CN101898574B - stroller - Google Patents

Abstract

A stroller for children, comprising a stroller frame and a frame locking mechanism for locking the stroller frame in an unfolded position. The first rotating shaft is a push rod that rotates behind or in front of the cart frame, the first rotating shaft is located at the bottom of the push rod, and the cart frame also includes a lower end that is rotationally connected to the upper end of the push rod through a second rotating shaft A push handle, a push handle locking mechanism with a locking position and an unlocking position for locking the two positions is arranged between the push handle and the push rod. Since the first rotating shaft is located at the lower end of the push rod, and the second rotating shaft is located at the upper end of the push rod, when the cart frame is in the process of switching between the unfolded position and the folded position, the push rod can still be pushed around the first rotating shaft. When the rear or the front of the cart frame rotates, the second rotating shaft moves down, and the push handle can rotate upward around the second rotating shaft, so that the upper end of the push handle is still on the top, which is convenient for the person pushing the cart to take and operate.

Description

stroller

technical field

The invention relates to a stroller for children.

Background technique

The children's stroller in the prior art includes a stroller frame with an unfolded position and a folded position, a front wheel assembly arranged at the front lower part of the stroller frame, and a rear wheel assembly arranged at the rear lower part of the stroller frame. The rear wheel assembly, the frame locking mechanism that locks the cart frame in the unfolded position and has a locked position and an unlocked position, and the cart frame includes that when the cart frame moves from the deployed position to The push rod that can rotate around the first rotating shaft to the rear or front of the cart frame during the conversion of the folded position, the first rotating shaft is located at the lower part of the push rod, when the cart frame is in In the unfolded position, the upper end of the push rod is at the uppermost position in the cart frame, and when the cart frame is in the folded position, the upper end of the push rod is at the lower part and close to the rear Wheel assembly or front wheel assembly, and the upper end of the push rod is fixed with a push handle for the pusher to hold, so the push cart frame is in the conversion process between the unfolded position and the folded position, as the push handle is raised or It is lowered, and it is necessary to bend down to operate the stroller, which is inconvenient to operate.

Contents of the invention

The technical problem to be solved by the present invention is to provide a stroller for children.

In order to solve the above technical problems, a kind of technical scheme that the present invention adopts is:

A stroller for children, comprising a stroller frame with an unfolded position and a folded position, a front wheel assembly arranged at the front lower part of the stroller frame, and a rear wheel assembly arranged at the rear lower part of the stroller frame . A frame locking mechanism with a locked position and an unlocked position for locking the cart frame in the unfolded position, the cart frame includes when the cart frame is converted from the unfolded position to the folded position The push rod that can rotate around the first rotating shaft to the rear or front of the cart frame, the first rotating shaft is located at the lower part of the push rod, and the cart frame also includes The lower end is rotatably connected to the upper end of the push rod through the second rotating shaft. A push handle with a locking position and an unlocking function for locking the two positions is provided between the push handle and the push rod. Position the push handle locking mechanism.

In some embodiments, the push handle is provided with an operating mechanism capable of controlling the push handle locking mechanism to switch from the locked position to the unlocked position.

In some embodiments, the frame locking mechanism includes a locking piece that can be movably arranged on the push rod, and a lock set between the locking piece and the push rod so that the The elastic member of the locking part of the frame locking mechanism is stably in the locked position, one end of the pulling cable of the locking part is connected to the locking part, and the other end of the pulling cable of the locking part is connected with the push handle The lower part is connected.

In some further embodiments, when the push handle locking mechanism is in the unlocked position, the push handle rotates around the second rotation axis in the opposite direction to the rotation of the push rod around the first rotation axis During the process, the dragging cable of the locking part gradually winds around the lower end of the push handle or around the upper end of the push rod.

In some still further embodiments, the upper end of the push rod is fixedly provided with a positioning pin, the positioning pin deviates from the second rotation axis, and the pulling cable of the locking member bypasses the Locating pins.

In some embodiments, between the upper part of the push rod and the lower part of the push handle, there is also a device that limits the direction of the push handle around the second rotating shaft and the direction of the push rod around the second rotating shaft. A limiting mechanism that rotates in the same direction as the rotating shaft rotates.

In some embodiments, the cart frame also includes

The front bracket, the lower end of the push rod is rotatably connected to the upper end of the front bracket through a third rotating shaft;

The rear bracket, the lower part of the push rod and the upper end of the rear bracket are rotationally connected through the first rotating shaft, and the third rotating shaft is located in front of the first rotating shaft;

a seat post, the front part of the seat post is rotatably connected to the front bracket via a fourth rotation shaft, and the rear part of the seat post is rotatably connected to the rear support via a fifth rotation shaft,

The frame locking mechanism is arranged between the push rod and the rear bracket, or the frame locking mechanism is arranged between the push rod and the front bracket.

In some further embodiments, the frame locking mechanism is arranged between the push rod and the rear bracket, and the frame locking mechanism includes a lock groove opened on the rear bracket , a lock piece that can be slidably arranged on the push rod, and a lock that is arranged between the lock piece and the push rod so that the lock piece has a tendency to protrude relative to the push rod An elastic piece, when the frame locking mechanism is in the locked position, the locking piece is inserted into the lock slot, when the frame locking mechanism is in the unlocking position, the locking piece is disengaged the lock slot.

In some embodiments, the cart frame also includes

The front bracket, the lower end of the push rod is rotatably connected to the upper end of the front bracket through a third rotating shaft;

a connecting rod, the upper end of the connecting rod is rotationally connected to the push rod through the first rotating shaft, and the third rotating shaft is located in front of the first rotating shaft;

The rear bracket, the front end of the rear bracket is rotatably connected to the front bracket, and the lower end of the connecting rod is rotatably connected to the rear bracket;

The frame locking mechanism is arranged between the push rod and the front bracket, or the frame locking mechanism is arranged between the push rod and the connecting rod.

In some embodiments, the push handle locking mechanism includes a first tooth groove opened on the push handle, a second tooth groove opened on the push rod, and a second tooth groove opened on the push rod, slidingly arranged on the The tooth block between the first tooth slot and the second tooth slot, when the push handle locking mechanism is in the locked position, the tooth block is located between the first tooth slot and the second tooth slot Between the tooth grooves, when the push handle locking mechanism is in the unlocked position, the tooth block is located in one of the first tooth groove and the second tooth groove, and the push handle The handle locking mechanism also includes a tooth block elastic member that makes the push handle locking mechanism stably located at the locking position.

The orientation words such as up, down, front, and back mentioned above are defined when the cart frame is in the unfolded position, the position of the front wheel assembly is front-down, and the position of the rear wheel assembly is back-down .

The scope of the present invention is not limited to technical solutions formed by a specific combination of the above technical features, but also covers other technical solutions formed by any combination of the above technical features or equivalent features. For example, technical solutions formed by replacing the above-mentioned features with (but not limited to) technical features with similar functions disclosed in this application.

Due to the application of the above-mentioned technical solutions, the present invention has the following advantages compared with the prior art: since the first rotating shaft is located at the lower end of the push rod, and the second rotating shaft is located at the upper end of the push rod, when the cart frame In the process of switching between the unfolded position and the folded position, the push rod can still rotate around the first rotating shaft to the rear or forward of the cart frame, the second rotating shaft moves down, and The push handle can rotate upward around the second rotating shaft, so that the upper end of the push handle is still on the top, which is convenient for the pusher to take and operate.

Description of drawings

Accompanying drawing 1 is the front view of cart frame (embodiment one, cart frame is under the expanded position);

Accompanying drawing 2 is the front view of the cart frame (embodiment 1, the state diagram 1 of the cart frame in the process of switching from the unfolded position to the folded position);

Accompanying drawing 3 is the front view of the cart frame (embodiment 1, the state diagram 2 of the cart frame in the process of switching from the unfolded position to the folded position);

Accompanying drawing 4 is the front view of cart frame (embodiment one, cart frame is under the folded position);

Accompanying drawing 5 is the perspective view of cart frame (embodiment one, cart frame is under the expanded position);

Accompanying drawing 6 is the sectional view of vehicle frame locking mechanism;

Accompanying drawing 7 is the sectional view of push handle locking mechanism;

Accompanying drawing 8 is the front view of the cart frame (in the second embodiment, the cart frame is in the unfolded position).

Of which: 1. Cart frame; 2. Front wheel assembly; 3. Rear wheel assembly; 4. First shaft; 5. Push rod; 6. Second shaft; 7. Push handle; 8. Operating mechanism; 9. Locking piece; 10. Elastic piece of locking piece; 11. Pulling cable of locking piece; 12. Locating pin; 13. Front bracket; 14. Third rotating shaft; 15. Rear bracket; 16. Seat bar; 18. The first tooth groove; 19. The second tooth groove; 20. The tooth block; 21. The elastic part of the tooth block.

Detailed ways

Embodiment 1: As shown in accompanying drawing 1-accompanying drawing 5,

A stroller for children, comprising a stroller frame 1 with an unfolded position and a folded position, a front wheel assembly 2 arranged at the front lower part of the stroller frame 1, and a front wheel assembly 2 arranged at the rear lower part of the stroller frame 1 The rear wheel assembly 3 is a frame locking mechanism that locks the cart frame 1 in the unfolded position and has a locking position and an unlocking position.

The cart frame 1 includes a push rod 5 that can rotate around the first rotating shaft 4 to the rear of the cart frame 1 when the cart frame 1 is transformed from the unfolded position to the folded position. , the first rotating shaft 4 is located at the lower part of the push rod 5,

The cart frame 1 also includes a push handle 7 whose lower end is rotatably connected to the upper end of the push rod 5 through the second rotating shaft 6, and the upper part of the push handle 7 has a handle. A push handle locking mechanism with a locked position and an unlocked position is provided between the push handle 7 and the push rod 5 for locking the two positions.

As shown in Figure 6, the frame locking mechanism includes a locking member 9 slidably arranged on the push rod 5, a locking member 9 arranged between the locking member 9 and the push rod 5 The elastic member 10 of the locking member that makes the frame locking mechanism stably in the locked position, and the locking member 9 can also be rotatably connected to the push rod 5 . As shown in FIG. 1 , one end of the locking member pulling cable 11 is connected to the locking member 9 , and the other end of the locking member pulling cable 11 is connected to the lower part of the push handle 7 .

When the push handle locking mechanism is in the unlocked position, the push handle 7 rotates around the second rotating shaft 6 in the direction opposite to the rotation of the push rod 5 around the first rotating shaft 4, that is, the The push handle 7 rotates to the front of the cart frame 1 around the second rotating shaft 6 (if the push rod 5 can rotate around the process when the cart frame 1 is converted from the unfolded position to the folded position The first rotating shaft 4 rotates to the front of the cart frame 1, and at this moment, the push handle 7 should rotate to the rear of the cart frame 1 around the second rotating shaft 6), so The above-mentioned locking element pulling rope 11 is wound gradually on the lower end of the push handle 7 or on the upper end of the push rod 5). The locking member 9 is pulled by the locking member pulling cable 11, so that the frame locking mechanism is unlocked. Thus, the effect of insurance can also be played. When the cart frame needs to be folded, the push handle locking mechanism must be unlocked first, and the push handle 7 must be rotated forward at an angle to unlock the vehicle frame locking mechanism, so that Stroller frame folds.

As shown in Figure 1, the upper end of the push rod 5 is fixedly provided with a positioning pin 12, the positioning pin 12 deviates from the second rotating shaft 6, and the locking member traction cable 11 bypasses the The positioning pin 12 described above.

Between the upper part of the push rod 5 and the lower part of the push handle 7, there is also a device that restricts the movement of the push handle 7 around the second rotation axis 6 to the first rotation axis with the push rod 5. 4 is a limiting mechanism that rotates in the same direction as the rotation, that is, the limiting mechanism can limit the rotation of the push handle 7 around the second rotating shaft toward the rear of the cart frame 1 . The specific structure of the position-limiting mechanism is not limited, it may be that there is a first position-limiting protrusion on the top of the push rod 5, and a second position-limiting protrusion is provided on the bottom of the push handle 7, for example, as shown in the accompanying drawing 1 Next, the first limit protrusion and the second limit protrusion just conflict, and when the push handle locking mechanism is unlocked, the push handle 7 can only rotate around the second rotating shaft 6 to the front of the cart frame 1, but cannot push toward the front of the cart frame 1. The rear of car frame 1 rotates. Prevent users from operating uncertainly during use.

The push handle 7 is provided with an operating mechanism 8 capable of controlling the shift of the push handle locking mechanism from the locked position to the unlocked position.

As shown in accompanying drawing 1-accompanying drawing 5, described cart frame 1 also includes

The front bracket 13, the lower end of the push rod 5 is rotationally connected with the upper end of the front bracket 13 through the third rotating shaft 14, and the front wheel assembly 2 is arranged on the lower end of the front bracket 13;

The rear bracket 15, the lower part of the push rod 5 and the upper end of the rear bracket 15 are rotationally connected through the first rotating shaft 4, and the third rotating shaft 14 is located on the first rotating shaft 4 The front of the rear wheel assembly 3 is arranged on the lower end of the rear bracket 15;

Seat post 16, the front portion of the seat post 16 is rotationally connected with the front support 13 via the fourth rotating shaft, and the rear portion of the seat post 16 is connected with the rear support 15 via the fifth rotating shaft rotationally connected,

The frame locking mechanism is arranged between the push rod 5 and the rear bracket 15 . It is also possible that the frame locking mechanism is arranged between the push rod 5 and the front bracket 13 .

As shown in accompanying drawing 6, described vehicle frame locking mechanism is arranged between described push rod 5 and described rear support 15, and described vehicle frame locking mechanism includes opening on described rear support 15 The lock slot 17, the locking piece 9 slidably arranged on the push rod 5, the locking piece 9 arranged between the locking piece 9 and the push rod 5 so that the locking piece 9 is opposite to the The push rod 5 has a locking member elastic member 10 extending out. When the vehicle frame locking mechanism is in the locked position, the locking member 9 is inserted into the locking groove 17. When the vehicle frame is locked The mechanism is in the unlocked position, and the locking member 9 is disengaged from the locking groove 17 .

As shown in Figure 7, the push handle locking mechanism includes a first tooth groove 18 set on the push handle 7, a second tooth groove 19 set on the push rod 5, and is slidably arranged The tooth block 20 between the first tooth slot 18 and the second tooth slot 19, when the push handle locking mechanism is in the locked position, the tooth block 20 is located in the first tooth slot 19 Between the tooth groove 18 and the second tooth groove 19, when the push handle locking mechanism is in the unlocked position, the tooth block 20 is located in the first tooth groove 18, and the push handle The locking mechanism also includes a tooth block elastic member 21 that makes the push handle locking mechanism stably located at the locking position. The push handle 7 is provided with an operating mechanism 8 for controlling the push handle locking mechanism, and the operating mechanism 8 includes an operating member movably arranged on the push handle 7, an end connected to the push handle 7 The tooth block traction cable connected with the operating part, the locking tooth block 20 is connected with the other end of the tooth block traction cable. The push handle locking mechanism is controlled by operating the operating mechanism 8 .

In the operation process, overcome the elastic force of the tooth block elastic member 21, press the operating part of the operating mechanism 8, and pass the tooth block traction cable, so as to drive the tooth block to slide completely into the second tooth groove 19, that is, push the lock mechanism From the locked position to the unlocked position, at this time, the push handle 7 is rotated to the front of the cart frame 1 around the second rotating shaft 6, so that the pulling rope 11 of the locking part is dragged. The locking member 9 makes the frame locking mechanism switch from the locked position to the unlocked position. During the folding process of the cart frame 1, the push rod 5 moves toward the side of the cart frame 1 around the first rotating shaft 4. rear shaft, and the direction of rotation of the push handle 7 and the push rod 5 is opposite. After the cart frame 1 is folded, the upper end of the push handle 7 is still at the top of the folded cart frame 1, which is convenient The operator takes and operates.

Embodiment 2, the difference between embodiment 2 and embodiment 1 lies in that the folding principles and connection structures of the cart frames of the two are different. As shown in accompanying drawing 8, described cart frame 1 comprises

The front bracket 13, the lower end of the push rod 5 is rotationally connected with the upper end of the front bracket 13 through the third rotating shaft 14, and the front wheel assembly 2 is arranged on the lower end of the front bracket 13;

A connecting rod 17, the upper end of the connecting rod 17 is connected to the push rod 5 in a rotational manner through the first rotating shaft, and the third rotating shaft 14 is located on the side of the first rotating shaft 4 ahead;

Rear support 15, the front end of described rear support 15 is rotatably connected with described front support 13, the lower end of described connecting rod 17 is rotatably connected with described rear support 15, rear wheel assembly 3 set at the lower end of the rear bracket 15,

The frame locking mechanism is arranged between the push rod 5 and the front bracket 13, and the frame locking mechanism can also be arranged between the push rod 5 and the connecting rod 17. between. But the structure of the specific vehicle frame locking mechanism is not affected.

As mentioned above, we have fully described according to the purpose of the present invention, but the present invention is not limited to the above-mentioned embodiments and implementation methods. Practitioners in the relevant technical fields may make various changes and implementations within the scope permitted by the technical ideas of the present invention.

Claims (10)

1. children trolley; Comprise go-cart vehicle frame (1), the front component (2) that is arranged at the preceding bottom of described go-cart vehicle frame (1), the wheel assembly (3) that is arranged at described go-cart vehicle frame (1) rear lower, described go-cart vehicle frame (1) is locked in the vehicle frame lockout mechanism with latched position and unlocked position under the expanded position with expanded position and folding position; Described go-cart vehicle frame (1) comprises the push rod (5) that can be rotated to rear or the place ahead of described go-cart vehicle frame (1) around first rotating shaft (4) in the process of folding position conversion by expanded position when described go-cart vehicle frame (1); Described first rotating shaft (4) is positioned at the bottom of described push rod (5); It is characterized in that: the upper end that described go-cart vehicle frame (1) also comprises bottom and described push rod (5) is provided with the handle lockout mechanism with latched position and unlocked position that is used for both locking positions through second rotating shaft (6) bonded assembly handle (7) rotatedly between described handle (7) and the described push rod (5).

2. children trolley according to claim 1 is characterized in that: described handle (7) is provided with can control described handle lockout mechanism is converted to unlocked position in latched position operating mechanism (8).

3. children trolley according to claim 1; It is characterized in that: described vehicle frame lockout mechanism comprises that the locking piece (9) that can be arranged on versatilely on the described push rod (5), the described vehicle frame lockout mechanism that makes that is arranged between described locking piece (9) and the described push rod (5) stably are in the locking piece elastic component (10) under the latched position; Be connected with an end of locking piece trailing cable (11) on the described locking piece (9), the other end of described locking piece trailing cable (11) is connected with the bottom of described handle (7).

4. children trolley according to claim 3; It is characterized in that: when described handle lockout mechanism is in the unlocked position down; Described handle (7) around described second rotating shaft (6) towards with described push rod (5) in the opposite direction rotating process that first rotating shaft (4) is rotated, described locking piece trailing cable (11) gradual change gradually long on the bottom of described handle (7) or on the upper end of described push rod (5).

5. children trolley according to claim 3; It is characterized in that: the upper end of described push rod (5) is provided with locating dowel pin (12) regularly; Described locating dowel pin (12) departs from described second rotating shaft (6), and described locking piece trailing cable (11) is walked around described locating dowel pin (12).

6. children trolley according to claim 1; It is characterized in that: between the bottom of the top of described push rod (5) and described handle (7), also be provided with the described handle of restriction (7) around described second rotating shaft (6) towards the stop gear that rotates with the identical direction that described push rod (5) rotates around first rotating shaft (4).

7. children trolley according to claim 1 is characterized in that: described go-cart vehicle frame (1) also comprises:

Front frame (13), the bottom of described push rod (5) is connected through the 3rd rotating shaft (14) with the upper end of described front frame (13) rotatedly;

The bottom of after poppet (15), described push rod (5) is connected through described first rotating shaft (4) with the upper end of described after poppet (15) rotatedly, and described the 3rd rotating shaft (14) is positioned at the place ahead of described first rotating shaft (4);

Seat post (16), the front portion of described seat post (16) is connected through the 4th rotating shaft with described front frame (13) rotatedly, and the rear portion of described seat post (16) is connected through the 5th rotating shaft with described after poppet (15) rotatedly,

Described vehicle frame lockout mechanism is arranged between described push rod (5) and the described after poppet (15), and perhaps described vehicle frame lockout mechanism is arranged between described push rod (5) and the described front frame (13).

8. children trolley according to claim 7; It is characterized in that: described vehicle frame lockout mechanism is arranged between described push rod (5) and the described after poppet (15); Described vehicle frame lockout mechanism comprises the locked groove (17) that is opened on the described after poppet (15), can be slidingly arranged in the locking piece (9) on the described push rod (5), the described relatively push rod of described locking piece (9) (5) that makes that is arranged between described locking piece (9) and the described push rod (5) has the locking piece elastic component (10) of the trend of stretching out; When described vehicle frame lockout mechanism is positioned under the latched position; Described locking piece (9) is inserted in the described locked groove (17); When described vehicle frame lockout mechanism is positioned under the unlocked position, described locking piece (9) breaks away from described locked groove (17).

9. children trolley according to claim 1 is characterized in that: described go-cart vehicle frame (1) also comprises

Front frame (13), the bottom of described push rod (5) is connected through the 3rd rotating shaft (14) with the upper end of described front frame (13) rotatedly;

Be connected rotatedly through described first rotating shaft between the connecting rod (17), the upper end of described connecting rod (17) and described push rod (5), described the 3rd rotating shaft (14) is positioned at the place ahead of described first rotating shaft (4);

The leading section of after poppet (15), described after poppet (15) is connected with described front frame (13) rotatedly, and the bottom of described connecting rod (17) is connected with described after poppet (15) rotatedly;

Described vehicle frame lockout mechanism is arranged between described push rod (5) and the described front frame (13), and perhaps described vehicle frame lockout mechanism is arranged between described push rod (5) and the described connecting rod (17).

10. children trolley according to claim 1; It is characterized in that: described handle lockout mechanism comprises first teeth groove (18) that is opened on the described handle (7), be opened in second teeth groove (19) on the described push rod (5), be arranged at the tooth piece (20) between described first teeth groove (18) and described second teeth groove (19) slidably; When described handle lockout mechanism is positioned under the latched position; Described tooth piece (20) is positioned between described first teeth groove (18) and described second teeth groove (19); When described handle lockout mechanism is positioned under the unlocked position; Described tooth piece (20) is arranged in both one of described first teeth groove (18) and described second teeth groove (19), and described handle lockout mechanism also comprises makes described handle lockout mechanism stably be positioned at the tooth piece elastic component (21) under the latched position.

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