TWM503354U - Foldable and length-adjustable frame with brake function - Google Patents

Description

Frame that can be folded, adjusted in length and with brake function

The present invention relates to a frame, in particular to a frame that can be folded, adjusted in length and has a braking function.

Referring to FIG. 1 , a baby stroller 10 is generally provided for a baby seat 11 and includes a main support frame 12 , a rear rod portion 13 , a pivoting base member 12 and a rear rod A pivoting mechanism 14 at the junction of the portion 13 and a set of wheels 15 pivotally mounted to the main support frame 12 and the rear stem portion 13, respectively. The pivoting mechanism 14 allows the rear stem portion 13 to be rotated and folded onto the main support frame 12.

The main support frame 122 of the above-mentioned baby carriage cannot adjust the length or height, and cannot be applied to users of various heights; and the folding function is more positive, and the volume after folding is still quite occupied; and the set of wheels 15 cannot be Fixed or braked, can only be manually controlled by the user, which is more laborious and inconvenient.

Therefore, the object of the present invention is to provide a frame that can be folded, adjusted in length, and braked, which can be easily folded, reduced in storage volume, adjusted in height, and capable of braking.

Therefore, the novel frame capable of folding, adjusting the length and having the braking function comprises: a supporting component, a pair of wheels, a telescopic component, and a brake component.

The support assembly comprises a laterally disposed shaft, a pair of joints respectively disposed at two ends of the shaft, a pair of support outer tubes respectively disposed on the joints and extending upward along respective axial directions, and a pair of separately arranged A positioning rod in the outer tube. Each positioning rod has a plurality of positioning slots.

The pair of wheels are respectively disposed on the pair of joints.

The telescopic assembly comprises: a moving tube, a pair of adjusting members, a pair of adjusters, and two pulling wires.

The moving tube has an inverted U shape and has a horizontal tube portion, and two straight tube portions respectively extending from opposite ends of the horizontal tube portion along the corresponding axial direction and slidingly disposed on the pair of supporting outer tubes.

The pair of adjustment members are slidably disposed on the straight tube portions.

The pair of adjusters are respectively disposed at the ends of the straight pipe portions, and are respectively disposed on one of the positioning grooves on the respective positioning rods.

The traction wires are respectively connected to one of the corresponding adjusters and one of the adjusting members.

Simultaneously pulling the pair of adjusting members disposed on the two sides, the adjusting member on each side leads the pulling wire to pull the adjusting device out of the positioning groove, so that the moving tube can be moved relative to the supporting outer tube to adjust the exposure length.

The brake assembly includes: a pair of brakes, two brake levers, a controller, and two brake wires.

The pair of brake stoppers are respectively disposed on the pair of joints.

The brake levers are each connected to a corresponding one of the adjusters and one of the brakes.

The controller is disposed in the horizontal tube portion.

One of each of the brake wires of each of the brake wires is connected to the controller, and the other end is connected to the pair of adjusters.

Pressing the controller will interlock the brake wires on both sides to drive the pair of adjusters to pull up the brake levers, and then pull the brakes to brake the pair of wheels.

The utility model has the advantages that the height of the vehicle body can be adjusted through the telescopic assembly, and the storage volume can be easily retracted to reduce the storage volume, and the brake assembly can save the brakes.

10‧‧‧Baby frame

11‧‧‧Baby seat

12‧‧‧Main support frame

13‧‧‧ rear pole

14‧‧‧ pivoting mechanism

15‧‧‧ Wheel set

2‧‧‧Support components

21‧‧‧ shaft

22‧‧‧ joints

23‧‧‧Support outer tube

231‧‧‧ side hole

24‧‧‧ Positioning rod

241‧‧‧ positioning slot

25‧‧‧Slip plug

26‧‧‧Protection shell

261‧‧‧ openings

27‧‧‧Auxiliary pole

28‧‧‧Carmen

3‧‧‧ Wheels

31‧‧‧Axle

32‧‧‧ tires

4‧‧‧ Telescopic components

41‧‧‧Mobile tube

411‧‧‧Horizontal Department

412‧‧‧ Straight Tube Department

413‧‧‧Slot

42‧‧‧Adjustment

421‧‧‧cross bar

422‧‧‧

43‧‧‧ adjuster

431‧‧‧Sleeve

4311‧‧‧ bottom edge

4312‧‧‧ transverse pin slot

432‧‧‧Brakes

4321‧‧‧Limited column

4322‧‧‧Axial pin slot

433‧‧‧ traction parts

434‧‧‧ linkages

4341‧‧‧ Positioning block

4342‧‧‧ pin hole

4343‧‧‧rails

435‧‧‧ latch

436‧‧‧Axial elastic parts

437‧‧‧ Radial Elastic Parts

438‧‧‧

44‧‧‧ traction line

5‧‧‧Brake components

51‧‧‧Break stopper

511‧‧‧ brake film

512‧‧‧ linkage

52‧‧‧ brake lever

521‧‧‧ Limit slot

53‧‧‧ Controller

531‧‧‧Shell cover

532‧‧‧Drive gear

5321‧‧‧Chute

5322‧‧‧Return spring

533‧‧‧ driven gear

534‧‧‧Racks

535‧‧‧handle

536‧‧‧Locking unit

537‧‧‧fixed pin

538‧‧‧Press button

539‧‧‧Compression spring

54‧‧‧Brake line

61‧‧‧Seat unit

62‧‧‧ Wheeled wheel device

L‧‧‧ axial

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: FIG. 1 is a perspective view showing a baby carriage; FIG. 2 is a perspective view showing the present invention can be folded and adjusted. 3 is an exploded perspective view of an embodiment of the present invention; FIG. 3 is an exploded perspective view of an embodiment of the present invention; FIG. 4 is a partial cross-sectional view showing an auxiliary lever of the embodiment in an unfolded state; A controller of a brake assembly of the embodiment, and two adjustment members of the telescopic assembly; FIG. 6 is a partial exploded perspective view showing a telescopic assembly of the embodiment; Figure 7 is a view similar to Figure 6, illustrating a traction member of the present embodiment of the expansion member and a linkage member relative displacement; Figure 8 is a view similar to Figure 6, illustrating the expansion and contraction in this embodiment The traction member of the assembly, the linkage member and a brake member are assembled with each other; FIG. 9 is a partial cross-sectional view showing the cooperation between a support outer tube, a brake lever and components of the telescopic assembly in the embodiment; FIG. Is a partial exploded view illustrating the brake of the brake assembly in the embodiment; FIG. 11 is a partial exploded perspective view showing the components of a controller of the brake assembly of the embodiment; FIG. FIG. 13 is a partial cross-sectional view showing a state in which the brake device of the present embodiment is activated; FIG. 14 is a perspective view showing the present embodiment; A moving tube of the example can be adjusted to the exposed length; FIG. 15 is a perspective view showing the folded state of the embodiment; FIG. 16 is a partial cross-sectional view showing the auxiliary lever of the embodiment in a folded state. And Figure 17 is a schematic Described embodiment of the present embodiment mounted with a seat and an auxiliary wheel arrangement.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals. Because of this The new components are mostly symmetrically arranged, and the motions are also symmetrical. Some of the following descriptions are represented by only one component actuation, which is described briefly.

Referring to FIG. 2 and FIG. 3 , the embodiment of the frame that can be folded, adjusted in length and has a braking function comprises: a support assembly 2 , a pair of wheels 3 , a telescopic assembly 4 , and a brake assembly 5 .

The support assembly 2 includes a laterally disposed shaft 21, a pair of joints 22 respectively disposed at opposite ends of the shaft 21, and a pair of joints 22 respectively disposed on the joints 22 and facing upward in respective axial directions L (see FIG. 6) The extended support outer tube 23, the pair of positioning rods 24, the pair of anti-slip plugs 25, and a pair of protective shells 26, an auxiliary rod 27, and a pair of cassettes 28 respectively disposed outside the pair of joints 22. Each positioning rod 24 is disposed in the support outer tube 23 and has a plurality of positioning grooves 241. Each stop plug 25 is disposed at the top end of the support outer tube 23 and is used to fix the positioning rod 24. In the present embodiment, the supporting outer tubes 23 have a hollow cylindrical shape, and the respective axial directions L are respectively the central axes of the respective supporting outer tubes 23, extending along the length direction of the respective supporting outer tubes 23, but Not limited to this.

The pair of wheels 3 are respectively disposed on the pair of joints 22. Each wheel 3 has an axle 31 pivoted to the joint 22 and a tire 32 disposed outside the axle 31.

Referring to Figures 3 and 4, each protective casing 26 has an upward opening 261. The auxiliary rod 27 is in an inverted U shape, and the two ends are respectively disposed at the pair of protective shells 26 adjacent to the opening 261. The bottom end of the supporting outer tube 23 on each side is located in the protective shell 26 and opens a side to the auxiliary A side hole 231 of the rod 27. Each of the latches 28 is pivotally disposed in each of the protective casings 26 and located between the side holes 231 and the ends of the auxiliary levers 27.

The auxiliary lever 27 is movable relative to the pair of support outer tubes 23 between a deployed position and a folded position. In the deployed position, the auxiliary lever 27 abuts against the edge of the protective casing 26 and is at a large angle with the pair of supporting outer tubes 23, and the auxiliary lever 27 pushes against the latch 28 to partially penetrate the latch 28 The side hole 231. In the folded position, the cassette 28 is abutted by the telescopic assembly 4, and the auxiliary lever 27 is brought into contact with the pair of support outer tubes 23.

Referring to FIGS. 5 and 6, the telescopic assembly 4 includes a moving tube 41, a pair of adjusting members 42, a pair of adjusters 43, and two pulling wires 44.

The moving tube 41 has an inverted U shape and has a horizontal tube portion 411, and two straight tubes respectively extending from opposite ends of the horizontal tube portion 411 along the corresponding axial direction L and slidingly disposed on the pair of supporting outer tubes 23. Part 412. Each of the straight tube portions 412 has a plurality of sliding grooves 413 which are symmetrically formed in the axial direction L and are provided for the adjusting members 42 to slide along the axial direction L.

The pair of adjusting members 42 are slidably disposed on the straight tube portions 412. The adjusting member 42 of each side has a cross bar 421 through which the sliding grooves 413 are disposed and provided for the pulling wire 44, and a periphery of the straight pipe portion 412 and the horizontal pipe portion 411 is provided for convenient use. The sleeve 422 operated by the person.

Referring to FIGS. 6-9, the pair of adjusters 43 are respectively disposed at the ends of the straight tubes 412. Each adjuster 43 has a sleeve 431, a brake member 432, a traction member 433, a linkage member 434, two latches 435 arranged in the axial direction L, an axial elastic member 436, and three radial elastic members. Pieces 437.

The brake member 432, the traction member 433, and the linkage member 434 on the same side are assembled together with the sleeve 431. The sleeve 431 is covered in the above group The outermost part of the piece is disposed at the bottom end of the straight tube portion 412, and has a bottom edge 4311 protruding radially outwardly and abutting against the straight tube portion 412, and two lateral pin slots 4312. In the present embodiment, for ease of assembly, the sleeve 431 is formed into two parts and joined to each other when installed.

The center of each of the brake members 432 is hollow, and the bottom end is lower than the sleeve 431, and has a limiting post 4321 extending radially outward from the bottom end, and two axial latch slots 4322 arranged along the axial direction L. .

The pulling member 433 of each side is sleeved on the braking member 432 and is convexly engaged with the linking member 434, and the top end is connected to the other end of the pulling wire 44.

The linking member 434 on each side has a pair of positioning blocks 4341 radially protruding from the bottom end, and two latch holes 4342 arranged along the axial direction L. The pair of positioning blocks 4341 are assembled to project rearwardly from the sleeve 431 and define a sliding rail 4343 around the outer side of the sleeve 431.

The latches 435 of each side are perpendicular to the transverse direction L through the transverse latching slots 4312, the axial latching slots 4322 and the latching holes 4342, and the sleeve 431 and the braking member 432 are interlocked with the latching member 432. Pieces 434 are connected in series.

The axial elastic member 436 of each side is located in the braking member 432 and respectively abuts against the bottom end of the linking member 434 and the braking member 432. The radial elastic members 437 respectively abut the side edge of the linking member 434 and Sleeve 431. In the present embodiment, the number of the radial elastic members 437 is three, but at least one of them can achieve the effect of the topping.

One end of the pulling wire 44 on each side is disposed on the traction member 433. The other end is disposed on the crossbar 421 of the adjusting member 42 . The pulling member 433 is pulled by the adjusting member 42 to pull the pulling wire 44.

The components of the telescopic assembly 4 are fitted as described above, and the operation of the telescopic assembly 4 will be described next.

In the case of the general use, the telescopic assembly 4 is configured to cooperate with each other. The pair of positioning blocks 4341 of the linking member 434 on either side of the connecting member 434 are locked in one of the positioning slots 241 of the positioning rod 24, and are stably matched. Produce relative movement.

To adjust the exposed length of the moving tube 41, the pair of adjusting members 42 disposed on the two sides are synchronously pulled, and the adjusting member 42 on each side pulls the pulling line 44 to bring the pulling member 433 upward (see FIG. 7). And the relative movement of the linkage 434 is radially slid away from the traction member 433, and the pair of positioning blocks 4341 are disengaged from the positioning groove 241. At this time, the moving tube 41 can be pulled up and down, and the moving tube 41 is moved up and down. The length of the exposed portion can be adjusted relative to the support outer tube 23 until the moving tube 41 is adjusted to the desired position, the pair of adjusting members 42 are released, and the moving tube 41 is slightly adjusted to the elastic members 436, 437. The displaced linking member 434 is pushed back, and the pair of positioning blocks 4341 can be clamped into one of the positioning slots 241 again.

Referring to Fig. 2 and Fig. 14, the state before and after the exposed length of the moving tube 41 is adjusted is shown.

Referring to FIGS. 3 and 10, the brake assembly 5 includes a pair of brakes 51, two brake levers 52, a controller 53, and two brake wires 54.

The pair of stoppers 51 are respectively disposed on the pair of joints 22. Each brake 51 has a brake roller 511 wound around the axle 31, and a pivoting device The joint 22 is connected to the link 512 of the brake disc 511. The brake wrap 511 is fixed at one end to the joint 22, and the other end is connected to the link 512, and is interlocked by the link 512.

Referring again to FIG. 8, each brake lever 52 is received in the support outer tube 23, and the bottom end protrudes from the support outer tube 23 and is connected to the link 512, and the opposite end is slidable to the pair of positioning blocks. The sliding rail 4343 is located between the 4341 and has a plurality of limiting slots 521 for the limiting post 4321 of the bottom end of the braking member 432. The top end of the brake member 432 is provided for the brake wire 54.

Referring to FIG. 5 and FIG. 11 , the controller 53 is disposed on the horizontal tube portion 411 and has a cover 531 disposed on the horizontal tube portion 411 of the moving tube 41 and movably disposed on the cover 531 . a driving gear 532, a driven gear 533 meshing with the driving gear 532, and a rack 534 for respectively engaging the driving gear 532 and the driven gear 533 for the braking wires 54, and controlling the driving gear A handle 535 of 532, and a locking unit 536. In the present embodiment, the driving gear 532 is integrally formed with the handle 535 and pivoted around the center of the driving gear 532.

The driving gear 532 of the controller 53 has a sliding slot 5321. The locking unit 536 has a fixing pin 537 fixed on one side of the cover 531 and received in the sliding slot 5321. The other side of the cover 531 is hollow and can be sleeved into the pressing button 538 of the fixing pin 537, and a set of compression springs 539 provided on the pressing button 538.

One end of each of the brake wires 54 is connected to the rack 534, and the other end is connected to the brake member 432 through the top end of the linkage 434 ( See Figure 9).

Referring to FIG. 8 and FIG. 9, it should be noted that although the brake lever 52 is engaged with the brake member 432, it does not move up and down with the movement tube 41, and is only controlled by the brake member 432. The use of the adjuster 43 is used in a dual-purpose manner. One effect is to adjust the exposed length of the moving tube 41 as described in the foregoing description, and the other effect is to assist the braking. The braking members 432 are respectively connected. The brake wire 54 and the brake lever 52 serve as a relay station of the brake assembly 5, and how the brake member 432 centrally coordinates the cooperation between the telescopic assembly 4 and the brake assembly 5, as will be explained below.

In the condition that the length of the moving tube 41 is adjusted, the pair of adjusting members 42 are disposed on both sides, and the adjusting member 42 on each side pulls the pulling wire 44 to bring the pulling member 433 upward. The linkage 434 is relatively displaced to slide radially away from the traction member 433. The brake member 432 is also actuated in synchronization. The linkage member 434 slides radially and drives the pins 435. The pins 435 can follow the pin 435. The lateral latching grooves 4312 of the sleeve 431 are laterally moved, and the braking member 432 is laterally slid away from the brake lever 52, and the limiting post 4321 of the braking member 432 is away from the limit of the brake lever 52. The slot 521, so that the telescopic assembly 4 can smoothly slide relative to the support outer tube 23 and the brake lever 52, and after the moving tube 41 is adjusted to the ideal position, the positioning blocks 4341 of the linkage 434 are snapped into another The positioning slot 241 is located, and the limiting post 4321 of the braking member 432 is also synchronously inserted into the limiting slot 521, so that the braking function can be used once the moving tube 41 is positioned. In other words, the telescopic assembly 4 and the brake assembly 5 can be used together, and the adjustment length and the brake function do not interfere with each other.

In order to achieve the above-mentioned effects, it should be noted that the limiting slots 521 on the brake lever 52 respectively correspond to the positions of the positioning slots 241 on the positioning rod 24, so that the limiting post 4321 and the The positioning block 4341 synchronizes the card. In this embodiment, the adjuster 43 further has a cross pin 438 which is slidably disposed at the bottom end of the connecting member 434 and the sleeve 431, and is sleeved on one of the radial elastic members 437. The space protruding from the sliding rail 4343 is disposed between the moving tube 41 and the brake lever 52 to prevent the brake lever 52 from moving radially with the linkage 434.

The cooperation between the brake assembly 5 and the telescopic assembly 4 is comprehensively explained, and the braking function of the brake assembly 5 will be described next.

Referring to FIG. 9 to FIG. 13 , in the case of general use, the telescopic assembly 4 is configured to cooperate with each other, and the limiting post 4321 of the braking member 432 on either side is engaged with one of the limiting slots of the brake lever 52 . 521, the state when the brake 51 is not activated is as shown in Fig. 12. At this time, the moving tube 41 is fixed, and the pair of wheels 3 are freely movable.

When the pair of wheels 3 are to be decelerated or braked, the handle 535 is pressed to rotate the driving gear 532 and the driven gear 533, and the racks 534 are brought closer to each other, so that the brake wires 54 are pulled. Pulling up the pair of brake members 432, the limit post 4321 of the brake member 432 on each side hooks the brake lever 52 upward, and interlocks the link 512 to pivot the link 512 and tighten the brake The winding piece 511 starts the stopper 51 (Fig. 13), and decelerates the wheel shaft 31 by friction, thereby further decelerating or stopping the wheel 3.

Referring to Figures 5 and 11, it can be understood that the brake system is usually Components that can be automatically reset are set. In the embodiment, the driving gear 532 is further provided with a return spring 5322. The return spring 5322 is pushed against the driving gear 532 to make the handle 535 outward. When the hand is released, the handle 535 is reset to the unrestricted position. The state of being pressed causes the racks 534 to be moved away from each other, the brake wires 54 are relaxed, and the brakes are released, because the pressure-release brake function is well known in the art, and therefore will not be described again.

Further, the locking unit 536 of the brake assembly 5 also has a function of locking the brake state.

Pressing the handle 535 to rotate the driving gear 532, the sliding slot 5321 slides over the fixing pin 537, and when the specific position is reached, that is, when the braking state to be locked is reached, the pressing button 538 is depressed and the hand is released. 535, the pressing button 538 will be inserted into the fixing pin 537 and locked in the sliding slot 5321, and the driving gear 532 is positioned to lock the braking state. To unlock the state, the handle 535 is simply pressed again, and the compression spring 539 pushes the push button 538 away from the chute 5321 through the elastic restoring force without positioning the driving gear 532.

Because the new model has many functions, the description is more complicated, and so far, various modes of use of the present invention have been introduced. The present invention can be accommodated without being used, and the following describes the folding method of the present invention.

Referring to Figures 2, 4 and Figures 15, 16, wherein Figures 2 and 4 show the unfolded state, the auxiliary lever 27 is held in the deployed position, and Figures 15 and 16 show the folded state. 27 is located at the collapsed position. The pair of adjusting members 42 are pulled, the moving tube 41 is received into the pair of supporting outer tubes 23, and the telescopic assembly 4 is pressed down to the bottom end of the pair of supporting outer tubes 23, and pushed The pair of latches 28 pivot, and the pair of latches 28 are pushed against the auxiliary lever 27 to rotate against the pair of support outer tubes 23, so that the auxiliary lever 27 is moved from the deployed position to the folded position. Complete the break easily. The volume of the new type will be minimally received and convenient for storage.

Referring to Figure 17, the present invention can be used with a seat 61 and can be used with an auxiliary wheel unit 62 for use as a stroller.

Through the above description, the advantages and functions of the novel frame that can be folded, adjusted in length and with brake function are listed below:

1. The present invention can adjust the exposed length of the moving tube 41 according to the needs of the user to adapt to the height of the user, and the adjustment method is quite simple and convenient to operate.

Second, the new model has a brake function, the user can brake only with one hand, and the other hand can be vacated to do other things, which is easier and less laborious, and does not require effort to pull the whole vehicle.

Third, the new model has the function of locking the brake state in addition to the simple braking function, and the user can safely park the new type without worrying about the new type sliding. Of course, it is also possible to adjust the locking state to deceleration, which can increase the friction of the pair of wheels 3, and is more suitable for use when going downhill, so as to avoid the large undershooting force of the present model being too large, and the user is not easy to control.

4. The present invention can be folded. What is more, the present invention can simultaneously fold the moving tube 41 and the auxiliary rod 27 to minimize the volume and simplify the storage step, which is quick and convenient.

5. This new model can be used as the frame of the stroller, because the overall function is compatible with each other, and it can be both easy to operate and safe to use. More peace of trust.

In summary, the present invention has several functions, so it can achieve the purpose of the present invention.

However, the above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, that is, the simple equivalent changes and modifications made in accordance with the scope of the present patent application and the contents of the patent specification, All remain within the scope of this new patent.

2‧‧‧Support components

21‧‧‧ shaft

23‧‧‧Support outer tube

27‧‧‧Auxiliary pole

3‧‧‧ Wheels

32‧‧‧ tires

4‧‧‧ Telescopic components

41‧‧‧Mobile tube

42‧‧‧Adjustment

5‧‧‧Brake components

Claims (10)

The frame with adjustable length and braking function comprises: a supporting assembly comprising a laterally disposed shaft, a pair of joints respectively disposed at two ends of the shaft, and a pair respectively disposed on the joints and along respective axial directions a support outer tube extending upwardly, and a pair of positioning rods respectively disposed in the outer tube of the support, each positioning rod has a plurality of positioning grooves; a pair of wheels respectively disposed on the pair of joints; and a telescopic assembly comprising: a moving tube having an inverted U shape and having a horizontal tube portion, and a pair of straight tubes extending from the opposite ends of the horizontal tube portion along the corresponding axial direction and slidingly disposed on the pair of supporting outer tubes The adjusting member is slidably disposed on the straight pipe portions, and a pair of adjusters are respectively disposed at the ends of the straight pipe portions, and are respectively disposed on one of the positioning grooves on the respective positioning rods, and two The traction line is respectively connected to one of the corresponding adjusters and one of the adjusting members, and the pair of adjusting members respectively disposed on the two sides are synchronously pulled, and the adjusting member on each side leads the pulling line to pull the adjusting device out of the positioning a groove for moving the moving tube relative to the support outer tube To adjust the exposed length; a brake assembly, comprising: a pair of brakes, respectively disposed on the pair of joints, two brake levers, each connected to a corresponding one of the adjusters and one of the brakes, a controller, set In the horizontal pipe section, and Two brake lines, one of each of which is connected to the controller, and the other end is connected to the pair of adjusters, and the controller is pressed, and the brake wires on both sides are connected to drive the pair of adjusters to pull up. Wait for the brake lever and then tighten the brake to brake the pair of wheels. The frame of claim 1, wherein the brake assembly has a plurality of limiting slots, and each of the adjusters has a braking member. The brake wire is connected to the top end of each brake member, and the bottom end has a limiting post that is disposed on one of the limiting slots. When the controller is pressed, the braking wire on either side drives the braking device to pull up the brake. Rod. The frame according to claim 2, wherein the adjuster of the telescopic assembly further has a set of traction members disposed on the brake member and connected to the traction wire, and a linking member matched with the traction member, each linking member has a pair of positioning blocks radially protruding from the bottom end, and the pulling wire on either side pulls the pulling member to cause relative displacement of the linking member The positioning block is separated from the positioning slot. The frame according to claim 3, wherein the adjuster has a sleeve and two axially arranged latches on the same side. The traction member, the linkage member, and the brake member are assembled together with the sleeve, the sleeve cover is disposed on the outer side, and has a radially outwardly protruding portion for abutting the tube portion of the moving tube a bottom edge, and two transverse pin slots, the brake member has a two-axis pin slot, the linkage has two pin holes, the pins have the sleeve, The brake member and the linkage member are laterally connected in series. The frame of claim 4, wherein the adjuster has a brake function, wherein each adjuster of the telescopic assembly further has a bottom portion located in the brake member and respectively abutting the bottom end of the linkage member An axial elastic member of the brake member, and at least one radial elastic member respectively abutting against a side edge of the linkage member and the sleeve, the elastic member for pushing the displaced linkage member back. The frame for folding, adjusting the length and having the braking function according to claim 1, wherein each of the moving tubes has a set of symmetry, the axial opening and the adjusting members are slid along the axial direction. The sliding slot is provided, each adjusting member has a crossbar through which the sliding slots are provided and provided for the pulling line, and a loop sleeve provided for the user to operate the crossbar. The frame of claim 2, wherein the controller of the brake assembly has a cover disposed on the horizontal tube portion of the moving tube, and movably a driving gear disposed on the cover, a driven gear meshing with the driving gear, two meshing gears of the driving gear and the driven gear, and a handle for controlling the driving gear, each braking wire One end of each is connected to the rack, the other end is connected to the brake member through the top end of the linkage, and the handle is pressed to rotate the driving gear and the driven gear, and the racks are brought closer to each other, so that The brake wires are pulled, and the pair of brakes are pulled up, and the brake lever is pulled up. The frame of claim 7, wherein the driving gear of the controller has a sliding slot, and the controller further has a locking unit, the locking unit has a solid Located on the cover a fixing pin disposed on one side of the sliding slot, a pressing button disposed on the other side of the cover and hollowly sleeved into the fixing pin, and a set of compression springs disposed on the pressing button When the handle is rotated to rotate the driving gear, the sliding slot slides over the fixing pin, and after a specific position, the pressing button is pressed and the handle is released, and the pressing button is inserted into the fixing pin and is locked The chute, while positioning the driving gear, presses the handle again, and the compression spring pushes the pressing button away from the sliding slot through the elastic restoring force without positioning the driving gear. The frame of the foldable, adjustable length and brake function of claim 1, wherein each wheel comprises an axle pivoted to the joint, and a tire disposed outside the axle, the brake assembly Each brake has a brake disc wound around the axle, and a connecting rod pivoted to the joint and respectively connecting the brake lever and the brake coil, the brake disc is fixed at one end and the other end is connected to the brake The lever is interlocked, the brake lever is pulled up to rotate the link, and the brake disc is tensioned, and the axle is decelerated by friction, so that the wheel can be stopped. The frame of claim 1, wherein the support assembly further comprises a pair of protective shells disposed outside the pair of joints, an auxiliary rod, and a pair of pivots respectively. Each of the protective shells has an upward opening, and the two ends of the auxiliary rod are respectively disposed at adjacent openings of the pair of protective shells, and the bottom end of the supporting outer tube on each side is located at the protective shell And a side hole of the auxiliary rod is disposed inside, and each of the latches is disposed in each of the protective shells and located between the side holes and the end of the auxiliary rod, the auxiliary rods being opposite to the pair of supports In a deployed position And moving between a folding position, the auxiliary rod abuts against the edge of the protective shell and is at a large angle with the pair of supporting outer tubes. In the folding position, the auxiliary rod supports the outer tube Rely on.