CN215011464U

CN215011464U - Pull structure and backpack hair-dryer

Info

Publication number: CN215011464U
Application number: CN202121397553.7U
Authority: CN
Inventors: 汤亚斌; 上官云杰
Original assignee: Globe Jiangsu Co Ltd
Current assignee: Globe Jiangsu Co Ltd
Priority date: 2021-06-22
Filing date: 2021-06-22
Publication date: 2021-12-07
Anticipated expiration: 2031-06-22

Abstract

The utility model discloses a drawing structure and a backpack type hair drier, wherein the drawing structure comprises a button assembly, and the drawing structure comprises a button and a push rod, the button is arranged at one end of a first guide rail, one end of the push rod is connected with the button, and the other end of the push rod is inserted into the first guide rail; the second guide rail is sleeved at one end of the first guide rail, which is far away from the button; the third guide rail is sleeved and fixed on the second guide rail; and the buckle assembly is arranged at the other end of the first guide rail and is positioned in the second guide rail, and the buckle assembly has an unlocking state and a locking state corresponding to the unlocking and locking of the first guide rail and the second guide rail. The utility model discloses a pull structure can be applied to the connection of the hair-dryer unit and the knapsack unit of backpack hair-dryer, makes the interval of knapsack unit and hair-dryer unit adjustable to satisfy different size users' demand.

Description

Pull structure and backpack hair-dryer

Technical Field

The utility model relates to a garden instrument technical field, in particular to pull structure and backpack hair-dryer.

Background

Compared with an engine type tool, the electric tool is more environment-friendly and further widely applied. In order to facilitate carrying of a user, the backpack type hair drier is adopted at present, the user carries the equipment on the body, the weight of the equipment is born through the body, the force on the hands is reduced, and the fatigue of the user is relieved.

The interval of knapsack unit and handheld part is fixed among the current backpack hair-dryer, unable automatically regulated, and the operator of different sizes is suitable for not fine at fixed interval, influences customer experience.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a drawing structure and a backpack type hair dryer for solving the technical problems that the backpack unit and the hand-held part of the backpack type hair dryer in the prior art are fixed at intervals and are not suitable for operators of different body types.

To achieve the above and other related objects, the present invention provides a drawing structure, which includes:

a first guide rail;

the button assembly comprises a button and a push rod, the button is installed at one end of the first guide rail, one end of the push rod is connected with the button, and the other end of the push rod is inserted into the first guide rail;

the second guide rail is sleeved at one end of the first guide rail, which is far away from the button;

the third guide rail is sleeved and fixed on the second guide rail; and

the buckle assembly is arranged at the other end of the first guide rail and is positioned in the second guide rail, and the buckle assembly is provided with an unlocking state and a locking state corresponding to the unlocking and locking of the first guide rail and the second guide rail;

when the button is pressed to drive the push rod to move to trigger the unlocking state of the buckle assembly, the second guide rail can be controlled to slide along the first guide rail to adjust the length of the drawing structure.

In an embodiment of the present invention, the first guide rail is close to the side wall of one end of the button, and an annular limiting groove is provided thereon.

The utility model discloses an in an embodiment, the button subassembly still includes the push pedal, the push pedal with keeping away from of push rod the one end of button is connected, just the push pedal is located in the first guide rail.

In an embodiment of the present invention, the fastening assembly includes a fastening seat, a fastening member, a driving rod, and an elastic member; one end of the buckle seat is fixed on the first guide rail; the clamping piece is arranged in the clamping seat, and one side of the clamping piece extends outwards to form a thimble; the elastic piece is arranged on one side of the buckle seat far away from the thimble; one end of the driving rod is close to or in contact with the push rod, and the other end of the driving rod is inserted into the buckling seat and matched with the inclined surface of the buckling piece.

In an embodiment of the present invention, the second guide rail is provided with a plurality of locking holes corresponding to the locking holes of the ejector pins, the locking holes being disposed along the sliding direction at intervals on one side of the ejector pins.

In an embodiment of the present invention, the buckle seat includes a first buckle seat and a second buckle seat connected to each other.

In an embodiment of the present invention, the driving rod is located on the inner portion of the buckle seat, and the limiting protrusion is used for preventing the driving rod from being disengaged from the buckle seat.

In an embodiment of the present invention, an end of the driving rod away from the push rod has a first inclined plane facing a direction away from the thimble; and a second inclined plane matched with the first inclined plane is arranged on one side of the buckling piece facing the driving rod.

In an embodiment of the present invention, a first annular limiting portion is disposed in the middle of the second guide rail, a second annular limiting portion matched with the first annular limiting portion is disposed on the inner wall of the third guide rail, one of the first annular limiting portion and the second annular limiting portion is an annular rib, and the other is an annular groove.

The utility model discloses an in an embodiment, keeping away from of second guide rail the one end of button is outwards formed with annular protruding edge along circumference, be provided with on the inner wall of third guide rail with annular protruding edge assorted annular groove.

In an embodiment of the present invention, the third guide rail includes a first guide rail shell and a second guide rail shell that are fixed in a butt joint manner.

In an embodiment of the present invention, the third guiding rail is provided with a socket at one end of the button.

To achieve the above and other related objects, the present invention also provides a backpack hair dryer, including:

a blower unit;

a backpack unit; and

a pull structure mounted within the backpack unit, the pull structure comprising:

a first guide rail;

the third guide rail is sleeved and fixed on the second guide rail;

the buckle assembly is arranged at the other end of the first guide rail and is positioned in the second guide rail;

the button is positioned on one side of the backpack unit, one end of the third guide rail, which is far away from the button, extends out of the other side of the backpack unit and is connected with the blower unit, and the buckle assembly has an unlocking state and a locking state corresponding to the unlocking and locking of the first guide rail and the second guide rail;

when the distance between the blower unit and the backpack unit is adjusted, the button is pressed to trigger the unlocking state of the buckle assembly, then the second guide rail is controlled to slide along the first guide rail to adjust the length of the third guide rail extending out of the backpack unit, and after the adjustment is in place, the buckle assembly enters the locking state.

In an embodiment of the present invention, the blower unit and the end of the third rail extending out of the backpack unit are detachably connected.

In an embodiment of the present invention, the drawing structure further includes a spring plate; and a plurality of limiting grooves are formed in the side wall of the third guide rail at intervals along the sliding direction, one end of the reed is inserted into one limiting groove, and the other end of the reed is fixed with the inner wall of the backpack unit.

In an embodiment of the present invention, the backpack unit is provided with a USB interface.

In an embodiment of the present invention, the top of the battery pack is provided with a spacing mounting groove for mounting the limiting member and a mounting groove cover for covering the spacing mounting groove, the mounting groove cover is provided with a first opening and a second opening for extending the spacing protruding portion and the spacing pressing portion.

The utility model discloses a pull structure can be applied to the connection of the hair-dryer unit and the knapsack unit of backpack hair-dryer, makes the interval of knapsack unit and hair-dryer unit adjustable to satisfy different size users' demand.

The utility model discloses a backpack hair-dryer sets up the USB interface on knapsack unit, makes things convenient for the operator to realize charging other electrical apparatus (for example cell-phone).

Drawings

Fig. 1 is a schematic perspective view of a backpack hair dryer of the present invention.

Fig. 2 is a schematic perspective view of a backpack unit equipped with a drawing structure of a backpack blower according to the present invention.

Fig. 3 shows an exploded view of a backpack unit equipped with a drawing structure for a backpack hair dryer according to the present invention.

Fig. 4 is a schematic perspective view of a blower assembly of a blower unit of a backpack blower according to the present invention.

Fig. 5 is a schematic perspective view of the drawing structure of the backpack hair dryer of the present invention.

Fig. 6 is an exploded view of the drawing structure of the backpack hair dryer of the present invention.

Fig. 7 is a schematic perspective view of the buckle assembly of the drawing structure of the backpack blower according to the present invention.

Fig. 8 is an exploded view of the buckle assembly of the drawing structure of the backpack blower of the present invention.

Fig. 9 is a schematic perspective view of a spring plate of a drawing structure of a backpack blower according to the present invention.

A backpack unit 1; a front cover 11; a rear cover 12; a top cover 13; a back plate 14; a limiting mounting hole 15; a USB interface 16; a battery pack holder assembly 17; a blower unit 2; a blower assembly 21; a fan housing 211; a plug-in portion 212; a snap lock projection 213; a snap pressing part 214; a power supply terminal 215; a bellows 22; a blowpipe assembly 23; a handle assembly 24; a drawing structure 3; a button assembly 31; a button 311; a push rod 312; a push plate 313; a first guide rail 32; an annular limit groove 321; a second guide rail 33; a locking hole 331; a first annular stopper 332; an annular ledge 333; a third guide rail 34; the first rail case 341; a second rail housing 342; a limit groove 343; a snap assembly 35; a first buckle seat 351; one end 3511 of the first buckle seat, a first guide hole 3512; a second snap seat 352; a fastener 353; a thimble 3531; a second ramp 3532; the elastic member 354; a drive rod 355; a limit bump 3551; a first ramp 3552; a socket cover 36; a power supply jack 37; a socket 38; a reed 39; a first end 391; an intermediate connecting portion 392; a second end 393.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

Please refer to fig. 1-9. It should be noted that the drawings provided in the present embodiment are only for illustrating the basic idea of the invention in a schematic manner, and only the components related to the invention are shown in the drawings rather than being drawn according to the number, shape and size of the components in actual implementation, and the form, quantity and proportion of the components in actual implementation may be changed at will, and the layout of the components may be more complicated.

Referring to fig. 1, the present invention provides a backpack blower, which includes a backpack unit 1, a drawing structure 3 and a blower unit 2. The drawing structure 3 is installed in the backpack unit 1, and the blower unit 2 is connected with the backpack unit 1 through the drawing structure 3.

Referring to fig. 1-3, in the present invention, the backpack unit 1 is composed of a front cover 11, a rear cover 12, a top cover 13, a back plate 14 and a battery pack fixing seat assembly 17, wherein the front cover 11, the rear cover 12 and the top cover 13 form a backpack housing of the backpack unit 1. The front cover 11 and the rear cover 12 enclose a first accommodating cavity (not marked) for installing the drawing structure 3, the front cover 11, the rear cover 12 and the top cover 13 jointly enclose a second accommodating cavity (not marked) for installing the battery pack, the second accommodating cavity is located on the upper portion of the first accommodating cavity, and at least one battery pack fixing seat assembly 17 for installing the battery pack is arranged in the second accommodating cavity. Openings which are communicated with the first accommodating cavity are oppositely arranged on two sides of the backpack shell of the backpack unit 1, the opening which is close to the blower unit 2 is used as a limiting installation hole 15 for slidably guiding a third guide rail 34 of the drawing structure 3 which will be described later, and the opening which is far from the blower unit 2 is used as a button installation hole for installing a button 311 of the drawing structure 3 which will be described later.

Fig. 3 shows a case including two battery pack holder assemblies 17, and the two battery pack holder assemblies 17 are disposed on the upper portion of the rear cover 12 in parallel, it can be understood that the number, the disposition position, and the arrangement of the battery pack holder assemblies 17 in the second accommodating cavity can be flexibly adjusted as required.

Referring to fig. 1 and 2, in the present invention, a back plate 14 is fixedly installed at one side of a rear cover 12 far from a front cover 11, and when a user uses the backpack type hair dryer, the back plate 14 can contact the back of the user, so that the comfort level of the user's work can be improved. The top of the back plate 14 is higher than the top cover 13, and a strap hole is further provided on the top of the back plate 14, and a strap (not shown) can be fixed to the back plate 14 through the strap hole, so that a user can carry the backpack unit 1.

Referring to fig. 2, in the present invention, the backpack unit 1 is further provided with a USB interface 16, the USB interface 16 is electrically connected to the battery pack, the USB interface 16 can be disposed at suitable positions of the front cover 11, the rear cover 12 and the top cover 13 of the backpack unit 1, and an operator can charge other electrical appliances, such as a mobile phone, through the USB interface 16. In order to prevent dust or rain water from entering the USB port 16, a sliding sealing plate (not shown) may be slidably disposed on the USB port 16, the sliding sealing plate may be covered on the USB port 16 under the action of the elastic member 354, and when a USB connector is to be inserted into the USB port 16, the sliding sealing plate may be manually pushed to expose the USB port 16.

Referring to fig. 1 and 4, in the present invention, the blower portion includes a blower assembly 21, a bellows 22 (of course, other deformable hoses may be used), a blower assembly 23 and a handle assembly 24, which are axially disposed, and a blowing port of the blower assembly 21 is connected to an air inlet of the blower assembly 23 through the bellows 22.

Referring to fig. 1 and 4, in the present invention, the blower assembly 21 includes a blower housing 211, a driving device accommodated in the blower housing 211, and a plug portion 212 disposed on the blower housing 211 and close to one side of the backpack unit 1, wherein the driving device may include a motor, a fan blade, and other components. The plug part 212 may be a T-shaped guide rail, for example, and the blower part may be inserted into a plug port 38 of a drawing structure 3 to be described later through the plug part 212 and locked by a snap to realize the detachable connection of the blower unit 2 and the backpack unit 1. The buckle includes a buckle locking protrusion 213 and a buckle pressing portion 214, the buckle locking protrusion 213 is disposed on one side of the insertion portion 212 facing the backpack unit 1, and the buckle pressing portion 214 is disposed on a portion of the fan housing 211 convenient for pressing operation, for example, on the top side of the fan housing 211. When the plug part 212 of the blower unit 2 is plugged into the plug port 38 of the pull-out structure 3, the snap locking protrusion 213 protrudes from the surface of the plug part 212 facing the backpack unit 1 to lock and fix the blower unit 2 and the backpack unit 1, and when the blower unit 2 needs to be detached from the backpack unit 1, the snap locking protrusion 213 is retracted into the surface of the plug part 212 facing the backpack unit 1 by pressing the snap pressing part 214, so that the blower unit 2 can be conveniently detached from the backpack unit 1.

Referring to fig. 1 and 4, in the present invention, the handle assembly 24 is fixed at a position of the blowing pipe assembly 23 convenient for operation and holding, and the angle and height of the air pipe assembly can be conveniently adjusted by matching the handle assembly 24 with the bellows 22, so as to clean different areas. The handle assembly 24 may be provided with a control assembly (not shown), the control assembly may be wholly or partially located in the handle assembly 24, the control assembly may be electrically connected to the driving device of the blower assembly 21 through a control line, the control assembly may include, for example, a start/stop key, a speed regulation key, etc., and the control assembly may conveniently control the start/stop of the backpack blower, the adjustment of the blowing speed, etc.

Referring to fig. 5-8, in the present invention, the drawing structure 3 is accommodated in the first accommodating cavity of the backpack shell, and the drawing structure 3 includes a button assembly 31, a first guide rail 32, a second guide rail 33, a third guide rail 34 and a buckle assembly 35. The button assembly 31 comprises a button 311, a push rod 312 and a push plate 313; the button 311 is mounted at one end of the first rail 32 and exposed from a button mounting hole disposed at one side of the backpack housing away from the blower unit 2, one end of the push rod 312 is connected to the button 311, the other end is inserted into the first rail 32 and connected to the push plate 313, and the push rod 312 and the push plate 313 can slide in the first rail 32 to push the driving rod 355 of the buckle assembly 35 to move, which will be described later, to trigger the buckle assembly. For maintenance and disassembly, both ends of the push rod 312 may be, for example, threadably coupled to the push button 311 and push plate 313, respectively. It will be appreciated that in some embodiments, push plate 313 may not be provided, and push rod 312 may be used to directly push actuator rod 355 of buckle assembly 35.

Referring to fig. 5-8, in the present invention, the first guide rail 32 may be a round rectangular tube (or a tubular structure with other suitable shapes), the side wall of the end of the first guide rail 32 close to the button 311 is provided with an annular limiting groove 321, a fastening protrusion matched with the annular limiting groove 321 is disposed in the first accommodating cavity of the backpack shell, and when the pull structure 3 is installed in the first accommodating cavity, the fastening protrusion in the accommodating cavity enters the annular limiting groove 321 to limit the axial displacement of the first guide rail 32.

Referring to fig. 5-8, in the present invention, the second guiding rail 33 may be a rounded rectangular tube (or a tubular structure with other suitable shapes), and the second guiding rail 33 is sleeved on an end of the first guiding rail 32 away from the button 311. A plurality of locking holes 331 are formed on one side of the second rail 33 along an axial direction (sliding direction) and are engaged with a thimble 3531 of a latch assembly 35 to be described later, so that when the thimble 3531 is pushed into the locking holes 331, the first rail 32 and the second rail 33 can be locked to prevent the second rail 33 from sliding along the first rail 32, and when the thimble 3531 is withdrawn from the locking holes 331, the first rail 32 and the second rail 33 are in locking contact, and the second rail 33 can slide on the first rail 32.

Referring to fig. 5 and 6, in the present invention, a sleeve of the third guide rail 34 is disposed and fixed on the second guide rail 33, the other end of the third guide rail 34 extends out of the limit mounting hole 15 disposed on one side of the backpack housing close to the blower unit 2, the third guide rail 34 can slide along the limit mounting hole 15 when the second guide rail 33 slides, so as to adjust the length of the pull-out structure 3, thereby adjusting the distance between the blower unit 2 and the backpack unit 1 of the backpack blower.

Referring to fig. 5 and 6, in the present invention, a first annular limiting portion 332 is disposed in the middle of the second guide rail 33, a second annular limiting portion (not labeled) matched with the first annular limiting portion 332 is disposed on the inner wall of the third guide rail 34, one of the first annular limiting portion 332 and the second annular limiting portion is an annular rib, and the other is an annular groove; an annular convex edge 333 is formed on one end of the second guide rail 33 far away from the button 311 along the circumferential direction, and an annular groove (not labeled) matched with the annular convex edge 333 is arranged on the inner wall of the third guide rail 34. In the embodiment, the first annular limiting portion 332 is at least one annular rib, and the second annular limiting portion is at least one limiting groove, and fig. 5 shows a case including two annular ribs and two annular grooves, when the third rail 34 is sleeved on the second rail 33, the annular ribs and the annular convex edges 333 are inserted into the corresponding limiting grooves, so that the relative movement between the third rail 34 and the second rail 33 can be limited.

Referring to fig. 5 and 6, in the present invention, for the convenience of assembly, the third rail 34 may include a first rail housing 341 and a second rail housing 342 fixed to each other, which are butted and coupled together by a screw.

Referring to fig. 5 and 6, in the present invention, an end of the third guiding rail 34 away from the button 311 is provided with a socket 38, the socket is matched with the socket 212 of the blower assembly 21, the socket 38 can be, for example, a T-shaped groove, and the blower unit 2 can be detachably inserted into the socket 38 of the drawing structure 3 through the socket 212.

Referring to fig. 4-6, in the present invention, a power supply terminal 215 is disposed on the insertion end of the insertion portion 212 of the hair dryer assembly 21, and the power supply terminal 215 is electrically connected to the driving device of the hair dryer assembly 21; the bottom end of the socket 38 is provided with a power supply socket 37 matching the power supply terminal 215, and the power supply socket 37 is electrically connected with a battery pack located in the backpack unit 1; when the plug portion 212 of the blower unit 2 is inserted into the plug port 38 of the drawer structure 3, the power supply terminal 215 is plugged into the power supply jack 37 to be electrically connected, so that the battery pack can supply power to the driving device.

Referring to fig. 4 to 6, in the present invention, in order to protect the power supply socket 37, a socket cover 36 is disposed in the socket 38 at a position adjacent to the power supply socket 37, the socket cover 36 covers the power supply socket 37 when the insertion portion 212 of the hair dryer unit 2 is not inserted into the socket 38 of the drawing structure 3, and the power supply socket 37 retracts into the third guide rail 34 when the insertion portion 212 of the hair dryer unit 2 is inserted into the socket 38 of the drawing structure 3.

Referring to fig. 5-8, in the present invention, the buckle assembly 35 is installed at an end of the first rail 32 far away from the button 311 and is located inside the second rail 33, and the buckle assembly 35 has an unlocking state and a locking state corresponding to the unlocking and locking of the first rail 32 and the second rail 33. The latch assembly 35 includes a latch seat, a latch 353, an actuating lever 355 and an elastic member 354. The buckle seat comprises a first buckle seat 351 and a second buckle seat 352 which are mutually connected, and one end 3511 of the buckle seat can be fixed to one end of the first guide rail 32, which is far away from the button 31, in a threaded connection mode (of course, an interference fit mode or a welding mode can also be adopted); the buckle piece 353 is arranged in the buckle seat, and one side of the buckle piece 353 extends outwards to form an ejector pin 3531 matched with the locking hole 331 of the second guide rail 33; the elastic element 354 is disposed on a side of the buckle seat away from the thimble 3531, and the elastic element 354 may be a spring, for example; one end of the driving lever 355 is disposed near the push rod 312 or contacts the push rod 312, and the other end of the driving lever 355 is inserted into the latch seat through the first guide hole 3512 and is slope-fitted with the latch 353. Specifically, one end of the driving rod 355, which is away from the push rod 312, has a first inclined surface 3552 facing away from the thimble 3531, and one side of the latch 353, which faces the driving rod 355, is provided with a second inclined surface 3532 matched with the first inclined surface 3552; when the button 311 is pressed, the push rod 312 drives the push plate 313 to move towards the latch assembly 35, the push plate 313 pushes the driving rod 355 to move, so as to drive the thimble 3531 of the latch 353 to move downwards to be out of the locking hole 331, at this time, the latch assembly 35 is in an unlocked state, and the second guide rail 33 can slide along the first guide rail 32; when the position is adjusted to a proper position, that is, when the thimble 3531 is aligned with another locking hole 331, the thimble 3531 is reinserted into the locking hole 331 under the action of the elastic member 354, and at this time, the latch assembly 35 is in a locked state again, and the second rail 33 cannot slide along the first rail 32.

Referring to fig. 8, in the present invention, a position-limiting protrusion 3551 is disposed on the driving rod 355 inside the buckle seat, and the position-limiting protrusion 3551 is used to prevent the driving rod 355 from coming off the buckle seat.

Referring to fig. 9, in the present invention, the drawing structure 3 further includes a spring plate 39, a plurality of limiting grooves 343 are disposed on the side wall of the third rail 34 at intervals along the sliding direction, the number of the limiting grooves 343 is the same as the number of the locking holes 331 on the second rail 33, the spring plate 39 is "shaped", and includes a first end portion 391, a middle connecting portion 392 and a second end portion 393 connected in sequence, the first end portion 391 is V-shaped, the first end portion 391 of the spring plate 39 is inserted into one of the limiting grooves 343, the second end portion 393 of the spring plate 39 is fixed to the inner wall of the backpack unit 1, when the buckle assembly 35 is in the locking state, that is, when the thimble 3531 of the buckle 353 is inserted into the locking hole 331 of the second rail 33, the first end portion 391 of the spring plate 39 is also inserted into one of the limiting grooves 343 of the third rail 34, so as to play a certain positioning role. It will be appreciated that in other embodiments, the reed 39 may not be provided.

When the distance between the blower unit 2 and the backpack unit 1 needs to be adjusted, the button 311 is pressed, the push rod 312 drives the push plate 313 to move towards the latch assembly 35, the push plate 313 pushes the driving rod 355 to move, so as to drive the thimble 3531 of the latch 353 to move downward to be out of the locking hole 331, at this time, the latch assembly 35 is in an unlocked state, the second guide rail 33 can slide along the first guide rail 32, when the distance between the blower unit 2 and the backpack unit 1 is adjusted to a proper position, that is, when the thimble 3531 is aligned with another locking hole 331, the thimble 3531 is reinserted into the locking hole 331 under the action of the elastic member 354, at this time, the latch assembly 35 is in a locked state again, the second guide rail 33 cannot slide along the first guide rail 32, and the distance adjustment between the blower unit 2 and the backpack unit 1 is completed.

To sum up, the utility model discloses a pull structure can be applied to the connection of the hair-dryer unit and the knapsack unit of backpack hair-dryer, makes the interval of knapsack unit and hair-dryer unit adjustable to satisfy different size users' demand. The utility model discloses a backpack hair-dryer sets up the USB interface on knapsack unit, makes things convenient for the operator to realize charging other electrical apparatus (for example cell-phone).

In the description herein, numerous specific details are provided, such as examples of components and/or methods, to provide a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that an embodiment of the invention can be practiced without one or more of the specific details, or with other apparatus, systems, assemblies, methods, components, materials, parts, and/or the like. In other instances, well-known structures, materials, or operations are not specifically shown or described in detail to avoid obscuring aspects of embodiments of the invention.

It will also be appreciated that one or more of the elements shown in the figures can also be implemented in a more separated or integrated manner, or even removed for inoperability in some circumstances or provided for usefulness in accordance with a particular application.

Additionally, any reference arrows in the drawings/figures should be considered only as exemplary, and not limiting, unless otherwise expressly specified. Further, as used herein, the term "or" is generally intended to mean "and/or" unless otherwise indicated. Combinations of components or steps will also be considered as being noted where terminology is foreseen as rendering the ability to separate or combine is unclear.

The above description of illustrated embodiments of the invention, including what is described in the abstract of the specification, is not intended to be exhaustive or to limit the invention to the precise forms disclosed herein. While specific embodiments of, and examples for, the invention are described herein for illustrative purposes only, various equivalent modifications are possible within the spirit and scope of the present invention, as those skilled in the relevant art will recognize and appreciate. As noted, these modifications may be made to the present invention in light of the foregoing description of illustrated embodiments of the invention and are to be included within the spirit and scope of the present invention.

The system and method have been described herein in general terms as providing details to facilitate the understanding of the invention. Furthermore, various specific details have been given to provide a general understanding of the embodiments of the invention. One skilled in the relevant art will recognize, however, that an embodiment of the invention can be practiced without one or more of the specific details, or with other apparatus, systems, assemblies, methods, components, materials, parts, and/or the like. In other instances, well-known structures, materials, and/or operations are not specifically shown or described in detail to avoid obscuring aspects of embodiments of the invention.

Thus, although the present invention has been described herein with reference to particular embodiments thereof, freedom of modification, various changes and substitutions are also within the foregoing disclosure, and it should be understood that in some instances some features of the present invention will be employed without a corresponding use of other features without departing from the scope and spirit of the present invention as set forth. Accordingly, many modifications may be made to adapt a particular situation or material to the essential scope and spirit of the present invention. It is intended that the invention not be limited to the particular terms used in following claims and/or to the particular embodiment disclosed as the best mode contemplated for carrying out this invention, but that the invention will include any and all embodiments and equivalents falling within the scope of the appended claims. Accordingly, the scope of the invention is to be determined solely by the appended claims.

Claims

1. A pull construction, comprising:

a first guide rail;

the third guide rail is sleeved and fixed on the second guide rail; and

2. The pull construction according to claim 1 wherein the first track has an annular retaining groove disposed in a side wall thereof adjacent an end of the button.

3. The pull structure of claim 1, wherein the push button assembly further comprises a push plate coupled to an end of the push rod distal from the push button, and wherein the push plate is positioned within the first guide track.

4. The pulling structure according to claim 1, wherein the buckle assembly comprises a buckle seat, a buckle member, a driving rod and an elastic member; one end of the buckle seat is fixed on the first guide rail; the clamping piece is arranged in the clamping seat, and one side of the clamping piece extends outwards to form a thimble; the elastic piece is arranged on one side of the buckle seat far away from the thimble; one end of the driving rod is close to or in contact with the push rod, and the other end of the driving rod is inserted into the buckling seat and matched with the inclined surface of the buckling piece.

5. The pulling structure according to claim 4, wherein the second rail has a plurality of locking holes corresponding to the ejector pins and spaced from each other along the sliding direction on a side thereof.

6. The pull structure of claim 4 wherein the snap mount comprises a first snap mount and a second snap mount that are coupled to one another.

7. The drawer structure according to claim 4, wherein the driving rod is provided with a limit protrusion on an inner portion of the buckle seat, and the limit protrusion is used for preventing the driving rod from falling out of the buckle seat.

8. The pull structure according to claim 1, wherein a first annular limiting portion is disposed in the middle of the second guide rail, a second annular limiting portion matching the first annular limiting portion is disposed on the inner wall of the third guide rail, and one of the first annular limiting portion and the second annular limiting portion is an annular rib and the other is an annular groove.

9. The pull structure according to claim 1, wherein an end of the second rail, which is away from the button, is circumferentially outwardly formed with an annular convex edge, and an inner wall of the third rail is provided with an annular groove matching with the annular convex edge.

10. The pull construction of claim 1 wherein the third rail comprises a first rail shell and a second rail shell secured in abutting relation to one another.

11. The pull construction of claim 1 wherein an end of the third track distal from the button is provided with a socket.

12. A backpack blower, comprising:

a blower unit;

a backpack unit; and

a first guide rail;

the third guide rail is sleeved and fixed on the second guide rail;

13. The backpack blower of claim 12, wherein the blower unit is removably attached to an end of the third rail that extends beyond the backpack unit.

14. The backpack blower of claim 12, wherein the pull structure further comprises a reed; and a plurality of limiting grooves are formed in the side wall of the third guide rail at intervals along the sliding direction, one end of the reed is inserted into one limiting groove, and the other end of the reed is fixed with the inner wall of the backpack unit.

15. A backpack hair dryer as claimed in claim 12, wherein a USB interface is provided on said backpack unit.