Telescopic device and vehicle

Abstract

A telescopic device and a vehicle. The telescopic device (10) includes: 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 provided at opposite sides of the scissor mechanism (300), and the scissor mechanism (300) being drivingly connected to the first mounting assembly (100) and the second mounting assembly (200) to make the first mounting assembly (100) and the second mounting assembly (200) approach or move away from each other; and a first supporting mechanism (400), one end of the first supporting mechanism (400) being connected to the scissor mechanism (300), and the other end of the first supporting mechanism (400) is movably connected to the first mounting assembly (100) to support the scissor mechanism (300) in the gravity direction. 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 gravity direction, thereby reducing the possibility of bending and deformation of the scissor mechanism and the entire telescopic device, and ensuring the normal operation of the telescopic device and prolonging the service life of the telescopic device.

Description

[0001] The present application claims priority to Chinese Patent Application No. 202410054082.1, filed to the China National Intellectual Property Administration on January 12, 2024, the entire contents of which are incorporated herein by reference.TECHNICAL FIELD

[0002] The present application relates to the technical field of vehicles, and in particular to a telescopic device and a vehicle.BACKGROUND

[0003] With the advancement of science and technology and the improvement of people's living standards, vehicles have evolved from a mere means of transportation into an integrated tool with multiple functions such as travel, leisure and entertainment, and the diversified development of vehicle functions has become a new trend. Improving the comfort of users for temporary rest has become a widely concerned aspect.

[0004] To provide users with a larger resting space, a drawer-type expansion cabin is provided at one side of the vehicle in related art, and the horizontal space of the vehicle is expanded by extending the expansion cabin.

[0005] However, such drawer-type expansion cabin occupies a large internal space of the vehicle when retracted.SUMMARY

[0006] The main objective of the present application is to provide a telescopic device, aiming to provide a telescopic device with a small occupied space.

[0007] To achieve the above objective, the telescopic device provided in the present application includes: a first mounting assembly; a second mounting assembly; a scissor mechanism, the first mounting assembly and the second mounting assembly being provided at opposite sides of the scissor mechanism, and the scissor mechanism being drivingly connected to the first mounting assembly and the second mounting assembly to make the first mounting assembly and the second mounting assembly approach or move away from each other; and a first supporting mechanism, one end of the first supporting mechanism being connected to the scissor mechanism, and the other end of the first supporting mechanism being movably connected to the first mounting assembly to support the scissor mechanism in a gravity direction.

[0008] In an embodiment, a side of the first mounting assembly facing the scissor mechanism is provided with a first supporting slot, the first supporting mechanism comprises a first bracket, one end of the first bracket is connected to the scissor mechanism, the other end of the first bracket is slidably provided in the first supporting slot, and the first bracket is driven by the scissor mechanism to move linearly along the first supporting slot.

[0009] In an embodiment, the first supporting mechanism further comprises a first rolling member provided at an end of the first bracket away from the scissor mechanism, and the first rolling member is rotatably connected to the first bracket and rollably connected to an inner wall of the first supporting slot.

[0010] In an embodiment, the telescopic device further includes a first supporting member, and the first supporting member is connected to the first mounting assembly to jointly enclose to form the first supporting slot.

[0011] In an embodiment, the telescopic device further includes a second supporting mechanism, one end of the second supporting mechanism is connected to the scissor mechanism, the other end of the second supporting mechanism is movably connected to the second mounting assembly, and the first supporting mechanism is cooperated with the second supporting mechanism to jointly support the scissor mechanism in the gravity direction.

[0012] In an embodiment, the telescopic device further includes a second supporting member connected to the second mounting assembly to jointly enclose to form a second supporting slot.

[0013] In an embodiment, the scissor mechanism includes: a first supporting arm provided with a first end rotatably connected to the first mounting assembly and a second end slidably connected to the second mounting assembly; and a second supporting arm rotatably connected to the first supporting arm, the second supporting arm being provided with a third end slidably connected to the first mounting assembly and a fourth end rotatably connected to the second mounting assembly; at least one of the first end and the third end is correspondingly connected to the first supporting mechanism.

[0014] In an embodiment, the first mounting assembly is provided with a first sliding groove, both the first end and the third end are provided in the first sliding groove, the scissor mechanism further comprises a first limiting assembly provided in the first sliding groove, and the scissor mechanism limits a displacement of the first end and / or the third end along the first sliding groove through the first limiting assembly.

[0015] In an embodiment, the first limiting assembly includes: a limiting member slidably provided in the first sliding groove; and a fastener connecting the limiting member and the first mounting assembly to position the limiting member in the first sliding groove.

[0016] In an embodiment, the scissor mechanism further includes: a rotating shaft provided at the third end; and a second rolling member sleeved at an outside of the rotating shaft rotating relative to the second rolling member, the third end being rollably connected to the first mounting assembly through the second rolling member.

[0017] In an embodiment, the first mounting assembly is provided with a first passage, the first sliding groove is in communication with the first passage, the rotating shaft is slidably inserted through the first sliding groove, and the second rolling member is rollably provided in the first passage.

[0018] In an embodiment, the first mounting assembly includes: a mounting member; and a guide member fixed at a side of the mounting member facing the scissor mechanism, the guide member being provided with the first sliding groove, and the mounting member and the guide member jointly enclosing to form the first passage.

[0019] In an embodiment, the second mounting assembly is provided with a second sliding groove, both the second end and the fourth end are provided in the second sliding groove, the scissor mechanism further comprises a second limiting assembly, and the second limiting assembly limits the second end and the fourth end.

[0020] The present application also provides a vehicle, including: the telescopic device as described above; a vehicle body provided with an in-vehicle space and an opening in communication with the in-vehicle space; and an extending member, one of the vehicle body and the extending member being provided with the first mounting assembly, the other of the vehicle body and the extending member being provided with the second mounting assembly, and the extending member closing the opening or moving away from the in-vehicle space to open the opening through a movement of the telescopic device.

[0021] In an embodiment, the vehicle further includes a guide rail and a guide groove, one of the vehicle body and the extending member is provided with the guide rail, the other of the vehicle body and the extending member is provided with the guide groove corresponding to the guide rail, and the guide rail is slidably connected to the guide groove.

[0022] The telescopic device in one technical solution of embodiments 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 provided at opposite sides of the scissor mechanism, and the scissor mechanism moves to make the first mounting assembly and the second mounting assembly approach or move away 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 to approach or move away from each other. The scissor mechanism has a simple structure, high load-bearing capacity and good stability during the telescopic process. Moreover, when the first mounting assembly and the second mounting assembly approach each other, the scissor mechanism is folded between the first mounting assembly and the second mounting assembly, so that the entire telescopic device occupies a small space. Since the scissor mechanism is parallel to the ground in this solution, when the second mounting assembly and the first mounting assembly move away from each other, the scissor mechanism extends for a long length 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 tend to bend and deform downward. In this solution, the first supporting mechanism is provided to connect the scissor mechanism and the first mounting assembly, and the first supporting mechanism provides a supporting force for the scissor mechanism in the gravity direction, thereby reducing the possibility of bending and deformation of the scissor mechanism and the entire telescopic device, ensuring the normal operation of the telescopic device and prolonging the service life of the telescopic device.BRIEF DESCRIPTION OF THE DRAWINGS

[0023] To explain the technical solutions in the embodiments of the present application or in the prior art more clearly, the drawings required for describing the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to the structures shown in these drawings without creative work. FIG. 1 is a first structural schematic view of a telescopic device according to an embodiment of the present application. FIG. 2 is a second structural schematic view of the telescopic device according to an embodiment of the present application. FIG. 3 is an exploded view of the telescopic device according to an embodiment of the present application. FIG. 4 is a partial structural schematic view of a vehicle according to an embodiment of the present application. FIG. 5 is a partial structural schematic view of an extending member of the vehicle of the present application. FIG. 6 is a structural schematic view of the extending member and the telescopic device of the vehicle of the present application. Description of reference signs:

[0024] [table 1_sm_0001]reference signnamereference signname10telescopic device100first mounting assembly101first supporting slot102first passage110mounting member120guide member121first sliding groove200second mounting assembly201second supporting slot300scissor mechanism310first supporting arm311first end312second end320second supporting arm321third end322fourth end330first limiting assembly331limiting member332fastener341rotating shaft342second rolling member350second limiting assembly400first supporting mechanism410first bracket420first rolling member500second supporting mechanism610first supporting member620second supporting member20vehicle body21first mounting bracket30extending member31second mounting bracket

[0025] The realization of the objective, functional characteristics, and advantages of the present application are further described with reference to the accompanying drawings.DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The technical solutions of the embodiments of the present application will be described in more detail below with reference to the accompanying drawings. It is obvious that the embodiments to be described are only some rather than all of the embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative efforts shall fall within the scope of the present application.

[0027] It should be noted that if there are directional indications, such as up, down, left, right, front, back, etc., involved in the embodiments of the present application, the directional indications are only used to explain a certain posture as shown in the accompanying drawings. If the specific posture changes, the directional indication also changes accordingly.

[0028] In the present application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. shall be understood in a broad sense. For example, "fixation" may be a fixed connection, a detachable connection, or integration; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may also be the internal communication between two elements or the interaction relationship between two elements, unless otherwise clearly limited. Those skilled in the art can understand the specific meanings of the above terms in the present application according to specific situations.

[0029] In addition, if there are descriptions related to "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for the purpose of description, and should not be construed as indicating or implying relative importance or implicitly indicates the number of technical features indicated. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. Besides, the meaning of "and / or" appearing in the application includes three parallel scenarios. For example, "A and / or B" includes A, or B, or both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but must be based on the realization by those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of such technical solutions does not exist or falls within the scope of protection claimed in the present application.

[0030] The present application provides a telescopic device.

[0031] Referring to FIG. 1 to FIG. 2, FIG. 1 is a first structural schematic view of a telescopic device according to an embodiment of the present application. FIG. 2 is a second structural schematic view of the telescopic device according to an embodiment of the present application.

[0032] In an embodiment of the present application, the telescopic device 10 includes: 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 provided at opposite sides of the scissor mechanism 300, and the scissor mechanism 300 being drivingly connected to the first mounting assembly 100 and the second mounting assembly 200 to make the first mounting assembly 100 and the second mounting assembly 200 approach or move away from each other; and a first supporting mechanism 400, one end of the first supporting mechanism 400 being connected to the scissor mechanism 300, and the other end of the first supporting mechanism 400 being movably connected to the first mounting assembly 100 to support the scissor mechanism 300 in the gravity direction.

[0033] The telescopic device 10 in one technical solution of the embodiments of the present application includes a first mounting assembly 100, a second mounting assembly 200, a scissor mechanism 300 and a first supporting mechanism 400. The first mounting assembly 100 and the second mounting assembly 200 are provided at opposite sides of the scissor mechanism 300, and the scissor mechanism 300 moves to make the first mounting assembly 100 and the second mounting assembly 200 approach or move 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 drive the first object and the second object to approach or move away from each other. The scissor mechanism 300 has a simple structure, high load-bearing capacity and good stability during the telescopic process. Moreover, when the first mounting assembly 100 and the second mounting assembly 200 approach each other, the scissor mechanism 300 is folded 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 scissor mechanism 300 is parallel to the ground in this solution, when the second mounting assembly 200 and the first mounting assembly 100 move away from each other, the scissor mechanism 300 extends for a long 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 tend to bend and deform downward. In this solution, the first supporting mechanism 400 is provided to connect the scissor mechanism 300 and the first mounting assembly 100, and the first supporting mechanism 400 provides a supporting force for the scissor mechanism 300 in the gravity direction, 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 prolonging the service life of the telescopic device 10.

[0034] In an embodiment, a side of the first mounting assembly 100 facing the scissor mechanism 300 is provided with a first supporting slot 101, and the first supporting mechanism 400 includes a first bracket 410. One end of the first bracket 410 is connected to the scissor mechanism 300, the other end of the first bracket 410 is slidably provided in the first supporting slot 101, and the first bracket 410 moves linearly along the first supporting slot 101 under the driving of the scissor mechanism 300.

[0035] With reference to FIG. 1 and FIG. 3, in this embodiment, the first mounting assembly 100 is provided with a first supporting slot 101, and the first supporting mechanism 400 includes a first bracket 410. One end of the first bracket 410 is connected to the scissor mechanism 300, and the other end of the first bracket 410 is provided in the first supporting slot 101, so that the inner wall of the first supporting slot 101 supports the first bracket 410, thereby supporting the scissor mechanism 300, with a simple structure, easy realization and low cost. On the other hand, the first supporting slot 101 can limit the position of the first bracket 410, enhance the connection between the scissor mechanism 300 and the first mounting assembly 100, and reduce the possibility of separation between the scissor mechanism 300 and the first mounting assembly 100. When the scissor mechanism 300 moves, the first bracket 410 moves with the scissor mechanism 300 to move linearly in the first supporting slot 101. Whether the scissor mechanism 300 is static or dynamic, the first bracket 410 can provide continuous and stable support for 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 prolonging the service life of the telescopic device 10. Specifically in this embodiment, the opening of the first supporting slot 101 faces the vertical direction. When moving inside the first supporting slot 101, the first bracket 410 may not only abut against the bottom wall of the first supporting slot 101 but also against the side wall of the first supporting slot 101. The abutment between the side wall of the first supporting slot 101 and the first bracket 410 can prevent the scissor mechanism 300 from rotating around the first mounting assembly 100, which is equivalent to preventing the scissor mechanism 300 from bending and deforming under the action of gravity, further prolonging the service life of the scissor mechanism 300 and the entire telescopic device 10.

[0036] In an embodiment, the first supporting mechanism 400 further includes a first rolling member 420 provided 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 rollably connected to an inner wall of the first supporting slot 101; and / or the telescopic device 10 further includes a first supporting member 610 connected to the first mounting assembly 100 to jointly form the first supporting slot 101.

[0037] With reference to FIG. 1 and FIG. 3, in this embodiment, a first rolling member 420 is provided at an end of the first bracket 410 away from the scissor mechanism 300, and the first bracket 410 abuts against the inner wall of the first supporting slot 101 through the first rolling member 420. When the first bracket 410 moves linearly, the first rolling member 420 rolls inside the first supporting slot 101, which reduces the frictional resistance between the first supporting mechanism 400 and the first mounting assembly 100, makes the linear movement of the first supporting mechanism 400 along the first supporting slot 101 smoother, thereby improving the smoothness of the telescopic device 10 during telescoping and reducing the possibility of jamming of the telescopic device 10.

[0038] With reference to FIG. 1 and FIG. 3, in this embodiment, the telescopic device 10 further includes a first supporting member 610, and the first supporting member 610 includes a connecting portion, a supporting portion and a limiting portion. The connecting portion is attached and fixed to the mounting member 110 of the first mounting assembly 100, and 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 an end of the supporting portion away from the connecting portion and extends toward the scissor mechanism 300, and the limiting portion, the supporting portion and the mounting member 110 are enclosed to form the first supporting slot 101, with a simple structure and easy manufacture. The first supporting member 610 is an integrated structure, and the connecting portion, the supporting portion and the limiting portion are formed by bending, with a simple manufacturing method. The connecting portion can be fixed to the mounting member 110 by welding, screwing or other methods to ensure the connection strength between the first supporting member 610 and the first mounting assembly 100. The connecting portion and the limiting portion are located on opposite sides of the supporting portion, which facilitates the assembly between the connecting portion and the mounting member 110. The connecting portion provides a certain supporting force for the supporting portion, reducing the possibility of deformation of the first supporting member 610 itself.

[0039] In an embodiment, the telescopic device 10 further includes a second supporting mechanism 500. One end of the second supporting mechanism 500 is connected to the scissor mechanism 300, the other end of the second supporting mechanism 500 is movably connected to the second mounting assembly 200, and the first supporting mechanism 400 is cooperated with the second supporting mechanism 500 to jointly support the scissor mechanism 300 in the gravity direction.

[0040] Referring to FIG. 1, in this embodiment, the telescopic device 10 further includes a second supporting mechanism 500 connected to the scissor mechanism 300 and the second mounting assembly 200. The second supporting mechanism 500 and the first supporting structure jointly provide a supporting force for the scissor mechanism 300 in the gravity direction, which further reduces the possibility of bending and deformation of the scissor mechanism 300 and the entire telescopic device 10, ensures the normal operation of the telescopic device 10 and prolongs the service life of the telescopic device 10. Specifically in this embodiment, a second supporting member 620 is also provided at a side of the second mounting assembly 200 facing the scissor mechanism 300, the second supporting member 620 and the second mounting assembly 200 are enclosed to form a second supporting slot 201, and the first supporting mechanism 400 and the second supporting mechanism 500 are symmetrically provided with the same structure, which reduces the types of parts of the telescopic device 10 and improves the assembly efficiency and replaceability of the telescopic device 10.

[0041] In an embodiment, the scissor mechanism 300 includes: a first supporting arm 310 provided with 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; and a second supporting arm 320 rotatably connected to the first supporting arm 310 and provided with a third end 321 and a fourth end 322, the third end 321 being slidably connected to the first mounting assembly 100, and the fourth end 322 being rotatably connected to the second mounting assembly 200.

[0042] At least one of the first end 311 and the third end 321 is correspondingly connected to the first supporting mechanism 400.

[0043] Referring to FIG. 3, in this embodiment, the scissor mechanism 300 includes a first supporting arm 310 and a second supporting arm 320 rotatably connected to the first supporting arm 310. The first supporting arm 310 has a first end 311 and a second end 312, and the second supporting 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, and 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 to make 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 to make the first mounting assembly 100 and the second mounting assembly 200 approach each other, with a simple structure. The first supporting mechanism 400 may be provided at the first end 311, and the first supporting mechanism 400 may be provided at a side of the first end 311 facing the ground or a side of the first end 311 away from the ground. The second supporting mechanism 500 may also be provided at the third end 321, and the second supporting mechanism 500 may be provided at a side of the third end 321 facing the ground or a side of the third end 321 away from the ground. Specifically in this embodiment, a first supporting mechanism 400 is provided at each of the upper and lower sides of the first end 311 and the upper and lower sides of the third end 321, and a second supporting mechanism 500 is provided at each of the upper and lower sides of the second end 312 and the upper and lower sides of the fourth end 322. The support between the scissor mechanism 300 and the first mounting assembly 100 is realized through four first supporting mechanisms 400, and the support between the scissor mechanism 300 and the second mounting assembly 200 is realized through four second supporting mechanisms 500, which greatly 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 prolongs the service life of the telescopic device 10.

[0044] In an embodiment, the first mounting assembly 100 is provided with a first sliding groove 121, and both the first end 311 and the third end 321 are slidably provided in the first sliding groove 121. The scissor mechanism 300 further includes a first limiting assembly 330 provided in the first sliding groove 121, and the scissor mechanism 300 limits the displacement of the first end 311 and / or the third end 321 along the first sliding groove 121 through the first limiting assembly 330.

[0045] Referring to FIG. 3, in this embodiment, the first mounting assembly 100 is provided with a first sliding groove 121, and both the first end 311 and the third end 321 are provided in the first sliding groove 121. The first sliding groove 121 guides the sliding of the third end 321 to make the linear movement track of the third end 321 more accurate, thereby improving the smoothness of the movement of the scissor mechanism 300, further ensuring the smoothness of the telescoping of the telescopic device 10 and reducing the possibility of jamming of the telescopic device 10. The scissor mechanism 300 further includes a first limiting assembly 330, which can limit the position of the first end 311 so that the first end 311 cannot slide along the first sliding groove 121 but only rotate in the first sliding groove 121. The first limiting assembly 330 can also limit the stroke of the third end 321 in the first sliding groove 121, thereby adjusting the extension and folding stroke of the scissor mechanism 300, further adjusting the spacing range between the first mounting assembly 100 and the second mounting assembly 200, and realizing the adjustment of the telescopic stroke of the telescopic device 10. The first end 311 and the third end 321 adopt the same structural form to realize the rotational connection between the first end 311 and the first mounting assembly 100 and the sliding connection between the third end 321 and the first mounting assembly 100, which reduces the types of parts of the telescopic device 10 and improves the assembly efficiency and replaceability of the telescopic device 10. The first limiting assembly 330 can be connected to the first mounting assembly 100 by clamping, screwing or other methods, so that the position of the first limiting assembly 330 itself on the first mounting assembly 100 can be adjusted or fixed. When fixed to the first mounting assembly 100, the first limiting assembly 330 can prevent the first end 311 or the third end 321 from sliding along the first sliding groove 121. Specifically in this embodiment, the second mounting assembly 200 is also provided with a second sliding groove, and the second end 312 and the fourth end 322 are both provided in the second sliding groove. The scissor mechanism 300 further includes a second limiting assembly 350, and the second limiting assembly 350 limits the position of the second end 312 and the fourth end 322 with the same structural form as the first limiting assembly 330, which improves the replaceability of the telescopic device 10. Through the cooperation of the first sliding groove 121 and the first limiting assembly 330 and the cooperation of the second sliding groove and the second limiting assembly 350, the four ends of the scissor mechanism 300 can be freely switched between rotation and sliding, and it is also more convenient to adjust the folding and unfolding stroke of the scissor mechanism 300, so that the telescopic device 10 can meet more telescopic distance requirements and expand the application scenarios of the telescopic device 10.

[0046] In an embodiment, the first limiting assembly 330 includes: a limiting member 331 slidably provided in the first sliding groove 121; and a fastener 332 connecting the limiting member 331 and the first mounting assembly 100 to position the limiting member 331 in the first sliding groove 121.

[0047] With reference to FIG. 1 and FIG. 3, in this embodiment, the first limiting assembly 330 includes a limiting member 331 and a fastener 332, the limiting member 331 is inserted through the first sliding groove 121, and the fastener 332 can fix the limiting member 331 to the first mounting assembly 100. Specifically in this embodiment, the limiting member 331 is a bolt, and the fastener 332 is a nut. First sliding grooves 121 are provided at both the upper and lower sides of the guide member 120, and the bolt is inserted through the guide member 120 through the two first sliding grooves 121. When the nut is tightened on the bolt, the nut and the bolt head clamp the guide member 120 to realize the positioning of the first limiting assembly 330 itself, thereby limiting the stroke of the first end 311 or the third end 321 in the first sliding groove 121, with a simple structure, low cost and easy realization.

[0048] In an embodiment, the scissor mechanism 300 further includes: a rotating shaft 341 provided at the third end 321; and a second rolling member 342 sleeved at the outside of the rotating shaft 341, the rotating shaft 341 and the second rolling member 342 being relatively rotatable, and the third end 321 being rollably connected to the first mounting assembly 100 through the second rolling member 342.

[0049] With reference to FIG. 1 and FIG. 3, in this embodiment, the scissor mechanism 300 further includes a rotating shaft 341 and a second rolling member 342, and the rotating shaft 341 is provided at the third end 321 and inserted through the first sliding groove 121. The second rolling member 342 is sleeved at the rotating shaft 341, and the third end 321 abuts against the first mounting assembly 100 through the second rolling member 342. The sliding of the third end 321 along the first sliding groove 121 is realized through the rolling of the second rolling member 342 along the first mounting assembly 100, which reduces the frictional resistance between the third end 321 and the first mounting assembly 100, makes the sliding of the third end 321 along the first mounting assembly 100 smoother, thereby improving the smoothness of the movement of the scissor mechanism 300 and further improving the smoothness of the telescoping of the telescopic device 10, reducing the possibility of jamming of the telescopic device 10. Specifically in this embodiment, a rotating shaft 341 and a second rolling member 342 are provided at each of the first end 311, the second end 312, the third end 321 and the fourth end 322. When the four ends of the scissor mechanism 300 are switched and adjusted between rotation and sliding, the sliding smoothness can be guaranteed, and the same arrangement of the four ends also reduces the manufacturing difficulty of the scissor mechanism 300. The first supporting mechanism 400 and the second supporting mechanism 500 are provided at the corresponding rotating shaft 341. Taking the third end 321 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, so that the second rolling member 342 on the rotating shaft 341 rolls along the first mounting assembly 100. The first bracket 410 on the rotating shaft 341 moves with the rotating shaft 341, so that the first rolling member 420 on the first bracket 410 rolls along the first supporting member 610.

[0050] In an embodiment, the first mounting assembly 100 is provided with a first passage 102, and the first sliding groove 121 is in communication with the first passage 102. The rotating shaft 341 is slidably inserted through the first sliding groove 121, and the second rolling member 342 is rollably provided in the first passage 102.

[0051] With reference to FIG. 1 and FIG. 3, in this embodiment, the first mounting assembly 100 is provided with a first passage 102, and the second rolling member 342 rolls inside the first passage 102. The first passage 102 has two opposite vertical inner walls. When the telescopic device 10 extends, the second rolling member 342 rolls along one of the vertical inner walls. When the telescopic device 10 retracts, the second rolling member 342 rolls along the other one of the vertical inner walls, which ensures that the second rolling member 342 can roll along the first mounting assembly 100 whether the telescopic device 10 is extending or retracting, thereby ensuring the smoothness of the telescoping of the telescopic device 10.

[0052] In an embodiment, the first mounting assembly 100 includes: a mounting member 110; and a guide member 120 fixed at a side of the mounting member 110 facing the scissor mechanism 300, the guide member 120 being provided with the first sliding groove 121, and the mounting member 110 and the guide member 120 being enclosed to form the first passage 102.

[0053] With reference to FIG. 1 and FIG. 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 shape, and the peripheral edge of the opening is fixed to the mounting member 110 to form the first passage 102, with a simple structure and easy realization. First sliding grooves 121 are provided at both the upper and lower sides of the first passage 102, and the rotating shaft 341 is inserted through the guide member 120 through the two first sliding grooves 121, which not only ensures the stability of the rolling of the second rolling member 342 inside the first passage 102 but also facilitates the assembly of the first supporting mechanism 400. Specifically in this embodiment, the mounting member 110 is bent to form a recess recessed in a direction away from the second mounting assembly 200, the guide member 120 is provided in the recess, and the supporting member is provided outside the recess, so that the spacing between two opposite second rolling members 342 respectively provided at the first mounting assembly 100 and the second mounting assembly 200 is larger than the spacing between the first supporting mechanism 400 and the second supporting mechanism 500, which enables the first supporting mechanism 400 and the second supporting mechanism 500 to play a better supporting role, reduces the possibility of deformation of the telescopic device 10 under gravity, and makes the structure of the entire telescopic device 10 more compact and occupy a smaller space.

[0054] In this embodiment, the first supporting arm 310 is provided with an accommodating space. When the first mounting assembly 100 and the second mounting assembly 200 approach each other, the first supporting arm 310 can accommodate the second supporting arm 320 inside the accommodating 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 a smaller space.

[0055] The present application also provides a vehicle, including: the telescopic device 10 as described above; a vehicle body 20 provided with an in-vehicle space and an opening in communication with the in-vehicle space; and an extending member 30, one of the vehicle body 20 and the extending member 30 being provided with the first mounting assembly 100, the other of the vehicle body 20 and the extending member 30 being provided with the second mounting assembly 200, and the extending member 30 being configured to close the opening or move away from the in-vehicle space to open the opening through the movement of the telescopic device 10.

[0056] Referring to FIG. 4, the specific structure of the telescopic device 10 can refer to the above embodiments. Since the vehicle adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here. The vehicle may be commercial vehicles, caravans or the like. The vehicle body 20 and the extending member 30 are connected through the telescopic device 10. On the one hand, the extending member 30 can be driven to move away from the in-vehicle space to open the opening of the in-vehicle space, expand the size of the in-vehicle space and provide users with a more spacious resting space. On the other hand, the structure is simple and the telescopic device 10 occupies a small internal space of the vehicle. On the third hand, the telescopic device 10 has good vertical supporting force and is not easy to deform. When the extending member 30 moves away from the opening, the possibility and degree of falling under the action of gravity are low. When the extending member 30 moves close to the opening, the problem that the extending member 30 cannot be aligned with the opening is less likely to occur. The opening and the extending member 30 may be provided at the tail of the vehicle to expand the space in the length direction of the vehicle, or may be provided at the side of the vehicle to expand the space in the width direction of the vehicle. A first mounting bracket 21 is provided at 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 at the extending member 30. With reference to FIG. 5 to FIG. 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, which makes the fixation of the telescopic device 10 firmer and the force bearing more uniform. The mounting seat is provided with a groove corresponding to the mounting member 110, and a side of the mounting member 110 away from the guide member 120 is attached and fixed to the mounting seat, which makes the fixation of the telescopic device 10 firmer. Specifically in this embodiment, the extending member 30 is a vehicle door, but users do not enter or exit the vehicle through the vehicle door. The vehicle door has a mature manufacturing process and excellent sealing performance between the vehicle door and the opening, the vehicle door can close the opening more tightly, and the appearance of the vehicle is not affected.

[0057] In an embodiment, the vehicle further includes a guide rail and a guide groove. One of the vehicle body 20 and the extending member 30 is provided with the guide rail, the other of the vehicle body 20 and the extending member 30 is provided with the guide groove corresponding to the guide rail, and the guide rail is slidably connected to the guide groove.

[0058] In this embodiment, the vehicle further includes a guide rail and a guide groove, which guide the extending member 30 to make the track of the extending member 30 more accurate when moving away from or close to the in-vehicle space. In addition, the guide rail and the guide groove can also provide a certain supporting force for the extending member 30, further reducing the possibility of falling of the extending member 30 under the action of gravity after extending. Specifically in this embodiment, an end of the extending member 30 close to the ground is connected to the vehicle body 20 through the guide rail and the guide groove, and an end of the extending member 30 away from the ground is connected to the vehicle body 20 through the telescopic device 10. On the one hand, the force bearing of the extending member 30 is more uniform after extending; on the other hand, such arrangement occupies a small internal space of the vehicle and can provide more internal space of the vehicle for arranging other parts or for users' activities.

[0059] The above are only embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structural transformation made by using the contents of the specification and the accompanying drawings of the present application under the inventive concept of the present application, or direct / indirect application in other related technical fields, is included in the scope of the present application.

Examples

Embodiment Construction

[0026]The technical solutions of the embodiments of the present application will be described in more detail below with reference to the accompanying drawings. It is obvious that the embodiments to be described are only some rather than all of the embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative efforts shall fall within the scope of the present application.

[0027]It should be noted that if there are directional indications, such as up, down, left, right, front, back, etc., involved in the embodiments of the present application, the directional indications are only used to explain a certain posture as shown in the accompanying drawings. If the specific posture changes, the directional indication also changes accordingly.

[0028]In the present application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. shall be understood in a b...

[0001] The present application claims priority to Chinese Patent Application No. 202410054082.1, filed to the China National Intellectual Property Administration on January 12, 2024, the entire contents of which are incorporated herein by reference.TECHNICAL FIELD

[0002] The present application relates to the technical field of vehicles, and in particular to a telescopic device and a vehicle.BACKGROUND

[0003] With the advancement of science and technology and the improvement of people's living standards, vehicles have evolved from a mere means of transportation into an integrated tool with multiple functions such as travel, leisure and entertainment, and the diversified development of vehicle functions has become a new trend. Improving the comfort of users for temporary rest has become a widely concerned aspect.

[0004] To provide users with a larger resting space, a drawer-type expansion cabin is provided at one side of the vehicle in related art, and the horizontal space of the vehicle is expanded by extending the expansion cabin.

[0005] However, such drawer-type expansion cabin occupies a large internal space of the vehicle when retracted.SUMMARY

[0006] The main objective of the present application is to provide a telescopic device, aiming to provide a telescopic device with a small occupied space.

[0007] To achieve the above objective, the telescopic device provided in the present application includes: a first mounting assembly; a second mounting assembly; a scissor mechanism, the first mounting assembly and the second mounting assembly being provided at opposite sides of the scissor mechanism, and the scissor mechanism being drivingly connected to the first mounting assembly and the second mounting assembly to make the first mounting assembly and the second mounting assembly approach or move away from each other; and a first supporting mechanism, one end of the first supporting mechanism being connected to the scissor mechanism, and the other end of the first supporting mechanism being movably connected to the first mounting assembly to support the scissor mechanism in a gravity direction.

[0008] In an embodiment, a side of the first mounting assembly facing the scissor mechanism is provided with a first supporting slot, the first supporting mechanism comprises a first bracket, one end of the first bracket is connected to the scissor mechanism, the other end of the first bracket is slidably provided in the first supporting slot, and the first bracket is driven by the scissor mechanism to move linearly along the first supporting slot.

[0009] In an embodiment, the first supporting mechanism further comprises a first rolling member provided at an end of the first bracket away from the scissor mechanism, and the first rolling member is rotatably connected to the first bracket and rollably connected to an inner wall of the first supporting slot.

[0010] In an embodiment, the telescopic device further includes a first supporting member, and the first supporting member is connected to the first mounting assembly to jointly enclose to form the first supporting slot.

[0011] In an embodiment, the telescopic device further includes a second supporting mechanism, one end of the second supporting mechanism is connected to the scissor mechanism, the other end of the second supporting mechanism is movably connected to the second mounting assembly, and the first supporting mechanism is cooperated with the second supporting mechanism to jointly support the scissor mechanism in the gravity direction.

[0012] In an embodiment, the telescopic device further includes a second supporting member connected to the second mounting assembly to jointly enclose to form a second supporting slot.

[0013] In an embodiment, the scissor mechanism includes: a first supporting arm provided with a first end rotatably connected to the first mounting assembly and a second end slidably connected to the second mounting assembly; and a second supporting arm rotatably connected to the first supporting arm, the second supporting arm being provided with a third end slidably connected to the first mounting assembly and a fourth end rotatably connected to the second mounting assembly; at least one of the first end and the third end is correspondingly connected to the first supporting mechanism.

[0014] In an embodiment, the first mounting assembly is provided with a first sliding groove, both the first end and the third end are provided in the first sliding groove, the scissor mechanism further comprises a first limiting assembly provided in the first sliding groove, and the scissor mechanism limits a displacement of the first end and / or the third end along the first sliding groove through the first limiting assembly.

[0015] In an embodiment, the first limiting assembly includes: a limiting member slidably provided in the first sliding groove; and a fastener connecting the limiting member and the first mounting assembly to position the limiting member in the first sliding groove.

[0016] In an embodiment, the scissor mechanism further includes: a rotating shaft provided at the third end; and a second rolling member sleeved at an outside of the rotating shaft rotating relative to the second rolling member, the third end being rollably connected to the first mounting assembly through the second rolling member.

[0017] In an embodiment, the first mounting assembly is provided with a first passage, the first sliding groove is in communication with the first passage, the rotating shaft is slidably inserted through the first sliding groove, and the second rolling member is rollably provided in the first passage.

[0018] In an embodiment, the first mounting assembly includes: a mounting member; and a guide member fixed at a side of the mounting member facing the scissor mechanism, the guide member being provided with the first sliding groove, and the mounting member and the guide member jointly enclosing to form the first passage.

[0019] In an embodiment, the second mounting assembly is provided with a second sliding groove, both the second end and the fourth end are provided in the second sliding groove, the scissor mechanism further comprises a second limiting assembly, and the second limiting assembly limits the second end and the fourth end.

[0020] The present application also provides a vehicle, including: the telescopic device as described above; a vehicle body provided with an in-vehicle space and an opening in communication with the in-vehicle space; and an extending member, one of the vehicle body and the extending member being provided with the first mounting assembly, the other of the vehicle body and the extending member being provided with the second mounting assembly, and the extending member closing the opening or moving away from the in-vehicle space to open the opening through a movement of the telescopic device.

[0021] In an embodiment, the vehicle further includes a guide rail and a guide groove, one of the vehicle body and the extending member is provided with the guide rail, the other of the vehicle body and the extending member is provided with the guide groove corresponding to the guide rail, and the guide rail is slidably connected to the guide groove.

[0022] The telescopic device in one technical solution of embodiments 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 provided at opposite sides of the scissor mechanism, and the scissor mechanism moves to make the first mounting assembly and the second mounting assembly approach or move away 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 to approach or move away from each other. The scissor mechanism has a simple structure, high load-bearing capacity and good stability during the telescopic process. Moreover, when the first mounting assembly and the second mounting assembly approach each other, the scissor mechanism is folded between the first mounting assembly and the second mounting assembly, so that the entire telescopic device occupies a small space. Since the scissor mechanism is parallel to the ground in this solution, when the second mounting assembly and the first mounting assembly move away from each other, the scissor mechanism extends for a long length 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 tend to bend and deform downward. In this solution, the first supporting mechanism is provided to connect the scissor mechanism and the first mounting assembly, and the first supporting mechanism provides a supporting force for the scissor mechanism in the gravity direction, thereby reducing the possibility of bending and deformation of the scissor mechanism and the entire telescopic device, ensuring the normal operation of the telescopic device and prolonging the service life of the telescopic device.BRIEF DESCRIPTION OF THE DRAWINGS

[0023] To explain the technical solutions in the embodiments of the present application or in the prior art more clearly, the drawings required for describing the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to the structures shown in these drawings without creative work. FIG. 1 is a first structural schematic view of a telescopic device according to an embodiment of the present application. FIG. 2 is a second structural schematic view of the telescopic device according to an embodiment of the present application. FIG. 3 is an exploded view of the telescopic device according to an embodiment of the present application. FIG. 4 is a partial structural schematic view of a vehicle according to an embodiment of the present application. FIG. 5 is a partial structural schematic view of an extending member of the vehicle of the present application. FIG. 6 is a structural schematic view of the extending member and the telescopic device of the vehicle of the present application. Description of reference signs:

[0024] [table 1_sm_0001]reference signnamereference signname10telescopic device100first mounting assembly101first supporting slot102first passage110mounting member120guide member121first sliding groove200second mounting assembly201second supporting slot300scissor mechanism310first supporting arm311first end312second end320second supporting arm321third end322fourth end330first limiting assembly331limiting member332fastener341rotating shaft342second rolling member350second limiting assembly400first supporting mechanism410first bracket420first rolling member500second supporting mechanism610first supporting member620second supporting member20vehicle body21first mounting bracket30extending member31second mounting bracket

[0025] The realization of the objective, functional characteristics, and advantages of the present application are further described with reference to the accompanying drawings.DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The technical solutions of the embodiments of the present application will be described in more detail below with reference to the accompanying drawings. It is obvious that the embodiments to be described are only some rather than all of the embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative efforts shall fall within the scope of the present application.

[0027] It should be noted that if there are directional indications, such as up, down, left, right, front, back, etc., involved in the embodiments of the present application, the directional indications are only used to explain a certain posture as shown in the accompanying drawings. If the specific posture changes, the directional indication also changes accordingly.

[0028] In the present application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. shall be understood in a broad sense. For example, "fixation" may be a fixed connection, a detachable connection, or integration; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may also be the internal communication between two elements or the interaction relationship between two elements, unless otherwise clearly limited. Those skilled in the art can understand the specific meanings of the above terms in the present application according to specific situations.

[0029] In addition, if there are descriptions related to "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for the purpose of description, and should not be construed as indicating or implying relative importance or implicitly indicates the number of technical features indicated. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. Besides, the meaning of "and / or" appearing in the application includes three parallel scenarios. For example, "A and / or B" includes A, or B, or both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but must be based on the realization by those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of such technical solutions does not exist or falls within the scope of protection claimed in the present application.

[0030] The present application provides a telescopic device.

[0031] Referring to FIG. 1 to FIG. 2, FIG. 1 is a first structural schematic view of a telescopic device according to an embodiment of the present application. FIG. 2 is a second structural schematic view of the telescopic device according to an embodiment of the present application.

[0032] In an embodiment of the present application, the telescopic device 10 includes: 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 provided at opposite sides of the scissor mechanism 300, and the scissor mechanism 300 being drivingly connected to the first mounting assembly 100 and the second mounting assembly 200 to make the first mounting assembly 100 and the second mounting assembly 200 approach or move away from each other; and a first supporting mechanism 400, one end of the first supporting mechanism 400 being connected to the scissor mechanism 300, and the other end of the first supporting mechanism 400 being movably connected to the first mounting assembly 100 to support the scissor mechanism 300 in the gravity direction.

[0033] The telescopic device 10 in one technical solution of the embodiments of the present application includes a first mounting assembly 100, a second mounting assembly 200, a scissor mechanism 300 and a first supporting mechanism 400. The first mounting assembly 100 and the second mounting assembly 200 are provided at opposite sides of the scissor mechanism 300, and the scissor mechanism 300 moves to make the first mounting assembly 100 and the second mounting assembly 200 approach or move 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 drive the first object and the second object to approach or move away from each other. The scissor mechanism 300 has a simple structure, high load-bearing capacity and good stability during the telescopic process. Moreover, when the first mounting assembly 100 and the second mounting assembly 200 approach each other, the scissor mechanism 300 is folded 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 scissor mechanism 300 is parallel to the ground in this solution, when the second mounting assembly 200 and the first mounting assembly 100 move away from each other, the scissor mechanism 300 extends for a long 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 tend to bend and deform downward. In this solution, the first supporting mechanism 400 is provided to connect the scissor mechanism 300 and the first mounting assembly 100, and the first supporting mechanism 400 provides a supporting force for the scissor mechanism 300 in the gravity direction, 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 prolonging the service life of the telescopic device 10.

[0034] In an embodiment, a side of the first mounting assembly 100 facing the scissor mechanism 300 is provided with a first supporting slot 101, and the first supporting mechanism 400 includes a first bracket 410. One end of the first bracket 410 is connected to the scissor mechanism 300, the other end of the first bracket 410 is slidably provided in the first supporting slot 101, and the first bracket 410 moves linearly along the first supporting slot 101 under the driving of the scissor mechanism 300.

[0035] With reference to FIG. 1 and FIG. 3, in this embodiment, the first mounting assembly 100 is provided with a first supporting slot 101, and the first supporting mechanism 400 includes a first bracket 410. One end of the first bracket 410 is connected to the scissor mechanism 300, and the other end of the first bracket 410 is provided in the first supporting slot 101, so that the inner wall of the first supporting slot 101 supports the first bracket 410, thereby supporting the scissor mechanism 300, with a simple structure, easy realization and low cost. On the other hand, the first supporting slot 101 can limit the position of the first bracket 410, enhance the connection between the scissor mechanism 300 and the first mounting assembly 100, and reduce the possibility of separation between the scissor mechanism 300 and the first mounting assembly 100. When the scissor mechanism 300 moves, the first bracket 410 moves with the scissor mechanism 300 to move linearly in the first supporting slot 101. Whether the scissor mechanism 300 is static or dynamic, the first bracket 410 can provide continuous and stable support for 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 prolonging the service life of the telescopic device 10. Specifically in this embodiment, the opening of the first supporting slot 101 faces the vertical direction. When moving inside the first supporting slot 101, the first bracket 410 may not only abut against the bottom wall of the first supporting slot 101 but also against the side wall of the first supporting slot 101. The abutment between the side wall of the first supporting slot 101 and the first bracket 410 can prevent the scissor mechanism 300 from rotating around the first mounting assembly 100, which is equivalent to preventing the scissor mechanism 300 from bending and deforming under the action of gravity, further prolonging the service life of the scissor mechanism 300 and the entire telescopic device 10.

[0036] In an embodiment, the first supporting mechanism 400 further includes a first rolling member 420 provided 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 rollably connected to an inner wall of the first supporting slot 101; and / or the telescopic device 10 further includes a first supporting member 610 connected to the first mounting assembly 100 to jointly form the first supporting slot 101.

[0037] With reference to FIG. 1 and FIG. 3, in this embodiment, a first rolling member 420 is provided at an end of the first bracket 410 away from the scissor mechanism 300, and the first bracket 410 abuts against the inner wall of the first supporting slot 101 through the first rolling member 420. When the first bracket 410 moves linearly, the first rolling member 420 rolls inside the first supporting slot 101, which reduces the frictional resistance between the first supporting mechanism 400 and the first mounting assembly 100, makes the linear movement of the first supporting mechanism 400 along the first supporting slot 101 smoother, thereby improving the smoothness of the telescopic device 10 during telescoping and reducing the possibility of jamming of the telescopic device 10.

[0038] With reference to FIG. 1 and FIG. 3, in this embodiment, the telescopic device 10 further includes a first supporting member 610, and the first supporting member 610 includes a connecting portion, a supporting portion and a limiting portion. The connecting portion is attached and fixed to the mounting member 110 of the first mounting assembly 100, and 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 an end of the supporting portion away from the connecting portion and extends toward the scissor mechanism 300, and the limiting portion, the supporting portion and the mounting member 110 are enclosed to form the first supporting slot 101, with a simple structure and easy manufacture. The first supporting member 610 is an integrated structure, and the connecting portion, the supporting portion and the limiting portion are formed by bending, with a simple manufacturing method. The connecting portion can be fixed to the mounting member 110 by welding, screwing or other methods to ensure the connection strength between the first supporting member 610 and the first mounting assembly 100. The connecting portion and the limiting portion are located on opposite sides of the supporting portion, which facilitates the assembly between the connecting portion and the mounting member 110. The connecting portion provides a certain supporting force for the supporting portion, reducing the possibility of deformation of the first supporting member 610 itself.

[0039] In an embodiment, the telescopic device 10 further includes a second supporting mechanism 500. One end of the second supporting mechanism 500 is connected to the scissor mechanism 300, the other end of the second supporting mechanism 500 is movably connected to the second mounting assembly 200, and the first supporting mechanism 400 is cooperated with the second supporting mechanism 500 to jointly support the scissor mechanism 300 in the gravity direction.

[0040] Referring to FIG. 1, in this embodiment, the telescopic device 10 further includes a second supporting mechanism 500 connected to the scissor mechanism 300 and the second mounting assembly 200. The second supporting mechanism 500 and the first supporting structure jointly provide a supporting force for the scissor mechanism 300 in the gravity direction, which further reduces the possibility of bending and deformation of the scissor mechanism 300 and the entire telescopic device 10, ensures the normal operation of the telescopic device 10 and prolongs the service life of the telescopic device 10. Specifically in this embodiment, a second supporting member 620 is also provided at a side of the second mounting assembly 200 facing the scissor mechanism 300, the second supporting member 620 and the second mounting assembly 200 are enclosed to form a second supporting slot 201, and the first supporting mechanism 400 and the second supporting mechanism 500 are symmetrically provided with the same structure, which reduces the types of parts of the telescopic device 10 and improves the assembly efficiency and replaceability of the telescopic device 10.

[0041] In an embodiment, the scissor mechanism 300 includes: a first supporting arm 310 provided with 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; and a second supporting arm 320 rotatably connected to the first supporting arm 310 and provided with a third end 321 and a fourth end 322, the third end 321 being slidably connected to the first mounting assembly 100, and the fourth end 322 being rotatably connected to the second mounting assembly 200.

[0042] At least one of the first end 311 and the third end 321 is correspondingly connected to the first supporting mechanism 400.

[0043] Referring to FIG. 3, in this embodiment, the scissor mechanism 300 includes a first supporting arm 310 and a second supporting arm 320 rotatably connected to the first supporting arm 310. The first supporting arm 310 has a first end 311 and a second end 312, and the second supporting 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, and 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 to make 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 to make the first mounting assembly 100 and the second mounting assembly 200 approach each other, with a simple structure. The first supporting mechanism 400 may be provided at the first end 311, and the first supporting mechanism 400 may be provided at a side of the first end 311 facing the ground or a side of the first end 311 away from the ground. The second supporting mechanism 500 may also be provided at the third end 321, and the second supporting mechanism 500 may be provided at a side of the third end 321 facing the ground or a side of the third end 321 away from the ground. Specifically in this embodiment, a first supporting mechanism 400 is provided at each of the upper and lower sides of the first end 311 and the upper and lower sides of the third end 321, and a second supporting mechanism 500 is provided at each of the upper and lower sides of the second end 312 and the upper and lower sides of the fourth end 322. The support between the scissor mechanism 300 and the first mounting assembly 100 is realized through four first supporting mechanisms 400, and the support between the scissor mechanism 300 and the second mounting assembly 200 is realized through four second supporting mechanisms 500, which greatly 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 prolongs the service life of the telescopic device 10.

[0044] In an embodiment, the first mounting assembly 100 is provided with a first sliding groove 121, and both the first end 311 and the third end 321 are slidably provided in the first sliding groove 121. The scissor mechanism 300 further includes a first limiting assembly 330 provided in the first sliding groove 121, and the scissor mechanism 300 limits the displacement of the first end 311 and / or the third end 321 along the first sliding groove 121 through the first limiting assembly 330.

[0045] Referring to FIG. 3, in this embodiment, the first mounting assembly 100 is provided with a first sliding groove 121, and both the first end 311 and the third end 321 are provided in the first sliding groove 121. The first sliding groove 121 guides the sliding of the third end 321 to make the linear movement track of the third end 321 more accurate, thereby improving the smoothness of the movement of the scissor mechanism 300, further ensuring the smoothness of the telescoping of the telescopic device 10 and reducing the possibility of jamming of the telescopic device 10. The scissor mechanism 300 further includes a first limiting assembly 330, which can limit the position of the first end 311 so that the first end 311 cannot slide along the first sliding groove 121 but only rotate in the first sliding groove 121. The first limiting assembly 330 can also limit the stroke of the third end 321 in the first sliding groove 121, thereby adjusting the extension and folding stroke of the scissor mechanism 300, further adjusting the spacing range between the first mounting assembly 100 and the second mounting assembly 200, and realizing the adjustment of the telescopic stroke of the telescopic device 10. The first end 311 and the third end 321 adopt the same structural form to realize the rotational connection between the first end 311 and the first mounting assembly 100 and the sliding connection between the third end 321 and the first mounting assembly 100, which reduces the types of parts of the telescopic device 10 and improves the assembly efficiency and replaceability of the telescopic device 10. The first limiting assembly 330 can be connected to the first mounting assembly 100 by clamping, screwing or other methods, so that the position of the first limiting assembly 330 itself on the first mounting assembly 100 can be adjusted or fixed. When fixed to the first mounting assembly 100, the first limiting assembly 330 can prevent the first end 311 or the third end 321 from sliding along the first sliding groove 121. Specifically in this embodiment, the second mounting assembly 200 is also provided with a second sliding groove, and the second end 312 and the fourth end 322 are both provided in the second sliding groove. The scissor mechanism 300 further includes a second limiting assembly 350, and the second limiting assembly 350 limits the position of the second end 312 and the fourth end 322 with the same structural form as the first limiting assembly 330, which improves the replaceability of the telescopic device 10. Through the cooperation of the first sliding groove 121 and the first limiting assembly 330 and the cooperation of the second sliding groove and the second limiting assembly 350, the four ends of the scissor mechanism 300 can be freely switched between rotation and sliding, and it is also more convenient to adjust the folding and unfolding stroke of the scissor mechanism 300, so that the telescopic device 10 can meet more telescopic distance requirements and expand the application scenarios of the telescopic device 10.

[0046] In an embodiment, the first limiting assembly 330 includes: a limiting member 331 slidably provided in the first sliding groove 121; and a fastener 332 connecting the limiting member 331 and the first mounting assembly 100 to position the limiting member 331 in the first sliding groove 121.

[0047] With reference to FIG. 1 and FIG. 3, in this embodiment, the first limiting assembly 330 includes a limiting member 331 and a fastener 332, the limiting member 331 is inserted through the first sliding groove 121, and the fastener 332 can fix the limiting member 331 to the first mounting assembly 100. Specifically in this embodiment, the limiting member 331 is a bolt, and the fastener 332 is a nut. First sliding grooves 121 are provided at both the upper and lower sides of the guide member 120, and the bolt is inserted through the guide member 120 through the two first sliding grooves 121. When the nut is tightened on the bolt, the nut and the bolt head clamp the guide member 120 to realize the positioning of the first limiting assembly 330 itself, thereby limiting the stroke of the first end 311 or the third end 321 in the first sliding groove 121, with a simple structure, low cost and easy realization.

[0048] In an embodiment, the scissor mechanism 300 further includes: a rotating shaft 341 provided at the third end 321; and a second rolling member 342 sleeved at the outside of the rotating shaft 341, the rotating shaft 341 and the second rolling member 342 being relatively rotatable, and the third end 321 being rollably connected to the first mounting assembly 100 through the second rolling member 342.

[0049] With reference to FIG. 1 and FIG. 3, in this embodiment, the scissor mechanism 300 further includes a rotating shaft 341 and a second rolling member 342, and the rotating shaft 341 is provided at the third end 321 and inserted through the first sliding groove 121. The second rolling member 342 is sleeved at the rotating shaft 341, and the third end 321 abuts against the first mounting assembly 100 through the second rolling member 342. The sliding of the third end 321 along the first sliding groove 121 is realized through the rolling of the second rolling member 342 along the first mounting assembly 100, which reduces the frictional resistance between the third end 321 and the first mounting assembly 100, makes the sliding of the third end 321 along the first mounting assembly 100 smoother, thereby improving the smoothness of the movement of the scissor mechanism 300 and further improving the smoothness of the telescoping of the telescopic device 10, reducing the possibility of jamming of the telescopic device 10. Specifically in this embodiment, a rotating shaft 341 and a second rolling member 342 are provided at each of the first end 311, the second end 312, the third end 321 and the fourth end 322. When the four ends of the scissor mechanism 300 are switched and adjusted between rotation and sliding, the sliding smoothness can be guaranteed, and the same arrangement of the four ends also reduces the manufacturing difficulty of the scissor mechanism 300. The first supporting mechanism 400 and the second supporting mechanism 500 are provided at the corresponding rotating shaft 341. Taking the third end 321 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, so that the second rolling member 342 on the rotating shaft 341 rolls along the first mounting assembly 100. The first bracket 410 on the rotating shaft 341 moves with the rotating shaft 341, so that the first rolling member 420 on the first bracket 410 rolls along the first supporting member 610.

[0050] In an embodiment, the first mounting assembly 100 is provided with a first passage 102, and the first sliding groove 121 is in communication with the first passage 102. The rotating shaft 341 is slidably inserted through the first sliding groove 121, and the second rolling member 342 is rollably provided in the first passage 102.

[0051] With reference to FIG. 1 and FIG. 3, in this embodiment, the first mounting assembly 100 is provided with a first passage 102, and the second rolling member 342 rolls inside the first passage 102. The first passage 102 has two opposite vertical inner walls. When the telescopic device 10 extends, the second rolling member 342 rolls along one of the vertical inner walls. When the telescopic device 10 retracts, the second rolling member 342 rolls along the other one of the vertical inner walls, which ensures that the second rolling member 342 can roll along the first mounting assembly 100 whether the telescopic device 10 is extending or retracting, thereby ensuring the smoothness of the telescoping of the telescopic device 10.

[0052] In an embodiment, the first mounting assembly 100 includes: a mounting member 110; and a guide member 120 fixed at a side of the mounting member 110 facing the scissor mechanism 300, the guide member 120 being provided with the first sliding groove 121, and the mounting member 110 and the guide member 120 being enclosed to form the first passage 102.

[0053] With reference to FIG. 1 and FIG. 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 shape, and the peripheral edge of the opening is fixed to the mounting member 110 to form the first passage 102, with a simple structure and easy realization. First sliding grooves 121 are provided at both the upper and lower sides of the first passage 102, and the rotating shaft 341 is inserted through the guide member 120 through the two first sliding grooves 121, which not only ensures the stability of the rolling of the second rolling member 342 inside the first passage 102 but also facilitates the assembly of the first supporting mechanism 400. Specifically in this embodiment, the mounting member 110 is bent to form a recess recessed in a direction away from the second mounting assembly 200, the guide member 120 is provided in the recess, and the supporting member is provided outside the recess, so that the spacing between two opposite second rolling members 342 respectively provided at the first mounting assembly 100 and the second mounting assembly 200 is larger than the spacing between the first supporting mechanism 400 and the second supporting mechanism 500, which enables the first supporting mechanism 400 and the second supporting mechanism 500 to play a better supporting role, reduces the possibility of deformation of the telescopic device 10 under gravity, and makes the structure of the entire telescopic device 10 more compact and occupy a smaller space.

[0054] In this embodiment, the first supporting arm 310 is provided with an accommodating space. When the first mounting assembly 100 and the second mounting assembly 200 approach each other, the first supporting arm 310 can accommodate the second supporting arm 320 inside the accommodating 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 a smaller space.

[0055] The present application also provides a vehicle, including: the telescopic device 10 as described above; a vehicle body 20 provided with an in-vehicle space and an opening in communication with the in-vehicle space; and an extending member 30, one of the vehicle body 20 and the extending member 30 being provided with the first mounting assembly 100, the other of the vehicle body 20 and the extending member 30 being provided with the second mounting assembly 200, and the extending member 30 being configured to close the opening or move away from the in-vehicle space to open the opening through the movement of the telescopic device 10.

[0056] Referring to FIG. 4, the specific structure of the telescopic device 10 can refer to the above embodiments. Since the vehicle adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here. The vehicle may be commercial vehicles, caravans or the like. The vehicle body 20 and the extending member 30 are connected through the telescopic device 10. On the one hand, the extending member 30 can be driven to move away from the in-vehicle space to open the opening of the in-vehicle space, expand the size of the in-vehicle space and provide users with a more spacious resting space. On the other hand, the structure is simple and the telescopic device 10 occupies a small internal space of the vehicle. On the third hand, the telescopic device 10 has good vertical supporting force and is not easy to deform. When the extending member 30 moves away from the opening, the possibility and degree of falling under the action of gravity are low. When the extending member 30 moves close to the opening, the problem that the extending member 30 cannot be aligned with the opening is less likely to occur. The opening and the extending member 30 may be provided at the tail of the vehicle to expand the space in the length direction of the vehicle, or may be provided at the side of the vehicle to expand the space in the width direction of the vehicle. A first mounting bracket 21 is provided at 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 at the extending member 30. With reference to FIG. 5 to FIG. 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, which makes the fixation of the telescopic device 10 firmer and the force bearing more uniform. The mounting seat is provided with a groove corresponding to the mounting member 110, and a side of the mounting member 110 away from the guide member 120 is attached and fixed to the mounting seat, which makes the fixation of the telescopic device 10 firmer. Specifically in this embodiment, the extending member 30 is a vehicle door, but users do not enter or exit the vehicle through the vehicle door. The vehicle door has a mature manufacturing process and excellent sealing performance between the vehicle door and the opening, the vehicle door can close the opening more tightly, and the appearance of the vehicle is not affected.

[0057] In an embodiment, the vehicle further includes a guide rail and a guide groove. One of the vehicle body 20 and the extending member 30 is provided with the guide rail, the other of the vehicle body 20 and the extending member 30 is provided with the guide groove corresponding to the guide rail, and the guide rail is slidably connected to the guide groove.

[0058] In this embodiment, the vehicle further includes a guide rail and a guide groove, which guide the extending member 30 to make the track of the extending member 30 more accurate when moving away from or close to the in-vehicle space. In addition, the guide rail and the guide groove can also provide a certain supporting force for the extending member 30, further reducing the possibility of falling of the extending member 30 under the action of gravity after extending. Specifically in this embodiment, an end of the extending member 30 close to the ground is connected to the vehicle body 20 through the guide rail and the guide groove, and an end of the extending member 30 away from the ground is connected to the vehicle body 20 through the telescopic device 10. On the one hand, the force bearing of the extending member 30 is more uniform after extending; on the other hand, such arrangement occupies a small internal space of the vehicle and can provide more internal space of the vehicle for arranging other parts or for users' activities.

[0059] The above are only embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structural transformation made by using the contents of the specification and the accompanying drawings of the present application under the inventive concept of the present application, or direct / indirect application in other related technical fields, is included in the scope of the present application.

Examples

Embodiment Construction

[0026]The technical solutions of the embodiments of the present application will be described in more detail below with reference to the accompanying drawings. It is obvious that the embodiments to be described are only some rather than all of the embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative efforts shall fall within the scope of the present application.

[0027]It should be noted that if there are directional indications, such as up, down, left, right, front, back, etc., involved in the embodiments of the present application, the directional indications are only used to explain a certain posture as shown in the accompanying drawings. If the specific posture changes, the directional indication also changes accordingly.

[0028]In the present application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. shall be understood in a b...

Claims

1. A telescopic device, <b>characterized by comprising: a first mounting assembly; a second mounting assembly; a scissor mechanism, wherein the first mounting assembly and the second mounting assembly are provided at opposite sides of the scissor mechanism, and the scissor mechanism is drivingly connected to the first mounting assembly and the second mounting assembly to make the first mounting assembly and the second mounting assembly approach or move away from each other; and a first supporting mechanism, wherein one end of the first supporting mechanism is connected to the scissor mechanism, and the other end of the first supporting mechanism is movably connected to the first mounting assembly to support the scissor mechanism in a gravity direction.

2. The telescopic device according to claim 1, wherein a side of the first mounting assembly facing the scissor mechanism is provided with a first supporting slot, the first supporting mechanism comprises a first bracket, one end of the first bracket is connected to the scissor mechanism, the other end of the first bracket is slidably provided in the first supporting slot, and the first bracket is driven by the scissor mechanism to move linearly along the first supporting slot.

3. The telescopic device according to claim 2, wherein the first supporting mechanism further comprises a first rolling member provided at an end of the first bracket away from the scissor mechanism, and the first rolling member is rotatably connected to the first bracket and rollably connected to an inner wall of the first supporting slot.

4. The telescopic device according to claim 2, further comprising a first supporting member, wherein the first supporting member is connected to the first mounting assembly to jointly enclose to form the first supporting slot.

5. The telescopic device according to claim 1, further comprising a second supporting mechanism, wherein one end of the second supporting mechanism is connected to the scissor mechanism, the other end of the second supporting mechanism is movably connected to the second mounting assembly, and the first supporting mechanism is cooperated with the second supporting mechanism to jointly support the scissor mechanism in the gravity direction.

6. The telescopic device according to claim 1, further comprising a second supporting member connected to the second mounting assembly to jointly enclose to form a second supporting slot.

7. The telescopic device according to claim 1, wherein the scissor mechanism comprises: a first supporting arm provided with a first end rotatably connected to the first mounting assembly and a second end slidably connected to the second mounting assembly; and a second supporting arm rotatably connected to the first supporting arm, wherein the second supporting arm is provided with a third end slidably connected to the first mounting assembly and a fourth end rotatably connected to the second mounting assembly; wherein at least one of the first end and the third end is correspondingly connected to the first supporting mechanism.

8. The telescopic device according to claim 7, wherein the first mounting assembly is provided with a first sliding groove, both the first end and the third end are provided in the first sliding groove, the scissor mechanism further comprises a first limiting assembly provided in the first sliding groove, and the scissor mechanism limits a displacement of the first end and / or the third end along the first sliding groove through the first limiting assembly.

9. The telescopic device according to claim 8, wherein the first limiting assembly comprises: a limiting member slidably provided in the first sliding groove; and a fastener connecting the limiting member and the first mounting assembly to position the limiting member in the first sliding groove.

10. The telescopic device according to claim 8, wherein the scissor mechanism further comprises: a rotating shaft provided at the third end; and a second rolling member sleeved at an outside of the rotating shaft rotating relative to the second rolling member, wherein the third end is rollably connected to 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 passage, the first sliding groove is in communication with the first passage, the rotating shaft is slidably inserted through the first sliding groove, and the second rolling member is rollably provided in the first passage.

12. The telescopic device according to claim 11, wherein the first mounting assembly comprises: a mounting member; and a guide member fixed at a side of the mounting member facing the scissor mechanism, wherein the guide member is provided with the first sliding groove, and the mounting member and the guide member jointly enclose to form the first passage.

13. The telescopic device according to claim 7, wherein the second mounting assembly is provided with a second sliding groove, both the second end and the fourth end are provided in the second sliding groove, the scissor mechanism further comprises a second limiting assembly, and the second limiting assembly limits the second end and the fourth end.

14. A vehicle, <b>characterized by comprising: the telescopic device according to any one of claims 1 to 13; a vehicle body provided with an in-vehicle space and an opening in communication with the in-vehicle space; and an extending member, wherein one of the vehicle body and the extending member is provided with the first mounting assembly, the other of the vehicle body and the extending member is provided with the second mounting assembly, and the extending member closes the opening or moves away from the in-vehicle space to open the opening through a movement of the telescopic device.

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

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