Movable telescopic device

Abstract

The utility model provides a movable type telescopic device which comprises a frame, the frame is composed of a plurality of supporting frames arranged at intervals, a sliding rail is arranged on the inner side of any supporting frame, and a limiting groove is formed in the sliding rail; the scissor fork type mechanism is arranged among the multiple supporting frames, and the scissor fork type mechanism is movably connected into the sliding rail through a connecting rod set so that the scissor fork type mechanism can be switched between a retracting state and an opening state; at least one end of the connecting rod set is provided with an adjusting structure used for being matched with the limiting groove in a limiting mode. When the adjusting structure is adjusted to enter the limiting groove, the connecting rod set is limited to move relative to the sliding rail. The utility model solves the technical problem that the fireproof effect of the fireproof isolation device is reduced due to the fact that the shear fork type telescopic component of the existing fireproof isolation device is difficult to keep a stable working state and can retract when in use, and the flexible fireproof material is pulled to retract.

Description

Technical Field

[0001] This utility model relates to the field of fire protection technology, and more specifically, to a mobile telescopic device. Background Technology

[0002] Currently, vehicles on the road mainly consist of two types: electric vehicles and gasoline-powered vehicles. In parking lots, due to the high density and close spacing of parked vehicles, if a fire breaks out in one vehicle, the high temperature and flames can easily ignite adjacent vehicles through heat radiation and splashing, creating a chain reaction and exacerbating the fire's scale.

[0003] To address such potential hazards, existing technical solutions have deployed fire-resistant isolation devices. A typical implementation method involves placing the device in the gap between adjacent parking spaces. By driving the built-in scissor-type telescopic component to extend to the working state, it simultaneously pulls the flexible fireproof material linked to it to complete the extension action, thereby creating a physical isolation barrier between adjacent vehicles and blocking the path of fire source transmission.

[0004] However, the relevant technology has at least one of the following problems: because the scissor telescopic assembly is difficult to maintain a stable working state, it will retract, thereby pulling the flexible fireproof material back, thus reducing the fireproof effect of the fireproof isolation device. Utility Model Content

[0005] The technical problem solved by this utility model is that the scissor-type telescopic component is difficult to maintain a stable working state, which leads to its retraction, thereby pulling the flexible fireproof material back and reducing the fireproof effect of the fireproof isolation device.

[0006] To address the aforementioned problems, this utility model provides a mobile telescopic device, comprising: a frame composed of multiple spaced support frames, each support frame having an inner slide rail with a limiting groove; a scissor mechanism disposed between the multiple support frames and movably connected to the slide rail via a connecting rod assembly to switch between a retracted state and an extended state; at least one end of the connecting rod assembly having an adjustment structure for limiting engagement with the limiting groove; wherein, when the adjustment structure is adjusted into the limiting groove, the movement of the connecting rod assembly relative to the slide rail is restricted.

[0007] Compared with existing technologies, the technical effects achieved by this technical solution are as follows: Specifically, when the scissor mechanism is adjusted to the open state, by setting an adjustment structure, the position of the connecting rod assembly on the slide rail is locked in the limiting groove, which effectively avoids the scissor mechanism from retracting due to the movement of the connecting rod assembly in the slide rail, thereby ensuring the stability of the mobile telescopic device.

[0008] In one embodiment of this utility model, the connecting rod assembly includes a first rod and a second rod located within any support frame; the first rod is rotatably connected to the first end of the scissor mechanism, and the second rod is located below the first rod and rotatably connected to the second end of the scissor mechanism; wherein, at least one of the first rod and the second rod is provided with an adjustment structure, and by adjusting the adjustment structure to enter or disengage from the corresponding limiting groove, the scissor mechanism is in a retracted state or an open state.

[0009] Compared with existing technologies, the technical effects achieved by this solution are as follows: In a specific example, both the ends of the first and second rods are equipped with adjustment structures. During the transition between the retracted and extended states of the scissor mechanism, at least one of the connected first and second rods moves within the slide rail. Therefore, by utilizing the coordination of the adjustment structure and the limiting groove, the first and second rods are effectively limited to the positions of the limiting grooves, thereby locking or maintaining the state of the scissor mechanism. In practical fire protection scenarios, this ensures that the mobile telescopic device can be stably maintained in its working state, i.e., the scissor mechanism is in the extended state, thus ensuring the fire protection effect.

[0010] In one embodiment of this utility model, a first connecting rod group is defined as a connecting rod group having a first receiving groove among multiple connecting rod groups; the end of the first connecting rod group used to cooperate with the adjustment structure has a first mating opening; the adjustment structure includes a first adjustment component, the first adjustment component includes a first adjusting member and a first elastic member; the first adjusting member is disposed in the first receiving groove of the first connecting rod group, the first elastic member is located in the first receiving groove, and applies an elastic force to the first adjusting member to extend out of the first receiving groove through the first mating opening; wherein, when the first connecting rod group is misaligned with the limiting groove, at least a portion of the structure of the first adjusting member retracts into the first receiving groove; when the first connecting rod group and the limiting groove are directly opposite each other, at least a portion of the structure of the first adjusting member enters the limiting groove;

[0011] And / or define a second connecting rod group as a second connecting rod group having a second receiving groove among multiple connecting rod groups; the adjustment structure further includes a second adjustment component, the second adjustment component including a second adjustment member and a second elastic member; the second adjustment member includes a mating part and an adjustment part that cooperate with each other; the mating part is disposed inside the second receiving groove, the adjustment part cooperates with a combination opening opened on the surface of the second connecting rod group, and is exposed outside the second connecting rod group; the second elastic member is located in the second receiving groove and applies an elastic force to the mating part to make it extend through the second mating opening of the second receiving groove; wherein, when the adjustment part is switched between a first position and a second position of the combination opening, at least a portion of the structure of the mating part extends or retracts into the second receiving groove.

[0012] Compared with existing technologies, the technical effects achieved by this technical solution are as follows: the adjustment structure, through its internal elastic element, achieves cooperation with the limiting groove, the structure is simple, and it is easy for users to operate.

[0013] In one embodiment of this utility model, when the adjustment structure includes a first adjustment component, the first adjustment component is provided with a guide structure; wherein, the guide structure enables the first connecting rod group and the corresponding limiting groove to switch between facing each other and misaligned.

[0014] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: By forming a guide structure on the first adjusting member, the resistance to pushing the support frame to drive the scissor mechanism to change between the open and retracted states is effectively reduced. Specifically, during the process of changing between the open and retracted states mentioned above, the first connecting rod group is driven to move within the slide rail, thereby realizing the misalignment of the first adjusting member with the corresponding limiting groove or its entry into the limiting groove. The setting of the guide structure reduces the resistance to taking the first adjusting member away from the limiting groove through the first mating opening, thereby reducing the difficulty of adjustment.

[0015] In one embodiment of this utility model, the guide structure has a guide plane or a guide arc surface; the first adjusting member is further provided with a connecting structure located between the guide structure and the first elastic member, and the connecting structure is connected to the guide structure; wherein, the enclosure diameter of the first mating opening is smaller than the maximum diameter of the connecting structure, so as to restrict the first adjusting member from disengaging from the first mating opening.

[0016] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: due to the limiting design of the first mating opening on the connecting structure, the first adjusting member is effectively prevented from being dislodged from the first mating opening under the elastic force of the first elastic member.

[0017] In one embodiment of this utility model, when the adjustment structure includes a first adjustment component and a second adjustment component; any connecting rod group includes a first rod and a second rod located within any support frame; at least one of the first rod and the second rod is provided with either the first adjustment component or the second adjustment component; and / or at least one of the first rod and the second rod is provided with the first adjustment component at one end and the second adjustment component at the other end.

[0018] Compared with existing technologies, the technical effects achieved by this solution are as follows: By setting a first adjustment component or a second adjustment component at both ends of the first and / or second rod, or by setting a combination of the first and second adjustment components, that is, setting the first adjustment component at one end of either the first or second rod and the second adjustment component at the other end, the flexible combination design of the first rod, the second rod, the first adjustment component, and the second adjustment component described above allows users to easily achieve a stable transition between the retracted and extended states of the scissor mechanism during the pushing and pulling of the support frame.

[0019] In one embodiment of this utility model, when the adjustment structure includes a second adjustment component, the combined opening includes a first opening and a second opening that are interconnected; the first opening is located at one end of the second opening near the second mating opening, and the first opening extends circumferentially along the second connecting rod assembly, while the second opening extends axially along the second connecting rod assembly; wherein, when the adjustment part is in the position of the first opening, the second elastic member causes at least a portion of the mating part to extend out of the second mating opening; when the adjustment part is at one end of the second opening away from the first opening, at least a portion of the mating part retracts into the second receiving groove.

[0020] Compared with the prior art, the technical effects achieved by this technical solution are as follows: Specifically, when the second connecting rod assembly is misaligned with the limiting groove, the mating part is stopped by the slide rail, causing it to retract into the second receiving groove; when the second connecting rod assembly moves to be directly opposite the limiting groove, the mating part, under the elastic force of the second elastic element, disengages from the second receiving groove through the second mating opening and then enters the corresponding limiting groove, thereby completing the locking effect on the second connecting rod assembly. To ensure a stable fit between the mating part and the limiting groove, the position of the adjusting part in the combined opening is moved from the second opening toward the first opening, and then the adjusting part is moved along the extension direction of the first opening, i.e., circumferential movement. Combining the structural characteristics of the first and second openings, for example, the two form an "L" shape on the surface of the second connecting rod assembly, the adjusting part is then positioned away from the intersection of the first and second openings, thus ensuring a stable fit between the mating part and the limiting groove. Conversely, by moving the adjusting part from the first opening to the second opening, the second elastic element is compressed, thereby pulling the mating part away from the limiting groove, that is, retracting the mating part into the second receiving groove, and then moving the second connecting rod assembly to make it misaligned with the limiting groove.

[0021] In one embodiment of this utility model, when the adjustment structure includes a first adjustment component and a second adjustment component; the support frame located at both ends of the plurality of support frames is defined as the first support frame, and the support frame located in the middle of the plurality of support frames is defined as the second support frame; wherein, the second adjustment component cooperates with the first support frame; and the first adjustment component cooperates with the second support frame.

[0022] Compared with existing technologies, the technical effects achieved by this solution are as follows: By setting the first and second adjustment components, the stability of the mobile telescopic device is ensured, thereby guaranteeing its fire resistance. Furthermore, placing the second adjustment component at the location of the first support frame, rather than at the location of the second support frame, facilitates user operation.

[0023] In one embodiment of this utility model, the movable telescopic device further includes a protective cover, which is disposed on at least one of the multiple support frames located at both ends; wherein the protective cover is provided with a pull handle for pulling; and / or the movable telescopic device further includes a flexible fireproof material, which is disposed on at least one side of the frame; wherein, when the scissor mechanism switches between a retracted state and an open state, it drives the flexible fireproof material to switch between an unfolded state and a retracted state; and / or the movable telescopic device further includes a pulley assembly, which is disposed at the bottom of the frame.

[0024] Compared with existing technologies, the technical effects achieved by adopting this technical solution are as follows: On the one hand, by setting up protective covers, the fire is effectively prevented from entering the interior of the mobile telescopic device from both ends and damaging the internal structure; on the other hand, by setting up pull handles, the difficulty of changing the scissor mechanism to the open state is reduced; in addition, by setting up pulley assemblies, the mobile telescopic device can be easily moved, and the scissor mechanism can be more flexible in switching between the retracted and open states.

[0025] In one embodiment of this invention, the movable telescopic device further includes a restraint member for binding to the circumferential surface of the frame to restrict the opening of the scissor mechanism.

[0026] Compared with existing technologies, the technical effects achieved by this technical solution are as follows: when the mobile telescopic device includes a restraint component, the restraint component can be used to fit on the outer surface of the frame to restrict the opening of the scissor mechanism, reduce its footprint, and facilitate storage.

[0027] By adopting the technical solution of this utility model, the following technical effects can be achieved:

[0028] (1) Specifically, when the scissor mechanism is adjusted to the open state, an adjustment structure is set to lock the position of the connecting rod group on the slide rail in the limiting groove, which effectively avoids the scissor mechanism from retracting due to the movement of the connecting rod group in the slide rail, thereby ensuring the stability of the mobile telescopic device.

[0029] (2) When the second connecting rod assembly is misaligned with the limiting groove, the mating part is stopped by the slide rail, causing it to retract into the second receiving groove. When the second connecting rod assembly moves to be aligned with the limiting groove, the mating part, under the elastic force of the second elastic element, disengages from the second receiving groove through the second mating opening and enters the corresponding limiting groove, thereby completing the locking effect on the second connecting rod assembly. To ensure the stable mating of the mating part and the limiting groove, the position of the adjusting part in the combined opening is moved from the second opening toward the first opening, and then the adjusting part is moved along the extension direction of the first opening, i.e., circumferential movement. Combining the structural characteristics of the first opening and the second opening, for example, the two form an "L" shape on the surface of the second connecting rod assembly, the adjusting part is then locked at a position far away from the intersection of the first opening and the second opening, thereby ensuring the stable mating of the mating part and the limiting groove. Conversely, by moving the adjusting part from the first opening to the second opening, the second elastic element is compressed, thereby taking the mating part away from the limiting groove, that is, the mating part is retracted into the second receiving groove, and then the second connecting rod group is moved to make it misaligned with the limiting groove.

[0030] (3) On the one hand, by setting up protective covers, the fire is effectively prevented from entering the interior of the mobile telescopic device from both ends and damaging the internal structure; on the other hand, by setting up pull handles, the difficulty of changing the scissor mechanism into the open state is reduced. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 A schematic diagram of a movable telescopic device in an open state, provided by an embodiment of this utility model;

[0033] Figure 2 for Figure 1 A schematic diagram of a local structure in the image;

[0034] Figure 3 for Figure 1 A schematic diagram of the second support frame from another perspective;

[0035] Figure 4 for Figure 3 A cross-sectional view along the aa direction;

[0036] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0037] Figure 6 for Figure 2 Enlarged view of point B in the middle;

[0038] Figure 7 A structural schematic diagram of the first support frame, the first rod, and the second rod;

[0039] Figure 8 for Figure 7 A schematic diagram showing the interaction between the first rod and the second adjustment assembly from another perspective;

[0040] Figure 9 for Figure 8 A structural diagram from another perspective;

[0041] Figure 10 for Figure 9 A sectional view along the middle bb direction;

[0042] Figure 11 for Figure 7 A cross-sectional view of the cooperation relationship between the first rod, the first adjusting assembly, and the second adjusting assembly from another perspective;

[0043] Figure 12 This is a schematic diagram of a mobile telescopic device in a retracted state, provided as an embodiment of the present invention.

[0044] Explanation of reference numerals in the attached figures:

[0045] 100. Movable telescopic device; 11. First support frame; 12. Second support frame; 13. Slide rail; 131. Limiting groove; 20. Scissor mechanism; 21. First end; 22. Second end; 31. First connecting rod assembly; 311. First mating opening; 312. First receiving groove; 313. Combined opening; 314. First opening; 315. Second opening; 32. Second connecting rod assembly; 321. Second mating opening; 322. Second receiving groove; 323. 324. First rod; 41. Second rod; 42. First adjusting assembly; 411. First adjusting member; 412. First elastic member; 413. Guide structure; 414. Connecting structure; 415. Guide arc surface; 42. Second adjusting assembly; 421. Second adjusting member; 422. Second elastic member; 423. Mating part; 424. Adjusting part; 51. Protective cover; 511. Pull handle; 52. Flexible fireproof material; 53. Restraining member; 54. Pulley assembly. Detailed Implementation

[0046] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0047] See Figure 1This is a structural schematic diagram of a movable telescopic device 100 provided in an embodiment of this utility model. Combined with... Figures 2-10 Specifically, the movable telescopic device 100 includes, for example, a frame and a scissor mechanism 20; the frame consists of multiple spaced support frames, and each support frame has a slide rail 13 on its inner side, with a limiting groove 131 inside the slide rail 13; the scissor mechanism 20 is disposed between the multiple support frames and is movably connected to the slide rail 13 via a connecting rod assembly to switch between a retracted state and an open state; at least one end of the connecting rod assembly is provided with an adjustment structure for limiting and engaging with the limiting groove 131; wherein, when the adjustment structure is adjusted into the limiting groove 131, the movement of the connecting rod assembly relative to the slide rail 13 is restricted.

[0048] Specifically, when the scissor mechanism 20 is adjusted to the open state, an adjustment structure is set to lock the corresponding position of the connecting rod assembly on the slide rail 13 in the limiting groove 131, which effectively prevents the scissor mechanism 20 from retracting due to the movement of the connecting rod assembly in the slide rail 13, thereby ensuring the stability of the mobile telescopic device 100.

[0049] Combination Figure 2 and Figure 10 Preferably, the connecting rod assembly includes a first rod 323 and a second rod 324 located within any support frame; the first rod 323 is rotatably connected to the first end 21 of the scissor mechanism 20, and the second rod 324 is located below the first rod 323 and rotatably connected to the second end 22 of the scissor mechanism 20; wherein, at least one of the first rod 323 and the second rod 324 is provided with an adjustment structure, which can be adjusted to enter or exit the corresponding limiting groove 131 to make the scissor mechanism 20 be in a retracted state or an open state.

[0050] In a specific example, both the ends of the first rod 323 and the second rod 324 are equipped with adjustment structures. During the transition between the retracted and extended states of the scissor mechanism 20, at least one of the connected first rod 323 and second rod 324 moves within the slide rail 13. Thus, by utilizing the adjustment structure in conjunction with the limiting groove 131, the first rod 323 and the second rod 324 are effectively limited to the position of the limiting groove 131, thereby locking or maintaining the state of the scissor mechanism 20. Combined with actual fire prevention scenarios, this ensures that the mobile telescopic device 100 can be stably maintained in its working state, i.e., the scissor mechanism 20 is in the extended state, thus ensuring the fire prevention effect.

[0051] In another specific embodiment, the adjustment structure can be disposed on either the first rod 323 or the second rod 324. For example, the adjustment structure can be disposed at the end of the first rod 323, while the second rod 324 is fixedly connected to the support frame, specifically by screw connection. Thus, during the transition between the retracted state and the open state of the scissor mechanism 20, the first rod 323 connected to it will move within the slide rail 13. In turn, by utilizing the cooperation between the adjustment structure and the limiting groove 131, the first rod 323 is effectively limited to the position of the limiting groove 131, thereby locking or maintaining the state of the scissor mechanism 20.

[0052] Alternatively, the end of the second rod 324 can be equipped with an adjustment structure, while the first rod 323 is fixed to the support frame by a screw connection; this will not be elaborated further here. It should be noted that there can be multiple limiting grooves 131 within any slide rail 13, arranged sequentially along the direction of the slide rail. The first rod 323 or the second rod 324 is horizontally positioned within the slide rail 13 to engage with two opposing limiting grooves 131 at the same horizontal level within the slide rail 13.

[0053] Combination Figures 2-5 Preferably, a first connecting rod group 31 is defined as the connecting rod group 31 among multiple connecting rod groups that has a first receiving groove 312; the end of the first connecting rod group 31 that is used to cooperate with the adjustment structure has a first mating opening 311; the adjustment structure includes a first adjustment component 41, which includes a first adjustment member 411 and a first elastic member 412; the first adjustment member 411 is in contact with the first elastic member 412, and the first adjustment member 411 is disposed in the first receiving groove 312 of the first connecting rod group 31; the first elastic member 412 is located in the first receiving groove 312 and applies an elastic force to the first adjustment member 411 to make it extend out of the first receiving groove 312 through the first mating opening 311; wherein, when the first connecting rod group 31 is misaligned with the limiting groove 131, at least a part of the structure of the first adjustment member 411 retracts into the first receiving groove 312; when the first connecting rod group 31 is directly opposite the limiting groove 131, at least a part of the structure of the first adjustment member 411 enters the limiting groove 131.

[0054] Combination Figures 6-10Preferably, the connecting rod group with the second receiving groove 322 among the multiple connecting rod groups is defined as the second connecting rod group 32; the adjustment structure includes a second adjustment component 42, the second adjustment component 42 includes a second adjustment member 421 and a second elastic member 422; the second adjustment member 421 includes a mating part 423 and an adjustment part 424 that cooperate with each other; the mating part 423 contacts the second elastic member 422, and the adjustment part 424 cooperates with the combination opening 313 opened on the surface of the second connecting rod group 32 and is exposed outside the second connecting rod group; the second elastic member 422 is located in the second receiving groove 322 and applies an elastic force to the mating part 423 to make it extend through the second mating opening 321 of the second receiving groove 322; wherein, when the adjustment part 424 is adjusted to switch between the first position and the second position of the combination opening 313, at least a part of the structure of the mating part 423 extends or retracts into the second receiving groove 322.

[0055] For example, the mating part 423 and the adjusting part 424 can be mated by welding or screwing.

[0056] Preferably, when the adjustment structure includes a first adjustment component 41, the first adjustment component 411 is provided with a guide structure 413; wherein, the guide structure 413 enables the first connecting rod group 31 and the corresponding limiting groove 131 to switch between facing each other and misaligned.

[0057] By forming a guide structure 413 on the first adjusting member 411, the resistance to pushing the support frame to drive the scissor mechanism 20 to change between the open and retracted states is effectively reduced. Specifically, during the process of changing between the open and retracted states, the first connecting rod group 31 is driven to move within the slide rail 13, thereby realizing the misalignment of the first adjusting member 411 with the corresponding limiting groove 131 or entering the limiting groove 131. The setting of the guide structure 413 reduces the resistance to taking the first adjusting member 411 away from the limiting groove 131 through the first mating opening 311, thereby reducing the difficulty of adjustment.

[0058] Preferably, the guide structure 413 has a guide plane or a guide arc surface 415; the first adjusting member 411 is further provided with a connecting structure 414 located between the guide structure 413 and the first elastic member 412, and the connecting structure 414 is connected to the guide structure 413; wherein, the enclosing diameter of the first mating opening 311 is smaller than the maximum diameter of the connecting structure 414, so as to restrict the first adjusting member 411 from disengaging from the first mating opening 311.

[0059] Furthermore, the first adjusting member 411 is a spherical structure; the enclosing diameter of the first mating opening 311 is smaller than the maximum diameter of the spherical structure. This effectively prevents the first adjusting member 411 from dislodging from the first mating opening 311 under the elastic force of the first elastic member 412. Specifically, the spherical structure can be a hemisphere or an ellipsoid; and when the first adjusting member 411 has a guide plane, it can specifically be a triangular prism or a trapezoidal prism, which will not be specifically exemplified here.

[0060] In a specific example, the first connecting rod assembly 31 can be made of stainless steel. After the spherical structure is installed into the first receiving groove 312, in order to prevent the spherical structure from coming out of the first receiving groove 312, the port position of the first connecting rod assembly 31 can be bent to form a first mating opening 311 that can restrict the spherical structure from coming out.

[0061] Combination Figure 4 , Figure 10 and Figure 11 Preferably, when the adjustment structure includes a first adjustment component 41 and a second adjustment component 42, any connecting rod group includes a first rod 323 and a second rod 324 located within any support frame; at least one of the first rod 323 and the second rod 324 is provided with either the first adjustment component 41 or the second adjustment component 42; and / or at least one of the first rod 323 and the second rod 324 is provided with the first adjustment component 41 at one end and the second adjustment component 42 at the other end.

[0062] See also Figure 4 , Figure 10 and Figure 11 Furthermore, taking the first rod 323 as an example, a first adjustment component 41 can be provided at one end of the first rod 323, and a first adjustment component 41 can also be provided at the other end; of course, a second adjustment component 42 can also be provided at one end of the first rod 323, and a second adjustment component 42 can also be provided at the other end.

[0063] Furthermore, either end of the first rod 323 may be provided with a first adjustment component 41, and the other end opposite to it may be provided with a second adjustment component 42.

[0064] Furthermore, the arrangement between the second lever 324 and the first adjustment component 41 and the second adjustment component 42 is the same as that between the first lever 323 and the first adjustment component 41 and the second adjustment component 42, and will not be described again here.

[0065] Furthermore, when the adjustment structure includes the second adjustment component 42, the combined opening 313 includes a first opening 314 and a second opening 315 connected to each other; the first opening 314 is located at one end near the second mating opening 321 relative to the second opening 315, and the first opening 314 extends circumferentially along the second connecting rod assembly 32, while the second opening 315 extends axially along the second connecting rod assembly 32; wherein, when the adjustment part 424 is in the position of the first opening 314, the second elastic member 422 causes the mating part 423 to at least partially extend out of the second mating opening 321; when the adjustment part 424 is at the end of the second opening 315 away from the first opening 314, the mating part 423 is retracted into the second receiving groove 322.

[0066] Specifically, when the second connecting rod assembly 32 is misaligned with the limiting groove 131, the mating part 423 is stopped by the slide rail 13, causing it to retract into the second receiving groove 322; when the second connecting rod assembly 32 moves to be directly opposite the limiting groove 131, the mating part 423, under the elastic force of the second elastic member 422, disengages from the second receiving groove 322 through the second mating opening 321 and then enters the corresponding limiting groove 131, thereby completing the locking effect on the second connecting rod assembly 32. To ensure a stable fit between the mating part 423 and the limiting groove 131, the position of the adjusting part 424 in the combined opening 313 is moved from the second opening 315 toward the first opening 314, and then the adjusting part 424 is moved along the extension direction of the first opening, that is, it makes a circumferential movement around the surface of the second connecting rod assembly 32. Combining the structural characteristics of the first opening 314 and the second opening 315, for example, the first opening 314 and the second opening 315 form an "L" shape on the surface of the second connecting rod assembly 32, the adjusting part 424 is then positioned away from the intersection of the first opening 314 and the second opening 315, thereby ensuring a stable fit between the mating part 423 and the limiting groove 131. Conversely, when the adjusting part 424 is moved from the first opening 314 to the second opening 315, the second elastic member 422 is compressed, thereby taking the mating part 423 away from the limiting groove 131, that is, the mating part 423 is retracted into the second receiving groove 322, and then the second connecting rod group 32 is moved so that it is misaligned with the limiting groove 131.

[0067] For example, the first elastic element 412 and the second elastic element 422 can each be a spring structure.

[0068] Preferably, when the adjustment structure includes a first adjustment component 41 and a second adjustment component 42, the support frame located at both ends of the plurality of support frames is defined as the first support frame 11, and the support frame located in the middle of the plurality of support frames is defined as the second support frame 12; wherein, the second adjustment component 42 cooperates with the first support frame 11; and the first adjustment component 41 cooperates with the second support frame 12. By setting the first adjustment component 41 and the second adjustment component 42, the stability of the mobile telescopic device 100 in use is ensured, thereby guaranteeing the fireproof effect of the mobile telescopic device 100. Moreover, by setting the second adjustment component 42 at the position of the first support frame 11, it is easier for the user to operate it compared to setting it at the position of the second support frame 12.

[0069] Preferably, the mobile telescopic device 100 further includes a protective cover 51, which is disposed on the side of the first support frame 11 away from the second support frame 12; wherein the protective cover 51 is provided with a pulling handle 511 for pulling. On the one hand, by providing the protective cover 51, fire is effectively prevented from entering the interior of the mobile telescopic device 100 from both ends and damaging the internal structure; on the other hand, by providing the pulling handle 511, the difficulty of changing the scissor mechanism 20 into the open state is reduced.

[0070] Preferably, the movable telescopic device 100 further includes a fire-resistant flexible material 52, which is disposed on at least one side of the frame; wherein, when the scissor mechanism 20 switches between a retracted state and an open state, it drives the fire-resistant flexible material 52 to switch between an unfolded state and a retracted state.

[0071] Preferably, the mobile telescopic device 100 further includes a pulley assembly 54, which is disposed at the bottom of the frame. By providing the pulley assembly 54, the mobile telescopic device 100 can be easily moved, and the scissor mechanism 20 can be more flexible in switching between the retracted and extended states.

[0072] Combination Figure 12 Preferably, the mobile telescopic device 100 further includes a restraining member 53, which is used to bind to the circumferential surface of the frame to restrict the opening of the scissor mechanism 20; and / or, the fire-resistant flexible material 52 of the mobile telescopic device 100 is made of ceramic silicone rubber. When the mobile telescopic device 100 includes the restraining member 53, the restraining member 53 can be fitted onto the outer surface of the frame to restrict the opening of the scissor mechanism 20, reduce its footprint, and facilitate storage.

[0073] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A mobile telescopic device, characterized in that, include: The frame is composed of multiple spaced support frames, and each of the support frames is provided with a slide rail (13) on its inner side, and the slide rail (13) is provided with a limiting groove (131). A scissor mechanism (20) is disposed between multiple support frames and is movably connected to the slide rail (13) via a connecting rod assembly to switch between a retracted state and an open state. At least one end of the connecting rod assembly is provided with an adjustment structure for limiting and cooperating with the limiting groove (131); When the adjustment structure is adjusted to enter the limiting groove (131), the movement of the connecting rod assembly relative to the slide rail (13) is restricted.

2. The mobile telescopic device according to claim 1, characterized in that, The connecting rod assembly includes a first rod (323) and a second rod (324) located within any of the support frames; The first rod (323) is rotatably connected to the first end (21) of the scissor mechanism (20), and the second rod (324) is located below the first rod (323) and is rotatably connected to the second end (22) of the scissor mechanism (20); At least one of the first rod (323) and the second rod (324) is provided with the adjustment structure. By adjusting the adjustment structure to enter or exit the corresponding limiting groove (131), the scissor mechanism (20) is in the retracted state or the open state.

3. The mobile telescopic device according to claim 1 or 2, characterized in that, The first connecting rod group (31) is defined as the connecting rod group that has a first receiving groove (312) among the multiple connecting rod groups. The first connecting rod assembly (31) has a first mating opening (311) at the end that mates with the adjustment structure; The adjustment structure includes a first adjustment component (41), which includes a first adjustment member (411) and a first elastic member (412). The first adjusting member (411) is disposed inside the first receiving groove (312); The first elastic member (412) is located in the first receiving groove (312) and applies an elastic force to the first adjusting member (411) to make it extend out of the first receiving groove (312) through the first mating opening (311); When the first connecting rod assembly (31) is misaligned with the limiting groove (131), at least a portion of the structure of the first adjusting member (411) retracts into the first receiving groove (312); when the first connecting rod assembly (31) is directly opposite the limiting groove (131), at least a portion of the structure of the first adjusting member (411) enters the limiting groove (131). and / or The connecting rod group with a second receiving groove (322) among the multiple connecting rod groups is defined as the second connecting rod group (32); The adjustment structure includes a second adjustment component (42), which includes a second adjustment member (421) and a second elastic member (422). The second adjusting member (421) includes a mating part (423) and an adjusting part (424) that cooperate with each other; the mating part (423) is disposed in the second receiving groove (322), and the adjusting part (424) cooperates with the combination opening (313) opened on the surface of the second connecting rod assembly (32) and is exposed outside the second connecting rod assembly; The second elastic member (422) is located in the second receiving groove (322) and applies an elastic force to the mating part (423) to extend it through the second mating opening (321) of the second receiving groove (322); When the adjustment part (424) is adjusted to switch between the first position and the second position of the combined opening (313), at least a portion of the structure of the mating part (423) extends or retracts into the second receiving groove (322).

4. The mobile telescopic device according to claim 3, characterized in that, When the adjustment structure includes a first adjustment component (41), the first adjustment component (411) is provided with a guide structure (413). The guide structure (413) enables the first connecting rod group (31) and the corresponding limiting groove (131) to switch between the facing arrangement and the misaligned arrangement.

5. The mobile telescopic device according to claim 4, characterized in that, The guide structure (413) has a guide plane or a guide arc surface (415); The first adjusting member (411) is further provided with a connecting structure (414) located between the guide structure (413) and the first elastic member (412), and the connecting structure (414) is interconnected with the guide structure (413); Wherein, the enclosing diameter of the first mating opening (311) is smaller than the maximum diameter of the connecting structure (414) to restrict the first adjusting member (411) from dislodging from the first mating opening (311).

6. The mobile telescopic device according to claim 3, characterized in that, When the adjustment structure includes a first adjustment component (41) and a second adjustment component (42); Each of the connecting rod assemblies includes a first rod (323) and a second rod (324) located within any of the support frames; At least one of the first rod (323) and the second rod (324) is provided with either the first adjusting assembly (41) or the second adjusting assembly (42); and / or At least one of the first rod (323) and the second rod (324) has the first adjustment component (41) at one end and the second adjustment component (42) at the other end.

7. The mobile telescopic device according to claim 3, characterized in that, When the adjustment structure includes a second adjustment component (42), the combined opening (313) includes a first opening (314) and a second opening (315) that are connected to each other. The first opening (314) is located at one end of the second opening (315) near the second mating opening (321), and the first opening (314) extends circumferentially along the second connecting rod assembly (32), while the second opening (315) extends axially along the second connecting rod assembly (32). When the adjusting part (424) is in the position of the first opening (314), the second elastic member (422) causes at least a portion of the structure of the mating part (423) to extend out of the second mating opening (321); when the adjusting part (424) is on the side of the second opening (315) away from the first opening (314), at least a portion of the structure of the mating part (423) is retracted into the second receiving groove (322).

8. The mobile telescopic device according to claim 3, characterized in that, When the adjustment structure includes a first adjustment component (41) and a second adjustment component (42); The support frame located at both ends of the plurality of support frames is defined as the first support frame (11), and the support frame located in the middle of the plurality of support frames is defined as the second support frame (12). The second adjustment component (42) cooperates with the first support frame (11); the first adjustment component (41) cooperates with the second support frame (12).

9. The mobile telescopic device according to claim 1, characterized in that, The movable telescopic device further includes a protective cover (51), which is disposed on at least one of the plurality of support frames located at both ends; wherein the protective cover (51) is provided with a pulling handle (511) for pulling; and / or The movable telescopic device further includes a fire-resistant flexible material (52) disposed on at least one side of the frame; wherein, when the scissor mechanism (20) switches between the retracted state and the extended state, it drives the fire-resistant flexible material (52) to switch between the deployed state and the retracted state; and / or The movable telescopic device also includes a pulley assembly (54) located at the bottom of the frame.

10. The movable telescopic device according to claim 1 or 9, characterized in that, The movable telescopic device also includes a restraint (53) for binding to the circumferential surface of the frame to restrict the opening of the scissor mechanism (20).

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