CN108533114B - Pneumatic locking mechanism of sliding plug door - Google Patents
Pneumatic locking mechanism of sliding plug door Download PDFInfo
- Publication number
- CN108533114B CN108533114B CN201810607625.2A CN201810607625A CN108533114B CN 108533114 B CN108533114 B CN 108533114B CN 201810607625 A CN201810607625 A CN 201810607625A CN 108533114 B CN108533114 B CN 108533114B
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- CN
- China
- Prior art keywords
- piston assembly
- sliding plug
- plug door
- locking mechanism
- movable disc
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- 230000007246 mechanism Effects 0.000 title claims abstract description 79
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/50—Power-operated mechanisms for wings using fluid-pressure actuators
- E05F15/56—Power-operated mechanisms for wings using fluid-pressure actuators for horizontally-sliding wings
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
- E05F3/02—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with pneumatic piston brakes
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F5/00—Braking devices, e.g. checks; Stops; Buffers
- E05F5/003—Braking devices, e.g. checks; Stops; Buffers for sliding wings
Landscapes
- Power-Operated Mechanisms For Wings (AREA)
Abstract
The invention relates to the technical field of sliding plug doors, in particular to a pneumatic locking mechanism of a sliding plug door. The pneumatic locking mechanism is arranged on the mechanism of the sliding plug door and is matched with the driving mechanism for use, so that the sliding plug door can complete the functions of opening and closing the door, locking, emergency and the like. The locking mechanism driven by the single-acting cylinder is simple; the pneumatic locking mechanism can be used for better preventing the phenomenon that the door leaf cannot be opened due to the damage of the locking mechanism, so that the locking mechanism is safer and more reliable.
Description
Technical Field
The invention relates to the technical field of sliding plug doors, in particular to a pneumatic locking mechanism of a sliding plug door.
Background
At present, a locking mechanism of a sliding plug door has various forms, namely a door leaf is locked by a door carrying frame locking mode through a lock catch, and a one-way non-return clutch locking mechanism is utilized. The above modes have better locking effect, but the mechanism is more complex.
Chinese patent CN201610006539.7 discloses an electric auxiliary lock, which solves the problems of high air tightness and low noise required by the double-opening sliding-plug door system. The key point of the technical scheme is that the base is provided with a pneumatic element, an operating rod and a lock tongue, the operating rod is provided with an operating block, the pneumatic element drives the operating rod to rotate, the operating block contacts the lock tongue and can push the lock tongue to rotate and pressurize, and the base further comprises a first reset mechanism and a second reset mechanism which respectively enable the operating rod and the lock tongue to recover. The pneumatic element has the advantages of low noise and good air tightness, and the first reset mechanism and the second reset mechanism are arranged to quickly restore the operating rod and the lock tongue to the unlocking state under the condition of needs. The invention uses the air cylinder as the power source, which has low noise, thus not causing noise pollution to passengers, but the mechanism is complex, and locking of random positions can not be realized.
Disclosure of Invention
The pneumatic locking mechanism of the sliding plug door is researched and invented aiming at the defects of the prior art, is arranged on the mechanism of the sliding plug door and is matched with a driving mechanism for use, so that the sliding plug door can complete the functions of opening and closing the door, locking, emergency and the like.
Aiming at the technical purposes, the invention adopts the following technical scheme:
the pneumatic locking mechanism of the sliding plug door comprises a cylinder and a clutch mechanism, wherein a piston assembly is arranged in the cylinder, the clutch mechanism is provided with a movable disc, one side of the movable disc is fixedly connected with a screw rod, and the other side of the movable disc is combined with or separated from the piston assembly; a brake structure is arranged on one side of the piston assembly, and when air flows into the air cylinder under a certain pressure, the piston assembly is pushed to move, so that the brake structure is tightly attached to the movable disc to prevent the movable disc from moving; when the air in the air cylinder flows outwards, the piston assembly and the braking structure are separated from the movable disc under the action of the return mechanism.
Further, the cylinder is a single-acting cylinder; the single-acting cylinder comprises a cylinder seat, a piston assembly, an air pipe joint, a guide shaft, a braking structure and a return mechanism; the cylinder seat is arranged on a bracket at one side of the sliding plug door, and an air pipe joint is arranged on the cylinder seat; the piston assembly is arranged in the cylinder seat; a plurality of guide shafts are arranged on the circumferential end surface of the piston assembly, and pass through the guide holes on the piston assembly and the cylinder seat respectively to enable the piston assembly to axially move along the guide shafts; the return mechanism is arranged on the guide shaft and drives the piston assembly to return; the clutch mechanism comprises a clutch mechanism fixing seat and a movable disc; the clutch mechanism fixing seat is fixedly connected with the cylinder seat, and the movable disc is placed in the clutch mechanism fixing seat.
Further, the return mechanism comprises a return spring and a check ring, the check ring is arranged at one end of the guide shaft, the return spring is sleeved on the guide shaft, one end of the return spring is pressed on the end face of the cylinder seat, and the other end of the return spring is pressed on the check ring, so that the piston assembly is driven to return.
Further, the braking structure is a friction plate, the friction plate is fixedly arranged on the end face of the piston assembly corresponding to the movable disc, and the purpose of braking the movable disc is achieved through friction during contact.
Further, the braking structure is characterized in that radial teeth are formed on the end face of the piston assembly corresponding to the movable disc, teeth matched with the piston assembly are formed on the matching surface of the movable disc corresponding to the radial teeth, and the movable disc is braked through the teeth matched with the piston assembly when the teeth are contacted.
Further, the clutch mechanism further comprises a bearing, a coupler and a key; the bearing is arranged in the clutch mechanism fixing seat; the movable disk is arranged on the inner ring of the bearing and is fixed with the screw rod of the sliding plug door through the coupler and the key, the outer ring of the bearing is fixedly connected with the fixed seat of the clutch mechanism, and the inner ring of the bearing and the movable disk synchronously rotate.
As a further development of the invention, the invention is also suitable for installation on a transmission mechanism connected to a screw.
As a further development of the invention, the invention is also applicable to a locking mechanism of a single-opening sliding-plug door or a locking mechanism of a double-opening sliding-plug door driven by a screw rod.
According to the technical scheme, compared with the prior art, the invention has the following beneficial effects: the locking mechanism driven by the single-acting cylinder is simple; the pneumatic locking mechanism can be used for better preventing the phenomenon that the door leaf cannot be opened due to the damage of the locking mechanism, so that the locking mechanism is safer and more reliable.
Drawings
FIG. 1 is a schematic illustration of the installation of a pneumatic locking mechanism of a sliding plug door on the sliding plug door;
Fig. 2 is a schematic structural view of a pneumatic locking mechanism of the sliding plug door.
In the figure: 1-pneumatic locking mechanism, 2-right support, 3-right lead screw, 4-solenoid valve, 5-right drive nut, 6-right portal frame, 7-right door leaf, 8-left door leaf, 9-left portal frame, 10-left drive nut, 11-cylinder block, 12-piston assembly, 13-air pipe joint, 14-friction plate, 15-guiding axle, 16-return spring, 17-retaining ring, 21-clutch mechanism fixing base, 22-bearing, 23-movable disk, 24-coupling, 25-key, 31-left lead screw, 32-left support, 33-driving motor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1, a pneumatic locking mechanism 1 of a sliding plug door is schematically installed on the sliding plug door.
As shown in fig. 2, a schematic structural diagram of a pneumatic locking mechanism 1 of a sliding plug door is shown. A pneumatic locking mechanism 1 of a sliding plug door comprises a single-acting cylinder and a clutch mechanism. The single-acting cylinder comprises a cylinder seat 11, a piston assembly 12, an air pipe joint 13, a friction plate 14, a guide shaft 15, a return spring 16 and a check ring 17. The cylinder seat 11 is arranged on the right bracket 2, the cylinder seat 11 is provided with an air pipe joint 13 for inputting and outputting air flow, the piston assembly 12 is arranged in the cylinder seat 11, the end surface of the piston assembly 12 is provided with a friction plate 14 for being connected with or separated from the end surface of a movable disc 23, the circumferential end surface of the piston assembly 12 is uniformly provided with a plurality of guide shafts 15, the guide shafts 15 respectively penetrate through the guide holes on the piston assembly 12 and the cylinder seat 11 to enable the piston assembly 12 to axially move along the guide shafts 15, the other end of the guide shaft 15 is provided with a check ring 17, a return spring 17 is sleeved on the guide shafts 15, one end of the return spring is pressed on the end surface of the cylinder seat 11, and the other end of the return spring is pressed on the check ring 17. The guide shaft 15 allows the piston assembly 12 to move in the axial direction while preventing the piston assembly 12 from rotating in the cylinder block 11.
The clutch mechanism consists of a clutch mechanism fixing seat 21, a bearing 22, a movable disc 23, a coupler 24 and a key 25. The clutch mechanism fixing seat 21 is fixedly connected with the cylinder seat 11, the bearing 22 is arranged in the clutch mechanism fixing seat 21, the movable disc 23 is arranged on the inner ring of the bearing 22, and the movable disc is fixed with the right screw rod 3 of the sliding plug door through the coupler 24 and the key 25.
When air flows to the air cylinder from the air pipe joint 13, the piston assembly 12 moves along the guide shaft 15 under the action of air pressure, so that the friction plate 14 arranged at the front end of the piston assembly 12 is tightly attached to the movable plate 23, and the rotary movement of the left screw rod 31 and the right screw rod 3 is prevented, so that the left door leaf 8 and the right door leaf 7 are locked.
When the air in the air cylinder is communicated with the atmosphere through the air pipe joint 13, the return spring 16 pulls the piston assembly 12 and drives the friction plate 14 to be separated from the movable plate 23, and the driving motor can move the left door leaf 8 and the right door leaf 7 through the left screw rod 31, the right screw rod 3, the left driving nut 10 and the right driving nut 5 and the left door carrying frame 9 and the right door carrying frame 6. In this case, the sliding door can also be opened manually in an emergency situation.
The working principle of the invention is as follows: when the door is closed: the driving motor works and simultaneously deflates the air cylinder through the electromagnetic valve 4, the driving motor 33 rotates to drive the left screw rod 31 and the right screw rod 3 to rotate, and the left door carrying frame 9 and the right door carrying frame 6 drive the left door leaf 8 and the right door leaf 7 to move through the left transmission nut 10 and the right transmission nut 5. When the door leaf is closed in place, the driving motor 33 is powered off, the air cylinder is inflated through the electromagnetic valve 4 and the air pipe joint 13, the piston assembly 12 moves under certain air pressure, the friction plate 14 is pushed to press the movable disc 23, the screw rod stops moving, the door carrying frame with the tail end of the transmission chain and the door leaf are locked, and the system is kept in a door closing state.
When the door is opened: the air cylinder is deflated through the air pipe joint 13 and the electromagnetic valve 4, and meanwhile the driving motor 33 is enabled to work to drive the left screw rod 31, the right screw rod 3 and the sliding plug door leaf to move towards the door opening direction until the driving mechanism is powered off after the door is opened in place.
In case of emergency: at this point, the door is closed and the single-acting cylinder is deflated, and the piston assembly 12 and friction plate 14 are moved away from the actuator disc 23 by the return spring 16. The door leaf is pushed by hand, so that the sliding plug door can be easily opened.
While the application has been disclosed in terms of preferred embodiments, the embodiments are not intended to limit the application. Any equivalent changes or modifications can be made without departing from the spirit and scope of the present application, and are intended to be within the scope of the present application. The scope of the application should therefore be determined by the following claims.
Claims (9)
1. The utility model provides a pneumatic locking mechanism of sliding plug door, includes cylinder and clutch mechanism, its characterized in that: the cylinder is internally provided with a piston assembly, the clutch mechanism is provided with a movable disc, one side of the movable disc is fixedly connected with the screw rod, and the other side of the movable disc is combined with or separated from the piston assembly; a brake structure is arranged on one side of the piston assembly, and when air flows into the air cylinder under a certain pressure, the piston assembly is pushed to move, so that the brake structure is tightly attached to the movable disc to prevent the movable disc from moving; when the air in the air cylinder flows outwards, the piston assembly and the braking structure are separated from the movable disc under the action of the return mechanism.
2. A pneumatic locking mechanism for a sliding plug door as claimed in claim 1, wherein: the cylinder is a single-acting cylinder; the single-acting cylinder comprises a cylinder seat, a piston assembly, an air pipe joint, a guide shaft, a braking structure and a return mechanism; the cylinder seat is arranged on a bracket at one side of the sliding plug door, and an air pipe joint is arranged on the cylinder seat; the piston assembly is arranged in the cylinder seat; a plurality of guide shafts are arranged on the circumferential end surface of the piston assembly, and pass through the guide holes on the piston assembly and the cylinder seat respectively to enable the piston assembly to axially move along the guide shafts; the return mechanism is arranged on the guide shaft and drives the piston assembly to return; the clutch mechanism comprises a clutch mechanism fixing seat and a movable disc; the clutch mechanism fixing seat is fixedly connected with the cylinder seat, and the movable disc is placed in the clutch mechanism fixing seat.
3. A pneumatic locking mechanism for a sliding plug door as claimed in claim 2, wherein: the return mechanism comprises a return spring and a check ring, the check ring is arranged at one end of the guide shaft, the return spring is sleeved on the guide shaft, one end of the return spring is pressed on the end face of the cylinder seat, and the other end of the return spring is pressed on the check ring.
4. A pneumatic locking mechanism for a sliding plug door as claimed in claim 2, wherein: the braking structure is a friction plate which is fixedly arranged on the end face of the piston assembly corresponding to the movable disc.
5. A pneumatic locking mechanism for a sliding plug door as claimed in claim 2, wherein: the braking structure is that radial teeth are formed on the end face of the piston assembly corresponding to the movable disc, and teeth matched with the piston assembly are formed on the matching surface of the movable disc corresponding to the radial teeth.
6. A pneumatic locking mechanism for a sliding plug door as claimed in claim 2, wherein: the clutch mechanism further comprises a bearing, a coupler and a key; the bearing is arranged in the clutch mechanism fixing seat; the movable disc is arranged on the bearing inner ring and is fixed with the screw rod of the sliding plug door through the coupler and the key.
7. A pneumatic locking mechanism for a sliding plug door according to any one of claims 1 to 6, wherein: the pneumatic locking mechanism is arranged on a transmission mechanism connected with the screw rod.
8. A single sliding plug door of lead screw transmission, its characterized in that: the screw-driven single-opening sliding plug door adopts the pneumatic locking mechanism as claimed in any one of claims 1 to 6.
9. A lead screw driven double-open sliding plug door is characterized in that: the screw-driven double-opening sliding-plug door adopts the pneumatic locking mechanism as claimed in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810607625.2A CN108533114B (en) | 2018-06-13 | 2018-06-13 | Pneumatic locking mechanism of sliding plug door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810607625.2A CN108533114B (en) | 2018-06-13 | 2018-06-13 | Pneumatic locking mechanism of sliding plug door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108533114A CN108533114A (en) | 2018-09-14 |
| CN108533114B true CN108533114B (en) | 2024-05-03 |
Family
ID=63470851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810607625.2A Active CN108533114B (en) | 2018-06-13 | 2018-06-13 | Pneumatic locking mechanism of sliding plug door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108533114B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0485249A1 (en) * | 1990-11-09 | 1992-05-13 | Renault Vehicules Industriels | Actuating and locking device for doors of industrial vehicles intended for public transport |
| JPH0552073A (en) * | 1991-08-23 | 1993-03-02 | Toray Eng Co Ltd | Opening/closing device for door |
| JPH11229710A (en) * | 1998-02-12 | 1999-08-24 | Daihatsu Diesel Mfg Co Ltd | Electric door opening/closing device |
| EP1600590A2 (en) * | 2004-05-25 | 2005-11-30 | Bayerische Motoren Werke Aktiengesellschaft | Stop buffer |
| CN1891963A (en) * | 2005-07-08 | 2007-01-10 | 斯塔比卢斯有限责任公司 | Apparatus for powered moving of a vehicle lid pivotable around an axis of rotation |
| CN101715504A (en) * | 2007-05-03 | 2010-05-26 | 瓦博泰克控股公司 | Locking mechanism for pneumatic differential engine for power-operated doors |
| CN208329997U (en) * | 2018-06-13 | 2019-01-04 | 江苏惠民交通设备有限公司 | A kind of pneumatic locking mechanism of stopping sliding door |
-
2018
- 2018-06-13 CN CN201810607625.2A patent/CN108533114B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0485249A1 (en) * | 1990-11-09 | 1992-05-13 | Renault Vehicules Industriels | Actuating and locking device for doors of industrial vehicles intended for public transport |
| JPH0552073A (en) * | 1991-08-23 | 1993-03-02 | Toray Eng Co Ltd | Opening/closing device for door |
| JPH11229710A (en) * | 1998-02-12 | 1999-08-24 | Daihatsu Diesel Mfg Co Ltd | Electric door opening/closing device |
| EP1600590A2 (en) * | 2004-05-25 | 2005-11-30 | Bayerische Motoren Werke Aktiengesellschaft | Stop buffer |
| CN1891963A (en) * | 2005-07-08 | 2007-01-10 | 斯塔比卢斯有限责任公司 | Apparatus for powered moving of a vehicle lid pivotable around an axis of rotation |
| CN101715504A (en) * | 2007-05-03 | 2010-05-26 | 瓦博泰克控股公司 | Locking mechanism for pneumatic differential engine for power-operated doors |
| CN208329997U (en) * | 2018-06-13 | 2019-01-04 | 江苏惠民交通设备有限公司 | A kind of pneumatic locking mechanism of stopping sliding door |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108533114A (en) | 2018-09-14 |
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