CN109610959B - Double-control unlocking device for limiting lock of cab door - Google Patents
Double-control unlocking device for limiting lock of cab door Download PDFInfo
- Publication number
- CN109610959B CN109610959B CN201811290987.XA CN201811290987A CN109610959B CN 109610959 B CN109610959 B CN 109610959B CN 201811290987 A CN201811290987 A CN 201811290987A CN 109610959 B CN109610959 B CN 109610959B
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- unlocking
- door
- lock
- flexible shaft
- handle
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
- E05C17/02—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means
Abstract
The invention discloses a double-control unlocking device for a cab door limit lock, which relates to the technical field of engineering machinery auxiliary equipment and comprises an unlocking switch and a door limit lock, wherein the unlocking switch and the door limit lock are driven by a flexible shaft; compared with the prior art, the door limiting lock is simple and attractive in structure, the door limiting lock and the unlocking switch are connected and driven through the flexible shaft, and the door limiting lock and the unlocking switch can be flexibly arranged at different positions; the door unlocking handle of the cab is usually arranged at the height which can be operated by a person standing on the ground, and is placed at the position where the door is opened and closed in a relatively labor-saving manner, and when the condition that the door is unlocked on the ground by standing is met, the coherent operation of unlocking the door limiting lock and closing the door can be realized by holding the door lock handle of the cab by hand.
Description
Technical Field
The invention relates to the technical field of engineering machinery auxiliary equipment, in particular to a double-control unlocking device for a limiting lock of a cab door.
Background
At present loader cab door is being opened the back, because cab door is heavy, in order to prevent that the appearance from rotating by oneself because of external force or self gravity door, causing the driver to get on or off the bus in-process extruded phenomenon, spacing lock of installation generally on cab door, spacing lock generally for location latch or ordinary compressed air spring, spacing lock is after cab door is opened, lets its device of fixing at a certain angle. Present driver's cabin door limit lock device generally includes unlocking switch and threshold limit lock, passes through the flexible axle drive between unlocking switch and the threshold limit lock, and it is convenient usually for the driver to unblock in the driver's cabin, all arranges unlocking switch in the inclined to the middle upper position of driver's cabin, as shown in fig. 1 and fig. 2, the unblock mode of structure can have following not enoughly like this:
1. the door positioning lock cannot be unlocked standing on the ground: because the door limit lock unlocking switch is arranged at the middle-upper part of the cab and is far away from the ground, the door limit lock needs to be unlocked firstly before a driver gets off the vehicle every time, and the driver needs to climb into the cab again to unlock the door after getting off the ground if forgetting to unlock the door limit lock firstly, so that the unlocking is inconvenient;
2. is unsafe; the driver unloads the plantago and unties the positioning lock earlier, if the in-process of getting off appears blowing or takes place to rotate because of the door dead weight, the driver has the risk of being crowded to by the door, has the potential safety hazard.
Disclosure of Invention
The invention aims to provide a double-control unlocking device for a limiting lock of a cab door, which is convenient for unlocking the limiting lock inside and outside the door.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: including unblock switch and door limit lock, pass through flexible axle drive between unblock switch and the door limit lock, unblock switch comprises indoor unblock switch and outdoor unblock switch, the flexible axle head end with the door limit lock is connected, the flexible axle tail end with outdoor unblock switch connects, the interior slider of indoor unblock switch is established door limit lock with between the outdoor unblock switch on the flexible axle section.
In the above technical solution, a more specific solution may also be: the flexible shaft is composed of two sections of guide hoses and a tube core sleeved in the two sections of guide hoses, the middle section of the tube core is exposed, and the exposed section of the tube core is connected with an inner sliding block of the indoor unlocking switch through a pin shaft.
Further: the indoor unlocking switch is provided with a handle, an unlocking button is arranged outside the handle and is linked with the inner slide block arranged on the inner side of the handle, and the upper end and the lower end of the inner side of the handle are respectively provided with a positioning ring block for the flexible shaft to pass through.
Further: the outdoor unlocking switch is provided with an unlocking handle, an unlocking button is arranged on the upper portion of the outer side of the unlocking handle, a connecting rod mechanism is connected to the upper portion of the inner side of the unlocking handle through a pin shaft, the connecting rod mechanism and a flexible shaft fixing support are sequentially connected to the upper portion of the inner side of the unlocking handle through a pin shaft, a cab door lock connecting rod is connected to the connecting rod mechanism, the tube core extending end of the flexible shaft is fixedly connected with the flexible shaft fixing support, a guide hose of the flexible shaft is fixed in a positioning groove of the connecting rod mechanism, the tube core extending end of the flexible shaft is fixedly connected with the support, and the guide hose of the flexible shaft.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following beneficial effects:
1. the flexible shaft is optimized, so that the flexible shaft can be driven by the in-door unlocking switch at the middle section and can also be driven by the out-door unlocking switch at the tail end, and the dual-drive function is realized; the door unlocking handle of the cab is usually arranged at the height which can be operated by a person standing on the ground, and is placed at the position where the door is opened and closed in a relatively labor-saving manner, and when the condition that the door is unlocked on the ground by standing is met, the coherent operation of unlocking the door limiting lock and closing the door can be realized by holding the door lock handle of the cab by hand.
2. Because the inboard upper portion of unblock handle has connected gradually link mechanism and flexible axle fixed bolster through the round pin axle, the last driver's cabin door lock connecting rod that is connected with of link mechanism, the tube core of flexible axle stretches out the end and is connected fixedly with the flexible axle fixed bolster, through the link mechanism who optimizes driver's cabin door unblock handle, with the terminal drive integration of flexible axle on driver's cabin door unblock handle, realize the two accuse of driver's cabin door unblock handle, can control driver's cabin door lock AND gate spacing lock respectively, need not arrange the unblock that extra unlocking device is used for the spacing lock of door.
Drawings
Fig. 1 is a schematic view of a prior art structure.
Fig. 2 is a schematic diagram of a prior art structure.
Fig. 3 is a schematic structural diagram of the present invention.
FIG. 4 is a schematic structural diagram of the connection between the indoor unlocking switch and the flexible shaft.
Fig. 5 is a schematic structural diagram of the flexible shaft of the invention.
Fig. 6 is an exploded view of the outdoor unlock switch of the present invention.
FIG. 7 is a schematic structural view of the connection between the outdoor unlocking switch and the flexible shaft.
Detailed Description
The invention is further described in detail below with reference to the accompanying examples. However, the present invention is not limited to the following examples.
The embodiment shown in fig. 3-7 comprises an unlocking switch and a door limit lock, the unlocking switch and the door limit lock are driven by a flexible shaft, the unlocking switch is composed of an indoor unlocking switch 2 and an outdoor unlocking switch 3, the flexible shaft is composed of two sections of guide hoses 1-2 and 1-3 and a tube core 1-1 sleeved in the two sections of guide hoses, the middle section of the tube core 1-1 is exposed, the tube core 1-1 can move relative to the hoses 1-2 and 1-3, the tube core 1-1 can be a flexible tube core, the head end of the flexible shaft 1, namely, the tube core head 1-1-1 extending out of the outer end of the guide hose 1-2 is connected with the door limit lock 4, and the outer end of the guide hose 1-2 is abutted to the door limit lock bracket 5; the tail end of the flexible shaft, namely the end 1-1-2 of the tube core extending out of the outer end of the guide hose 1-3 is connected with an external unlocking switch 3; an inner sliding block 2-3 of the indoor unlocking switch 2 is provided with a shaft hole 2-4, and the shaft hole 2-4 is fixedly connected with an exposed section of the tube core 1-1 through a pin shaft 6; the indoor unlocking switch 2 is provided with a handle 2-1, an unlocking button 2-2 is arranged outside the handle and is linked with an inner slide block 2-3 arranged on the inner side of the handle, and the upper end and the lower end of the inner side of the handle 2-1 are respectively provided with a positioning ring block 2-5 for a flexible shaft 1 to pass through and a guide hose for fixing the flexible shaft; the outdoor unlocking switch 3 is provided with an unlocking handle 3-1, the upper part of the outer side of the unlocking handle is provided with an unlocking button 3-2, the upper part of the inner side of the unlocking handle is sequentially connected with a link mechanism 3-3 and a flexible shaft fixing support 3-4 through a pin shaft, the link mechanism 3-3 is connected with a cab door lock connecting rod 7, the extending end of a tube core of the flexible shaft is fixedly connected with the flexible shaft fixing support 3-4, a guide hose 1-3 of the flexible shaft is fixed in a positioning groove of the link mechanism 3-3, the extending end of the tube core of the flexible shaft, namely the tube core end 1-1-2 extending from the outer end of the guide hose 1-3, is fixedly connected with the flexible shaft fixing support 3-4, and the guide hose 1-.
The principle of unlocking in the door is as follows: an unlocking button on a handle of the indoor unlocking switch 2 is pressed, an inner sliding block on the inner side of the handle can rotate downwards to drive a tube core of the flexible shaft to move downwards, and therefore the flexible shaft is driven to unlock the limit locks.
The unlocking principle outside the door is as follows: when the cab door is opened and fixed on the door limit lock, a button on an external unlocking handle of the cab door is directly pressed, a push rod on the unlocking button can push a mechanism connected with a door lock connecting rod 7 part on a connecting rod mechanism 3-3 to rotate, when the connecting rod mechanism 3-3 rotates, a flexible shaft can be driven, so that a tube core end 1-1-2 extending out of the outer end of a guide hose 1-3 is lengthened, the length of a tube core head 1-1-1 extending out of the outer end of the guide hose 1-2 is correspondingly shortened, and the unlocking of the door limit lock is realized; when the cab door is closed, the button on the unlocking handle of the cab door is directly pressed, the connecting rod mechanism can rotate downwards around the fixed point, the connecting rod of the cab door lock is driven to move downwards, and the connecting rod can unlock the cab door lock.
Claims (3)
1. The utility model provides a two accuse unlocking device of spacing lock of driver's cabin door, includes unlocking switch and threshold spacing lock, through flexible axle drive, its characterized in that between unlocking switch and the threshold spacing lock: the unlocking switch is composed of an indoor unlocking switch (2) and an outdoor unlocking switch (3), the head end of the flexible shaft is connected with the door limit lock, the tail end of the flexible shaft is connected with the outdoor unlocking switch (3), an inner sliding block (2-3) of the indoor unlocking switch (2) is arranged on the flexible shaft section between the door limit lock and the outdoor unlocking switch (3), and the door limit lock is a device which is fixed at a certain angle after a cab door is opened; the outdoor unlocking switch is provided with an unlocking handle (3-1), an unlocking button (3-2) is arranged at the upper part of the outer side of the unlocking handle, a connecting rod mechanism (3-3) and a flexible shaft fixing support (3-4) are sequentially connected to the upper part of the inner side of the unlocking handle through a pin shaft, a cab door lock connecting rod (7) is connected to the connecting rod mechanism (3-3), the extending end of a tube core of the flexible shaft is fixedly connected with the flexible shaft fixing support (3-4), and a guide hose (1-3) of the flexible shaft is fixed in a positioning groove of the connecting rod mechanism (3-3); when the cab door is closed, the button on the cab door unlocking handle is directly pressed, the connecting rod mechanism can rotate downwards around the fixed point to drive the cab door lock connecting rod to move downwards, and the cab door lock connecting rod can unlock the cab door lock.
2. The double-control unlocking device for the limiting lock of the cab door according to claim 1, wherein: the flexible shaft is composed of two sections of guide hoses and a tube core (1-1) sleeved in the two sections of guide hoses, the middle section of the tube core is exposed, and the exposed section of the tube core is connected with an inner slide block (2-3) of the indoor unlocking switch (2) through a pin shaft (2-4).
3. The double-control unlocking device for the limiting lock of the cab door according to claim 1 or 2, wherein: the indoor unlocking switch is provided with a handle (2-1), an unlocking button (2-2) is arranged outside the handle and is linked with an inner sliding block (2-3) arranged on the inner side of the handle, and the upper end and the lower end of the inner side of the handle are respectively provided with a positioning ring block (2-5) for the flexible shaft to pass through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811290987.XA CN109610959B (en) | 2018-10-31 | 2018-10-31 | Double-control unlocking device for limiting lock of cab door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811290987.XA CN109610959B (en) | 2018-10-31 | 2018-10-31 | Double-control unlocking device for limiting lock of cab door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109610959A CN109610959A (en) | 2019-04-12 |
| CN109610959B true CN109610959B (en) | 2021-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811290987.XA Active CN109610959B (en) | 2018-10-31 | 2018-10-31 | Double-control unlocking device for limiting lock of cab door |
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| CN (1) | CN109610959B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110499975A (en) * | 2019-08-28 | 2019-11-26 | 龙工(上海)机械制造有限公司 | A kind of loader cab door positioning locking device and application method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956342A (en) * | 2017-11-23 | 2018-04-24 | 广西柳工机械股份有限公司 | Limitation locking device |
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| JPH05118173A (en) * | 1991-10-29 | 1993-05-14 | Iseki & Co Ltd | Unlocking device of cabin door |
| JP3173735B2 (en) * | 1991-10-31 | 2001-06-04 | 株式会社アルファ | Door handle connection device |
| US5609065A (en) * | 1995-06-06 | 1997-03-11 | Caterpillar Inc. | Cable actuator assembly |
| US6264257B1 (en) * | 1999-10-08 | 2001-07-24 | Adac Plastics, Inc. | Motor vehicle door handle assembly |
| KR100348080B1 (en) * | 1999-12-31 | 2002-08-09 | 현대자동차주식회사 | locking apparatus for door of automobile |
| JP3966505B2 (en) * | 2002-07-11 | 2007-08-29 | 新キャタピラー三菱株式会社 | Door unlocking device in construction machinery |
| CN102011527B (en) * | 2009-09-04 | 2013-06-12 | 三井金属爱科特株式会社 | Door locking system of motor vehicle |
| CN103132826B (en) * | 2013-02-07 | 2015-03-11 | 玉环天润航空机械制造有限公司 | Locking mechanism of cockpit door |
| JP5319029B1 (en) * | 2013-02-22 | 2013-10-16 | 株式会社小松製作所 | Construction machinery cab and construction machinery |
| CN204002146U (en) * | 2014-08-19 | 2014-12-10 | 十堰正和车身有限公司 | A kind of syndeton of door lock of shop truck |
| CN105857568B (en) * | 2016-03-31 | 2018-04-13 | 成都富力威航科技有限公司 | A kind of inside and outside coordinated type hatch door latch mechanism |
| CN207073343U (en) * | 2017-07-06 | 2018-03-06 | 北京汽车研究总院有限公司 | A kind of automobile door external handle structure and automobile |
| CN207363436U (en) * | 2017-10-18 | 2018-05-15 | 卡特彼勒公司 | Unlocking mechanism for cab door and the engineering truck including the unlocking mechanism |
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2018
- 2018-10-31 CN CN201811290987.XA patent/CN109610959B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956342A (en) * | 2017-11-23 | 2018-04-24 | 广西柳工机械股份有限公司 | Limitation locking device |
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| CN109610959A (en) | 2019-04-12 |
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