Seat lifting device with multiple supporting rods and electric vehicle

Abstract

According to the multi-supporting-rod seat lifting device and the electric vehicle comprising the multi-supporting-rod seat lifting device, the main supporting rod is combined with the at least one auxiliary supporting rod, the main supporting rod can conduct main loading, and the at least one auxiliary supporting rod can disperse dynamic stress and share radial stress; the problems that a traditional single supporting rod is provided with a single longitudinal stress path, loads are concentrated in the middle of a rod body, so that the bending moment is too large, and port fatigue is loose and becomes large are avoided, and the overall service life is longer. Meanwhile, one-rod or multi-rod unlocking of the main supporting rod or at least one auxiliary supporting rod can be achieved through the self-locking adjusting mechanism, and multi-rod unlocking can be achieved through single-time pressing.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle seat adjustment technology, and in particular to a seat lifting device with multiple support rods and an electric vehicle including the device. Background Technology

[0002] Traditional electric bicycle seats typically employ a simple support rod connection method, characterized by a single-arm swingarm structure: some electric bicycles use a single-arm swingarm structure, which connects the seat to the frame via a single support rod, simplifying the installation and disassembly process while reducing costs.

[0003] Support bar material and connection method: The support bar is generally made of aluminum or steel and is bolted to the frame to ensure structural stability and durability. Adjustment function: Some seat support bars are designed to allow for height and angle adjustment to suit the needs of different riders. For example, the seat bar can be secured using a quick-release or tightenable clamp.

[0004] Traditional electric vehicle seats use a single-support rod lifting design. This single support rod employs a single longitudinal force path, concentrating the load in the middle of the rod and leading to excessive bending moments, especially when the seat height is high. The rear seat rod relies on only a single point of fixation, which easily causes stress concentration, resulting in rod bending or fatigue-induced loosening at the connection point, potentially leading to accidental unlocking and posing a safety hazard. Therefore, a multi-support rod seat lifting device is urgently needed to solve these problems. Utility Model Content

[0005] This application provides a seat lifting device with multiple support rods and an electric vehicle including the device. The seat uses a main support rod combined with at least one auxiliary support rod. The main support rod can bear the main load, and the at least one auxiliary support rod can distribute dynamic stress and radial stress. This avoids the single longitudinal force path of traditional single support rods, where the load is concentrated in the middle of the rod, resulting in excessive bending moment and increased fatigue at the ends, thus extending the overall service life. At the same time, a self-locking adjustment mechanism can unlock one or more rods, including the main support rod or at least one auxiliary support rod.

[0006] An embodiment of this application provides a multi-support rod seat lifting device, comprising:

[0007] Telescopic support, used to connect the main body of the electric vehicle;

[0008] The main support rod is vertically inserted into the telescopic support and can slide along the axial direction of the telescopic support.

[0009] At least one auxiliary support rod is vertically inserted into the telescopic support and is arranged parallel to the side of the main support rod;

[0010] A saddle assembly is connected to the top of the at least one auxiliary support rod and the main support rod;

[0011] A self-locking adjustment mechanism is disposed on the top of the telescopic support. The limiting end of the self-locking adjustment mechanism can be inserted radially along the main support rod and / or the at least one auxiliary support rod, and can limit the sliding of the main support rod and / or the at least one auxiliary support rod on the telescopic support.

[0012] Furthermore, as a more preferred embodiment of this utility model:

[0013] The outer wall of the main support rod is provided with a plurality of first slots evenly distributed along the axial direction;

[0014] The structural dimensions of the at least one auxiliary support rod are the same as those of the main support rod;

[0015] The main support rod and one of the auxiliary support rods are evenly distributed on the telescopic support.

[0016] Furthermore, as a more preferred embodiment of this utility model:

[0017] The at least one auxiliary support rod is less than or equal to the main support rod;

[0018] The outer wall of the main support rod is provided with a plurality of second slots evenly distributed along the axial direction;

[0019] The main support rod is provided in the middle of the telescopic support;

[0020] At least one auxiliary support rod is provided on each side of the main support rod.

[0021] Furthermore, as a more preferred embodiment of this utility model:

[0022] The telescopic support includes:

[0023] The first sliding cavity can be inserted into the main support rod and slidably connected to the main support rod;

[0024] At least one second sliding cavity is capable of being inserted into and slidably connected to the at least one auxiliary support rod.

[0025] Furthermore, as a more preferred embodiment of this utility model:

[0026] The self-locking adjustment mechanism includes:

[0027] A latching component, comprising at least one latching end and an unlatching end, wherein the at least one latching end retracts when the unlatching end is pressed; and an installation window for mounting the latching component is provided on the top of the telescopic support.

[0028] A limiting cover is detachably connected to the top of the telescopic support, and the buckle component can be clamped and fixed in the mounting window by the limiting cover;

[0029] The at least one snap-fit ​​end can be snapped into the first slot of the main support rod and / or the at least one auxiliary support rod.

[0030] Furthermore, as a more preferred embodiment of this utility model:

[0031] The saddle assembly includes:

[0032] A seat cushion for riding in;

[0033] The transfer connecting plate is detachably connected to the seat cushion at the top and has a horizontally arranged guide rail at the bottom.

[0034] A support plate is used to connect to the top of the main support rod and the at least one auxiliary support rod, and its top is provided with a guide groove adapted to the guide rail; the guide rail is slidably connected to the guide groove.

[0035] A locking element is movably connected to the support plate, one end of which can be displaced toward the intermediate connecting plate and abut against it to limit the displacement of the guide rail in the guide groove.

[0036] Furthermore, as a more preferred embodiment of this utility model:

[0037] The guide rail is provided with multiple limiting holes, and the support plate is provided with through threaded holes;

[0038] The outer periphery of the locking member is threadedly connected to the threaded hole; one end of the locking member can be screwed into the limiting socket to limit the displacement of the guide rail in the guide groove.

[0039] Furthermore, as a more preferred embodiment of this utility model:

[0040] The latching component includes:

[0041] The housing has at least one movable hole that matches at least one snap-fit ​​end, and the at least one snap-fit ​​end can extend out from the at least one movable hole;

[0042] At least one first movable block is disposed inside the housing, with at least one snap-on end provided on one side wall and an inclined travel groove provided on the other side wall;

[0043] A first elastic element is disposed inside the housing. The movable end of the first elastic element abuts against the at least one first movable block. The first elastic element is capable of keeping the at least one snap-fit ​​end out of the at least one movable hole.

[0044] The second movable block is disposed inside the housing. The second movable block can move perpendicular to the extension and retraction direction of the at least one snap-fit ​​end. One side of the second movable block is provided with a protrusion for inserting into the stroke groove. The second movable block can be moved under the action of external force. The protrusion can slide along the stroke groove and drive the at least one snap-fit ​​end to retract.

[0045] A second elastic element is disposed inside the housing. The movable end of the second elastic element abuts against the second movable block. The elastic force of the first elastic element enables the protrusion to be maintained in the initial position of the travel groove.

[0046] The drive rod has one end connected to the second movable block and the other end extending out of the housing. The drive rod is slidably connected to the housing.

[0047] Based on the same inventive concept, this utility model also provides an electric vehicle with a seat lifting mechanism featuring multiple support rods, comprising:

[0048] The aforementioned multi-support rod seat lifting device;

[0049] The vehicle body body, wherein the seat lifting device with multiple support rods is detachably connected to the middle part of the vehicle body body;

[0050] The rear wheel bracket is rotatably connected to the bottom of the seat lifting device with multiple support rods via a pivot.

[0051] The rear wheel shock absorber is rotatably connected at one end to the middle of the seat lifting device with multiple support rods, and rotatably connected at the other end to the middle of the rear wheel bracket.

[0052] Furthermore, as a more preferred embodiment of this utility model:

[0053] A power supply tray is located at the bottom of the vehicle body.

[0054] A power cover is installed at the top opening of the power tray. One end of the cover is rotatably connected to one side of the seat lifting device with multiple support rods via a hinge, and the other end is detachably connected to the top of the power tray.

[0055] The bottom of the seat lifting device with multiple support rods is provided with a through-hole for wiring, which is used for routing cables. Attached Figure Description

[0056] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0057] Figure 1 This is a three-dimensional schematic diagram of the seat lifting device with multiple support rods in this embodiment.

[0058] Figure 2 This is another schematic diagram of the overall three-dimensional structure of the seat lifting device with multiple support rods in this embodiment.

[0059] Figure 3 This is an exploded view of the structure of the seat lifting device with multiple support rods in this embodiment.

[0060] Figure 4 This is a schematic diagram of the structure of the main support rod and two auxiliary support rods in this embodiment.

[0061] Figure 5 This is a schematic diagram showing the unfolded structure of the snap-fit ​​component in this embodiment.

[0062] Figure 6 This is a structural schematic diagram of a seat lifting device with multiple support rods installed on the vehicle body in this embodiment.

[0063] Figure 7 This is a schematic diagram of the overall structure of the electric vehicle in this embodiment.

[0064] Figure label:

[0065] 1-Telescopic support, 2-Main support rod, 3-Auxiliary support rod, 4-Saddle assembly, 5-Self-locking adjustment mechanism, 11-First sliding cavity, 12-Second sliding cavity, 13-Mounting window, 14-Cable routing hole, 21-First slot, 22-Second slot, 23-Locking protrusion, 42-Transfer connecting plate, 43-Support plate, 44-Locking component, 51-Limiting end, 52-Snap fastener, 53-Limiting cover, 111-Limiting plate, 210-Body body, 220-Rear wheel bracket, 2 30-Rear wheel shock absorber, 240-Power supply tray, 250-Power supply cover, 260-Hinge, 421-Guide rail, 4211-Limiting insertion hole, 431-Guide groove, 432-Threaded hole, 521-Snap-on end, 522-First movable block, 523-First elastic element, 524-Second movable block, 525-Second elastic element, 526-Drive rod, 5211-Modible hole, 5212-Housing body, 5213-Housing cover, 5221-Stroke groove, 5241-Protrusion. Detailed Implementation

[0066] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0067] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0068] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0069] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0070] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0071] Example

[0072] This embodiment aims to address the problems in existing electric vehicle seats that use a single support rod for lifting. This single support rod employs a single longitudinal force path, concentrating the load in the middle of the rod and leading to excessive bending moments, especially when the seat height is high. Furthermore, the rear seat rod relies on a single point of fixation, which easily causes stress concentration, rod bending, or fatigue loosening at the connection point, potentially leading to accidental unlocking and posing a safety hazard. Therefore, referring to… Figure 1-7 As shown, this application embodiment provides a seat lifting device 100 with multiple support rods and an electric vehicle including the device. The seat uses a main support rod 2 combined with at least one auxiliary support rod 3. The main support rod 2 can bear the main load, and the at least one auxiliary support rod 3 can disperse dynamic stress and distribute radial stress, avoiding the single longitudinal force path of the traditional single support rod, where the load is concentrated in the middle of the rod, resulting in excessive bending moment and increased fatigue at the ends, thus extending its overall service life. At the same time, the self-locking adjustment mechanism 5 can unlock one or more rods of the main support rod 2 or at least one auxiliary support rod 3 with a single press.

[0073] Reference Figure 1-3 As shown, a multi-support rod seat lifting device 100 includes: a telescopic support 1, a main support rod 2, at least one auxiliary support rod 3, a seat saddle assembly 4, and a self-locking adjustment mechanism 5. The telescopic support 1 is used to connect to the body body 210 of an electric vehicle. The main support rod 2 can be vertically inserted into the telescopic support 1 and can slide axially along the telescopic support 1. At least one auxiliary support rod 3 can be vertically inserted into the telescopic support 1 and is arranged parallel to the side of the main support rod 2. The seat saddle assembly 4 is connected to the top of at least one auxiliary support rod 3 and the main support rod 2. The self-locking adjustment mechanism 5 is disposed at the top of the telescopic support 1. The limiting end 51 of the self-locking adjustment mechanism 5 can be inserted radially along the main support rod 2 and / or at least one auxiliary support rod 3, and can limit the sliding of the main support rod 2 and / or at least one auxiliary support rod 3 on the telescopic support 1. In some embodiments, the self-locking adjustment mechanism 5 has only one limiting end 51, which is only used to limit the sliding of the main support rod 2 on the telescopic support 1. In some embodiments, the self-locking adjustment mechanism 5 has only one limiting end 51, which is used only for at least one auxiliary support rod 3 to slide on the telescopic support 1. In some embodiments, the self-locking adjustment mechanism 5 has only one limiting end 51 but has two limiting ends 51, which can simultaneously limit the sliding of the main support rod 2 and at least one auxiliary support rod 3 on the telescopic support 1.

[0074] Reference Figure 3As shown, in some embodiments, the outer wall of the main support rod 2 is provided with a plurality of first slots 21 evenly distributed along the axial direction; at least one auxiliary support rod 3 has the same structural dimensions as the main support rod 2; the main support rod 2 and one auxiliary support rod 3 are evenly distributed on the telescopic support 1. In some embodiments, one main support rod 2 and one auxiliary support rod 3 are each provided, symmetrically arranged on the telescopic support 1, and a self-locking adjustment mechanism 5 is provided between the main support rod 2 and the auxiliary support rod 3. The self-locking adjustment mechanism 5 has two limiting ends 51, which can be respectively engaged into the first slots 21 of the main support rod 2 and the auxiliary support rod 3 to achieve synchronous locking. In some embodiments, one main support rod and one auxiliary support rod 3 are each provided, symmetrically arranged on the telescopic support 1.

[0075] Reference Figure 4 As shown, in some embodiments, the diameter of at least one auxiliary support rod 3 is less than or equal to that of the main support rod 2; the outer wall of the main support rod 2 is provided with a plurality of second slots 22 evenly distributed along the axial direction; the main support rod 2 is provided in the middle of the telescopic support 1; at least one auxiliary support rod 3 is provided on each side of the main support rod 2. In some embodiments, two auxiliary support rods 3 are provided, respectively located on the left and right sides of the main support rod 2, one of which is provided with a plurality of second slots 22 distributed in the same manner as the outer wall of the main support rod 2. A self-locking adjustment mechanism 5 is provided between the auxiliary support rod 3 and the main support rod 2. The self-locking adjustment mechanism 5 has two limiting ends 51, which can be respectively engaged into the second slots 22 of the main support rod 2 and the auxiliary support rod 3 to achieve synchronous locking. The main support rod 2 can bear 70% of the vertical load, and the auxiliary support rod 3 shares 20% of the vertical load + lateral moment.

[0076] Reference Figure 3 As shown, in some embodiments, the telescopic support 1 includes a first sliding cavity 11 and at least one second sliding cavity 12.

[0077] The first sliding cavity 11 can be inserted into the main support rod 2 and slidably connected to the main support rod 2;

[0078] At least one second sliding cavity 12 can be inserted into and slidably connected to at least one auxiliary support rod 3. Exemplarily, the telescopic support 1 may be made of stainless steel. It has an independent first sliding cavity 11 and a second sliding cavity 12 internally. In some embodiments, linear motion bearings are installed at the ports of both the first sliding cavity 11 and at least one second sliding cavity 12. In some embodiments, a locking protrusion 23 is provided at the bottom of the main support rod 2, a slot for the locking protrusion 23 to engage is provided on one side of the first sliding cavity 11, and a limiting plate 111 is provided on one side of the first sliding cavity 11 to limit the pull-out of the main support rod 2. The bottom of the limiting plate 111 corresponds to the position of the locking protrusion 23, and the limiting plate 111 is clamped and fixed to one side of the first sliding cavity 11 by a limiting cover 53.

[0079] Reference Figure 3 and 5 As shown, in some embodiments, the self-locking adjustment mechanism 5 includes: a snap-fit ​​component 52 and a limiting cover 53.

[0080] The latching component 52 includes at least one latching end 521 and an unlocking end 522. When the unlocking end 522 is pressed, at least one latching end 521 retracts. The top of the telescopic support 1 is provided with an installation window 13 for installing the latching component 52. The limiting cover 53 is detachably connected to the top of the telescopic support 1, and the latching component 52 can be clamped and fixed in the installation window 13 by the limiting cover 53. At least one latching end 521 can be latched into the first slot 21 of the main support rod 2 and / or at least one auxiliary support rod 3. It should be noted that at least one latching end 521 is the aforementioned limiting end 51, and the latching end 521 is a protruding cylinder or frustum with rounded corners at the end.

[0081] Reference Figure 3 As shown, in some embodiments, the saddle assembly 4 includes: a seat cushion 41, a transfer connecting plate 42, a support plate 43, and a locking member 44. The seat cushion 41 is used for riding. The top of the transfer connecting plate 42 is detachably connected to the seat cushion 41, and the bottom is provided with a horizontally arranged guide rail 421; an exemplary guide rail 421 may be a T-shaped guide rail 421.

[0082] The support plate 43 is used to connect to the top of the main support rod 2 and at least one auxiliary support rod 3, and its top is provided with a guide groove 431 adapted to the guide rail 421; the guide rail 421 is slidably connected to the guide groove 431.

[0083] The locking member 44 is movably connected to the support plate 43, and one end of it can move towards the central connecting plate 42 and abut against it to limit the movement of the guide rail 421 in the guide groove 431.

[0084] Reference Figure 2-3 As shown, the guide rail 421 is further provided with multiple limiting holes 4211, and the support plate 43 is provided with a through threaded hole 432; the outer periphery of the locking member 44 is threadedly connected to the threaded hole 432; one end of the locking member 44 can be screwed into the limiting hole 4211 to limit the displacement of the guide rail 421 in the guide groove 431.

[0085] Reference Figure 2 and 5As shown, in some embodiments, the snap-fit ​​component 52 includes: a housing 521, at least one first movable block 522, a first elastic element 523, a second movable block 524, a second elastic element 525, and a drive rod 526. The housing 521 is provided with at least one movable hole 5211, which matches at least one snap-fit ​​end 521, and the at least one snap-fit ​​end 521 can extend out from the at least one movable hole 5211. The housing 521 includes a housing body 5212 and a housing cover 5213. At least one first movable block 522, the first elastic element 523, the second movable block 524, the second elastic element 525, and the drive rod 526 are confined within the housing body 5212 by the housing cover 5213, and the housing body 5212 and the housing cover 5213 are detachably connected.

[0086] At least one first movable block 522 is disposed within the housing 521, with at least one snap-fit ​​end 521 on one side wall and an inclined travel groove 5221 on the other side wall. A first elastic member 523 is disposed within the housing 521, with its movable end abutting against at least one first movable block 522, and the first elastic member 523 is capable of keeping at least one snap-fit ​​end 521 always protruding from at least one movable hole 5211.

[0087] The second movable block 524 is disposed inside the housing 521. The second movable block 524 can move perpendicular to the extension and retraction direction of at least one snap-on end 521. One side of the second movable block 524 is provided with a protrusion 5241 for inserting into the stroke groove 5221. The second movable block 524 can be moved under the action of external force. The protrusion 5241 can slide along the stroke groove 5221 and drive at least one snap-on end 521 to retract.

[0088] The second elastic member 525 is disposed inside the housing 521. The movable end of the second elastic member 525 abuts against the second movable block 524. The elastic force of the first elastic member 523 can keep the protrusion 5241 in the initial position of the stroke groove 5221.

[0089] The drive rod 526 is connected at one end to the second movable block 524 and at the other end extends out of the housing 521. The drive rod 526 is slidably connected to the housing 521.

[0090] Reference Figure 6-7As shown, this embodiment also provides an electric vehicle, including: the aforementioned multi-support rod seat lifting device 100, the vehicle body 210, the rear wheel bracket 220, and the rear wheel shock absorber 230. The multi-support rod seat lifting device 100 is detachably connected to the middle of the vehicle body 210; the rear wheel bracket 220 is rotatably connected to the bottom of the multi-support rod seat lifting device 100 via a pivot; one end of the rear wheel shock absorber 230 is rotatably connected to the middle of the multi-support rod seat lifting device 100, and the other end is rotatably connected to the middle of the rear wheel bracket 220.

[0091] Reference Figure 7 As shown, in some embodiments, the electric vehicle also includes a power tray 240 and a power cover 250.

[0092] The power tray 240 is located at the bottom of the vehicle body 210; the power cover 250 is installed at the top opening of the power tray 240, one end of which is rotatably connected to one side of the multi-support rod seat lifting device 100 via a hinge 260, and the other end is detachably connected to the top of the power tray 240, so as to facilitate the opening of the power cover 250 for easy battery replacement; the bottom of the multi-support rod seat lifting device 100 is provided with a through wiring hole 14 for wiring to pass through.

[0093] The electronic devices provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A multi-strut seat lifting device, characterized by, The utility model relates to a multi-support rod seat lifting device, comprising: a telescopic support for connecting a body of an electric vehicle; a main support rod vertically inserted into the telescopic support and capable of axially sliding along the telescopic support; at least one auxiliary support rod vertically inserted into the telescopic support and arranged in parallel to the main support rod; a seat saddle assembly connected to the at least one auxiliary support rod and the top of the main support rod; a self-locking adjusting mechanism arranged at the top of the telescopic support, the limiting end of the self-locking adjusting mechanism capable of being radially inserted into the main support rod and / or the at least one auxiliary support rod to limit the sliding of the main support rod and / or the at least one auxiliary support rod on the telescopic support.

2. The multi-support rod seat lifting device according to claim 1, wherein: the outer wall of the main support rod is provided with a plurality of first clamping grooves uniformly distributed along the axial direction; the at least one auxiliary support rod has the same structure as the main support rod; the main support rod and one of the auxiliary support rods are arranged on the telescopic support.

3. The multi-support rod seat lifting device according to claim 1, wherein: the at least one auxiliary support rod is smaller than or equal to the main support rod; the outer wall of the main support rod is provided with a plurality of second clamping grooves uniformly distributed along the axial direction; the main support rod is arranged at the middle of the telescopic support; the at least one auxiliary support rod is arranged on both sides of the main support rod.

4. The multi-support rod seat lifting device according to claim 1, wherein: the telescopic support comprises: a first sliding cavity capable of being inserted into the main support rod and being in sliding connection with the main support rod; at least one second sliding cavity capable of being inserted into the at least one auxiliary support rod and being in sliding connection with the at least one auxiliary support rod.

5. The multi-support rod seat lifting device according to claim 2, wherein: the self-locking adjusting mechanism comprises: a clamping component, the clamping component comprising at least one clamping end and a releasing end, the at least one clamping end being retracted when the releasing end is pressed; the top of the telescopic support is provided with a mounting window for mounting the clamping component; a limiting cover, the limiting cover being detachably connected to the top of the telescopic support, the clamping component being clamped and fixed in the mounting window by the limiting cover; the at least one clamping end being capable of being clamped into the first clamping groove of the main support rod and / or the at least one auxiliary support rod.

6. The multi-strut seat lift of claim 2, wherein: the seat saddle assembly comprises: a seat cushion for sitting; a transfer connecting plate, the top of the transfer connecting plate being detachably connected to the seat cushion, the bottom of the transfer connecting plate being provided with a horizontally arranged guide rail; a support plate, the top of the support plate being provided with a guide groove matched with the guide rail, the support plate being used for connecting the top of the main support rod and the at least one auxiliary support rod; a locking member, one end of the locking member being capable of being displaced to the transfer connecting plate and abutting against the transfer connecting plate to limit the displacement of the guide rail in the guide groove.

7. The multi-support rod seat lifting device according to claim 6, wherein: the guide rail is provided with a plurality of limiting insertion holes, and the support plate is provided with a threaded hole penetrating through. The outer periphery of the locking piece is threadedly connected with the threaded hole; and one end of the locking piece can be screwed into the limiting insertion hole to limit displacement of the guide rail in the guide groove.

8. The multi-strut seat lift of claim 5, wherein: The buckle component comprises: A shell is provided with at least one movable hole position matched with the at least one buckle end, the at least one buckle end being capable of extending out of the at least one movable hole position; At least one first movable block is arranged in the shell, one side wall of the at least one first movable block being provided with the at least one buckle end, and the other side wall being provided with an inclined stroke groove; A first elastic member is arranged in the shell, an active end of the first elastic member abutting against the at least one first movable block, the first elastic member being capable of always pushing the at least one buckle end out of the at least one movable hole position; A second movable block is arranged in the shell, the second movable block being capable of moving perpendicularly to the extension direction of the at least one buckle end, one side of the second movable block being provided with a protruding part for insertion into the stroke groove, the second movable block being capable of being moved under the action of an external force, the protruding part being capable of sliding along the stroke groove and driving the at least one buckle end to retract; A second elastic member is arranged in the shell, an active end of the second elastic member abutting against the second movable block, the elastic force of the first elastic member being capable of maintaining the protruding part at an initial position of the stroke groove; A drive rod is connected with the second movable block at one end and extends out of the shell at the other end, the drive rod being in sliding connection with the shell.

9. An electric vehicle, characterized by It comprises: The multi-support-rod seat lifting device of any one of claims 1-8; A vehicle body main body, the multi-support-rod seat lifting device being detachably connected with the middle part of the vehicle body main body; A rear wheel support rotatably connected with the bottom of the multi-support-rod seat lifting device through a rotating shaft; A rear wheel shock absorber rotatably connected with the middle part of the multi-support-rod seat lifting device at one end and with the middle part of the rear wheel support at the other end.

10. The electric vehicle of claim 9, wherein, It further comprises: A power supply tray arranged at the bottom of the vehicle body main body; A power supply cover plate mounted on the top opening of the power supply tray, one end of the power supply cover plate being rotatably connected with one side of the multi-support-rod seat lifting device through a hinge, and the other end being detachably connected with the top of the power supply tray; The bottom of the multi-support-rod seat lifting device is provided with a wire passing hole, the wire passing hole being used for wire arrangement.

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