CN211714838U - Rail surface unlocking device for bent door - Google Patents
Rail surface unlocking device for bent door Download PDFInfo
- Publication number
- CN211714838U CN211714838U CN201922209420.1U CN201922209420U CN211714838U CN 211714838 U CN211714838 U CN 211714838U CN 201922209420 U CN201922209420 U CN 201922209420U CN 211714838 U CN211714838 U CN 211714838U
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- lock
- safety
- insurance
- unlocking device
- unlocking
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- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
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Abstract
The invention discloses a rail surface unlocking device of a bent door, which comprises an inner lock assembly, a safety lock assembly and an unlocking device, wherein the unlocking device is connected with the inner lock assembly through a pull rod assembly, the pull rod assembly comprises two pull rods, the two connecting rods are hinged, the safety lock assembly comprises a safety lock tongue, a safety shaft and a safety shifting block, the safety shifting block is sleeved on the safety shaft and is in contact with a groove in the safety lock tongue, and the safety shaft drives the safety shifting block to shift the safety lock tongue.
Description
Technical Field
The invention relates to a vehicle door unlocking device, in particular to a rail surface unlocking device for a bent door.
Background
The lock of current rail vehicle cab side door is generally installed in the middle part of door leaf, and the driver generally all stands on high platform when opening the door outside the car, and at this moment the driver can reach the lock easily. However, when the driver stands on the plane of the track (not on a high platform), the door lock in the middle of the door leaf cannot be reached. At this time, a rail surface unlocking device is required to be added at the lower end of the cab door, so that a driver can conveniently open the door on a rail plane. At present, a steel wire rope is used for replacing a pull rod in a rail surface unlocking device of a bent door, but the steel wire rope can deform or even break after being used for a long time, and the reliability is not high. The rail surface unlocking device used at present has no safety lock, and potential safety hazards exist.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a rail surface unlocking device for a bent door, which solves the problems that the existing steel wire rope is easy to deform and break, and no safety lock has potential safety hazard.
The technical scheme is as follows: the rail surface unlocking device of the bent door comprises an inner lock assembly, a safety lock assembly and an unlocking device, wherein the unlocking device is connected with the inner lock assembly through a pull rod assembly, the pull rod assembly comprises two pull rods, the two connecting rods are hinged, the safety lock assembly comprises a safety lock tongue, a safety shaft and a safety shifting block, the safety shifting block is sleeved on the safety shaft, the safety shifting block is in contact with a groove in the safety lock tongue, and the safety shaft drives the safety shifting block to shift the safety lock tongue.
The inner lock assembly comprises a lock tongue and an unlocking cam, a boss is arranged on the lock tongue, the unlocking cam is connected with the pull rod assembly through a connecting pin, the unlocking cam is in contact with the boss, the pull rod assembly drives the unlocking cam to rotate, and the unlocking cam drives the boss to move so as to drive the lock tongue to move.
The spring bolt is connected with reset spring, the connecting pin is connected with reset torsion spring.
In order to support, guide and limit, the safety lock further comprises a lock box, the internal lock assembly and the safety assembly are installed in the lock box, the safety lock tongue is provided with a guide groove, a guide shaft is correspondingly arranged on the lock box, and the guide shaft is installed in the guide groove.
And a torsional spring is arranged between the safety shifting block and the lock box.
The unlocking cam is fixed with the lock box through a supporting shaft pin.
Has the advantages that: the invention solves the problem of low reliability of the steel wire rope of the rail surface unlocking device of the bent door, and the safety lock is arranged, so that the safety coefficient is higher.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a left side view of the present invention;
FIG. 3 is an assembled view of the invention in an internally locked condition;
FIG. 4 is an assembled view of the present invention in an internally unlocked state;
Detailed Description
The invention is further described below with reference to the accompanying drawings.
A rail surface unlocking device of a bent door comprises a lock box, wherein an inner lock assembly 1 and a safety lock assembly are arranged in the lock box, an unlocking device 4 is arranged below the lock box, the unlocking device 4 is connected with the inner lock assembly through a pull rod assembly 3, the pull rod assembly 3 comprises two pull rods, the two pull rods comprise an upper pull rod 31 and a lower pull rod 32, the two connecting rods are hinged, the safety lock assembly comprises a safety lock tongue 5, a safety shaft 6 and a safety shifting block 7, the safety shifting block 7 is sleeved on the safety shaft 6, a guide groove is formed in the safety lock tongue 5, a guide shaft 12 is correspondingly arranged on the lock box and is arranged in the guide groove, the guide shaft 12 not only plays a supporting and guiding role for the safety lock tongue, but also plays a limiting role, can prevent the situation that the safety lock tongue extends out too long due to vibration in the vehicle operation process, the situation that the acting point of a groove at the end part of the safety lock tongue is separated from the safety, the safety shaft 6 drives the safety shifting block 7 to shift the safety lock tongue 5, a torsion spring 13 is installed between the safety shifting block 7 and the lock box, the action of the torsion spring can enable the safety shifting block and the lock tongue to be opened and locked in two states without being separated from a dead point position due to vibration factors, the inner lock assembly 1 comprises a lock tongue 2 and an unlocking cam 8, the lock tongue 2 is provided with a boss, the unlocking cam 8 is fixed with the lock box through a supporting shaft pin 14, the unlocking cam 8 is connected with the pull rod assembly 3 through a connecting pin 9, the unlocking cam 8 is contacted with the boss, the pull rod assembly 3 drives the unlocking cam 8 to rotate, the unlocking cam 8 drives the boss to move, and then the lock tongue 2 is. The spring bolt 2 is connected with reset spring 10, and reset spring 10 other end is fixed, can realize the reseing of spring bolt 2, and connecting pin 9 is connected with reset torsion spring 11, and the other end is fixed for realize the reseing of connecting pin 9.
When the unlocking device is used, a key is used for rotating the unlocking device at the lower part, the unlocking shaft of the unlocking device can drive the pull rod assembly to move downwards, the middle of the two pull rods is connected by the hinged joint, so that the pull rod assembly can move up and down in the door leaf of the bent door so as to pull the unlocking cam to unlock, the pull rod and the unlocking cam are connected through the connecting pin, the pull rod can pull the unlocking cam to rotate around the supporting shaft pin, the unlocking cam pushes the boss connected with the lock tongue to drive the lock tongue to move rightwards, and the lock tongue is retracted into the lock box to finish unlocking. The safety lock tongue is arranged at the lower part of the lock box, a waist-shaped hole is processed in the middle, the guide shaft penetrates through the waist-shaped hole, and the safety lock tongue moves horizontally along the direction of the waist-shaped hole. The tail part of the safety lock tongue is processed with a groove, and the safety shifting block can be inserted into the groove to push the lock tongue to move. The safety shifting block is connected with the safety shaft through the square hole, when the safety shaft rotates, the safety shifting block is driven to rotate, the safety shifting block pushes the safety lock tongue, and the safety lock tongue is stretched out or retracted. When the safety lock tongue is locked, the groove, the safety shifting block and the safety shaft of the safety lock tongue can reach a dead point, so that the safety lock tongue cannot retract under the action of force in the horizontal direction, and the safety is ensured. A torsional spring is arranged between the safety shifting block and the lock box, so that the safety shifting block is prevented from being separated from a dead point position due to factors such as vibration and the like.
Claims (6)
1. The utility model provides a rail face unlocking device of bent door, its characterized in that, includes interior lock subassembly (1), insurance lock subassembly and unlocking device (4), unlocking device (4) are connected with interior lock subassembly (1) through pull rod assembly (3), pull rod assembly (3) include two sections pull rods, and two sections pull rods are articulated, insurance lock subassembly includes insurance spring bolt (5), insurance axle (6) and insurance shifting block (7), insurance shifting block (7) cup joint on insurance axle (6), insurance shifting block (7) with recess (51) contact on insurance spring bolt (5), insurance spring bolt (5) are stirred in insurance axle (6) drive insurance shifting block (7).
2. The rail surface unlocking device of the bent door according to claim 1, wherein the inner lock assembly comprises a lock tongue (2) and an unlocking cam (8), a boss is arranged on the lock tongue (2), the unlocking cam (8) is connected with the pull rod assembly (3) through a connecting pin (9), the unlocking cam (8) is in contact with the boss, the pull rod assembly (3) drives the unlocking cam (8) to rotate, and the unlocking cam (8) drives the boss to move so as to drive the lock tongue (2) to move.
3. The rail surface unlocking device of the curved door according to claim 2, wherein a return spring (10) is connected to the latch bolt (2), and a return torsion spring (11) is connected to the connecting pin (9).
4. The rail surface unlocking device of the bent door as claimed in claim 1, further comprising a lock box, wherein the inner lock assembly (1) and the safety lock assembly are installed in the lock box, the safety lock tongue (5) is provided with a guide groove, a guide shaft (12) is correspondingly arranged on the lock box, and the guide shaft is installed in the guide groove.
5. The curved door rail surface unlocking device according to claim 4, wherein a torsion spring (13) is installed between the safety shifting block (7) and the lock box.
6. The device for the orbital release of curved doors according to claim 2, characterized in that the unlocking cam (8) is fixed to the lock case by means of a supporting pin (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922209420.1U CN211714838U (en) | 2019-12-11 | 2019-12-11 | Rail surface unlocking device for bent door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922209420.1U CN211714838U (en) | 2019-12-11 | 2019-12-11 | Rail surface unlocking device for bent door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211714838U true CN211714838U (en) | 2020-10-20 |
Family
ID=72817483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922209420.1U Active CN211714838U (en) | 2019-12-11 | 2019-12-11 | Rail surface unlocking device for bent door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211714838U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113006616A (en) * | 2021-01-29 | 2021-06-22 | 南京康尼机电股份有限公司 | Triple-locking door lock device with built-in main handle outside intercity vehicle cab |
-
2019
- 2019-12-11 CN CN201922209420.1U patent/CN211714838U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113006616A (en) * | 2021-01-29 | 2021-06-22 | 南京康尼机电股份有限公司 | Triple-locking door lock device with built-in main handle outside intercity vehicle cab |
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