Driving mechanism of translation type cabin door

Abstract

The utility model relates to the field of passenger cars, in particular to a driving mechanism of a translation type cabin door, which comprises a cabin frame, a cabin door, a bent arm and a driving component, the driving component comprises an electric supporting rod and an electric control unit, one end of the electric supporting rod is rotatably connected to the other side of the cabin frame, the other end of the electric supporting rod is rotatably connected with the top of the bent arm, and the electric control unit is connected with the cabin frame. The bottom of the bent arm is hinged to the inner side of the cabin door and meets the following conditional expression: F = 1.4 F0; d0 > = 2d; the electric control unit drives the electric supporting rod to stretch out and draw back, and translation type opening and closing of the cabin door are achieved through the bent arm. Meanwhile, the force arm of the electric supporting rod is limited when the cabin door is located at the lowest point and the highest point, the connecting position of one end of the electric supporting rod and the cabin frame is adjusted, the force arm of the electric supporting rod when the cabin door is located at the lowest point is lowered, and the force arm of the electric supporting rod when the large cabin door is located at the highest point is arranged, so that the minimum driving force for opening and closing the cabin door is effectively reduced; therefore, energy consumption is reduced, and cost is saved.

Description

Technical Field

[0001] The utility model relates to the field of passenger buses, and particularly to a driving mechanism for a translational hatch door. Background Art

[0002] Passenger buses, as an indispensable part of the modern transportation system, carry various needs such as people's daily travel, tourism, and business trips. With diverse vehicle models and comfortable riding environments, they provide passengers with convenient and efficient travel methods. From city buses to long-distance coaches, from tourist buses to school buses, passenger buses shuttle between the veins of cities and the fields of the countryside with their flexible and changeable roles.

[0003] Long-distance passenger vehicles are an important link between cities. The luggage compartments of long-distance buses usually adopt two modes: manual or electric. The manually opened hatch door requires passengers or drivers to operate by rotating a handle or pulling a lever. While the electrically opened hatch door can be automatically opened or closed by simply pressing a button or the corresponding button on the remote control.

[0004] For example, in the invention patent with the application number CN202011019219.8 and the name of a translational hatch door with a rabbet, it includes a door frame, a hatch door, a translational mechanism arranged in the door frame and used for opening or closing the hatch door, and a rabbet. The translational mechanism is used to control the opening and closing of the hatch door. However, the structural rationality of the translational mechanism is poor, resulting in relatively strenuous opening and closing of the hatch door, and thus higher energy consumption and greater application costs. Content of the Utility Model

[0005] The purpose of the utility model is to provide a driving mechanism for a translational hatch door, aiming to improve the problem that the conventional hatch door is relatively strenuous to open or close, resulting in higher energy consumption.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A driving mechanism for a translational hatch door includes a hatch frame, a hatch door, a bent arm, and a driving component. The hatch door covers one side of the hatch frame.

[0008] The driving component includes an electric strut and an electronic control unit. The electronic control unit is fixed inside the hatch frame and the hatch door. One end of the electric strut is rotatably connected to the other side of the hatch frame, and the other end of the electric strut is rotatably connected to the top of the bent arm. The bottom of the bent arm is hinged inside the hatch door. The electronic control unit drives the electric strut to extend and retract.

[0009] And it satisfies the following conditional formula:

[0010] F = 1.4F 0 ;

[0011] d0 ≧2d;

[0012] F is the force exerted by the electric strut when the hatch is at the lowest point; the F 0 is the force exerted by the electric strut when the hatch is at the highest point; d is the lever arm of F when the hatch is at the lowest point; the d 0 is the lever arm of F when the hatch is at the highest point 0 of the force.

[0013] Furthermore, the following conditional formula is satisfied,

[0014] P = (1.4dS 0 + d 0 S)G / d 0 H;

[0015] P is the minimum pulling force required to open the hatch; G is the gravity of the hatch; S is the lever arm of G when the hatch is at the lowest point; the S 0 is the lever arm of G when the hatch is at the highest point, and the magnitude of P is 147 - 196 N.

[0016] Furthermore, the electric control unit includes a self - engaging actuator, a self - engaging lock, a signal feedback lock, a transfer mechanism, a hatch lock, a rotating plate, and an electrolytic unlocking actuator;

[0017] The self - engaging actuator, the self - engaging lock, and the signal feedback lock are fixed on the hatch frame, and the transfer mechanism, the hatch lock, and the electrolytic unlocking actuator are fixed on the inner side of the hatch,

[0018] A fifth connecting rod is connected between the self - engaging actuator and the self - engaging lock; a first connecting rod is connected between the electrolytic unlocking actuator and the rotating plate; a second connecting rod is connected between the rotating plate and the lock core of the hatch lock; a third connecting rod is connected between the lock core of the hatch lock and the transfer mechanism; a fourth connecting rod is connected between the transfer mechanism and the signal feedback lock.

[0019] Furthermore, the number of the bent arms is two, and the two bent arms are respectively arranged on both inner sides of the hatch. A connecting block is fixed at the top ends of the two bent arms, and a connecting channel extending in the horizontal direction is opened on the connecting block,

[0020] A support rod extending in the horizontal direction is fixed inside the hatch frame, and the support rod passes through the connecting pipe.

[0021] Furthermore, a synchronous connecting rod is connected between the two bent arms.

[0022] Furthermore, a balance telescopic rod is fixed inside the hatch frame. One end of the balance telescopic rod is rotatably connected to the hatch frame, and the other end of the balance telescopic rod is rotatably connected to the inner bottom of the hatch.

[0023] Furthermore, a protective cover is fixed in the cabin frame, a mounting opening is provided at the bottom of the protective cover, and a cable channel and a clearance notch are provided on one side of the protective cover.

[0024] The self-closing actuator is fixed in the protective cover, the fifth connecting rod extends outward through the clearance gap, and the power line of the self-closing actuator extends outward through the wire harness channel.

[0025] Furthermore, a concave clearance groove and a first sealing ring strip are provided on one side of the cabin frame, and the cabin door comprises an outer skin, an inner sealing plate and an inner frame fixed between the outer skin and the inner sealing plate, the inner sealing plate is smaller than the outer skin, and the inner sealing plate and the inner frame are embedded in the clearance groove.

[0026] The first sealing ring strip is arranged around the notch of the clearance groove, and the inner edge of the outer skin is in contact with the first sealing ring strip.

[0027] Furthermore, a second sealing ring strip is sleeved on the edge of the inner sealing plate, and the second sealing ring strip is in contact with the bottom top of the give way groove.

[0028] Furthermore, the edge of the inner frame is located inside the edge of the inner sealing plate, and the outer side surface of the inner frame, the inner side surface of the inner sealing plate and the inner side surface of the outer skin together form an annular guide groove.

[0029] After adopting the above technical solution, the utility model has the following advantages compared with the background technology:

[0030] The electronic control unit drives the electric strut to extend and retract, and realizes the translational opening and closing of the door through the bent arm. At the same time, the force arm of the electric strut is limited when the door is at the lowest and highest points, and the connection position between one end of the electric strut and the cabin frame is adjusted to reduce the force arm of the electric strut when the door is at the lowest point, and set a larger force arm of the electric strut when the door is at the highest point, effectively reducing the minimum driving force for opening and closing the door, thereby reducing energy consumption and saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the door state of the translational door of the utility model;

[0032] Figure 2 It is a front structural schematic diagram of the driving mechanism of the translational door of the utility model;

[0033] Figure 3 It is a schematic diagram of the exploded structure of the driving mechanism of the translational door of the utility model;

[0034] Figure 4 It is a schematic diagram of the opening and closing of the driving mechanism of the sliding door of the utility model;

[0035] Figure 5 Schematic cross-sectional view of part A of the drive mechanism of the translational hatch door of the present utility model;

[0036] Figure 6 Schematic rear view of the drive mechanism of the translational hatch door of the present utility model;

[0037] Figure 7 Schematic connection diagram of the self-locking actuator and the self-locking latch of the drive mechanism of the translational hatch door of the present utility model;

[0038] Figure 8 Side view of the self-locking actuator of the drive mechanism of the translational hatch door of the present utility model;

[0039] Figure 9 Schematic diagram of the drive assembly of the drive mechanism of the translational hatch door of the present utility model.

[0040] Explanation of reference numerals in the drawings:

[0041] 1. Hatch frame; 11. Support rod; 12. Balanced telescopic rod; 13. Upper mounting seat; 14. Protective cover; 141. Cable channel; 142. Relief notch; 15. Mounting plate; 151. Long strip-shaped through hole; 16. Relief groove; 17. First sealing ring strip; 18. Second hinge seat;

[0042] 2. Hatch door; 21. Lower mounting seat; 22. Outer skin; 23. Inner frame; 24. Inner sealing plate; 241. Second sealing ring strip; 25. Annular flow guide groove; 26. First hinge seat;

[0043] 3. Bent arm; 31. Connecting block; 311. Connecting channel; 32. Hinge block; 33. Synchronous connecting rod;

[0044] 4. Drive assembly; 41. Electric strut; 42. Self-locking actuator; 421. Power cord; 43. Self-locking latch; 44. Signal feedback lock; 45. Transfer mechanism; 46. Hatch lock; 47. Rotating plate; 48. Electrolytic unlocking actuator; 49. First connecting rod; 50. Second connecting rod; 51. Third connecting rod; 52. Fourth connecting rod; 53. Fifth connecting rod. Detailed implementation manners

[0045] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0046] In addition, it should be noted that: The terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are all based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element of the present invention must have a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0047] When an element is referred to as being "fixed to" or "disposed on" or "provided on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0048] Unless otherwise clearly defined and limited, the terms "installed", "connected", and "joined" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. 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.

[0049] Embodiment

[0050] Please refer to Figures 1-9 As shown, this embodiment provides a driving mechanism for a translational hatch door, including a hatch frame 1, a hatch door 2, a bent arm 3, and a driving assembly 4. The hatch door 2 covers one side of the hatch frame 1.

[0051] The driving assembly 4 includes an electric strut 41 and an electronic control unit. The electronic control unit is fixed inside the hatch frame 1 and the hatch door 2. One end of the electric strut 41 is rotatably connected to the other side of the hatch frame 1, and the other end of the electric strut 41 is rotatably connected to the top of the bent arm 3. The bottom of the bent arm 3 is hinged inside the hatch door 2. The electronic control unit drives the electric strut 41 to extend and retract. In this embodiment, a second hinge seat 18 is fixed inside the hatch frame 1. One end of the electric strut 41 is hinged to the second hinge seat 18 through a rotating shaft. A hinge block 32 is fixed to the top of the bent arm 3. The other end of the electric strut 41 is hinged to the hinge block 32 through a rotating shaft.

[0052] Please refer to Figure 1 As shown, where point M is the connection position of one end of the electric strut 41, and the following conditional formula is satisfied.

[0053] F = 1.4F 0 ;

[0054] d 0 ≥ 2d;

[0055] Among them, F is the force exerted by the electric strut when the hatch 2 is at the lowest point; F 0 is the force exerted by the electric strut when the hatch 2 is at the highest point; d is the lever arm of F when the hatch 2 is at the lowest point; d 0 is the lever arm of F when the hatch 2 is at the highest point 0 .

[0056] The electronic control unit drives the electric strut 41 to extend and retract, and realizes the translational opening and closing of the hatch 2 through the bent arm 3. At the same time, the lever arms of the electric strut 41 when the hatch 2 is at the lowest point and the highest point are limited, the connection position of one end of the electric strut 41 and the hatch frame 1 is adjusted, the lever arm of the electric strut 41 when the hatch 2 is at the lowest point is reduced, and a larger lever arm of the electric strut 41 when the hatch 2 is at the highest point is set, effectively reducing the magnitude of the minimum driving force for opening and closing the hatch 2, thereby reducing energy consumption and saving costs.

[0057] Furthermore, the following conditional formula is satisfied

[0058] When the hatch 2 is at the highest point, according to the moment balance formula, it can be obtained that

[0059] F 0 d 0 = GS 0 ;

[0060] F 0 = GS 0 / d 0 ;

[0061] During the door opening process, according to the moment balance formula, it can be obtained that

[0062] PH = Fd + GS;

[0063] P = Fd + GS / H;

[0064] From F = 1.4F 0 it can be obtained that

[0065] P = (1.4dS 0 + d 0 S)G / d 0 H;

[0066] Among them, P is the minimum pulling force required to open the hatch 2; G is the gravity of the hatch 2; S is the lever arm of G when the hatch 2 is at the lowest point; S 0 is the lever arm of G when the hatch 2 is at the highest point, H is the lever arm of P when the hatch 2 is at the lowest point. Specifically, the magnitude of P is 147 - 196N. In this embodiment, G = mg = 30kg * 9.8 = 294N, S = 120mm, S 0 = 265mm, d = 23mm, d 0If \(L = 58\mathrm{mm}\), \(H = 428\mathrm{mm}\), then \(P=(1.4\times23\times265 + 58\times120)\times294\div(58\times428)=183\mathrm{N}\).

[0067] Please refer to Figure 6 In this embodiment shown, the electronic control unit includes a self - engaging actuator 42, a self - engaging latch 43, a signal feedback lock 44, a transfer mechanism 45, a cabin door lock 46, a rotating plate 47 and an electrolytic unlocking actuator 48; the self - engaging actuator 42, the self - engaging latch 43 and the signal feedback lock 44 are fixed on the cabin frame 1, and the transfer mechanism 45, the cabin door lock 46 and the electrolytic unlocking actuator 48 are fixed on the inner side of the cabin door 2. A fifth connecting rod 53 is connected between the self - engaging actuator 42 and the self - engaging latch 43; a first connecting rod 49 is connected between the electrolytic unlocking actuator 48 and the rotating plate 47; a second connecting rod 50 is connected between the rotating plate 47 and the lock core of the cabin door lock 46; a third connecting rod 51 is connected between the lock core of the cabin door lock 46 and the transfer mechanism 45; a fourth connecting rod 52 is connected between the transfer mechanism 45 and the signal feedback lock 44; the signal feedback lock 44 is arranged on the self - engaging latch 43, the self - engaging latch 43 is provided with a driving rod extending outwards, and the signal feedback lock 44 is provided with a driving groove corresponding to the position of the driving rod, and the driving rod extends into the driving groove; the signal feedback lock 44 outputs a feedback signal to the ECU (electronic control unit of the vehicle), and after the ECU processes it, it outputs a control signal to the engaging actuator 42 to control the operation of the self - engaging latch 43.

[0068] When the cabin door 2 is opened, the driver sends a control signal to the electrolytic unlocking actuator 48 through the instrument panel. The electrolytic unlocking actuator 48 works, pulls the first pull rod, and controls the unlocking of the cabin door lock 46 through the rotating plate 47 and the second pull rod. When the cabin door lock 46 is unlocked, it pulls the signal feedback lock 44 through the third pull rod, the transfer mechanism 45 and the fourth pull rod. The signal feedback lock 44 rotates self - driven, and the driving rod is separated from the driving groove; the signal feedback lock 44 outputs an opening signal to the self - engaging actuator 42, and the self - engaging actuator 42 pulls the fifth connecting rod 53 to drive the self - engaging latch 43 to unlock, and controls the electric strut 41 to push the bent arm 3 connected to the cabin door 2 to realize the opening of the cabin door 2.

[0069] When the cabin door 2 is closed, the driver sends a control signal to the electric strut 41 through the instrument panel. The electric strut 41 pulls the bent arm 3 connected to the cabin door 2 to close the cabin door 2. The cabin door lock 46 is locked, and drives the signal feedback lock 44 to rotate self - driven through the third pull rod, the transfer mechanism 45 and the fourth pull rod. The driving rod is embedded in the driving groove. The signal feedback lock 44 outputs a closing signal to the self - engaging actuator 42, and the self - engaging actuator 42 pulls the fifth connecting rod 53 to drive the self - engaging latch 43 to lock, and suck the cabin door 2.

[0070] In this embodiment, the number of the bent arms 3 is two, and the two bent arms 3 are respectively arranged on both sides inside the hatch door 2. Connection blocks 31 are fixed to the tops of the two bent arms 3, and a connection channel 311 extending in the horizontal direction is formed in the connection blocks 31. A support rod 11 extending in the horizontal direction is fixed inside the hatch frame 1, and the support rod 11 is inserted into the connection pipe. The top of the bent arm 3 rotates along the axial direction of the support rod 11 through the connection block 31 to realize the pushing open and pulling closed of the hatch door 2. Further, a synchronous connecting rod 33 is connected between the two bent arms 3, and the synchronous connecting rod 33 ensures the synchronization of the actions between the two bent arms 3 to ensure that the hatch door 2 can be opened and closed in parallel. In this embodiment, a first hinge seat 26 is fixed to the inner side of the hatch door 2, and the bottom end of the bent arm 3 is hinged to the first hinge seat 26.

[0071] Similarly, the number of the self - suction actuators 42, the self - suction latches 43, the signal feedback locking machines 44, the fifth connecting rods 53 and the fourth connecting rods 52 is two. The self - suction actuators 42, the self - suction latches 43, the signal feedback locking machines 44, the fifth connecting rods 53 and the fourth connecting rods 52 are divided into two groups and located on both sides of the transfer mechanism 45. Further, the number of the self - suction actuators 42, the self - suction latches 43, the signal feedback locking machines 44, the fifth connecting rods 53 and the fourth connecting rods 52 can be four, and the number of the transfer mechanisms 45 is two. The four self - suction actuators 42, the self - suction latches 43, the signal feedback locking machines 44, the fifth connecting rods 53 and the fourth connecting rods 52 are divided into four groups and located on both sides of the two transfer mechanisms 45 respectively. The two transfer mechanisms 45 are connected by a connecting rod. Four groups of self - suction latches 43 are provided to perform multi - directional suction on the hatch door 2, further improving the sealing effect of the hatch door 2.

[0072] A balance telescopic rod 12 is fixed inside the hatch frame 1. One end of the balance telescopic rod 12 is rotatably connected to the hatch frame 1, and the other end of the balance telescopic rod 12 is rotatably connected to the bottom inside of the hatch door 2. In this embodiment, the number of the balance telescopic rods 12 is two, and the two balance telescopic rods 12 are located on both sides inside the hatch door 2. Specifically, an upper mounting seat 13 is fixed inside the hatch frame 1, a lower mounting seat 21 is fixed to the inner side of the hatch door 2, and both ends of the balance telescopic rod 12 are respectively connected to the upper mounting seat 13 and the lower mounting seat 21 through a rotating shaft.

[0073] Please refer to Figure 7 and Figure 8A protective cover 14 is fixed in the cabin frame 1 shown, and a mounting opening is provided at the bottom of the protective cover 14, and a wire channel 141 and a clearance notch 142 are provided on one side of the protective cover 14. The self-closing actuator 42 is fixed in the protective cover 14, and the fifth connecting rod 53 extends outward through the clearance notch 142, and the power cord 421 of the self-closing actuator 42 extends outward through the wire channel 141. The self-closing actuator 42 enters the protective cover 14 through the mounting opening and is fixedly connected to the protective cover 14 by bolts. The wire channel 141 constrains the power cord 421 to ensure the simplicity of the line connection, and the clearance notch 142 makes way for the fifth connecting rod 53 to avoid the fifth connecting rod 53 itself from needing to bend in a transitional manner, which affects the connection between the self-closing actuator 42 and the self-closing lock 43.

[0074] In this embodiment, a mounting plate 15 is also fixed in the cabin frame 1, and a long strip mounting through hole is provided on the mounting plate 15. A mounting hole is provided on the self-absorbent lock buckle 43, and the long strip mounting through hole corresponds to the position of the mounting hole, and the opening length of the long strip mounting through hole is greater than the opening width of the mounting hole. The length space of the long strip mounting through hole is used to facilitate the adjustment and installation of the position of the self-absorbent lock buckle 43, which has better flexibility.

[0075] Please refer to Figures 2-5 In the embodiment shown, a concave clearance groove 16 and a first sealing ring strip 17 are provided on one side of the cabin frame 1, and the first sealing ring strip 17 is arranged around the notch of the clearance groove 16. The hatch 2 includes an outer skin 22, an inner sealing plate 24, and an inner frame 23 fixed between the outer skin 22 and the inner sealing plate 24. The size of the inner sealing plate 24 is smaller than the outer skin 22, and the inner sealing plate 24 and the inner frame 23 are embedded in the clearance groove 16. When the hatch 2 is closed, the inner edge of the outer skin 22 contacts the first sealing ring strip 17, and the self-absorbing lock 43 absorbs the hatch 2, providing an inward force for the hatch 2, ensuring the tightness of the contact between the outer skin 22 and the first sealing ring strip 17, forming a first layer of waterproof structure, and improving the waterproof performance of the hatch 2.

[0076] Furthermore, a second sealing ring strip 241 is sleeved on the edge of the inner sealing plate 24, and the second sealing ring strip 241 contacts the bottom of the groove 16. When the hatch 2 is closed, the self-sucking lock 43 sucks the hatch 2, providing an inward force for the hatch 2, ensuring the tightness of the contact between the inner sealing plate 24 and the second sealing ring strip 241, forming a second layer of waterproof structure, and further improving the waterproof performance of the hatch 2.

[0077] Further, the edge of the inner frame 23 is located inside the edge of the inner sealing plate 24. The outer side surface of the inner frame 23, the inner side surface of the inner sealing plate 24, and the inner side surface of the outer skin 22 enclose to form an annular diversion groove 25. The inner sealing plate 24 blocks the water in the annular diversion groove 25, and the water entering the annular diversion groove 25 can only flow out of the hatch 2 from both sides, forming a third waterproof structure to further improve the waterproof performance of the hatch 2.

[0078] As mentioned above, only the preferred specific embodiments of the present invention are described, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A driving mechanism for a sliding door, characterized in that: It includes a cabin frame, a cabin door, a curved arm and a driving assembly. The cabin door cover is arranged on one side of the cabin frame. The driving assembly includes an electric strut and an electric control unit, wherein the electric control unit is fixed to the cabin frame and the inner side of the cabin door, one end of the electric strut is rotatably connected to the other side of the cabin frame, the other end of the electric strut is rotatably connected to the top of the curved arm, and the bottom of the curved arm is hinged to the inner side of the cabin door, and the electric control unit drives the electric strut to extend and retract. And satisfy the following conditions, F = 1.4F0; d0≧2d; F is the force applied by the electric strut when the cabin door is at the lowest point; F0 is the force applied by the electric strut when the cabin door is at the highest point; d is the lever arm of F when the cabin door is at the lowest point; d0 is the lever arm of F0 when the cabin door is at the highest point.

2. The driving mechanism of the sliding door according to claim 1, characterized in that: Satisfy the following conditions: P = (1.4dS0 + d0S) G / d0H; P is the minimum pulling force required to open the hatch; G is the gravity of the hatch; S is the lever arm of G when the hatch is at the lowest point; S0 is the lever arm of G when the hatch is at the highest point, and the size of P is 147-196N.

3. The driving mechanism of the sliding door according to claim 1, characterized in that: The electric control unit includes a self-closing actuator, a self-closing lock, a signal feedback lock machine, a transfer mechanism, a door lock, a rotating plate and an electric unlocking actuator; The self-closing actuator, the self-closing lock and the signal feedback lock are fixed on the cabin frame, and the transfer mechanism, the cabin door lock and the electric unlocking actuator are fixed on the inner side of the cabin door. A fifth connecting rod is connected between the self-closing actuator and the self-closing lock, a first connecting rod is connected between the electric unlocking actuator and the rotating plate, a second connecting rod is connected between the rotating plate and the lock core of the cabin door lock, a third connecting rod is connected between the lock core of the cabin door lock and the transfer mechanism, and a fourth connecting rod is connected between the transfer mechanism and the signal feedback lock machine.

4. The driving mechanism of the sliding door according to claim 1, characterized in that: There are two curved arms, which are respectively arranged on both sides of the hatch. Connecting blocks are fixed to the tops of the two curved arms, and connecting channels extending in the horizontal direction are provided on the connecting blocks. A support rod extending in a horizontal direction is fixed in the cabin frame, and the support rod is passed through the connecting pipe.

5. The driving mechanism of the sliding door according to claim 4, characterized in that: A synchronous connecting rod is connected between the two bent arms.

6. The driving mechanism of the sliding door according to claim 1, characterized in that: A balancing telescopic rod is fixed in the cabin frame, one end of the balancing telescopic rod is rotatably connected to the cabin frame, and the other end of the balancing telescopic rod is rotatably connected to the bottom of the inner side of the cabin door.

7. The driving mechanism of the sliding door according to claim 3, characterized in that: A protective cover is fixed in the cabin frame, a mounting opening is provided at the bottom of the protective cover, and a cable channel and a clearance notch are provided on one side of the protective cover. The self-closing actuator is fixed in the protective cover, the fifth connecting rod extends outward through the clearance gap, and the power line of the self-closing actuator extends outward through the wire harness channel.

8. The driving mechanism of the sliding door according to claim 1, characterized in that: A concave clearance groove and a first sealing ring strip are provided on one side of the cabin frame. The cabin door comprises an outer skin, an inner sealing plate and an inner frame fixed between the outer skin and the inner sealing plate. The size of the inner sealing plate is smaller than that of the outer skin. The inner sealing plate and the inner frame are embedded in the clearance groove. The first sealing ring strip is arranged around the notch of the clearance groove, and the inner edge of the outer skin is in contact with the first sealing ring strip.

9. The driving mechanism of the sliding door according to claim 8, characterized in that: A second sealing ring strip is sleeved on the edge of the inner sealing plate, and the second sealing ring strip is in contact with the bottom top of the give way groove.

10. The driving mechanism of the sliding door according to claim 8, characterized in that: The edge of the inner frame is located inside the edge of the inner sealing plate, and the outer side surface of the inner frame, the inner side surface of the inner sealing plate and the inner side surface of the outer skin are combined to form an annular guide groove.

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