TWI606947B - Safety stroller with foldable frame - Google Patents

Description

Safety stroller foldable frame

The invention relates to a stroller, in particular to a safety stroller foldable frame.

Referring to FIG. 1 to FIG. 3, the three-wheeled trolley 1 of the 89205444 includes a front frame 10, a rear frame 11, a push handle 12, two linkage bars 13, two coupling seats 14, two coupling seats 15, and two driving The rod 16, the two hooks 17, the two springs 18 and the two operating handles 19, the front frame 10, the rear frame 11, the pusher 12 and the two interlocking rods 13 together form a frame.

The two linkage rods 13 are respectively installed between the two front frame rods 101 of the front frame 10 and the two rear frame rods 111 of the rear frame 11, and the two joint bases 14 are respectively mounted on the top of the two front frame rods 101. Each of the joints 14 has a concave end surface 141 away from the front frame 101, two pivot blocks 142 extending from the concave end surface 141, and two latches 143 fixed between the two pivot blocks 142. The joints 15 are respectively installed between the bottoms of the two side rails 121 of the push handle 12 and the two rear frame rods 111. Each of the joint seats 15 has a convex arc end surface 151 which can be engaged with the concave arc end surface 141. A receiving groove 152 for inserting the two pivot blocks 141 and a pivot rod 153 disposed between the joint block 15 and the two pivot blocks 141 are disposed from the convex arc end surface 151 toward the side frame rod 121. The two driving rods 16 are respectively movably mounted in the two side frame rods 121. The two hooks 17 are respectively coupled by the two driving rods 16, and each of the hooks 17 extends into the two pivot blocks 142 of the connecting seat 14. Between the two driving rods 16 and the two locking hooks 17 , the two springs 18 are respectively locked between the two driving pins 16 and the two locking hooks 17 . Groove 171 is provided with a constant tendency of the latching detent 143, which respectively form two operating knob 19 movably mounted on the outer sides of the rack bar 121, and may drive the second drive shaft 16.

Although the three-wheeled trolley 1 can be relatively rotated by the two connecting seats 14 and the two engaging seats 15, the frame can be unfolded or folded, thereby generating the effect of being convenient to carry and fold without occupying space, but still The following problems exist:

1. Since the two pivot blocks 142 of the joint seat 14 are placed in the receiving groove 152 of the joint seat 15, and the joint between the joint seat 15 and the joint seat 14 is open, so during the unfolding process, When the user's hand is inadvertently placed at the pivotal joint of the joint seat 15 and the joint seat 14, the finger is easily caught in the gap between the joint seat 15 and the two pivot blocks 142, or is sandwiched between Between the convex arc end surface 151 and the concave arc end surface 141, the finger is pinched and the safety is poor.

2. The user must operate the two operating handles 19 synchronously with both hands to drive the two hooks 17 to release the two card slots 171 from the two latching pins 143 to generate an unlocking action, which is inconvenient to use.

The driving rod 16 is mounted in the side frame 121 and has an interlocking relationship with the operating handle 19 and the hook 17. The long hole 161 is disposed in the engaging seat by a locking member 162. 15. The driving rod 16 can be stably moved between the side frame 121 and the long hole 161, and has the problems of complicated overall structure, inconvenient assembly, time-consuming assembly, and high production cost.

In addition, the joints and joints of the cases of No. 88220560, No. 89205443, No. 89220203, and No. 90223530 are the same as the joint structure of the joint 15 and the joint 14 of the No. 89205444, and therefore There is a problem with poor security.

Accordingly, it is an object of the present invention to provide a stroller frame that can improve the safety of a stroller that can prevent a finger from being pinched.

Therefore, the safety stroller of the present invention can fold the frame, and comprises a frame unit, a two-joint unit, an operation unit, two linkage units and two locking units.

The frame unit comprises a front wheel frame, a rear wheel frame, a hand push frame and two links, the front wheel frame has two front frame bars, the rear wheel frame has two rear frame bars, and the hand push frame has two side frame bars And a hand push rod connecting the two side frame rods, the two side frame rods are respectively connected to the tops of the two front frame rods, and are pivotally connected to the tops of the two rear frame rods, and the two links are respectively pivotally connected thereto Between the middle of the two front masts and the middle of the two rear masts.

The two joint units are respectively installed between the top of the two front frame rods and the bottom of the two side frame rods, each joint unit is a closed structure, and includes a joint seat fixed on the top of the corresponding front frame rod, and a joint seat fixed to the bottom of the corresponding side frame rod and coupled to the joint seat and rotatable relative to each other, the joint seat having a first sleeve fixed to the top of the front frame rod, a first cover formed in a direction away from the front frame rod, a first ring formed on a circumference of the first cover plate, and a first sleeve formed on the first sleeve and the first circle a first concave curved surface of the ring intersection, the joint seat has a second sleeve fixed to the bottom of the side frame rod, and a second cover plate formed from the second sleeve toward the direction away from the side frame rod, a second ring formed on the periphery of the second cover and contacting the first ring and facing the first concave arc, and a second ring formed with the second ring a second concave curved surface that interfaces and interfaces with the first ring.

The operating unit is mounted on the hand push rod and includes a first housing and a second housing that are coupled to each other and cooperate to form a chamber, the first direction of being adjacent to or away from the hand push rod a driving seat movably mounted between the first housing and the second housing, and a safety stop mounted to the driving base in a second direction perpendicular to the first direction, the safety block The drive base has an operating block that is exposed outside the housing, and the safety stop is movable between a blocking position and a non-blocking position relative to the first housing.

The two interlocking unit is installed between the operating unit and the push frame, and each of the linking units includes a swinging block mounted on the first casing and extending into the hand push rod and driven by the driving base to generate a swing. And a traction line in the corresponding side frame rod, the traction line has a first linkage connected to the swing block, and a second linkage passing through the hand push rod and passing through the bottom of the corresponding side frame rod unit.

The two locking units are respectively mounted in the two joint units, and each of the locking units includes a hook that is mounted on the corresponding connecting seat and can be swung by the corresponding second linking portion, and is fixed to the connecting seat. a latching pin, and an elastic member mounted on the pulling wire, the hook hook swings between a latching position and an unlocking position relative to the bayonet, the elastic member causing the hook to have a constant orientation The tendency of the lock position to swing.

The utility model has the advantages that the joint unit has a closed structure by the cooperation of the joint seat and the joint seat, and no gap is formed between the joint seat and the joint seat, and there is no gap between the two. The user's finger is effectively prevented from being pinched, and the lock unit and the safety block can form two safety locks, so that the safety of use of the present invention can be improved.

The present invention will be described in detail below with reference to the drawings and embodiments. Before the present invention is described in detail, the relative positional terms used in the following description, such as "first direction X", "second direction Y", should be noted. The orientation is based on the orientation shown in each figure, and the first direction X is a direction approaching or away from the one-hand push rod 232, and the second direction Y and the first direction X are perpendicular to each other.

Referring to FIG. 4, FIG. 6, FIG. 10, an embodiment of the safety stroller foldable frame of the present invention comprises a frame unit 2, a two-joint unit 3, an operating unit 5, two linkage units 6 and two. The locking unit 7.

The frame unit 2 includes a front wheel frame 21, a rear wheel frame 22, a hand push frame 23 and two two links 24, the front wheel frame 21 is U-shaped and has two front frame bars 211, and the rear wheel frame 22 is also U-shaped and having two rear frame rods 221, the hand push frame 23 is an inverted U-shaped inner hollow tube, and has two side frame rods 231 and the hand push rod 232 connecting the two side frame rods 231, and An elongated hole 233 extending from the hand push rod 232 toward the two side frame rods 231, the two side frame rods 231 are respectively connected to the top of the two front frame rods 211, and the top pivot of the two rear frame rods 221 The two connecting rods 24 are respectively pivotally connected between the middle portion of the two front frame rods 211 and the middle portion of the two rear frame rods 221, thereby forming a link mechanism and being interlocked with each other.

Referring to FIG. 4 and FIG. 9 to FIG. 11 , the two joint units 3 are respectively installed between the top of the two front frame rods 211 and the bottom of the two side frame rods 231 , and each joint unit 3 is a closed structure and includes a A joint seat 30 fixed to the top of the corresponding front frame rod 211, and a joint seat 40 fixed to the bottom of the corresponding side frame rod 231 and coupled to the joint seat 30 and rotatable relative to each other.

The connecting seat 30 has a first sleeve 31 fixed to the top of the front frame 211, and a first cover 32 formed from the first sleeve 31 in a direction away from the front frame 211. a first ring 33 of the periphery of the first cover 32, a first concave curved surface 34 formed on the first sleeve 31 and intersecting the first ring 33, and a first cover disposed on the first cover The insert block 35 of 32 has a slot 351.

The joint 40 has a second sleeve 41 fixed to the bottom of the side frame 231, and a second cover 42 formed from the second sleeve 41 in a direction away from the side frame 231. a second ring 43 that is adjacent to the first ring 33 and abuts the first concave curved surface 34, and is formed on the second sleeve 41 and the second ring 43. A second concave curved surface 44 that interfaces with the first ring 33 and a second cover 42 for inserting the slot 351 shaft 45.

Referring to FIG. 4 to FIG. 8 , the operating unit 5 is mounted on the hand push rod 232 and aligned with the long hole 233 , and includes a first housing 51 , a second housing 52 , a driving seat 53 and a safety gear . Block 54. The first housing 51 and the second housing 52 abut each other and cooperate to form a chamber 55.

The first housing 51 has a first sleeve block 511 fixed to the outside of the hand push rod 232 and semicircular, and a bearing block extending from the first sleeve block 511 along the first direction X 512, two pivot posts 513 and a plug 514 formed in the second direction Y of the carrier block 512, and two first half slots 515 disposed in the first direction X of the carrier block 512.

The second housing 52 has a second sleeve 521 fixed to the outside of the hand push rod 232 and semicircular, and a cover extending from the second sleeve 521 along the first direction X The block 522 is disposed on the cover block 522 and sleeves the two sets of rings 523 that are coupled to the two pivot posts 513. The cover block 522 is disposed on the cover block 522 and the post 524 that is coupled to the insert sleeve 514 is inserted. The second half-shaped groove 525 extending along the first direction X, the two first half-shaped grooves 515 and the two second half-shaped grooves 525 are combined with each other to form a second guide that communicates with the chamber 55. Slot 56.

The driving base 53 is mounted between the first housing 51 and the second housing 52 and linearly movable along the first direction X, and has an operating block 531 exposing the outside of the housing 55, along the first A direction X is disposed in the receiving slot 532 of the operating block 531, and the second guiding block 533 is disposed in the operating block 531 and located in the two guiding slots 56. a second pushing block 535 disposed in the operating block 531 and communicating with the receiving slot 532, and a second pushing block 535 disposed in the receiving block 531 along the first direction X and located in the receiving slot 532. The engagement of the guide groove 56 with the two guide blocks 533 allows the drive base 53 to move linearly in the first direction X stably and smoothly.

The safety block 54 has a head portion 541 located in the receiving groove 532, and a body portion 542 extending from the head portion 541 and penetrating the hole 534. The body portion 542 can extend or retract into the body portion 542. A perforation 534 is movable along the second direction Y between a blocking position relative to the first housing 51 (see FIG. 8) and a non-blocking position (see FIG. 13).

The two interlocking units 6 are respectively installed between the driving base 53 and the two joint unit 3, and each of the linking units 6 includes a swinging block 61 and a pulling line 62.

The swinging block 61 is substantially L-shaped, and has a pivoting portion 611 rotatably disposed outside the pivot post 513 of the first housing 51, and is placed in the receiving groove 532 of the driving base 53 and abutted therein. The pushed portion 612 of the pushing block 535 and a moving portion 613 extending from the pushed portion 612 through the long hole 233 of the hand push rod 232 enter the hand push rod 232.

Referring to FIG. 6 , FIG. 7 and FIG. 10 , the pull wire 62 has a first linking portion 621 connected to the actuating portion 613 , and a penetrating rod 232 passing through the bottom of the side frame rod 231 . In the second interlocking portion 622, in the embodiment, the first linking portion 621 and the second linking portion 622 are both cylindrical.

Referring to FIG. 9 to FIG. 12 , the two locking units 7 are respectively mounted in the two joint units 3 , and each of the locking units 7 includes a fixing pin 71 , a hook 72 , a locking pin 73 , and a stopping end cover . 74 and an elastic member 75.

The fixing pin 71 is mounted and fixed between the first cover 32 and the second cover 42.

The hook 72 is mounted on the corresponding connecting seat 30 and can be swung by the corresponding second linking portion 622. The hook 72 has a set of pivot blocks 721 disposed on the fixing pin 71, and one of the pivot blocks 721. a blocking block 722 in the opposite direction, a pulling block 723 located between the pivot block 721 and the hook block 722, a receiving hole 724 disposed in the pulling block 723 for the second linking portion 622, and a receiving hole 724 The first slot 725 is disposed in the pulling block 723 and communicates with the receiving hole 724 for the pulling wire 62 to pass.

The latching pin 73 is fixed to the inserting block 35 and parallel with the fixing pin 71. The hooking block 722 of the latching hook 72 can be in a locked position relative to the latching pin 73 (see FIG. 12) and an unlocking position ( See Figure 15) for swinging between.

The stop end cover 74 is mounted on the bottom of the side frame bar 231 and has a concave arc bottom 741 located outside the swinging track of the pivot block 721, a limiting slot 742 disposed on the concave arc bottom portion 741, and a A second slot 743 through which the pull wire 62 passes.

The elastic member 75 is disposed outside the pulling wire 62 and is restrained between the second linking portion 622 and the limiting groove 742 of the stopping end cover 741, so that the hook 72 has a constant orientation toward the locking position. In the embodiment, the elastic member 75 is a compression spring.

Referring to FIG. 4, FIG. 7, FIG. 8, FIG. 12, when the frame unit 2 is in the unfolded state, the hook block 722 of the hook 72 hooks the bayonet 73 to be in the latching position, so that the joint 40 is It is impossible to rotate relative to the joint 30, and the actuating portions 613 of the two swinging blocks 61 are located away from each other and are located close to the side frame rod 231. The safety stop 54 is located at the blocking position, at this time, because the safety stop 54 is The body portion 542 is extended by the first housing 51, so that the operating block 531 of the driving base 53 cannot be pushed in the first direction X toward the hand push rod 232. The above are two of the present inventions. Road safety lock design.

Referring to FIGS. 13-16, in order to fold the frame unit 2, the operator must first press the body 542 of the safety stop 54 to move the safety stop 54 in the direction of the second housing 52, and The body 542 is retracted into the through hole 534 to be in the non-blocking position, and then the operator can push the operation block 531 of the driving base 53 toward the hand push rod 232 by the second pushing of the driving seat 53. The block 535 pushes the pushed portion 612 of the two swinging blocks 61 to swing the two swinging blocks 61 with the two pivots 513 as a fulcrum, and the actuating portions 613 of the two swinging blocks 61 are close to each other, thereby being located away from the The position of the side frame rod 231 is driven by the two actuating portions 613 to synchronously move the first linking portion 621 of the two traction wires 62, so that the two second linking portions 622 pull the two hook portions 72 to the two fixing pins 71. The fulcrum swings, so that the two hook blocks 722 are disengaged from the two latching pins 73 and are located at the unlocked position, and then the operator only needs to apply force to push the hand push rod 232 toward the front frame rod 21, and then Rotating the two joints 40 relative to the two joints 30, thereby folding the frame Unit 2, at this time, because the two second interlocking portion 622 and the distance between the bottom of the arc of the recess 741 becomes smaller, so that the two elastic member 75 is compressed to have an elastic force responses.

Referring to FIG. 16, FIG. 12, FIG. 7, and FIG. 4, in order to deploy the frame unit 2, the operator only needs to apply force to pull the hand push rod 232 away from the front frame rod 21, so that the two joints can be made. The two latches 72 are pivoted by the resilience of the two elastic members 75 until the two hooks 722 are again hooked to the latching tabs at the latching position. And the two traction lines 62 move synchronously, and the two first oscillating portions 621 drive the two swinging blocks 61 to swing, so that the two operating portions 613 are apart from each other, thereby completing the unfolding operation of the frame unit 2, and The pushed portion 612 of the second swinging block 61 pushes the driving base 53 away from the hand push rod 232, so that the operating block 531 of the driving base 53 automatically slides out of the housing 55, the body of the safety stop 54 542 also automatically extends the perforation 534 to be in the blocking position.

In summary, the safety stroller of the present invention can be folded into a folding frame and has the following advantages and advantages, so that the object of the present invention can be achieved.

The joint unit 3 of the present invention has a closed structure by the engagement of the joint seat 30 and the joint seat 40. No matter whether the joint seat 40 is rotated at any angle with respect to the joint seat 30, there is no The gap can effectively prevent the user's fingers from being pinched and can improve the safety of use.

2. The present invention can form two safety locks by the locking unit 7 and the safety stop 54, which can prevent the operation block 531 from being unlocked after being mistakenly pressed, thereby improving the safety of use.

3. The user only needs to press the safety stop 54 with one hand and then push the operation block 531 to generate an unlocking action, which is convenient to use.

4. The present invention can make the swinging block 61 and the hook 72 interlock by the pulling line 62, the overall structure is simple, the assembly is convenient and time-saving, and the production cost can be reduced.

5. In the present invention, only the actuating portion 613 of the swinging block 61 and the pulling wire 62 are located in the hand push rod 231 and the side frame bar 232, and the pulling wire 62 is not affected by the hand push rod 231 and the side frame. The shape of the rod 232 is limited in bending variation, and the assembly is convenient and time-saving.

However, the above is only the embodiment of the present invention, and the scope of the invention is not limited thereto, and all the equivalent equivalent changes and modifications according to the scope of the patent application and the patent specification of the present invention are still The scope of the invention is covered.

2‧‧‧ frame unit

21‧‧‧ front wheel frame

211‧‧‧ front pole

22‧‧‧ Rear wheel frame

221‧‧‧ rear pole

23‧‧‧Hand push frame

231‧‧‧ side rail

232‧‧‧Hand putter

233‧‧‧ long hole

24‧‧‧ Connecting rod

3‧‧‧ joint unit

30‧‧‧links

31‧‧‧First sleeve

32‧‧‧First cover

33‧‧‧ first ring

34‧‧‧First concave curved surface

35‧‧‧ insert block

351‧‧‧ slots

40‧‧‧ joint seat

41‧‧‧Second sleeve

42‧‧‧second cover

43‧‧‧second ring

44‧‧‧second concave curved surface

45‧‧‧ shaft

5‧‧‧Operating unit

51‧‧‧First housing

511‧‧‧First set of blocks

512‧‧‧bearing block

513‧‧‧ pivot

514‧‧‧Incision

515‧‧‧ first half slot

52‧‧‧ second housing

521‧‧‧Second set of blocks

522‧‧‧ Covering block

523‧‧‧ collar

524‧‧‧Plunting column

525‧‧‧Second half slot

53‧‧‧Drive seat

531‧‧‧Operation block

532‧‧‧ accommodating slots

533‧‧‧ Guide block

534‧‧‧Perforation

535‧‧‧ push block

54‧‧‧Safety stop

541‧‧‧ head

542‧‧‧ Body

55‧‧ ‧ room

56‧‧‧Guide

6‧‧‧ linkage unit

61‧‧‧Swing block

611‧‧‧ pivot

612‧‧‧Pushing Department

613‧‧‧Operation Department

62‧‧‧ traction line

621‧‧‧First Linkage Department

622‧‧‧Second Linkage

7‧‧‧Lock unit

71‧‧‧fixed pin

72‧‧‧ card hook

721‧‧‧Block

722‧‧‧Hook block

723‧‧‧ Pulling block

724‧‧‧ accommodating holes

725‧‧‧ first slot

73‧‧‧Karts

74‧‧‧stop end cap

741‧‧‧ concave arc bottom

742‧‧‧Limited slot

743‧‧‧Second slotting

75‧‧‧Flexible parts

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: Figure 1 is a perspective view of the number 89205444; Figure 2 is a partial exploded view of the case of No. 89205444; FIG. 4 is a perspective view showing an embodiment of the safe folding stroller frame of the present invention, showing a state in which it is in an unfolded state; FIG. 5 is an embodiment of the embodiment. FIG. An incomplete partial exploded view showing an operating unit; FIG. 6 is an incomplete partial exploded view of the embodiment showing the operating unit and the two linked units; FIG. 7 is a line taken from FIG. VII-VII is a cross-sectional view showing that the actuating portions of the two swinging blocks of the two interlocking units are located away from each other; FIG. 8 is a cross-sectional view taken from line VIII-VIII in FIG. 4, showing a safety stop relative to a first A housing is in a blocking position, and an operating block of a driving base is in a state outside the housing; FIG. 9 is an incomplete partial exploded view of the embodiment, showing a joint unit and a locking unit; 10 is the real An incomplete partial exploded view of the embodiment shows the joint unit and the latch unit; FIG. 11 is an incomplete partial exploded view of the embodiment showing the joint unit and the lock unit; Is a cross-sectional view taken from line XII-XII in FIG. 4, showing a hook of the latch unit in a latched position; FIG. 13 is a view similar to FIG. 8 showing the safety stop relative to the first The housing is in a non-blocking position, and the operation block is pushed into the chamber; FIG. 14 is a view similar to FIG. 7, showing that the actuation portions of the two swing blocks are located close to each other; FIG. Figure 12 is a view showing the hook in an unlocked position; and Figure 16 is a perspective view of the embodiment in a folded state.

2‧‧‧ frame unit

21‧‧‧ front wheel frame

211‧‧‧ front pole

22‧‧‧ Rear wheel frame

221‧‧‧ rear pole

23‧‧‧Hand push frame

231‧‧‧ side rail

232‧‧‧Hand putter

24‧‧‧ Connecting rod

3‧‧‧ joint unit

30‧‧‧links

40‧‧‧ joint seat

5‧‧‧Operating unit

Claims (10)

A safety stroller foldable frame comprises: a frame unit comprising a front wheel frame, a rear wheel frame, a hand push frame and two links, the front wheel frame having two front frame bars, the rear wheel The rack has two rear masts, the push rack has two side rails and a hand push rod connecting the two side rails, the two side rails are respectively connected to the top of the two front masts, and the two rear brackets The top of the pole is pivotally connected, and the two links are respectively pivoted between the middle of the two front masts and the middle of the two rear masts; the two joint units are respectively mounted on the top of the two front masts and the second Between the bottoms of the side frame rods, each joint unit is a closed structure, and includes a joint seat fixed on the top of the corresponding front frame rod, and a bottom portion corresponding to the corresponding side frame rod and is matched with the joint seat a joint that is coupled to and rotatable relative to each other, the joint having a first sleeve secured to the top of the front rail, and a first cover formed from the first sleeve in a direction away from the front mast a first annular ring formed on a periphery of the first cover, and a first sleeve formed on the first sleeve a first concave curved surface of the ring intersection, the joint seat has a second sleeve fixed to the bottom of the side frame rod, and a second cover plate formed from the second sleeve toward the direction away from the side frame rod a second ring formed on the periphery of the second cover and contacting the first ring and facing the first concave arc, and a second sleeve formed on the second sleeve and the second circle a second concave arc surface intersecting and abutting the first annular ring; an operating unit mounted on the hand push rod and including a first housing and a second housing that are butted to each other and cooperate to form a chamber a first body that is movably mounted in the first direction near or away from the hand pusher a driving seat between the housing and the second housing, and a safety stop mounted to the driving base in a second direction perpendicular to the first direction, the driving seat having an exposed capacity An outdoor operating block movable between a blocking position and a non-blocking position relative to the first housing; a two-linking unit mounted between the operating unit and the hand-pushing frame, each The linkage unit includes a swinging block mounted to the first housing and extending into the hand push rod and drivable by the driving base to generate a swing, and a traction line located in the corresponding side frame rod, the traction line having a connection a first linking portion of the swinging block, and a second linking portion that passes through the hand push rod and passes through the bottom of the corresponding side frame bar; and two locking units are respectively installed in the two joint units, each The locking unit includes a hook mounted on the corresponding connecting seat and oscillated by the corresponding second linking portion, a latch fixed in the connecting seat, and an elastic member mounted on the pulling line. The hook can be in a latched position relative to the bayonet Pivot between an unlocked position, the resilient member so that the hook includes a latching position of the swing trend constant orientation. The safety stroller foldable frame according to claim 1, wherein the joint further has an insert disposed on the first cover, the insert having a slot, the joint also having a socket There is a rotating shaft disposed on the second cover, and the rotating shaft is inserted into the slot. The safety stroller foldable frame according to claim 1, wherein the first housing of the operating unit has a first set of blocks disposed outside the hand push rod, a set of carrier blocks extending along the first direction, and a second first half-shaped groove extending along the first direction of the carrier block, the second housing having a second set of blocks disposed outside the hand push rod, one from the second set block a cover block extending in the first direction, and two second semi-shaped grooves extending in the first direction of the cover block, the two first half-shaped grooves and the second half-shaped grooves cooperate to form a second guide The driving base has an operating block exposed outside the housing, and two guiding blocks disposed in the operating block and located in the two guiding slots. The safety stroller foldable frame according to claim 3, wherein the drive base further has a receiving slot disposed in the first direction in the operating block for the two swinging blocks to be placed, and a through hole disposed in the second direction and communicating with the accommodating groove, the safety block having a head located in the accommodating groove, and a portion extending from the head and penetrating the through hole The body can extend or retract into the perforation and can move between the blocked position relative to the first housing and the non-blocking position. The safety stroller foldable frame according to claim 4, wherein the first housing further has two pivot posts disposed in the second direction of the carrier block, the second housing further The utility model has two sets of rings disposed on the cover block and sleeved to the two pivot posts, the drive block further having two push blocks disposed in the first direction and located in the receiving groove, the swing block Having a sleeve portion disposed outside the corresponding pivot post, a push portion disposed in the receiving groove of the drive seat and abutting the corresponding push block, and extending from the pushed portion into the hand push An actuator connected to the corresponding first interlocking portion in the rod. The safety stroller foldable frame according to claim 1, wherein the lock unit further comprises a first cover plate and the second cover plate installed between the first cover plate and the second cover plate. a fixing pin, the locking pin is parallel to the fixing pin, the hook has a set of pivot blocks disposed on the fixing pin, a hook block located in an opposite direction of the pivot block, and a hook block and the hook block And a pulling block connected to the corresponding second linking portion, the hook block swinging between the locking position and the unlocking position with respect to the bayonet. The safety stroller foldable frame according to claim 6, wherein the first linking portion of the pulling line is a cylinder connected to the corresponding swinging block, and the second linking portion is connected to the corresponding moving portion. a cylinder of the block, the hook further has a receiving hole disposed in the pulling block for the second linking portion, and a first opening disposed on the pulling block and communicating the receiving hole for the pulling line to pass groove. The safety stroller foldable frame according to claim 7, wherein the lock unit further comprises a stop end cover mounted on a bottom of the corresponding side frame rod, the stop end cover having a a concave arc bottom outside the swinging track of the pivot block, a limiting groove disposed at the bottom of the concave arc, and a second slot for the traction wire to pass through. The safety stroller foldable frame according to claim 8, wherein the elastic member is sleeved outside the traction line and is limited to the limit of the second linking portion and the blocking end cover. Between the slots. The safety stroller foldable frame according to claim 9, wherein the swing block has a sleeve portion disposed on the first housing, and a pushed portion driven by the drive seat And an actuating portion extending from the pushed portion into the hand push rod and connected to the corresponding first linking portion.