CN117698827A

CN117698827A - Handle structure and cart

Info

Publication number: CN117698827A
Application number: CN202311596354.2A
Authority: CN
Inventors: 丘岳; 曾志勤; 刘玉都
Original assignee: Aiwohua Baby Products Zhuhai Co ltd
Current assignee: Aiwohua Baby Products Zhuhai Co ltd
Priority date: 2023-11-27
Filing date: 2023-11-27
Publication date: 2024-03-15

Abstract

The invention discloses a handle structure and discloses a trolley, and relates to the technical field of children products. The handle body comprises an operation part and an execution part, the operation part is provided with a rotatable sleeve, the sleeve is sleeved with a pipe fitting, a plurality of clamping holes are formed in the pipe fitting, and a first clamping groove is formed in the installation position; the telescopic mechanism comprises a first operation assembly and a first action assembly and is used for controlling the telescopic action of the handle body; the turnover mechanism comprises a second operation assembly and a second action assembly and is used for turning over the handle body; the first operation assembly and the second operation assembly on the sleeve can be operated by a user to control the handle structure to stretch and retract and turn over, so that the handle structure provided by the invention is convenient for the user to use and is convenient for the user to fold the cart.

Description

Handle structure and cart

Technical Field

The invention relates to the technical field of children products, in particular to a handle structure and a trolley.

Background

The children's barrow provides great convenience for carrying smaller children to carry out outdoor activities. In order to facilitate carrying and storage of the child stroller, the child stroller can be folded generally.

However, in the prior art, when the child cart is folded, a linkage device at a joint part is needed to be manually operated, and meanwhile, the structures such as a fastening mechanism, a safety mechanism and the like are also detached, so that the child cart can be stretched or folded, and the operation method is very inconvenient for a user holding a child in the hand.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides a handle structure which can be stretched and folded on a cart in a turnover way.

The invention also provides a trolley with the handle structure.

According to a first aspect of the present invention, a handle structure according to an embodiment includes:

the handle comprises a handle body, wherein the handle body comprises an operation part and an execution part, the execution part is arranged on one side or two sides of the operation part, the execution part is arranged on the installation position of the handle structure, the handle structure is rotatably installed on the installation position, the operation part is provided with a rotatable sleeve and a fixed cylinder used for rotating the sleeve, the sleeve is sleeved with a pipe fitting, the fixed cylinder is sleeved on the pipe fitting and propped against the two ends of the sleeve, a plurality of clamping holes are formed in the pipe fitting, and a first clamping groove is formed in the installation position;

The telescopic mechanism is arranged on the handle body and comprises a first operation component and a first action component, the first operation component is connected with the first action component, the first operation component is arranged on the sleeve, the first action components are respectively arranged in the executing part, and the telescopic mechanism is used for controlling the handle body to stretch and retract; and

the turnover mechanism is arranged on the handle body and comprises a second operation assembly and a second action assembly, the second operation assembly is connected with the second action assembly, the second operation assembly is arranged in the sleeve and is positioned at one side of the first operation assembly, the inner side of the sleeve is clamped with the second operation assembly, the second action assemblies are respectively arranged in the execution part, and the turnover mechanism is used for turnover of the handle body;

the first action assembly comprises a first sliding lock tongue, the first lock tongue can be clamped in the clamping hole, the first operation assembly is connected with the first lock tongue, and the first operation assembly drives the first lock tongue to be clamped in the clamping hole;

The second action assembly comprises a movable clamping block, the clamping block can be clamped in the first clamping groove, the second operation assembly is connected with the clamping block, and the sleeve is rotated to drive the second operation assembly to drive the clamping block to be separated from the first clamping groove.

The handle structure provided by the embodiment of the invention has at least the following beneficial effects: the first operation assembly drives the first lock tongue on the first action assembly, the first lock tongue can be clamped in the clamping hole on the pipe fitting, and the handle structure has different lengths according to the different positions of the clamping hole, so that the handle structure has a telescopic function. The clamping block in the initial state can be clamped in the first clamping groove, the second operation assembly drives the clamping block on the second action assembly, and the second operation assembly drives the clamping block to be separated from the first clamping groove so as to be separated from the constraint of the installation position, so that the handle structure can be used for overturning the position of the handle structure at the position of the execution part, which is rotationally connected, and further has the overturning and folding functions. In summary, the user can control the expansion and the folding of the handle structure by operating the first operating component and the second operating component on the sleeve, so that the handle structure provided by the invention is convenient for the user to use and is convenient for the user to fold the cart.

According to some embodiments of the invention, the tube comprises a U-shaped tube, the first operating assembly is disposed in a middle portion of the U-shaped tube, the first operating assembly comprises:

a pressing block which is movably arranged in the sleeve, and part of the pressing block is positioned outside the sleeve; and

the first traction piece is arranged in a channel in the pipe fitting and is positioned on one side of the pressing block, one end of the first traction piece is connected with one side of the pressing block, the other end of the first traction piece is connected with the first action assembly, and the pressing block is driven to enable the first lock tongue on the first action assembly to be pulled through the first traction piece.

According to some embodiments of the invention, the first operating assembly further comprises a first tensioning wheel, the first tensioning wheel is arranged on one side of the pressing block and located in the sleeve, the first traction pieces on two sides are respectively wound on the periphery of the first tensioning wheel, and the first tensioning wheel is used for tensioning the first traction pieces.

According to some embodiments of the invention, the first operating assembly further comprises a support plate located in the channel of the interior of the U-shaped tube, the support plate being provided with through holes at both ends for the passage of the first traction member.

According to some embodiments of the invention, a first mounting hole and a first mounting groove are respectively arranged on two sides of the pressing block, the first mounting hole is used for mounting a first clamping head of the end part of the first traction piece, and the first mounting groove is used for avoiding the traction part of the first traction piece.

According to some embodiments of the invention, the pipe fitting further comprises a connecting pipe and a telescopic pipe, one end of the connecting pipe is connected to two ends of the U-shaped pipe respectively, the other end of the connecting pipe can be inserted into the telescopic pipe respectively, one side of the telescopic pipe is provided with a plurality of clamping holes, and the first action assembly is arranged at the end part of the connecting pipe.

According to some embodiments of the invention, the first action component further comprises:

the first shell is inserted into one end of the connecting pipe, and a first sliding groove is formed in the first shell;

the first driving block is slidably arranged in the first chute, one end of the first driving block is connected with the first operation assembly, and the first operation assembly drives the first driving block to slide in the first chute;

The first elastic piece is arranged in the first sliding groove and positioned in the first driving block, one end of the first elastic piece abuts against the inner wall of the first sliding groove, and the other end of the first elastic piece abuts against the inner wall of the first driving block;

the first lock tongue is slidably arranged in the first shell, one end of the first lock tongue can extend out of the first shell, the other end of the first lock tongue is provided with a second elastic piece, one end of the second elastic piece is propped against the inner wall of the first shell, and the other end of the second elastic piece is propped against the other end of the first lock tongue;

the other end of the first driving block penetrates through the middle of the first lock tongue, a first driving inclined plane is arranged in the middle of the first lock tongue, and a guiding inclined plane matched with the first driving inclined plane is arranged at the position of the first driving block corresponding to the first driving inclined plane.

According to some embodiments of the invention, the first motion assembly further comprises a first stop pin disposed on the first housing and threaded into a first stop kidney-shaped aperture of the first drive block.

According to some embodiments of the invention, the sleeve is rotatably sleeved outside the operation part, and the second operation assembly includes:

the two fixing blocks are respectively arranged on the outer side of the U-shaped pipe, the two fixing blocks are oppositely arranged, the inner sides of the fixing blocks are attached to the outer side of the U-shaped pipe, one of the fixing blocks is provided with a first sliding rail, and the first sliding rail penetrates through the fixing block;

the traction block is slidably arranged in the first sliding rail, a first bulge is arranged at the upper end of the traction block, the first bulge is positioned in a first guide rail at the inner side of the sleeve, and the sleeve is rotated to drive the first bulge to slide along the direction of the first guide rail;

the second traction piece is arranged in a pipeline in the pipe fitting, one end of the second traction piece is connected with one end of the traction block, the other end of the second traction piece is connected with the second action assembly, the sleeve is rotated to drive the traction block to move, and the traction block drives the second traction piece to pull the clamping block of the second action assembly.

According to some embodiments of the present invention, the two traction blocks are provided, and the two traction blocks are both slidably disposed in the first sliding rail, and the first protrusions are both located in the first guide rail inside the sleeve, and the sleeve is rotated to drive the first protrusions to slide along the direction of the first guide rail, and the two traction blocks can slide relatively in the first sliding rail;

the second traction piece is provided with two, the one end of second traction piece is connected respectively the both ends that traction piece set up relatively, the other end of second traction piece is connected respectively both sides second action subassembly, rotatory the sleeve is in order to drive traction piece removes, traction piece drives the second traction piece pulling second action subassembly the joint piece.

According to some embodiments of the invention, one of the traction blocks is provided with a guide hole, the other traction block is provided with a guide column, a seventh elastic piece is sleeved outside the guide column, one end of the seventh elastic piece abuts against the bottom of the guide hole, the other end of the seventh elastic piece abuts against the traction block, and the guide column can be inserted into the guide hole.

According to some embodiments of the invention, the second action assembly further comprises:

the first unlocking member is arranged at one end of the connecting pipe and positioned in the telescopic pipe, and comprises a second lock tongue;

the linkage member is slidably arranged in the telescopic pipe and is positioned at one end of the telescopic pipe away from the connecting pipe, the first unlocking member is connected with the linkage member through the second lock tongue, and the first unlocking member is used for driving the linkage member to move; and

the second unlocking member is arranged at the end part of the telescopic pipe and connected with the linkage member, the second unlocking member comprises the clamping block and a second clamping groove, and the linkage member drives the clamping block to be clamped in the second clamping groove so that the telescopic pipe can be overturned.

According to some embodiments of the invention, the first unlocking member comprises:

the second shell is arranged at one end of the connecting pipe, the second shell is inserted into the telescopic pipe, a second sliding groove is formed in the second shell, and a second driving inclined plane is formed in the inner side of the second shell;

The second driving block is slidably arranged in the second sliding groove, a third elastic piece is arranged between the second driving block and the second housing, the third elastic piece is positioned in the second sliding groove, one end of the third elastic piece abuts against one end of the second driving block, the other end of the third elastic piece abuts against the inner side wall of the second sliding groove, the second driving block is connected with the second operation assembly, and the second operation assembly drives the second driving block to slide in the second sliding groove; and

the spring bolt cover, the spring bolt cover slidable sets up in the second drive piece, the spring bolt cover run through set up in the second drive piece, the spring bolt cover with be provided with fourth elastic component between the second drive piece, fourth elastic component is located in the inside of second drive piece, the one end of fourth elastic component supports the spring bolt cover, the other end of fourth elastic component supports the inside of second drive piece, the outside of spring bolt cover be provided with second drive inclined plane complex leads the inclined plane, the second arch that the one end of spring bolt cover set up can insert and set up in the link member.

According to some embodiments of the invention, the second bolt is slidably disposed in the bolt sleeve, a fifth elastic member is disposed between the second bolt and the bolt sleeve, one end of the fifth elastic member abuts against the inside of the bolt sleeve, the other end of the fifth elastic member abuts against the other end of the second bolt, a part of the second bolt protrudes out of the second housing, and a protruding part of the second bolt can be inserted into the linkage member.

According to some embodiments of the invention, the first unlocking member further comprises a second limit pin disposed on the second driving block and penetrating into a second limit kidney hole of the tongue sleeve.

According to some embodiments of the invention, the first unlocking member further comprises a third limit pin disposed on the second locking bolt and penetrating into a third limit kidney hole of the locking bolt sleeve.

According to some embodiments of the invention, a lock hole is formed at one end of the linkage member, and the second lock tongue can be inserted into the lock hole to be fastened with one end of the linkage member.

According to some embodiments of the invention, the interior of the telescopic tube is provided with a second sliding rail in which the linkage member slides.

According to some embodiments of the invention, the linkage member further comprises a fourth spacing pin disposed on the telescoping tube and threaded into a fourth spacing kidney-shaped aperture of the linkage member.

According to some embodiments of the invention, the second unlocking member further comprises:

the third shell is arranged at one end of the telescopic pipe and positioned at one side of the installation position, the third shell is rotatably arranged at one side of the installation position, the second clamping groove is formed in the inner side of the third shell, and the shape of the second clamping groove is matched with that of the clamping block;

the support frame is clamped on the inner side of the third shell, the clamping block is positioned on one side of the support frame, a sixth elastic piece is arranged between the support frame and the clamping block, one end of the sixth elastic piece abuts against the support frame, and the other end of the sixth elastic piece abuts against the clamping block;

the third traction piece is arranged in the third shell and wound on the supporting frame, one end of the third traction piece is arranged on the linkage member, the other end of the third traction piece is connected with the clamping block, and the linkage member drives the clamping block to be clamped in the second clamping groove through the third traction piece;

Wherein, the part of the clamping block is clamped in the first clamping groove of the mounting position.

According to some embodiments of the invention, a second tensioning wheel is arranged on the supporting frame, the third traction piece is wound on the periphery of the second tensioning wheel, and the second tensioning wheel is used for tensioning the third traction piece.

According to some embodiments of the invention, one of the fixing blocks is provided with an avoidance hole, the pressing block comprises an action part and a traction part, the action part can be arranged on the sleeve in a penetrating manner, the traction part is arranged in the sleeve, one end of the action part, which is mutually abutted with the traction part, is provided with a matched arc surface, the arc surface of the action part can be attached to the outer side surface of the fixing block, and the action part is pressed to drive the traction part to be clamped in the avoidance hole.

According to some embodiments of the invention, the fixed block is provided with a guide block, the inner side of the sleeve is provided with a second guide rail matched with the guide block, the guide block is arranged in the second guide rail, and the sleeve can rotate along the extending direction of the guide block.

According to some embodiments of the invention, one end of the fixed cylinder is provided with a rotating groove, the rotating groove is in a circular ring shape, the rotating groove is arranged on the periphery of the fixed cylinder in a surrounding manner, two ends of the sleeve are provided with rotating blocks, and the rotating blocks are slidably arranged in the rotating groove.

According to a second aspect of the invention, the trolley comprises the handle structure according to any of the embodiments of the first aspect, the trolley being provided with the mounting position, the handle structure being rotatably mounted in the mounting position.

The cart provided by the embodiment of the invention has at least the following beneficial effects: the handle structure is telescopic and can be turned over and folded on the cart, so that the folding and unfolding of a user can be facilitated, and the folding can be carried out.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of a handle structure according to an embodiment of the present invention;

FIG. 2 is a schematic view of another view of the handle structure shown in FIG. 1;

FIG. 3 is a schematic view of the tube of the handle structure shown in FIG. 2;

FIG. 4 is an enlarged schematic view of the mounting location of the implement of the handle mechanism shown in FIG. 1;

fig. 5 is a schematic view of a part of the structure shown in fig. 4 (omitting the third housing);

FIG. 6 is an exploded schematic view of an operating portion of the handle structure shown in FIG. 1;

FIG. 7 is a partial structural cross-sectional view of the handle structure shown in FIG. 1;

FIG. 8 is an enlarged schematic view in semi-section of an actuator portion of the handle structure shown in FIG. 7;

FIG. 9 is a schematic view in semi-section of another state of the handle structure shown in FIG. 1;

FIG. 10 is an enlarged schematic view of the actuator shown in FIG. 9 in semi-section;

FIG. 11 is an exploded schematic view of the installation location shown in FIG. 3;

fig. 12 is an exploded view of the installation site shown in fig. 11 from another perspective.

Reference numerals:

a handle body 1; a mounting position 2; a first clamping groove 2a;

an operation unit 11; an execution unit 12; a pipe fitting 13; a U-shaped pipe 131; a connection pipe 132; a telescopic tube 133; a clamping hole 1331;

a first operating assembly 21; pressing block 211; a first mounting hole 2111; a first mounting groove 2112; an action portion 2113; arc surface 2113a; a traction portion 2114; a first traction member 212; a first tensioning wheel 213; a support plate 214; a first action component 22; a first latch 221; a first driving ramp 2211; a first housing 222; a first slide groove 2221; a first driving block 223; a first spacing kidney-shaped aperture 2231; a first elastic member 224; a second elastic member 225; a first limit pin 226;

a second operating component 31; a sleeve 311; a second guide rail 3111; a rotating block 3113; a fixed cylinder 3112; rotating slot 3114; a fixed block 312; a first slide 3121; avoidance hole 3122; guide block 3123; a traction block 313; a first protrusion 3131; a guide hole 3132; a guide post 3133; a second traction member 314; a second motion component 32; a first unlocking member 321; a second tongue 3211; a second housing 3212; a second runner 3212a; a second driving ramp 3212b; a second driving block 3213; a third elastic member 3214; a tongue sleeve 3215; a second spacing kidney-shaped aperture 3215a; a fourth elastic member 3216; a fifth elastic member 3217; a third limit pin 3219; a linkage member 322; a lock hole 3221; a fourth limit pin 3222; fourth spacing kidney aperture 3223; a second unlocking member 323; a clip 3231; a third housing 3232; a second clamping groove 3232a; a support 3234; a second tensioning wheel 3234a; third traction member 3235; sixth elastic member 3236.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1 to 5, a handle structure according to an embodiment of a first aspect of the present invention includes: handle body 1, telescopic machanism and tilting mechanism.

The handle body 1 comprises an operation part 11 and an execution part 12, wherein the execution part 12 is arranged on one side or two sides of the operation part 11, the execution part 12 is arranged on an installation position 2 of a handle structure, the handle structure is rotatably installed on the installation position 2, the operation part 11 is provided with a rotatable sleeve 311 and a fixed cylinder 3112 used for rotating the sleeve 311, the sleeve 311 is sleeved with a pipe fitting 13, the fixed cylinder 3112 is sleeved on the pipe fitting 13 and props against two ends of the sleeve 311, a plurality of clamping holes 1331 are formed in the pipe fitting 13, and a first clamping groove 2a is formed in the installation position 2; the telescopic mechanism is arranged on the handle body 1 and comprises a first operation assembly 21 and a first action assembly 22, the first operation assembly 21 is connected with the first action assembly 22, the first operation assembly 21 is arranged on the sleeve 311, the first action assemblies 22 are respectively arranged in the executing part 12, and the telescopic mechanism is used for controlling the telescopic operation of the handle body 1; the tilting mechanism sets up on handle body 1, and tilting mechanism includes second operating component 31 and second action subassembly 32, and second operating component 31 is connected with second action subassembly 32, and second operating component 31 sets up in sleeve 311 and is located one side of first operating component 21, and the inboard and the second operating component 31 joint of sleeve 311, second action subassembly 32 set up respectively in executive component 12, and tilting mechanism is used for upset handle body 1.

The first actuating component 22 includes a first sliding bolt 221, the first bolt 221 can be clamped in the clamping hole 1331, the first operating component 21 is connected with the first bolt 221, and the first operating component 21 drives the first bolt 221 to be clamped in the clamping hole 1331; the second actuating component 32 includes a movable clamping block 3231, the clamping block 3231 can be clamped in the first clamping groove 2a, the second actuating component 31 is connected with the clamping block 3231, and the sleeve 311 is rotated to drive the second actuating component 31 to drive the clamping block 3231 to separate from the first clamping groove 2 a.

In some embodiments, the execution units 12 may be disposed on both sides of the operation unit 11, and the first operation unit 21 and the second operation unit 31 are disposed on both sides of the operation unit 11 to control the first operation unit 22 and the second operation unit 32, so that the operation of the execution units 12 on both sides of the operation unit 11 may be controlled to implement simultaneous extension and retraction or folding of the execution units 12. Similarly, in other embodiments, the actuator 12 may be provided on one side of the operating portion 11, and in this case, the critical setting is also provided on the side corresponding to the actuator 12, for example, in some single-pole carts, the expansion and/or folding may be performed by controlling the actuator 12 in the tube 13 of the single-pole cart.

Specifically, the operation portion 11 is provided with a rotating sleeve 311 and a fixed cylinder 3112 for rotating the sleeve 311, and both ends of the sleeve 311 are rotatably provided on the fixed cylinder 3112, so that the first operation unit 21 and the second operation unit 31 provided on the sleeve 311 can control the first operation unit 22 and the second operation unit 32 by operating the sleeve 311 or directly operating themselves. It should be noted that, in some embodiments, the two ends of the sleeve 311 may be directly disposed on the pipe 13, that is, the sleeve 311 is rotatably sleeved on the pipe 13, and the first actuating assembly 22 and the second actuating assembly 32 are driven to perform the telescoping and folding actions by driving the rotation of the sleeve 311 or the components of the first actuating assembly 21 and the second actuating assembly 31, respectively.

More specifically, in the telescopic action of the handle body 1, the first operating component 21 on the operating portion 11 drives the first lock tongue 221 on the first actuating component 22, and the first operating component 21 cooperates with the sleeve 311 to drive the first lock tongue 221 to stretch into the locking hole 1331 on the pipe 13, so that the first lock tongue 221 can be locked into the locking hole 1331 on the pipe 13. When the first lock tongue 221 is retracted into the pipe fitting 13, the first lock tongue 221 is separated from the clamping hole 1331, and the pipe fitting 13 can be retracted; when the first lock tongue 221 extends out of the pipe 13, the first lock tongue 221 can be clamped in the clamping hole 1331 on the pipe 13, so as to fix the length of the pipe 13. Therefore, it can be understood that the pipe fitting 13 is provided with the clamping holes 1331 arranged in a row, and the handle structure has different lengths according to the positions of the clamping holes 1331, so that the handle structure has a telescopic function.

Similarly, in the operation of turning over, folding and unfolding the handle body 1, the second operation component 31 on the operation part 11 drives the clamping block 3231 on the second operation component 32, the second operation component 31 is matched with the sleeve 311 to drive the first clamping groove 2a which is movably arranged on the mounting position 2, and the clamping block 3231 can be clamped in the first clamping groove 2a or can be separated from the clamping constraint of the first clamping groove 2a, so that the purpose of fixing the position of the pipe fitting 13 can be achieved through the constraint of the mounting position 2 or the purpose of turning over the position of the pipe fitting 13 can be achieved through the constraint of the separation mounting position 2, namely, the handle structure can be turned over by the position of the rotary connection of the execution part 12, so that the handle structure has the turning over, folding and folding function, and the handle structure can be turned over and folded through the turning mechanism after the handle structure is shortened through the telescopic mechanism if the handle structure is required.

Therefore, in summary, the user can operate the first operating component 21 and the second operating component 31 on the sleeve 311 with one hand, and can control the expansion and the turning of the handle structure in cooperation with the rotation of the sleeve 311, so that the handle structure provided by the embodiment of the invention is convenient for the user to use and the user to fold the cart.

Referring to fig. 6, in some embodiments of the present invention, specifically, the pipe member 13 includes a U-shaped pipe 131, and the first operating component 21 is disposed at the middle of the U-shaped pipe 131, it can be understood that two actuating units 12 are disposed in the handle structure of the present embodiment and are disposed at two ends of the operating unit 11, so that the first operating component 21 controls the first actuating components 22 on the actuating units 12 at two ends, respectively.

More specifically, the first operating component 21 may include: press block 211 and first traction member 212. The pressing block 211 is movably disposed in the sleeve 311, and a part of the pressing block 211 is located at the outside of the sleeve 311 for pressing by a user; the first traction member 212 is disposed in the channel inside the pipe member 13 and located at two sides of the pressing block 211, one end of the first traction member 212 is connected to one side of the pressing block 211, and the other end of the first traction member 212 is connected to the first actuating assembly 22, when the user presses the pressing block 211 exposed outside the sleeve 311, the pressing block 211 inside the sleeve 311 can be driven to move towards the inner side of the U-shaped pipe 131, and the first traction member 212 can be pulled to move towards the inner side, and finally the first actuating assembly 22 pulled by the other end of the first traction member 212 is pulled, so that the first locking tongue 221 on the first actuating assembly 22 is clamped in the clamping hole 1331. The pulled first lock tongue 221 is separated from the clamping hole 1331 on the pipe fitting 13, so that the pipe fitting 13 can stretch and retract. It should be noted that, the first traction member 212 in this embodiment may be a common steel rope with flexibility, or may be a general rope with flexibility but not elasticity, which is not limited in the present invention. It should be noted that, in order to reset the pressing block 211, an elastic member (not shown in the drawing) for resetting is disposed between the pressing block 211 and the U-shaped tube 131, and one end of the elastic member abuts against the pressing block 211, and the other end abuts against the inner U-shaped tube 131, so it can be understood that when the user releases the pressing block 211, the pressing block 211 is reset under the action of the elastic member, so that the next pressing operation is facilitated.

Referring to fig. 6, further, in some embodiments of the present invention, the first operating assembly 21 may further include a first tensioning wheel 213, the first tensioning wheel 213 being disposed at one side of the pressing block 211 and located in the sleeve 311, and the first traction members 212 at both sides being respectively wound around the circumference sides of the first tensioning wheel 213, the first tensioning wheel 213 being used to tension the first traction members 212. The circumferential side of the first tension pulley 213 may be provided with an inward sink, and the first traction member 212 may be placed in the sink, so that the first traction member 212 may be prevented from sliding out from both ends of the first tension pulley 213 when sliding. It will be appreciated that the first tensioning wheel 213 may tension the first traction member 212 to facilitate pulling of the first motion assembly 22. It should be noted that, the end of the pressing block 211 to which the first traction member 212 is connected, that is, the inner side of the pressing block 211 should be higher than the height of the first tensioning wheel 213, so that the tensioning effect of the first tensioning wheel 213 is better, and meanwhile, the traction stroke of the first traction member 212 is larger and the traction effect is better due to different heights of the first tensioning wheel 213 and the traction end of the first traction member 212.

Referring to fig. 6, further, in some embodiments of the present invention, the first operating assembly 21 further includes a support plate 214, the support plate 214 being disposed in the passage of the inside of the U-shaped tube 131, and both ends of the support plate 214 being provided with through holes for the first traction member 212 to pass through. It will be appreciated that the first traction member 212 enters the channel inside the U-shaped tube 131 through the communication holes formed in the U-shaped tube 131, and passes through the through holes at the two ends of the supporting plate 214 from bottom to top, and then passes through the first actuating components 22 at two sides respectively, while the supporting plate 214 is located in the U-shaped tube 131 and has a height higher than that of the first tensioning wheel 213, so that the supporting plate 214 can well tension the first traction member 212 in cooperation with the first tensioning wheel 213, thereby facilitating the first traction member 212 to pull the first actuating components 22.

Referring to fig. 6, in some embodiments of the present invention, the above-mentioned pressing block 211 may be provided with a first mounting hole 2111 and a first mounting groove 2112 on both sides thereof, respectively, the first mounting hole 2111 being used to mount a first chuck at an end of the first traction member 212, and the first mounting groove 2112 being used to avoid a traction portion 2114 of the first traction member 212. In order to facilitate the rapid assembly of the first operating assembly 21, the first drawing member 212 may include a first chuck and a drawing portion 2114 connected to the first chuck, so that the rapid connection can be achieved by the first chuck being rapidly installed in the first installation hole 2111 while facilitating the disassembly of the first drawing member 212. In addition, first mounting groove 2112 on press block 211 may be used to clear traction portion 2114 of first traction member 212, thereby facilitating traction of traction portion 2114 and preventing press block 211 from abrading traction portion 2114 of first traction member 212.

Referring to fig. 1 to 3 and fig. 7, in some embodiments of the present invention, the pipe 13 further includes a connection pipe 132 and a telescopic pipe 133, one end of the connection pipe 132 is connected to two ends of the U-shaped pipe 131, the other end of the connection pipe 132 is respectively insertable into the telescopic pipe 133, one side of the telescopic pipe 133 is provided with a plurality of clamping holes 1331, and the first actuating assembly 22 is disposed at an end of the connection pipe 132. When the first operating component 21 drives the first lock tongue 221 to retract from the clamping hole 1331 arranged on the telescopic tube 133, the connecting tube 132 can stretch in the telescopic tube 133, and simultaneously drives the first actuating component 22 to shuttle in the telescopic tube 133 until the first lock tongue 221 slides to the next clamping hole 1331, the first lock tongue can be ejected and clamped in the clamping hole 1331, so that the stretching and fixing of the handle body are realized.

Referring to fig. 7 to 10, in some embodiments of the present invention, the first actuating assembly 22 further includes a first housing 222, a first driving block 223, and a first elastic member 224. The first housing 222 is inserted into one end of the connection pipe 132, and a first sliding groove 2221 is formed in the first housing 222; the first driving block 223 is slidably disposed in the first sliding slot 2221, one end of the first driving block 223 is connected with the first operating component 21, and the first operating component 21 drives the first driving block 223 to slide in the first sliding slot 2221; the first elastic member 224 is disposed in the first sliding groove 2221 and located in the first driving block 223, one end of the first elastic member 224 abuts against the inner wall of the first sliding groove 2221, and the other end of the first elastic member 224 abuts against the inner wall of the first driving block 223.

The first lock tongue 221 is slidably disposed in the first housing 222, one end of the first lock tongue 221 may extend out of the first housing 222, the other end of the first lock tongue 221 is provided with a second elastic member 225, one end of the second elastic member 225 abuts against the inner wall of the first housing 222, and the other end of the second elastic member 225 abuts against the other end of the first lock tongue 221; the other end of the first driving block 223 is arranged in the middle of the first lock tongue 221 in a penetrating way, a first driving inclined plane 2211 is arranged in the middle of the first lock tongue 221, and a guiding inclined plane matched with the first driving inclined plane 2211 is arranged at the position of the first driving block 223 corresponding to the first driving inclined plane 2211.

Specifically, the first traction member 212 of the first operating component 21 is connected to the first actuating component 22, and then the first operating component 21 may be connected to the first driving block 223 of the first actuating component 22 through the first traction member 212, so that the first driving block 223 slides along the direction of the slot body of the first sliding slot 2221, and the specific direction is the axial direction of the connecting pipe 132, that is, the traction direction of the first traction member 212. One end of the first driving block 223 is disposed in the middle of the first lock tongue 221, and a first driving inclined plane 2211 is disposed in the middle of the first lock tongue 221, and a guiding inclined plane matching with the first driving inclined plane 2211 is disposed at a position of the first driving block 223 corresponding to the first driving inclined plane 2211, so it can be understood that when the first traction member 212 pulls the first driving block 223 upward to move in the first sliding groove 2221, the guiding inclined plane matching with the first driving inclined plane 2211 is driven to move upward, so as to urge the first driving inclined plane 2211 on the first lock tongue 221 to slide towards the horizontal direction of the inclined plane, and further retract one end of the first lock tongue 221 extending out of the first housing 222 into the first housing 222, and finally disengage the first lock tongue 221 from the clamping hole 1331, thereby enabling the first actuating assembly 22 to slide in the telescopic tube 133.

It should be noted that, since the first elastic member 224 is disposed between the first sliding groove 2221 and the first driving block 223, it is conceivable that when the user operates the first operating assembly 21, the first driving block 223 is driven to move upwards, so as to compress the first elastic member 224, so that the first elastic member 224 stores the elastic potential energy of resetting; meanwhile, a second elastic member 225 is disposed between the first latch 221 and the first housing 222, when the user operates the first operating component 21, the first latch 221 retracts to compress the second elastic member 225, so that the second elastic member 225 stores elastic potential energy of resetting, when the user releases the first operating component 21, the first latch 221 slides to the next clamping hole 1331, the first driving block 223 can rebound downwards under the resetting action of the first elastic member 224, and the first latch 221 extends to the first housing 222 under the resetting action of the second elastic member 225, and can also reset the first driving block 223 and the first latch 221 under the resetting action of the first driving inclined plane 2211 and the matched guiding inclined plane, thereby enabling the first latch 221 to be clamped in the next clamping hole 1331, and simultaneously facilitating the user to control the next expansion of the first operating component 21. While the first driving block 223 is reset, the pressing block 211 may be pulled by the first traction member 212 to be reset.

The first elastic member 224 and the second elastic member 225 may be springs, elastic rubber members, or the like. It should be noted that, in order to enable the pressing block 211 to be quickly reset, an eighth elastic member (not shown in the figure) may be further disposed on one side of the pressing block 211 abutting against the pipe fitting 13, where one end of the eighth elastic member abuts against the inner side of the inner pressing block 211 and the other end abuts against the outer side of the pipe fitting 13, so that when the user releases the pressing block 211, the user can reset through the eighth elastic member.

Further, in some embodiments of the present invention, the first actuating assembly 22 further includes a first limiting pin 226, and the first limiting pin 226 is disposed on the first housing 222 and passes through the first limiting kidney-shaped hole 2231 of the first driving block 223. Because one end of the first driving block 223 is inserted into the middle of the first lock tongue 221, and meanwhile, the extension and retraction of the first lock tongue 221 are realized in a driving manner of an inclined plane, in order to ensure that the first driving block 223 slides in the middle of the first lock tongue 221, the first driving block 223 is prevented from falling off from the first lock tongue 221, a first limiting pin 226 is arranged on the first housing 222, and meanwhile, the first limiting pin 226 is inserted into a first limiting kidney-shaped hole 2231 of the first driving block 223, so that the first driving block 223 is limited in the middle of the first lock tongue 221.

Referring to fig. 6, in some embodiments of the present invention, a sleeve 311 is rotatably sleeved outside the operation part 11, and the second operation assembly 31 includes two fixing blocks 312, a traction block 313, and a second traction member 314.

The two fixing blocks 312 are respectively arranged at the outer side of the U-shaped pipe 131, the two fixing blocks 312 are oppositely arranged, the inner sides of the fixing blocks 312 are attached to the outer side of the U-shaped pipe 131, one fixing block 312 is provided with a first sliding rail 3121, and the first sliding rail 3121 penetrates through the fixing block 312; the traction block 313 is slidably arranged in the first sliding rail 3121, the upper end of the traction block 313 is provided with a first protrusion 3131, the first protrusion 3131 is positioned in a first guide rail (not shown in the figure) on the inner side of the sleeve 311, and the sleeve 311 is rotated to drive the first protrusion 3131 to slide along the direction of the first guide rail; the second traction piece 314 is arranged in the pipeline inside the pipe fitting 13, one end of the second traction piece 314 is connected with one end of the traction block 313, the other end of the second traction piece 314 is connected with the second action assembly 32, the sleeve 311 is rotated to drive the traction block 313 to move, and the traction block 313 drives the second traction piece 314 to pull the clamping block 3231 of the second action assembly 32.

As is clear from the foregoing embodiments, the actuator 12 is provided on one side or both sides of the operation unit 11, so that the traction block 313 may be provided with one or two blocks, respectively. In this embodiment, taking the example that one execution part 12 is disposed on one side of the operation part 11, the second operation assembly 31 will be further described:

In order to facilitate the sliding of the traction block 313 to drive the second traction member 314, fixing blocks 312 are disposed on the upper and lower sides of the U-shaped tube 131, and a first sliding rail 3121 for sliding the traction block 313 is disposed on the fixing blocks 312, and the direction of the first sliding rail 3121 is the traction direction of the second traction member 314. In the present embodiment, only one traction block 313 slides in the first sliding rail 3121, so that the first protrusion 3131 of the upper end of the traction block 313 is located in the first guide rail of the inside of the sleeve 311, and the movable form of the sleeve 311 takes the central axis of the U-shaped pipe 131 as the rotation center, it is conceivable that the shape of the first guide rail is a spiral shape. Therefore, when the sleeve 311 rotates, the first protrusion 3131 at the upper end of the traction block 313 can slide in the first guide rail, but the traction block 313 is limited in the first sliding groove 2221, so that the traction block 313 slides along the direction of the first sliding groove 2221, and further drives the second traction member 314 to draw the second actuating assembly 32.

In other embodiments of the present invention, the actuator 12 is provided on both sides of the operating portion 11, so that two traction blocks 313 may be provided correspondingly. In this embodiment, the two traction blocks 313 are provided, the two traction blocks 313 are both slidably disposed in the first sliding rail 3121, the first protrusions 3131 are both located in the first guiding rail inside the sleeve 311, the sleeve 311 is rotated to drive the first protrusions 3131 to slide along the direction of the first guiding rail, and the two traction blocks 313 can slide relatively in the first sliding rail 3121; correspondingly, two second traction members 314 are provided, one end of each second traction member 314 is respectively connected with two opposite ends of the traction block 313, the other end of each second traction member 314 is respectively connected with the second action assemblies 32 on two sides, the sleeve 311 is rotated to drive the traction block 313 to move, and the traction block 313 drives the second traction member 314 to pull the clamping block 3231 of the second action assembly 32.

As can be seen from the above embodiment in which only one traction block 313 is provided, when two traction blocks 313 are provided, the first guide rail inside the sleeve 311 may be provided with two screw tracks with opposite screw directions, or may be guide inclined planes with opposite screw directions. It will be appreciated that when the sleeve 311 rotates, the first guide rail of the two screw tracks with opposite screw directions is driven to rotate, and the first protrusion 3131 is driven to slide in the first guide rail, so that the two traction blocks 313 are driven to move relatively. The traction blocks 313 sliding in opposite directions can drive the second motion assembly 32 in the two-side executing part 12 to draw.

Further, in some embodiments of the present invention, one of the traction blocks 313 is provided with a guide hole 3132, the other traction block 313 is provided with a guide post 3133, a seventh elastic member (not shown in the drawings) is sleeved outside the guide post 3133, one end of the seventh elastic member abuts against the bottom of the guide hole 3132, the other end of the seventh elastic member abuts against the traction block 313, and the guide post 3133 may be inserted into the guide hole 3132. When the two traction blocks 313 relatively move, one traction block 313 provided with the guide post 3133 drives the guide post 3133 to be inserted into the other traction block 313 arranged in the guide hole 3132, so that the two traction blocks 313 can be prevented from overturning to be unfavorable for the cooperation transmission of the first protrusion 3131 and the first guide rail, and meanwhile, the elastic potential energy stored in a compressed mode can be reset through the seventh elastic piece, and then the elastic potential energy acts on the sleeve 311 to enable the sleeve 311 to be reset in a self-rotating mode, so that the next rotating turnover is facilitated.

Referring to fig. 9 to 12, in some embodiments of the present invention, the second actuating assembly 32 further includes a first unlocking member 321, a linkage member 322, and a second unlocking member 323. The first unlocking member 321 is disposed at one end of the connection tube 132 and is located in the telescopic tube 133, and the first unlocking member 321 includes a second locking tongue 3211; the linkage member 322 is slidably disposed in the telescopic tube 133 and located at an end of the telescopic tube 133 away from the connecting tube 132, the first unlocking member 321 is connected with the linkage member 322 through a second lock tongue 3211, and the first unlocking member 321 is used for driving the linkage member 322 to move; the second unlocking member 323 is disposed at an end portion of the telescopic tube 133, the second unlocking member 323 is connected with the linkage member 322, the second unlocking member 323 includes a clamping block 3231 and a second clamping groove 3232a, and the linkage member 322 drives the clamping block 3231 to be clamped in the second clamping groove 3232a so that the telescopic tube 133 can be turned over.

Specifically, when the user controls the first operating assembly 21, the connection tube 132 can slide in the telescopic tube 133, so the first unlocking member 321 provided at the end of the connection tube 132 can slide in the telescopic tube 133. When the handle structure is required to be contracted, the connecting pipe 132 slides towards the linkage member 322 in the telescopic passage until the second lock tongue 3211 on the first unlocking member 321 is buckled on the linkage member 322; while the second unlocking member 323 is disposed at the end of the telescopic tube 133, the second unlocking member 323 is connected with the linkage member 322, so it is conceivable that the second operating assembly 31 drives the second traction piece 314 to pull the first unlocking member 321, and the first unlocking member 321 can be fastened to the linkage member 322 through the second lock tongue 3211 and drive the second unlocking member 323 connected with the linkage member 322 through fastening the linkage member 322. The second unlocking member 323 comprises a clamping block 3231 and a second clamping groove 3232a, the first unlocking member 321 slides towards the direction away from the end of the connecting tube 132 away from the installation position 2 under the traction of the second traction piece 314, so as to drive the linkage member 322 to move away from the installation position 2, and the linkage member 322 can drive the second unlocking member 323, the second unlocking member 323 can drive the clamping block 3231 to separate from the first clamping groove 2a, and the clamping block 3231 is clamped in the second clamping groove 3232a so that the clamping block 3231 is separated from the constraint of the first clamping groove 2a of the installation position 2 and is accommodated in the second clamping groove 3232a at one end of the telescopic tube 133, and finally the telescopic tube 133 can separate from the constraint of the installation position 2 to realize turnover.

Referring to fig. 7 to 10, in some embodiments of the present invention, specifically, the first unlocking member 321 includes: a second housing 3212, a second driving block 3213 and a tongue sleeve 3215. The second housing 3212 is disposed at one end of the connection pipe 132, the second housing 3212 is inserted into the telescopic pipe 133, a second sliding slot 3212a is disposed inside the second housing 3212, and a second driving inclined plane 3212b is disposed inside the second housing 3212; the second driving block 3213 is slidably arranged in the second sliding groove 3212a, a third elastic piece 3214 is arranged between the second driving block 3213 and the second housing 3212, the third elastic piece 3214 is positioned in the second sliding groove 3212a, one end of the third elastic piece 3214 abuts against one end of the second driving block 3213, the other end of the third elastic piece 3214 abuts against the inner side wall of the second sliding groove 3212a, the second driving block 3213 is connected with the second operating assembly 31, and the second operating assembly 31 drives the second driving block 3213 to slide in the second sliding groove 3212 a; the bolt sleeve 3215 is slidably arranged in the second driving block 3213, the bolt sleeve 3215 penetrates through the second driving block 3213, a fourth elastic piece 3216 is arranged between the bolt sleeve 3215 and the second driving block 3213, the fourth elastic piece 3216 is positioned in the second driving block 3213, one end of the fourth elastic piece 3216 abuts against the bolt sleeve 3215, the other end of the fourth elastic piece 3216 abuts against the inside of the second driving block 3213, a guide inclined surface matched with the second driving inclined surface 3212b is arranged outside the bolt sleeve 3215, and a second protrusion arranged at one end of the bolt sleeve 3215 can be inserted into the linkage member 322.

Specifically, the second driving block 3213 is connected to the second operating assembly 31, that is, one end of the second traction member 314 in the second operating assembly 31 is connected to the second driving block 3213, so that the second traction member 314 can pull the second driving block 3213 to slide up and down in the second sliding groove 3212a in the second housing 3212, and the specific direction is the axial direction of the connecting pipe 132, that is, the traction direction of the second traction member 314. And a lock sleeve 3215 is provided in the second driving block 3213, so that the second driving block can slide up and down with the lock sleeve 3215. It should be noted that a second driving inclined surface 3212b is provided on the inner side of the second housing 3212, and a guiding inclined surface matched with the second driving inclined surface 3212b is provided on the outer side of the locking bolt sleeve 3215 at a corresponding position, and the second driving inclined surface 3212b and the guiding inclined surface may be matched and abutted. When the second driving block 3213 drives the lock tongue sleeve 3215 to move upwards, the second driving inclined plane 3212b pushes the lock tongue sleeve 3215 out of the second housing, so as to push the second lock tongue 3211 out of the second housing 3212, thereby facilitating the locking of the second lock tongue 3211 on the linkage member 322. It should be noted that, in some embodiments, a protrusion is provided on the outer side of the latch sleeve 3215 and may serve as a second latch 3211 to be snapped onto the linkage member 322, so as to implement the snap-fit.

It should be further noted that, a third elastic member 3214 is disposed between the second driving block 3213 and the second housing 3212, the third elastic member 3214 is located in the second sliding chute 3212a, one end of the third elastic member 3214 abuts against one end of the second driving block 3213, and the other end of the third elastic member 3214 abuts against an inner side wall of the second sliding chute 3212a, so when the second driving block 3213 slides upwards, the third elastic member 3214 can be compressed, so that the third elastic member 3214 stores elastic potential energy of resetting; meanwhile, a fourth elastic piece 3216 is arranged between the lock tongue sleeve 3215 and the second driving block 3213, the fourth elastic piece 3216 is located in the second driving block 3213, one end of the fourth elastic piece 3216 abuts against the lock tongue sleeve 3215, the other end of the fourth elastic piece 3216 abuts against the inside of the second driving block 3213, when the second driving block 3213 slides upwards, the lock tongue sleeve 3215 is pushed out of the limit through a second driving inclined plane 3212b, and meanwhile, the lock tongue sleeve 3215 compresses the fourth elastic piece 3216, so that the fourth elastic piece 3216 stores reset elastic potential energy. So when the user releases the second operating component 31, the third elastic piece 3214 and the fourth elastic piece 3216 can rebound, so that the second driving block 3213 slides downwards, and the bolt sleeve 3215 slides towards the inner side of the second housing 3212 under the driving of the fourth elastic piece 3216, i.e. the second bolt 3211 retracts into the second housing 3212, thereby disconnecting the linkage member 322.

Further, referring to fig. 8, in other embodiments of the present invention, the second lock tongue 3211 is slidably disposed in the lock tongue sleeve 3215, and a fifth elastic member 3217 may be disposed between the second lock tongue 3211 and the lock tongue sleeve 3215, one end of the fifth elastic member 3217 abuts against the inside of the lock tongue sleeve 3215, the other end of the fifth elastic member 3217 abuts against the other end of the second lock tongue 3211, a portion of the second lock tongue 3211 protrudes outside the second housing 3212, and a protruding portion of the second lock tongue 3211 may be inserted into the linkage member 322. The fifth elastic piece 3217 may push the second lock tongue 3211 out of the lock tongue sleeve 3215, so as to ensure that the second lock tongue 3211 may be fastened on the linkage member 322.

Note that, the third elastic member 3214, the fourth elastic member 3216, and the fifth elastic member 3217 may be springs or elastic rubber members. In accordance with the first elastic member 224 and the second elastic member 225, the present embodiment is not particularly limited.

Referring to fig. 8, in some embodiments of the present invention, the first unlocking member 321 further includes a second limiting pin disposed on the second driving block 3213 and penetrating into the second limiting kidney-shaped hole 3215a of the locking bolt sleeve 3215. The first unlocking member 321 further comprises a third limiting pin 3219, and the third limiting pin 3219 is disposed on the second lock tongue 3211 and is disposed in a third limiting kidney-shaped hole of the lock tongue sleeve 3215 in a penetrating manner. In a similar manner to the principle of the first limiting pin 226 and the first limiting kidney-shaped hole 2231, the second limiting pin is disposed on the second driving block 3213 and penetrates through the second limiting kidney-shaped hole 3215a of the lock bolt sleeve 3215 to prevent the lock bolt sleeve 3215 from being separated from the second driving block 3213, and the third limiting pin 3219 is disposed on the second lock bolt 3211 and penetrates through the third limiting kidney-shaped hole of the lock bolt sleeve 3215 to prevent the second lock bolt 3211 from being separated from the lock bolt sleeve 3215.

Referring to fig. 9 to 10, in some embodiments of the present invention, further, one end of the linkage member 322 is provided with a locking hole 3221, and the second locking tongue 3211 may be inserted into the locking hole 3221 to be fastened to one end of the linkage member 322. The second lock tongue 3211 is fastened to the lock hole 3221 of the linkage member 322, so that the second traction piece 314 can drive the linkage member 322 to slide in the telescopic tube 133 through the first unlocking member 321, so it can be understood that a second sliding rail is provided inside the telescopic tube 133, the linkage member 322 slides in the second sliding rail, and the second sliding rail can prevent the linkage member 322 from rotating in the telescopic tube 133 to be unfavorable for being fastened to the second lock tongue 3211 at a fixed position in the first unlocking member 321.

Still further, in some embodiments of the present invention, the linkage member 322 further includes a fourth stop pin 3222, the fourth stop pin 3222 being disposed on the telescoping tube 133 and disposed through the fourth stop kidney aperture 3223 of the linkage member 322. The fourth limit pin 3222 may limit the link member 322 near one end of the telescopic tube 133, and may ensure connection of the link member 322 and the second unlocking member 323.

Referring to fig. 10 to 12, in some embodiments of the present invention, the second unlocking member 323 further includes: third housing 3232, support bracket 3234, and third traction element 3235. The third casing 3232 is arranged at one end of the telescopic tube 133 and is positioned at one side of the installation position 2, the third casing 3232 is rotatably arranged at one side of the installation position 2, a second clamping groove 3232a is arranged at the inner side of the third casing 3232, and the shape of the second clamping groove 3232a is matched with that of the clamping block 3231; the support frame 3234 is clamped on the inner side of the third shell 3232, the clamping block 3231 is positioned on one side of the support frame 3234, a sixth elastic piece 3236 is arranged between the support frame 3234 and the clamping block 3231, one end of the sixth elastic piece 3236 abuts against the support frame 3234, and the other end of the sixth elastic piece 3236 abuts against the clamping block 3231; the third traction piece 3235 is arranged in the third shell 3232 and wound on the support frame 3234, one end of the third traction piece 3235 is arranged on the linkage member 322, the other end of the third traction piece 3235 is connected with the clamping block 3231, and the linkage member 322 drives the clamping block 3231 to be clamped in the second clamping groove 3232a through the third traction piece 3235; wherein, a part of the clamping block 3231 is clamped in the first clamping groove 2a of the mounting position 2.

Specifically, the third housing 3232 is disposed at one end of the telescopic tube 133 and located at one side of the installation position 2, and the third housing 3232 is rotatably disposed at one side of the installation position 2, so that the telescopic tube 133 can rotate at the installation position 2 following the third housing 3232, thereby realizing folding of the handle structure. Note that, the second clamping groove 3232a is provided inside the third housing 3232, and the shape of the second clamping groove 3232a matches the shape of the clamping block 3231, so the clamping block 3231 may be provided in the second clamping groove 3232a inside the third housing 3232, and note that, a portion of the clamping block 3231 is clamped in the first clamping groove 2a of the mounting position 2. It can be understood that, when the handle structure is in a locked state, a portion of the locking block 3231 is locked in the first locking groove 2a on the mounting position 2, and another portion of the locking block 3231 is locked in the second locking groove 3232a, so that the locking block 3231 simultaneously locks the mounting position 2 and the third housing 3232, thereby fixing the third housing 3232, that is, fixing the handle structure. When the second actuating assembly 32 is driven by the second operating assembly 31, the clamping block 3231 can be separated from the first clamping groove of the mounting position 2, so that the clamping block 3231 is completely clamped in the second clamping groove 3232a of the third housing 3232, namely, the clamping connection of the clamping block 3231 is lost between the third housing 3232 and the mounting position 2, and the third housing 3232 and the mounting position 2 can be rotatably connected, so that the handle structure can be folded in a turnover manner.

More specifically, to drive the sliding of the clamping block 3231 to move between the first clamping groove 2a and the second clamping groove 3232a, the third traction member 3235 can be pulled by the linkage member 322 to drive the clamping block 3231 to move. When the second traction piece 314 in the second operation assembly 31 is pulled to drive the first unlocking member 321 in the second action assembly 32 to move, the second lock tongue 3211 drives the linkage member 322 to move, and finally the linkage member 322 pulls the clamping block 3231 through the third traction piece 3235, so that the position of the clamping block 3231 is changed.

It should be noted that, a sixth elastic member 3236 is disposed between the support frame 3234 and the clamping block 3231, one end of the sixth elastic member 3236 abuts against the support frame 3234, and the other end of the sixth elastic member 3236 abuts against the clamping block 3231, so it can be understood that when the second operation assembly 31 is driven by the sleeve 311 to control the movement of the clamping block 3231 of the second operation assembly 32, the clamping block 3231 is lifted up to compress the sixth elastic member 3236 between the support frame 3234 and the clamping block 3231, so that the sixth elastic member 3236 stores elastic potential energy for resetting the clamping block 3231, so that when the second operation assembly 31 is released, the clamping block 3231 loses the external force, the sixth elastic member 3236 ejects the clamping block 3231 from the second clamping groove 3232a in the third housing 3232 under the elastic potential energy, so that a portion of the clamping block 3231 is clamped back into the first clamping groove 2a of the mounting position 2, and the handle structure is locked.

It should be further noted that, the supporting frame 3234 disposed between the clamping block 3231 and the inner side of the third housing 3232 can support the third traction member 3235, so that the traction direction of the third traction member 3235 is changed, and the clamping block 3231 can be lifted up to disengage the clamping block 3231 from the first clamping groove 2a of the clamping installation position 2; in addition, the support frame 3234 can also abut against the sixth elastic member 3236, so that the clamping block 3231 can be conveniently reset to be clamped with the first clamping groove 2a through the sixth elastic member 3236.

Further, in some embodiments of the present invention, a second tensioning wheel 3234a is provided on the support frame 3234, and the third traction element 3235 is wound around a circumferential side of the second tensioning wheel 3234a, and the second tensioning wheel 3234a is used for tensioning the third traction element 3235. The second tensioning wheel 3234a is consistent with the first tensioning wheel 213 in principle, and facilitates the winding of the traction portion 2114 of the traction member and the sliding of the traction portion 2114.

Referring to fig. 6, in some embodiments of the present invention, one of the fixing blocks 312 is further provided with a relief hole 3122, that is, the fixing block 312 located at one side of the first operation assembly 21 is provided with the relief hole 3122 for accommodating the pressing block 211, and the pressing block 211 includes an acting portion 2113 and a traction portion 2114, wherein the acting portion 2113 may be penetratingly provided on the sleeve 311, the acting portion 2113 is used for pressing by a user, and the traction portion 2114 is provided in the sleeve 311, and one end of the acting portion 2113 abutting against the traction portion 2114 is provided with a matched circular arc surface 2113a, so that the acting portion 2113 and the traction portion 2114 may be relatively slidably connected through the circular arc surface 2113 a; furthermore, the arc surface 2113a of the acting portion 2113 may be attached to the outer side surface of the fixed block 312, the acting portion 2113 is pressed to drive the traction portion 2114 to be clamped in the avoiding hole 3122, so it can be understood that when the user presses the acting portion 2113 of the pressing block 211 toward the inner side of the pipe fitting 13, the acting portion 2113 pushes the traction portion 2114 toward the inner side, and after the pushing is in place, the arc surface 2113a on the acting portion 2113 may be attached to the arc surface 2113a on the outer side of the fixed block 312, so the acting portion 2113 and the fixed block 312 may slide relatively, and the traction portion 2114 may be fully accommodated in the avoiding hole 3122 of the fixed block 312, so it can be understood that when the user presses the pressing block 211, the expansion and contraction of the pipe fitting 13 of the handle body 1 may be achieved, and at the same time, since the arc surface 2113a on the acting portion 2113 is attached to the arc surface 3a on the outer side of the fixed block 312 at this time, the acting portion 2113 and the fixed block 312 may slide relatively, and the sleeve 311 may rotate about the center of the sleeve 311, so as to drive the second rotary sleeve body 2113 to roll around the central body 32, thereby realizing the rolling movement of the pipe fitting element 32.

That is, when the user stores the folding handle structure, the pressing block 211 is pressed in place, so that the sleeve 311 can be rotated after the pipe 13 is contracted, and the second operation assembly 31 is controlled by the sleeve 311 to control the second operation assembly 32 to realize the overturning and folding of the handle structure.

Further, in some embodiments of the present invention, in order to prevent the rotational position of the sleeve 311 from being shifted in the axial direction, a guide block 3123 may be provided on the fixed block 312, a second guide rail 3111 matched with the guide block 3123 is provided at the inner side of the sleeve 311, the guide block 3123 is provided in the second guide rail 3111, and the sleeve 311 is rotatable along the extending direction of the guide block 3123. When the sleeve 311 rotates, the axial deviation of the rotational position of the sleeve 311 can be prevented by the guiding of the second guide rail 3111 and the engagement of the guide block 3123.

Referring to fig. 6, in some embodiments of the present invention, one end of a fixed cylinder 3112 is provided with a rotating groove 3114, the rotating groove 3114 is provided in a circular ring, the rotating groove 3114 is provided around the circumference of the fixed cylinder 3112, both ends of a sleeve 311 are provided with rotating blocks 3113, and the rotating blocks 3113 are slidably provided in the rotating groove 3114. When the sleeve 311 rotates, the rotating block 3113 rotates in the rotating groove 3114, so it can be understood that the rotating groove 3114 can limit the rotating angle of the sleeve 311, preventing the sleeve 311 from being excessively pulled against the pulling block 313 to damage the second pulling member 314.

According to a second aspect of the invention, the trolley comprises a handle structure according to any of the embodiments of the first aspect, the trolley being provided with a mounting location 2, the handle structure being rotatably mounted in the mounting location 2. The handle structure is telescopic and can be turned over and folded on the cart, so that the folding and unfolding of a user can be facilitated, and the folding can be carried out.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present invention.

Claims

1. A handle structure, comprising:

the novel handle comprises a handle body (1), wherein the handle body (1) comprises an operation part (11) and an execution part (12), the execution part (12) is arranged on one side or two sides of the operation part (11), the execution part (12) is arranged on an installation position (2) of a handle structure, the handle structure is rotatably arranged on the installation position (2), the operation part (11) is provided with a rotatable sleeve (311) and a fixed cylinder (3112) for rotating the sleeve (311), the sleeve (311) is sleeved with a pipe fitting (13), the fixed cylinder (3112) is sleeved on the pipe fitting (13) and propped against two ends of the sleeve (311), a plurality of clamping holes (1331) are formed in the pipe fitting (13), and a first clamping groove (2 a) is formed in the installation position (2).

The telescopic mechanism is arranged on the handle body (1) and comprises a first operation component (21) and a first action component (22), the first operation component (21) is connected with the first action component (22), the first operation component (21) is arranged on the sleeve (311), the first action components (22) are respectively arranged in the executing part (12), and the telescopic mechanism is used for controlling the telescopic action of the handle body (1); and

the turnover mechanism is arranged on the handle body (1), the turnover mechanism comprises a second operation assembly (31) and a second action assembly (32), the second operation assembly (31) is connected with the second action assembly (32), the second operation assembly (31) is arranged in the sleeve (311) and is positioned at one side of the first operation assembly (21), the inner side of the sleeve (311) is clamped with the second operation assembly (31), the second action assemblies (32) are respectively arranged in the execution part (12), and the turnover mechanism is used for turnover the handle body (1);

the first action assembly (22) comprises a first sliding lock tongue (221), the first lock tongue (221) can be clamped in the clamping hole (1331), the first operation assembly (21) is connected with the first lock tongue (221), and the first operation assembly (21) drives the first lock tongue (221) to be clamped in the clamping hole (1331);

The second action assembly (32) comprises a movable clamping block (3231), the clamping block (3231) can be clamped in the first clamping groove (2 a), the second operation assembly (31) is connected with the clamping block (3231), and the sleeve (311) is rotated to drive the second operation assembly (31) to drive the clamping block (3231) to be separated from the first clamping groove (2 a).

2. Handle structure according to claim 1, characterized in that said tube (13) comprises a U-shaped tube (131), said first operating assembly (21) being arranged in the middle of said U-shaped tube (131), said first operating assembly (21) comprising:

a pressing block (211), wherein the pressing block (211) is movably arranged in the sleeve (311), and part of the pressing block (211) is positioned outside the sleeve (311); and

the first traction piece (212), first traction piece (212) set up in the passageway of pipe fitting (13) inside and be located one side of pressing block (211), one end of first traction piece (212) is connected one side of pressing block (211), the other end of first traction piece (212) is connected first action subassembly (22), drive pressing block (211) makes through first traction piece (212) pulling first spring bolt (221) on first action subassembly (22).

3. Handle structure according to claim 2, characterized in that the first operating assembly (21) further comprises a first tensioning wheel (213), the first tensioning wheel (213) being arranged on one side of the press block (211) and being located in the sleeve (311), the first traction members (212) on both sides being wound around the circumference of the first tensioning wheel (213), respectively, the first tensioning wheel (213) being used for tensioning the first traction members (212).

4. Handle structure according to claim 2, characterized in that the first operating assembly (21) further comprises a support plate (214), the support plate (214) being located in a channel of the interior of the U-shaped tube (131), the support plate (214) being provided at both ends with through holes for the passage of the first traction member (212).

5. The handle structure according to claim 2, wherein a first mounting hole (2111) and a first mounting groove (2112) are respectively provided on both sides of the pressing block (211), the first mounting hole (2111) is used for mounting a first chuck at an end portion of the first traction member (212), and the first mounting groove (2112) is used for avoiding a traction portion (2114) of the first traction member (212).

6. The handle structure according to claim 2, wherein the pipe fitting (13) further comprises a connecting pipe (132) and a telescopic pipe (133), one end of the connecting pipe (132) is respectively connected to two ends of the U-shaped pipe (131), the other end of the connecting pipe (132) is respectively insertable into the telescopic pipe (133), one side of the telescopic pipe (133) is provided with a plurality of clamping holes (1331), and the first actuating assembly (22) is disposed at an end of the connecting pipe (132).

7. The handle structure according to claim 6, wherein the first action assembly (22) further comprises:

a first housing (222), wherein the first housing (222) is inserted into one end of the connecting pipe (132), and a first sliding groove (2221) is formed in the first housing (222);

a first driving block (223), wherein the first driving block (223) is slidably arranged in the first sliding groove (2221), one end of the first driving block (223) is connected with the first operation component (21), and the first operation component (21) drives the first driving block (223) to slide in the first sliding groove (2221);

a first elastic member (224), wherein the first elastic member (224) is arranged in the first sliding groove (2221) and is positioned in the first driving block (223), one end of the first elastic member (224) abuts against the inner wall of the first sliding groove (2221), and the other end of the first elastic member (224) abuts against the inner wall of the first driving block (223);

the first lock tongue (221) is slidably arranged in the first shell (222), one end of the first lock tongue (221) can extend out of the first shell (222), a second elastic piece (225) is arranged at the other end of the first lock tongue (221), one end of the second elastic piece (225) is propped against the inner wall of the first shell (222), and the other end of the second elastic piece (225) is propped against the other end of the first lock tongue (221);

The other end of the first driving block (223) is arranged in the middle of the first lock tongue (221) in a penetrating mode, a first driving inclined plane (2211) is arranged in the middle of the first lock tongue (221), and a guiding inclined plane matched with the first driving inclined plane (2211) is arranged at the position, corresponding to the first driving inclined plane (2211), of the first driving block (223).

8. The handle structure according to claim 7, characterized in that the first actuating assembly (22) further comprises a first limit pin (226), said first limit pin (226) being provided on the first housing (222) and penetrating in a first limit kidney-shaped hole (2231) of the first driving block (223).

9. Handle structure according to claim 7, characterized in that said sleeve (311) is rotatably housed outside said operating portion (11), said second operating assembly (31) comprising:

the two fixing blocks (312), the two fixing blocks (312) are respectively arranged on the outer sides of the U-shaped pipes (131), the two fixing blocks (312) are oppositely arranged, the inner sides of the fixing blocks (312) are attached to the outer sides of the U-shaped pipes (131), one fixing block (312) is provided with a first sliding rail (3121), and the first sliding rail (3121) penetrates through the fixing blocks (312);

The traction block (313) is slidably arranged in the first sliding rail (3121), a first protrusion (3131) is arranged at the upper end of the traction block (313), the first protrusion (3131) is positioned in a first guide rail on the inner side of the sleeve (311), and the sleeve (311) is rotated to drive the first protrusion (3131) to slide along the direction of the first guide rail;

the second traction piece (314), second traction piece (314) sets up in the pipeline of the inside of pipe fitting (13), one end of second traction piece (314) is connected one end of traction piece (313), the other end of second traction piece (314) is connected second action subassembly (32), rotate sleeve (311) is in order to drive traction piece (313) remove, traction piece (313) drive second traction piece (314) pulling second action subassembly (32) joint piece (3231).

10. The handle structure according to claim 9, characterized in that the traction block (313) is provided with two blocks, both traction blocks (313) are slidably arranged in the first sliding rail (3121), the first protrusions (3131) are located in the first guiding rail inside the sleeve (311), the sleeve (311) is rotated to drive the first protrusions (3131) to slide along the direction of the first guiding rail, and both traction blocks (313) are relatively slidable in the first sliding rail (3121);

The second traction piece (314) is provided with two, the one end of second traction piece (314) is connected respectively traction block (313) both ends that set up relatively, the other end of second traction piece (314) is connected respectively both sides second action subassembly (32), rotate sleeve (311) are in order to drive traction block (313) remove, traction block (313) drive second traction piece (314) pulling second action subassembly (32) joint piece (3231).

11. The handle structure according to claim 10, wherein one of the traction blocks (313) is provided with a guide hole (3132), the other traction block (313) is provided with a guide column (3133), a seventh elastic member is sleeved outside the guide column (3133), one end of the seventh elastic member abuts against the bottom of the guide hole (3132), the other end of the seventh elastic member abuts against the traction block (313), and the guide column (3133) is insertable into the guide hole (3132).

12. The handle structure according to claim 6, wherein the second action assembly (32) further comprises:

a first unlocking member (321), the first unlocking member (321) being disposed at one end of the connection tube (132) and being located in the telescopic tube (133), the first unlocking member (321) including a second lock tongue (3211);

A linkage member (322), wherein the linkage member (322) is slidably arranged in the telescopic pipe (133) and is positioned at one end of the telescopic pipe (133) away from the connecting pipe (132), the first unlocking member (321) is connected with the linkage member (322) through the second lock tongue (3211), and the first unlocking member (321) is used for driving the linkage member (322) to move; and

the second unlocking member (323), the second unlocking member (323) is arranged at the end part of the telescopic pipe (133), the second unlocking member (323) is connected with the linkage member (322), the second unlocking member (323) comprises the clamping block (3231) and a second clamping groove (3232 a), and the linkage member (322) drives the clamping block (3231) to be clamped in the second clamping groove (3232 a) so that the telescopic pipe (133) can be overturned.

13. The handle structure according to claim 12, characterized in that said first unlocking member (321) comprises:

a second housing (3212), wherein the second housing (3212) is arranged at one end of the connecting pipe (132), the second housing (3212) is inserted into the telescopic pipe (133), a second sliding chute (3212 a) is arranged in the second housing (3212), and a second driving inclined plane (3212 b) is arranged at the inner side of the second housing (3212);

A second driving block (3213), the second driving block (3213) is slidably arranged in the second sliding chute (3212 a), a third elastic piece (3214) is arranged between the second driving block (3213) and the second housing (3212), the third elastic piece (3214) is positioned in the second sliding chute (3212 a), one end of the third elastic piece (3214) abuts against one end of the second driving block (3213), the other end of the third elastic piece (3214) abuts against the inner side wall of the second sliding chute (3212 a), the second driving block (3213) is connected with the second operation assembly (31), and the second operation assembly (31) drives the second driving block (3213) to slide in the second sliding chute (3212 a); and

the novel lock comprises a lock tongue sleeve (3215), wherein the lock tongue sleeve (3215) is slidably arranged in a second driving block (3213), the lock tongue sleeve (3215) penetrates through the second driving block (3213), a fourth elastic piece (3216) is arranged between the lock tongue sleeve (3215) and the second driving block (3213), the fourth elastic piece (3216) is located in the second driving block (3213), one end of the fourth elastic piece (3216) abuts against the lock tongue sleeve (3215), the other end of the fourth elastic piece (3216) abuts against the inside of the second driving block (3213), a guide inclined surface matched with the second driving inclined surface (3212 b) is arranged outside the lock tongue sleeve (3215), and a second protrusion arranged at one end of the lock tongue sleeve (3215) can be inserted into the linkage member (322).

14. The handle structure according to claim 13, wherein the second lock tongue (3211) is slidably disposed in the lock tongue sleeve (3215), a fifth elastic member (3217) is disposed between the second lock tongue (3211) and the lock tongue sleeve (3215), one end of the fifth elastic member (3217) abuts against the inside of the lock tongue sleeve (3215), the other end of the fifth elastic member (3217) abuts against the other end of the second lock tongue (3211), a portion of the second lock tongue (3211) protrudes outside the second housing (3212), and a protruding portion of the second lock tongue (3211) is insertable into the linking member (322).

15. The handle structure according to claim 13, characterized in that the first unlocking member (321) further comprises a second limit pin, which is arranged on the second driving block (3213) and is arranged in a second limit kidney-shaped hole (3215 a) of the tongue sleeve (3215) in a penetrating manner.

16. The handle structure according to claim 13, wherein the first unlocking member (321) further comprises a third limit pin (3219), and the third limit pin (3219) is disposed on the second lock tongue (3211) and is inserted into a third limit kidney hole of the lock tongue sleeve (3215).

17. The handle structure according to claim 12, wherein one end of the linkage member (322) is provided with a lock hole (3221), and the second lock tongue (3211) is insertable into the lock hole (3221) and fastened to one end of the linkage member (322).

18. Handle structure according to claim 12, characterized in that the inside of the telescopic tube (133) is provided with a second sliding rail in which the linkage member (322) slides.

19. The handle structure according to claim 12, wherein the linkage member (322) further comprises a fourth limit pin (3222), the fourth limit pin (3222) being disposed on the telescopic tube (133) and penetrating into a fourth limit kidney-shaped hole (3223) of the linkage member (322).

20. The handle structure according to claim 12, wherein the second unlocking member (323) further comprises:

a third housing (3232), wherein the third housing (3232) is arranged at one end of the telescopic tube (133) and is positioned at one side of the installation position (2), the third housing (3232) is rotatably arranged at one side of the installation position (2), the second clamping groove (3232 a) is arranged at the inner side of the third housing (3232), and the shape of the second clamping groove (3232 a) is matched with the shape of the clamping block (3231);

The support frame (3234), support frame (3234) joint is on the inboard of third shell (3232), joint piece (3231) are located one side of support frame (3234), be provided with sixth elastic component (3236) between support frame (3234) and joint piece (3231), the one end of sixth elastic component (3236) supports support frame (3234), the other end of sixth elastic component (3236) supports joint piece (3231);

the third traction piece (3235), the third traction piece (3235) is arranged in the third shell (3232) and is wound on the supporting frame (3234), one end of the third traction piece (3235) is arranged on the linkage component (322), the other end of the third traction piece (3235) is connected with the clamping block (3231), and the linkage component (322) drives the clamping block (3231) to be clamped in the second clamping groove (3232 a) through the third traction piece (3235);

wherein, part of the clamping block (3231) is clamped in the first clamping groove (2 a) of the mounting position (2).

21. The handle structure according to claim 20, wherein a second tensioning wheel (3234 a) is provided on the support frame (3234), the third traction element (3235) is wound around a circumferential side of the second tensioning wheel (3234 a), and the second tensioning wheel (3234 a) is used for tensioning the third traction element (3235).

22. The handle structure according to claim 9, wherein one of the fixing blocks (312) is provided with a avoiding hole (3122), the pressing block (211) comprises an acting portion (2113) and a traction portion (2114), the acting portion (2113) can be arranged on the sleeve (311) in a penetrating manner, the traction portion (2114) is arranged in the sleeve (311), one end of the acting portion (2113) and one end of the traction portion (2114) which are mutually abutted are provided with a matched arc surface (2113 a), the arc surface (2113 a) of the acting portion (2113) can be attached to the outer side surface of the fixing block (312), and the acting portion (2113) is pressed to drive the traction portion (2114) to be clamped in the avoiding hole (3122).

23. Handle structure according to claim 22, characterized in that the fixed block (312) is provided with a guide block (3123), the inside of the sleeve (311) is provided with a second guide rail (3111) matching the guide block (3123), the guide block (3123) is provided in the second guide rail (3111), the sleeve (311) is rotatable along the extension direction of the guide block (3123).

24. The handle structure according to claim 1, wherein one end of the fixed cylinder (3112) is provided with a rotation groove (3114), the rotation groove (3114) is provided in a circular ring, the rotation groove (3114) is provided around the circumference of the fixed cylinder (3112), both ends of the sleeve (311) are provided with rotation blocks (3113), and the rotation blocks (3113) are slidably provided in the rotation groove (3114).

25. A trolley comprising a handle structure according to any one of claims 1 to 24, said trolley being provided with said mounting location (2), said handle structure being rotatably mounted on said mounting location (2).