Door lock of access door for rail transit

Abstract

The utility model discloses an access door lock for rail transit, which comprises a lock body, a cab side panel and a passenger room side panel, the lock body comprises a lock box with a groove, a lock body panel is arranged on the right side end face of the lock box, an inclined spring bolt and a dead spring bolt are arranged in the groove, an inclined spring bolt shifting shaft sleeved with an inclined spring bolt shifting fork is in contact connection with the lower portion of the inclined spring bolt, and the dead spring bolt shifting fork is sleeved with a dead spring bolt shifting fork. The other end of the inclined spring bolt shifting shaft is connected with the push rod, the other end of the push rod is in contact connection with the dead spring bolt shifting shaft, the other end of the dead spring bolt shifting shaft is in contact connection with the dead spring bolt, the cab side panel and the passenger room side panel are arranged on the two sides of the lock body, and the cab side panel, the passenger room side panel and the lock body are fixed together through bolts. A handle and a knob are arranged on the cab side panel, and a key hole is formed in the passenger room side panel. The door lock is compact in overall structure, reasonable in structural design and capable of being well matched with a door lock of an access door in the traffic rail industry.

Description

Technical Field

[0001] The utility model relates to a door lock, in particular to a channel door lock for rail transit. Background Art

[0002] In vehicles such as subways and light rails, the driver's cab generally needs to be separated from the passenger compartment side by an end wall, and a channel door will be provided on the end wall to facilitate the driver's entry and exit.

[0003] Due to the requirements of rail transit that passengers are not allowed to enter the driver's cab, there should be no handle on the passenger compartment side. To enter from the passenger compartment side, the driver's common square key is used to open it. In addition, there are also clear requirements for the performance, reliability, appearance, etc. of the door lock. The utility model is a channel door lock that meets the above requirements. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is: in the prior art, how to ensure that only the driver can enter and exit the driver's cab and the passenger compartment through the door lock on the channel door between the driver's cab and the passenger compartment, and passengers are not allowed to enter the driver's cab.

[0005] To solve the above technical problem, a technical solution provided by the utility model is:

[0006] A channel door lock for rail transit, comprising a lock body, a driver's cab side panel and a passenger compartment side panel. The lock body includes a lock box with a groove. A lock body panel is provided on the right end face of the lock box. Two lock tongue through holes communicating with the groove are provided on the lock body panel, namely an upper inclined lock tongue through hole and a lower fixed lock tongue through hole. Two through holes penetrating the groove vertically are provided in the groove, namely an upper front inclined shift shaft hole and a lower front fixed shift shaft hole. An inclined lock tongue is provided in the inclined lock tongue through hole, and the other end of the inclined lock tongue extends into the groove. An L-shaped groove is provided on the upper end face of the inclined lock tongue extending into the groove, and an opening groove with a downward opening is provided on the lower end face. A compression spring is provided in the L-shaped groove. One end of the compression spring is connected to the right end face of the L-shaped groove, and the other end is connected to the inner side end face of the groove corresponding to the compression spring. An inclined lock tongue shift shaft is provided in the front inclined shift shaft hole. The single shift shaft on the inclined lock tongue shift shaft extends into the opening groove and is located between the inner left end face of the opening groove and the first upright post. An inclined lock tongue shift fork is provided on the inclined lock tongue shift shaft. The perforated fork on the inclined lock tongue shift fork is connected to a push rod through a push rod pin using the pin hole on it. The perforated fork and the push rod can rotate relative to each other around the push rod pin. The non-perforated fork extends into the opening groove and is arranged above the single shift shaft. The other end of the push rod is in contact connection with the long shift shaft on the fixed lock tongue shift shaft provided in the front fixed shift shaft hole. The short shift shaft on the fixed lock tongue shift shaft is connected to one end of the fixed lock tongue provided inside the groove. The other end of the fixed lock tongue is arranged in the fixed lock tongue through hole. A first guiding groove is provided on the push rod. A first guiding shaft fixed to the bottom of the groove is provided in the first guiding groove. A swing rod is also sleeved on the first guiding shaft at a position below the push rod on the first guiding shaft. A through hole is provided on the swing rod, and the swing rod is sleeved on the first guiding shaft using the through hole. The swing rod can rotate around the first guiding shaft. A second guiding shaft is provided on the end face of the other end of the swing rod away from the bottom face of the groove. An upper limiting hole with an upward opening for placing the second guiding shaft is provided in the upper part of the fixed lock tongue located in the groove, and a lower limiting hole with a downward opening for placing the short shift shaft is provided in the lower part. A second guiding groove is provided on the fixed lock tongue located in the groove. The push rod is located below the fixed lock tongue. The upper part of the swing rod is in contact connection with one end of a torsion spring. The torsion spring is fixed in the groove through a second upright post fixed to the bottom of the groove. The other end of the torsion spring is in contact connection with the left side end face inside the groove. A third upright post for limiting is provided below the fixed lock tongue located in the groove; A handle with a handle square shaft and a knob with a knob square shaft are provided on the driver's cab side panel. The other end of the handle square shaft passes through the driver's cab side panel and extends into the first square shaft hole on the inclined lock tongue shift shaft. The other end of the knob square shaft passes through the driver's cab side panel and extends into the second square shaft hole on the fixed lock tongue shift shaft;A keyhole penetrating the passenger compartment side panel is provided at a position corresponding to the knob square shaft on the passenger compartment side panel. A cover plate is provided on the lock body. A third guide shaft is provided on the inner side surface of the cover plate corresponding to the second guide groove. When the cover plate covers the lock body, the second guide shaft extends into the second guide groove. The lock body is located between the driver's cab side panel and the passenger compartment side panel, and the driver's cab side panel and the passenger compartment side panel are bolted together.

[0007] The distance from the inner end surface of the groove connected to the compression spring to the inner end surface of the lock body panel is less than the length distance of the ┘-shaped groove, and together with the first upright post, it limits the position of the inclined lock tongue.

[0008] The first upright post is provided on the base of the groove and is located in the opening groove when the inclined lock tongue is placed in the groove. At this time, the upper inner end surface of the opening groove is in contact connection with the first upright post, and the left inner end surface of the opening groove and the first upright post limit the positions of the single shift shaft and the fork without a hole.

[0009] The open ends of the upper limit hole and the lower limit hole are both arc ends, which facilitates the second guide shaft and the short shift shaft to slide in and out when the dead lock tongue moves.

[0010] The center point of the first square shaft hole and the center point of the front inclined shift shaft hole are on the same straight line. A fork through hole is provided on the inclined lock tongue fork. The inclined lock tongue fork is sleeved on the outer circle of the inclined lock tongue shift shaft through the fork through hole. The size of the first square shaft hole matches the size of the handle square shaft.

[0011] The center point of the second square shaft hole and the center point of the front dead shift shaft hole are on the same straight line. The size of the second square shaft hole matches the size of the knob square shaft. Corresponding rear inclined shift shaft holes and rear dead shift shaft holes are also provided on the cover plate at positions corresponding to the front inclined shift shaft hole and the front dead shift shaft hole in the groove.

[0012] Screw holes penetrating the driver's cab side panel are provided on both the upper side and the lower side of the driver's cab side panel. Connecting columns with internal screw holes are respectively provided on the passenger compartment side panel at positions corresponding to the screw holes on the driver's cab side panel. The distance between the two screw holes is greater than the vertical distance of the lock body. Align the connecting columns with the screw holes. At this time, the handle square shaft on the handle passes through the rear inclined shift shaft hole and then enters the first square hole, and the handle square shaft fits with the first square hole; the knob square shaft on the knob passes through the rear dead shift shaft hole and then enters the second square hole, and then enters the keyhole through the corresponding front dead shift shaft hole. Use bolts to screw into the internal screw holes on the connecting columns through the screw holes, and then combine the driver's cab side panel, the lock body and the passenger compartment side panel together.

[0013] When the door lock is used to open or close the door, the following operation can be performed: S1: fix the door lock on the passage door with screws, and a lock baffle with an oblique lock bolt opening and a dead lock bolt opening is arranged opposite the passage door, and the oblique lock bolt opening and the dead lock bolt opening correspond to the oblique lock bolt and the dead lock bolt respectively;

[0014] S2: When locking the door, whether in the driver's room or the passenger room, the passage door is gently pushed or pulled, and after the oblique lock tongue touches the lock baffle opposite to the passage door, it is pushed into the lock box, thereby compressing the compression spring and pushing the compression spring into the lock box. After the oblique lock tongue moves to the oblique lock tongue opening position, the oblique lock tongue is pushed out of the lock box by the compression spring, and the oblique lock tongue enters the oblique lock tongue opening to lock the door;

[0015] S3: When the door is locked normally and the driver is in the cab, the knob is rotated 90° clockwise. When the knob is rotated 90°, the knob drives the square shaft of the knob to rotate 90° clockwise, and then drives the deadbolt bolt shaft to rotate 90° clockwise. At this time, the long shaft is separated from the push rod, and the short shaft reaches the other side from one side of the lower limit hole, and pushes the side wall of the lower limit hole through the short shaft to push the deadbolt bolt out of the lock box and enter the deadbolt bolt opening on the lock baffle to lock the door.

[0016] If it is in the guest room, insert the square hole key into the square shaft of the knob, rotate the square hole key 90° counterclockwise, and when the square hole key rotates 90°, the square shaft of the knob is driven to rotate 90° counterclockwise, and then the deadbolt pull shaft is driven to rotate 90° counterclockwise. At this time, the short pull shaft rotates 90° counterclockwise, the long pull shaft separates from the push rod, and rotates 90° counterclockwise with the deadbolt pull shaft. After the short pull shaft reaches the other side of the lower limit hole, it pushes the side wall of the lower limit hole to push the deadbolt out of the lock box, and enters the deadbolt pull hole on the lock baffle to lock the door.

[0017] S4: Open the door in the driver's cab. If the door is locked, rotate the knob 90° counterclockwise. When the knob is rotated 90°, the knob drives the knob square shaft to rotate 90° counterclockwise, and then drives the deadbolt tongue shaft to rotate 90° counterclockwise. At this time, the long shaft and the push rod gradually approach each other, and the short shaft reaches the other side from one side of the lower limit hole, and pushes the side wall of the lower limit hole through the short shaft to push the deadbolt tongue into the lock box, thereby releasing the door from locking;

[0018] Then continue to rotate the knob counterclockwise. As the knob rotates, it drives the square shaft of the knob to continue rotating counterclockwise, which in turn drives the fixed lock tongue dial shaft to continue rotating counterclockwise. At this time, the short dial shaft slides out of the lower limit hole, and the long dial shaft pushes the push rod upward. Through the push rod pin, it drives the inclined lock tongue fork to rotate, and uses the non-perforated fork to push the inclined lock tongue into the lock box. At the same time, the inclined lock tongue compresses the compression spring. After the inclined lock tongue completely enters the lock box, pull the knob or handle, and the door will open; after releasing the knob, the compression spring rebounds, and the above-mentioned parts return to their original positions, and the lock body returns to its normal state;

[0019] Or press the handle downward and to the left. The inner square shaft of the handle drives the inclined lock tongue dial shaft to rotate counterclockwise, and at the same time drives the inclined lock tongue fork to rotate counterclockwise. Use the non-perforated fork to push the inclined lock tongue into the lock box. At the same time, the inclined lock tongue compresses the compression spring. After the inclined lock tongue completely enters the lock box, pull the handle, and the door will open; after releasing the handle, the compression spring rebounds, pushes the inclined lock tongue out of the lock box, and the handle returns to its original position, and the lock body returns to its normal state;

[0020] If the door is not locked against, rotate the knob counterclockwise. As the knob rotates, it drives the square shaft of the knob to rotate counterclockwise, which in turn drives the fixed lock tongue dial shaft to rotate counterclockwise. At this time, the short dial shaft slides out of the lower limit hole, and the long dial shaft pushes the push rod upward. Through the push rod pin, it drives the inclined lock tongue fork to rotate, and uses the non-perforated fork to push the inclined lock tongue into the lock box. At the same time, the inclined lock tongue compresses the compression spring. After the inclined lock tongue completely enters the lock box, pull the knob or handle, and the door will open; after releasing the knob, the compression spring rebounds, and the above-mentioned parts return to their original positions, and the lock body returns to its normal state;

[0021] Or press the handle downward and to the left. The inner square shaft of the handle drives the inclined lock tongue dial shaft to rotate counterclockwise, and at the same time drives the inclined lock tongue fork to rotate counterclockwise. Use the non-perforated fork to push the inclined lock tongue into the lock box. At the same time, the inclined lock tongue compresses the compression spring. After the inclined lock tongue completely enters the lock box, pull the handle, and the door will open; after releasing the handle, the compression spring rebounds, pushes the inclined lock tongue out of the lock box, and the handle returns to its original position, and the lock body returns to its normal state;

[0022] S5: Open the door in the passenger compartment:

[0023] If the door is locked against, insert the square hole key into the square shaft of the knob and rotate the square hole key clockwise by 90°. As the square hole key rotates 90°, it drives the square shaft of the knob to rotate clockwise by 90°, which in turn drives the fixed lock tongue dial shaft to rotate clockwise by 90°. At this time, the short dial shaft rotates clockwise by 90°, and after the long dial shaft rotates clockwise by 90°, it contacts the push rod. After the short dial shaft reaches the other side inside the lower limit hole, it pushes the fixed lock tongue into the lock box by pushing the side wall of the lower limit hole, releasing the anti-lock of the door;

[0024] Then continue to rotate the square-hole key clockwise, driving the knob square shaft to rotate clockwise, and at the same time driving the dead bolt dial shaft to rotate clockwise. At this time, the short dial shaft slides out of the lower limit hole, and the long dial shaft pushes the push rod upward. The push rod pin drives the inclined bolt fork to rotate, and the non-perforated fork is used to push the inclined bolt into the lock box. At the same time, the inclined bolt compresses the compression spring. After the inclined bolt completely enters the lock box, gently push the passage door, and the door will open. After pulling out the square-hole key, the compression spring rebounds, and the above-mentioned parts reset, and the lock body returns to its normal state;

[0025] If the door is not anti-locked, insert the square-hole key into the knob square shaft and rotate the square-hole key clockwise, driving the knob square shaft to rotate clockwise, and at the same time driving the dead bolt dial shaft to rotate clockwise. At this time, the short dial shaft slides out of the lower limit hole, and the long dial shaft pushes the push rod upward. The push rod pin drives the inclined bolt fork to rotate, and the non-perforated fork is used to push the inclined bolt into the lock box. At the same time, the inclined bolt compresses the compression spring. After the inclined bolt completely enters the lock box, gently push the passage door, and the door will open. After pulling out the square-hole key, the compression spring rebounds, and the above-mentioned parts reset, and the lock body returns to its normal state.

[0026] All components on the lock body are made of stainless steel, and all exposed surfaces are polished and brushed, with a beautiful appearance.

[0027] The beneficial effects of the present invention are as follows:

[0028] In the present invention, all components on the lock body are made of stainless steel, with high strength and not easily damaged. Moreover, the overall structure is compact without redundant design. The cooperation between components can smoothly open, close, and anti-lock the door lock. By setting a handle and a knob on the driver's cab side panel, it is convenient for the driver to enter the passenger compartment from the driver's cab. By setting a square shaft keyhole on the passenger compartment side panel, passengers cannot enter the driver's cab without a key. The overall structure is reasonably designed, purely mechanical, without wiring, and can be well adapted to the passage door lock for the transportation track industry.

[0029] In order to make the above and other purposes, features, and advantages of the present invention more obvious and understandable, the following specific preferred embodiments are given, and detailed descriptions are made in conjunction with the accompanying drawings as follows. Description of the Drawings

[0030] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only partial schematic diagrams of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0031] Figure 1 It is a schematic diagram of the external shape of the door lock in the present invention;

[0032] Figure 2 is Figure 1 the left view of , that is, the schematic diagram of the external shape of the door lock seen from the cab side;

[0033] Figure 3 is Figure 1 the right view of , that is, the schematic diagram of the external shape of the door lock seen from the passenger compartment side;

[0034] Figure 4 is the internal structure diagram of the lock body and also the normal cross-section diagram of the lock body;

[0035] Figure 5 is the overall exploded view of the lock body;

[0036] Figure 6 is the schematic diagram of the structure of the cab side panel;

[0037] Figure 7 is Figure 6 the left view of ;

[0038] Figure 8 is Figure 6 the right view of ;

[0039] Figure 9 is the schematic diagram of the structure of the passenger compartment side panel;

[0040] Figure 10 is Figure 9 the left view of ;

[0041] Figure 11 is Figure 9 the right view of .

[0042] In the figure, 1 - driver's cab side panel, 2 - passenger compartment side panel, 3 - groove, 4 - lock box, 5 - lock body panel, 6 - through hole for inclined locking tongue, 7 - through hole for stationary locking tongue, 8 - front inclined shifting shaft hole, 9 - front stationary shifting shaft hole, 10 - inclined locking tongue, 11 - ┘-shaped groove, 12 - opening groove, 13 - compression spring, 14 - inclined locking tongue shifting shaft, 15 - single shifting shaft, 16 - first upright column, 17 - inclined locking tongue shifting fork, 18 - shifting fork with hole, 19 - pin shaft hole, 20 - push rod pin, 21 - push rod, 22 - shifting fork without hole, 23 - stationary locking tongue shifting shaft, 24 - long shifting shaft, 25 - short shifting shaft, 26 - stationary locking tongue, 27 - first guiding groove, 28 - first guiding shaft, 29 - swing rod, 30 - through hole, 31 - second guiding shaft, 32 - upper limit hole, 33 - lower limit hole, 34 - second guiding groove, 35 - torsion spring, 36 - second upright column, 37 - third upright column, 38 - handle square shaft, 39 - handle, 40 - knob square shaft, 41 - knob, 42 - first square shaft hole, 43 - second square shaft hole, 44 - key hole, 45 - cover plate, 46 - screw hole, 47 - connecting column, 48 - locking door indication point, 49 - opening door indication point, 50 - calibration point, 51 - screw, 52 - rear inclined shifting shaft hole, 53 - rear stationary shifting shaft hole, 54 - third guiding shaft, 55 - shifting fork through hole. Detailed implementation manners

[0043] Embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present invention. It should be understood that the drawings and embodiments of the present invention are only for illustrative purposes and are not used to limit the protection scope of the present invention.

[0044] In the present invention, unless otherwise clearly defined and limited, terms such as "installation", "setting", "connection", "fixation", "rotation connection", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] The names of the messages or information exchanged between multiple devices in the embodiments of the present invention are only for illustrative purposes and are not used to limit the scope of these messages or information.

[0046] Embodiment: A channel door lock for rail transit, comprising a lock body, a driver's cab side panel 1 and a passenger compartment side panel 2. The lock body includes a lock box 4 with a groove 3. A lock body panel 5 is provided on the right end face of the lock box 4. Two lock tongue through holes communicating with the groove 3 are provided on the lock body panel 5, namely an upper inclined lock tongue through hole 6 and a lower dead lock tongue through hole 7. Two through holes penetrating the groove 3 up and down are provided in the groove 3, namely an upper front inclined shift shaft hole 8 and a lower front dead shift shaft hole 9.

[0047] An inclined lock tongue 10 is provided in the inclined lock tongue through hole 6. The other end of the inclined lock tongue 10 extends into the groove 3. An ┘-shaped groove 11 is provided on the upper end face of the inclined lock tongue 10 extending into the groove 3, and an opening groove 12 with an opening downward is provided on the lower end face. A compression spring 13 is provided in the ┘-shaped groove 11. One end of the compression spring 13 is connected to the right end face of the ┘-shaped groove 11, and the other end is connected to the inner side end face of the groove 3 corresponding to the compression spring 13.

[0048] An inclined lock tongue shift shaft 14 is provided in the front inclined shift shaft hole 8. The single shift shaft 15 on the inclined lock tongue shift shaft 14 extends into the opening groove 12 and is located between the inner side left end face of the opening groove 12 and the first upright post 16.

[0049] The distance from the inner side end face of the groove 3 connected to the compression spring 13 to the inner side end face of the lock body panel 5 is less than the length distance of the ┘-shaped groove 11, and together with the first upright post 16, limits the position of the inclined lock tongue 10.

[0050] An inclined lock tongue shift fork 17 is provided on the inclined lock tongue shift shaft 14. The perforated fork 18 on the inclined lock tongue shift fork 17 is connected to the push rod 21 through a push rod pin 20 using the pin hole 19 thereon. The perforated fork 18 and the push rod 21 can rotate relative to each other around the push rod pin 20. The non-perforated fork 22 extends into the opening groove 12 and is arranged above the single shift shaft 15. The other end of the push rod 21 is in contact connection with the long shift shaft 24 on a dead lock tongue shift shaft 23 provided in the front dead shift shaft hole 9.

[0051] The first upright post 16 is provided on the base of the groove 3 and is located in the opening groove 12 when the inclined lock tongue 10 is placed in the groove 3. At this time, the inner upper end face of the opening groove 12 is in contact connection with the first upright post 16, and the inner side left end face of the opening groove 12 and the first upright post 16 limit the positions of the single shift shaft 15 and the non-perforated fork 22.

[0052] The short shift shaft 25 on the dead lock tongue shift shaft 23 is connected to one end of a dead lock tongue 26 provided inside the groove 3. The other end of the dead lock tongue 26 is arranged in the dead lock tongue through hole 7. A first guide groove 27 is provided on the push rod 21, and a first guide shaft 28 fixed to the bottom of the groove 3 is provided in the first guide groove 27.

[0053] A swing rod 29 is also sleeved on the first guide shaft 28 at a position below the push rod 21. A through hole 30 is provided on the swing rod 29, and the swing rod 29 is sleeved on the first guide shaft 28 by using the through hole 30. The swing rod 29 can rotate around the first guide shaft 28. A second guide shaft 31 is provided on the end face of the other end of the swing rod 29 away from the bottom surface of the groove 3. An upper limit hole 32 with an upward opening for placing the second guide shaft 31 is provided on the upper part of the stationary locking tongue 26 located in the groove 3, and a lower limit hole 33 with a downward opening for placing the short shifting shaft 25 is provided on the lower part. The opening ends of the upper limit hole 32 and the lower limit hole 33 are both arc ends, which facilitates the second guide shaft 31 and the short shifting shaft 25 to slide in and out when the stationary locking tongue 26 moves.

[0054] A second guide groove 34 is provided on the stationary locking tongue 26 located in the groove 3. The push rod 21 is located below the stationary locking tongue 26. The upper part of the swing rod 29 is in contact connection with one end of a torsion spring 35. The torsion spring 35 is fixed in the groove 3 by a second upright post 36 fixed to the bottom of the groove 3. The other end of the torsion spring 35 is in contact connection with the left end face in the groove 3. A third upright post 37 for limiting the stationary locking tongue 26 is provided below the stationary locking tongue 26 located in the groove 3.

[0055] A handle 39 with a handle square shaft 38 and a knob 41 with a knob square shaft 40 are provided on the driver's cab side panel 1.

[0056] The center point of the first square shaft hole 42 and the center point of the front inclined locking tongue shifting shaft hole 8 are on the same straight line. A fork through hole 55 is provided on the inclined locking tongue fork 17. The inclined locking tongue fork 17 is sleeved on the outer circle of the inclined locking tongue shifting shaft 14 through the fork through hole 55. The size of the first square shaft hole 42 matches the size of the handle square shaft 38.

[0057] A key hole 44 penetrating the passenger compartment side panel 2 is provided on the passenger compartment side panel 2 corresponding to the knob square shaft 40. A cover plate 45 is provided on the lock body. A third guide shaft 54 corresponding to the second guide groove 34 is provided on the inner side surface of the cover plate 45. When the cover plate 45 covers the lock body, the second guide shaft 31 extends into the second guide groove 34. The lock body is located between the driver's cab side panel 1 and the passenger compartment side panel 2. The driver's cab side panel 1 and the passenger compartment side panel 2 are connected together by bolts.

[0058] Rear inclined locking tongue shifting shaft holes 52 and rear stationary locking tongue shifting shaft holes 53 that match are also provided on the cover plate 45 corresponding to the front inclined locking tongue shifting shaft hole 8 and the front stationary locking tongue shifting shaft hole 9 in the groove 3.

[0059] The center point of the second square shaft hole 43 and the center point of the front stationary locking tongue shifting shaft hole 9 are on the same straight line. The size of the second square shaft hole 43 matches the size of the knob square shaft 40.

[0060] On both the upper and lower sides of the cab side panel 1, there are screw holes 46 penetrating through the cab side panel 1. At positions corresponding to the screw holes 46 on the cab side panel 1 on the passenger compartment side panel 2, there are connecting columns 47 with internal screw holes 46 respectively. The distance between the two screw holes 46 is greater than the vertical distance of the lock body. Align the connecting column 47 with the screw hole 46. At this time, the handle square shaft 38 on the handle 39 passes through the rear inclined shift shaft hole 52 and then enters the first square hole, and the handle square shaft 38 fits with the first square hole; the knob square shaft 40 on the knob 41 passes through the rear fixed shift shaft hole 53 and then enters the second square hole, and then enters the key hole 44 through the corresponding front fixed shift shaft hole 9. Use a bolt to screw into the internal screw hole 46 on the connecting column 47 through the screw hole 46, and then combine the cab side panel 1, the lock body, and the passenger compartment side panel 2 together.

[0061] On the passenger compartment side panel 2, at a position directly above the key hole 44, there is a door-locking indication point 48, and on the right there is a door-opening indication point 49. On the knob square shaft 40 in the key hole 44, there is a calibration point 50. When the calibration point 50 corresponds to the door-locking indication point 48, it means that the access door is in the closed state at this time. When the calibration point 50 corresponds to the door-opening indication point 49, it means that the access door is in the open state at this time.

[0062] When in use, first fix the door lock on the access door with screws 51. Opposite the access door, there is a lock baffle with an opening for the inclined locking tongue 10 and an opening for the fixed locking tongue 26. The opening for the inclined locking tongue 10 and the opening for the fixed locking tongue 26 correspond to the inclined locking tongue 10 and the fixed locking tongue 26 respectively.

[0063] When locking the door, whether in the cab or in the passenger compartment, gently push or pull the access door. After the inclined locking tongue 10 touches the lock baffle opposite the access door, it is pushed into the lock box 4, thereby compressing the compression spring 13 and pushing the compression spring 13 into the lock box 4. After the inclined locking tongue 10 moves to the position of the opening for the inclined locking tongue 10, the inclined locking tongue 10 pops out of the lock box 4 under the push of the compression spring 13, and the inclined locking tongue 10 enters the opening for the inclined locking tongue 10 to lock the door.

[0064] When anti-locking the door under the condition that the door has been normally locked, if in the cab, rotate the knob clockwise by 90°. While the knob 41 rotates by 90°, the knob 41 drives the knob square shaft 40 to rotate clockwise by 90°, thereby driving the fixed locking tongue shift shaft 23 to rotate clockwise by 90°. At this time, the long shift shaft 24 separates from the push rod 21, and the short shift shaft 25 reaches the other side from one side in the lower limit hole 33, and pushes the side wall of the lower limit hole 33 through the short shift shaft 25 to push the fixed locking tongue 26 out of the lock box 4 and into the opening for the fixed locking tongue 26 on the lock baffle to anti-lock the door.

[0065] If it is located in the passenger compartment, insert the square-hole key into the square shaft 40 of the knob, and rotate the square-hole key counterclockwise by 90°. While the square-hole key rotates 90°, it drives the square shaft 40 of the knob to rotate counterclockwise by 90°, and further drives the dead-lock tongue dial shaft 23 to rotate counterclockwise by 90°. At this time, the short dial shaft 25 rotates counterclockwise by 90°. The long dial shaft 24 separates from the push rod 21 and rotates counterclockwise by 90° along with the dead-lock tongue dial shaft 23. After the short dial shaft 25 reaches the other side inside the lower limit hole 33, it pushes the side wall of the lower limit hole 33 to push the dead-lock tongue 26 out of the lock box 4 and into the opening of the dead-lock tongue 26 on the lock baffle, locking the door.

[0066] Open the door in the driver's cab. If the door is already locked, rotate the knob 41 counterclockwise by 90°. While the knob 41 rotates 90°, the knob 41 drives the square shaft 40 of the knob to rotate counterclockwise by 90°, and further drives the dead-lock tongue dial shaft 23 to rotate counterclockwise by 90°. At this time, the long dial shaft 24 gradually approaches the push rod 21. The short dial shaft 25 moves from one side inside the lower limit hole 33 to the other side, and pushes the side wall of the lower limit hole 33 through the short dial shaft 25 to push the dead-lock tongue 26 into the lock box 4, unlocking the door.

[0067] Then continue to rotate the knob 41 counterclockwise. While the knob 41 rotates, it drives the square shaft 40 of the knob to continue rotating counterclockwise, and further drives the dead-lock tongue dial shaft 23 to continue rotating counterclockwise. At this time, the short dial shaft 25 slides out of the lower limit hole 33. The long dial shaft 24 pushes the push rod 21 upward, drives the inclined-lock tongue fork 17 to rotate through the push rod pin 20, and uses the non-hole fork 22 to push the inclined-lock tongue 10 into the lock box 4. At the same time, the inclined-lock tongue 10 compresses the compression spring 13. After the inclined-lock tongue 10 completely enters the lock box 4, pull the knob 41 or the handle 39, and the door will open; after releasing the knob 41, the compression spring 13 rebounds, and the above-mentioned parts return to their original positions, and the lock body returns to its normal state.

[0068] Or press the handle 39 downward to the left. The inner square shaft of the handle 39 drives the inclined-lock tongue dial shaft 14 to rotate counterclockwise, and at the same time drives the inclined-lock tongue fork 17 to rotate counterclockwise. Use the non-hole fork 22 to push the inclined-lock tongue 10 into the lock box 4. At the same time, the inclined-lock tongue 10 compresses the compression spring 13. After the inclined-lock tongue 10 completely enters the lock box 4, pull the handle 39, and the door will open; after releasing the handle 39, the compression spring 13 rebounds, pushes the inclined-lock tongue 10 out of the lock box 4, the handle 39 returns to its original position, and the lock body returns to its normal state.

[0069] If the door is not locked in reverse, rotate the knob 41 counterclockwise. While the knob 41 rotates, it drives the knob square shaft 40 to rotate counterclockwise, and then drives the dead bolt dial shaft 23 to rotate counterclockwise. At this time, the short dial shaft 25 slides out of the lower limit hole 33, and the long dial shaft 24 pushes the push rod 21 upward. Through the push rod pin 20, it drives the inclined bolt fork 17 to rotate, and uses the non-perforated fork 22 to push the inclined bolt 10 into the lock box 4. At the same time, the inclined bolt 10 compresses the compression spring 13. After the inclined bolt 10 completely enters the lock box 4, pull the knob 41 or the handle 39, and the door will open; after releasing the knob 41, the compression spring 13 rebounds, and the above-mentioned parts reset, and the lock body returns to the normal state.

[0070] Or press the handle 39 downward and to the left. The inner square shaft of the handle 39 drives the inclined bolt dial shaft 14 to rotate counterclockwise, and at the same time drives the inclined bolt fork 17 to rotate counterclockwise. Use the non-perforated fork 22 to push the inclined bolt 10 into the lock box 4. At the same time, the inclined bolt 10 compresses the compression spring 13. After the inclined bolt 10 completely enters the lock box 4, pull the handle 39, and the door will open; after releasing the handle 39, the compression spring 13 rebounds, pushes the inclined bolt 10 out of the lock box 4, the handle 39 returns to its original position, and the lock body returns to the normal state.

[0071] Open the door in the passenger compartment: If the door is locked in reverse, insert the square hole key into the knob square shaft 40 and rotate the square hole key clockwise by 90°. While the square hole key rotates 90°, it drives the knob square shaft 40 to rotate clockwise by 90°, and then drives the dead bolt dial shaft 23 to rotate clockwise by 90°. At this time, the short dial shaft 25 rotates clockwise by 90°, and after the long dial shaft 24 rotates clockwise by 90° and contacts the push rod 21, the short dial shaft 25 reaches the other side inside the lower limit hole 33 and pushes the dead bolt 26 into the lock box 4 by pushing the side wall of the lower limit hole 33, releasing the reverse lock of the door.

[0072] Then continue to rotate the square hole key clockwise, driving the knob square shaft 40 to rotate clockwise, and at the same time driving the dead bolt dial shaft 23 to rotate clockwise. At this time, the short dial shaft 25 slides out of the lower limit hole 33, and the long dial shaft 24 pushes the push rod 21 upward. Through the push rod pin 20, it drives the inclined bolt fork 17 to rotate, and uses the non-perforated fork 22 to push the inclined bolt 10 into the lock box 4. At the same time, the inclined bolt 10 compresses the compression spring 13. After the inclined bolt 10 completely enters the lock box 4, gently push the access door, and the door will open; after pulling out the square hole key, the compression spring 13 rebounds, and the above-mentioned parts reset, and the lock body returns to the normal state.

[0073] If the door is not locked in reverse, insert the square-hole key into the square shaft 40 of the knob, and rotate the square-hole key clockwise to drive the square shaft 40 of the knob to rotate clockwise. At the same time, drive the fixed lock tongue dial shaft 23 to rotate clockwise. At this time, the short dial shaft 25 slides out of the lower limit hole 33, and the long dial shaft 24 pushes the push rod 21 upward. Drive the inclined lock tongue fork 17 to rotate through the push rod pin 20, and use the non-hole fork 22 to push the inclined lock tongue 10 to move into the lock box 4. At the same time, the inclined lock tongue 10 compresses the compression spring 13. After the inclined lock tongue 10 completely enters the lock box 4, gently push the access door, and the door will open. After pulling out the square-hole key, the compression spring 13 rebounds, and the above-mentioned parts are reset, and the lock body returns to its normal state.

[0074] Note that the above is only the preferred embodiment of the present invention and the technical principles applied. Those skilled in the art will understand that the present invention is not limited to the specific embodiments here. Various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments. Without departing from the concept of the present invention, more other equivalent embodiments can be included, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A channel door lock for rail transit, comprising a lock body, a driver's cab side panel and a passenger compartment side panel, characterized in that: The lock body includes a lock box with a groove. A lock body panel is provided on the right end face of the lock box. There are two lock tongue through holes on the lock body panel that communicate with the groove, namely the upper diagonal lock tongue through hole and the lower dead lock tongue through hole. There are two through holes in the groove that penetrate the groove vertically, namely the upper front diagonal shift shaft hole and the lower front dead shift shaft hole. A diagonal lock tongue is arranged in the diagonal lock tongue through hole, and the other end of the diagonal lock tongue extends into the groove. An L-shaped groove is provided on the upper end face of the diagonal lock tongue extending into the groove, and an open groove with an opening downward is provided on the lower end face. A compression spring is arranged in the L-shaped groove. One end of the compression spring is connected to the right end face of the L-shaped groove, and the other end is connected to the inner side face of the groove corresponding to the compression spring. A diagonal lock tongue shift shaft is arranged in the front diagonal shift shaft hole. The single shift shaft on the diagonal lock tongue shift shaft extends into the open groove and is located between the inner left end face of the open groove and the first upright post. A diagonal lock tongue shift fork is arranged on the diagonal lock tongue shift shaft. The perforated fork on the diagonal lock tongue shift fork is connected to the push rod through a push rod pin using the pin hole on it. The perforated fork and the push rod can rotate relative to each other around the push rod pin. The non-perforated fork extends into the open groove and is arranged above the single shift shaft. The other end of the push rod is in contact connection with the long shift shaft on the dead lock tongue shift shaft arranged in the front dead shift shaft hole. The short shift shaft on the dead lock tongue shift shaft is connected to one end of the dead lock tongue arranged inside the groove. The other end of the dead lock tongue is arranged in the dead lock tongue through hole. A first guide groove is arranged on the push rod. A first guide shaft fixed to the bottom of the groove is arranged in the first guide groove. A swing rod is also sleeved on the first guide shaft at a position below the push rod on the first guide shaft. A through hole is arranged on the swing rod, and the swing rod is sleeved on the first guide shaft using the through hole. The swing rod can rotate around the first guide shaft. A second guide shaft is arranged on the end face of the other end of the swing rod away from the bottom face of the groove. An upper limit hole with an upward opening for placing the second guide shaft is arranged on the upper part of the dead lock tongue located in the groove, and a lower limit hole with a downward opening for placing the short shift shaft is arranged on the lower part. A second guide groove is arranged on the dead lock tongue located in the groove. The push rod is located below the dead lock tongue. The upper part of the swing rod is in contact connection with one end of a torsion spring. The torsion spring is fixed in the groove through a second upright post fixed to the bottom of the groove. The other end of the torsion spring is in contact connection with the left side face inside the groove. A third upright post for limiting the dead lock tongue is arranged below the dead lock tongue located in the groove; on the driver's cab side panel, there is a handle with a handle square shaft and a knob with a knob square shaft. The other end of the handle square shaft passes through the driver's cab side panel and extends into the first square shaft hole on the diagonal lock tongue shift shaft. The other end of the knob square shaft passes through the driver's cab side panel and extends into the second square shaft hole on the dead lock tongue shift shaft;A keyhole penetrating the passenger compartment side panel is provided at a position corresponding to the knob square shaft on the passenger compartment side panel. A cover plate is provided on the lock body. A third guide shaft is provided on the inner side surface of the cover plate at a position corresponding to the second guide groove. When the cover plate covers the lock body, the second guide shaft extends into the second guide groove. The lock body is located between the driver's cab side panel and the passenger compartment side panel, and the driver's cab side panel and the passenger compartment side panel are connected together by bolts.; 2. The channel door lock for rail transit according to claim 1, characterized in that: The distance from the inner end face of the groove connected to the compression spring to the inner end face of the lock body panel is less than the length of the ┘-shaped groove, and together with the first upright post, limits the position of the diagonal locking tongue.

3. The channel door lock for rail transit according to claim 2, characterized in that: The first upright post is arranged on the base of the groove and is located in the opening groove when the diagonal locking tongue is placed in the groove. At this time, the upper inner end face of the opening groove is in contact connection with the first upright post, and the left inner end face of the opening groove and the first upright post limit the positions of the single shift shaft and the fork without hole.

4. The channel door lock for rail transit according to claim 3, characterized in that: The open ends of the upper limit hole and the lower limit hole are both arc ends, which facilitates the second guide shaft and the short shift shaft to slide in and out when the dead locking tongue moves.

5. The channel door lock for rail transit according to claim 4, characterized in that: The center point of the first square shaft hole and the center point of the front diagonal shift shaft hole are on the same straight line. A shift fork through hole is provided on the diagonal locking tongue fork. The diagonal locking tongue fork is sleeved on the outer circle of the diagonal locking tongue shift shaft through the shift fork through hole. The size of the first square shaft hole matches the size of the handle square shaft.

6. The passage door lock for rail transit according to claim 5, characterized in that: The center point of the second square shaft hole and the center point of the front dead shift shaft hole are on the same straight line. The size of the second square shaft hole matches the size of the knob square shaft. Corresponding rear diagonal shift shaft holes and rear dead shift shaft holes are also provided at the positions on the cover plate corresponding to the front diagonal shift shaft hole and the front dead shift shaft hole in the groove.

7. The channel door lock for rail transit according to claim 6, characterized in that: Screw holes penetrating the driver's cab side panel are provided on both the upper side and the lower side of the driver's cab side panel. Connecting columns with internal screw holes are respectively provided at the positions on the passenger compartment side panel corresponding to the screw holes on the driver's cab side panel. The distance between the two screw holes is greater than the vertical distance of the lock body. Align the connecting columns with the screw holes. At this time, the handle square shaft on the handle passes through the rear diagonal shift shaft hole and then enters the first square hole, and the handle square shaft fits with the first square hole; the knob square shaft on the knob passes through the rear dead shift shaft hole and then enters the second square hole, and then enters the key hole through the corresponding front dead shift shaft hole. Use bolts to screw into the internal screw holes on the connecting columns through the screw holes, and then combine the driver's cab side panel, the lock body and the passenger compartment side panel together.

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