provide displacement locking function；Wherein, which is set within the pedestal and interlocks with pedestal； One end of the connecting rod element is fixed in the door-plate fixing seat and the other end protrudes into the pedestal and corresponds to the lock-bit module； Also, the lock-bit module can switch between a locked position of coupler and a disengaged position；Wherein, when lock-bit module is closed positioned at this When lock position, which can not carry out the movement relative to the connecting rod element in the first direction, institute together with the pedestal It will be unable to be carried out breakdown action with the door-plate, but the lock-bit module can still carry out in the second direction together with the pedestal Relative to the movement of the connecting rod element, so the door-plate can be by carry out closing motion；And position is loosened when lock-bit module is located at this When setting, which is able to carry out breakdown action and closing motion；And

One elastic element is incorporated into the lock-bit module, enables the lock-bit module that can be maintained at this in the state of being not affected by external force and closes In lock position；

Wherein, which further includes having: a unilateral bearing, a ring gear, a two-way bearing, a lock-bit piece and a lock-bit Sliding block；One outer portion of the unilateral bearing is fixed on an inner ring surface of the ring gear, and sets on an external annular surface of the ring gear There is a gear part, and the external annular surface of the ring gear is fixed on an internal ring portion of the two-way bearing；Outside the one of the two-way bearing Ring portion is fixed on the pedestal；The lock-bit piece is fixed on an internal ring portion of the unilateral bearing；The lock-bit sliding block is located at the pedestal It is interior and abut in the lock-bit piece, it can be to the unilateral bearing by the lock-bit sliding block and the state of supporting of the lock-bit piece between the two Internal ring portion provide a fulcrum force function, make the gear part of the ring gear that can only carry out unidirectional rotation；When lock-bit is sliding When block is left the lock-bit piece by an external force, the gear part of the ring gear can carry out bidirectional rotation；

Wherein, which has a tooth row it with the gear part remains meshing state；Also, work as the lock-bit module position When the locked position of coupler, which is to be resisted against the lock-bit piece, and when the lock-bit module is located at the disengaged position, the lock Position sliding block leaves the lock-bit piece.

2. the safety catch of door according to claim 1, it is characterised in that: further include having a playback element and one Locating module；

Wherein, which includes: a locating detent and corresponds to each other a positioning block of cooperation with the locating detent；Wherein, should Locating detent is set on the pedestal, and the locating piece is then fixed on the lock-bit sliding block of the lock-bit module；

Wherein, the connecting rod element is fixed in a connecting pin of the playback element, and the position of a driving end of the playback element is then Corresponding to the locating detent；

Wherein, a first end of the connecting rod element is articulated in the door-plate fixing seat, relies on an external force by the lock-bit modular belt It is dynamic that it is made to switch to the disengaged position, and the locating piece is enabled to be positioned by the hook of the locating detent, and it is maintained at lock-bit module The disengaged position；When the door-plate is pushed open by the door-plate fixing seat to the angle for meeting or exceeding scheduled first angle θ 1, The driving end of the playback element will push the locating detent, and the locating piece is made to be detached from the locating detent and no longer be lived by hook；At this point, The lock-bit module can be elastic recovery to the locked position of coupler by the elastic force of the elastic element so that when the door-plate be opened into this first After angle, θ 1 can monodirectional locking on the door-plate fixing seat.

3. the safety catch of door according to claim 1, it is characterised in that:

One circumference of the lock-bit piece is made of plural line segment, and non-circular arch dam；

The lock-bit sliding block, which has, to be included: a slope, the pull rod extended from the one side of the slope and is located at the drawing One head of bar end；The slope is described to provide for being resisted against a certain line segment of the circumference of the lock-bit piece The function of single direction locking mechanism；The elastic element is set on the pull rod, pulls the head that can drive the lock-bit by external force Sliding block makes the slope be detached from the line segment of the circumference of the lock-bit piece, and then allows the gear part that can carry out bidirectional rotation.

4. the safety catch of door according to claim 2, which is characterized in that further include one first draught line and One door knob；Wherein, which connects a fixing end of first draught line, and a connecting pin of first draught line is linked in the lock Position sliding block, and then the lock-bit slider displacement can be driven；Also, the operation meeting of the lock-bit slider displacement is driven by operation door knob It allows the locating piece to be positioned by the hook of the locating detent, and the lock-bit module is made to be maintained at the disengaged position；When being intended to the door-plate When being opened into greater angle by first angle θ 1, it is necessary to which pulling first draught line by the Continued depression door knob should Lock-bit sliding block is detached from the operation of the lock-bit piece, can be only achieved the operation that the door-plate is increased to opening angle by first angle θ 1； Wherein, first angle θ 1 is between 20 °~50 °.

5. the safety catch of door according to claim 2, which is characterized in that further include one second draught line and One brake component；Wherein, which is set to the door-plate, which connects a fixing end of second draught line, this second One connecting pin of draught line is connected to the lock-bit sliding block, and then can drive the lock-bit slider displacement；Wherein, by pressing brake component Operation to allow second draught line to pull the lock-bit slider displacement is not sufficient to the hook for allowing the locating piece by the locating detent Positioning, as long as the lock-bit module will be allowed to automatically revert to the locked position of coupler so unclamping the brake component；At this point, only by holding The lock-bit sliding block is detached from the lock-bit piece by continuous starting brake component, just can be carried out the operation for opening the door-plate.

6. the safety catch of door according to claim 2, which is characterized in that further include having a convex block and a spiral bullet Spring；The first end of the connecting rod element is arranged in the convex block；The helical spring is fixed on convex block and prolongs towards the locating detent Stretch a predetermined length；The helical spring position corresponds to the lower edge of the locating detent, also, when the door-plate is fully closed, should Helical spring can support the lower edge of the locating detent, and the locating piece is therefore allowed to be detached from the locating detent, and then allow the lock-bit module Return to the locked position of coupler.

7. a kind of safety catch is set between a door-plate and a door-plate fixing seat, the door-plate can carry out relative to The door-plate fixing seat rotarily open and closing motion；It is characterized in that, the safety catch of this includes:

One of one fixing axle, be fixed in the door-plate fixing seat or the door-plate the two；It is equipped in the fixing axle along it An axially extending counterbore and a fluting, and the fluting is connected to the counterbore；

One pedestal, is fixed on wherein another in the door-plate fixing seat or the door-plate the two, and the pedestal is can be pivoted relative to each other Mode be sheathed in the fixing axle；When door-plate carries out breakdown action relative to the door-plate fixing seat, the pedestal relative to The fixing axle is rotated toward a first direction；Relatively, when door-plate carries out the closing motion relative to the door-plate fixing seat, the seat Body is rotated relative to the fixing axle toward a second direction；

One single direction locking mechanism comprising have a lock-bit module and a unidirectional tooth row, which can be in single direction On provide the function of displacement locking to the unidirectional tooth row；The unidirectional tooth row is set on the pedestal and interlocks with the pedestal；The lock Position module is can be set in the fixing axle and abut in the unidirectional tooth row in a manner of relative displacement, also, the lock-bit module can By an external force effect and switch between a locked position of coupler and a disengaged position；Wherein, when lock-bit module is located at the locking When position, which can not carry out the rotation relative to the fixing axle in the first direction together with the pedestal, so should Door-plate will be unable to be carried out breakdown action, but the unidirectional tooth row can still be carried out relative to the fixing axle at this together with the pedestal Rotation in second direction, so the door-plate can be by carry out closing motion；And when lock-bit module is located at the disengaged position, it should Door-plate can be by carry out breakdown action and closing motion；And

One elastic element is incorporated into the lock-bit module, it is possible to provide an elastic force enables the lock-bit module in the state of being not affected by external force It can be maintained on the locked position of coupler；

Wherein, which further includes one side side surface for having a portable pillar and a gear piece to be fixed on the portable pillar；The work Dynamic column is placed in the counterbore of the fixing axle and protrude out the gear piece can from the fluting except the fixing axle, also, the work Dynamic column can be displaced together with the gear piece along the direction that the counterbore extends with the fluting；

Wherein, which is the fan-shaped outer ring surface for being surrounded on the pedestal and abuts in the gear piece；By the gear piece with The unidirectional tooth row supporting state and can make the unidirectional tooth row that can only carry out together with the pedestal relative to the portable pillar between the two One direction rotation in the second direction；When the lock-bit module the portable pillar by an external force effect and cause the gear piece from When opening the unidirectional tooth row, the unidirectional tooth row together with the pedestal can carry out relative to the portable pillar the first direction and this second The bidirectional rotation in direction；

Wherein, when the lock-bit module is located at the locked position of coupler, which is to be resisted against the unidirectional tooth row, and work as the lock-bit module When positioned at the disengaged position, which leaves the unidirectional tooth row.

8. the safety catch of door according to claim 7, which is characterized in that further include having a playback element and one Locating module；

Wherein, which includes: a locating detent and corresponds to each other a positioning depression of cooperation with the locating detent；Wherein, The locating detent is set in the fixing axle in swingable mode and is adjacent to the gear piece, and the positioning depression is then set to this Gear piece is towards on a side surface of the locating detent；

Wherein, which is to be incorporated into the pedestal and the position with pedestal gearing and a driving end of the playback element Corresponding to the locating detent；

Wherein, it drives the lock-bit module that it is made to switch to the disengaged position by an external force, and enables the positioning depression of the gear piece Hook by the locating detent positions, and the lock-bit module is made to be maintained at the disengaged position；When the door-plate is by the door-plate fixing seat When being opened into the angle for meeting or exceeding scheduled first angle θ 1, the driving end of the playback element will push the positioning Pawl makes the locating detent be detached from the positioning depression, the positioning depression of the gear piece is caused no longer to be lived by locating detent institute hook；At this point, The lock-bit module can be elastic recovery to the locked position of coupler by the elastic force of the elastic element so that when the door-plate be opened into this first After angle, θ 1 can monodirectional locking on the door-plate fixing seat；

Wherein, first angle θ 1 is between 20 °~50 °；

Wherein, which includes a upper pedestal and a lower base, and it is solid to be linked in this in a manner of it can be pivoted relative to each other respectively The upper and lower end of dead axle；The playback element is arranged in the upper pedestal, and the unidirectional tooth row is arranged in the lower base.

9. the safety catch of door according to claim 7, it is characterised in that:

The lower end of the gear piece has a thickness gradually thin ratchet clamping part；

It is equipped with an at least unidirectional ratchet in a upper surface of the unidirectional tooth row, each unidirectional ratchet is respectively provided with two inclinations Face, it is then the precipitous abutment face of the gradient that one of them inclined surface, which is the slip plane of gentle gradient, another inclined surface,；

When the lock-bit module is located at the locked position of coupler, the ratchet clamping part of the gear piece is to be contacted with table on this of the unidirectional tooth row Face；At this point, when the unidirectional tooth row is intended to carry out relative to portable pillar rotation in the first direction, the unidirectional ratchet should Abutment face can support the ratchet clamping part of the gear piece and cause the unidirectional tooth row can not carry out relative to the portable pillar this first Rotary motion on direction；And when the unidirectional tooth row is intended to carry out the rotation relative to the portable pillar in the second direction, it should The slip plane of unidirectional ratchet can slip from the ratchet clamping part of the gear piece and the unidirectional tooth row can be carried out relative to the activity Rotary motion of the column in the second direction；Therefore, when the lock-bit module is located at the locked position of coupler the unidirectional tooth row together with this Pedestal can only carry out the rotation of the one direction relative to the portable pillar in the second direction；

When the lock-bit module is located at the disengaged position, the ratchet clamping part of the gear piece is lifted up and leaves the unidirectional tooth row The upper surface, therefore, the unidirectional tooth row can be carried out relative to the portable pillar together with the pedestal in the first direction and the second party Upward bidirectional rotation.

10. the safety catch of door according to claim 7, which is characterized in that further include having a convex block and a spiral Spring；The convex block is arranged in the pedestal；The helical spring is fixed on convex block and extends a predetermined length towards the locating detent；It should Helical spring position corresponds to the lower edge of the locating detent, also, when the door-plate is fully closed, which can be supported simultaneously The lower edge of the locating detent is pushed, and the locating detent is therefore made to be detached from the positioning depression, lead to the positioning depression of the gear piece no longer It is lived by locating detent institute hook, and then the lock-bit module is allowed to return to the locked position of coupler.