Double-gear adjustable downward pressing type handrail

Abstract

The utility model belongs to the technical field of double-gear adjustable downward-pressing type armrests, particularly relates to a double-gear adjustable downward-pressing type armrest, and aims to solve the problem that an existing downward-pressing type armrest cannot store an armrest body on the inner wall of a vehicle body so as to occupy aisle space, the following scheme is provided: the double-gear adjustable downward-pressing type armrest comprises an armrest body; the reset device is arranged on the armrest body, and the reset device can drive the armrest body to reset; the gear transmission mechanism is arranged on the armrest body; the buckling device is arranged on one side of the gear transmission mechanism; the lifting device is arranged at the bottom of the armrest body; the screw transmission mechanism is arranged at the bottom of the lifting device; the fixing device is arranged on the lifting device; the armrest body can be stored on the inner wall of a vehicle body, so that the purpose of improving the space utilization rate of a passage is achieved.

Description

Technical Field

[0001] This application relates to the field of dual-position adjustable downward-pressing handrail technology, and in particular to a dual-position adjustable downward-pressing handrail. Background Technology

[0002] A push-down handrail is a handrail design that can be folded or adjusted by pressing, and is commonly found in public facilities and home settings.

[0003] Patent document CN221014360U discloses a press-down handrail, including a handrail and a rotating support mechanism symmetrically arranged on both sides of the handrail. The press-down handrail presses one end of the limiting piece by a press-down rod, and the hook separates from the second slot. At this time, the spring is in a stretched state. When the rotating piece is rotated, the limiting pin of the rotating piece slides from one end of the limiting slot to the other end, and the hook engages with the first slot. After the hook of the limiting piece is engaged, the spring returns to its original position, realizing the folding of the handrail and solving the problem of the inconvenience of folding the treadmill handrail.

[0004] However, existing push-down handrails cannot be retracted into the interior wall of the vehicle, thus occupying aisle space. To address this, a dual-position adjustable push-down handrail has been proposed. Utility Model Content

[0005] In order to improve the problem that existing down-pressing handrails cannot be stored on the inner wall of the vehicle body, thus occupying aisle space, this application provides a dual-position adjustable down-pressing handrail.

[0006] The technical solution for a dual-position adjustable downward-pressing handrail provided in this application is as follows:

[0007] A dual-position adjustable downward-pressing armrest includes:

[0008] The armrest itself;

[0009] A reset device is provided on the handrail body;

[0010] Gear transmission mechanism, which is installed on the handrail body;

[0011] A latching device is located on one side of the gear transmission mechanism;

[0012] A lifting device is located at the bottom of the handrail body;

[0013] The screw drive mechanism is located at the bottom of the lifting device;

[0014] The fixing device is installed on the lifting device.

[0015] Furthermore, the reset device includes two reset springs, a fixed frame, and a first rotating shaft. The first rotating shaft is fixedly connected to the handrail body, and the two ends of the two reset springs are fixedly connected to the first rotating shaft and the fixed frame, respectively. The reset device can drive the handrail body to perform a reset operation.

[0016] Furthermore, the gear transmission mechanism includes a damping shaft, two first gears, two second gears, and a second shaft. The second shaft is rotatably connected to a fixed frame. Both ends of the second shaft are fixedly connected to the two second gears, and both ends of the handrail body are fixedly connected to the two first gears. The two second gears mesh with the two first gears, and the damping shaft is fixedly connected to one of the two second gears.

[0017] Furthermore, the latching device includes two push rod motors, two latching blocks, and two latching pins. Two first gears are fixedly connected to the two latching blocks respectively. Both push rod motors are mounted on a fixed frame. The output shafts of the two push rod motors are fixedly connected to the two latching pins respectively. The two latching pins cooperate with the two latching blocks respectively.

[0018] Furthermore, the lifting device includes two telescopic rods, a lifting frame, and a control system. The two ends of the two telescopic rods are fixedly connected to the fixed frame and the lifting frame, respectively, and the control system is installed on the lifting frame.

[0019] Furthermore, the screw transmission mechanism includes a forward and reverse motor, a screw, and a connecting rod. The forward and reverse motor is installed at the bottom of the lifting frame, the output shaft of the forward and reverse motor is fixedly connected to the screw, the screw is threadedly connected to the connecting rod, and the connecting rod is fixedly connected to the fixed frame.

[0020] Furthermore, the fixing device includes two fixing plates and four fixing bolts. The two fixing plates are fixedly connected to both sides of the lifting frame, and the four fixing bolts are threadedly connected to the two fixing plates.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. By starting the forward and reverse motor, the screw is driven to rotate, the screw drives the connecting rod to move, and the movement of the connecting rod drives the fixed frame, two telescopic rods, reset device, gear transmission mechanism and buckle device to move to the appropriate height;

[0023] 2. When a passenger presses down on the handrail body, the handrail body drives two first gears to rotate, which in turn drives two second gears and a second rotating shaft to rotate. One of the two second gears drives the damping rotating shaft to rotate. When a specific angle is reached, the damping rotating shaft jams. At this time, the central control system automatically starts two push rod motors, which push two locking pins to move to the opening of the locking block to limit the handrail body. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure in Embodiment 1 of this application;

[0025] Figure 2 This is a schematic diagram of the internal structure in Embodiment 1 of this application;

[0026] Figure 3 This is a schematic diagram of the connection structure of the reset device, gear transmission mechanism and buckling device in Embodiment 1 of this application;

[0027] Figure 4 This is a schematic diagram of the connection structure between the gear transmission mechanism and the snap-fit ​​device in Embodiment 1 of this application.

[0028] Reference numerals in the attached drawings: 1. Handrail body; 2. First pivot; 3. Lifting frame; 4. Damping pivot; 5. Fixed frame; 6. Fixed plate; 7. Fixed bolt; 8. Control system; 9. Forward and reverse motor; 10. Return spring; 11. Connecting rod; 12. Screw; 13. Push rod motor; 14. Telescopic rod; 15. Second pivot; 16. First gear; 17. Locking block; 18. Second gear; 19. Locking pin. Detailed Implementation

[0029] Example 1

[0030] The following is in conjunction with the appendix Figures 1-4 The first embodiment of this application will be described in further detail.

[0031] A dual-position adjustable downward-pressing armrest includes:

[0032] Handrail body 1;

[0033] A reset device is provided on the handrail body 1;

[0034] A gear transmission mechanism is provided on the handrail body 1;

[0035] A latching device is located on one side of the gear transmission mechanism;

[0036] A lifting device is located at the bottom of the handrail body 1;

[0037] The screw drive mechanism is located at the bottom of the lifting device;

[0038] The fixing device is installed on the lifting device.

[0039] Reference Figures 2-4 The reset device includes two reset springs 10, a fixed frame 5 and a first rotating shaft 2. The first rotating shaft 2 is fixedly connected to the handrail body 1. The two ends of the two reset springs 10 are fixedly connected to the first rotating shaft 2 and the fixed frame 5 respectively. The reset device can drive the handrail body 1 to perform reset work.

[0040] The gear transmission mechanism includes a damping shaft 4, two first gears 16, two second gears 18, and a second shaft 15. The second shaft 15 is rotatably connected to the fixed frame 5. Both ends of the second shaft 15 are fixedly connected to the two second gears 18, and both ends of the handrail body 1 are fixedly connected to the two first gears 16. The two second gears 18 mesh with the two first gears 16, and the damping shaft 4 is fixedly connected to one of the two second gears 18.

[0041] The latching device includes two push rod motors 13, two latch blocks 17 and two latch pins 19. Two first gears 16 are fixedly connected to the two latch blocks 17 respectively. The two push rod motors 13 are both mounted on the fixed frame 5. The output shafts of the two push rod motors 13 are fixedly connected to the two latch pins 19 respectively. The two latch pins 19 cooperate with the two latch blocks 17 respectively.

[0042] The lifting device includes two telescopic rods 14, a lifting frame 3, and a control system 8. The two ends of the two telescopic rods 14 are fixedly connected to the fixed frame 5 and the lifting frame 3, respectively, and the control system 8 is installed on the lifting frame 3.

[0043] The screw drive mechanism includes a forward and reverse motor 9, a screw 12, and a connecting rod 11. The forward and reverse motor 9 is installed at the bottom of the lifting frame 3. The output shaft of the forward and reverse motor 9 is fixedly connected to the screw 12. The screw 12 is threadedly connected to the connecting rod 11. The connecting rod 11 is fixedly connected to the fixed frame 5.

[0044] The fixing device includes two fixing plates 6 and four fixing bolts 7. The two fixing plates 6 are fixedly connected to both sides of the lifting frame 3 respectively, and the four fixing bolts 7 are threadedly connected to the two fixing plates 6 respectively.

[0045] The implementation principle of a dual-position adjustable downward-pressing handrail in this application embodiment is as follows: The lifting frame 3 is attached to the inner wall of the vehicle body, and four fixing bolts 7 are turned to fix the two fixing plates 6 and the lifting frame 3. The central control system 8 can start the forward and reverse motor 9, which drives the screw 12 to rotate. The screw 12 drives the connecting rod 11 to move, and the movement of the connecting rod 11 drives the fixing frame 5 and the two telescopic rods 14 to move. Then, when the passenger presses down on the handrail body 1, the handrail body 1 drives the two first gears 16 to rotate, and the two first gears 16 drive the two second gears 14 to rotate. Gear 18 and second shaft 15 rotate. One of the two second gears 18 drives the damping shaft 4 to rotate. When a specific angle is reached, the damping shaft 4 jams (Note: The damping shaft 4 is a mechanical part used to provide damping force and specific rotation characteristics during rotation). At this time, the central control system 8 automatically starts the two push rod motors 13. The two push rod motors 13 push the two locking pins 19 to move to the opening of the locking block 17 to limit the handrail body 1 (the locking block 16 has two openings with positions of 30 degrees and 45 degrees respectively).

[0046] Example 2

[0047] The difference between this embodiment and embodiment one is that friction blocks are provided on the handrail body 1, which can improve the comfort of the user; the handrail body 1 is an upward type, because the current downward type handrail body 1 will occupy the width of the aisle and make it inconvenient for passengers to walk, while the upward type is more comfortable for the human body.

[0048] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A dual-position adjustable downward-pressing handrail, characterized in that: include: Handrail body (1); A reset device is provided on the handrail body (1); A gear transmission mechanism is provided on the handrail body (1); A latching device is located on one side of the gear transmission mechanism; A lifting device is located at the bottom of the handrail body (1); The screw drive mechanism is located at the bottom of the lifting device; The fixing device is installed on the lifting device.

2. The dual-position adjustable downward-pressing handrail according to claim 1, characterized in that: The reset device includes two reset springs (10), a fixed frame (5) and a first rotating shaft (2). The first rotating shaft (2) is fixedly connected to the handrail body (1). The two ends of the two reset springs (10) are fixedly connected to the first rotating shaft (2) and the fixed frame (5) respectively. The reset device can drive the handrail body (1) to perform reset work.

3. The dual-position adjustable downward-pressing handrail according to claim 2, characterized in that: The gear transmission mechanism includes a damping shaft (4), two first gears (16), two second gears (18), and a second shaft (15). The second shaft (15) is rotatably connected to the fixed frame (5). The two ends of the second shaft (15) are fixedly connected to the two second gears (18), and the two ends of the handrail body (1) are fixedly connected to the two first gears (16). The two second gears (18) mesh with the two first gears (16), and the damping shaft (4) is fixedly connected to one of the two second gears (18).

4. A dual-position adjustable downward-pressing handrail according to claim 3, characterized in that: The buckling device includes two push rod motors (13), two locking blocks (17) and two locking pins (19). Two first gears (16) are fixedly connected to the two locking blocks (17) respectively. The two push rod motors (13) are both mounted on the fixed frame (5). The output shafts of the two push rod motors (13) are fixedly connected to the two locking pins (19) respectively. The two locking pins (19) cooperate with the two locking blocks (17) respectively.

5. A dual-position adjustable downward-pressing handrail according to claim 4, characterized in that: The lifting device includes two telescopic rods (14), a lifting frame (3) and a control system (8). The two ends of the two telescopic rods (14) are fixedly connected to the fixed frame (5) and the lifting frame (3) respectively, and the control system (8) is installed on the lifting frame (3).

6. A dual-position adjustable downward-pressing handrail according to claim 5, characterized in that: The screw transmission mechanism includes a forward and reverse motor (9), a screw (12) and a connecting rod (11). The forward and reverse motor (9) is installed at the bottom of the lifting frame (3). The output shaft of the forward and reverse motor (9) is fixedly connected to the screw (12). The screw (12) is threadedly connected to the connecting rod (11). The connecting rod (11) is fixedly connected to the fixed frame (5).

7. A dual-position adjustable downward-pressing handrail according to claim 6, characterized in that: The fixing device includes two fixing plates (6) and four fixing bolts (7). The two fixing plates (6) are fixedly connected to both sides of the lifting frame (3) respectively, and the four fixing bolts (7) are threadedly connected to the two fixing plates (6) respectively.

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