CN1765673A - Children's trolley - Google Patents

Abstract

A stroller for children comprises a stroller frame, a first front wheel assembly, a first rear wheel assembly, and a second rear wheel assembly, the stroller frame includes a first front wheel bracket, a lower part and the rear of the first front wheel bracket The rear support that is rotatably connected with each other, the first push handle bar and the second push handle bar that are connected to the rear support, the slider that is slidably arranged on the first front wheel bracket, and the first push handle that is connected to the slider. The rear wheel bracket, the second rear wheel bracket, the first driving rod, and the two ends of the first driving rod are respectively connected in a rotational manner with the rear bearing and the sliding member. When folding, the first push handle bar and the second push handle bar are folded downwards, and the rear support is also folded downwards at this time. Driven by the first driving rod, the sliding member is moved forward along the first front wheel bracket. Sliding downwards, the first rear wheel bracket and the second rear wheel bracket slide together with the sliding part, so that the cart frame can be folded, so that the folding cart frame is relatively stable with the basic bar supporting the cart frame. Less, less interference between rods.

Description

stroller

Technical field

The invention relates to a stroller for children.

Background technique

In the prior art, children's strollers include a stroller frame, a first front wheel assembly, a first rear wheel assembly, and a second rear wheel assembly. China's invention patent once disclosed a foldable baby stroller, and its patent number is For 200420024525.0, the cart frame includes a front wheel bracket, side brackets positioned on both sides of the front wheel bracket, and the side bracket includes a rear wheel bracket, a lower end and an upper end of the rear wheel bracket The push bar is rotatably connected, and the rear wheel bracket is rotatably connected with a sliding piece, and the sliding piece is slidably arranged on the front wheel bracket. In order to make the baby stroller easy to fold and unfold The baby stroller also includes an upper link and a lower link, the upper end of the upper link is rotatably connected with the push handle bar, and the lower end of the upper link is connected with the slider. Rotationally connected, the upper end of the lower link is rotatably connected with the rear end of the front wheel bracket, and the lower end of the lower link is rotatably connected with the rear wheel bracket to realize folding and pushing There are many basic rods that support the stability of the trolley frame and the cart frame, and the interference between the rods is relatively large.

Contents of Invention

The object of the present invention is to provide a stroller for children, which has less basic rods for realizing the stability of the folding cart frame and the supporting cart frame, and less interference between the rods.

The technical solution of the present invention is: a stroller for children, including a stroller frame, a first front wheel assembly, a first rear wheel assembly, and a second rear wheel assembly, and the stroller frame includes a first front wheel bracket , the rear support whose lower part is rotatably connected to the rear part of the first front wheel bracket, the first push handle rod and the second push handle rod connected to the two sides of the rear support support, and are slidably arranged The slider on the first front wheel bracket, the first rear wheel bracket and the second rear wheel bracket connected to both sides of the slider are rotatably connected to the first front wheel bracket respectively. The first sliding sleeve, the second sliding sleeve, and the first driving rod on both sides of the wheel bracket, the first rear wheel bracket is slidably inserted into the first sliding sleeve, and the second rear wheel bracket slides Inserted in the second sliding sleeve, one end of the first driving rod is rotatably connected with the rear support, and the other end of the first driving rod is connected with the sliding The parts are rotatably connected, the first front wheel assembly is arranged at the front lower part of the first front wheel bracket, and the first rear wheel assembly is arranged at the lower part of the first rear wheel bracket, so The second rear wheel assembly is arranged at the lower part of the second rear wheel bracket.

The first push handle rod is rotatably connected to the rear support, the second push handle rod is rotatably connected to the rear support, and the first push handle rod It is perpendicular to the rotation axis of the rear support and the rotation axis of the first front wheel bracket between the rear support and the first front wheel bracket, and the second push handle bar is connected to the rear The axis of rotation of the support, the axis of rotation of the rear support and the axis of rotation of the first front wheel bracket are vertical in space.

The upper end of the first rear wheel bracket is rotatably connected to the slider, the upper end of the second rear wheel bracket is rotatably connected to the slider, and the first rear wheel bracket is rotatably connected to the slider. The wheel bracket is perpendicular to the rotation axis of the slider, the rear support is vertical to the rotation axis of the first front wheel bracket, and the second rear wheel bracket is vertical to the rotation axis of the first front wheel bracket. The rotation axis of the slider, the rear support and the rotation axis of the first front wheel support are vertical to each other.

The inner side wall of the first sliding sleeve has a first limiting surface, and the second sliding sleeve has a second limiting surface. When the stroller frame is unfolded, the first rear wheel bracket will abut against On the first limiting surface, the second rear wheel bracket abuts against the second limiting surface. When the stroller frame is folded, the first rear wheel bracket is partially or completely Breaking away from the first limiting surface, the second rear wheel bracket is partially or completely breaking away from the second limiting surface.

One end of the first side bar is rotatably provided on the first push handle bar, and the other end of the first side bar is rotatably set with one side of the slider. One end of the second side bar is rotatably arranged on the second push handle bar, and the other end of the second side bar is rotatably set with the other side of the slider.

The first telescopic piece and the second telescopic piece are slidably inserted on both sides of the slider, and the other end of the first side bar is rotatably connected to the outer end of the first telescopic piece. , the other end of the second side rod is rotatably connected to the outer end of the second telescopic member.

One end of the traction cable is connected to the upper part of the rear support, and the other end of the traction cable is respectively connected to the inner end of the first telescopic element and the inner end of the second telescopic element, When the cart frame is folded, the traction cable respectively drags the first telescopic member and the second telescopic member.

A first spring is provided between the first telescopic member and the sliding member, and a second spring is provided between the second telescopic member and the sliding member.

The cart frame is provided with a locking device, and when the cart frame is unfolded, the locking device locks the cart frame at the unfolded position.

The locking device includes a locking hook rotatably arranged on the rear support, one of the rear ends of the first front wheel bracket, and a locking member arranged on the other, when the cart is pushed When the frame is unfolded, the lock hook hooks the lock piece.

Compared with the prior art, the present invention has the following advantages: when folding, the first push handle bar and the second push handle bar are folded down, and the rear support is also folded down at this time, driven by the first drive rod , so that the sliding member slides forward and downward along the first front wheel bracket, while the first rear wheel bracket and the second rear wheel bracket slide together with the sliding member , that is, the cart frame can be folded, so the folding cart frame and the basic rods supporting the stability of the cart frame are less, and the interference between the rods is small.

Description of drawings

Accompanying drawing 1 is the expanded perspective view of the present invention;

Accompanying drawing 2 is the folding perspective view of the present invention;

Accompanying drawing 3 is the partial sectional view when the present invention expands;

Accompanying drawing 4 is the partial sectional view when the present invention is folded;

Accompanying drawing 5 is the sectional view of the A-A direction of accompanying drawing 4;

Accompanying drawing 6 is the front view when the present invention is expanded;

Accompanying drawing 7 is the back view when the present invention expands;

Accompanying drawing 8 is the folding plan view of the present invention;

Accompanying drawing 9 is the expanded schematic diagram of the present invention;

Accompanying drawing 10 is the folding diagram of the present invention;

Among them: 1. Cart frame; 2. The first front wheel assembly; 3. The first rear wheel assembly; 4. The second rear wheel assembly; 5. The first front wheel bracket; 6. The first rear wheel bracket; 7 , the second rear wheel bracket; 8, the first push handle bar; 9, the second push handle bar; 10, the rear bearing; 11, the sliding part; 12, the first sliding sleeve; 13, the second sliding sleeve; 14, 15, the second drive rod; 16, the first telescopic part; 17, the second telescopic part; 18, the locking device; 19, the locking hook; 20, the locking part; Spring; 23, the second spring; 24, the first side bar; 25, the second side bar; 26, the seat mechanism; 27, the first limit surface; 28, the second limit surface;

Detailed ways

As shown in the accompanying drawings, a children's stroller includes a stroller frame 1, a first front wheel assembly 2, a first rear wheel assembly 3, and a second rear wheel assembly 4,

As shown in accompanying drawing 1, accompanying drawing 2, accompanying drawing 9, accompanying drawing 10, described trolley vehicle frame 1 comprises the first front wheel support 5, the rear portion of the bottom and described first front wheel support 5 The rear support 10 connected in rotation, the first push handle bar 8 and the second push handle bar 9 connected to the two sides of the rear support 10 are slidably arranged on the first front wheel support 5 The slider 11, the first rear wheel bracket 6 and the second rear wheel bracket 7 connected to the two sides of the slider 11 are rotatably connected to the two rear parts of the first front wheel bracket 5 respectively. The first sliding sleeve 12, the second sliding sleeve 13, and the first drive rod 14 on the side, the first rear wheel bracket 6 is slidably inserted in the first sliding sleeve 12, and the second rear wheel The bracket 7 is slidably inserted in the second sliding sleeve 13, one end of the first driving rod 14 is connected to the rear support 10 in a rotational manner, and the other end of the first driving rod 14 is One end is rotatably connected with the slider 11, and there is also a second drive rod 15, one end of the second drive rod 15 is rotatably connected with the rear support 10, and the first The other end of the two drive rods 15 is rotatably connected to the slider 11, the first front wheel assembly 2 is arranged at the front lower part of the first front wheel bracket 5, and the first rear wheel The wheel assembly 3 is arranged at the lower rear part of the first rear wheel bracket 6 , and the second rear wheel assembly 4 is arranged at the lower rear part of the second rear wheel bracket 7 .

As shown in accompanying drawing 1, accompanying drawing 2, accompanying drawing 6-accompanying drawing 10, described first push handle bar 8 is rotatably connected on described rear support 10, and described second push handle bar 9 is rotatably connected to the rear support 10, the rotation axis of the first push bar 8 and the rear support 10, the rear support 10 and the second The axis of rotation of a front wheel support 5 is perpendicular to the space, the axis of rotation of the second push bar 9 and the rear support 10, the rear support 10 and the first The axis of rotation of the front wheel support 5 is perpendicular to the space. The upper end of the first rear wheel bracket 6 is rotatably connected to the slider 11, and the upper end of the second rear wheel bracket 7 is rotatably connected to the slider 11. The first rear wheel support 6 is perpendicular to the rotation axis of the slider 11, the rear support 10 is perpendicular to the rotation axis of the first front wheel support 5, and the first The two rear wheel brackets 7 are vertical to the rotation axis of the slider 11 , and the rear support 10 is vertical to the rotation axis of the first front wheel bracket 5 .

As shown in Figure 7, the inner wall of the first sliding sleeve 12 has a first limiting surface 27, and the second sliding sleeve 13 has a second limiting surface 28. , the first rear wheel bracket 6 abuts on the first limiting surface 27, and the second rear wheel bracket 7 abuts on the second limiting surface 28, when the pushcart When the frame is folded, the first rear wheel bracket 6 is partially or completely separated from the first limiting surface 27, and the second rear wheel bracket 7 is partially or completely separated from the second limiting surface 28.

As shown in the accompanying drawings, one end of the first side bar 24 is rotatably provided on the first push handle bar 8, and the other end of the first side bar 24 is connected to the slider 11. One side of the second side rod 25 is rotatably provided with one end of the second side rod 25, and the other end of the second side rod 25 is connected with the sliding The other side of the member 11 is set in a rotatable manner. The first telescopic piece 16 and the second telescopic piece 17 are slidably inserted into the two sides of the slider 11 respectively, and the other end of the first side bar 24 is connected to the outer surface of the first telescopic piece 16. The ends are rotatably connected, and the other end of the second side rod 25 is rotatably connected with the outer end of the second telescopic member 17 .

One end of the traction cable 21 is connected to the top of the rear support 10, and the other end of the traction cable 21 is respectively connected to the inner end of the first telescopic member 16 and the inner end of the second telescopic member 17. The ends are connected, and when the cart frame 1 is folded, the traction cable 21 drags the first telescopic member 16 and the second telescopic member 17 respectively, so that the first telescopic member 16 Most of the second telescopic member 17 slides into the inner chamber of the sliding member 11 .

As shown in Figure 5, a first spring 22 is provided between the first telescopic member 16 and the sliding member 11, and a spring 22 is provided between the second telescopic member 17 and the sliding member 11. Second spring 23.

As shown in accompanying drawing 3, accompanying drawing 4, described cart frame 1 is provided with locking device 18, when cart frame 1 unfolds, described locking device 18 will described cart frame 1 Locked in unfolded position. The locking device 18 includes a lock hook 19 rotatably arranged on one of the rear support 10 and the rear end of the first front wheel bracket 5, and a locking member 20 arranged on the other. , when the stroller frame 1 is unfolded, the lock hook 19 hooks the lock member 20 .

As shown in Figure 1, the first side rod 24, the second side rod 25, the first telescopic member 16, the second telescopic member 17, and the sliding member 11 Form seat mechanism 26 between, described seat mechanism 26 can be provided with seat.

Claims (10)

1. A stroller for children, comprising a stroller frame (1), a first front wheel assembly (2), a first rear wheel assembly (3), a second rear wheel assembly (4), It is characterized in that the cart frame (1) includes a first front wheel bracket (5), a rear support (10) whose lower part is rotatably connected to the rear of the first front wheel bracket (5) , the first push handle bar (8) and the second push handle bar (9) connected to the two sides of the rear support (10), slidably arranged on the first front wheel bracket (5) The sliding piece (11) on the top, the first rear wheel support (6) and the second rear wheel support (7) connected to the two sides of the sliding piece (11), are respectively rotatably connected to the The first sliding sleeve (12) and the second sliding sleeve (13) and the first drive rod (14) on both sides of the first front wheel bracket (5), the first rear wheel bracket (6) is slidably inserted in In the first sliding sleeve (12), the second rear wheel bracket (7) is slidably inserted in the second sliding sleeve (13), and the first driving rod (14) One end is rotatably connected with the rear support (10), the other end of the first drive rod (14) is rotatably connected with the slider (11), and the first The front wheel assembly (2) is arranged at the front lower part of the first front wheel bracket (5), and the first rear wheel assembly (3) is arranged at the lower part of the first rear wheel bracket (6), The second rear wheel assembly (4) is arranged at the lower part of the second rear wheel support (7). 2. The stroller for children according to claim 1, characterized in that: said first push handle rod (8) is rotatably connected to said rear support (10), said second push handle The rod (9) is rotatably connected to the rear support (10), the first push bar (8) and the rotation axis of the rear support (10), the The rear support (10) is perpendicular to the axis of rotation of the first front wheel support (5), and the second push handle bar (9) is vertical to the rear support (10) The axis of rotation, the rear support (10) and the axis of rotation of the first front wheel bracket (5) are vertical in space. 3. The stroller according to claim 2, characterized in that: the upper end of the first rear wheel support (6) is rotatably connected to the sliding member (11), and the second The upper end of the rear wheel support (7) is rotationally connected with the sliding member (11), and the first rear wheel support (6) is connected to the rotation axis of the sliding member (11), the Described rear support (10) is perpendicular to the rotation axis of described first front wheel bracket (5), and described second rear wheel bracket (7) is perpendicular to the described slider (11) The axis of rotation, the rear support (10) and the axis of rotation of the first front wheel bracket (5) are vertical in space. 4. The children's stroller according to claim 3, characterized in that: the inner wall of the first sliding sleeve (12) has a first limiting surface (27), and the second sliding sleeve (13) ) has a second limiting surface (28), when the cart frame is unfolded, the first rear wheel bracket (6) abuts on the first limiting surface (27), and the first The two rear wheel brackets (7) abut against the second limiting surface (28), and when the cart frame is folded, the first rear wheel bracket (6) is partly or completely separated from the first The limiting surface (27), the second rear wheel bracket (7) is partially or completely separated from the second limiting surface (28). 5. The stroller for children according to claim 2, characterized in that: one end of the first side bar (24) is rotatably provided on the first push handle bar (8), and the first side bar (24) The other end of the side bar (24) is rotatably set with one side of the slider (11), and the second push bar (9) is rotatably provided with a second side bar (25 ), the other end of the second side lever (25) is set in a rotational manner with the other side of the slider (11). 6. The stroller for children according to claim 5, characterized in that: the first telescopic piece (16) and the second telescopic piece (17) are slidably inserted into the two sides of the sliding piece (11), respectively, The other end of the first side rod (24) is rotatably connected to the outer end of the first telescopic member (16), and the other end of the second side rod (25) is connected to the outer end of the first telescopic member (16). The outer end of the second telescopic piece (17) is rotatably connected. 7. The children's stroller according to claim 6, characterized in that: one end of the traction cable (21) is connected to the upper part of the rear support (10), and the other end of the traction cable (21) The parts are respectively connected with the inner end of the first telescopic element (16) and the inner end of the second telescopic element (17). When the cart frame (1) is folded, the traction rope (21 ) drag the first telescopic element (16) and the second telescopic element (17) respectively. 8. The stroller for children according to claim 6, characterized in that: a first spring (22) is arranged between the first telescopic member (16) and the sliding member (11), and the A second spring (23) is arranged between the second telescopic piece (17) and the sliding piece (11). 9. The children's stroller according to claim 1, characterized in that: said stroller frame (1) is provided with a locking device (18), when the stroller frame (1) is unfolded, said A locking device (18) locks the cart frame (1) in the unfolded position. 10. The stroller for children according to claim 9, characterized in that: the locking device (18) includes rotatably arranged on the rear support (10), the first front wheel bracket ( 5) the locking hook (19) on one of the rear ends and the locking piece (20) on the other, when the cart frame (1) is unfolded, the locking hook (19) hooks the lock (20).

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