Telescopic device and vehicle

Abstract

A telescopic device and a vehicle. The telescopic device (10) comprises: a first mounting assembly (100); a second mounting assembly (200); a scissor mechanism (300), the first mounting assembly (100) and the second mounting assembly (200) being arranged on opposite sides of the scissor mechanism (300), and the scissor mechanism (300) drivingly connecting the first mounting assembly (100) and the second mounting assembly (200) to enable the first mounting assembly (100) and the second mounting assembly (200) to move close to or away from each other; and a first supporting mechanism (400), which is connected to the scissor mechanism (300) at one end, and is movably connected to the first mounting assembly (100) at the other end, so as to support the scissor mechanism (300) in the direction of gravity. In the telescopic device, the first supporting mechanism is provided to connect the scissor mechanism and the first mounting assembly, so that the first supporting mechanism provides a supporting force for the scissor mechanism in the direction of gravity, so as to reduce the possibility of bending and deformation of the scissor mechanism and the entire telescopic device, which can ensure the normal operation of the telescopic device and prolong the service life of the telescopic device.

Description

Telescopic device and vehicle

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on January 12, 2024, with application number 202410054082.1, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of vehicle technology, and in particular to a telescopic device and a vehicle. Background Art

[0003] With technological advancements and improvements in people's living standards, cars have evolved from simple means of transportation to comprehensive vehicles that integrate travel, leisure, and entertainment. Diversification of vehicle functions has become a new trend. Among these, enhancing the comfort of customers' temporary rest periods has become a key concern.

[0004] In order to provide a larger rest space for users, a vehicle currently has a drawer-type expansion compartment provided on the side, which expands the lateral space of the vehicle by extending the expansion compartment.

[0005] However, this drawer-type expansion cabin takes up a large amount of space in the vehicle when it is retracted. Technical issues

[0006] The main purpose of this application is to provide a telescopic device, aiming to provide a telescopic device that occupies less space. Technical Solutions

[0007] To achieve the above objectives, the telescopic device proposed in this application includes:

[0008] First installation component;

[0009] Second installation component;

[0010] a scissor mechanism, wherein the first mounting assembly and the second mounting assembly are disposed on opposite sides of the scissor mechanism, and the scissor mechanism drives and connects the first mounting assembly and the second mounting assembly so that the first mounting assembly and the second mounting assembly move closer to or farther away from each other; and

[0011] A first supporting mechanism, wherein one end of the first supporting mechanism is connected to the scissor-type mechanism, and the other end of the first supporting mechanism is movably connected to the first mounting assembly to support the scissor-type mechanism in the direction of gravity.

[0012] In one embodiment, a first support groove is provided on a side of the first mounting assembly facing the scissor-type mechanism, and the first support mechanism includes a first bracket, one end of the first bracket is connected to the scissor-type mechanism, and the other end of the first bracket is slidably disposed in the first support groove, and the first bracket moves linearly along the first support groove under the drive of the scissor-type mechanism.

[0013] In one embodiment, the first support mechanism further includes a first rolling member, which is provided at an end of the first bracket away from the scissor mechanism, and the first rolling member is rotationally connected to the first bracket and rollingly connected to the inner wall of the first support groove.

[0014] In one embodiment, the telescopic device further includes a first support member, and the first support member is connected to the first mounting assembly to jointly form the first support groove.

[0015] In one embodiment, the telescopic device also includes a second supporting mechanism, one end of the second supporting mechanism is connected to the scissors-type mechanism, and the other end of the second supporting mechanism is movably connected to the second mounting assembly, and the first supporting mechanism and the second supporting mechanism cooperate to jointly support the scissors-type mechanism in the direction of gravity.

[0016] In one embodiment, the telescopic device further includes a second support member, and the second support member and the second mounting assembly together form a second support groove.

[0017] In one embodiment, the scissor mechanism comprises:

[0018] a first support arm, the first support arm having a first end and a second end, the first end being rotatably connected to the first mounting assembly, and the second end being slidably connected to the second mounting assembly;

[0019] a second support arm, rotatably connected to the first support arm, the second support arm having a third end and a fourth end, the third end being slidably connected to the first mounting assembly, and the fourth end being rotatably connected to the second mounting assembly;

[0020] Wherein, at least one of the first end and the third end is correspondingly connected to the first supporting mechanism.

[0021] In one embodiment, the first mounting assembly is provided with a first slide groove, the first end and the third end are both provided in the first slide groove, the scissors-type mechanism further includes a first limiting assembly, the first limiting assembly is provided in the first slide groove, and the scissors-type mechanism limits the displacement of the first end and / or the third end along the first slide groove through the first limiting assembly.

[0022] In one embodiment, the first limiting component includes:

[0023] a limiting member, slidably disposed in the first sliding groove; and

[0024] A fastener connects the limiting member and the first mounting assembly to position the limiting member in the first sliding groove.

[0025] In one embodiment, the scissor mechanism further comprises:

[0026] a rotating shaft, disposed at the third end; and

[0027] The second rolling member is sleeved on the outside of the rotating shaft, and the rotating shaft and the second rolling member can rotate relative to each other. The third end is rollingly connected to the first mounting assembly through the second rolling member.

[0028] In one embodiment, the first mounting assembly is provided with a first channel, the first sliding groove is communicated with the first channel, the rotating shaft is slidably provided in the first sliding groove, and the second rolling element is rollingly provided in the first channel.

[0029] In one embodiment, the first mounting assembly includes:

[0030] Mounting parts; and

[0031] The guide member is fixed to the side of the mounting member facing the scissor mechanism, the guide member is provided with the first sliding groove, and the mounting member and the guide member together surround and form the first channel.

[0032] In one embodiment, a second sliding groove is provided on the second mounting assembly, and the second end and the fourth end are both provided in the second sliding groove. The scissor mechanism further includes a second limiting assembly, and the second limiting assembly limits the second end and the fourth end.

[0033] The present application also proposes a vehicle, comprising:

[0034] The telescopic device mentioned above;

[0035] A vehicle body having an interior space and an opening communicating with the interior space; and

[0036] An expansion piece, one of the body and the expansion piece is provided with the first mounting assembly, and the other of the body and the expansion piece is provided with the second mounting assembly, and the expansion piece is caused to close the opening or move in a direction away from the interior space of the vehicle to open the opening through the movement of the telescopic device.

[0037] In one embodiment, the vehicle further includes a guide rail and a guide groove, wherein one of the vehicle body and the expansion member is provided with the guide rail, and the other of the vehicle body and the expansion member is provided with the guide groove corresponding to the guide rail, and the guide rail is slidably connected to the guide groove. Beneficial effects

[0038] A telescopic device in a technical solution of an embodiment of the present application includes a first mounting assembly, a second mounting assembly, a scissor mechanism, and a first supporting mechanism. The first mounting assembly and the second mounting assembly are arranged on opposite sides of the scissor mechanism. The scissor mechanism is movable to move the first mounting assembly and the second mounting assembly closer to or farther from each other. The first mounting assembly can be mounted on a first object, and the second mounting assembly can be mounted on a second object. Therefore, the telescopic device can drive the first object and the second object closer to or farther from each other. The scissor mechanism has a simple structure, a large load-bearing capacity, and high stability during the telescopic process. Moreover, when the first mounting assembly and the second mounting assembly are brought closer to each other, the scissor mechanism folds between the first mounting assembly and the second mounting assembly, and the entire telescopic device occupies a small space. Since the scissors-type mechanism is used parallel to the ground in this solution, when the second mounting assembly and the first mounting assembly are away from each other, the scissors-type mechanism extends longer between the first mounting assembly and the second mounting assembly. The second object and the second mounting assembly are affected by gravity, which will cause the entire telescopic device to have a tendency to bend and deform downward. In this solution, a first supporting mechanism is provided to connect the scissors-type mechanism and the first mounting assembly. The first supporting mechanism provides supporting force for the scissors-type mechanism in the direction of gravity, thereby reducing the possibility of bending and deformation of the scissors-type mechanism and the entire telescopic device, ensuring the normal operation of the telescopic device and extending the service life of the telescopic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0040] FIG1 is a structural schematic diagram of an embodiment of a telescopic device of the present application;

[0041] FIG2 is a second structural diagram of an embodiment of the telescopic device of the present application;

[0042] FIG3 is an exploded view of an embodiment of the telescopic device of the present application;

[0043] FIG4 is a schematic diagram of a partial structure of an embodiment of a vehicle of the present application;

[0044] FIG5 is a schematic diagram of a partial structure of an expansion component of the vehicle of the present application;

[0045] FIG6 is a schematic structural diagram of the expansion member and telescopic device of the vehicle of the present application.

[0046] Description of Figure Numbers:

[0047] Reference numeral name Reference numeral name 10 Telescopic device 100 First mounting assembly 101 First support groove 102 First channel 110 Mounting member 120 Guide member 121 First slide groove 200 Second mounting assembly 201 Second support groove 300 Scissor mechanism 310 First support arm 311 First end 312 Second end 320 Second support arm 321 Third end 322 Fourth end 330 First limiting assembly 331 Limiting member 332 Fastener 341 Rotating shaft 342 Second rolling member 350 Second limiting assembly 400 First supporting mechanism 410 First bracket 420 First rolling member 500 Second supporting mechanism 610 First support member 620 Second support member 20 Vehicle body 21 First mounting bracket 30 Extension member 31 Second mounting bracket

[0048] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. Modes for Carrying Out the Invention

[0049] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0050] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0051] In this application, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0052] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0053] The present application proposes a telescopic device.

[0054] 1 and 2 , FIG1 is a structural schematic diagram 1 of an embodiment of the telescopic device of the present application, and FIG2 is a structural schematic diagram 2 of an embodiment of the telescopic device of the present application.

[0055] In the embodiment of the present application, the telescopic device 10 includes:

[0056] First mounting assembly 100;

[0057] Second mounting assembly 200;

[0058] A scissor mechanism 300, wherein the first mounting assembly 100 and the second mounting assembly 200 are disposed on opposite sides of the scissor mechanism 300, and the scissor mechanism 300 drives and connects the first mounting assembly 100 and the second mounting assembly 200 to move the first mounting assembly 100 and the second mounting assembly 200 closer to or farther from each other; and

[0059] The first support mechanism 400 has one end connected to the scissor-type mechanism 300 , and the other end of the first support mechanism 400 is movably connected to the first mounting assembly 100 to support the scissor-type mechanism 300 in the direction of gravity.

[0060] A telescopic device 10 in a technical solution of an embodiment of the present application includes a first mounting assembly 100, a second mounting assembly 200, a scissor mechanism 300, and a first support mechanism 400. The first mounting assembly 100 and the second mounting assembly 200 are arranged on opposite sides of the scissor mechanism 300. The scissor mechanism 300 is movable to move the first mounting assembly 100 and the second mounting assembly 200 closer to or further away from each other. The first mounting assembly 100 can be mounted on a first object, and the second mounting assembly 200 can be mounted on a second object. Therefore, the telescopic device 10 can move the first object and the second object closer to or further away from each other. The scissor mechanism 300 has a simple structure, a large load-bearing capacity, and high stability during the telescopic process. Moreover, when the first mounting assembly 100 and the second mounting assembly 200 are closer to each other, the scissor mechanism 300 folds between the first mounting assembly 100 and the second mounting assembly 200, so that the entire telescopic device 10 occupies a small space. Since the scissors-fork mechanism 300 is used parallel to the ground in this solution, when the second mounting assembly 200 and the first mounting assembly 100 are away from each other, the scissors-fork mechanism 300 extends a longer length between the first mounting assembly 100 and the second mounting assembly 200. The second object and the second mounting assembly 200 are affected by gravity, which will cause the entire telescopic device 10 to have a tendency to bend and deform downward. In this solution, a first support mechanism 400 is provided to connect the scissors-fork mechanism 300 and the first mounting assembly 100. The first support mechanism 400 provides support force for the scissors-fork mechanism 300 in the direction of gravity, thereby reducing the possibility of bending and deformation of the scissors-fork mechanism 300 and the entire telescopic device 10, ensuring the normal operation of the telescopic device 10 and extending the service life of the telescopic device 10.

[0061] In one embodiment, a first support groove 101 is provided on the side of the first mounting assembly 100 facing the scissors-fork mechanism 300, and the first support mechanism 400 includes a first bracket 410, one end of the first bracket 410 is connected to the scissors-fork mechanism 300, and the other end of the first bracket 410 is slidably provided in the first support groove 101, and the first bracket 410 moves linearly along the first support groove 101 under the drive of the scissors-fork mechanism 300.

[0062] 1 and 3 , in this embodiment, a first support groove 101 is provided on the first mounting assembly 100, and the first support mechanism 400 includes a first bracket 410, one end of the first bracket 410 is connected to the scissors-fork mechanism 300, and the other end of the first bracket 410 is provided in the first support groove 101, so that the inner wall of the first support groove 101 supports the first bracket 410, and further supports the scissors-fork mechanism 300. The structure is simple, easy to implement and low in cost. On the other hand, the first support groove 101 can limit the first bracket 410, thereby enhancing the connection between the scissors-fork mechanism 300 and the first mounting assembly 100 and reducing the possibility of separation of the scissors-fork mechanism 300 and the first mounting assembly 100. When the scissor mechanism 300 is in motion, the first bracket 410 moves with the scissor mechanism 300, causing the first bracket 410 to move linearly within the first support slot 101. Regardless of whether the scissor mechanism 300 is static or dynamic, the first bracket 410 can provide continuous and stable support to the scissor mechanism 300, thereby reducing the possibility of bending and deformation of the scissor mechanism 300 and the entire telescopic device 10, ensuring the normal operation of the telescopic device 10 and extending the service life of the telescopic device 10. Specifically, in this embodiment, the opening of the first support slot 101 is oriented vertically. When the first bracket 410 moves within the first support slot 101, it may not only abut against the bottom wall of the first support slot 101, but also against the side walls of the first support slot 101. The abutment between the side walls of the first support slot 101 and the first bracket 410 can prevent the scissor mechanism 300 from rotating about the first mounting assembly 100, which is equivalent to preventing the scissor mechanism 300 from bending and deformation under the action of gravity, further extending the service life of the scissor mechanism 300 and the entire telescopic device 10.

[0063] In one embodiment, the first support mechanism 400 further includes a first rolling member 420, which is disposed at an end of the first bracket 410 away from the scissor mechanism 300, and the first rolling member 420 is rotatably connected to the first bracket 410 and rollingly connected to the inner wall of the first support groove 101; and / or,

[0064] The telescopic device 10 further includes a first support member 610 , which is connected to the first mounting assembly 100 to form a first support groove 101 .

[0065] In combination with Figures 1 and 3, in this embodiment, a first rolling member 420 is provided at the end of the first bracket 410 away from the scissors-type mechanism 300, and the first bracket 410 abuts against the inner wall of the first support groove 101 through the first rolling member 420. When the first bracket 410 performs a linear motion, the first rolling member 420 rolls inside the first support groove 101, reducing the friction resistance between the first support mechanism 400 and the first mounting assembly 100, so that the first support mechanism 400 can move more smoothly when performing a linear motion along the first support groove 101, thereby improving the smoothness of the telescopic device 10 during extension and retraction, and reducing the possibility of the telescopic device 10 getting stuck.

[0066] 1 and 3 , in this embodiment, the telescopic device 10 further comprises a first support member 610. The first support member 610 comprises a connecting portion, a supporting portion, and a limiting portion. The connecting portion is affixed to the mounting member 110 of the first mounting assembly 100. The supporting portion is connected to one end of the connecting portion and extends toward the second mounting assembly 200. The limiting portion is connected to the end of the supporting portion away from the connecting portion and extends toward the scissor mechanism 300. The limiting portion, the supporting portion, and the mounting member 110 collectively surround and form a first support groove 101. The structure is simple and easy to manufacture. The first support member 610 is an integral structure, with the connecting portion, the supporting portion, and the limiting portion formed by bending, resulting in a simple manufacturing method. The connecting portion can be fixed to the mounting member 110 by welding, screwing, or other means to ensure the connection strength between the first support member 610 and the first mounting assembly 100. The connecting portion and the limiting portion are located on opposite sides of the supporting portion, facilitating assembly between the connecting portion and the mounting member 110. The connecting portion also provides a certain degree of support for the supporting portion, reducing the possibility of deformation of the first support member 610 itself.

[0067] In one embodiment, the telescopic device 10 further includes a second support mechanism 500, one end of the second support mechanism 500 is connected to the scissors-type mechanism 300, and the other end of the second support mechanism 500 is movably connected to the second mounting assembly 200, and the first support mechanism 400 and the second support mechanism 500 cooperate to jointly support the scissors-type mechanism 300 in the direction of gravity.

[0068] 1 , in this embodiment, the telescopic device 10 further includes a second support mechanism 500, which connects the scissor mechanism 300 and the second mounting assembly 200. The second support mechanism 500 and the first support structure simultaneously provide support for the scissor mechanism 300 in the direction of gravity, further reducing the possibility of bending and deformation of the scissor mechanism 300 and the entire telescopic device 10, ensuring the normal operation of the telescopic device 10 and extending the service life of the telescopic device 10. Specifically, in this embodiment, a second support member 620 is also provided on the side of the second mounting assembly 200 facing the scissor mechanism 300. The second support member 620 and the second mounting assembly 200 together surround and form a second support groove 201. The first support mechanism 400 and the second support mechanism 500 are symmetrically arranged using the same structure, reducing the number of parts in the telescopic device 10 and improving the assembly efficiency and replaceability of the telescopic device 10.

[0069] In one embodiment, the scissor mechanism 300 includes:

[0070] A first support arm 310, the first support arm 310 having a first end 311 and a second end 312, the first end 311 being rotatably connected to the first mounting assembly 100, and the second end 312 being slidably connected to the second mounting assembly 200;

[0071] The second support arm 320 is rotatably connected to the first support arm 310. The second support arm 320 has a third end 321 and a fourth end 322. The third end 321 is slidably connected to the first mounting assembly 100, and the fourth end 322 is rotatably connected to the second mounting assembly 200.

[0072] At least one of the first end 311 and the third end 321 is correspondingly connected to the first supporting mechanism 400 .

[0073] 3 , in this embodiment, the scissor lift mechanism 300 includes a first support arm 310 and a second support arm 320, which are rotatably connected to each other. The first support arm 310 has a first end 311 and a second end 312, and the second support arm 320 has a third end 321 and a fourth end 322. The first end 311 is rotatably connected to the first mounting assembly 100, the third end 321 is slidably connected to the first mounting assembly 100, the fourth end 322 is rotatably connected to the second mounting assembly 200, and the second end 312 is slidably connected to the second mounting assembly 200. When the third end 321 slides close to the first end 311 and the second end 312 slides close to the fourth end 322, the telescopic device 10 extends, so that the first mounting assembly 100 and the second mounting assembly 200 move away from each other. When the third end 321 slides away from the first end 311 and the second end 312 slides away from the fourth end 322, the telescopic device 10 retracts, so that the first mounting assembly 100 and the second mounting assembly 200 move closer to each other. The structure is simple. A first support mechanism 400 may be provided at the first end 311. The first support mechanism 400 may be provided on either the side of the first end 311 facing the ground or the side of the first end 311 facing away from the ground. A second support mechanism 500 may also be provided at the third end 321. The second support mechanism 500 may be provided on either the side of the third end 321 facing the ground or the side of the third end 321 facing away from the ground. Specifically, in this embodiment, a first support mechanism 400 is provided on each of the upper and lower sides of the first end 311 and the upper and lower sides of the third end 321. A second support mechanism 500 is provided on each of the upper and lower sides of the second end 312 and the upper and lower sides of the fourth end 322. The four first support mechanisms 400 provide support between the scissor mechanism 300 and the first mounting assembly 100, while the four second support mechanisms 500 provide support between the scissor mechanism 300 and the second mounting assembly 200. This significantly reduces the possibility of deformation of the telescopic device 10 under the influence of gravity, improves the stability of the telescopic device 10 in various states, and further extends the service life of the telescopic device 10.

[0074] In one embodiment, the first mounting assembly 100 is provided with a first slide groove 121, and the first end 311 and the third end 321 are both slidably arranged in the first slide groove 121. The scissors-type mechanism 300 also includes a first limiting assembly 330, and the first limiting assembly 330 is arranged in the first slide groove 121. The scissors-type mechanism 300 limits the displacement of the first end 311 and / or the third end 321 along the first slide groove 121 through the first limiting assembly 330.

[0075] 3 , in this embodiment, the first mounting assembly 100 is provided with a first slide groove 121, with the first end 311 and the third end 321 both being located within the first slide groove 121. The first slide groove 121 guides the sliding movement of the third end 321, making the linear movement trajectory of the third end 321 more precise, thereby improving the smoothness of the movement of the scissor mechanism 300, thereby ensuring the smooth extension and retraction of the telescopic device 10 and reducing the possibility of the telescopic device 10 getting stuck. The scissor mechanism 300 also includes a first limiting assembly 330. The first limiting assembly 330 can be used to limit the first end 311 so that the first end 311 cannot slide along the first slide groove 121 and can only rotate within the first slide groove 121. The first limiting assembly 330 can also limit the travel of the third end 321 within the first slide groove 121, thereby adjusting the extension and folding travel of the scissor mechanism 300, and further adjusting the spacing range between the first mounting assembly 100 and the second mounting assembly 200, thereby adjusting the telescopic travel of the telescopic device 10. The first end 311 and the third end 321 utilize the same structural form to achieve a rotational connection between the first end 311 and the first mounting assembly 100, and a sliding connection between the third end 321 and the first mounting assembly 100. This reduces the number of component types in the telescopic device 10 and improves the assembly efficiency and replaceability of the telescopic device 10. The first position-limiting assembly 330 can be connected to the first mounting assembly 100 through a snap-on or screw-on connection, allowing the position of the first position-limiting assembly 330 on the first mounting assembly 100 to be adjusted or fixed. When the first position-limiting assembly 330 is fixed to the first mounting assembly 100, it can prevent the first end 311 or the third end 321 from sliding along the first slide groove 121. Specifically in this embodiment, a second slide groove is also provided on the second mounting assembly 200, and the second end 312 and the fourth end 322 are both provided in the second slide groove. The scissor-fork mechanism 300 also includes a second limiting assembly 350. The second limiting assembly 350 uses the same structural form as the first limiting assembly 330 to limit the second end 312 and the fourth end 322, thereby improving the interchangeability of the telescopic device 10; through the cooperation of the first slide groove 121 and the first limiting assembly 330 and the cooperation of the second slide groove and the second limiting assembly 350, the four ends of the scissor-fork mechanism 300 can be arbitrarily changed to rotate or slide, and it is also more convenient to adjust the folding and unfolding stroke of the scissor-fork mechanism 300, so that the telescopic device 10 can meet more telescopic distance requirements and expand the applicable scenarios of the telescopic device 10.

[0076] In one embodiment, the first limiting component 330 includes:

[0077] The limiting member 331 is slidably disposed in the first sliding groove 121; and

[0078] The fastener 332 connects the limiting member 331 and the first installation assembly 100 to position the limiting member 331 in the first sliding groove 121 .

[0079] 1 and 3 , in this embodiment, the first position-limiting assembly 330 includes a position-limiting member 331 and a fastener 332. The position-limiting member 331 is disposed in the first chute 121, and the fastener 332 can secure the position-limiting member 331 to the first mounting assembly 100. Specifically, in this embodiment, the position-limiting member 331 is a bolt, and the fastener 332 is a nut. First chute 121 is provided on both the upper and lower sides of the guide member 120. The bolt passes through the guide member 120 through these two first chute 121. When the nut is tightened on the bolt, the nut and the bolt head clamp the guide member 120, thereby achieving the positioning of the first position-limiting assembly 330 itself, thereby limiting the travel of the first end 311 or the third end 321 within the first chute 121. This has a simple structure, low cost, and is easy to implement.

[0080] In one embodiment, the scissor mechanism 300 further includes:

[0081] A rotating shaft 341 is provided at the third end 321; and

[0082] The second rolling member 342 is sleeved on the outside of the rotating shaft 341 , and the rotating shaft 341 and the second rolling member 342 can rotate relative to each other. The third end 321 is rollingly connected to the first installation assembly 100 through the second rolling member 342 .

[0083] In combination with Figures 1 and 3, in this embodiment, the scissor-type fork mechanism 300 also includes a rotating shaft 341 and a second rolling member 342. The rotating shaft 341 is arranged at the third end 321 and is inserted into the first slide groove 121. The second rolling member 342 is sleeved on the rotating shaft 341. The third end 321 abuts against the first mounting assembly 100 through the second rolling member 342. The third end 321 slides along the first slide groove 121 by rolling along the first mounting assembly 100 by the second rolling member 342, thereby reducing the friction resistance between the third end 321 and the first mounting assembly 100, so that the third end 321 slides more smoothly along the first mounting assembly 100, thereby improving the smoothness of the scissor-type fork mechanism 300, and then improving the smoothness of the telescopic device 10 when extending and retracting, and reducing the possibility of the telescopic device 10 getting stuck. Specifically, in this embodiment, the first end 311, the second end 312, the third end 321, and the fourth end 322 are all provided with a rotating shaft 341 and a second rolling element 342. This ensures smooth sliding when the four ends of the scissor mechanism 300 rotate and slide in a variable manner. Furthermore, the identical configuration of the four ends reduces the manufacturing difficulty of the scissor mechanism 300. The first support mechanism 400 and the second support mechanism 500 are provided on the corresponding rotating shaft 341. For example, the third end 321 is used as an example. When the third end 321 slides relative to the first mounting assembly 100, the rotating shaft 341 on the third end 321 moves with the third end 321, causing the second rolling element 342 on the rotating shaft 341 to roll along the first mounting assembly 100. The first bracket 410 on the rotating shaft 341 moves with the rotating shaft 341, causing the first rolling element 420 on the first bracket 410 to roll along the first support member 610.

[0084] In one embodiment, the first installation assembly 100 is provided with a first channel 102 , the first sliding groove 121 is connected to the first channel 102 , the rotating shaft 341 is slidably disposed in the first sliding groove 121 , and the second rolling element 342 is rollingly disposed in the first channel 102 .

[0085] In combination with Figures 1 and 3, in this embodiment, the first mounting assembly 100 is provided with a first channel 102, and the second rolling member 342 rolls inside the first channel 102. The first channel 102 has two opposite vertical inner walls. When the telescopic device 10 is extended, the second rolling member 342 rolls along one of the vertical inner walls. When the telescopic device 10 is retracted, the second rolling member 342 rolls along the other vertical inner wall, ensuring that the second rolling member 342 can roll along the first mounting assembly 100 regardless of whether the telescopic device 10 is extended or retracted, thereby ensuring the smoothness of the telescopic device 10's extension and retraction.

[0086] In one embodiment, the first mounting assembly 100 includes:

[0087] Mounting member 110; and

[0088] The guide member 120 is fixed to the side of the mounting member 110 facing the scissor mechanism 300 . The guide member 120 is provided with a first sliding groove 121 . The mounting member 110 and the guide member 120 are together surrounded to form the first channel 102 .

[0089] 1 and 3 , in this embodiment, the first mounting assembly 100 includes a mounting member 110 and a guide member 120. The guide member 120 is bent to form an open slot, the periphery of the opening being fixed to the mounting member 110, thereby forming a first channel 102. This structure is simple and easy to implement. First chutes 121 are provided on both the upper and lower sides of the first channel 102. The rotating shaft 341 passes through the two first chutes 121 and is installed in the guide member 120. This ensures the stability of the second rolling member 342 in rolling within the first channel 102 while facilitating assembly of the first support mechanism 400. Specifically in this embodiment, the mounting member 110 is bent to form a recess, which is recessed in the direction away from the second mounting component 200. The guide member 120 is arranged in the recess, and the support member is arranged outside the recess, so that the distance between the two opposite second rolling members 342 respectively provided on the first mounting component 100 and the second mounting component 200 is greater than the distance between the first support mechanism 400 and the second support mechanism 500, so that the first support mechanism 400 and the second support mechanism 500 can play a better supporting role, the telescopic device 10 is less likely to be deformed by gravity, and the structure of the entire telescopic device 10 is more compact and occupies less space.

[0090] In this embodiment, the first support arm 310 is provided with a receiving space. When the first mounting assembly 100 and the second mounting assembly 200 are close to each other, the first support arm 310 can receive the second support arm 320 inside the receiving space, so that the first mounting assembly 100 is closer to the second mounting assembly 200, and the structure of the entire telescopic device 10 is more compact and occupies less space.

[0091] The present application also proposes a vehicle, comprising:

[0092] The telescopic device 10 mentioned above;

[0093] The vehicle body 20 is provided with an interior space and an opening communicating with the interior space; and

[0094] The extension piece 30, one of the body 20 and the extension piece 30 is provided with a first mounting assembly 100, and the other of the body 20 and the extension piece 30 is provided with a second mounting assembly 200. The extension piece 30 is closed by the movement of the telescopic device 10 or moved in a direction away from the interior space of the vehicle to open the opening.

[0095] Referring to FIG4 , the specific structure of the telescopic device 10 is similar to that of the above-mentioned embodiments. Since the present vehicle utilizes all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought about by the technical solutions of the above-mentioned embodiments, which will not be described in detail here. The present vehicle can be a commercial vehicle or a recreational vehicle. The telescopic device 10 connects the vehicle body 20 and the expansion member 30. On the one hand, it can drive the expansion member 30 away from the vehicle interior space, opening the vehicle interior space, expanding the size of the vehicle interior space, and providing a more spacious resting space for the user. On the other hand, the structure is simple, and the telescopic device 10 occupies less space in the vehicle interior. Furthermore, the telescopic device 10 has a strong vertical support force and is not easily deformed. When the expansion member 30 moves away from the opening, the possibility and degree of falling due to gravity are both low. When the expansion member 30 moves toward the opening, the expansion member 30 and the opening are less likely to misalign. The opening and expansion member 30 can be located at the rear of the vehicle to expand the space in the vehicle's length direction, or at the side of the vehicle to expand the space in the vehicle's width direction. A first mounting bracket 21 is provided on the vehicle body 20, and the first mounting assembly 100 is connected to the first mounting bracket 21; a second mounting bracket 31 is provided on the extension member 30. Referring to Figures 5 and 6, the second mounting bracket 31 includes two mounting seats and a mounting plate. The two mounting seats are provided at both ends of the mounting member 110, and the mounting plate is provided in the middle of the mounting member 110, so that the telescopic device 10 is fixed more firmly and the force is more evenly distributed; the mounting seats are provided with grooves corresponding to the mounting member 110, and the side of the mounting member 110 facing away from the guide member 120 is fixed to the mounting seats, so that the telescopic device 10 is fixed more firmly. Specifically in this embodiment, the extension member 30 is a vehicle door, but the user does not enter or exit the vehicle through this door. The manufacturing process of the vehicle door is mature, and the sealing performance between the vehicle door and the opening is good. The vehicle door can seal the opening more tightly without affecting the aesthetics of the vehicle.

[0096] In one embodiment, the vehicle further includes a guide rail and a guide groove. One of the vehicle body 20 and the expansion member 30 is provided with a guide rail, and the other corresponding guide rail of the vehicle body 20 and the expansion member 30 is provided with a guide groove. The guide rail and the guide groove are slidably connected.

[0097] In this embodiment, the vehicle further includes guide rails and guide grooves, which guide the extension piece 30 so that the extension piece 30 has a more precise trajectory when moving away from or approaching the interior of the vehicle. The guide rails and guide grooves can also provide a certain amount of support for the extension piece 30, further reducing the possibility of the extension piece 30 falling due to gravity after being extended. Specifically, in this embodiment, the end of the extension piece 30 close to the ground is connected to the vehicle body 20 via the guide rails and guide grooves, and the end of the extension piece 30 away from the ground is connected to the vehicle body 20 via the telescopic device 10. On the one hand, this makes the force applied to the extension piece 30 more uniform after being extended. On the other hand, this arrangement occupies less space in the vehicle interior, which can provide more space for arranging other components or for user activities.

[0098] The above description is merely an embodiment of the present application and does not limit the patent scope of the present application. All equivalent structural transformations made using the contents of the present application specification and drawings under the inventive concept of the present application, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A telescopic device, wherein, The telescopic device includes: A first mounting component; A second mounting component; A scissor mechanism, the first mounting component and the second mounting component are arranged on opposite sides of the scissor mechanism, and the scissor mechanism is drivingly connected to the first mounting component and the second mounting component to move the first mounting component and the second mounting component closer to or farther away from each other; and A first support mechanism, one end of the first support mechanism is connected to the scissor mechanism, and the other end of the first support mechanism is movably connected to the first mounting component to support the scissor mechanism in the direction of gravity.

2. The telescopic device according to claim 1, wherein, A first support groove is provided on the side of the first mounting component facing the scissor mechanism. The first support mechanism includes a first bracket. One end of the first bracket is connected to the scissor mechanism, and the other end of the first bracket is slidably arranged in the first support groove, and the first bracket moves linearly along the first support groove under the drive of the scissor mechanism.

3. The telescopic device according to claim 2, wherein, The first support mechanism further includes a first rolling member. The first rolling member is arranged at the end of the first bracket away from the scissor mechanism. The first rolling member is rotatably connected to the first bracket and is in rolling connection with the inner wall of the first support groove.

4. The telescopic device according to claim 2, wherein, The telescopic device further includes a first support member, and the first support member is connected to the first mounting component to jointly enclose the first support groove.

5. The telescopic device according to claim 1, wherein, The telescopic device further includes a second support mechanism. One end of the second support mechanism is connected to the scissor mechanism, and the other end of the second support mechanism is movably connected to the second mounting component. The first support mechanism and the second support mechanism cooperate to jointly support the scissor mechanism in the direction of gravity.

6. The telescopic device according to claim 1, wherein, The telescopic device further includes a second support member, and the second support member and the second mounting component jointly enclose a second support groove.

7. The telescopic device according to claim 1, wherein, The scissor mechanism includes: A first support arm having a first end and a second end. The first end is rotatably connected to the first mounting component, and the second end is slidably connected to the second mounting component; A second support arm rotatably connected to the first support arm. The second support arm has a third end and a fourth end. The third end is slidably connected to the first mounting component, and the fourth end is rotatably connected to the second mounting component; Wherein, at least one of the first end and the third end is correspondingly connected to the first support mechanism.

8. The telescopic device according to claim 7, wherein, The first mounting component is provided with a first chute. The first end and the third end are both arranged in the first chute. The scissor mechanism further includes a first limiting component arranged in the first chute. The scissor mechanism restricts the displacement of the first end and / or the third end along the first chute through the first limiting component.

9. The telescopic device according to claim 8, wherein, The first limiting component includes: A limiting member slidably arranged in the first chute; and A fastening member connecting the limiting member and the first mounting component to position the limiting member in the first chute.

10. The telescopic device according to claim 8, wherein, The scissor mechanism further includes: A rotating shaft arranged at the third end; and A second rolling member is sleeved outside the rotating shaft, and the rotating shaft and the second rolling member rotate relative to each other. The third end is in rolling connection with the first mounting assembly through the second rolling member.

11. The telescopic device according to claim 10, wherein, The first mounting assembly is provided with a first channel, the first chute is communicated with the first channel, the rotating shaft is slidably disposed through the first chute, and the second rolling member is rotatably disposed in the first channel.

12. The telescopic device according to claim 11, wherein, The first mounting assembly includes: a mounting member; and a guiding member fixed to a side of the mounting member facing the scissors mechanism. The guiding member is provided with the first chute, and the mounting member and the guiding member jointly enclose to form the first channel.

13. The telescopic device according to claim 7, wherein, A second chute is provided on the second mounting assembly. The second end and the fourth end are both disposed in the second chute. The scissors mechanism further includes a second limiting assembly for limiting the second end and the fourth end.

14. A vehicle, wherein, The vehicle includes: a telescopic device according to any one of claims 1 to 13; a vehicle body provided with an interior space and an opening communicating with the interior space; and an expansion member, one of the vehicle body and the expansion member is provided with the first mounting assembly, and the other of the vehicle body and the expansion member is provided with the second mounting assembly. By the movement of the telescopic device, the expansion member closes the opening or moves away from the interior space to open the opening.

15. The vehicle according to claim 14, wherein, The vehicle further includes a guide rail and a guide groove. One of the vehicle body and the expansion member is provided with the guide rail, and the other of the vehicle body and the expansion member is provided with the guide groove corresponding to the guide rail. The guide rail is slidably connected with the guide groove.

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