Telescopic support rod, ironing board and garment steamer

Abstract

The utility model discloses a telescopic support rod, ironing board and garment steamer belongs to ironing equipment technology, and the existing telescopic rod locking mechanism can not give consideration to locking reliable and quick locking or unlocking, the utility model discloses through for the first rod, second rod configuration inner cover and hoop assembly of being dressed together, and the inner cover is positioned on the second rod upper end portion and is located between the first rod and the second rod, the hoop assembly includes the hoop ring of being tightened or being relaxed through handle, and the hoop ring is positioned on the second rod upper end portion and is at least partially covered in the outer cover of inner cover for the inner cover hoop ring is tightened on the outer wall of first rod or the inner cover is relaxed from the outer wall of first rod. Through handle fast hoop ring is tightened or is relaxed, and through hoop ring, the inner cover is tightened on the outer wall of first rod and realizes reliable locking. Compared with the nut-like joint of prior art, through handle can fast hoop ring is tightened or is relaxed. Compared with the compression block of prior art, the inner cover can be tight first rod under the tightening effect of hoop ring, and first rod is tightly held from around, and reliable locking.

Description

Technical Field

[0001] This utility model belongs to the field of ironing equipment technology, specifically relating to a telescopic support rod, an ironing board, and a garment steamer. Background Technology

[0002] Telescopic support rods are used to support ironing boards or garment racks to form ironing boards or garment steamers. The length is adjusted by extending or retracting the telescopic support rod.

[0003] Patent document CN203627453U discloses a telescopic rod comprising at least two telescopically connected unit tubes, which are locked together by a locking mechanism. The locking mechanism includes a locking seat, which includes a sleeve portion nested at the front end of the unit tubes. The front end sidewall of the unit tubes has a groove, and the sleeve portion has a through hole corresponding to the groove. A pressing block is disposed within the through hole. A snap fastener is hinged to the circumferential side of the sleeve portion. The snap fastener includes a handle portion and a pressing part located at the head end of the handle portion. The pressing part is hinged to the outside of the pressing block, and the pressing part has an arc-shaped cross-section. The hinge point of the pressing part is located at an eccentric position on the cross-section of the pressing part. In this telescopic rod locking mechanism, the pressing block only locally presses, making the two telescopically connected unit tubes prone to wobbling and resulting in unreliable locking. Furthermore, when the pressing block applies a large compressive force to the unit tubes to ensure reliable locking, excessive local force on the compressed unit tubes can cause deformation.

[0004] Patent document CN 210368383 U discloses a telescopic rod and a garment steamer having the same. The telescopic rod includes: a first rod; a second rod, the first rod being movably inserted inside the second rod; a sleeve, fitted over and fixed to the second rod, the sleeve including a locking part located outside the first rod; a connector, movably fitted over the outside of the sleeve, which, when moved, drives the locking part to have a locked position and an unlocked position; and a limiting part, disposed on the connector and located below the sleeve, the sleeve limiting the displacement of the limiting part along the axis of the second rod. This telescopic rod achieves locking or unlocking by turning a nut-like connector, but turning the connector often requires multiple turns, which is not conducive to quick locking or unlocking. Utility Model Content

[0005] This utility model addresses the shortcomings of existing telescopic rod locking mechanisms that cannot simultaneously ensure reliable locking and rapid locking or unlocking. It provides a telescopic support rod, ironing board, and garment steamer, which allows for rapid tightening or loosening of the hoop via a handle, and reliably locking the inner sleeve by clamping it to the outer wall of the first rod.

[0006] To achieve the above objectives, the telescopic support rod of this utility model includes: First shot; The second rod is tubular and fits over the first rod; The inner sleeve is positioned at the upper end of the second rod and located between the first rod and the second rod; A clamp assembly includes a clamp that can be tightened or loosened by a handle, the clamp being positioned at the upper end of a second rod and at least partially fitted over an inner sleeve for tightening the inner sleeve onto the outer wall of a first rod or loosening the inner sleeve from the outer wall of the first rod.

[0007] This telescopic support rod is used to vertically support the structure above it. When the hoop is loosened by the handle, the first rod can extend or retract relative to the second rod to adjust the length of the entire telescopic support rod. Therefore, it is necessary to quickly tighten or loosen the hoop and achieve reliable locking. As described above, the hoop is quickly tightened or loosened by the handle, and the inner sleeve is tightened to the outer wall of the first rod by the hoop to achieve reliable locking. Compared with the nut-like joint of the prior art, the hoop can be quickly tightened or loosened by the handle. Compared with the clamping block of the prior art, the inner sleeve can tighten the first rod under the clamping action of the hoop, tightly holding the first rod from all sides and reliably locking it.

[0008] Preferably, the upper end of the second rod has a locking hole in its tube wall, and the inner sleeve has an elastic protrusion. The elastic protrusion locks into the locking hole, positioning the inner sleeve at the upper end of the second rod. This positioning of the inner sleeve at the upper end of the second rod prevents movement of the inner sleeve during the extension or retraction of the first rod.

[0009] Preferably, the inner sleeve has elastic legs, and elastic protrusions are provided on the elastic legs. The elastic deformation of the elastic legs allows the elastic protrusions to be smoothly engaged in the mounting holes.

[0010] Preferably, the inner sleeve has a longitudinal break. When tightened by the clamp, the inner sleeve extends towards the longitudinal break, ensuring that it can bind the first rod under the clamping action of the clamp, allowing each part of the inner sleeve to tightly hold the first rod from all sides, reliably locking it. Furthermore, when the clamp releases the inner sleeve, it can return to its original position, allowing the first rod to smoothly extend and retract relative to the second rod. In contrast, if the inner sleeve does not have this longitudinal break and is instead a closed sleeve or ring shape, under the clamping action of the clamp, the inner sleeve will be squeezed into a wavy or wrinkled shape at least locally, and the inner sleeve can only locally bind the first rod, resulting in poor locking reliability. Moreover, once the inner sleeve is squeezed into a wavy or wrinkled shape, it is difficult to return to its original position, which will cause the first rod to experience greater resistance and become less smooth when extending and retracting relative to the second rod.

[0011] Preferably, the upper end of the second rod has a notch, and a hoop is fitted onto the upper end of the second rod, adjacent to the inner sleeve at the notch. Because of the notch, the upper end of the second rod also experiences a tightening effect when the hoop is tightened. That is, this structure tightens both the inner sleeve and the upper end of the second rod simultaneously, thus creating a structure where, from the outside in, the hoop tightens the inner sleeve, and the inner sleeve tightens the first rod. Outside the notch at the upper end of the second rod, the structure further creates a structure where the hoop tightens the upper end of the second rod, the upper end of the second rod tightens the inner sleeve, and the inner sleeve tightens the first rod. This achieves better tightening reliability.

[0012] Preferably, the hoop is positioned on the bottom surface of the notch. This ensures that the notch is concealed and that the notch area remains regular.

[0013] Preferably, the inner wall of the hoop has a protrusion that extends into the notch for tightening the inner sleeve, and the hoop rests on the bottom surface of the notch via the protrusion. This structure not only allows the hoop to tighten the inner sleeve, but also ensures that the structure at the notch is solid, preventing the formation of a cavity structure that would reduce strength.

[0014] Preferably, the upper end face of the protrusion is flush with the upper end face of the second rod, the upper end face of the hoop is higher than the upper end face of the protrusion and the upper end face of the second rod and maintains a first gap with the first rod, and the upper end of the inner sleeve has a thickened portion that fills the first gap. Accordingly, the inner sleeve and the hoop overlap in the length direction and form mutual support, ensuring the structural strength at this point.

[0015] Preferably, a second gap is maintained between the side of the protrusion and the side of the notch. When the hoop is tightened, deformation space is left for the tightening of the upper end of the second rod.

[0016] Preferably, the upper end of the inner sleeve has an outward flange, and the upper end face of the hoop is positioned against the outward flange. Accordingly, the lower end of the hoop is limited by the bottom surface of the notch, and the upper end face of the hoop is positioned against the outward flange, thereby positioning the hoop at the upper end of the second rod.

[0017] Preferably, the clamp assembly includes a pull rod, and the clamp has opposing first and second arms. The pull rod passes through the first and second arms, with one end of the pull rod abutting against the first arm and the other end connected to a handle. The handle has a cam portion that presses against the second arm to tighten or loosen the clamp by flipping the handle. Accordingly, the clamp can be quickly tightened or loosened by flipping the handle.

[0018] Preferably, the first rod has a groove extending along its length, the inner sleeve has a longitudinal break and bends located on both sides of the longitudinal break, the bends fitting into the groove, and the first and second arms have compression portions fitting into the bends. When the hoop is tightened, the first and second arms move closer together, and the compression portions press the bends into the groove, creating a pulling effect on the inner sleeve, allowing the inner sleeve to better fit and hold the first rod.

[0019] Preferably, the lower end of the first rod is located inside the second rod and is fitted with a first plug. The first plug rests against the inner wall of the second rod via an elastic part, and is blocked by an inner sleeve, thus restricting the lower end of the first rod within the tube of the second rod. This prevents the first rod from being pulled out of the second rod.

[0020] Preferably, a second plug is provided at the lower end of the second rod.

[0021] Preferably, the telescopic support rod further includes a third rod, which is tubular and sleeved outside the second rod. The inner sleeve and clamp assembly are disposed between the second and third rods. The inner sleeve is positioned at the upper end of the third rod and located between the second and third rods. The clamp is positioned at the upper end of the third rod and at least partially sleeved outside the inner sleeve to tighten the inner sleeve onto the outer wall of the second rod or to loosen the inner sleeve from the outer wall of the second rod. Accordingly, the length of the telescopic support rod can be increased as needed.

[0022] The ironing board of this utility model includes: The telescopic support rod of this utility model; The plate is directly or indirectly supported by the upper end of the telescopic support rod.

[0023] The garment steamer of this utility model includes: Host; The telescopic support rod of this utility model; The board or hanger is directly or indirectly supported on the upper end of the telescopic support rod.

[0024] This invention provides an inner sleeve and a clamping assembly for a first and second rod that are fitted together. The inner sleeve is positioned at the upper end of the second rod and located between the first and second rods. The clamping assembly includes a hoop that can be tightened or loosened by a handle. The hoop is positioned at the upper end of the second rod and at least partially covers the inner sleeve, used to clamp the inner sleeve to the outer wall of the first rod or to loosen the inner sleeve from the outer wall of the first rod. The hoop is quickly tightened or loosened by the handle, and the hoop secures the inner sleeve to the outer wall of the first rod, achieving reliable locking. Compared to the nut-like joints of the prior art, the hoop can be quickly tightened or loosened by the handle. Compared to the clamping blocks of the prior art, the inner sleeve, under the clamping action of the hoop, can tightly bind the first rod from all sides, reliably locking it in place. Attached Figure Description

[0025] Figure 1 This is a partial schematic diagram from one perspective of the telescopic support rod of this utility model; Figure 2 for Figure 1 A schematic diagram of the telescopic support rod from another perspective; Figure 3 for Figure 1-2 A schematic diagram of the telescopic support rod as shown from one perspective (orthographic projection). Figure 4for Figure 3 Enlarged schematic diagram of the AA-direction cross section; Figure 5 for Figure 3 Enlarged schematic diagram of the BB-direction cross section; Figure 6 for Figure 3 A schematic diagram of the CC-direction cross-section; Figure 7 for Figure 6 Schematic diagram of the DD-direction cross section; Figure 8 for Figure 1 An exploded view of the telescopic support rod from the perspective shown. Figure 9 for Figure 2 An exploded view of the telescopic support rod from the perspective shown. Figure 10 This is a schematic diagram of a garment steamer according to an embodiment of the present invention; Figure 11 This is a schematic diagram of a garment steamer according to another embodiment of the present invention; Explanation of the labels in the diagram: 100 First rod, 101 Groove, 102 First plug, 103 Elastic part; 200 Second rod, 201 Upper end of second rod, 202 Snap-fit ​​hole, 203 Notch, 204 Bottom surface, 205 Upper end face of second rod, 206 Inner wall of second rod, 207 Second plug, 208 Side of notch; 300 Inner sleeve, 301 Elastic protrusion, 302 Elastic leg, 303 Longitudinal break, 304 Thickened part, 305 Outer flange, 306 Bending part; 400 clamp assembly, 410 handle, 411 cam section, 420 Hoop, 421 Protrusion, 422 Upper end face of protrusion, 423 Upper end face of hoop, 424 First gap, 425 Second gap, 426 First arm, 427 Second arm, 428 Extrusion part, 429 Side of protrusion 430 pull rod, 431 head; 10 Telescopic support rod; 20 Plate; 30 Main unit; 31 Steam pipe; 32 Iron; 40 Clothes hanger; 50 Base. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this utility model are intended to cover non-exclusive inclusion, such as a method or product that includes a series of technical features, not limited to those technical features explicitly listed, but also including other technical features that may be included in the method or product but not explicitly listed.

[0028] In the description of this utility model, it should be understood that the technical features defined by terms such as "first" and "second" which have a sequential concept are only for the purpose of clearly describing the defined technical features and making the defined technical features clearly distinguishable from other technical features, and do not represent that they are named in this way in actual implementation. Therefore, they should not be construed as limitations on this utility model.

[0029] The present invention will now be described in detail with reference to specific embodiments and accompanying drawings.

[0030] like Figure 1-9 As shown, the telescopic support rod includes a first rod 100, a second rod 200, an inner sleeve 300, and a clamp assembly 400.

[0031] The first rod 100 is tubular. In other embodiments, it can also be a solid rod.

[0032] The second rod 200 is tubular and fits over the first rod 100, allowing the first and second rods to extend and retract relative to each other to adjust the length of the entire telescopic support rod.

[0033] The inner sleeve 300 is positioned at the upper end 201 of the second rod and is located between the first rod 100 and the second rod 200. Therefore, the position of the inner sleeve relative to the upper end of the second rod is fixed. The upper end of the second rod is a segment of the upper part of the second rod.

[0034] The clamp assembly 400 includes a clamp 420 that can be tightened or loosened by a handle 410. The clamp 420 is positioned at the upper end 201 of the second rod, and its position relative to the upper end 201 of the second rod is fixed. Furthermore, the clamp 420 is at least partially fitted over the inner sleeve 300 to tighten the inner sleeve onto the outer wall of the first rod or to loosen the inner sleeve from the outer wall of the first rod.

[0035] In the illustrated structure, the clamp assembly 400 also includes a pull rod 430. The clamp 420 has opposing first arms 426 and second arms 427. The pull rod 430 passes through the first arms 426 and second arms 427. One end of the pull rod 430 abuts against the first arm 426 via a head 431, and the other end of the pull rod 430 is connected to a handle 410. The handle 410 has a cam portion 411, which presses against the second arm 427 to tighten or loosen the clamp by flipping the handle. Accordingly, the clamp can be quickly tightened or loosened by flipping the handle.

[0036] In other embodiments, one end of the handle can be rotatably connected to the second arm via a pin, and a collar that fits over the first arm can be connected to the middle of the handle. The collar can be tightened or loosened by flipping the handle.

[0037] This telescopic support rod is used to vertically support the structure above it. When the hoop is loosened by the handle, the first rod can extend or retract relative to the second rod to adjust the length of the entire telescopic support rod. Therefore, it is necessary to quickly tighten or loosen the hoop and achieve reliable locking. As described above, the hoop is quickly tightened or loosened by the handle, and the inner sleeve is tightened to the outer wall of the first rod by the hoop to achieve reliable locking. Compared with the nut-like joint of the prior art, the hoop can be quickly tightened or loosened by the handle. Compared with the clamping block of the prior art, the inner sleeve can tighten the first rod under the clamping action of the hoop, tightly holding the first rod from all sides and reliably locking it.

[0038] like Figure 8-9 As shown, the tube wall of the upper end 201 of the second rod is provided with a locking hole 202, and the inner sleeve 300 has an elastic protrusion 301, the elastic protrusion 301 as follows: Figure 6 The inner sleeve is positioned at the upper end of the second rod by the locking hole 202, preventing movement of the inner sleeve during the extension and retraction of the first rod. Specifically, the inner sleeve 300 has an elastic leg 302, with an elastic protrusion 301 located on the elastic leg 302. The elastic deformation of the elastic leg 302 allows the elastic protrusion 301 to smoothly engage with the locking hole 202.

[0039] like Figure 8-9As shown, the inner sleeve 300 has a longitudinal break 303. When tightened by the clamp, the inner sleeve extends towards the longitudinal break, ensuring that it can bind the first rod under the clamping action of the clamp, allowing each part of the inner sleeve to tightly hold the first rod from all sides, reliably locking it. Furthermore, when the clamp releases the inner sleeve, it can return to its original position, allowing the first rod to smoothly extend and retract relative to the second rod. In contrast, if the inner sleeve does not have this longitudinal break and is instead a closed sleeve or ring, it will be squeezed into a wavy or wrinkled shape under the clamping action of the clamp, and the inner sleeve can only locally bind the first rod, resulting in poor locking reliability. Moreover, once the inner sleeve is squeezed into a wavy or wrinkled shape, it is difficult to return to its original position, which will cause the first rod to experience greater resistance and become less smooth when extending and retracting relative to the second rod.

[0040] like Figure 8-9 As shown, the upper end 201 of the second rod has a notch 203. A hoop 420 is fitted onto the upper end 201 of the second rod and adjacent to the inner sleeve 300 at the notch. Because of the notch 203, the upper end 201 of the second rod also experiences a tightening effect when the hoop is tightened. That is, this structure tightens both the inner sleeve and the upper end of the second rod simultaneously. Thus, at the notch, from the outside in, the hoop 420 tightens the inner sleeve 300, and the inner sleeve 300 tightens the first rod 100. Outside the notch at the upper end of the second rod, the hoop 420 tightens the upper end 201 of the second rod, the upper end 201 of the second rod tightens the inner sleeve 300, and the inner sleeve 300 tightens the first rod 100. This achieves better tightening reliability.

[0041] like Figure 7 As shown, the hoop 420 is situated on the bottom surface 204 of the notch. This ensures that the notch is concealed and that the notch area remains regular. Furthermore, as... Figure 8-9 As shown, the inner wall of the hoop 420 has a protrusion 411 that protrudes into the notch for tightening the inner sleeve. The hoop 420 sits on the bottom surface 204 of the notch via the protrusion 411. This structure not only allows the hoop to tighten the inner sleeve, but also ensures that the structure at the notch is solid, preventing the formation of a cavity structure that would reduce strength.

[0042] like Figure 6-7 As shown, the upper end face 422 of the protrusion is flush with the upper end face 205 of the second rod. The upper end face 423 of the hoop is higher than the upper end face 422 of the protrusion and the upper end face 205 of the second rod, and maintains a first gap 424 with the first rod 100. The upper end of the inner sleeve 300 has a thickened portion 304, which fills the first gap 424. Accordingly, the inner sleeve and the hoop are made to overlap in the length direction and form mutual support, ensuring the structural strength at this point.

[0043] like Figure 4-5 As shown, the protruding side 429 maintains a second gap 425 with the side 208 of the notch. When the hoop is tightened, deformation space is left for the deformation and tightening of the upper end of the second rod.

[0044] like Figure 6-7 As shown, the inner sleeve 300 has an outer flange 305 at its upper end, and the upper end face 423 of the hoop is positioned against the outer flange 305. Accordingly, the lower end of the hoop is limited by the bottom surface of the notch, and the upper end face of the hoop is positioned against the outer flange, thereby positioning the hoop at the upper end of the second rod.

[0045] like Figure 8 As shown, the first rod 100 has a groove 101 extending along its length, and the inner sleeve 300 has a longitudinal break 303 and bent portions 306 located on both sides of the longitudinal break. The bent portions 306 fit into the groove 101, and the first arm and the second arm have pressing portions 428 that fit into the bent portions 306. When the clamp is tightened, the first arm and the second arm move closer together, and the pressing portions 428 press the bent portions 306 into the groove 101, creating a pulling effect on the inner sleeve, allowing the inner sleeve to better fit against the first rod and hold it tightly. Similarly, the second rod also has a groove extending along its length. This makes it so that the first rod and the second rod cannot rotate relative to each other, but can only adjust their lengths by relative extension and retraction.

[0046] like Figure 8-9 As shown, the lower end of the first rod 100 is located inside the second rod 200 and is fitted with a first plug 102. The first plug 102 rests against the inner wall 206 of the second rod via an elastic part 103, preventing the lower end of the first rod from wobbling inside the second rod, preventing friction noise caused by contact between the first rod (made of metal tubing, such as aluminum tubing) and the second rod, and maintaining appropriate damping when the first and second rods extend and retract relative to each other. Figure 6-7 As shown, the first plug 102 is blocked by the inner sleeve 300, which restricts the lower end of the first rod inside the tube of the second rod, thus preventing the first rod from being pulled out of the second rod.

[0047] like Figure 8-9 As shown, a second plug 207 is configured at the lower end of the second rod 200.

[0048] The telescopic support rod with the structure described above is also easy to assemble: The clamp 420 of the clamp assembly 400 is placed on the bottom surface 204 of the notch and fitted onto the upper end 201 of the second rod. Then, the inner sleeve 300 is pressed downward from inside the clamp 420 until the elastic protrusion 301 is engaged in the engagement hole 202. Figure 6-7 The inner sleeve 300 and the clamp assembly 400 are positioned at the upper end 201 of the second rod. The first plug 102 is fastened to the lower end of the first rod 100, and the upper end of the first rod 100 is inserted upward from the lower end of the second rod 200 into the cavity of the second rod and out through the inner sleeve 300. The first plug 102 is located inside the cavity of the first rod. Finally, the second plug 207 is installed at the lower end of the second rod 200.

[0049] To extend the length of the telescopic support rod as needed, the telescopic support rod also includes a third rod, which is tubular and fits over the second rod. An inner sleeve and clamp assembly are disposed between the second and third rods. The inner sleeve is positioned at the upper end of the third rod and located between the second and third rods. The clamp is positioned at the upper end of the third rod and at least partially fits over the inner sleeve to tighten the inner sleeve onto the outer wall of the second rod or to loosen the inner sleeve from the outer wall of the second rod. Furthermore, the structure for locking and unlocking the first and second rods via the inner sleeve and clamp assembly is also applied to the second and third rods. Since the outer contour of the second rod's cross-section is larger than that of the first rod, and the outer contour of the third rod's cross-section is larger than that of the second rod, the specifications of the inner sleeve and clamp assembly used for the second and third rods are correspondingly larger.

[0050] Although the above text and illustrations show the positional relationship of the second rod below and the first rod above, this is only to illustrate the structure of the telescopic support rod. In actual use, this is not a limitation; that is, the first rod below and the second rod above are not excluded. When the telescopic support rod includes a third rod, in actual use, the entire support rod can also be arranged in the order of the first rod, the second rod, and the third rod from bottom to top, as needed.

[0051] Figure 1-9 The telescopic support rod 10 shown can be used as follows: Figure 10-11 The ironing board is constructed by supporting the board body 20, which is directly or indirectly supported on the upper end of the telescopic support rod 10. In particular, the board body 20 can change its tilt angle as needed, and the height of the board body can be adjusted by adjusting the length of the telescopic support rod.

[0052] Figure 1-9 The telescopic support rod shown can be used as follows: Figure 10-11 The garment steamer is configured to support the plate 20 or the hanger 40, wherein the plate 20 or the hanger 40 is directly or indirectly supported on the upper end of the telescopic support rod 10. The garment steamer includes a main unit 30, which generates steam and delivers it to the ironing head 32 via a steam pipe 31. The steam is released from the ironing head 32 for ironing clothes hanging on the hanger 40 or laid on the plate 20.

[0053] exist Figure 10 In the middle section, the telescopic support rod 10 is a single, relatively thick rod, used to maintain sufficient support and bending resistance. In comparison, in... Figure 11 In the case of two telescopic support rods 10, the telescopic support rods 10 can be appropriately thinned. To maintain stability, Figure 10 The center is equipped with a base 50, the main unit 30 is located on the base 50, and the lower end of the telescopic support rod 10 is mounted on the base 50. Figure 11 In the middle, the lower end of the telescopic support rod 10 is assembled to the main unit 30. Among them, Figure 11The steam pipe 31 and the ironing head 32 are omitted.

Claims

1. Telescopic support rod, characterized by: include: First shot (100); The second rod (200) is tubular and fits over the first rod; The inner sleeve (300) is positioned at the upper end (201) of the second rod and is located between the first rod and the second rod; The clamp assembly (400) includes a clamp (420) that can be tightened or loosened by a handle (410), the clamp (420) being positioned at the upper end (201) of the second rod and at least partially fitted over the inner sleeve (300) for tightening the inner sleeve onto the outer wall of the first rod or loosening the inner sleeve from the outer wall of the first rod.

2. The telescopic support rod according to claim 1, characterized in that: The upper end (201) of the second rod has a mounting hole (202) on its tube wall, and the inner sleeve (300) has an elastic protrusion (301). The elastic protrusion (301) is mounted in the mounting hole (202) to position the inner sleeve at the upper end of the second rod.

3. The telescopic support rod according to claim 2, characterized in that: The inner sleeve (300) has an elastic leg (302), and an elastic protrusion (301) is provided on the elastic leg (302).

4. The telescopic support rod according to claim 1, characterized in that: The inner sleeve (300) has a longitudinal break (303).

5. The telescopic support rod according to claim 1, characterized in that: The upper end (201) of the second rod has a notch (203), and the hoop (420) is fitted onto the upper end (201) of the second rod and is adjacent to the inner sleeve (300) at the notch (203).

6. The telescopic support rod according to claim 5, characterized in that: The hoop (420) is located on the bottom surface (204) of the notch.

7. The telescopic support rod according to claim 6, characterized in that: The inner wall of the hoop (420) has a protrusion (421) that protrudes into the notch (203) for tightening the inner sleeve, and the hoop (420) sits on the bottom surface (204) of the notch via the protrusion (421).

8. The telescopic support rod according to claim 7, characterized in that: the protrusion... The upper end face (422) is flush with the upper end face (205) of the second rod. The upper end face (423) of the hoop is higher than the upper end face (422) of the protrusion and the upper end face (205) of the second rod and maintains a first gap (424) with the first rod (100). The upper end of the inner sleeve (300) has a thickened part (304) that fills the first gap (424).

9. The telescopic support rod according to claim 7, characterized in that: The protruding side (429) maintains a second gap (425) with the side of the notch (208).

10. The telescopic support rod according to claim 6, characterized in that: The inner sleeve (300) has an outer flange (305) at its upper end, and the upper end face (423) of the hoop is positioned against the outer flange (305).

11. The telescopic support rod according to claim 1, characterized in that: The clamp assembly (400) includes a pull rod (430) and a clamp (420) having opposing first arms (426) and second arms (427). The pull rod (430) passes through the first arm (426) and the second arm (427). One end of the pull rod (430) abuts against the first arm (426), and the other end of the pull rod (430) is connected to a handle (410). The handle (410) is provided with a cam (411), which presses against the second arm (427) to tighten or loosen the clamp by the pull rod when the handle is flipped.

12. The telescopic support rod according to claim 11, characterized in that: The first rod (100) has a groove (101) extending along its length, the inner sleeve (300) has a longitudinal break (303) and bends (306) located on both sides of the longitudinal break, the bends (306) extending into the groove (101), and the first arm (426) and the second arm (427) have extrusion portions (428) protruding into the bends (306).

13. The telescopic support rod according to claim 1, characterized in that: The lower end of the first rod (100) is located inside the second rod (200) and is equipped with a first plug (102). The first plug (102) is supported by the inner wall (206) of the second rod via the elastic part (103). The first plug (102) is blocked by the inner sleeve (300) to restrict the lower end of the first rod inside the tube of the second rod.

14. The telescopic support rod according to claim 1, characterized in that: The second plug (207) is installed at the lower end of the second rod (200).

15. The telescopic support rod according to any one of claims 1-14, characterized in that: The telescopic support rod also includes a third rod, which is tubular and sleeved outside the second rod. The inner sleeve and clamp assembly are disposed between the second rod and the third rod. The inner sleeve is positioned at the upper end of the third rod and is located between the second rod and the third rod. The clamp is positioned at the upper end of the third rod and is at least partially sleeved outside the inner sleeve to clamp the inner sleeve to the outer wall of the second rod or to loosen the inner sleeve from the outer wall of the second rod.

16. An ironing board, characterized by: include: The telescopic support rod (10) according to any one of claims 1-15; The plate (20) is directly or indirectly supported on the upper end of the telescopic support rod (10).

17. Garment steamer, characterized by: include: Host (30); The telescopic support rod (10) according to any one of claims 1-15; The board (20) or the hanger (40) is directly or indirectly supported on the upper end of the telescopic support rod (10).

Images