Baby carriage with seat capable of being folded along with frame

Abstract

The utility model discloses a baby carriage with a seat capable of being folded along with a carriage frame, which comprises the foldable carriage frame and the foldable seat, and the carriage frame comprises a first support rod and a second support rod; the seat is arranged between the first supporting rod and the second supporting rod, a connecting assembly connected with the first supporting rod is arranged at the bottom of the seat, and the seat is located above the second supporting rod and is lapped on the second supporting rod; the bottom, close to the front side of the seat, of the seat is connected with the first supporting rod through the connecting assembly, the seat is lapped on the second supporting rod, when the frame needs to be folded, the distance between the first supporting rod and the second supporting rod can be changed, and folding can be achieved without detaching the seat from the first supporting rod; the operation is convenient; in addition, the bottom, close to the front side of the seat, of the seat is connected with the first supporting rod through a connecting assembly, so that the stability of seat connection can be guaranteed, and the risk that the seat tilts forwards and falls down due to the fact that the passenger sits too forward is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of baby carriages, in particular to a baby carriage with a seat that can be folded along with a frame. Background Art

[0002] Strollers are important travel tools for infants and young children. Removable seats are usually detachably connected to two support rods on the stroller frame. In order to ensure the stability of the seat, the two support rods must be spaced a certain distance apart. Therefore, the two support rods are installed on different components of the frame, which will cause the distance between the two support rods to change as the frame is folded, which brings difficulties to the connection between the seat and the frame. When the stroller needs to be folded, the seat is usually removed from the frame and then the frame is folded, which brings inconvenience to folding. Utility Model Content

[0003] In response to the technical problem mentioned above that in the prior art strollers with detachable seats, when folding, the seat needs to be removed from the frame before the frame can be folded, which is a rather cumbersome operation, the present invention solves the technical problem by adopting a technical solution: a stroller with a seat that can be folded along with the frame, comprising: a foldable frame and a foldable seat, the frame comprising: a first support rod and a second support rod; the seat is arranged between the first support rod and the second support rod, a connecting assembly connected to the first support rod is provided at the bottom of the seat and near the front side of the seat, and the seat is located above the second support rod and rests on the second support rod.

[0004] In the baby stroller with a seat foldable along with the frame as described above, the connecting assembly is detachably connected to the first support rod, so that the seat can be removed from the frame.

[0005] The baby stroller as described above has a seat that can be folded along with the frame, and the connecting assembly includes: a connecting seat, a locking block and a locking elastic member, the connecting seat is arranged at the bottom of the seat, the connecting seat is provided with a first positioning groove for positioning the first support rod, the locking block is slidably connected to the connecting seat, the locking elastic member is arranged on the connecting seat and is used to drive the locking block to extend to lock the first support rod in the first positioning groove, and the locking block is provided with an unlocking part for driving the locking block to retract into the connecting seat to unlock the first support rod.

[0006] In the baby stroller with a seat foldable along with the frame as described above, second positioning grooves for positioning the first support rod are respectively provided at the bottom of the seat and on both sides of the connecting assembly.

[0007] In the baby carriage with a seat foldable along with the frame as described above, the bottoms of the first positioning groove and the second positioning groove are arc-shaped.

[0008] As described above, a baby stroller with a seat that can be folded along with the frame is provided with a first backrest rod and a second backrest rod at the rear of the seat, the lower end of the first backrest rod is rotatably connected to the seat, and the first backrest rod and the second backrest rod are connected by a folding joint.

[0009] In the baby carriage with a foldable seat along with the frame, footrests are pivotally connected to both sides of the front portion of the seat, and an adjustment mechanism for adjusting the angle of the footrest relative to the seat is provided between the seat and the footrest.

[0010] The baby stroller as described above can be folded with the frame, and the adjustment mechanism includes: a first locking groove arranged on the seat, a locking slider slidably connected in the first locking groove and capable of slidably sliding in the first locking groove, a first positioning protrusion being provided in the first locking groove, a sliding groove cooperating with the first positioning protrusion being provided on the locking slider, a locking protrusion being provided on the locking slider, and a locking recess for the locking protrusion to be embedded in the locking recess being provided in the foot pedal, a reset elastic member being provided between the first locking groove and the locking slider for driving the locking protrusion on the locking slider to engage in the locking recess, and an unlocking button being provided on the foot pedal for driving the locking slider to slide along the sliding groove to achieve unlocking.

[0011] The stroller as described above is a stroller with a seat that can be folded along with the stroller frame. The stroller frame comprises: a front leg, a front wheel assembly, a rear leg, a rear wheel assembly, an intermediate link, a hand push rod, a first linkage rod and a second linkage rod. The front wheel assembly is arranged at the lower end of the front leg, and the rear wheel assembly is arranged at the lower end of the rear leg. One end of the front leg is pivotally connected to the rear leg, and one end of the intermediate link is pivotally connected to the rear leg. The lower end of the hand push rod is pivotally connected to the other end of the intermediate link, one end of the first linkage rod is hinged to the front leg, the other end of the first linkage rod is hinged to the lower end of the second linkage rod, the lower part of the second linkage rod is hinged to the rear leg, and the upper end of the second linkage rod is hinged to the hand push rod, so that when the hand push rod is driven to fold relative to the intermediate link, the intermediate link and the front leg can be driven to rotate relative to the rear leg to achieve folding. The first support rod is arranged on the intermediate link, and the second support rod is arranged on the second linkage rod. A frame locking assembly for locking the relative position between the intermediate link and the hand push rod when the frame is unfolded is provided between the intermediate link and the hand push rod.

[0012] The above-mentioned baby carriage with a seat that can be folded along with the frame, the frame locking assembly includes: an upper locking joint, a lower locking joint, a locking switching block, a reset piece, a rotation unlocking block, a fourth unlocking pull line and an unlocking switch, the upper locking joint is connected to the lower end of the hand push rod, the lower locking joint is connected to the upper end of the middle connecting rod, the upper locking joint and the lower locking joint are rotatably connected, the upper locking joint is provided with a first accommodating cavity, the lower locking joint is provided with a second accommodating cavity, the locking switching block can slide axially between the first accommodating cavity and the second accommodating cavity, the locking switching block is provided with a locking ridge, the first accommodating cavity A first locking groove is provided inside the housing to cooperate with the locking ridge, and a second locking groove is provided inside the second accommodating chamber to cooperate with the locking ridge. The reset member is arranged in the second accommodating chamber to make the locking ridge on the locking switching block simultaneously engage with the first locking groove and the second locking groove, and the rotation unlocking block rotates in the second accommodating chamber, and a guide slope is provided between the rotation unlocking block and the second accommodating chamber, and when the rotation unlocking block is rotated, the locking ridge on the locking switching block can be pushed out of the first locking groove and unlocked, one end of the inner core of the fourth unlocking wire is connected to the rotation unlocking block, and the other end of the inner core of the fourth unlocking wire is connected to the unlocking switch.

[0013] The beneficial effects of the utility model are:

[0014] 1. The baby stroller of the present invention is connected to the first support rod through a connecting assembly at the bottom of the seat and near the front side of the seat, and the seat is placed on the second support rod. With such a design, when the frame needs to be folded, the distance between the first support rod and the second support rod will change, and folding can be achieved without removing the seat from the first support rod, which has the advantage of easy operation. In addition, the bottom of the seat and near the front side of the seat are connected to the first support rod through the connecting assembly, which can ensure the stability of the seat connection and avoid the risk of the passenger sitting too forward and causing the seat to tilt forward and fall.

[0015] 2. When the connecting assembly is in use, the locking block can be retracted into the connecting seat by toggling the unlocking part, so that the first support rod can be installed in the first positioning groove. After the external force is removed, the locking block is reset under the action of the locking elastic member, thereby locking the first support rod in the first positioning groove. It has the advantages of simple structure and easy operation.

[0016] 3. When the adjustment mechanism is in use, by pressing the unlock button, the locking slider can slide along the slide groove and then completely enter the first locking groove, thereby unlocking the seat and adjusting the angle of the footrest relative to the seat, which has the advantage of easy operation.

[0017] 4、The frame is folded by first releasing the locking relationship between the intermediate connecting rod and the hand pushing rod by the frame locking assembly, then driving the hand pushing rod to fold relative to the intermediate connecting rod, driving the front leg to fold relative to the rear leg, and driving the intermediate connecting rod to fold relative to the rear leg, so that the folding is completed, and the operation is convenient; the first linkage rod and the second linkage rod have two functions, one is to improve the stability and reliability of the whole frame, and the other is to link the intermediate connecting rod, the hand pushing rod and the rear leg during folding, so that the folding is more convenient.

[0018] The utility model will be further described below in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is structure schematic diagram of the child's carriage of the utility model;

[0020] Figure 2 It is structure schematic diagram of the child's carriage of the utility model;

[0021] Figure 3 It is structure schematic diagram of the child's carriage folding state of the utility model;

[0022] Figure 4 It is structure schematic diagram of the seat of the utility model;

[0023] Figure 5 It is structure schematic diagram of the seat of the utility model;

[0024] Figure 6 It is full section schematic diagram of the connecting assembly of the seat of the utility model;

[0025] Figure 7 It is exploded schematic diagram of the connecting assembly of the seat of the utility model;

[0026] Figure 8 It is exploded schematic diagram of the footboard and adjusting mechanism of the seat of the utility model;

[0027] Figure 9 It is exploded schematic diagram of the footboard and adjusting mechanism of the seat of the utility model;

[0028] Figure 10 It is side view structure schematic diagram of the frame in the child's carriage of the utility model;

[0029] Figure 11 It is exploded schematic diagram of the frame in the child's carriage of the utility model;

[0030] Figure 12 It is exploded schematic diagram of the frame locking assembly in the frame of the utility model;

[0031] Figure 13This is the second exploded schematic diagram of the frame locking assembly of the frame in the present invention. DETAILED DESCRIPTION

[0032] The following describes the embodiments of the present invention in detail with reference to the accompanying drawings.

[0033] As 1 to Figure 13 As shown in the figure, a baby stroller with a foldable seat according to the present embodiment comprises a foldable frame 1 and a foldable seat 3. The frame 1 comprises a first support rod 101 and a second support rod 102. The seat 3 is disposed between the first support rod 101 and the second support rod 102. A connecting assembly 31 connected to the first support rod 101 is provided at the bottom of the seat 3, near the front of the seat 3. The seat 3 is located above and rests on the second support rod 102. The baby stroller of the present invention is connected to the first support rod via the connecting assembly at the bottom of the seat, near the front of the seat, and rests on the second support rod. With this design, when the frame needs to be folded, the distance between the first and second support rods changes, and folding can be achieved without removing the seat from the first support rod, which is convenient for operation. In addition, the connection of the seat to the first support rod at the bottom of the seat, near the front of the seat, by the connecting assembly ensures a stable connection, preventing the risk of the passenger sitting too forward and causing the seat to tilt forward and fall.

[0034] In this embodiment, the connecting assembly 31 is detachably connected to the first support rod 101, so that the seat 3 can be removed from the frame 1, making it convenient to clean the seat or replace it with a sleeping basket.

[0035] In this embodiment, the connecting assembly 31 includes: a connecting seat 311, a locking block 312 and a locking elastic member 313. The connecting seat 311 is arranged at the bottom of the seat 3. The connecting seat 311 is provided with a first positioning groove 3110 for positioning the first support rod 101. The locking block 312 is slidably connected to the connecting seat 311. The locking elastic member 313 is provided on the connecting seat 311 and is used to drive the locking block 312 to extend to lock the first support rod 101 in the first positioning groove 3110. The locking block 312 is provided with an unlocking part 3121 for driving the locking block 312 to retract into the connecting seat 311 to unlock the first support rod 101. When in use, the locking block 312 can be retracted into the connecting seat 311 by toggling the unlocking portion 3121, so that the first support rod 101 can be installed in the first positioning groove 3110. After the external force is removed, the locking block 312 is reset under the action of the locking elastic member 313, thereby locking the first support rod 101 in the first positioning groove 3110, which has the advantages of simple structure and easy operation.

[0036] In this embodiment, in order to improve the stability of the direct connection between the seat and the first support rod, second positioning grooves 31100 for positioning the first support rod 101 are provided at the bottom of the seat 3 and on both sides of the connecting component 31.

[0037] In this embodiment, when the frame is folded, in order to enable the seat to rotate relative to the first support rod as needed, the bottoms of the first positioning groove 3110 and the second positioning groove 31100 are arc-shaped.

[0038] In this embodiment, the rear portion of the seat 3 is provided with a first backrest rod 32 and a second backrest rod 33. The lower end of the first backrest rod 32 is rotatably connected to the seat 3. The first backrest rod 32 and the second backrest rod 33 are connected by a folding joint 34. The first backrest rod 32 and the second backrest rod 33 are provided with backrests made of textile material (not shown in the drawings).

[0039] In this embodiment, in order to improve comfort, footrests 35 are pivotally connected on both sides of the front of the seat 3, and an adjustment mechanism 36 for adjusting the angle of the footrest 35 relative to the seat 3 is provided between the seat 3 and the footrest 35, which can improve comfort.

[0040] like Figure 8 and Figure 9 As shown, the adjustment mechanism 36 includes: a first locking groove 3601 provided on the seat 3, a locking slider 361 that can slide axially in the first locking groove 3601 is slidably connected in the first locking groove 3601, a first positioning protrusion 362 is provided in the first locking groove 3601, the locking slider 361 is provided with a sliding groove 3610 that cooperates with the first positioning protrusion 362, the locking slider 361 is provided with a locking protrusion 3611, the footrest 35 is provided with a locking recess 301 for the locking protrusion 3611 to be embedded therein, a reset elastic member 364 is provided between the first locking groove 3601 and the locking slider 361 for driving the locking protrusion 3611 on the locking slider 361 to be stuck in the locking recess 301, and an unlocking button 363 is provided on the footrest 35 for driving the locking slider 361 to slide along the sliding groove 3610 to achieve unlocking. When the adjustment mechanism is in use, by pressing the unlock button 363, the locking slider 361 can slide along the slide groove 3610 and then the locking slider 361 can completely enter the first locking groove 3601 (at this time, the locking protrusion 3611 is no longer embedded in the locking recess 301), so that unlocking can be achieved and the angle of the footrest relative to the seat 3 can be adjusted, which has the advantage of easy operation.

[0041] The frame 1 comprises a front leg 11, a front wheel assembly 111, a rear leg 12, a rear wheel assembly 121, an intermediate connecting rod 13, a hand pushing rod 14, a first linkage rod 15 and a second linkage rod 16, the front wheel assembly 111 is arranged at the lower end of the front leg 11, the rear wheel assembly 121 is arranged at the lower end of the rear leg 12, one end of the front leg 11 is pivoted on the rear leg 12, one end of the intermediate connecting rod 13 is pivoted on the rear leg 12, the lower end of the hand pushing rod 14 is pivoted with the other end of the intermediate connecting rod 13, one end of the first linkage rod 15 is hinged with the front leg 11, the other end of the first linkage rod 15 is hinged with the lower end of the second linkage rod 16, the lower part of the second linkage rod 16 is hinged with the rear leg 12, the upper end of the second linkage rod 16 is hinged with the hand pushing rod 14, so that when the hand pushing rod 14 is driven to fold relative to the intermediate connecting rod 13, the intermediate connecting rod 13 and the front leg 11 can be driven to rotate relative to the rear leg 12 to realize folding, the first supporting rod 101 is arranged on the intermediate connecting rod 13, the second supporting rod 102 is arranged on the second linkage rod 16, and the frame locking assembly 17 for locking the relative position between the intermediate connecting rod 13 and the hand pushing rod 14 after the frame 1 is unfolded is arranged between the intermediate connecting rod 13 and the hand pushing rod 14.

[0042] In this embodiment, the frame locking assembly 17 is used to lock the intermediate connecting rod 13 and the push rod 14 when they are unfolded. The frame locking assembly 17 includes: an upper locking joint 171, a lower locking joint 172, a locking switching block 173, a reset member 174 (which can be a spring), a rotation unlocking block 175, a fourth unlocking pull wire 176 and an unlocking switch 178, wherein the upper locking joint 171 is connected to the lower end of the hand push rod 14, and the lower locking joint 172 is connected to the upper end of the intermediate connecting rod 13, and the upper locking joint 171 and the lower locking joint 172 are rotatably connected, the upper locking joint 171 is provided with a first accommodating cavity 17101, and the lower locking joint 172 is provided with a second accommodating cavity 17201, and the locking switching block 173 can slide axially between the first accommodating cavity 17101 and the second accommodating cavity 17201, and the locking switching block 173 is provided with a locking ridge 1731, and the first accommodating cavity 17101 is provided with a locking ridge 1731. The first locking groove 17102, the second accommodating chamber 17201 is provided with a second locking groove 17202 that cooperates with the locking ridge 1731, the reset member 174 is arranged in the second accommodating chamber 17201 to make the locking ridge 1731 on the locking switching block 173 simultaneously engage in the first locking groove 17102 and the second locking groove 17202, the rotation unlocking block 175 rotates in the second accommodating chamber 17201, and a guide slope 1750 is provided between the rotation unlocking block 175 and the second accommodating chamber 17201, and when the rotation unlocking block 175 is rotated, it can push the locking ridge 1731 on the locking switching block 173 to disengage from the first locking groove 17102 and unlock, one end of the inner core of the fourth unlocking pull wire 176 is connected to the rotation unlocking block 175, and the other end of the inner core of the fourth unlocking pull wire 176 is connected to the unlocking switch 178. When the lock is unlocked, the locking ridge 1731 on the lock switching block 173 is simultaneously engaged with the first locking groove 17102 and the second locking groove 17202, so that the upper lock joint 171 cannot rotate relative to the lower lock joint 172; when unlocking is required, the unlocking switch 178 is pressed, and the unlocking switch 178 drives the inner core of the fourth unlocking pull wire 176 to drive the rotation unlocking block 175 to rotate. When the rotation unlocking block 175 rotates, under the action of the guide inclined surface 1750, the rotation unlocking block 175 can push the locking ridge 1731 on the lock switching block 173 to disengage from the first locking groove 17102, thereby achieving unlocking, and the upper lock joint 171 can rotate relative to the lower lock joint 172; after releasing the force on the unlocking switch 178, the lock switching block 173 is reset under the action of the reset member 174, and locking is achieved again; it has the advantage of convenient unlocking.

[0043] The above examples are merely used to further illustrate the technical content of the present invention for easier understanding by the reader. However, they do not limit the implementation of the present invention to these examples. Any technical extension or reinvention based on the present invention is protected by the present invention. The scope of protection of the present invention shall be determined by the claims.

Claims

1. A baby carriage with a seat that can be folded along with the frame, characterized in that: include: A foldable frame (1), the frame (1) comprising: a first support rod (101) and a second support rod (102); A foldable seat (3) is provided between a first support rod (101) and a second support rod (102); a connecting assembly (31) connected to the first support rod (101) is provided at the bottom of the seat (3) and near the front side of the seat (3); the seat (3) is located above the second support rod (102) and rests on the second support rod (102).

2. A baby stroller with a seat foldable along with the frame according to claim 1, characterized in that: The connecting assembly (31) is detachably connected to the first support rod (101), so that the seat (3) can be removed from the vehicle frame (1).

3. A baby stroller with a seat foldable along with the frame according to claim 2, characterized in that: The connecting assembly (31) comprises: a connecting seat (311), a locking block (312) and a locking elastic member (313); the connecting seat (311) is arranged at the bottom of the seat (3); the connecting seat (311) is provided with a first positioning groove (3110) for positioning the first support rod (101); the locking block (312) is slidably connected to the connecting seat (311); the locking elastic member (313) is arranged on the connecting seat (311) and is used to drive the locking block (312) to extend so as to lock the first support rod (101) in the first positioning groove (3110); the locking block (312) is provided with an unlocking portion (3121) for driving the locking block (312) to retract into the connecting seat (311) to unlock the first support rod (101).

4. A baby stroller with a seat foldable along with the frame according to claim 3, characterized in that: Second positioning grooves (31100) for positioning the first support rod (101) are respectively provided at the bottom of the seat (3) and on both sides of the connecting assembly (31).

5. A baby stroller with a seat foldable along with the frame according to claim 4, characterized in that: The bottoms of the first positioning groove (3110) and the second positioning groove (31100) are arc-shaped.

6. A baby stroller with a seat foldable along with the frame according to claim 1, characterized in that: The rear portion of the seat (3) is provided with a first backrest rod (32) and a second backrest rod (33); the lower end of the first backrest rod (32) is rotatably connected to the seat (3); and the first backrest rod (32) and the second backrest rod (33) are connected via a folding joint (34).

7. A baby stroller with a seat foldable along with the frame according to claim 1, characterized in that: Footrests (35) are pivotally connected to both sides of the front of the seat (3), and an adjustment mechanism (36) for adjusting the angle of the footrest (35) relative to the seat (3) is provided between the seat (3) and the footrest (35).

8. A baby stroller with a seat foldable along with the frame according to claim 7, characterized in that: The adjustment mechanism (36) comprises: a first locking groove (3601) provided on the seat (3); a locking slider (361) slidably connected in the first locking groove (3601) and capable of sliding axially in the first locking groove (3601); a first positioning protrusion (362) provided in the first locking groove (3601); a sliding groove (3610) cooperating with the first positioning protrusion (362) provided on the locking slider (361); and a locking protrusion provided on the locking slider (361). The pedal (35) is provided with a locking recess (301) for the locking protrusion (3611) to be embedded therein, a reset elastic member (364) is provided between the first locking groove (3601) and the locking slider (361) for driving the locking protrusion (3611) on the locking slider (361) to be inserted into the locking recess (301), and the pedal (35) is provided with an unlocking button (363) for driving the locking slider (361) to slide along the slide groove (3610) to achieve unlocking.

9. A baby stroller with a seat foldable along with the frame according to claim 1, characterized in that: The frame (1) comprises: a front leg (11), a front wheel assembly (111), a rear leg (12), a rear wheel assembly (121), an intermediate connecting rod (13), a push rod (14), a first linkage rod (15) and a second linkage rod (16), wherein the front wheel assembly (111) is arranged at the lower end of the front leg (11), and the rear wheel assembly (121) is arranged at the lower end of the rear leg (12), one end of the front leg (11) is pivotally connected to the rear leg (12), one end of the intermediate connecting rod (13) is pivotally connected to the rear leg (12), the lower end of the push rod (14) is pivotally connected to the other end of the intermediate connecting rod (13), one end of the first linkage rod (15) is hinged to the front leg (11), and the other end of the first linkage rod (15) is hinged to the second linkage rod (16). The lower ends of the second linkage rods (16) are hinged, the lower part of the second linkage rod (16) is hinged to the rear legs (12), and the upper end of the second linkage rod (16) is hinged to the push rod (14), so that when the push rod (14) is driven to fold relative to the middle linkage rod (13), the middle linkage rod (13) and the front legs (11) can be driven to rotate relative to the rear legs (12) to achieve folding. The first support rod (101) is arranged on the middle linkage rod (13), and the second support rod (102) is arranged on the second linkage rod (16). A frame locking assembly (17) is provided between the middle linkage rod (13) and the push rod (14) for locking the relative position between the middle linkage rod (13) and the push rod (14) when the frame (1) is unfolded.

10. A baby stroller with a seat foldable along with the frame according to claim 9, characterized in that: The frame locking assembly (17) comprises: an upper locking joint (171), a lower locking joint (172), a locking switching block (173), a reset member (174), a rotation unlocking block (175), a fourth unlocking pull line (176) and an unlocking switch (178), wherein the upper locking joint (171) is connected to the lower end of the hand push rod (14), the lower locking joint (172) is connected to the upper end of the intermediate connecting rod (13), and the upper locking joint (171) and the lower locking joint (172) are connected to each other. The upper locking joint (171) is provided with a first accommodating cavity (17101), the lower locking joint (172) is provided with a second accommodating cavity (17201), the locking switching block (173) can slide axially between the first accommodating cavity (17101) and the second accommodating cavity (17201), the locking switching block (173) is provided with a locking rib (1731), and the first accommodating cavity (17101) is provided with a locking rib (1731) that cooperates with the locking rib (1731). The first locking groove (17102) is provided in the second accommodating cavity (17201), and the second locking groove (17202) is matched with the locking ridge (1731). The reset member (174) is provided in the second accommodating cavity (17201) to make the locking ridge (1731) on the locking switching block (173) be simultaneously engaged in the first locking groove (17102) and the second locking groove (17202). The rotation unlocking block (175) rotates in the second accommodating cavity (17201). 1), a guide slope (1750) is provided between the rotation unlocking block (175) and the second accommodating cavity (17201), and when the rotation unlocking block (175) is rotated, the locking ridge (1731) on the locking switching block (173) can be pushed to disengage from the first locking groove (17102) and unlocked, one end of the inner core of the fourth unlocking wire (176) is connected to the rotation unlocking block (175), and the other end of the inner core of the fourth unlocking wire (176) is connected to the unlocking switch (178).

Images