Support

Abstract

The utility model relates to the technical field of supports, in particular to a support. A sliding assembly of the support comprises a sliding seat, a limiting sleeve, a first elastic piece, a sleeve and a guide sleeve. The sliding seat, the limiting sleeve and the first elastic piece are arranged on the supporting rod in a sliding and sleeving mode, the sliding seat is provided with a first limiting part, the sleeve is arranged outside the first limiting part, the limiting sleeve and the first elastic piece in a sleeving mode, a second limiting part is arranged at the end, facing the fixing seat, of the sleeve, and the two ends of the first elastic piece are connected with the limiting sleeve and the second limiting part respectively. The first elastic piece and the limiting sleeve are located between the first limiting part and the second limiting part, the guide sleeve is detachably arranged between the supporting rod and the sleeve, and one end of the guide sleeve abuts against the side, back on to the first elastic piece, of the second limiting part. The limiting sleeve and the first elastic piece can be prevented from sliding out of the sleeve in the replacement process, so that a user can conveniently and rapidly disassemble and replace the guide sleeve, the replacement process is effectively simplified, and the convenience of replacement operation is improved.

Description

Technical Field

[0001] This utility model relates to the field of support technology, and in particular to a support. Background Technology

[0002] The sliding assembly is the driving component of the automatically deployable support leg. It is slidably sleeved on the support rod and rotatably connected to the leg, so that when the leg is unlocked, the locking assembly can automatically slide along the support rod, thereby driving the leg assembly to deploy. Existing sliding assemblies typically include a mounting sleeve, a sleeve, a limiting sleeve, a guide sleeve, and an elastic element that are slidably sleeved on the support rod. The two ends of the sleeve are connected to the mounting sleeve and the guide sleeve, respectively, to form a limit at both ends of the limiting sleeve, thereby housing the limiting sleeve and the elastic element within the sleeve, so that the sliding assembly can smoothly slide along the support rod under the action of the elastic element and the guide sleeve.

[0003] The drawback of the existing technology is that when the guide sleeve is worn and needs to be replaced, the limiting sleeve and elastic element are prone to slipping out of the sleeve during the replacement process, which requires the reinstallation of the limiting sleeve and elastic element, making the replacement of the guide sleeve inconvenient. Utility Model Content

[0004] The technical problem to be solved by this utility model embodiment is to provide a bracket to solve the problem of inconvenient replacement of guide sleeves in the prior art.

[0005] The bracket provided in this embodiment of the utility model includes: a support rod with a limiting block protruding from its outer wall; a fixed seat fixedly disposed at the end of the support rod away from the limiting block; and a sliding assembly including a sliding seat, a limiting sleeve, a first elastic element, a sleeve, and a guide sleeve. The sliding seat, the limiting sleeve, and the first elastic element are slidably sleeved on the support rod. The sliding seat has a first limiting portion. The sleeve is sleeved outside the first limiting portion, the limiting sleeve, and the first elastic element. A second limiting portion is provided at the end of the sleeve facing the fixed seat. The two ends of the first elastic element are respectively connected to the limiting sleeve and the second limiting portion, and the first elastic element and the limiting sleeve are located between the first limiting portion and the second limiting portion. The limiting block can pass through. The first limiting part passes through the first limiting part, and when the bracket is in the retracted state, the limiting sleeve abuts against the limiting block to cause the first elastic element to be compressed and store energy. The guide sleeve is detachably disposed between the support rod and the sleeve, and one end of the guide sleeve abuts against the side of the second limiting part opposite to the first elastic element to guide the sliding assembly to slide along the support rod; at least three support foot groups, each support foot group including a support foot and a support rib, one end of the support foot is rotatably connected to the sliding seat, and both ends of the support rib are rotatably connected to the inner wall of the support foot and the fixed seat, respectively; a locking component is disposed at the other end of the support foot to lock or disengage the other end of the support foot from the fixed seat so that the sliding assembly can be fixed or slid.

[0006] Optionally, the inner wall of the first limiting part is provided with an avoidance groove, through which the first limiting part avoids the limiting block.

[0007] Optionally, the outer wall of the support rod is further provided with a sliding groove, and the inner wall of the guide sleeve is provided with a slider, which is slidably accommodated in the sliding groove.

[0008] Optionally, the sleeve has a receiving groove defined on the side of the second limiting portion facing away from the first elastic member. The groove wall of the receiving groove is provided with a buckle hole, and the outer wall of the guide sleeve is provided with a buckle. The buckle is engaged with the buckle hole so that the guide sleeve can be detachably installed in the receiving groove.

[0009] Optionally, the guide sleeve includes a guide ring, a first guide piece, and a second guide piece, the first guide piece and the second guide piece being spaced apart on the guide ring, the buckle being disposed on the outer wall of the first guide piece, and the slider being disposed on the inner wall of the second guide piece and the guide ring.

[0010] Optionally, the guide ring has a raised edge, which is located outside the receiving groove and abuts against the sleeve.

[0011] Optionally, the guide sleeve is made of an elastic material.

[0012] Optionally, the outer wall of the first limiting part is provided with a mounting protrusion, the sleeve is provided with a mounting hole, and the mounting protrusion is detachably installed in the mounting hole.

[0013] Optionally, the first limiting part includes a first connecting piece and a second connecting piece spaced apart, the mounting protrusion is provided on the outer wall of the first connecting piece, and the clearance groove is provided on the inner wall of the second connecting piece.

[0014] Optionally, the locking assembly includes a locking member, a second elastic member, and a control button. The control button is movably mounted on the fixed base. The locking member is slidably connected to the inner wall of the other end of the support leg. The second elastic member is disposed along the length direction of the support leg on the inner wall of the other end of the support leg, and the two ends of the second elastic member are respectively connected to one end of the locking member and the inner wall of the support leg. The locking member has a locking hook portion, and the fixed base has a locking block. In the retracted state, the locking hook portion locks with the locking block. The control button is used to drive the other end of the locking member to move, so that the locking hook portion disengages from the locking block, and the sliding assembly slides.

[0015] Compared with the prior art, the beneficial effects of the bracket provided in this utility model embodiment are as follows: the sliding component of the bracket includes a sliding seat, a limiting sleeve, a first elastic element, a sleeve, and a guide sleeve. The sliding seat, limiting sleeve, and first elastic element are slidably mounted on the support rod. The sliding seat has a first limiting part, and the sleeve is fitted over the first limiting part, limiting sleeve, and first elastic element. A second limiting part is provided at the end of the sleeve facing the fixed seat. The two ends of the first elastic element are respectively connected to the limiting sleeve and the second limiting part, and the first elastic element and the limiting sleeve are located between the first limiting part and the second limiting part, so that the first elastic element and the limiting sleeve can be accommodated in the sleeve. The guide sleeve is detachably mounted between the support rod and the sleeve, and one end of the guide sleeve abuts against the side of the second limiting part opposite to the first elastic element. Therefore, when the guide sleeve is worn and needs to be replaced, the limiting sleeve and the first elastic element can be prevented from sliding out of the sleeve during the replacement process. This allows the user to easily and quickly disassemble and replace the guide sleeve without reinstalling the limiting sleeve and the first elastic element, effectively simplifying the replacement process and improving the convenience of the replacement operation. Attached Figure Description

[0016] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. In the accompanying drawings:

[0017] Figure 1 This is a three-dimensional schematic diagram of the bracket in its retracted state according to an embodiment of the present utility model;

[0018] Figure 2This is a three-dimensional schematic diagram of the support frame in its unfolded state according to an embodiment of the present utility model;

[0019] Figure 3 yes Figure 2 Enlarged view of a portion of position A in the middle;

[0020] Figure 4 This is a partial perspective view of the bracket provided in an embodiment of the present utility model;

[0021] Figure 5 This is a partial cross-sectional view of the bracket in its retracted state according to an embodiment of the present invention;

[0022] Figure 6 This is a cross-sectional view of the sliding component provided in an embodiment of the present utility model;

[0023] Figure 7 This is an exploded view of the sliding component provided in an embodiment of the present utility model;

[0024] Figure 8 This is a cross-sectional view of the guide sleeve provided in an embodiment of the present utility model;

[0025] Figure 9 This is a three-dimensional schematic diagram of the sliding seat provided in an embodiment of the present utility model;

[0026] Figure 10 This is a cross-sectional view of the sleeve provided in an embodiment of the present utility model;

[0027] Figure 11 This is a partial cross-sectional view of the bracket in its retracted state according to an embodiment of the present invention.

[0028] The labels for the attached figures are as follows:

[0029] 100. Bracket;

[0030] 1. Support rod; 11. Support rod segment; 111. Limiting block; 112. Slide groove; 2. Fixed seat; 21. Locking block; 3. Sliding assembly; 31. Sliding seat; 311. First limiting part; 3111. First connecting piece; 3111a. Mounting protrusion; 3112. Second connecting piece; 3112a. Clearance groove; 32. Sleeve; 321. Second limiting part; 322. Mounting hole; 323. Receiving groove; 3 231. Buckle hole; 33. Limiting sleeve; 34. First elastic element; 35. Guide sleeve; 351. Guide ring; 3511. Protruding edge; 352. First guide piece; 3521. Buckle; 353. Second guide piece; 354. Slider; 4. Support foot assembly; 41. Support foot; 42. Support rib; 5. Locking assembly; 51. Locking element; 511. Locking hook; 52. Second elastic element; 53. Control button. Detailed Implementation

[0031] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0032] This utility model embodiment provides a bracket 100, such as Figures 1 to 10 As shown, the bracket 100 includes a support rod 1, a fixed base 2, a sliding assembly 3, at least three support foot assemblies 4, and a locking assembly 5. The support rod 1 has a protruding limiting block 111 on its outer wall; the fixed base 2 is fixed to the end of the support rod 1 away from the limiting block 111; the sliding assembly 3 includes a sliding seat 31, a limiting sleeve 33, a first elastic element 34, a sleeve 32, and a guide sleeve 35. The sliding seat 31, the limiting sleeve 33, and the first elastic element 34 are slidably fitted onto the support rod 1. The sliding seat 31 has a first limiting portion 311. The sleeve 32 is fitted over the first limiting portion 311, the limiting sleeve 33, and the first elastic element 34. A second limiting portion 321 is provided at the end of the sleeve 32 facing the fixed base 2. The two ends of the first elastic element 34 are connected to the limiting sleeve 33 and the second limiting portion 321, respectively, and the first elastic element 34 and the limiting sleeve 33 are located between the first limiting portion 311 and the second limiting portion 321. The limiting block 111 can pass through the first limiting part 311, and when the bracket 100 is in the retracted state, the limiting sleeve 33 abuts against the limiting block 111 so that the first elastic member 34 is compressed and stores energy. The guide sleeve 35 is detachably disposed between the support rod 1 and the sleeve 32, and one end of the guide sleeve 35 abuts against the side of the second limiting part 321 opposite to the first elastic member 34 so as to guide the sliding assembly 3 to slide along the support rod 1. The support foot assembly 4 includes a support foot 41 and a support rib 42. One end of the support foot 41 is rotatably connected to the sliding seat 31, and both ends of the support rib 42 are rotatably connected to the inner wall of the support foot 41 and the fixed seat 2, respectively. The locking assembly 5 is disposed at the other end of the support foot 41 so as to lock or disengage the other end of the support foot 41 from the fixed seat 2 so that the sliding assembly 3 can be fixed or slid.

[0033] Specifically, the sliding seat 31, the limiting sleeve 33, and the first elastic member 34 are slidably sleeved on the support rod 1. The sliding seat 31 is provided with a first limiting part 311. The sleeve 32 is sleeved on the outside of the first limiting part 311, the limiting sleeve 33, and the first elastic member 34. The end of the sleeve 32 facing the fixed seat 2 is provided with a second limiting part 321. The two ends of the first elastic member 34 are respectively connected to the limiting sleeve 33 and the second limiting part 321, and the first elastic member 34 and the limiting sleeve 33 are located between the first limiting part 311 and the second limiting part 321, so that the first elastic member 34 and the limiting sleeve 33 can be accommodated in the sleeve 32. Furthermore, the guide sleeve 35 is detachably disposed between the support rod 1 and the sleeve 32. One end of the guide sleeve 35 abuts against the side of the second limiting part 321 facing away from the first elastic member 34. Thus, when the guide sleeve 35 is worn and needs to be replaced, the limiting sleeve 33 and the first elastic member 34 can be prevented from sliding out of the sleeve 32 during the replacement process. This allows the user to easily and quickly disassemble and replace the guide sleeve 35 without having to reinstall the limiting sleeve 33 and the first elastic member 34, thereby effectively simplifying the replacement process and improving the convenience of the replacement operation.

[0034] More specifically, the support leg assembly 4 includes a support leg 41 and a support rib 42. One end of the support leg 41 is rotatably connected to the sliding seat 31, and both ends of the support rib 42 are rotatably connected to the inner wall of the support leg 41 and the fixed seat 2, respectively. A locking component 5 is disposed at the other end of the support leg 41. The locking component 5 is used to lock or disengage the other end of the support leg 41 from the fixed seat 2, so that the sliding assembly 3 can be fixed or slid. Specifically, when the locking component 5 locks the other end of the support leg 41 to the fixed seat 2, the support leg 41 and the support rib 42 can be retracted to the outside of the support rod 1, so that the bracket 100 is in a retracted state. Since the limiting block 111 can pass through the first limiting part 311, and when the bracket 100 is in the retracted state, the limiting sleeve 33 can abut against the limiting block 111, so that the first elastic element 34 is compressed and stores energy. Therefore, when the drive locking assembly 5 unlocks the other end of the support foot 41 and disengages from the fixed seat 2, the first elastic element 34 can release energy and drive the entire sliding assembly 3 to slide toward the fixed seat 2 under the guidance of the guide sleeve 35, so as to drive the support foot 41 and the support rib 42 to automatically unfold for support.

[0035] It is worth mentioning that, such as Figure 2 As shown, in one embodiment, the support rod 1 includes a plurality of sequentially nested support rod segments 11, and the plurality of support rod segments 11 are telescopically configurable, thereby enabling the support rod 1 to adjust its support height. Understandably, the fixed base 2, sliding assembly 3, limiting block 111, support foot assembly 4, and locking assembly 5 are all disposed outside the outermost support rod segment 11.

[0036] Furthermore, as one specific implementation method in some embodiments of this utility model, such as Figure 7 and Figure 9As shown, the inner wall of the first limiting part 311 is provided with a relief groove 3112a, and the first limiting part 311 avoids the limiting block 111 through the relief groove 3112a.

[0037] Specifically, the inner wall of the first limiting part 311 is provided with an avoidance groove 3112a. The first limiting part 311 avoids the limiting block 111 through the avoidance groove 3112a. Thus, in the retracted state, the limiting block 111 can pass through the first limiting part 311 and abut against the limiting sleeve 33, so that the first elastic member 34 is compressed and stores energy. After the other end of the support foot 41 is unlocked and disengaged from the fixed seat 2, the sliding seat 31 can avoid the limiting block 111, thereby ensuring that the entire sliding assembly 3 can slide towards the fixed seat 2 under the drive of the first elastic member 34, so as to drive the support foot 41 and the support rib 42 to automatically unfold for support.

[0038] It should be noted that in other embodiments, the distance between the first limiting part 311 and the support rod 1 can be controlled to ensure that the limiting block 111 can pass smoothly through the first limiting part 311, while the first limiting part 311 can restrict the limiting sleeve 33 and the first elastic member 34 within the sleeve 32, thereby ensuring that the limiting block 111 can abut against the limiting sleeve 33, so that the first elastic member 34 is compressed and stores energy, and after the first elastic member 34 releases energy, the entire sliding assembly 3 can avoid the limiting block 111 and slide towards the fixed seat 2.

[0039] Furthermore, as one specific implementation method in some embodiments of this utility model, such as Figure 4 and Figure 8 As shown, the outer wall of the support rod 1 is also provided with a sliding groove 112, and the inner wall of the guide sleeve 35 is provided with a slider 354, which is slidably accommodated in the sliding groove 112.

[0040] Specifically, the outer wall of the support rod 1 is provided with a groove 112, and the inner wall of the guide sleeve 35 is provided with a slider 354, which slides within the groove 112. Thus, the guide sleeve 35 can provide a more precise guiding function, guiding the sliding component 3 to slide along the groove 112 of the support rod 1, effectively improving the smoothness and stability of the sliding component 3.

[0041] Furthermore, as one specific implementation method in some embodiments of this utility model, such as Figures 6 to 10 As shown, the sleeve 32 defines a receiving groove 323 on the side of the second limiting part 321 facing away from the first elastic member 34. The groove wall of the receiving groove 323 is provided with a buckle hole 3231. The outer wall of the guide sleeve 35 is provided with a buckle 3521. The buckle 3521 is fastened to the buckle hole 3231 so that the guide sleeve 35 can be detachably installed in the receiving groove 323.

[0042] Specifically, the groove wall of the receiving groove 323 is provided with a buckle hole 3231, and the outer wall of the guide sleeve 35 is provided with a buckle 3521. The buckle 3521 is fastened to the buckle hole 3231. Through the cooperation between the buckle 3521 and the buckle hole 3231, the guide sleeve 35 can be easily installed in the receiving groove 323 of the sleeve 32, and the guide sleeve 35 can be disassembled and replaced.

[0043] Furthermore, as one specific implementation method in some embodiments of this utility model, such as Figures 6 to 8 As shown, the guide sleeve 35 includes a guide ring 351, a first guide piece 352 and a second guide piece 353. The first guide piece 352 and the second guide piece 353 are spaced apart on the guide ring 351. A buckle 3521 is provided on the outer wall of the first guide piece 352, and a slider 354 is provided on the inner wall of the second guide piece 353 and the guide ring 351.

[0044] Specifically, the first guide plate 352 and the second guide plate 353 are spaced apart on the guide ring 351, and the buckle 3521 is provided on the outer wall of the first guide plate 352. Thus, a disassembly gap can be formed between the first guide plate 352 and the second guide plate 353. When replacing the guide sleeve 35, the buckle 3521 can be squeezed into the sleeve 32, so that the first guide plate 352 can move into the sleeve 32 relative to the second guide plate 353, thereby driving the buckle 3521 to disengage from the buckle hole 3231, making the guide sleeve 35 easier to disassemble and effectively improving the replacement efficiency of the guide sleeve 35.

[0045] Furthermore, as one specific implementation method in some embodiments of this utility model, such as Figures 6 to 8 As shown, the guide ring 351 has a raised edge 3511, which is located outside the receiving groove 323 and abuts against the sleeve 32.

[0046] Specifically, the guide ring 351 is provided with a raised edge 3511. The raised edge 3511 is located outside the receiving groove 323 and abuts against the sleeve 32. Thus, the raised edge 3511 can form a protective layer at the end of the sleeve 32 facing the fixed seat 2. When the sliding assembly 3 slides to the position of the fixed seat 2, the raised edge 3511 can play a buffering role, reduce the collision force between the sleeve 32 and the fixed seat 2, and protect the sleeve 32.

[0047] Furthermore, as one specific implementation method in some embodiments of this utility model, such as Figures 6 to 8 As shown, the guide sleeve 35 is made of elastic material.

[0048] Compared to rigid materials, the guide sleeve 35 is made of elastic material. On the one hand, it can reduce the friction between the guide sleeve 35 and the support rod 1, thereby reducing the wear of the guide sleeve 35 and extending its service life. On the other hand, it can make the guide sleeve 35 have a certain degree of plasticity and adaptability, thus making it easy to install or remove the guide sleeve 35.

[0049] Furthermore, as one specific implementation method in some embodiments of this utility model, such as Figures 9 to 10 As shown, the outer wall of the first limiting part 311 is provided with a mounting protrusion 3111a, and the sleeve 32 is provided with a mounting hole 322. The mounting protrusion 3111a is detachably installed in the mounting hole 322.

[0050] Specifically, the outer wall of the first limiting part 311 is provided with a mounting protrusion 3111a, and the sleeve 32 is provided with a mounting hole 322. The mounting protrusion 3111a cooperates with the mounting hole 322 to install and fix the sleeve 32 on the first limiting part 311 of the sliding seat 31. This allows the first limiting part 311 and the second limiting part 321 to cooperate to accommodate the first elastic member 34 and the limiting sleeve 33 within the sleeve 32, ensuring the stability of the entire sliding assembly 3 during operation. Furthermore, the mounting protrusion 3111a is detachably installed within the mounting hole 322, facilitating the assembly and disassembly of the sliding seat 31, the limiting sleeve 33, the first elastic member 34, and the sleeve 32.

[0051] Furthermore, as one specific implementation method in some embodiments of this utility model, such as Figures 9 to 10 As shown, the first limiting part 311 includes a first connecting piece 3111 and a second connecting piece 3112 that are spaced apart. A mounting protrusion 3111a is provided on the outer wall of the first connecting piece 3111, and a clearance groove 3112a is provided on the inner wall of the second connecting piece 3112.

[0052] Specifically, the first connecting piece 3111 and the second connecting piece 3112 are spaced apart, thereby forming a disassembly gap between the first connecting piece 3111 and the second connecting piece 3112. When disassembling the sliding seat 31 and the sleeve 32, the mounting protrusion 3111a can be pressed into the sleeve 32, so that the first connecting piece 3111 can move relative to the second connecting piece 3112 into the sleeve 32, thereby causing the mounting protrusion 3111a to disengage from the mounting hole 322, making the disassembly operation easy and convenient.

[0053] Furthermore, as one specific implementation method in some embodiments of this utility model, such as Figure 11As shown, the locking assembly 5 includes a locking member 51, a second elastic member 52, and a control button 53. The control button 53 is movably mounted on the fixed base 2. The locking member 51 is slidably connected to the inner wall of the other end of the support leg 41. The second elastic member 52 is disposed along the length of the support leg 41 on the inner wall of the other end of the support leg 41, and the two ends of the second elastic member 52 are respectively connected to one end of the locking member 51 and the inner wall of the support leg 41. The locking member 51 is provided with a locking hook portion 511, and the fixed base 2 is provided with a locking block 21. In the retracted state, the locking hook portion 511 is locked with the locking block 21. The control button 53 is used to drive the other end of the locking member 51 to move so that the locking hook portion 511 disengages from the locking block 21 and the sliding assembly 3 slides.

[0054] Specifically, the locking member 51 is slidably connected to the inner wall of the other end of the support leg 41. The locking member 51 is provided with a locking hook 511, and the fixed base 2 is provided with a locking block 21. When the locking hook 511 and the locking block 21 are locked, each support leg 41 can be fixed on the fixed base 2, so that the support leg 41 and the support rib can be folded away from the outside of the support rod 1 for easy storage. The control button 53 is movably disposed on the fixed base 2. Thus, the user only needs to press the control button 53 to easily and conveniently release the locking member 51 from the fixed base 2, so that the support leg assembly 4 is released from the fixed position, allowing the sliding component 3 to slide toward the fixed base 2 under the action of the first elastic member 34 and the guide sleeve 35, thereby driving the support leg 41 and the support rib 42 to unfold for support. Specifically, when the control button 53 is pressed, the control button 53 moves along the fixed base 2 and drives the other end of the locking member 51 to move along the inner wall of the support foot 41, so that the locking hook part 511 of the locking member 51 disengages from the locking block 21 of the fixed base 2, thereby allowing the support foot 41 to disengage from the fixed base 2.

[0055] Furthermore, a second elastic element 52 is disposed on the inner wall of the other end of the support leg 41 along the length direction of the support leg 41, and the two ends of the second elastic element 52 are respectively connected to one end of the locking element 51 and the inner wall of the support leg 41. Thus, when the locking hook 511 disengages from the locking block 21, the second elastic element 52 can drive the locking element 51 to automatically reset. The second elastic element 52 is a spring.

[0056] It should be understood that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some of the technical features; and all such modifications and substitutions should fall within the protection scope of the appended claims of this utility model.

Claims

1. A stent, characterized by, The application relates to a support frame. The support frame comprises a support rod, a fixing base, a sliding assembly, at least three support leg groups and a locking assembly. The outer wall of the support rod is provided with a limiting block. The fixing base is fixed to one end of the support rod away from the limiting block. The sliding assembly comprises a sliding base, a limiting sleeve, a first elastic member, a sleeve and a guide sleeve. The sliding base, the limiting sleeve and the first elastic member are sleeved on the support rod.

2. The stent of claim 1, wherein The sliding base is provided with a first limiting part.

3. The stent of claim 2, wherein, The sleeve is sleeved on the outside of the first limiting part, the limiting sleeve and the first elastic member.

4. The stent of claim 3, wherein, One end of the sleeve is provided with a second limiting part.

5. The stent of claim 4, wherein, The two ends of the first elastic member are connected with the limiting sleeve and the second limiting part respectively.

6. The stent of claim 5, wherein, The first elastic member is between the first limiting part and the second limiting part.

7. The stent defined in any one of claims 1-6, wherein, The limiting block can pass through the first limiting part.

8. The stent defined in any one of claims 2-6, wherein, When the support frame is in a folding state, the limiting sleeve abuts against the limiting block, so that the first elastic member is compressed and stored with energy.

9. The stent defined in Claim 8, wherein, The guide sleeve is detachably arranged between the support rod and the sleeve. One end of the guide sleeve abuts against the side of the second limiting part away from the first elastic member, so as to guide the sliding assembly to slide along the support rod. The other end of the support leg is provided with the locking assembly. The locking assembly is used for locking or separating the other end of the support leg from the fixing base, so that the sliding assembly can be fixed or slid. The inner wall of the first limiting part is provided with a avoiding slot. The outer wall of the support rod is further provided with a sliding groove. The inner wall of the guide sleeve is provided with a sliding block. The sleeve is limited by a containing groove on the side of the second limiting part away from the first elastic member. The groove wall of the containing groove is provided with a buckle hole. The outer wall of the first guide piece is provided with a buckle. The sliding block is arranged on the inner wall of the second guide piece and the guide ring. The guide ring is provided with a convex edge part. The convex edge part is located outside the containing groove and abuts against the sleeve. The guide sleeve is made of elastic material. The outer wall of the first limiting part is provided with a mounting protrusion. The sleeve is provided with a mounting hole. The mounting protrusion is detachably arranged in the mounting hole. The first limiting part comprises a first connecting piece and a second connecting piece arranged at intervals. The mounting protrusion is arranged on the outer wall of the first connecting piece. The avoiding slot is arranged on the inner wall of the second connecting piece.

10. The stent defined in any one of claims 1-6, wherein, The locking assembly comprises a locking piece, a second elastic piece and a control button, the control button is movably arranged on the fixing seat, the locking piece is in sliding connection with the inner wall of the other end of the supporting leg, the second elastic piece is arranged on the inner wall of the other end of the supporting leg along the length direction of the supporting leg, and the two ends of the second elastic piece are connected with one end of the locking piece and the inner wall of the supporting leg respectively, the locking piece is provided with a locking hook part, the fixing seat is provided with a locking block, and in the folding state, the locking hook part is locked with the locking block, the control button is used for driving the other end of the locking piece to move, so that the locking hook part is separated from the locking block, and the sliding assembly slides.

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