Chassis assembly for baby carriage

Abstract

The utility model relates to the technical field of baby carriages, and discloses a chassis assembly for a baby carriage, which comprises a chassis, a sliding rail is fixedly connected below the chassis, a wheel assembly is arranged below the sliding rail, the wheel assembly comprises a bottom sliding block, a sliding assembly is arranged above the bottom sliding block, the sliding assembly comprises a sliding groove, and the sliding groove is arranged above the bottom sliding block. The sliding groove is formed in the upper portion of the chassis, the inner surface of the sliding groove is slidably connected with a sliding block, the sliding block is fixedly connected with the upper portion of the bottom sliding block, the upper portion of the sliding block is fixedly connected with a sliding seat, the number of the wheel assemblies and the number of the sliding assemblies are two, and a linkage assembly is arranged between the two sliding assemblies. One set of wheel assembly slides on the sliding rail to drive the sliding assembly, and the sliding assembly drives the other set of sliding assembly through the linkage assembly, so that the two sets of wheel assemblies slide oppositely or reversely, the effect of adjusting the distance between the two sets of wheel assemblies is achieved, and the device can adapt to vehicle bodies of different specifications.

Description

Technical Field

[0001] The utility model relates to the technical field of children's vehicles, in particular to a chassis component for a children's vehicle. Background Art

[0002] Baby strollers are a major category of travel products, including five categories: children's bicycles, strollers, baby walkers, children's tricycles, and children's electric vehicles. With the development of the economy and the improvement of people's lives, toys have become an important entertainment product in people's daily lives, especially in the daily lives of children. Baby strollers are a major category of children's toys. As a tool for carrying children, the comfort and safety of baby strollers are particularly important.

[0003] For example, the Chinese patent publication number CN218477546U, "A load-bearing reinforcement structure for a baby stroller chassis", discloses the following technical solution: This utility model provides a load-bearing reinforcement structure for a baby stroller chassis. The load-bearing reinforcement structure for the baby stroller chassis includes a load-bearing reinforcement structure body consisting of a first bracket, a second bracket, an adjustment assembly, a first reinforcement rib and a second reinforcement rib. The bottom of the second bracket is fixedly installed with a sleeve plate by bolts. The sleeve plate is located on one side of the first bracket and is open and slidably installed with a slide plate. The slide plate is fixedly connected to the bottom of the first bracket by bolts. Two connecting plates are fixedly installed on the slide plate. Both connecting plates are connected to the bottom of the first bracket by bolts. Positioning structures are provided on the sleeve plate and the slide plate. A drainage structure is provided on the side of the sleeve plate away from the slide plate. The load-bearing reinforcement structure for the baby stroller chassis provided by this utility model has the advantages of protecting the bottom, effectively avoiding damage to the lead screw, and enhancing the rigidity after adjustment.

[0004] However, in actual use, when the chassis needs to be installed under the child bicycle body, it is inconvenient to adjust the distance between the wheels on both sides due to different specifications of the bicycle body, and it is not convenient to use it between bicycle bodies of different specifications. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the utility model provides a chassis assembly for a baby carriage.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a chassis assembly for a baby carriage, comprising a chassis, a slide rail fixedly connected to the bottom of the chassis, a wheel assembly is arranged under the slide rail, the wheel assembly comprises a bottom slider, a sliding assembly is arranged above the bottom slider, the sliding assembly comprises a sliding groove, the sliding groove is opened above the chassis, a sliding block is slidably connected to the inner surface of the sliding groove, the sliding block is fixedly connected to the top of the bottom slider, a sliding seat is fixedly connected to the top of the sliding block, the wheel assembly and the sliding assembly are in two groups, which are symmetrically arranged at the front and rear ends of the chassis respectively, wherein a linkage assembly is arranged between the two groups of the sliding assemblies, the linkage assembly comprises a first gear, the first gear is rotatably connected to the top of the chassis, the first gear is meshed with first racks on the left and right sides, the first rack is fixedly connected to the sliding seat, and fixed assemblies are arranged on the left and right sides of the sliding seat.

[0009] Preferably, the wheel assembly also includes a sliding plate, which is fixedly connected to the front of the bottom slider, the front of the sliding plate is slidably connected to a wheel base, the front of the wheel base is rotatably connected to a wheel, and a connecting assembly is arranged above the wheel base.

[0010] Preferably, the connecting assembly includes a hollow sleeve, and a connecting frame is slidably connected to the inner surface of the hollow sleeve. There are two connecting frames, which are symmetrically arranged at the front and rear ends of the hollow sleeve, and the two connecting frames are fixedly connected to the top of the front and rear wheel bases respectively. A driving assembly is arranged on the left side of the hollow sleeve.

[0011] Preferably, the fixing assembly includes a limit bar, which is fixedly connected to the top of the chassis, a fixed seat is movably fitted on the left side of the limit bar, the fixed seat is fixedly connected to the top of the sliding seat, a bolt is threaded through the left side of the fixed seat, and the bolt is threadedly connected to the left side of the limit bar.

[0012] Preferably, the driving assembly includes a second rack, which is fixedly connected to the front side of the sliding plate at the rear, a second gear is meshed with the right side of the second rack, the second gear is rotatably connected to the top of the chassis, a threaded rod is fixedly connected above the second gear, an adjustment plate is provided on the threaded sleeve on the outer surface of the threaded rod, and the adjustment plate is fixedly connected to the right side of the hollow sleeve.

[0013] Preferably, there are two first racks, which are respectively arranged on the left and right sides of the first gear, wherein the first rack on the left is fixedly connected to the front side of the sliding seat at the rear, and the first rack on the right is fixedly connected to the back side of the sliding seat at the front.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a chassis assembly for a baby carriage, which has the following

[0016] Beneficial effects:

[0017] 1. A chassis assembly for a baby carriage, in which a single set of wheel assemblies slides on a slide rail to drive a sliding assembly, and the sliding assembly drives another set of sliding assemblies through a linkage assembly, so that the two sets of wheel assemblies slide toward or in opposite directions, thereby adjusting the distance between the two sets of wheel assemblies, and can adapt to vehicle bodies of different specifications.

[0018] Second, the chassis assembly for a baby carriage will trigger the driving assembly by expanding the distance between the two sets of wheel assemblies, and the driving assembly will drive the connecting assembly to lower the height of the wheel assembly, thereby raising the chassis, so that the large vehicle body has a higher chassis. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a bottom view of the overall structure of the utility model;

[0022] Figure 3 It is the right view of the overall structure of the utility model;

[0023] Figure 4 This is a left view of the overall structure of the utility model;

[0024] Figure 5 This is a schematic diagram of the utility model in which the distance between two sets of wheel assemblies is enlarged;

[0025] Figure 6 For this utility model Figure 1 A schematic diagram of the enlarged structure in the middle.

[0026] In the figure: 1. chassis; 2. slide rail; 3. wheel assembly; 301. bottom slider; 302. sliding plate; 303. wheel base; 304. wheel; 4. sliding assembly; 401. sliding groove; 402. sliding block; 403. sliding seat; 5. linkage assembly; 501. first gear; 502. first rack; 6. fixing assembly; 601. limit strip; 602. fixing seat; 603. bolt; 7. connecting assembly; 701. hollow sleeve; 702. connecting frame; 8. driving assembly; 801. second rack; 802. second gear; 803. threaded rod; 804. adjusting plate. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] Example 1

[0029] like Figure 1-Figure 6 As shown, the utility model provides a chassis assembly for a baby carriage, including a chassis 1, a slide rail 2 is fixedly connected to the bottom of the chassis 1, the cross-sectional shape of the slide rail 2 is trapezoidal, a wheel assembly 3 is arranged below the slide rail 2, the wheel assembly 3 includes a bottom slider 301, the bottom slider 301 is provided with a dovetail groove adapted to the slide rail 2, a slide assembly 4 is arranged above the bottom slider 301, the slide assembly 4 includes a slide groove 401, the slide groove 401 is opened above the chassis 1, the number of the slide grooves 401 is two, and they are arranged in parallel and penetrate the Above the chassis 1, a sliding block 402 is slidably connected to the inner surface of the sliding groove 401, and the sliding block 402 is fixedly connected to the top of the bottom slider 301. A sliding seat 403 is fixedly connected to the top of the sliding block 402. There are two groups of wheel assemblies 3 and sliding assemblies 4, which are symmetrically arranged at the front and rear ends of the chassis 1, respectively. A linkage assembly 5 is arranged between the two groups of sliding assemblies 4. The linkage assembly 5 includes a first gear 501, which is rotatably connected to the top of the chassis 1. The first gear 501 is meshed with first racks 502 on both sides. The first rack 502 is fixedly connected to the sliding seat 403. There are two first racks 502, which are respectively arranged on the left and right sides of the first gear 501. The first rack 502 on the left side is fixedly connected to the front side of the sliding seat 403 at the rear, and the first rack 502 on the right side is fixedly connected to the back side of the sliding seat 403 at the front. The sliding seat 403 is provided with a fixing assembly 6 on the left and right sides. The fixing assembly 6 includes a limit bar 601, which is fixedly connected to the top of the chassis 1. The left side of the limit bar 601 is movable A fixed seat 602 is provided, and the fixed seat 602 is fixedly connected to the top of the sliding seat 403. A bolt 603 is threaded through the left side of the fixed seat 602, and the bolt 603 is threadedly connected to the left side of the limiting bar 601. The limiting bar 601 is provided with several threaded holes compatible with the bolt 603, so as to fix the sliding seat 403 at different positions. The number of the fixing components 6 is two groups, of which two limiting bars 601 are respectively movably fitted with the two first racks 502, and the two fixed seats 602 are respectively connected to the front and rear sliding seats 403.

[0030] In this embodiment, the chassis 1 is installed at the bottom of the body of the baby stroller when in use. When the distance between the two sets of wheel assemblies 3 needs to be enlarged to adapt to the body of the baby stroller, the bottom slider 301 located in the front is first slid forward on the slide rail 2. The sliding of the bottom slider 301 drives the sliding block 402 to slide in the sliding groove 401, and then drives the sliding seat 403 to slide toward the front. At this time, the sliding seat 403 pulls the first rack 502, and the first rack 502 drives the first gear 501, and then drives another first rack 502. The other first rack 502 will push the rear sliding seat 403 backwards, and then drive the rear bottom slider 301 to slide backwards on the slide rail 2 through the sliding block 402, so that the distance between the two bottom sliders 301 is expanded to adapt to vehicle bodies of different specifications. After adjusting to a suitable state, the bolts 603 on the fixing seat 602 on the sliding seat 403 are inserted into the corresponding threaded holes on the limiting strip 601 and tightened to fix the sliding seat 403, so as to fix the distance between the two bottom sliders 301.

[0031] Example 2

[0032] like Figure 1-Figure 6 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the wheel assembly 3 also includes a sliding plate 302, the sliding plate 302 is fixedly connected to the front of the bottom slider 301, the sliding plate 302 is slidably connected to the wheel base 303 at the front, the wheel base 303 is rotatably connected to the wheel 304 at the front, and a connecting assembly 7 is arranged above the wheel base 303, the connecting assembly 7 includes a hollow sleeve 701, and the inner surface of the hollow sleeve 701 is slidably connected to a connecting frame 702, the shape of the connecting frame 702 is L-shaped, and the number of the connecting frames 702 is two, which are symmetrically arranged on the hollow sleeves 701 and 702. At the front and rear ends of the sleeve 701, two connecting frames 702 are fixedly connected to the top of the front and rear wheel bases 303 respectively. A driving assembly 8 is arranged on the left side of the hollow sleeve 701. The driving assembly 8 includes a second rack 801. The second rack 801 is fixedly connected to the front of the sliding plate 302 located at the rear. A second gear 802 is meshed with the right side of the second rack 801. The second gear 802 is rotatably connected to the top of the chassis 1. A threaded rod 803 is fixedly connected to the top of the second gear 802. An adjusting piece 804 is provided on the threaded sleeve on the outer surface of the threaded rod 803. The adjusting piece 804 is fixedly connected to the right side of the hollow sleeve 701.

[0033] In this embodiment, when the rear bottom slider 301 slides backward on the slide rail 2, it will push the sliding plate 302, and the sliding plate 302 will pull the second rack 801, and the second rack 801 will drive the second gear 802 to rotate the threaded rod 803. The rotation of the threaded rod 803 will cause the adjusting plate 804 to descend and then drive the hollow sleeve 701 to descend. The descent of the hollow sleeve 701 will drive the connecting frame 702 to make the wheel base 303 descend on the sliding plate 302. At this time, as the distance between the two bottom sliders 301 increases, the height of the wheel base 303 decreases and the chassis 1 is lifted, so that the chassis 1 has a higher height after being assembled on a large vehicle body.

Claims

1. A chassis assembly for a baby carriage, comprising a chassis (1), characterized in that: A slide rail (2) is fixedly connected to the bottom of the chassis (1), a wheel assembly (3) is arranged below the slide rail (2), the wheel assembly (3) comprises a bottom slider (301), a slide assembly (4) is arranged above the bottom slider (301), the slide assembly (4) comprises a slide groove (401), the slide groove (401) is opened above the chassis (1), a slide block (402) is slidably connected to the inner surface of the slide groove (401), the slide block (402) is fixedly connected to the top of the bottom slider (301), and a slide block (402) is fixedly connected to the top of the slide block (402). The chassis (403) comprises two groups of wheel assemblies (3) and sliding assemblies (4), which are symmetrically arranged at the front and rear ends of the chassis (1), wherein a linkage assembly (5) is arranged between the two groups of sliding assemblies (4), and the linkage assembly (5) comprises a first gear (501), the first gear (501) is rotatably connected to the top of the chassis (1), the first gear (501) is meshed with first racks (502) on the left and right sides, the first rack (502) is fixedly connected to the sliding seat (403), and the sliding seat (403) is provided with fixed assemblies (6) on the left and right sides.

2. A chassis assembly for a baby carriage according to claim 1, characterized in that: The wheel assembly (3) further comprises a sliding plate (302), wherein the sliding plate (302) is fixedly connected to the front of the bottom slider (301), the sliding plate (302) is slidably connected to a wheel base (303) at the front, the wheel base (303) is rotatably connected to a wheel (304) at the front, and a connecting assembly (7) is arranged above the wheel base (303).

3. A chassis assembly for a baby carriage according to claim 2, characterized in that: The connection assembly (7) comprises a hollow sleeve (701), and a connection frame (702) is slidably connected to the inner surface of the hollow sleeve (701).

4. A chassis assembly for a baby carriage according to claim 3, characterized in that: There are two connecting frames (702), which are symmetrically arranged at the front and rear ends of the hollow sleeve (701). The two connecting frames (702) are fixedly connected to the tops of the front and rear wheel bases (303) respectively. A driving component (8) is arranged on the left side of the hollow sleeve (701).

5. A chassis assembly for a baby carriage according to claim 1, characterized in that: The fixing assembly (6) comprises a limiting bar (601), wherein the limiting bar (601) is fixedly connected to the top of the chassis (1), a fixing seat (602) is movably fitted on the left side of the limiting bar (601), the fixing seat (602) is fixedly connected to the top of the sliding seat (403), a bolt (603) is threadedly penetrated on the left side of the fixing seat (602), and the bolt (603) is threadedly connected to the left side of the limiting bar (601).

6. A chassis assembly for a baby carriage according to claim 4, characterized in that: The driving assembly (8) comprises a second rack (801), the second rack (801) being fixedly connected to the front of the sliding plate (302) located at the rear, a second gear (802) being meshed on the right side of the second rack (801), the second gear (802) being rotatably connected to the top of the chassis (1), a threaded rod (803) being fixedly connected to the top of the second gear (802), an adjustment sheet (804) being threadedly sleeved on the outer surface of the threaded rod (803), and the adjustment sheet (804) being fixedly connected to the right side of the hollow sleeve (701).

7. A chassis assembly for a baby carriage according to claim 1, characterized in that: The number of the first racks (502) is two, which are respectively arranged on the left and right sides of the first gear (501).

8. A chassis assembly for a baby carriage according to claim 7, characterized in that: The first rack (502) located on the left side is fixedly connected to the front side of the sliding seat (403) located at the rear.

9. A chassis assembly for a baby carriage according to claim 7, characterized in that: The first rack (502) located on the right side is fixedly connected to the back side of the sliding seat (403) located in the front.

Images