CN218750958U - Frame convenient to it is folding - Google Patents

Abstract

The utility model discloses a frame convenient to it is folding, including the supporting leg subassembly, the supporting leg subassembly includes the front leg, fixedly connected with cover locates the last external member on it on the front leg, the front leg on sliding connection have a external member down, the supporting leg subassembly still include with external member down around first axis articulated back leg, be equipped with the bracing piece between back leg and the last external member, connecting rod under fixedly connected with on the external member down, lower connecting rod on be connected with the connecting rod, last connecting rod upper end be connected with the handspike, it enables the first locking mechanism of the two locking to go up to be equipped with between connecting rod and the lower connecting rod, the handspike on be equipped with the unlocking piece that can unblock first locking mechanism, be equipped with between front leg and the lower connecting rod and can lock the two second locking mechanism that makes the frame keep the expansion state, easy operation is swift, can fold the frame through unblock second locking mechanism, is convenient for deposit or carry.

Description

Frame convenient to it is folding

[ technical field ] A method for producing a semiconductor device

The utility model relates to a frame convenient to it is folding.

[ background of the invention ]

The frame on the existing market generally can both be folded, and the frame after folding not only occupies less space, can also convenience of customers carry, has alleviateed the burden when the user goes on a journey greatly. Although the frame on the market can be generally folded, the folding process of the existing frame is complex, and parts are various, so that the frame is complicated in folding or unfolding steps, and inconvenience is brought to a user.

Therefore, the present invention has been made to solve the above problems.

[ Utility model ] content

The utility model aims at overcoming the defects of the prior art, providing a frame convenient to fold, having the characteristics of simple operation and small occupied space.

The utility model discloses a realize through following technical scheme:

the utility model provides a frame convenient to it is folding, includes supporting leg subassembly 1, supporting leg subassembly 1 includes preceding leg 11, fixedly connected with cover last external member 111 on it is located to preceding leg 11, preceding leg on sliding connection have external member 112 down, supporting leg subassembly 1 still include with external member 112 down around first axis A articulated rear leg 12, rear leg 12 and last external member 111 between be equipped with bracing piece 2, 2 one end of bracing piece and rear leg 12 are articulated around second axis B, the bracing piece 2 other end and last external member 111 are articulated around third axis C, connecting rod 3 under the fixedly connected with on the external member 112 down, lower connecting rod 3 on be connected with connecting rod 4, last connecting rod 4 upper end be connected with handspike 5, it can make the first locking mechanical system 6 of the two locking to be equipped with between connecting rod 4 and the lower connecting rod 3, handspike 5 on be equipped with the unblock piece 51 that can unblock first locking mechanical system 6, preceding leg 11 and lower connecting rod 3 between be equipped with and can lock the two locking mechanism 7 that make the frame keep the state, preceding leg 11 and rear leg 12 all be equipped with the wheel 13.

The unlocking member 51 includes a rotating member 511 disposed on the handle bar 5, a moving block 514 capable of being engaged with the rotating member 511 when the rotating member 511 rotates is disposed in the rotating member 511, a pin 5141 is disposed on the moving block 514, a guide groove 5111 which is engaged with the pin 5141 when the rotating member 511 rotates and enables the moving block 514 to move transversely is disposed on the rotating member 511, one end of the moving block 514 is connected to a pulling rope 515, and the other end of the pulling rope 515 is connected to the first locking mechanism 6.

The unlocking member 51 further comprises a shifting block 512 arranged on the hand push rod 5 and capable of locking the rotating member 511, and a first resetting member 91 is arranged between the shifting block 512 and the hand push rod 5.

The lower connecting rod 3 is connected with the upper connecting rod 4 in a sliding manner.

The first locking mechanism 6 comprises an upper fixed seat 61 fixedly connected to the upper connecting rod 4, an upper locking seat 62 capable of moving up and down in the upper fixed seat 61 and an upper locking block 63 capable of moving transversely in the upper locking seat 62 are arranged in the upper fixed seat 61, a first inclined surface 621 is formed on the upper locking seat 62, a second inclined surface 631 capable of being matched with the first inclined surface 621 to enable the upper locking block 63 to move is formed on the upper locking block 63, a first locking hole 64 capable of allowing the locking block 63 to pass through is formed in the upper fixed seat 61, a second locking hole 65 capable of being clamped with the upper locking block 63 is formed in the lower connecting rod 3, a second resetting piece 92 capable of enabling the upper locking seat 62 to move downwards is arranged between the upper locking seat 62 and the upper fixed seat 61, and a third resetting piece 93 capable of enabling the upper locking block 63 to reset is arranged between the upper locking block 63 and the upper connecting rod 4.

Second locking mechanical system 7 is including lower fixing base 71 of fixed connection in lower connecting rod 3 and the lower locking seat 72 that can reciprocate in lower connecting rod 3, be equipped with the lower locking piece 73 that can be at the inside lateral shifting of lower fixing base 71 in the lower locking seat 72, be formed with third inclined plane 721 on the lower locking seat 72, be formed with fourth inclined plane 731 that can cooperate the motion with third inclined plane 721 on the lower locking piece 73, be equipped with the third locking hole 31 that can supply lower locking piece 73 to pass on the lower connecting rod 3, be equipped with the fourth locking hole 121 that can block with lower locking piece 73 on the front leg 11, be equipped with the fourth piece 94 that resets that can make lower locking seat 72 upward movement between lower fixing base 71 and the lower locking seat 72, be equipped with the fifth piece 95 that resets that can make lower locking piece 73 reset between lower locking piece 73 and the lower locking seat 72.

The seat assembly 8 capable of being connected to the upper suite 111 is arranged on the frame, the seat assembly 8 comprises a seat plate 81, the seat plate 81 is connected with a handrail 82 and a backrest 83 in a rotating mode, the seat assembly 8 further comprises a clamping seat 84 capable of being connected to the frame, and a locking assembly 85 capable of enabling the seat assembly 8 to keep an unfolded state is arranged between the clamping seat 84 and the backrest 83.

The locking assembly 85 comprises a first connecting portion 851 arranged on the backrest 83, one side of the first connecting portion 851 is rotatably connected with a second connecting portion 852 arranged on the seat plate 81, one side of the second connecting portion 852 is provided with a clamping sheet 853 connected to the armrest 82, and a clamping piece 854 capable of clamping with the second connecting portion 852, the clamping sheet 853 and the clamping seat 84 is arranged between the backrest 83, the seat plate 81, the armrest 82 and the clamping seat 84.

The backrest 83 is provided with a first connecting portion 851, a fifth inclined surface 8511 capable of enabling the clamping member 854 to move transversely when the backrest 83 rotates is arranged on the first connecting portion 851, a sixth inclined surface 8541 capable of being matched with the fifth inclined surface 8511 to enable the clamping member 854 to move is arranged on the clamping member 854, a sixth resetting member 96 capable of enabling the clamping member 854 to reset is arranged between the clamping member 854 and the clamping seat 84, the clamping member 854 is further provided with a clamping block 8542 capable of being clamped with the second connecting portion 852, the clamping block 853 and the clamping seat 84, the second connecting portion 852 is provided with a first locking position 8521 capable of being clamped with the clamping block 8542, the clamping block 853 is provided with a second locking position 8531 capable of being clamped with the clamping block 8542, and the clamping seat 84 is provided with a third locking position 841 capable of enabling the clamping block 8542 to be clamped after being unlocked.

An exposed operating part 842 capable of sliding relative to the clamping seat 84 is further arranged on the clamping seat 84, a bayonet 1111 is arranged on the upper suite 111, a clamping lock part 8421 capable of being clamped with or separated from the bayonet 1111 is arranged on the operating part 842, and a seventh reset part 97 is further arranged between the clamping lock part 8421 and the clamping seat 84.

Compared with the prior art, the utility model discloses there is following advantage:

1. when the folding bicycle needs to be folded, the unlocking piece is operated to unlock the first locking mechanism and further unlock the second locking mechanism, and the upper sleeve piece is fixedly connected with the front leg, and the lower sleeve piece is fixedly connected with the lower connecting rod, so that after the second locking mechanism is unlocked, the lower connecting rod and the upper connecting rod are unlocked and driven by the lower sleeve piece to slide downwards on the front leg, and the lower sleeve piece is finally close to the wheel of the front leg; because the rear leg and the lower sleeve are hinged around the first axis, the supporting rod between the upper sleeve and the rear leg is hinged on the upper sleeve around the third axis and hinged on the rear leg around the second axis, after the second locking mechanism is unlocked, the rear leg rotates around the first axis, the lower end of the supporting rod rotates clockwise around the second axis, and the upper end of the supporting rod finally approaches to the wheel of the rear leg. The first locking mechanism is unlocked through the unlocking piece, and then the second locking mechanism is unlocked, so that the front legs and the rear legs are folded, the operation is convenient, and the storage and the carrying are facilitated.

2. When the second locking mechanism is unlocked, the unlocked upper connecting rod moves downwards in the lower connecting rod, the upper fixing seat on the upper connecting rod impacts the lower locking seat to move downwards, and the third inclined surface on the lower locking seat and the fourth inclined surface on the lower locking block are mutually matched to ensure that the lower locking block transversely moves in the lower fixing seat and finally breaks away from the fourth locking hole, so that the second locking mechanism is unlocked; when the frame is unfolded, the third reset piece between the fixed seat and the lower locking seat drives the lower locking seat to reset, the fourth reset piece between the lower locking block and the lower locking seat drives the lower locking block to reset, and the lower locking block can be clamped into the fourth locking hole again. The frame is unlocked through the second locking mechanism, so that the folding process of the frame is more convenient, time-saving and labor-saving; through the mutual cooperation of the third inclined plane on the lower locking seat and the fourth inclined plane on the lower locking piece, the unlocking process is more stable, and the use experience of a user is improved.

[ description of the drawings ]

FIG. 1 is a perspective view of the present invention when it is deployed;

fig. 2 is a plan view of the present invention when deployed;

FIG. 3 is a second perspective view of the present invention when it is unfolded;

FIG. 4 is one of the perspective views of the present invention when folded;

fig. 5 is a second perspective view of the utility model when folded;

figure 6 is a perspective view of the seat assembly of the present invention;

fig. 7 is one of cross-sectional views of the unlocking member of the present invention;

fig. 8 is a second cross-sectional view of the unlocking member of the present invention;

fig. 9 is an exploded view of the unlocking member of the present invention;

fig. 10 is an exploded view of the first locking mechanism of the present invention;

fig. 11 is a cross-sectional view of a first locking mechanism of the present invention;

fig. 12 is one of the cross-sectional views of the second locking mechanism of the present invention;

fig. 13 is a second cross-sectional view of the second locking mechanism of the present invention;

figure 14 is an exploded view of a second locking mechanism of the present invention;

figure 15 is an exploded view of the locking assembly of the present invention.

[ detailed description ] A

The invention will be further described with reference to the accompanying drawings:

as shown in fig. 1-5, a frame convenient to fold, including supporting leg subassembly 1, supporting leg subassembly 1 includes preceding leg 11, last external member 111 on it is located to fixedly connected with cover on preceding leg 11, preceding leg on sliding connection have down external member 112, supporting leg subassembly 1 still include with down external member 112 around first axis a articulated back leg 12, back leg 12 and last external member 111 between be equipped with bracing piece 2, 2 one end of bracing piece and back leg 12 are articulated around second axis B, the bracing piece 2 other end is articulated around third axis C with last external member 111, fixedly connected with down connecting rod 3 on the external member 112 down, down connecting rod 3 on be connected with connecting rod 4, last connecting rod 4 upper end be connected with handspike 5, be equipped with the first locking mechanism 6 that enables the locking of the two between last connecting rod 4 and the lower connecting rod 3, handspike 5 on be equipped with the release 51 that can unblock first locking mechanism 6, be equipped with between preceding leg 11 and the lower connecting rod 3 and can lock the two and make frame locking mechanism 7 that keep the state, preceding leg 11 and back leg 13 all are equipped with the back wheel 13. When the folding chair needs to be folded, the unlocking piece 51 is operated to unlock the first locking mechanism 6, so that the second locking mechanism 7 is unlocked, the upper sleeve piece 111 is fixedly connected with the front legs 11, and the lower sleeve piece 112 is fixedly connected with the lower connecting rod 3, so that after the second locking mechanism 7 is unlocked, the lower connecting rod 3 and the front legs 11 are unlocked, the lower sleeve piece 112 drives the lower connecting rod 3 and the upper connecting rod 4 to slide downwards on the front legs 11, and the lower sleeve piece 112 is finally close to the wheels 13 of the front legs 11; because the rear leg 12 is hinged with the lower sleeve 112 around the first axis A, the supporting rod 2 between the upper sleeve 111 and the rear leg 12 is hinged on the upper sleeve 111 around the third axis C and hinged on the rear leg 12 around the second axis B, when the second locking mechanism 7 is unlocked, the rear leg 12 rotates around the first axis A, the lower end of the supporting rod 2 rotates clockwise around the second axis B, and the upper end of the supporting rod 2 finally approaches to the wheel 13 of the rear leg 12. The first locking mechanism 6 is unlocked through the unlocking piece 51, and then the second locking mechanism 7 is unlocked, so that the front legs 11 and the rear legs 12 are folded, the operation is convenient, and the storage and the carrying are facilitated.

As shown in fig. 7 to 9, the unlocking member 51 includes a rotating member 511 provided on the handle 5, a moving block 514 capable of engaging with the rotating member 511 when the rotating member 511 rotates is provided in the rotating member 511, a pin 5141 is provided on the moving block 514, a guide groove 5111 for engaging with the pin 5141 when the rotating member 511 rotates to transversely move the moving block 514 is provided on the rotating member 511, one end of the moving block 514 is connected to a pulling rope 515, and the other end of the pulling rope 515 is connected to the first locking mechanism 6. The user rotates the rotating member 511 to drive the moving block 514 inside to move transversely, the pin 5141 on the moving block 514 moves along the guiding groove 5111 on the rotating member 511, and the pull rope 515 at one end of the moving block 514 is tightened to drive the first locking mechanism 6 to unlock. The operation is convenient, time-saving and labor-saving.

As shown in fig. 7 to 9, the unlocking member 51 further includes a shifting block 512 provided on the handle 5 and capable of locking the rotating member 511, and a first restoring member 91 is provided between the shifting block 512 and the handle 5. The unlocking piece 51 is of a two-way lock structure, when the shifting block 512 and the hand push rod 5 are in a locked state, the rotating piece 511 cannot rotate, when unlocking, a user firstly shifts the shifting block 512 and then can rotate the rotating piece 511 to unlock the first locking mechanism 6; when the dial 512 is released, the first reset member 91 resets the dial 512, and the rotating member 511 cannot rotate. The rotating piece 511 is unlocked through the shifting block 512, so that a user can be prevented from mistakenly touching the rotating piece 511 to unlock the frame, and the safety is improved.

As shown in fig. 1, the lower connecting rod 3 is slidably connected with the upper connecting rod 4. Thereby carry out the unblock to first locking mechanical system 6 through unblock piece 51 and make in upper tie rod 4 slides into lower tie rod 3, reduced the frame volume, the user of being convenient for deposits and carries.

As shown in fig. 10 to 11, the first locking mechanism 6 includes an upper fixing base 61 fixedly connected to the upper connecting rod 4, an upper locking base 62 vertically movable in the upper fixing base 61 and an upper locking block 63 horizontally movable in the upper fixing base 62, a first inclined surface 621 formed on the upper locking base 62, a second inclined surface 631 formed on the upper locking block 63 and movable in cooperation with the first inclined surface 621, a first locking hole 64 formed on the upper fixing base 61 and through which the locking block 63 can pass, a second locking hole 65 formed on the lower connecting rod 3 and engageable with the upper locking block 63, a second reset piece 92 provided between the upper fixing base 62 and the upper fixing base 61 and capable of moving the upper locking base 62 downward, and a third reset piece 93 provided between the upper locking block 63 and the upper connecting rod 4 and capable of resetting the upper locking block 63. When the first locking mechanism 6 is unlocked, the unlocking member 51 pulls the upper locking seat 62 to move upwards through the pull rope 515, the second inclined surface 631 on the upper locking block 63 is matched with the first inclined surface 621 on the upper locking seat 62, and the upper locking block 63 transversely moves in the upper fixing seat 61, so that the upper locking block is separated from the second locking hole 65 on the lower connecting rod 3, and finally the unlocking of the lower connecting rod 3 and the upper connecting rod 4 is realized; when the frame is unfolded, the second reset piece 92 pushes the locking seat 62 to move downwards, and the third reset piece 93 drives the upper locking block 63 to move transversely, so that the locking block can be clamped into the second locking hole 65 again. Through the cooperation of the first inclined plane 621 on the upper locking seat 62 and the second inclined plane 631 on the upper locking block 63, the unlocking process is more stable, and the use experience of the user is improved.

As shown in fig. 12 to 14, the second locking mechanism 7 includes a lower fixing seat 71 fixedly connected in the lower connecting rod 3 and a lower locking seat 72 capable of moving up and down in the lower connecting rod 3, a lower locking block 73 capable of moving transversely in the lower fixing seat 71 is disposed in the lower locking seat 72, a third inclined surface 721 is formed on the lower locking seat 72, a fourth inclined surface 731 capable of moving in cooperation with the third inclined surface 721 is formed on the lower locking block 73, a third locking hole 31 through which the lower locking block 73 can pass is disposed on the lower connecting rod 3, a fourth locking hole 121 capable of being engaged with the lower locking block 73 is disposed on the front leg 11, a fourth reset piece 94 capable of moving the lower locking seat 72 upward is disposed between the lower fixing seat 71 and the lower locking seat 72, and a fifth reset piece 95 capable of resetting the lower locking block 73 is disposed between the lower locking block 73 and the lower locking seat 72. When the second locking mechanism 7 is unlocked, the unlocked upper connecting rod 4 moves downwards in the lower connecting rod 3, the upper fixing seat 61 on the upper connecting rod 4 impacts the lower locking seat 72 to make the lower locking seat move downwards, and at the moment, the third inclined surface 721 on the lower locking seat 72 and the fourth inclined surface 731 on the lower locking block 73 are mutually matched to make the lower locking block 73 move transversely in the lower fixing seat 71 and finally break away from the fourth locking hole 121, so that the second locking mechanism 7 is unlocked; when the frame is unfolded, the third reset piece 93 between the fixed seat 71 and the lower locking seat 72 drives the lower locking seat 72 to reset, the fourth reset piece 94 between the lower locking block 73 and the lower locking seat 72 drives the lower locking block 73 to reset, and the lower locking block 73 can be clamped into the fourth locking hole 121 again. The frame is unlocked through the second locking mechanism 7, so that the folding process of the frame is more convenient, time-saving and labor-saving; through the mutual cooperation of the third inclined surface 721 on the lower locking seat 72 and the fourth inclined surface 731 on the lower locking block 73, the unlocking process is more stable, and the use experience of the user is improved.

As shown in fig. 6, the frame is provided with a seat assembly 8 capable of being connected to an upper member 111, the seat assembly 8 includes a seat plate 81, the seat plate 81 is rotatably connected with an armrest 82 and a backrest 83, the seat assembly 8 further includes a snap-in seat 84 capable of being connected to the frame, and a locking assembly 85 capable of keeping the seat assembly 8 in a unfolded state is provided between the snap-in seat 84 and the backrest 83. A seat assembly 8 is arranged between the two upper suites 111, the seat assembly 8 comprises a locking assembly 85 which can keep the seat assembly 8 unfolded, and the seat plate 81, the armrests 82 and the backrest 83 can be folded together by driving the locking assembly 85 through the backrest 83 in the rotating process. The user sets up seat subassembly 8 on the frame thereby forms the bassinet that is convenient for children to take, has increased its practicality, and through adjusting locking Assembly 85 with seat subassembly 8 and frame together folding, reduced the volume of bassinet, be convenient for deposit and carry.

As shown in fig. 15, the locking assembly 85 includes a first connecting portion 851 disposed on the backrest 83, a second connecting portion 852 disposed on the seat plate 81 is rotatably connected to one side of the first connecting portion 851, a locking piece 853 connected to the armrest 82 is disposed on one side of the second connecting portion 852, and a locking piece 854 capable of being locked with the second connecting portion 852, the locking piece 853 and the locking seat 84 is disposed between the backrest 83, the seat plate 81, the armrest 82 and the locking seat 84. The utility model discloses a seat subassembly 8 is when using, thereby accomplishes folding or expansion of seat subassembly 8 through cooperation between first connecting portion 851, second connecting portion 852, joint piece 853, joint seat 84 and fastener 854.

As shown in fig. 15, a fifth inclined surface 8511 which enables the engaging member 854 to move laterally when the backrest 83 rotates is disposed on the first connecting portion 851, a sixth inclined surface 8541 which can cooperate with the fifth inclined surface 8511 to enable the engaging member 854 to move is disposed on the engaging member 854, a sixth resetting member 96 which enables the engaging member 854 to reset is disposed between the engaging member 854 and the engaging seat 84, a clamping block 8542 which can be engaged with the second connecting portion 852, the clamping piece 853 and the clamping seat 84 is further disposed on the engaging member 854, a first locking position 8521 which can be engaged with the clamping block 8542 is disposed on the second connecting portion 852, a second locking position 8531 which can be engaged with the clamping block 8542 is disposed on the clamping piece 853, and a third locking position 841 which enables the clamping block 8542 to be locked after being unlocked is disposed on the clamping seat 84. When the backrest 83 is rotated, the fifth inclined surface 8511 on the first connecting portion 851 can be engaged with the sixth inclined surface 8541 on the engaging member 854, so that the engaging member 854 can move transversely, when the block 8542 on the engaging member 854 is disengaged from the second locking position 8531 on the engaging piece 853, the armrest 82 can fall down automatically, when the block 8542 is completely disengaged from the first locking position 8521 on the second connecting portion 852, the engaging member 854 can be completely engaged into the engaging seat 84, and at this time, the seat plate 81 rotates relative to the engaging seat 84 and is finally folded onto the front leg 11; when the seat assembly 8 needs to be unfolded, the sixth restoring member 96 pushes the engaging member 854 to return to the original position, the latching block 8542 is snapped into the first locking position 8521 and the second locking position 8531 again, and the seat assembly 8 is unfolded. The folding process is simple and quick, time-saving and labor-saving, and convenient for user operation.

As shown in fig. 3 and 15, the engaging base 84 is further provided with an operating element 842 which is exposed and can slide relative to the engaging base 84, the upper sleeve 111 is provided with a bayonet 1111, the operating element 842 is provided with a locking portion 8421 which can be engaged with or disengaged from the bayonet 1111, and a seventh reset element 97 is further arranged between the locking portion 8421 and the engaging base 84. When a user needs to take the seat assembly 8 off the vehicle frame, the operating element 842 is pressed to move, the latching part 8421 on the operating element 842 can be disengaged from the latching opening 1111 on the upper suite 111, and the user can pull the seat assembly 8 upwards; when the user needs to connect the seat assembly 8 to the vehicle frame, the operating member 842 is released to move to a proper position, and then the operating member 842 is released, and the operating member 842 is engaged with the bayonet 1111 again under the action of the seventh restoring member 97, so as to connect the seat assembly 8 to the vehicle frame. The operation process is convenient and fast, and the practicability is improved.

Claims (10)

1. The utility model provides a frame convenient to fold which characterized in that: including supporting leg subassembly (1), supporting leg subassembly (1) is including preceding leg (11), preceding leg (11) are gone up fixedly connected with cover and are located last external member (111) on it, preceding leg on sliding connection have external member (112) down, supporting leg subassembly (1) still include with external member (112) down around first axis (A) articulated hind leg (12), hind leg (12) and last external member (111) between be equipped with bracing piece (2), bracing piece (2) one end and hind leg (12) are articulated around second axis (B), bracing piece (2) other end and last external member (111) are articulated around third axis (C), connecting rod (3) under fixedly connected with on external member (112) down, lower connecting rod (3) on be connected with connecting rod (4), last connecting rod (4) upper end be connected with handspike (5), go up connecting rod (4) and down be equipped with between connecting rod (3) and enable the first locking mechanical system (6) of the two locking, handspike (5) on be equipped with the unlocking second locking mechanism (6) and unlocking connection pole (11) and locking mechanism (11) between the two locking mechanism (11) and the wheel locking mechanism (13) that make the front leg (11) and the locking mechanism (12) and the locking mechanism (11) that the front leg (11) all open and keep the locking mechanism (11) down and be equipped with and the locking mechanism (13) .

2. The foldable vehicle frame as claimed in claim 1, wherein: unlocking piece (51) is including locating rotation piece (511) on handspike (5), be equipped with in rotation piece (511) and rotate piece (511) complex movable block (514) when rotating, be equipped with round pin post (5141) on movable block (514), be equipped with on rotation piece (511) and make movable block (514) lateral shifting's guide slot (5111) with round pin post (5141) cooperation when rotating, movable block (514) one end is connected with stay cord (515), stay cord (515) the other end is connected with first locking mechanical system (6).

3. The foldable vehicle frame as claimed in claim 1, wherein: unlocking piece (51) still including establishing shifting block (512) that can make rotation piece (511) locking on handspike (5), be equipped with first piece (91) that resets between shifting block (512) and handspike (5).

4. The foldable vehicle frame as claimed in claim 1, wherein: the lower connecting rod (3) is connected with the upper connecting rod (4) in a sliding manner.

5. The foldable vehicle frame as claimed in claim 1, wherein: first locking mechanical system (6) are including last fixing base (61) of fixed connection on last connecting rod (4), it can be in its inside locking seat (62) that reciprocates and locking piece (63) on its inside lateral shifting to go up to be equipped with in fixing base (61), it is formed with first inclined plane (621) on locking seat (62) to go up, be formed with on locking piece (63) and enable second inclined plane (631) of its motion with first inclined plane (621) cooperation, it can supply first locking hole (64) that locking piece (63) passed through to be equipped with on fixing base (61), be equipped with on connecting rod (3) down and can with second locking hole (65) of locking piece (63) block, it can make the second piece (92) that move down of locking seat (62) to go up to be equipped with between locking seat (62) and last fixing base (61), it can make the third piece (93) that locking piece (63) reset to go up to be equipped with between locking piece (63) and last connecting rod (4).

6. The foldable vehicle frame as claimed in claim 1, wherein: second locking mechanical system (7) are including lower fixing base (71) of fixed connection in lower connecting rod (3) and can be in lower connecting rod (3) lower locking seat (72) that reciprocate, be equipped with lower locking piece (73) that can be in lower fixing base (71) inside lateral shifting in lower locking seat (72), be formed with third inclined plane (721) down on locking seat (72), be formed with fourth inclined plane (731) that can move with third inclined plane (721) cooperation down on locking piece (73), be equipped with third locking hole (31) that can supply lower locking piece (73) to pass down on lower connecting rod (3), be equipped with fourth locking hole (121) that can with lower locking piece (73) block on preceding leg (11), be equipped with between lower fixing base (71) and lower locking seat (72) and enable lower locking seat (72) upward movement's fourth reset piece (94), be equipped with down between lower locking piece (73) and the lower locking seat (72) and enable the fifth reset piece (95) of lower locking piece (73).

7. The foldable frame as claimed in claim 1, wherein: be equipped with seat subassembly (8) that can connect to on supreme external member (111) on the frame, seat subassembly (8) are including seat board (81), it is connected with handrail (82) and back (83) to rotate on seat board (81), seat subassembly (8) are still including joint seat (84) that can be connected to on the frame, be equipped with between joint seat (84) and back (83) and enable seat subassembly (8) and keep locking subassembly (85) of expansion state.

8. The foldable vehicle frame as claimed in claim 7, wherein: locking Assembly (85) is including locating first connecting portion (851) on back (83), first connecting portion (851) one side is rotated and is connected with second connecting portion (852) of locating on seat board (81), second connecting portion (852) one side is equipped with joint piece (853) of connecting on handrail (82), be equipped with between back (83), seat board (81), handrail (82) and joint seat (84) can with second connecting portion (852), joint piece (853) and joint seat (84) fastener (854) of block.

9. The foldable vehicle frame as claimed in claim 8, wherein: be equipped with on first connecting portion (851) and enable fifth inclined plane (8511) of fastener (854) lateral shifting when back (83) rotate, be equipped with on fastener (854) and make sixth inclined plane (8541) of its motion with fifth inclined plane (8511) cooperation, be equipped with between fastener (854) and joint seat (84) and enable the sixth piece (96) that resets of fastener (854) reseing, still be equipped with on fastener (854) and can with second connecting portion (852), joint piece (853) and joint seat (84) fixture block (8542) of block, be equipped with on second connecting portion (852) and fixture block (8542) the first lock location (8521) of block (8542) block, be equipped with on joint piece (853) and can with the second lock location (8531) of fixture block (8542) block, be equipped with on joint seat (84) and make the third lock location (841) that fixture block (8542) block was gone into after the unblock.

10. The foldable frame as claimed in claim 7, wherein: still be equipped with on joint seat (84) exposed and can be relative its gliding operating parts (842), be equipped with bayonet socket (1111) on going up external member (111), operating parts (842) on be equipped with can with bayonet socket (1111) block or the latch portion (8421) that breaks away from, latch portion (8421) and joint seat (84) between still be equipped with seventh piece (97) that resets.

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