Platform door rail side anti-pinch lock

Abstract

The utility model discloses a platform door rail side anti-pinch lock, which relates to the technical field of rail traffic platform doors, and comprises a sliding door, the sliding door comprises sliding door frames on two sides, lock holes are arranged on the sliding door frames, the sliding door further comprises a pressing assembly, and the pressing assembly comprises a bottom shell. The two ends of the bottom shell are connected with sliding door frames on the two sides of the sliding door through a plurality of fixing screws respectively, the bottom shell is connected with an unlocking assembly, the structure is simple, rigid connection is adopted, jamming is not prone to occurring, installation is convenient, the requirement for assembly precision is low, practicability is high, later maintenance and repair are convenient, the product cost is low, and the practicability is high. Furthermore, passengers and station service can unlock the sliding door through the body part during use, so that the personal safety is guaranteed, and the safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transit platform doors, in particular to a platform door track side anti-pinch lock. Background Art

[0002] Currently, the gaps between subway trains and platform doors have repeatedly caused passenger pinching accidents in China, posing a significant threat to passenger safety. While meeting regulatory requirements, current domestic subway designs minimize the gaps between train doors and sliding doors and employ a variety of safety measures to mitigate the risk of passenger pinching.

[0003] The utility model patent with the announcement number "CN212642376U" discloses a "platform sliding door lateral squeeze unlocking anti-pinch mechanism" including a conversion mechanism. This mechanism is used in conjunction with the lateral press touch plate in the patent application number "CN202222673987.6" to achieve mechanical linkage with the lock rod. The platform sliding door lateral squeeze unlocking anti-pinch mechanism includes a rotating arm, a connecting shaft and a bearing. The bearing moves in the guide groove at the end of the pressing plate. The mechanism needs to be installed in the inner cavity of the sliding door frame (currently, the lock rod assembly is inserted into the inner cavity of the door sill from top to bottom). Therefore, the connecting shaft and the bearing can only be assembled on the outside of the door frame after the rotating arm and the lock rod assembly are installed together. There are difficulties in fixing the connecting shaft to the rotating arm in the inner cavity of the door frame. In addition, the movement trajectory of the connecting shaft driven by the rotating arm is an arc, so the processing and assembly accuracy requirements are high. During the application process, jamming occurs due to assembly problems, causing the entire platform door lateral press unlocking device to fail, and the assembly process is too complicated. Therefore, the utility model proposes a platform door track side anti-pinch lock. Utility Model Content

[0004] In response to the above technical problems, the utility model discloses an anti-pinch lock on the platform door track side, including a sliding door, the sliding door including sliding door frames on both sides, the sliding door frames are provided with lock holes, and also include a pressing assembly, the pressing assembly includes a bottom shell, the two ends of the bottom shell are respectively connected to the sliding door frames on both sides of the sliding door by multiple fixing screws, and the bottom shell is connected to an unlocking assembly.

[0005] Furthermore, the pressing assembly includes two groups of symmetrically distributed spring parts, and a pressing touch plate is slidably connected to the bottom shell. Two groups of symmetrically distributed connecting grooves are provided on the pressing touch plate, and the connecting groove includes two symmetrically distributed slide grooves. One end of the pressing touch plate close to the unlocking assembly is combined with the bottom shell to form an anti-pinch lock. Through the above scheme, the pressing touch plate is pressed, and the slide groove on the pressing touch plate drives the spring part to move, and the movement of the spring part causes the pressing assembly to drive the unlocking assembly to move.

[0006] Furthermore, the spring part includes a base, which is fixedly installed in the bottom shell through multiple screw holes, and an ear plate is fixedly installed on the base, and a pressing rod is hinged on the ear plate, and the first end of the pressing rod is connected to the slide slot through the guide shoe shaft, and the connecting wing plate is fixedly installed on the pressing rod, and a U-shaped guide slot is provided at the second end of the pressing rod, and a return spring 2 is provided at the hinge point between the pressing rod and the ear plate, the first end of the return spring 2 is connected to the connecting wing plate, and the second end of the return spring 2 is connected to the base. Through the above scheme, the slide slot drives the pressing rod to move through the guide shoe shaft, and the pressing rod drives the return spring 2 to move through the connecting wing plate. When resetting, the pressing rod is reset by the elastic force of the return spring 2, and the pressing rod drives the press touch plate to reset through the guide shoe shaft. The structure is simple, the connection method is simple, and it is easy to install, operate and maintain.

[0007] Furthermore, the pressing assembly also includes a locking rod sleeve and a locking rod 2. The locking rod sleeve is slidably installed on the base, and a locking screw for fixing the locking rod 2 is provided above the locking rod sleeve. A locking rod sleeve cam is provided on the locking rod sleeve, and the first end of the locking rod 2 is connected to the unlocking assembly, and the locking rod sleeve is slidably connected to the U-shaped guide groove. Through the above scheme, the U-shaped guide groove drives the locking rod sleeve to slide on the base, and the locking rod sleeve cam drives the locking rod 2 to push the unlocking assembly, thereby further protecting personal safety.

[0008] Furthermore, the unlocking assembly includes a cam, a cam handle is fixedly mounted on the cam, and the cam handle is installed in the sliding door frame through the rotation of the cam shaft. The first end of the second locking rod passes through the lock hole and is in contact with the cam handle. Through the above scheme, the second locking rod pushes the cam handle, and the cam handle drives the cam to rotate around the cam shaft, making it more convenient to unlock the sliding door.

[0009] Furthermore, the unlocking assembly also includes a locking rod 1, which is connected to a cam, and a return spring 1 is sleeved on the locking rod 1. The first end of the return spring 1 is fixedly mounted on the locking rod 1, and the second end of the return spring 1 is fixedly mounted in the sliding door frame. Through the above scheme, the cam pushes the locking rod 1 to move upward, and the sliding door is unlocked through the locking rod 1. Then, after the shackle is completed, the cam is reset by the elastic force of the return spring 1.

[0010] The beneficial effects of the present invention compared with the prior art are:

[0011] 1. The utility model has an ingenious and simple structure, adopts a rigid connection, and its mechanical principle is parallelogram motion. It will not cause the problem of different displacements of the two ends of the horizontal touch panel after pressing due to processing or assembly deviation, and has higher reliability.

[0012] 2. The assembly scheme is simple. This utility model can be fixed to the sliding door frame with fixing screws. The sliding door has a reserved lock hole, which does not require high-precision processing and positioning, and the second lock rod passes through the lock hole and is in contact with the cam handle. This method avoids the need for precise positioning of the fixing screws and the reserved lock hole, and greatly reduces the requirements for processing and assembly accuracy; the second lock rod moves by pressing the U-shaped guide groove and the lock rod sleeve cam through the pressing rod. In this way, the mechanical parts are slightly deformed by force, which will not cause large operating displacement deviations at the end, nor will it cause the problem of insufficient vertical displacement of the push rod due to the accumulation of gaps in the transmission chain. In addition, it also avoids the problems of debugging and mechanical rectification during the assembly process.

[0013] 3. The interface between the utility model and the sliding door is simple. A cam is installed in the lock rod, and the lock hole is opened in the door frame of the sliding door. It is suitable for the structure of sliding doors of all different brands and manufacturers, providing favorable conditions for the transformation of new lines and old lines. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the installation state of the utility model.

[0015] Figure 2 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 3 This is a schematic diagram of the overall structure of the utility model from another angle.

[0017] Figure 4 This is a structural diagram of the utility model in use.

[0018] Figure numbers: 1-locking rod one; 1-1-reset spring one; 2-cam; 2-1-cam shaft; 2-2-cam handle; 3-sliding door frame; 3-1-locking hole; 4-locking rod two; 5-anti-pinch lock; 5-1-bottom shell; 5-2-press touch plate; 5-3-slide groove; 6-base; 6-1-ear plate; 6-2-screw hole; 7-locking rod sleeve; 7-1-locking screw; 7-2-locking rod sleeve cam; 8-pressing rod; 8-1-guide shoe shaft; 8-2-U-shaped guide groove; 8-3-connecting wing plate; 9-reset spring two; 10-fixing screw. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Example: Figure 1-Figure 4As shown, a platform door track side anti-pinch lock includes a sliding door, the sliding door includes sliding door frames 3 on both sides, the sliding door frames 3 are provided with lock holes 3-1, and also includes a pressing component, the pressing component includes a bottom shell 5-1, the two ends of the bottom shell 5-1 are respectively connected to the sliding door frames 3 on both sides of the sliding door by multiple fixing screws 10, and the bottom shell 5-1 is connected to the unlocking component.

[0021] The pressing component includes two groups of symmetrically distributed spring parts, and a pressing touch plate 5-2 is slidingly connected to the bottom shell 5-1. Two groups of symmetrically distributed connecting grooves are provided on the pressing touch plate 5-2, and the connecting grooves include two symmetrically distributed sliding grooves 5-3. One end of the pressing touch plate 5-2 close to the unlocking component is combined with the bottom shell 5-1 to form an anti-pinch lock 5.

[0022] The spring part includes a base 6, which is fixedly installed in the bottom shell 5-1 through multiple screw holes 6-2. An ear plate 6-1 is fixedly installed on the base 6, and a pressing rod 8 is hinged on the ear plate 6-1. The first end of the pressing rod 8 is connected to the slide groove 5-3 through the guide shoe shaft 8-1. A connecting wing plate 8-3 is fixedly installed on the pressing rod 8. A U-shaped guide groove 8-2 is provided at the second end of the pressing rod 8. A reset spring 29 is provided at the hinge between the pressing rod 8 and the ear plate 6-1. The first end of the reset spring 29 is connected to the connecting wing plate 8-3, and the second end of the reset spring 29 is connected to the base 6.

[0023] The pressing assembly also includes a locking rod sleeve 7 and a locking rod 2 4. The locking rod sleeve 7 is slidably mounted on the base 6. A locking screw 7-1 for fixing the locking rod 2 4 is provided above the locking rod sleeve 7. A locking rod sleeve cam 7-2 is provided on the locking rod sleeve 7. The first end of the locking rod 2 4 is connected to the unlocking assembly, and the locking rod sleeve cam 7-2 is slidably connected to the U-shaped guide groove 8-2.

[0024] The unlocking assembly includes a cam 2, on which a cam handle 2-2 is fixedly mounted, and the cam handle 2-2 is rotatably mounted in the sliding door frame 3 through a cam shaft 2-1, and the first end of a lock rod 4 passes through a lock hole 3-1 and is in contact with the cam handle 2-2. The unlocking assembly also includes a lock rod 1, which is in contact with the cam 2, and a return spring 1-1 is sleeved on the lock rod 1, the first end of the return spring 1-1 is fixedly mounted on the lock rod 1, and the second end of the return spring 1-1 is fixedly mounted in the sliding door frame 3.

[0025] Working principle: Press the touch plate 5-2, and the guide shoe shaft 8-1 moves by pressing the sliding groove 5-3 on the touch plate 5-2. The guide shoe shaft 8-1 drives the pressing rod 8 to move. The pressing rod 8 drives the return spring 2 9 to move through the connecting wing plate 8-3. The pressing rod 8 drives the lock rod sleeve convex shaft 7-2 to move through the U-shaped guide groove 8-2. The lock rod sleeve convex shaft 7-2 drives the lock rod sleeve 7 to slide on the base 6. The lock rod sleeve 7 drives the lock rod 2 4 to move. The lock rod 2 4 pushes the cam handle 2- 2. The cam handle 2-2 drives the cam 2 to move, and the cam 2 causes the lock rod 1 to move upward, further unlocking the sliding door. The lock rod 1 compresses the return spring 1-1, and then releases the pressing touch plate 5-2. The elastic force of the return spring 2-9 drives the pressing rod 8 to reset. The pressing rod 8 drives the pressing touch plate 5-2 to reset through the guide shoe shaft 8-1. The return spring 1-1 drives the lock rod 1 to reset through its own elastic force, and the lock rod 1 drives the cam 2 to reset.

[0026] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A platform door track side anti-pinch lock, comprising a sliding door, wherein the sliding door comprises sliding door frames (3) on both sides, wherein the sliding door frames (3) are provided with lock holes (3-1), characterized in that: The pressing assembly further comprises a bottom shell (5-1), both ends of the bottom shell (5-1) being connected to the sliding door frames (3) on both sides of the sliding door via a plurality of fixing screws (10), and the bottom shell (5-1) is connected to an unlocking assembly.

2. The platform door track side anti-pinch lock according to claim 1, characterized in that: The pressing component comprises two groups of symmetrically distributed spring parts, a pressing touch plate (5-2) is slidably connected to the bottom shell (5-1), two groups of symmetrically distributed connecting grooves are provided on the pressing touch plate (5-2), and the connecting grooves include two symmetrically distributed sliding grooves (5-3), and one end of the pressing touch plate (5-2) close to the unlocking component is combined with the bottom shell (5-1) to form an anti-pinch lock (5).

3. The platform door track side anti-pinch lock according to claim 2, characterized in that: The spring portion includes a base (6), the base (6) is fixedly mounted in the bottom shell (5-1) through a plurality of screw holes (6-2), an ear plate (6-1) is fixedly mounted on the base (6), a pressing rod (8) is hinged on the ear plate (6-1), a first end of the pressing rod (8) is connected to the slide groove (5-3) through a guide shoe shaft (8-1), a connecting wing plate (8-3) is fixedly mounted on the pressing rod (8), a U-shaped guide groove (8-2) is provided at the second end of the pressing rod (8), a return spring 2 (9) is provided at the hinged position between the pressing rod (8) and the ear plate (6-1), a first end of the return spring 2 (9) is connected to the connecting wing plate (8-3), and a second end of the return spring 2 (9) is connected to the base (6).

4. The platform door track side anti-pinch lock according to claim 3, characterized in that: The pressing assembly further comprises a locking rod sleeve (7) and a second locking rod (4); the locking rod sleeve (7) is slidably mounted on the base (6); a locking screw (7-1) for fixing the second locking rod (4) is provided above the locking rod sleeve (7); a locking rod sleeve convex shaft (7-2) is provided on the locking rod sleeve (7); a first end of the second locking rod (4) is connected to the unlocking assembly; and the locking rod sleeve convex shaft (7-2) is slidably connected to the U-shaped guide groove (8-2).

5. The platform door track side anti-pinch lock according to claim 4, characterized in that: The unlocking assembly comprises a cam (2), a cam handle (2-2) is fixedly mounted on the cam (2), the cam handle (2-2) is rotatably mounted in the sliding door frame (3) via a cam shaft (2-1), and the cam handle (2-2) is connected to the first end of the second locking rod (4).

6. The platform door track side anti-pinch lock according to claim 5, characterized in that: The unlocking assembly further comprises a locking rod (1), the locking rod (1) being in contact with the cam (2), a return spring (1-1) being sleeved on the locking rod (1), a first end of the return spring (1-1) being fixedly mounted on the locking rod (1), and a second end of the return spring (1-1) being fixedly mounted in the sliding door frame (3).

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