CN210217427U - Three-point locking device of railway vehicle cab door - Google Patents
Three-point locking device of railway vehicle cab door Download PDFInfo
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- CN210217427U CN210217427U CN201920881753.6U CN201920881753U CN210217427U CN 210217427 U CN210217427 U CN 210217427U CN 201920881753 U CN201920881753 U CN 201920881753U CN 210217427 U CN210217427 U CN 210217427U
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- door
- shifting fork
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Abstract
The utility model discloses a three-point locking device of a railway vehicle cab door, which comprises an upper door lock component, a middle door lock component and a lower door lock component, wherein two sides of the middle door lock component in the vertical direction are respectively connected with the upper door lock component and the lower door lock component through two connecting rods; the middle door lock assembly comprises a lock shell, a handle shifting fork, a linkage plate, a lock tongue and a handle, wherein the linkage plate is horizontally arranged in the lock shell in a sliding manner, and the handle shifting fork is rotatably arranged in the lock shell and is provided with a first pushing part; the handle is connected with the handle shifting fork in a linkage way; the lock tongue is connected with one horizontal side of the linkage plate; the two sides of the linkage plate corresponding to the vertical direction are respectively provided with a guide groove which is arranged in an inclined manner, the end part of the connecting rod is provided with a first pin shaft, two side walls of the lock shell are provided with first sliding openings, and the first pin shaft penetrates through the guide grooves and is placed into the first sliding openings at the two sides; in the process that the handle is rotated to drive the handle shifting fork to rotate, the handle shifting fork can push the linkage plate to move horizontally, so that the lock tongue and the connecting rods on the two sides are contracted.
Description
Technical Field
The utility model relates to a rail vehicle equipment technical field, in particular to three point locking device of rail vehicle cab door.
Background
The cab is an important area in the locomotive, not only is the space where the operation table is located, but also is the operation space of operators, and the safety operation of the whole locomotive is concerned. However, most of the existing locomotive cabs adopt a large door lock to control the opening and closing of the door, the locking structure is very simple, when the locomotive vibrates violently, the door of the locomotive is not firmly locked, the door lock is easy to open, and a great unsafe factor exists.
In order to solve the above problems, the three-point locking device (No. CN 206829850) for the cab door of a locomotive disclosed in the chinese patent is proposed, but the structure of the technical solution is complicated, especially the middle door lock assembly has many transmission components, the middle connecting rods on both sides of the lock case drive the rotating shaft to rotate through the handle and touch the middle rotating blocks on both sides to rotate and drive the movement, the rotating structure is complicated, the transmission stability is poor, and there is a room for improvement.
SUMMERY OF THE UTILITY MODEL
The utility model relates to an overcome defect among the above-mentioned prior art, provide a three point locking device of rail vehicle cab door, its simple structure, the few just connection between each part of drive disk assembly is reliable, and transmission stability is high.
In order to achieve the purpose, the utility model provides a three-point locking device of a railway vehicle cab door, which comprises an upper door lock component, a middle door lock component and a lower door lock component which are vertically arranged, wherein two sides of the middle door lock component in the vertical direction are respectively connected with the upper door lock component and the lower door lock component through two connecting rods;
the middle door lock assembly comprises a lock shell, a handle shifting fork, a linkage plate, a lock tongue and a handle, wherein the linkage plate is horizontally arranged in the lock shell in a sliding manner, the handle shifting fork is rotatably arranged in the lock shell and is provided with a first pushing part capable of pushing the linkage plate to move in a rotating process;
the handle is in linkage connection with the handle shifting fork;
the lock bolt is connected with one side of the linkage plate in the horizontal direction to form linkage, the two connecting rods are respectively positioned on two sides of the linkage plate in the vertical direction, guide grooves which are obliquely arranged are formed in two sides of the linkage plate corresponding to the vertical direction, the guide grooves in the two sides are arranged in a splayed structure, first hinge pins are arranged at the end parts of the two connecting rods, vertically arranged first sliding openings are correspondingly formed in two opposite side walls of the lock shell, and the end parts of the first hinge pins are respectively placed into the first sliding openings in the two sides after penetrating through the guide grooves;
when the handle is rotated to drive the handle shifting fork to rotate, the handle shifting fork can push the linkage plate to move horizontally, so that the lock tongue and the connecting rods on the two sides are contracted.
Further setting the following steps: the spring bolt includes pole portion, be formed with the deflector of vertical setting in the lock shell, be provided with the guiding hole on this deflector, the pole portion of spring bolt is connected with the linkage plate after passing the guiding hole, the both ends that the cover was equipped with the spring on the pole portion and this spring respectively with spring bolt and deflector butt.
Further setting the following steps: a sleeving connection column is arranged in the lock shell, a torsion spring is sleeved on the sleeving connection column, and two ends of the torsion spring are respectively connected with the linkage plate and the lock shell.
Further setting the following steps: and the two opposite side walls of the lock shell are correspondingly provided with second sliding openings which are horizontally and transversely arranged and used for limiting the sliding of the linkage plate.
Further setting the following steps: a supporting plate is horizontally arranged in the lock shell, and the linkage plate is provided with a horizontal supporting edge which is supported against the supporting plate.
Further setting the following steps: the lock also comprises a lock cylinder shifting fork, a door handle, a shifting lever and a rotating tongue type door lock;
the lock cylinder shifting fork is rotatably arranged in the lock shell and is provided with a second pushing part which pushes the linkage plate to move in the rotating process;
the door handle is in linkage connection with the lock cylinder shifting fork;
one end of the shifting rod is sleeved on the lock cylinder shifting fork and linked with the lock cylinder shifting fork, and the other end of the shifting rod is connected with the rotating tongue type door lock.
Further setting the following steps: the handle shifting fork is located the front side of lock core shifting fork, linkage plate corresponds second promotion portion department and is provided with the portion of stepping down, should step down the portion and can avoid the handle shifting fork to promote linkage plate motion in-process and take place to touch with second promotion portion.
Compared with the prior art, the utility model discloses simple structure, convenient operation, middle lock subassembly spare part is few, connects reliably between each part, and transmission stability is high, rotates through handle shift fork or lock core shift fork and can promote linkage plate motion and linkage spring bolt and connecting rod shrink, can realize the stable of linkage plate, closure and connecting rod simultaneously and reset under the effect of spring and torsional spring to realize that locking device's stability is opened or is closed.
Drawings
Fig. 1 is a schematic structural view of a three-point locking device of a railway vehicle driver's door of the present invention;
FIG. 2 is a schematic illustration of a breakaway configuration of the intermediate door lock assembly;
fig. 3 is a schematic view of the connection of the components inside the lock case.
The following reference numerals are marked thereon in conjunction with the accompanying drawings:
1. an upper door lock assembly; 2. a middle door lock assembly; 21. a lock case; 211. a first sliding port; 212. a guide plate; 213. a second sliding port; 214. a backup plate; 215. sleeving the column; 216. a front housing; 217. a rear housing; 22. a linkage plate; 221. a guide groove; 222. abutting against the edge; 223. a relief portion; 23. a handle fork; 231. a first pushing part; 24. a handle; 25. a latch bolt; 251. a rod portion; 252. a second pin shaft; 26. a lock cylinder shifting fork; 261. a second pushing portion; 27. a deflector rod; 28. a door handle; 29. a rotating-tongue type door lock; 3. a lower door lock assembly; 4. a first link; 41. a first pin shaft; 5. a second link; 6. a spring; 7. a torsion spring.
Detailed Description
In the following, an embodiment of the present invention will be described in detail with reference to the drawings, but it should be understood that the scope of the present invention is not limited by the embodiment.
The utility model relates to a three point locking structure of rail vehicle cab door is shown in figure 1, and it mainly applies to rail vehicle's cab door, including vertical last lock subassembly 1, middle lock subassembly 2 and lower lock subassembly 3 of arranging, wherein, the both sides that middle lock subassembly 2 corresponds vertical direction link to each other with last lock subassembly 1, lower lock subassembly 3 through first connecting rod 4 and second connecting rod 5 respectively to reach the purpose that the lock subassembly 1 was opened, was closed to lower lock subassembly 3 in the control.
As shown in fig. 2, the middle door lock assembly 2 includes a handle 24, a door handle 28, a latch bolt type door lock 29, a lock case 21, and a handle fork 23, a cylinder fork 26, a linkage plate 22, a shift lever 27, a latch bolt 25, a spring 6 and a torsion spring 7 which are disposed in the lock case 21, wherein the handle 24 is installed at one side of the cab, and the door handle and the latch bolt type door lock 29 are installed at one side of the vehicle compartment.
As shown in fig. 2 and 3, the linkage plate 22 is horizontally slidably arranged in the lock case 21, the handle fork 23 is rotatably arranged in the lock case 21, the handle fork 23 has a first pushing portion 231 capable of pushing the linkage plate 22 to move in the rotating process, and the handle 24 is linked with the handle fork 23 through a first transmission shaft; the lock tongue 25 is connected with one side of the linkage plate 22 in the horizontal direction to realize linkage, and the first connecting rod 4 and the second connecting rod 5 are respectively positioned at two sides of the linkage plate 22 in the vertical direction; the two sides of the linkage plate 22 corresponding to the vertical direction are provided with guide grooves 221 which are obliquely arranged, and the guide grooves 221 at the two sides are arranged in a splayed structure; the two opposite side walls of the lock case 21 are correspondingly provided with first sliding openings 211 which are vertically arranged and matched with the guide grooves 221, the end parts of the first connecting rod 4 and the second connecting rod 5 are respectively provided with a first pin shaft 41, the end parts of the first pin shafts 41 penetrate through the guide grooves 221 and then are respectively placed into the first sliding openings 211, so that opening can be conveniently realized through a handle 24 on one side of the cab, in the process that the handle 24 drives a handle shifting fork 23 to rotate and pushes a linkage plate 22 to move, a lock tongue 25 horizontally moves along with the linkage plate 22 and retracts into the lock case 21, the first connecting rod 4 and the second connecting rod 5 on two vertical sides retract into the lock case 21 along the first sliding openings 211 under the action of the guide grooves 221, and opening of the three-point locking device is realized.
As shown in fig. 3, the lock case 21 is formed by combining a front case 216 and a rear case 217, a guide plate 212 is vertically disposed on the rear case 217, the guide plate 212 is provided with a guide hole, the latch 25 includes a rod portion 251, the rod portion 251 passes through the guide hole of the guide plate 212 and is connected to the linkage plate 22, the spring 6 is sleeved on the rod portion 251, and both ends of the spring 6 are respectively abutted against the latch 25 and the guide plate 212, so that when the locking device is opened by the handle 24, the spring 6 is compressed, and when the handle 24 is released, the spring 6 can push the linkage plate 22 to be reset, so that the latch 25, the first link 4 and the second link 5 extend out of the lock case 21 again.
Preferably, the rear housing 217 is provided with a sleeve post 215 corresponding to the rear side of the linkage plate 22, the torsion spring 7 is sleeved on the sleeve post 215, and two ends of the torsion spring 7 are respectively abutted against the rear end portions of the lock housing 21 and the linkage plate 22, so that the resetting effects of the linkage plate 22, the locking mechanism, the first connecting rod 4 and the second connecting rod 5 are further improved.
As shown in fig. 3, in order to ensure the horizontal sliding motion of the linkage plate 22 in the lock case 21, the front case 216 and the rear case 217 are correspondingly provided with second sliding openings 213 which are horizontally and transversely arranged, the end of the rod portion 251 of the lock tongue 25 is provided with a second pin shaft 252, and the second pin shafts 252 penetrate through the plate surface of the linkage plate 22 and are respectively placed into the second sliding openings 213 on the two sides, so that the linkage of the lock tongue 25 and the linkage plate 22 is formed, and the horizontal motion of the lock tongue 25 and the linkage plate 22 is limited; further, a horizontally and horizontally arranged abutting plate 214 is arranged on the rear shell 217, the linkage plate 22 is provided with a horizontally and horizontally arranged abutting edge 222 abutting against the abutting plate 214, and the horizontal movement of the linkage plate 22 is limited through the abutting cooperation of the abutting edge 222 and the abutting plate 214.
As shown in fig. 2 and 3, the lock cylinder fork 26 is rotatably disposed in the lock case 21 and has a second pushing portion 261 for pushing the linkage plate 22 to move during rotation, and the door handle 28 is connected to the lock cylinder fork 26 through a second rotating shaft for linkage; one end of the shift lever 27 is sleeved on the lock cylinder shifting fork 26 to realize linkage with the lock cylinder shifting fork 26, and the other end is connected with the bolt-rotating type door lock 29, so that when the cab door is opened at the side of the carriage, the cab door can be opened only by opening the bolt-rotating type door lock 29 through a key and simultaneously rotating the door handle 28; preferably, the handle fork 23 is located at the front side of the lock cylinder fork 26, and the linkage plate 22 is provided with a yielding portion 223 corresponding to the second pushing portion 261 of the lock cylinder fork 26, so that the yielding portion 223 can prevent the second pushing portion 261 of the lock cylinder fork 26 from interfering when the handle 24 is rotated to open the locking device, and the normal operation of the locking device is ensured.
Compared with the prior art, the utility model discloses simple structure, convenient operation, middle lock subassembly spare part is few, connects reliably between each part, and transmission stability is high, rotates through handle shift fork or lock core shift fork and can promote linkage plate motion and linkage spring bolt and connecting rod shrink, can realize the stable of linkage plate, closure and connecting rod simultaneously and reset under the effect of spring and torsional spring to realize that locking device's stability is opened or is closed.
The above disclosure is only for the embodiment of the present invention, however, the present invention is not limited thereto, and any changes that can be considered by those skilled in the art should fall within the protection scope of the present invention.
Claims (7)
1. A three-point locking device for a cab door of a railway vehicle comprises an upper door lock assembly, a middle door lock assembly and a lower door lock assembly which are vertically arranged, wherein two sides of the middle door lock assembly in the vertical direction are respectively connected with the upper door lock assembly and the lower door lock assembly through two connecting rods;
the middle door lock assembly is characterized by comprising a lock shell, a handle shifting fork, a linkage plate, a lock tongue and a handle, wherein the linkage plate is horizontally arranged in the lock shell in a sliding manner, the handle shifting fork is rotatably arranged in the lock shell and is provided with a first pushing part capable of pushing the linkage plate to move in a rotating process;
the handle is in linkage connection with the handle shifting fork;
the lock bolt is connected with one side of the linkage plate in the horizontal direction to form linkage, the two connecting rods are respectively positioned on two sides of the linkage plate in the vertical direction, guide grooves which are obliquely arranged are formed in two sides of the linkage plate corresponding to the vertical direction, the guide grooves in the two sides are arranged in a splayed structure, first hinge pins are arranged at the end parts of the two connecting rods, vertically arranged first sliding openings are correspondingly formed in two opposite side walls of the lock shell, and the end parts of the first hinge pins are respectively placed into the first sliding openings in the two sides after penetrating through the guide grooves;
when the handle is rotated to drive the handle shifting fork to rotate, the handle shifting fork can push the linkage plate to move horizontally, so that the lock tongue and the connecting rods on the two sides are contracted.
2. The three-point locking device for the cab door of the rail vehicle as claimed in claim 1, wherein the latch bolt comprises a rod portion, a vertically arranged guide plate is formed in the lock housing, a guide hole is formed in the guide plate, the rod portion of the latch bolt penetrates through the guide hole and then is connected with the linkage plate, a spring is sleeved on the rod portion, and two ends of the spring are respectively abutted against the latch bolt and the guide plate.
3. The three-point locking device for the cab door of the rail vehicle as claimed in claim 1 or 2, wherein a sleeve connecting column is arranged in the lock case, a torsion spring is sleeved on the sleeve connecting column, and two ends of the torsion spring are respectively connected with the linkage plate and the lock case.
4. The three-point locking device for the cab door of the rail vehicle as claimed in claim 1, wherein two opposite side walls of the lock case are correspondingly provided with second sliding openings which are horizontally and transversely arranged and used for limiting the sliding of the linkage plate.
5. The three-point locking device for the cab door of the rail vehicle as claimed in claim 1 or 4, wherein a horizontally arranged abutment plate is formed in the lock housing, and the linkage plate has a horizontal abutment edge which abuts against the abutment plate.
6. The three-point locking device for the cab door of a railway vehicle as claimed in claim 1, further comprising a key cylinder fork, a door handle, a lever and a deadbolt door lock;
the lock cylinder shifting fork is rotatably arranged in the lock shell and is provided with a second pushing part which pushes the linkage plate to move in the rotating process;
the door handle is in linkage connection with the lock cylinder shifting fork;
one end of the shifting rod is sleeved on the lock cylinder shifting fork and linked with the lock cylinder shifting fork, and the other end of the shifting rod is connected with the rotating tongue type door lock.
7. The three-point locking device for the cab door of the rail vehicle as claimed in claim 6, wherein the handle fork is located at the front side of the lock cylinder fork, and the linkage plate is provided with a relief portion corresponding to the second pushing portion, the relief portion being capable of preventing the handle fork from touching the second pushing portion during the movement of pushing the linkage plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920881753.6U CN210217427U (en) | 2019-06-12 | 2019-06-12 | Three-point locking device of railway vehicle cab door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920881753.6U CN210217427U (en) | 2019-06-12 | 2019-06-12 | Three-point locking device of railway vehicle cab door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210217427U true CN210217427U (en) | 2020-03-31 |
Family
ID=69931494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920881753.6U Active CN210217427U (en) | 2019-06-12 | 2019-06-12 | Three-point locking device of railway vehicle cab door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210217427U (en) |
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2019
- 2019-06-12 CN CN201920881753.6U patent/CN210217427U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 315423 No.1, Shengjiu Ring Road, Dayin Town, Yuyao City, Ningbo City, Zhejiang Province Patentee after: Ningbo Shengjiu Technology Co.,Ltd. Address before: 315423 No.1, Shengjiu Ring Road, industrial park, Dayin Town, Yuyao City, Ningbo City, Zhejiang Province Patentee before: Ningbo Shengjiu Cabinet Lock Co.,Ltd. |
|
| CP03 | Change of name, title or address |