Car door locking device

Abstract

This utility model discloses a car door locking device, relating to the field of car door locking technology. It includes a car, with multiple equidistant protective glass panels installed on opposite sides of the front and rear ends of the car, and multiple equidistant observation glass panels installed on both sides of the car. A first sliding platform is slidably installed on one side between two inner and outer protective glass panels, and a second sliding platform is slidably installed on the other side between the two inner and outer protective glass panels. Closing glass panels are installed inside the first and second sliding platforms. A locking assembly is installed inside the car. In this utility model, the cooperation between the snap-fit ​​block and the fitting groove provides initial positioning for the first and second sliding platforms when they are closed, solving the problem of easy misalignment when the sliding platforms are closed and improving the accuracy of car door closing. The cooperation between the electric push cylinder and the locking block solves the problem of laborious and inefficient manual locking, improving the automation level of car door locking.

Description

Technical Field

[0001] This utility model relates to the field of car door locking technology, and in particular to a car door locking device. Background Technology

[0002] During car operation, the locking performance of the car door is directly related to personnel safety and equipment operation stability. Therefore, the reliability, accuracy and emergency response capability of its locking device have always been the focus of the industry. Existing car door locking devices mostly adopt mechanical locking or simple electric drive structure, which have many shortcomings in practical applications. For example, some sliding doors in elevators often experience door misalignment during closing due to the lack of an effective initial positioning structure. This prevents the locking components from accurately engaging, affecting closing efficiency and potentially reducing the device's lifespan due to long-term wear and tear from misalignment. Other devices rely on manual operation for locking, which is laborious, inefficient, and prone to safety hazards due to improper human intervention in frequent use scenarios. Furthermore, some electric locking devices lack stable guidance during movement, leading to misalignment and insecure locking. This poses a risk of door loosening during operation, seriously threatening personnel safety. The emergency unlocking problem in case of power failure is particularly prominent. In most existing elevator door locking devices, the electric drive components fail during power outages, preventing automatic release of the locking structure and trapping passengers inside the car, hindering rapid escape and posing a significant safety hazard in emergencies. This problem is even more pronounced in high-altitude or enclosed elevators such as cable cars. Therefore, these issues need to be addressed. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a car door locking device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a car door locking device, comprising a car, wherein multiple equidistant protective glass panels are installed on the opposite sides of the front and rear ends of the car, and multiple equidistant observation glass panels are installed on both sides of the car; a first sliding platform and a second sliding platform are slidably connected between the inner and outer protective glass panels respectively, and a closing glass is installed in the first sliding platform and the second sliding platform; a locking component is installed inside the car.

[0005] Preferably, a snap-fit ​​block is installed above the inner side of the second sliding table and the opposite side of the first sliding table. The first sliding table is fitted with a groove to cooperate with the snap-fit ​​block. The snap-fit ​​block is slidably connected to the groove. A snap-fit ​​groove is opened on the top surface of the snap-fit ​​block. A snap-fit ​​hole is vertically opened on the top surface of the groove to cooperate with the snap-fit ​​groove. The snap-fit ​​hole penetrates the top of the first sliding table.

[0006] Preferably, a movable chamber is provided above the front and rear inner cavities of the car. An isolation plate is installed on both sides of the movable chamber, and the isolation plate divides the movable chamber into a driving chamber on both sides and a locking chamber between the two driving chambers. The locking component is installed in the movable chamber.

[0007] Preferably, the locking assembly includes an electric push cylinder installed in the driving chamber and a locking platform installed in the locking chamber; the driving end of the electric push cylinder passes through the isolation plate and is placed in the locking chamber, and the driving end of the electric push cylinder is equipped with an inverted trapezoidal locking block through a coupling.

[0008] Preferably, guide rods are vertically installed on both sides of the locking chamber, and guide holes for cooperating with the guide rods are opened on both sides of the top surface of the locking platform. The guide rods pass through the guide holes, and limit plates are fixedly connected to the upper ends of the two guide rods on their adjacent surfaces. A snap-fit ​​rod is vertically fixed to one side of the bottom surface of the locking platform. Springs are installed on both sides of the bottom surface of the locking platform, with the top surface of the springs abutting against the bottom surface of the locking platform and the bottom surface of the springs abutting against the top surface of the locking chamber.

[0009] Preferably, the first sliding table has a snap-fit ​​hole that penetrates the bottom surface of the locking chamber. The locking chamber is connected to the fitting groove of the first sliding table through the snap-fit ​​hole. The snap-fit ​​rod passes through the snap-fit ​​hole and abuts against the snap-fit ​​groove of the snap-fit ​​block. The top surface of the limiting plate on which the guide rod is installed is at the same horizontal height as the top surface of the snap-fit ​​block. The bottom surface of the locking block abuts against the top surface of the locking table.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: In this utility model, the cooperation between the snap-fit ​​block and the fitting groove plays a preliminary positioning role when the first and second sliding platforms are closed, solving the problem of easy misalignment when the sliding platforms are closed and improving the accuracy of the car door closing; the cooperation between the electric push cylinder and the locking block drives the locking block to squeeze the locking platform, which plays a role in transmitting driving force to realize the downward movement of the locking platform, solving the problem of laborious and inefficient manual locking and improving the automation level of car door locking; the cooperation between the locking platform and the guide rod plays a role in restricting the movement direction of the locking platform, solving the problem of easy deviation during the downward movement of the locking platform and improving the stability of the locking component operation; the cooperation between the snap-fit ​​rod and the snap-fit ​​groove on the snap-fit ​​block plays a role in firmly locking the first and second sliding platforms, solving the problem of easy loosening of the car door during operation and improving the safety of car use; the cooperation between the spring and the locking platform, when the power is cut off, the spring pushes the locking platform to reset, which plays a role in automatically unlocking, solving the emergency problem that the car door cannot be opened when the power is cut off and improving the emergency safety of the car in sudden situations. Attached Figure Description

[0011] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure proposed in this utility model; Figure 2 This is a partial sectional view of the overall structure proposed in this utility model; Figure 3 The present utility model proposes Figure 2 Enlarged schematic diagram of section A in the middle; Figure 4 The present utility model proposes Figure 2 Enlarged schematic diagram of part B in the middle section.

[0012] The numbers in the diagram are: 1. Car; 2. Protective glass; 3. First sliding platform; 4. Second sliding platform; 5. Closing glass; 6. Isolation plate; 7. Drive chamber; 8. Locking chamber; 9. Electric cylinder; 10. Locking block; 11. Guide rod; 12. Locking platform; 13. Snap-fit ​​rod; 14. Spring; 15. Snap-fit ​​block; 16. Fitting groove. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0014] Example: See Figures 1 to 4This utility model discloses a car door locking device, comprising a car 1, with laser sensors connected inside and outside the car 1 (model O300.GL-11171740). Data is imported through the sensors to learn the opening and closing strokes. Multiple equidistant protective glass panes 2 are installed on opposite sides of the front and rear ends of the car 1 to protect the occupants inside. Multiple equidistant observation glass panes are installed on both sides of the car 1. A first sliding platform 3 and a second sliding platform 4 are slidably connected between the inner and outer protective glass panes 2, respectively. The first sliding platform 3 facilitates the installation of a closing glass pane 5; the second sliding platform 4 facilitates the installation of the closing glass pane 5; the closing glass pane 5 is installed inside the first sliding platform 3 and the second sliding platform 4; the closing glass pane 5 facilitates the opening and closing of the car 1 in conjunction with the first sliding platform 3 and the second sliding platform 4; a locking assembly is installed inside the car 1. A locking block 15 is installed above the inner surface of the second sliding platform 4 and the first sliding platform 3. The locking block 15 facilitates the subsequent closing of the first sliding platform 3 and the second sliding platform 4 with the locking assembly. The first sliding platform 3 has a fitting groove 16 that fits the locking block 15, which facilitates the guidance of the locking block 15. The locking block 15 is slidably connected to the fitting groove 16. The top surface of the locking block 15 has a locking groove, and the top surface of the fitting groove 16 has a vertical locking hole that fits the locking groove. The locking hole penetrates the top of the first sliding platform 3. Moving chambers are provided above the front and rear inner cavities of the car 1. Isolation plates 6 are installed on both sides of the moving chambers to separate the moving chambers. The isolation plates 6 divide the moving chambers into two driving chambers 7 on both sides and a locking chamber 8 between the two driving chambers 7. The locking chamber 8 facilitates the installation of some locking components, which are installed in the moving chambers.

[0015] In this invention, the locking assembly includes an electric cylinder 9 installed in the drive chamber 7 and a locking platform 12 installed in the locking chamber 8. The electric cylinder 9, model WSFW, facilitates the installation of the driving locking block 10. The locking platform 12 facilitates the driving of the locking rod 13 to limit the locking block 15. The driving end of the electric cylinder 9 passes through the isolation plate 6 and is placed in the locking chamber 8. The driving end of the electric cylinder 9 is equipped with an inverted trapezoidal locking block 10 via a coupling, which facilitates the locking platform 12 to abut against it. Guide rods 11 are vertically installed on both sides inside the locking chamber 8 to facilitate the smooth up-and-down movement of the locking platform 12. Guide holes for the guide rods 11 are opened on both sides of the top surface of the locking platform 12. The guide rods 11 pass through the guide holes, and the two guide rods 11 are close to each other. A limiting plate is fixed to the upper end, and a snap-fit ​​rod 13 is vertically fixed to one side of the bottom surface of the locking platform 12; the snap-fit ​​rod 13 facilitates the limiting of the snap-fit ​​block 15; springs 14 are installed on both sides of the bottom surface of the locking platform 12, the top surface of the springs 14 abuts against the bottom surface of the locking platform 12, and the bottom surface of the springs 14 abuts against the top surface of the locking chamber 8, so that the locking platform 12 has a driving force to reset after power failure; the first sliding platform 3 has a snap-fit ​​hole that penetrates the bottom surface of the locking chamber 8, and the locking chamber 8 is connected to the fitting groove 16 opened by the first sliding platform 3 through the snap-fit ​​hole. After the snap-fit ​​rod 13 passes through the snap-fit ​​hole, it abuts against the snap-fit ​​groove opened by the snap-fit ​​block 15. The top surface of the limiting plate on which the guide rod 11 is installed is at the same horizontal height as the top surface of the snap-fit ​​block 15; and the bottom surface of the locking block 10 abuts against the top surface of the locking platform 12.

[0016] Working principle: When using this utility model, the car 1 (including the protective glass 2) is placed in the designed position (during the initial debugging stage, both the entrance and exit ends of the car 1 are open). When the test personnel enter the car 1, the drive structure inside the car 1 is activated, which drives the first sliding platform 3 and the second sliding platform 4 (with the closing glass 5 installed) to move relative to each other, closing the entrance end of the car 1. At this time, the locking block 15 installed on the upper end of the second sliding platform 4 engages with the fitting groove 16 opened in the first sliding platform 3. Then, the car is started after passing through the isolation... After the plate 6 separates, the electric push cylinder 9 in the drive chamber 7 drives the locking block 10 to move. The locking block 10 presses the locking platform 12 in the locking chamber 8, which is limited by the guide rod 11. Since the locking block 10 has an inverted trapezoidal structure, the locking platform 12 will move down. The downward movement of the locking platform 12 will drive the snap-fit ​​rod 13 to move down. The snap-fit ​​rod 13 will be guided and limited by the snap-fit ​​hole and snap-fit ​​into the snap-fit ​​groove opened on the top surface of the snap-fit ​​block 15 to limit the first sliding platform 3 and the second sliding platform 4. At this time, the closing of the car 1 is completed. When an external power outage occurs, the electric cylinder 9 located in the drive chamber 7 will be de-energized and reset. At this time, the spring 14 located on the bottom surface of the locking platform 12 will increase the upward thrust on the locking platform 12, lifting the locking platform 12 and thus lifting the latching rod 13, releasing the latching rod 13 from limiting the latching block 15. At this time, the personnel inside the car 1 can manually open the first sliding platform 3 and the second sliding platform 4 from the inside to escape.

[0017] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A car door locking device comprising a car (1), characterized by: Multiple equidistant protective glass (2) are installed on the opposite sides of the front and rear ends of the car (1), and multiple equidistant observation glass are installed on both sides of the car (1); a first sliding platform (3) and a second sliding platform (4) are slidably connected between the two protective glass (2) on the inner and outer sides respectively, and a closing glass (5) is installed in the first sliding platform (3) and the second sliding platform (4); a locking component is installed in the car (1).

2. A car door locking device according to claim 1, characterized in that: A snap-fit ​​block (15) is installed above the inner side of the second sliding table (4) and the opposite side of the first sliding table (3). The first sliding table (3) cooperates with the snap-fit ​​block (15) to form a fitting groove (16). The snap-fit ​​block (15) is slidably connected to the fitting groove (16). The top surface of the snap-fit ​​block (15) is provided with a snap-fit ​​groove. The top surface of the fitting groove (16) is provided with a snap-fit ​​hole vertically connected to the snap-fit ​​groove. The snap-fit ​​hole penetrates the top of the first sliding table (3).

3. A car door locking device according to claim 1, characterized in that: The car (1) has a movable chamber above the front and rear interior cavities. The movable chamber is equipped with an isolation plate (6) on both sides. The isolation plate (6) divides the movable chamber into a driving chamber (7) on both sides and a locking chamber (8) between the driving chambers (7) on both sides. The locking component is installed in the movable chamber.

4. A car door locking device according to claim 3, characterized in that: The locking assembly includes an electric cylinder (9) installed in the drive chamber (7) and a locking platform (12) installed in the locking chamber (8); the drive end of the electric cylinder (9) passes through the isolation plate (6) and is placed in the locking chamber (8), and the drive end of the electric cylinder (9) is equipped with an inverted trapezoidal locking block (10) through a coupling.

5. A car door locking device according to claim 4, characterized in that: Guide rods (11) are vertically installed on both sides inside the locking chamber (8). Guide holes for the guide rods (11) are opened on both sides of the top surface of the locking platform (12). The guide rods (11) pass through the guide holes. Limiting plates are fixedly connected to the upper ends of the two guide rods (11) on their similar surfaces. A snap-fit ​​rod (13) is vertically fixed to one side of the bottom surface of the locking platform (12). Springs (14) are installed on both sides of the bottom surface of the locking platform (12). The top surface of the springs (14) abuts against the bottom surface of the locking platform (12), and the bottom surface of the springs (14) abuts against the top surface of the locking chamber (8).

6. A car door locking device according to claim 5, characterized in that: The first sliding table (3) has a snap-fit ​​hole that penetrates the bottom surface of the locking chamber (8). The locking chamber (8) is connected to the fitting groove (16) opened by the first sliding table (3) through the snap-fit ​​hole. The snap-fit ​​rod (13) passes through the snap-fit ​​hole and abuts against the snap-fit ​​groove opened by the snap-fit ​​block (15). The top surface of the limiting plate on which the guide rod (11) is installed is at the same horizontal height as the top surface of the snap-fit ​​block (15). The bottom surface of the locking block (10) abuts against the top surface of the locking table (12).

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