A telescopic door inner closing handle

Abstract

The present invention discloses a retractable inner door closing handle, belonging to the field of transportation vehicles. A retractable inner door closing handle includes: a vehicle door and a vehicle body pillar, the vehicle door and the vehicle body pillar are rotatably connected by a hinge, and further includes: a transfer mechanism rotatably arranged inside the vehicle door; a first pull rope fixedly arranged between the transfer mechanism and the vehicle body pillar; a main body structure arranged inside the vehicle door; a second pull rope fixedly arranged between the transfer mechanism and the main body structure; a handle body arranged on the vehicle door; a telescopic assembly arranged between the handle body and the main body structure; when the vehicle door is opened, the first pull rope drives the telescopic assembly on the main body structure to push out the handle body through the transfer mechanism and the second pull rope; the present invention effectively improves the comfort of the driver and passengers when closing the door, and at the same time can increase the maximum opening angle of the vehicle door, effectively improving the comfort of the driver and passengers when getting in and out of the vehicle.

Description

Technical Field

[0001] The present invention relates to the technical field of transportation tools, and particularly to a retractable inner door handle. Background Art

[0002] An inner door handle refers to a handle used for a driver or passenger to pull when closing the door inside the vehicle door. The inner door handle provides better convenience for the driver and passengers. In order to facilitate closing the door, a retractable inner door handle is thus required.

[0003] Currently, relatively high-end vehicles are equipped with electric mechanisms for convenience, while such mechanisms are less used in low-end products.

[0004] In the prior art, high-end products have electric mechanisms, which are costly. Low-end products do not have such mechanisms. After the driver and passengers are seated, they directly close the door. The opening angle of the door is set within the comfortable range for closing the door, resulting in limited space for people to pass through and inconvenience in getting in and out. When a larger opening angle is set, the comfort of closing the door will be affected to a certain extent. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a retractable inner door handle that can overcome or at least partially solve the above problems.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A retractable inner door handle, comprising: a vehicle door and a vehicle body pillar, the vehicle door and the vehicle body pillar are rotatably connected by a hinge, and further comprising: a transfer mechanism rotatably arranged inside the vehicle door; a first pull rope fixedly arranged between the transfer mechanism and the vehicle body pillar; a main body structure arranged inside the vehicle door; a second pull rope fixedly arranged between the transfer mechanism and the main body structure; a handle body arranged on the vehicle door; a telescopic assembly arranged between the handle body and the main body structure; when the vehicle door is opened, the first pull rope drives the telescopic assembly on the main body structure to push out the handle body through the transfer mechanism and the second pull rope.

[0008] To facilitate driving a multi-stage telescopic rod, preferably, the transfer mechanism includes a first rotating shaft rotatably arranged inside the vehicle door, a first winding disc and a second winding disc are symmetrically and fixedly connected to the first rotating shaft, the first pull rope is fixedly arranged on the first winding disc, and the second pull rope is fixedly arranged on the second winding disc.

[0009] To facilitate fixing the first pull rope, preferably, a support plate is fixedly connected to the vehicle body pillar, a screw rod is fixedly connected to the support plate, a nut is threadedly connected to the screw rod, a connection buckle is fixedly connected to one end of the first pull rope close to the vehicle body pillar, and the connection buckle is matched with the screw rod.

[0010] To facilitate the telescopic movement of the handle body, preferably, the main body structure includes a second rotating shaft rotatably disposed inside the vehicle door. A third winding disc matching the second winding disc is provided on the second rotating shaft. One end of the second pulling rope away from the second winding disc is fixedly connected to the third winding disc. A spring box matching the second rotating shaft is fixedly connected inside the vehicle door. The spring box is connected to the second rotating shaft by a spring. A first driving part matching the second rotating shaft is fixedly connected inside the vehicle door. A winding box is fixedly connected inside the vehicle door. An elastic steel plate is connected to the winding box by a spring. The elastic steel plate is used to drive the telescopic assembly to telescope. The first driving part is used to drive the elastic steel plate to extend and retract.

[0011] To facilitate the telescopic movement of the elastic steel plate, preferably, the first driving part includes a gearbox fixedly disposed inside the vehicle door. One end of the second rotating shaft matches the gearbox. Friction wheels are symmetrically arranged at the output end of the gearbox. The elastic steel plate is arranged between the two friction wheels. Matching arc-shaped bends are provided on the two friction wheels.

[0012] To facilitate the limitation of the elastic steel plate, preferably, limiting tracks are symmetrically and fixedly connected to the gearbox.

[0013] To facilitate the telescopic movement of the handle body, preferably, the telescopic assembly includes a multi-stage telescopic rod fixedly disposed on the limiting track. One end of the multi-stage telescopic rod away from the limiting track is fixedly connected to the handle body. One end of the elastic steel plate away from the winding box is arranged inside the multi-stage telescopic rod, and the elastic steel plate is fixedly connected to the output end of the multi-stage telescopic rod.

[0014] To facilitate the improvement of the sealing performance of the vehicle door, preferably, a sealing block is provided at one end of the vehicle door close to the vehicle body pillar. A first sliding rod and a second sliding rod are symmetrically arranged on the sealing block. A first sleeve and a second sleeve are symmetrically and fixedly connected inside the vehicle door. The first sliding rod is slidably arranged inside the first sleeve. A first spring is fixedly connected between the first sliding rod and the first sleeve. The second sliding rod is slidably arranged inside the second sleeve.

[0015] To facilitate the prevention of the first pulling rope from loosening and curling, preferably, the first sliding rod is hermetically slidable inside the first sleeve. A first cavity is arranged inside the first sleeve. A tensioning sleeve is fixedly connected to one end of the first sleeve away from the vehicle body pillar. A tensioning sliding rod is hermetically slidable inside the tensioning sleeve. A connecting pipe is fixedly connected between the top of the tensioning sleeve and the first cavity. A tension spring is fixedly connected to one end of the tensioning sliding rod away from the tensioning sleeve. A limiting ring matching the first pulling rope is fixedly connected to one end of the tension spring away from the tensioning sliding rod. A limiting sleeve matching the first winding disc is fixedly connected inside the vehicle door, and the limiting sleeve matches the first pulling rope.

[0016] To facilitate cooling the first pull rope, preferably, a first air jet pipe is provided on one side of the second sleeve close to the vehicle body pillar. The first air jet pipe is matched with the first pull rope outside the vehicle door. A second air jet pipe is provided at one end of the second sleeve away from the vehicle body pillar. The second air jet pipe is matched with the end of the first pull rope inside the vehicle door.

[0017] Compared with the prior art, the present invention provides a telescopic in-door door handle, which has the following beneficial effects:

[0018] 1. For this telescopic in-door door handle, when the vehicle door rotates along the axis of the hinge, at this time, the distance between the first rotating shaft and the vehicle body pillar increases. The first pull rope is pulled by the vehicle body pillar. The first pull rope drives the first rotating shaft to rotate through the first winding disc. The first rotating shaft drives the second winding disc to rotate. The second winding disc winds the second pull rope. The second pull rope drives the telescopic assembly to extend through the main body structure. The telescopic assembly pushes out the handle body, so that the handle body moves towards the driver and passenger, thereby making the handle body closer to the driver and passenger. When closing the vehicle door, the driver and passenger can directly pull the handle body to close the vehicle door. After the vehicle door is closed, the first pull rope becomes slack. The telescopic assembly is driven to retract through the main body structure, and the handle body is received at the vehicle door, effectively improving the comfort of the driver and passenger when closing the door. At the same time, the maximum opening angle of the vehicle door can be increased, effectively improving the comfort of the driver and passenger getting in and out of the vehicle.

[0019] 2. For this telescopic in-door door handle, the second pull rope drives the second rotating shaft to rotate through the third winding disc. The second rotating shaft stores energy through the spring box. The second rotating shaft drives two friction wheels to rotate through the gearbox. The two friction wheels squeeze the elastic steel plate and pull the elastic steel plate out of the winding box, so that the elastic steel plate slides out of the limit track. The elastic steel plate pushes the multi-stage telescopic rod towards the driver and passenger, making the handle body closer to the driver and passenger, effectively improving the portability of the driver and passenger when closing the door.

[0020] 3. For this telescopic in-door door handle, the sealing block drives the second sliding rod to slide sealingly in the second sleeve, so that the gas in the second sleeve is respectively ejected through the first air jet pipe and the second air jet pipe to cool the first pull rope, effectively preventing the influence of the heat generated by the friction between the first pull rope and the vehicle door on the first pull rope.

[0021] The parts not involved in this device are the same as or can be implemented by the prior art. The present invention effectively improves the comfort of the driver and passenger when closing the door. At the same time, the maximum opening angle of the vehicle door can be increased, effectively improving the comfort of the driver and passenger getting in and out of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic structural diagram of a telescopic in-door door handle proposed by the present invention;

[0023] Figure 2 An enlarged schematic view of the position A in a Figure 1 retractable inner door closing handle proposed by the present invention;

[0024] Figure 3 A cross-sectional schematic view of a retractable inner door closing handle proposed by the present invention Figure 1 ;

[0025] Figure 4 An enlarged schematic view of the position B in a Figure 3 retractable inner door closing handle proposed by the present invention;

[0026] Figure 5 An enlarged schematic view of the position C in a Figure 3 retractable inner door closing handle proposed by the present invention;

[0027] Figure 6 An enlarged schematic view of the position D in a Figure 3 retractable inner door closing handle proposed by the present invention;

[0028] Figure 7 A schematic view of the structure of the retractable inner door closing handle of the present invention in the door closed state;

[0029] Figure 8 A schematic view of the structure of the retractable inner door closing handle of the present invention in the door open state;

[0030] Figure 9 A cross-sectional schematic view of a retractable inner door closing handle proposed by the present invention Figure 2 。

[0031] In the figure: 1. Door; 101. Body pillar; 102. Support plate; 103. Screw; 104. Nut; 105. Hinge; 2. First pulling rope; 201. Connecting buckle; 202. First rotating shaft; 203. First winding disc; 204. Second winding disc; 205. Second pulling rope; 3. Second rotating shaft; 301. Third winding disc; 302. Spring box; 303. Gearbox; 304. Friction wheel; 305. Winding box; 306. Elastic steel plate; 307. Arc bending; 4. Limit track; 401. Multistage telescopic rod; 402. Handle body; 5. First sleeve; 501. First sliding rod; 502. Sealing block; 503. First spring; 504. First cavity; 505. Connecting pipe; 506. Tensioning sleeve; 507. Tensioning sliding rod; 508. Pulling spring; 509. Limit ring; 6. Second sleeve; 601. Second sliding rod; 602. First air jet pipe; 603. Second air jet pipe; 604. Limit sleeve. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0033] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0034] Embodiment 1: Refer to Figures 1-9 , a retractable inner door handle, comprising: a vehicle door 1 and a vehicle body pillar 101, the vehicle door 1 and the vehicle body pillar 101 are rotatably connected by a hinge 105, and further comprising: a transfer mechanism rotatably arranged inside the vehicle door 1; a first cable 2 fixedly arranged between the transfer mechanism and the vehicle body pillar 101; a main body structure arranged inside the vehicle door 1; a second cable 205 fixedly arranged between the transfer mechanism and the main body structure; a handle body 402 arranged on the vehicle door 1; a telescopic assembly arranged between the handle body 402 and the main body structure; when the vehicle door 1 is opened, the first cable 2 drives the telescopic assembly on the main body structure through the transfer mechanism and the second cable 205 to push out the handle body 402.

[0035] The transfer mechanism includes a first rotating shaft 202 rotatably arranged inside the vehicle door 1, and a first winding disc 203 and a second winding disc 204 are symmetrically and fixedly connected to the first rotating shaft 202. The first cable 2 is fixedly arranged on the first winding disc 203, and the second cable 205 is fixedly arranged on the second winding disc 204.

[0036] A support plate 102 is fixedly connected to the vehicle body pillar 101, a screw 103 is fixedly connected to the support plate 102, a nut 104 is threadedly connected to the screw 103, and one end of the first cable 2 close to the vehicle body pillar 101 is fixedly connected with a connection buckle 201, and the connection buckle 201 is matched with the screw 103.

[0037] When the vehicle door 1 is opened, the vehicle door 1 rotates along the axis of the hinge 105. At this time, the distance between the first rotating shaft 202 and the vehicle body pillar 101 increases. The first cable 2 is pulled by the vehicle body pillar 101. The first cable 2 drives the first rotating shaft 202 to rotate through the first winding disc 203. The first rotating shaft 202 drives the second winding disc 204 to rotate. The second winding disc 204 winds the second cable 205. The second cable 205 drives the telescopic assembly to extend through the main body structure. The telescopic assembly pushes out the handle body 402, so that the handle body 402 moves towards the driver and passenger direction, and thus the handle body 402 approaches the driver and passenger;

[0038] When closing the vehicle door 1, the driver and passengers can directly pull the handle body 402 to close the vehicle door 1. After the vehicle door 1 is closed, the first pull rope 2 becomes slack, and the telescopic component is driven by the main body structure to retract, receiving the handle body 402 at the vehicle door 1, effectively improving the comfort of the driver and passengers when closing the door. At the same time, the maximum opening angle of the vehicle door 1 can be increased, effectively enhancing the comfort of the driver and passengers getting in and out of the vehicle.

[0039] Embodiment 2: Refer to Figures 1-9 , a telescopic inner door closing handle, which is basically the same as Embodiment 1. Further, the main body structure includes a second rotating shaft 3 rotatably arranged inside the vehicle door 1. A third winding disc 301 matching the second winding disc 204 is arranged on the second rotating shaft 3. One end of the second pull rope 205 away from the second winding disc 204 is fixedly connected to the third winding disc 301. A spring box 302 matching the second rotating shaft 3 is fixedly connected inside the vehicle door 1. The spring box 302 is spring-connected to the second rotating shaft 3. A first driving part matching the second rotating shaft 3 is fixedly connected inside the vehicle door 1. A winding box 305 is fixedly connected inside the vehicle door 1. An elastic steel plate 306 is spring-connected inside the winding box 305. The elastic steel plate 306 is used to drive the telescopic component to expand and contract. The first driving part is used to drive the elastic steel plate 306 to extend and retract.

[0040] The first driving part includes a gearbox 303 fixedly arranged inside the vehicle door 1. One end of the second rotating shaft 3 is matched with the gearbox 303. Friction wheels 304 are symmetrically arranged at the output end of the gearbox 303. The elastic steel plate 306 is arranged between the two friction wheels 304. Matching arc-shaped bends 307 are arranged on the two friction wheels 304.

[0041] Limit tracks 4 are symmetrically and fixedly connected to the gearbox 303.

[0042] The telescopic component includes a multi-stage telescopic rod 401 fixedly arranged on the limit track 4. One end of the multi-stage telescopic rod 401 away from the limit track 4 is fixedly connected to the handle body 402. One end of the elastic steel plate 306 away from the winding box 305 is arranged inside the multi-stage telescopic rod 401, and the elastic steel plate 306 is fixedly connected to the output end of the multi-stage telescopic rod 401.

[0043] When the second winding disc 204 rotates to wind the second pulling rope 205, the second pulling rope 205 drives the second rotating shaft 3 to rotate through the third winding disc 301. The second rotating shaft 3 stores energy through the spring box 302. The second rotating shaft 3 drives two friction wheels 304 to rotate through the gearbox 303. The two friction wheels 304 squeeze the elastic steel plate 306 and pull the elastic steel plate 306 out of the winding box 305, so that the elastic steel plate 306 slides out of the limiting track 4. The elastic steel plate 306 pushes the multi-stage telescopic rod 401 towards the driver and passenger, making the handle body 402 close to the driver and passenger, effectively improving the portability of the driver and passenger to close the door;

[0044] When the distance between the first rotating shaft 202 and the vehicle body column 101 becomes smaller when the vehicle door 1 is closed, at this time, the first pulling rope 2 is in a loose state. The second rotating shaft 3 releases the stored energy under the action of the spring box 302 to make the second rotating shaft 3 rotate in the reverse direction, drives the two friction wheels 304 to rotate in the reverse direction through the gearbox 303. The friction wheels 304 retract the elastic steel plate 306, and then wind up and store the elastic steel plate 306 through the spring mechanism in the winding box 305. The elastic steel plate 306 pulls the multi-stage telescopic rod 401 to contract, making the handle body 402 fit the vehicle door 1, effectively improving the comfort of the driver and passenger to close the door. At the same time, the maximum opening angle of the vehicle door 1 can be increased, effectively improving the comfort of the driver and passenger getting in and out of the vehicle.

[0045] It should be noted that the winding box 305 and the elastic steel plate 306 adopt the tape measure structure of the existing technology.

[0046] Embodiment 3: Refer to Figures 1-9 , a telescopic inner door handle, which is basically the same as Embodiment 1. Further, a sealing block 502 is provided at one end of the vehicle door 1 close to the vehicle body column 101. A first sliding rod 501 and a second sliding rod 601 are symmetrically provided on the sealing block 502. First sleeves 5 and second sleeves 6 are symmetrically and fixedly connected inside the vehicle door 1. The first sliding rod 501 is slidably arranged in the first sleeve 5. A first spring 503 is fixedly connected between the first sliding rod 501 and the first sleeve 5. The second sliding rod 601 is slidably arranged in the second sleeve 6.

[0047] The first sliding rod 501 seals and slides in the first sleeve 5. A first cavity 504 is provided in the first sleeve 5. One end of the first sleeve 5 away from the vehicle body column 101 is fixedly connected with a tensioning sleeve 506. A tensioning sliding rod 507 is slidably sealed in the tensioning sleeve 506. A connecting pipe 505 is fixedly connected between the top of the tensioning sleeve 506 and the first cavity 504. One end of the tensioning sliding rod 507 away from the tensioning sleeve 506 is fixedly connected with a tension spring 508. One end of the tension spring 508 away from the tensioning sliding rod 507 is fixedly connected with a limiting ring 509 matching the first pulling rope 2. A limiting sleeve 604 matching the first winding disc 203 is fixedly connected inside the vehicle door 1, and the limiting sleeve 604 matches the first pulling rope 2.

[0048] When the vehicle door 1 is closed, the vehicle body pillar 101 squeezes the sealing block 502, and the sealing block 502 pushes the first slide bar 501 to slide into the first sleeve 5. At this time, the first slide bar 501 pumps the water in the tensioning sleeve 506 into the first cavity 504 through the connecting pipe 505, causing the tensioning slide bar 507 to slide into the tensioning sleeve 506. The tensioning slide bar 507 pulls the tension spring 508 to move upward, and the tension spring 508 pulls up the first pull rope 2 through the limiting ring 509, making the first pull rope 2 taut, effectively preventing the first pull rope 2 from loosening and curling. Moreover, when the spring box 302 causes the second rotating shaft 3 to rotate, the second pull rope 205 drives the first rotating shaft 202 to rotate, and the first rotating shaft 202 winds the first pull rope 2 through the first winding disc 203. At this time, the first pull rope 2 pulls the tension spring 508, making the tension spring 508 in a taut state;

[0049] It should be noted that the spring force between the spring box 302 and the second rotating shaft 3 is greater than the pulling force of the tension spring 508.

[0050] Example 4: Refer to Figures 1-9 , a telescopic inner door handle, which is basically the same as that in Example 1. Further, a first air jet pipe 602 is provided on one side of the second sleeve 6 close to the vehicle body pillar 101. The first air jet pipe 602 is matched with the first pull rope 2 outside the vehicle door 1. A second air jet pipe 603 is provided at one end of the second sleeve 6 away from the vehicle body pillar 101. The second air jet pipe 603 is matched with one end of the first pull rope 2 inside the vehicle door 1.

[0051] When the vehicle door 1 is opened and closed, under the action of the first spring 503, the sealing block 502 expands and contracts, and the sealing block 502 drives the second slide bar 601 to slide sealingly in the second sleeve 6, so that the gas in the second sleeve 6 is ejected through the first air jet pipe 602 and the second air jet pipe 603 respectively to cool the first pull rope 2, effectively preventing the heat generated by the friction between the first pull rope 2 and the vehicle door 1 from affecting the first pull rope 2.

[0052] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A telescopic inner door closing handle, comprising: A vehicle door (1) and a vehicle body pillar (101), the vehicle door (1) and the vehicle body pillar (101) being rotatably connected by a hinge (105), characterized in that it further comprises: A transfer mechanism rotatably arranged inside the vehicle door (1); A first pull rope (2) fixedly arranged between the transfer mechanism and the vehicle body pillar (101); A main body structure arranged inside the vehicle door (1); A second pull rope (205) fixedly arranged between the transfer mechanism and the main body structure; A handle body (402) arranged on the vehicle door (1); A telescopic assembly arranged between the handle body (402) and the main body structure; The transfer mechanism comprises a first rotating shaft (202) rotatably arranged inside the vehicle door (1), and a first winding disc (203) and a second winding disc (204) are symmetrically and fixedly connected to the first rotating shaft (202). The first pull rope (2) is fixedly arranged on the first winding disc (203), and the second pull rope (205) is fixedly arranged on the second winding disc (204); A support plate (102) is fixedly connected to the vehicle body pillar (101), and a screw rod (103) is fixedly connected to the support plate (102). One end of the first pull rope (2) close to the vehicle body pillar (101) is fixedly connected with a connection buckle (201), and the connection buckle (201) is matched with the screw rod (103); The main body structure comprises a second rotating shaft (3) rotatably arranged inside the vehicle door (1), and a third winding disc (301) matching the second winding disc (204) is arranged on the second rotating shaft (3). One end of the second pull rope (205) far from the second winding disc (204) is fixedly connected with the third winding disc (301); The telescopic assembly comprises a multi-stage telescopic rod (401) fixedly arranged on a limit track (4), and one end of the multi-stage telescopic rod (401) far from the limit track (4) is fixedly connected with the handle body (402); When the vehicle door (1) is opened, the vehicle door (1) rotates along the axis of the hinge (105). At this time, the distance between the first rotating shaft (202) and the vehicle body pillar (101) increases. The first pull rope (2) is pulled by the vehicle body pillar (101). The first pull rope (2) drives the first rotating shaft (202) to rotate through the first winding disc (203). The first rotating shaft (202) drives the second winding disc (204) to rotate. The second winding disc (204) winds the second pull rope (205). The second pull rope (205) drives the telescopic assembly to extend through the main body structure. The telescopic assembly pushes out the handle body (402) to move the handle body (402) towards the driver and passenger, so that the handle body (402) approaches the driver and passenger; When closing the vehicle door (1), the driver and passenger can directly pull the handle body (402) to close the vehicle door (1). After the vehicle door (1) is closed, the first pull rope (2) is slack, and the telescopic assembly is driven to retract through the main body structure to receive the handle body (402) at the vehicle door (1).

2. The telescopic door inner closing handle according to claim 1, characterized in that, A nut (104) is threadedly connected to the screw rod (103).

3. The telescopic door inner closing handle according to claim 2, characterized in that, A spring box (302) matching the second rotating shaft (3) is fixedly connected inside the vehicle door (1). The spring box (302) is connected to the second rotating shaft (3) by a spring. A first driving part matching the second rotating shaft (3) is fixedly connected inside the vehicle door (1). A winding box (305) is fixedly connected inside the vehicle door (1). An elastic steel plate (306) is connected to the winding box (305) by a spring. The elastic steel plate (306) is used to drive the telescopic assembly to expand and contract. The first driving part is used to drive the elastic steel plate (306) to extend and retract.

4. The telescopic door inner closing handle according to claim 3, characterized in that, The first driving part includes a gearbox (303) fixedly arranged inside the vehicle door (1). One end of the second rotating shaft (3) matches the gearbox (303). Friction wheels (304) are symmetrically arranged at the output end of the gearbox (303). The elastic steel plate (306) is arranged between the two friction wheels (304). Matching arc-shaped bends (307) are arranged on the two friction wheels (304).

5. A telescopic door inner closing handle according to claim 4, characterized in that, Limit tracks (4) are symmetrically and fixedly connected to the gearbox (303).

6. The telescopic inner closing handle of a door according to claim 5, characterized in that, One end of the elastic steel plate (306) away from the winding box (305) is arranged inside a multi-stage telescopic rod (401), and the elastic steel plate (306) is fixedly connected to the output end of the multi-stage telescopic rod (401).

7. A telescopic door inner closing handle according to claim 2, characterized in that, One end of the vehicle door (1) close to the vehicle body column (101) is provided with a sealing block (502). A first sliding rod (501) and a second sliding rod (601) are symmetrically arranged on the sealing block (502). A first sleeve (5) and a second sleeve (6) are symmetrically and fixedly connected inside the vehicle door (1). The first sliding rod (501) is slidably arranged inside the first sleeve (5). A first spring (503) is fixedly connected between the first sliding rod (501) and the first sleeve (5). The second sliding rod (601) is slidably arranged inside the second sleeve (6).

8. A telescopic door inner closing handle according to claim 7, characterized in that, The first sliding rod (501) is slidably sealed inside the first sleeve (5). A first cavity (504) is arranged inside the first sleeve (5). One end of the first sleeve (5) away from the vehicle body column (101) is fixedly connected with a tensioning sleeve (506). A tensioning sliding rod (507) is slidably sealed inside the tensioning sleeve (506). A connecting pipe (505) is fixedly connected between the top of the tensioning sleeve (506) and the first cavity (504). One end of the tensioning sliding rod (507) away from the tensioning sleeve (506) is fixedly connected with a tension spring (508). One end of the tension spring (508) away from the tensioning sliding rod (507) is fixedly connected with a limit ring (509) matching the first pull rope (2). A limit sleeve (604) matching the first winding disc (203) is fixedly connected inside the vehicle door (1), and the limit sleeve (604) matches the first pull rope (2).

9. A telescopic door inner closing handle according to claim 7, characterized in that, On one side of the second sleeve (6) close to the vehicle body pillar (101), a first air jet pipe (602) is provided, and the first air jet pipe (602) is matched with the first pull rope (2) on the outer side of the vehicle door (1). At one end of the second sleeve (6) away from the vehicle body pillar (101), a second air jet pipe (603) is provided, and the second air jet pipe (603) is matched with one end of the first pull rope (2) inside the vehicle door (1).

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