Foldable tree protection support

Abstract

The application belongs to the field of forest support, and particularly relates to a foldable forest protection support device, which comprises two support bases, an arc-shaped base, a moving base, a telescopic support assembly, a resisting seat and a surrounding limiting assembly. The two support bases are respectively detachably connected to the two ends of the arc-shaped base. The bottom of the support base is provided with a rotatable and expandable plug. The arc-shaped base is provided with a guide groove. The moving base is slidably arranged in the guide groove. One end of the telescopic support assembly is rotatably connected to the moving base, and the other end is connected to the resisting seat. The surrounding limiting assembly comprises a flexible surrounding member and a locking member. The flexible surrounding member is arranged on the resisting seat. The locking member is connected to the flexible surrounding member and detachably connected to the resisting seat. Thus, the problem that the existing foldable forest protection support device is inconvenient to disassemble and assemble, the bottom is not reliably fixed, and is easily affected by wind force or tree trunk shaking to slide is solved.

Description

Technical Field

[0001] This invention belongs to the field of forest support, and in particular relates to a foldable forest protection support device. Background Technology

[0002] In landscaping, tree transplantation, and sapling maintenance, protective support devices are typically installed on the outside of the tree trunk to prevent trees from tilting due to wind, rain, or soil loosening. Existing tree support devices generally use support rods, fixing seats, straps, or clamps to support the tree trunk. Some devices also have foldable support rods for storage and transportation when not in use.

[0003] However, existing foldable tree protection support devices are mostly fixed in position and have a single support angle when in use. It is difficult to adjust them flexibly according to the tree diameter, the direction of the trunk tilt and the ground conditions. In addition, the devices are not convenient to disassemble and store, which can easily lead to insufficient fit between the support point and the tree trunk, insufficient support stability and affect later maintenance and reuse. Summary of the Invention

[0004] The purpose of this invention is to address the problems in the prior art mentioned in the background section, namely that existing foldable forest protection support devices are mostly fixed in position and have a single support angle, making it difficult to flexibly adjust according to the tree diameter, trunk tilt direction and on-site ground conditions. Furthermore, the devices are not convenient to assemble, disassemble and store, which can easily lead to insufficient fit between the support point and the tree trunk, insufficient support stability, and affect subsequent maintenance and reuse.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a foldable forest protection support device, comprising two support bases, an arc-shaped base, a movable base, a telescopic support assembly, an abutment seat, and a surrounding limiting assembly. The two support bases are detachably connected to both ends of the arc-shaped base. The bottom of the support base is provided with a rotatable and unfoldable plug. A guide groove is provided on the arc-shaped base. The movable base is slidably disposed in the guide groove. One end of the telescopic support assembly is rotatably connected to the movable base, and the other end is connected to the abutment seat. The surrounding limiting assembly includes a flexible surrounding member and a locking member. The flexible surrounding member is disposed on the abutment seat, and the locking member is connected to the flexible surrounding member and detachably connected to the abutment seat.

[0006] Furthermore, the support base has a slot, and the end of the arc-shaped base is provided with a snap-fit ​​connector, which is inserted into the slot.

[0007] Furthermore, the bottom of the support base is provided with an assembly groove, and a rotating head is rotatably connected in the assembly groove. The plug is fixedly connected to the outer wall of the rotating head.

[0008] Furthermore, the movable base is provided with a support head, and the telescopic support assembly is rotatably connected to the support head through a first hinge lug.

[0009] Furthermore, the telescopic support assembly includes a support sleeve and a support arm. The support arm is slidably inserted into the support sleeve. A limit bolt is installed on the support sleeve. One end of the limit bolt abuts against the support arm. One end of the support sleeve is rotatably connected to the inner wall of the first hinge lug.

[0010] Furthermore, a second hinge lug is provided at the end of the support arm away from the support sleeve, and the abutment seat is rotatably connected to the support arm through the second hinge lug.

[0011] Furthermore, the surrounding limiting assembly includes a mounting housing, a take-up roller, a strap, a limiting head, and a limiting seat. The mounting housing is mounted on the abutment seat, the take-up roller is rotatably disposed within the mounting housing, one end of the strap is wound around the take-up roller, the limiting head is disposed at the other end of the strap, and the limiting seat is disposed on the abutment seat and engages with the limiting head.

[0012] Furthermore, it also includes a connecting arm, the two ends of which are detachably mounted on the inner walls of the two support bases by bolts. The connecting arm is provided with a support seat, which is used to support the telescopic support assembly after folding.

[0013] Furthermore, there are two movable bases, which are slidably disposed in the guide groove and are respectively connected to the telescopic support assembly and the abutment seat. The two abutment seats are staggered along the height direction.

[0014] Compared with existing technologies, the advantages of this foldable forest protection support device are:

[0015] 1. This invention achieves the detachable assembly of the arc-shaped base and the support base, as well as the insertion and fixing of the support base relative to the ground, through the cooperation of the support base, arc-shaped base, slot, snap connector, assembly groove, rotating head and plug. This solves the problems of inconvenient overall disassembly and assembly, unreliable bottom fixing and easy slippage caused by wind or tree trunk swaying of existing foldable forest protection support devices.

[0016] 2. This invention achieves the adjustment of support position, support height and contact angle through the cooperation of arc-shaped base, guide groove, movable base, support head, first hinge ear, support sleeve, support arm, limit bolt, second hinge ear and contact seat. This allows the contact seat to be adapted according to the trunk diameter, trunk tilt direction and on-site installation position, thereby solving the problems of fixed support position, single support angle, insufficient fit with the trunk and uneven support force of existing foldable forest protection support devices.

[0017] 3. This invention achieves the functions of surrounding and limiting the tree trunk, winding the binding strap, and supporting and storing the telescopic support component after folding by cooperating with the contact seat, the surrounding limiting component, the mounting housing, the winding roller, the binding strap, the limiting card head, the limiting card seat, the connecting arm, and the support seat. This solves the problems of inconvenient binding and disassembly of existing tree support devices, easy swinging of the support rod after storage, and large space occupation during transportation. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of a foldable forest protection support device provided by the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of a connecting arm for a foldable forest protection support device provided by the present invention;

[0020] Figure 3 This is a schematic diagram of the bottom structure of the support base of a foldable forest protection support device provided by the present invention;

[0021] Figure 4 This is a schematic diagram of the arc-shaped base of a foldable forest protection support device provided by the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of the contact seat of a foldable forest protection support device provided by the present invention;

[0023] Figure 6 This invention provides a foldable forest protection support device. Figure 1 A magnified structural diagram of part A in the middle.

[0024] As shown in the figure:

[0025] 1. Support base; 11. Assembly slot; 111. Rotating head; 112. Plug; 12. Slot; 2. Arc-shaped base; 21. Guide groove; 22. Snap connector; 3. Movable base; 31. Support head;

[0026] 4. Telescopic support assembly; 41. First hinge lug; 42. Support sleeve; 421. Limit bolt; 43. Support arm; 44. Second hinge lug; 5. Abutment seat;

[0027] 6. Surrounding limiting assembly; 61. Mounting housing; 62. Take-up roller; 63. Strap; 64. Limiting clamp; 65. Limiting clamp seat; 7. Connecting arm; 71. Support seat. Detailed Implementation

[0028] The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0029] like Figures 1-5 As shown, this application proposes a foldable forest protection support device, which may include two support bases 1, an arc-shaped base 2, a movable base 3, a telescopic support assembly 4, an abutment seat 5, and a surrounding limiting assembly 6. The two support bases 1 are detachably connected to both ends of the arc-shaped base 2. The bottom of the support base 1 is provided with a rotatable and unfoldable plug 112. The arc-shaped base 2 is provided with a guide groove 21. The movable base 3 is slidably disposed in the guide groove 21. One end of the telescopic support assembly 4 is rotatably connected to the movable base 3, and the other end is connected to the abutment seat 5. The surrounding limiting assembly 6 includes a flexible surrounding member and a locking member. The flexible surrounding member is disposed on the abutment seat 5, and the locking member is connected to the flexible surrounding member and detachably connected to the abutment seat 5.

[0030] It should be noted that the two support bases 1 described in this embodiment are located at the two ends of the arc-shaped base 2, so that the arc-shaped base 2 can be arranged around one side of the outer perimeter of the tree. The plug 112 at the bottom of the support base 1 can be rotated and unfolded to be inserted into the ground. The guide groove 21 on the arc-shaped base 2 is used to limit the sliding path of the movable base 3. The movable base 3 drives the telescopic support assembly 4 to adjust its position along the arc-shaped base 2. The telescopic support assembly 4 is used to adjust the height of the abutment 5 relative to the tree trunk and the support distance. The flexible surrounding member and the locking member in the surrounding limiting assembly 6 are used to form a limiting relationship around the outer perimeter of the tree trunk.

[0031] Specifically, in use, first connect the two support bases 1 to the two ends of the arc-shaped base 2 respectively, then rotate and unfold the plug 112 and insert it into the ground so that the arc-shaped base 2 is located around the tree. Then move the moving base 3 along the guide groove 21 so that the telescopic support component 4 is adjusted to a position that is compatible with the tree's tilt direction or support position. Then unfold the telescopic support component 4 and make the abutment seat 5 abut against the outer periphery of the tree trunk. Finally, the flexible surrounding component and locking component form a surrounding limit on the tree trunk. In this way, the device can be adjusted according to the tree diameter, tilt direction and on-site support position, thereby solving the problems of fixed support position, single support angle and insufficient support stability of existing foldable tree protection support devices.

[0032] Furthermore, such as Figures 1-6 As shown, a slot 12 is provided on the support base 1, and a snap connector 22 is provided at the end of the arc-shaped base 2. The snap connector 22 is inserted into the slot 12.

[0033] It should be noted that the slot 12 described in this embodiment is set on the support base 1, and the snap connector 22 is set at the end of the arc-shaped base 2. After the snap connector 22 is inserted into the slot 12, the support base 1 and the arc-shaped base 2 form a detachable connection relationship. The two support bases 1 correspond to the two ends of the arc-shaped base 2 respectively, so that the arc-shaped base 2 can be positioned by the two support bases 1 when in use.

[0034] Specifically, during assembly, the snap connectors 22 at both ends of the arc-shaped base 2 are inserted into the slots 12 on the two support bases 1 respectively, so that the arc-shaped base 2 and the support base 1 can be quickly connected. During disassembly, the snap connectors 22 can be removed from the slots 12 to separate the arc-shaped base 2 and the support base 1. This facilitates the disassembly, transportation and repeated installation of the device, thereby solving the problem of the fixed overall structure of the existing forest support device and the inconvenience of on-site disassembly, assembly and transportation.

[0035] Furthermore, such as Figures 1-6 As shown, the bottom of the support base 1 is provided with an assembly groove 11, and a rotating head 111 is rotatably connected in the assembly groove 11. The plug 112 is fixedly connected to the outer wall of the rotating head 111.

[0036] It should be noted that the assembly slot 11 described in this embodiment is located at the bottom of the support base 1, the rotating head 111 is rotatably connected in the assembly slot 11, and the plug 112 is fixedly connected to the outer wall of the rotating head 111, so that the plug 112 can rotate relative to the support base 1 between the retracted state and the unfolded state. When the plug 112 is retracted, it is located in the bottom area of ​​the support base 1, and when the plug 112 is unfolded, it can be inserted towards the ground.

[0037] Specifically, before using the device, the plug 112 is rotated out of the assembly slot 11 along with the rotating head 111 and inserted into the soil, so that the support base 1 remains fixed relative to the ground. When storing or transferring the device, the plug 112 is pulled out of the ground and rotated back into the assembly slot 11 to reduce the impact of the exposed tip on the handling. This ensures that the support base 1 is grounded and fixed, while improving the safety and convenience of storage, and thus solves the problem that the bottom of the existing folding support device is not reliably fixed and is easy to slip due to wind or tree trunk swaying.

[0038] Furthermore, such as Figures 1-6 As shown, the movable base 3 is provided with a support head 31, and the telescopic support assembly 4 is rotatably connected to the support head 31 through the first hinge ear 41.

[0039] It should be noted that the support head 31 described in this embodiment is set on the movable base 3, and the first hinge ear 41 is located at one end of the telescopic support assembly 4 near the movable base 3. The first hinge ear 41 is rotatably connected to the support head 31, so that the telescopic support assembly 4 can rotate relative to the movable base 3. When the movable base 3 slides along the guide groove 21, the support position of the telescopic support assembly 4 on the arc-shaped base 2 can be changed synchronously.

[0040] Specifically, when the support direction needs to be adjusted, the movable base 3 is first moved to the corresponding position along the guide groove 21, and then the unfolding angle of the telescopic support assembly 4 is adjusted through the first hinge ear 41 so that the contact seat 5 can more accurately abut against the outer periphery of the tree trunk. This allows both the support position and the support angle to be adjusted, thereby solving the problem that the support point is fixed after the existing support device is unfolded, making it difficult to adapt to changes in the tilt direction of the tree trunk and the on-site installation position.

[0041] Furthermore, such as Figures 1-6 As shown, the telescopic support assembly 4 includes a support sleeve 42 and a support arm 43. The support arm 43 is slidably inserted into the support sleeve 42. A limit bolt 421 is installed on the support sleeve 42. One end of the limit bolt 421 abuts against the support arm 43. One end of the support sleeve 42 is rotatably connected to the inner wall of the first hinge ear 41.

[0042] It should be noted that the support sleeve 42 described in this embodiment serves as the external support of the telescopic support assembly 4. The support arm 43 is slidably inserted into the support sleeve 42. The support arm 43 can extend or retract relative to the support sleeve 42. The limiting bolt 421 is installed on the support sleeve 42 and abuts against the support arm 43 to limit its relative sliding after the support arm 43 is adjusted to the corresponding position. One end of the support sleeve 42 is rotatably connected in the first hinge ear 41, so that the telescopic support assembly 4 can have both telescopic and folding adjustment functions.

[0043] Specifically, in use, the support arm 43 is pulled to extend or retract relative to the support sleeve 42 according to the support height and distance of the tree trunk. When the abutment seat 5 reaches the appropriate support height, the support arm 43 is tightened by the limiting bolt 421 to keep the support arm 43 in the adjusted position. When not in use, the limiting bolt 421 is loosened and the support arm 43 is retracted into the support sleeve 42. Then, the support sleeve 42 is rotated and folded around the first hinge ear 41. This improves the adaptability of the device to different tree diameters and different support heights, thereby solving the problem that the existing folding support device has a limited height adjustment range and occupies a large space after storage.

[0044] Furthermore, such as Figures 1-6 As shown, the end of the support arm 43 away from the support sleeve 42 is provided with a second hinge ear 44, and the abutment seat 5 is rotatably connected to the support arm 43 through the second hinge ear 44.

[0045] It should be noted that the second hinge ear 44 described in this embodiment is located at the end of the support arm 43 away from the support sleeve 42. The abutment seat 5 is rotatably connected to the support arm 43 through the second hinge ear 44, so that the abutment seat 5 can rotate relative to the support arm 43. When the abutment seat 5 contacts the outer periphery of the tree trunk, it can be angled according to the direction of the tree trunk surface.

[0046] Specifically, when the telescopic support assembly 4 is extended and approaches the tree trunk, the abutment seat 5 rotates relative to the support arm 43 through the second hinge ear 44, so that the abutment seat 5 can fit more closely to the outer periphery of the tree trunk, reducing the force concentration caused by local hard contact, thereby improving the adaptability of the support contact surface, and thus solving the problem that the existing support rod end angle is fixed, which easily leads to insufficient fit and uneven support force when it is against the tree trunk.

[0047] Furthermore, such as Figures 1-6 As shown, the surrounding limiting assembly 6 includes a mounting housing 61, a take-up roller 62, a strap 63, a limiting head 64, and a limiting seat 65. The mounting housing 61 is mounted on the abutment seat 5. The take-up roller 62 is rotatably disposed inside the mounting housing 61. One end of the strap 63 is wrapped around the take-up roller 62. The limiting head 64 is disposed at the other end of the strap 63. The limiting seat 65 is disposed on the abutment seat 5 and engages with the limiting head 64.

[0048] It should be noted that, in this embodiment, the mounting housing 61 is mounted on the contact seat 5, the take-up roller 62 is located inside the mounting housing 61, one end of the binding strap 63 is wrapped around the take-up roller 62, the binding strap 63 can be pulled out from inside the mounting housing 61, the limiting head 64 is mounted on the pulled-out end of the binding strap 63, and the limiting seat 65 is mounted on the contact seat 5. After the limiting head 64 and the limiting seat 65 cooperate, the binding strap 63 can be limited around the outer periphery of the tree trunk.

[0049] Specifically, after the abutment seat 5 is adjusted to the support position on the outer periphery of the tree trunk, the binding strap 63 is pulled out from the mounting housing 61 and wrapped around the tree trunk. Then, the limiting head 64 is snapped onto the limiting seat 65, so that the binding strap 63 and the abutment seat 5 together restrict the swaying of the tree trunk. When disassembling, the snapping of the limiting head 64 and the limiting seat 65 is released, and the binding strap 63 can be recycled back into the mounting housing 61 with the take-up roller 62. This makes the surrounding limiting and storage operations more convenient, thereby solving the problems of exposed and messy binding straps, low disassembly and assembly efficiency, and inconvenience of reuse in the existing binding support structure.

[0050] Furthermore, such as Figures 1-6 As shown, it also includes a connecting arm 7. The two ends of the connecting arm 7 are detachably installed on the inner walls of the two support bases 1 by bolts. The connecting arm 7 is provided with a support seat 71, which is used to support the telescopic support assembly 4 after folding.

[0051] It should be noted that the connecting arm 7 described in this embodiment is disposed between two support bases 1. The two ends of the connecting arm 7 are detachably installed on the inner wall of the two support bases 1 by bolts, so that the two support bases 1 form a lateral connection relationship. The support base 71 is disposed on the connecting arm 7. The position of the support base 71 corresponds to the folded telescopic support assembly 4 and is used to support the retracted support sleeve 42 and support arm 43.

[0052] Specifically, when the device is not in use, the support arm 43 is retracted into the support sleeve 42, and the telescopic support assembly 4 is folded around the first hinge ear 41 toward the connecting arm 7. The folded telescopic support assembly 4 is supported by the support base 71, making it less likely to shake during transportation. When disassembling, the bolt connection between the connecting arm 7 and the support base 1 can be released so that the device can be disassembled and stored. This improves the regularity of the folded structure and the convenience of disassembly and assembly, thereby solving the problem that the existing foldable support device lacks support for the support rod after being folded, making it easy to swing and occupy space.

[0053] Furthermore, such as Figures 1-6 As shown, there are two movable bases 3. The two movable bases 3 are slidably disposed in the guide groove 21 and are respectively connected to the telescopic support assembly 4 and the abutment seat 5. The two abutment seats 5 are staggered along the height direction.

[0054] It should be noted that the two movable bases 3 described in this embodiment are slidably disposed in the guide groove 21. Each movable base 3 is connected to a set of telescopic support components 4 and abutment seats 5 respectively. The two abutment seats 5 are staggered along the height direction so that the two abutment seats 5 can abut against different height positions of the tree trunk respectively, avoiding interference between the two sets of support structures at the same height.

[0055] Specifically, when it is necessary to support the trees on both sides or in different directions, the positions of the two movable bases 3 can be adjusted along the guide groove 21, and the heights of the two sets of telescopic support components 4 can be adjusted respectively, so that the two contact seats 5 are located at different heights on the trunk, and then the corresponding surrounding limiting components 6 are used for limiting, thereby forming layered support and multi-directional support, thus solving the problem that a single support point is difficult to cope with the tilt of the trunk, the action of wind, or the force in different directions.

[0056] In summary, the working principle of this foldable tree protection support device is as follows: First, connect the two support bases 1 to both ends of the arc-shaped base 2. Then, rotate and unfold the plug 112 at the bottom of the support base 1 and insert it into the ground, allowing the support base 1 and arc-shaped base 2 to be stably positioned around the tree. Next, according to the tree trunk's inclination and support position, slide the movable base 3 along the guide groove 21 on the arc-shaped base 2 to the corresponding position. Then, rotate and unfold the telescopic support assembly 4 via the first hinge ear 41, and adjust the extension length of the support arm 43 relative to the support sleeve 42. Finally, fix it with the limiting bolt 421, allowing the contact seat 5 to move to the support height around the tree trunk. The contact seat 5 is rotatably connected to the support arm 43 via the second hinge ear 44, allowing for adjustment according to the direction of the tree trunk's outer perimeter. Finally, the flexible surrounding component in the surrounding limiting assembly 6 is moved around the tree trunk. The tree trunk is connected to the abutment seat 5 via a locking component, so that the abutment seat 5 and the flexible surrounding component together form a limiting support for the tree trunk. When not in use, the connection of the surrounding limiting component 6 can be released, the support arm 43 can be retracted into the support sleeve 42, and the telescopic support component 4 can be folded to the support seat 71 on the connecting arm 7. At the same time, the plug 112 can be rotated back into the assembly slot 11 and the support base 1 and the arc base 2 can be separated. Thus, through the cooperation of the support base 1, arc base 2, movable base 3, telescopic support component 4, abutment seat 5, surrounding limiting component 6 and connecting arm 7, the functions of grounding fixation, support position adjustment, support height adjustment, tree trunk surrounding limitation and folding storage are realized, thereby solving the problems of fixed support position, single support angle, insufficient fit with tree trunk, unstable bottom fixation and inconvenient disassembly and storage of existing foldable forest protection support devices.

[0057] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A foldable forest protection support device, characterized in that, The device includes two support bases (1), an arc-shaped base (2), a movable base (3), a telescopic support assembly (4), an abutment seat (5), and a surrounding limiting assembly (6). The two support bases (1) are detachably connected to the two ends of the arc-shaped base (2). The bottom of the support base (1) is provided with a rotatable and expandable plug (112). The arc-shaped base (2) is provided with a guide groove (21). The movable base (3) is slidably disposed in the guide groove (21). One end of the telescopic support assembly (4) is rotatably connected to the movable base (3), and the other end is connected to the abutment seat (5). The surrounding limiting assembly (6) includes a flexible surrounding member and a locking member. The flexible surrounding member is disposed on the abutment seat (5). The locking member is connected to the flexible surrounding member and is detachably connected to the abutment seat (5).

2. The foldable forest protection support device according to claim 1, characterized in that: The support base (1) has a slot (12) and the end of the arc-shaped base (2) is provided with a snap connector (22), which is inserted into the slot (12).

3. The foldable forest protection support device according to claim 1, characterized in that: The bottom of the support base (1) is provided with an assembly groove (11), and a rotating head (111) is rotatably connected in the assembly groove (11). The plug (112) is fixedly connected to the outer wall of the rotating head (111).

4. The foldable forest protection support device according to claim 1, characterized in that: The movable base (3) is provided with a support head (31), and the telescopic support assembly (4) is rotatably connected to the support head (31) through a first hinge ear (41).

5. A foldable forest protection support device according to claim 4, characterized in that: The telescopic support assembly (4) includes a support sleeve (42) and a support arm (43). The support arm (43) is slidably inserted into the support sleeve (42). A limit bolt (421) is installed on the support sleeve (42). One end of the limit bolt (421) abuts against the support arm (43). One end of the support sleeve (42) is rotatably connected to the inner wall of the first hinge lug (41).

6. A foldable forest protection support device according to claim 5, characterized in that: The support arm (43) is provided with a second hinge ear (44) at one end away from the support sleeve (42), and the abutment (5) is rotatably connected to the support arm (43) through the second hinge ear (44).

7. A foldable forest protection support device according to claim 1, characterized in that: The surrounding limiting assembly (6) includes a mounting housing (61), a take-up roller (62), a strap (63), a limiting head (64), and a limiting seat (65). The mounting housing (61) is mounted on the abutment seat (5). The take-up roller (62) is rotatably disposed inside the mounting housing (61). One end of the strap (63) is wrapped around the take-up roller (62). The limiting head (64) is disposed at the other end of the strap (63). The limiting seat (65) is disposed on the abutment seat (5) and engages with the limiting head (64).

8. A foldable forest protection support device according to claim 1, characterized in that: It also includes a connecting arm (7), the two ends of which are detachably mounted on the inner walls of the two support bases (1) by bolts. A support seat (71) is provided on the connecting arm (7), and the support seat (71) is used to support the telescopic support assembly (4) after folding.

9. A foldable forest protection support device according to claim 1, characterized in that: Two movable bases (3) are provided. The two movable bases (3) are slidably disposed in the guide groove (21) and are respectively connected to the telescopic support assembly (4) and the abutment seat (5). The two abutment seats (5) are staggered along the height direction.

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