Pulley reinforcing structure of baby carriage
By installing protective components outside the mobile wheel of the stroller, the problem of easy damage to the universal wheel shaft is solved, the safety of the overall device is improved, and the replacement process of the mobile wheel is simplified.
Patent Information
- Application Number
- CN202421534358.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-07-01
AI Technical Summary
The existing stroller universal wheel shaft is susceptible to bidirectional pressure and impact when used, resulting in damage, and the overall device is poorly safe.
A pulley reinforcement structure for a hand-push stroller is designed. By installing protective components outside the moving wheel, including fixed shafts, sliders, protective plates and springs, the moving wheel is protected, reducing direct damage to the moving wheel by impact, and changing the moving wheel is conveniently replaced by typing the fixed block.
It effectively improves the protection of the stroller pulley, enhances the safety of the overall device, and simplifies the replacement process of the mobile wheel, making it more convenient for use.
Smart Images

Figure CN222646092U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of baby carriages, in particular to a pulley reinforcement structure of a hand-pushed baby carriage. Background Art
[0002] A baby stroller is a tool vehicle designed to facilitate outdoor activities for babies. There are various models that make it easy for parents to take their babies outdoors. Pullways are usually provided at the bottom of the stroller to make it easier for the operator to push the entire device.
[0003] The front wheels of existing baby strollers are generally universal wheels, which facilitate the steering of the baby stroller. However, the existing universal wheels are generally connected to the device body only by a rotating shaft, which means that the rotating shaft has to support both the device and the rotation of the universal wheel body. There is generally a large stress inside the universal wheel, and once it is hit, it is very easy to be damaged. The safety of the overall device is poor. Therefore, a pulley reinforcement structure for a hand-pushing baby stroller is proposed to solve the above problem. Utility Model Content
[0004] In order to remedy the above deficiencies, the utility model provides a pulley reinforcement structure for a baby stroller, aiming to improve the problem in the prior art that "the universal wheel shaft is generally subjected to bidirectional pressure and impact during use and is easily damaged, and the overall device has poor safety".
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a pulley reinforcement structure of a hand-pushing baby stroller, including a support frame, a vehicle body is installed on the top of the support frame, a support leg is passed through and fixedly connected to the front end of the support frame, the bottom end of the support leg is fixedly connected to a connecting frame, a protective component is installed at the bottom end of the connecting frame, the protective component includes a fixed shaft, the fixed shaft passes through and is slidably connected to the bottom end of the connecting frame, the bottom end of the fixed shaft is fixedly connected to a storage plate, the bottom end of the storage plate is installed with a movable wheel, and the top end of the connecting frame is installed with a connecting component.
[0006] As a further description of the above technical solution:
[0007] The protection component also includes a slider 1, which penetrates and is slidably connected to the right end of the storage plate. The right end of the slider 1 is slidably connected to the front baffle, and the right end of the front baffle is fixedly connected to the protection plate.
[0008] As a further description of the above technical solution:
[0009] The front end of the storage plate passes through and is slidably connected with a second slide block, the front end of the second slide block is fixedly connected with a slide rod, and the front end of the slide rod is fixedly connected with a side baffle.
[0010] As a further description of the above technical solution:
[0011] The left end of the slider 1 is fixedly connected to a protection spring 1, and the left end of the protection spring 1 is fixedly connected to the inner wall of the storage plate.
[0012] As a further description of the above technical solution:
[0013] The rear end of the sliding block 2 is fixedly connected with a protection spring 2, and the rear end of the protection spring 2 is fixedly connected to the inner wall of the storage plate.
[0014] As a further description of the above technical solution:
[0015] The sliding rod passes through and is slidably connected to the left end of the front baffle, and the protective plate is arranged in an arc shape.
[0016] As a further description of the above technical solution:
[0017] The top end of the connecting frame is fixedly connected with a positioning block, the left end of the fixed shaft is provided with a positioning groove, the positioning groove and the positioning block are adapted, the right end of the fixed shaft is provided with a fixing groove, the left end of the connecting component passes through and is slidably connected with a fixing block, the fixing block and the fixing groove are adapted.
[0018] As a further description of the above technical solution:
[0019] The rear end of the fixing block is fixedly connected with a fixing spring, and the rear end of the fixing spring is fixedly connected to the inner wall of the connecting frame.
[0020] The utility model has the following beneficial effects:
[0021] 1. In the present invention, by arranging a protective component outside the moving wheel, the moving wheel can be protected. When the device is subjected to external impact, the protective plate can protect the moving wheel from being directly impacted, which can have a reinforcing effect and improve the safety of the overall device.
[0022] 2. In the utility model, the fixing block can be driven out of the fixing groove by toggling the fixing block, and then the whole protection assembly and the moving wheel can be removed. In this way, there is no need to move the vehicle body when replacing the moving wheel, and the whole device is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a three-dimensional structural schematic diagram of the overall device in the utility model;
[0024] Figure 2 It is a schematic diagram of the three-dimensional structure section of the protection component in the utility model;
[0025] Figure 3 It is a schematic diagram of the three-dimensional structural cross-section of the connecting component in the utility model.
[0026] Legend:
[0027] 1. Support frame; 2. Vehicle body; 3. Support legs; 4. Connecting frame; 5. Moving wheels; 6. Protective assembly; 61. Fixed shaft; 62. Slider 1; 63. Protective spring 1; 64. Slider 2; 65. Protective spring 2; 66. Storage plate; 67. Front baffle; 68. Protective plate; 69. Slide bar; 610. Side baffle; 7. Connecting assembly; 71. Positioning slot; 72. Positioning block; 73. Fixed slot; 74. Fixed block; 75. Fixed spring. DETAILED DESCRIPTION
[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0029] Reference Figure 1 - Figure 3 The utility model provides an embodiment: a pulley reinforcement structure of a hand-pushing baby stroller, comprising a support frame 1 for connecting the overall device, a body 2 for placing a baby is installed on the top of the support frame 1, a front end of the support frame 1 passes through and is fixedly connected with a support leg 3 for supporting the overall device, the bottom end of the support leg 3 is fixedly connected with a connecting frame 4 for connecting two sets of adjacent support legs 3, by using the connecting frame 4 to connect the two sets of adjacent support legs 3, the stability of the support of the support leg 3 can be increased, a protective component 6 for protecting a moving wheel 5 is installed at the bottom end of the connecting frame 4, the protective component 6 includes a fixed shaft 61 for fixing the overall moving wheel 5, the fixed shaft 61 passes through and is slidably connected to the bottom end of the connecting frame 4, the bottom end of the fixed shaft 61 is fixedly connected with a storage plate 66 for accommodating a slider 1 62 and a slider 2 64, the bottom end of the storage plate 66 is installed with a moving wheel 5 for supporting the movement of the overall device, the moving wheel 5 is installed on the bottom end of the storage plate 66 by bolts, so that the stability is better, and a connecting component 7 for fixing the protective component 6 is installed at the top of the connecting frame 4.
[0030] Reference Figure 1 - Figure 3The protection component 6 also includes a slider 62 for driving the front baffle 67 to reset. The slider 62 passes through and is slidably connected to the right end of the storage plate 66. The right end of the slider 62 is slidably connected to the front baffle 67 for protecting the right end of the moving wheel 5. The front baffle 67 can slide back and forth on the right end of the slider 62 and cannot be separated from the right end of the slider 62. The right end of the front baffle 67 is fixedly connected to a protection plate 68 for directly receiving the impact. The protection plate 68 is made of rubber material and will be elastically deformed when impacted. The front end of the storage plate 66 passes through and is slidably connected to a slider 64 for supporting a slide rod 69. The front end of the slider 64 is fixedly connected to a slide rod 69 for connecting the slider 64 and the side baffle 610. The front end of the slide rod 69 is fixedly connected to the side baffle 610 for protecting the side of the moving wheel 5 The left end of slider 1 62 is fixedly connected with a protective spring 1 63 for pushing slider 1 62 outward, and the left end of protective spring 1 63 is fixedly connected to the inner wall of receiving plate 66. When slider 1 62 moves forward under impact, protective spring 1 63 will push slider 1 62 to the right to reset it to the right. The rear end of slider 2 64 is fixedly connected with a protective spring 2 65 for driving slider 2 64 to reset. The rear end of protective spring 2 65 is fixedly connected to the inner wall of receiving plate 66. Protective spring 2 65 will always push slider 2 64 forward. Sliding rod 69 passes through and is slidably connected to the left end of front baffle 67. When front baffle 67 moves left under impact, it will not drive sliding rod 69 to move left synchronously. Protective plate 68 is set to an arc shape. By setting protective plate 68 to an arc shape, part of the impact can be decomposed.
[0031] Reference Figure 1 - Figure 3 The top of the connecting frame 4 is fixedly connected with a positioning block 72 for fixing the shaft 61 to prevent it from rotating. The left end of the fixing shaft 61 is provided with a positioning groove 71 for the positioning block 72 to slide. The positioning groove 71 and the positioning block 72 are adapted to each other. When installing the fixing shaft 61, the positioning block 72 needs to be aligned with the positioning groove 71 before the fixing shaft 61 can be inserted into the interior of the connecting frame 4. The right end of the fixing shaft 61 is provided with a fixing groove 73 for accommodating a fixing block 74. The left end of the connecting assembly 7 passes through and is slidably connected with a fixing block 74 for fixing the shaft 61. The fixing block 74 and the fixing groove 73 are adapted to each other. When the fixing block 74 is stuck in the interior of the fixing groove 73, the fixing shaft 61 will be fixed and cannot move up and down. The rear end of the fixing block 74 is fixedly connected with a fixing spring 75 for pushing the fixing block 74. The rear end of the fixing spring 75 is fixedly connected to the inner wall of the connecting frame 4, and the fixing spring 75 will always push the fixing block 74 outward.
[0032] Working principle: When the entire device is impacted from the right side, the protective plate 68 will be forced to drive the front baffle 67 and the slider 62 to move to the left, so as to prevent the impact from damaging the moving wheel 5 in the first time. At the same time, the protective spring 63 will be forced to shrink under the action of the slider 62. When the impact is over, the protective spring 63 will push the slider 62 to drive the front baffle 67 and the protective plate 68 to move to the right and reset. When the device is impacted from the side, the side baffle 610 and the slide bar 69 will be forced to move backward, and the front baffle 67 will also be driven by the slide bar 69 to move synchronously. When the impact is over, the protective spring 2 65 will push the slider 2 64 to drive the slide bar 69, the side baffle 610, and the front baffle 67 to move to the left and reset.
[0033] When the moving wheel 5 needs to be replaced, the fixing block 74 can be pushed inward first to drive the fixing block 74 out of the fixing groove 73, and then the fixing shaft 61 can be pulled out downward, so that the overall protective assembly 6 can be removed, and then the moving wheel 5 can be removed from the bottom end of the storage plate 66 and the newly replaced moving wheel 5 can be installed according to the original path, and then the positioning groove 71 can be aligned with the positioning block 72 and the fixing shaft 61 can be inserted into the interior of the connecting frame 4 according to the original path, and then the fixing block 74 can be loosened, and the fixing spring 75 will push the fixing block 74 outward to make it move outward and fit into the interior of the fixing groove 73. At this time, the fixing shaft 61 will be re-fixed and the moving wheel 5 will be replaced.
[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A pulley reinforcement structure for a baby stroller, comprising a support frame (1), characterized in that: The vehicle body (2) is installed at the top of the support frame (1); the front end of the support frame (1) passes through and is fixedly connected to a support leg (3); the bottom end of the support leg (3) is fixedly connected to a connecting frame (4); the bottom end of the connecting frame (4) is installed with a protective component (6); the protective component (6) comprises a fixed shaft (61); the fixed shaft (61) passes through and is slidably connected to the bottom end of the connecting frame (4); the bottom end of the fixed shaft (61) is fixedly connected to a storage plate (66); the bottom end of the storage plate (66) is installed with a moving wheel (5); and the top end of the connecting frame (4) is installed with a connecting component (7).
2. The pulley reinforcement structure of a baby stroller according to claim 1, characterized in that: The protective assembly (6) further comprises a slider (62), wherein the slider (62) penetrates through and is slidably connected to the right end of the storage plate (66), the right end of the slider (62) is slidably connected to a front baffle (67), and the right end of the front baffle (67) is fixedly connected to a protective plate (68).
3. The pulley reinforcement structure of a baby stroller according to claim 2, characterized in that: The front end of the storage plate (66) passes through and is slidably connected to a second slider (64), the front end of the second slider (64) is fixedly connected to a slide rod (69), and the front end of the slide rod (69) is fixedly connected to a side baffle (610).
4. The pulley reinforcement structure of a baby stroller according to claim 2, characterized in that: The left end of the slider (62) is fixedly connected to a protection spring (63), and the left end of the protection spring (63) is fixedly connected to the inner wall of the storage plate (66).
5. The pulley reinforcement structure of a baby stroller according to claim 3, characterized in that: The rear end of the second slide block (64) is fixedly connected to a second protection spring (65), and the rear end of the second protection spring (65) is fixedly connected to the inner wall of the storage plate (66).
6. The pulley reinforcement structure of a baby stroller according to claim 3, characterized in that: The sliding rod (69) passes through and is slidably connected to the left end of the front baffle (67), and the protective plate (68) is arranged in an arc shape.
7. The pulley reinforcement structure of a baby stroller according to claim 1, characterized in that: The top end of the connecting frame (4) is fixedly connected with a positioning block (72); the left end of the fixed shaft (61) is provided with a positioning groove (71), and the positioning groove (71) and the positioning block (72) are matched; the right end of the fixed shaft (61) is provided with a fixing groove (73); the left end of the connecting component (7) is penetrated and slidably connected with a fixing block (74), and the fixing block (74) and the fixing groove (73) are matched.
8. The pulley reinforcement structure of a baby stroller according to claim 7, characterized in that: The rear end of the fixing block (74) is fixedly connected to a fixing spring (75), and the rear end of the fixing spring (75) is fixedly connected to the inner wall of the connecting frame (4).