Braking transmission system and braking method for baby stroller

Abstract

The present invention provides a brake transmission system and a brake method for a baby stroller. The brake transmission system is arranged on a shaft body through a driving member, and the driving member is located at a fixed position of the shaft body. The driving member rotates to drive the transmission member to move along the axial direction of the shaft body, and the actuator and the transmission member are slidably connected. The actuator and the transmission member move synchronously. The entire brake transmission system is arranged on the outside of the shaft body and the wheel for easy disassembly and assembly, and can ensure that no matter what direction the wheel is in, the movement of the transmission member can be transmitted to the brake pin through the actuator, driving the brake pin to insert or pull out the brake tooth, so as to achieve the braking or release of the wheel. When the wheel assembly of the baby stroller uses a brake device including the brake transmission system of the present invention, the driving members of the two brake devices can be linked through a related mechanism, so as to achieve double brakes with one step.

Description

Technical Field

[0001] The present invention relates to the technical field of baby strollers, and in particular to a brake transmission system and a brake method for a baby stroller. Background Art

[0002] Universal casters are so-called movable casters, and their structure allows 360-degree rotation. The wheel assembly of a universal caster generally includes a wheel, an axle body, an axle seat and a wheel bracket. The axle body is arranged at the upper end of the axle seat, the wheel bracket is also called a wheel fork, which is arranged at the lower end of the axle seat, and the wheel is arranged in the wheel bracket. The brake transmission system used in the wheel assembly of the universal caster used in the baby stroller of the prior art is independently arranged on a single wheel. When braking, it is necessary to control each independent brake device multiple times to brake multiple wheels one by one, which is cumbersome to operate. In addition, when the wheel rotates in a universal direction, the brake device as a whole will also rotate with the wheel, resulting in inconvenience in use. Moreover, the brake device of the universal caster used in the baby stroller of the prior art is difficult to disassemble and cannot be quickly disassembled. Moreover, the brake transmission system of the prior art used in the baby stroller cannot achieve double brakes when braking, which does not meet the mandatory requirements of some European countries.

[0003] It can be seen that whether it is possible to provide an improved brake transmission system and braking method based on the deficiencies in the prior art has become a technical problem that needs to be urgently solved by those skilled in the art. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the brake transmission system of the prior art baby stroller, which is cumbersome to operate, inconvenient to use and cannot be quickly disassembled. In addition, the brake device of the baby stroller uses the existing brake transmission system, which cannot achieve the defect of one-step double brake when braking. A brake transmission system and a braking method are provided.

[0005] The present invention solves the above technical problems through the following technical solutions:

[0006] A brake transmission system for a baby stroller, comprising:

[0007] Driving parts;

[0008] A transmission member, wherein the transmission member is slidably connected to the driving member, and the driving member drives the transmission member to move along a preset direction;

[0009] An actuator, wherein the actuator is slidably connected to the transmission member, and the actuator and the transmission member move synchronously;

[0010] An elastic member is connected to the transmission member and is used to reset the transmission member.

[0011] Preferably, the system is provided on a wheel assembly of the baby stroller, wherein the wheel assembly comprises an axle body and an axle seat;

[0012] The driving member is arranged on the shaft body;

[0013] The transmission member is arranged on the shaft body, and the driving member drives the transmission member to move along the axial direction of the shaft body;

[0014] One end of the elastic member is connected to the transmission member, and the other end is connected to the shaft seat.

[0015] Preferably, the transmission member is annular and is sleeved on the shaft. When the driving member drives the transmission member to move along the axial direction of the shaft, when the wheel rotates to any position, the transmission member maintains contact with the driving member, so that the braking action is transmitted downward.

[0016] Preferably, the driving member is sleeved on the shaft and can rotate around the shaft.

[0017] Preferably, the elastic member is a spring.

[0018] Preferably, the brake transmission system for baby strollers is also used for pet strollers.

[0019] A brake device uses the above-mentioned brake transmission system for a baby stroller.

[0020] A braking method, which uses the above-mentioned braking device, comprises the following steps:

[0021] The first step (S1) is to start the driving member to drive the transmission member to move along a preset direction;

[0022] In the second step (S2), the transmission member drives the actuator to move synchronously;

[0023] The third step (S3) is to use the elastic member to reset the transmission member.

[0024] A baby stroller using the above-mentioned brake device.

[0025] A pet stroller using the above-mentioned brake device.

[0026] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present invention.

[0027] The positive and progressive effect of the present invention is that the brake transmission system of the present invention is arranged on the shaft body through a driving member, and will not rotate universally with the wheel, and the driving member is located at a fixed position of the shaft body. The driving member drives the transmission member to move along the axial direction of the shaft body, the actuator and the transmission member are slidably connected, and the actuator and the transmission member move synchronously. The entire brake transmission system is arranged on the outside of the shaft body and the wheel for easy disassembly and assembly, and it can ensure that no matter what direction the wheel is in, the movement of the transmission member can be transmitted to the brake pin through the actuator, driving the brake pin to insert or pull out the brake tooth, so as to achieve braking or releasing the wheel, and when the wheel assembly of the baby stroller uses a brake device including the brake transmission system of the present invention, the driving members of the two brake devices can be linked through a related mechanism, so as to achieve double brakes with one step. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 Schematic diagram of the structure of a brake device according to a preferred embodiment of the present invention.

[0029] Figure 2 Schematic diagram of the structure of the brake transmission system of the preferred embodiment of the present invention.

[0030] Figure 3 Schematic diagram of the structure of a driving member according to a preferred embodiment of the present invention.

[0031] Figure 4 Schematic diagram of the structure of the transmission member of the preferred embodiment of the present invention.

[0032] Figure 5 This is a schematic diagram of the connection relationship and structure of the actuator and brake pin in a preferred embodiment of the present invention.

[0033] Figure 6 It is a schematic structural diagram of the brake teeth according to a preferred embodiment of the present invention.

[0034] Figure 7 The figure is a schematic structural diagram of a baby stroller according to a preferred embodiment of the present invention.

[0035] Figure 8 Flow chart of a braking method according to a preferred embodiment of the present invention.

[0036] Description of reference numerals:

[0037] Wheel 1

[0038] Axis 2

[0039] Axle seat 3

[0040] Wheel bracket 4

[0041] Drive Component 5

[0042] Annular groove 52

[0043] Guide groove 51

[0044] Transmission parts 6

[0045] Transmission gear 62

[0046] Execution 7

[0047] First executive item 71

[0048] Second executive item 72

[0049] Elastic connector 73

[0050] Brake tooth 8

[0051] Pin slot 81

[0052] Brake pin 9

[0053] Protrusion 91

[0054] Elastic member 10

[0055] Lining 11

[0056] Front wheel set 12

[0057] The first wheel assembly 121

[0058] The second wheel assembly 122

[0059] Rear wheel set 13

[0060] The third wheel assembly 131

[0061] Fourth wheel assembly 132

[0062] Front pedal 14

[0063] Rear pedal 15 DETAILED DESCRIPTION

[0064] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0065] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0066] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0067] like Figure 1 and Figure 2 As shown, this embodiment provides a brake transmission system for a baby stroller, which is used for a wheel assembly, the wheel assembly includes a wheel 1, an axle body 2, an axle seat 3 and a wheel bracket 4, and the brake transmission system includes a driving member 5, a transmission member 6, an actuator 7, and an elastic member 10.

[0068] like Figure 1-Figure 3 As shown, in this embodiment, the driving member 5 is in the shape of a circular sleeve, and the driving member 5 is sleeved on the shaft body 2 and can rotate around the shaft body 2. In other embodiments, the driving member is not limited to providing driving force in a rotational manner.

[0069] Specifically, an annular groove 52 is further provided on the base of the driving member 5, and a plurality of guide grooves 51 are provided on the side wall of the driving member 5, and the guide grooves 51 are used to guide the movement of the transmission member 6, and the guide grooves 51 are evenly distributed along the circumference of the driving member 5. Moreover, the guide grooves 51 are in a trapezoidal shape, and chamfers are provided at the corners, so that the friction between the transmission member 6 and the driving member 5 can be effectively reduced, thereby ensuring that the brake device can work smoothly and stably, and preventing the driving member 5 and the transmission member 6 from being stuck.

[0070] like Figure 4 As shown, in this embodiment, the transmission member 6 is also annular and sleeved on the shaft body 2. The transmission member 6 is also provided with a transmission tooth 62. The transmission tooth 62 is arranged on the side of the transmission member 6 close to the driving member 5 (i.e., corresponding to the position of the guide groove 51). The shape and number of the transmission tooth 62 match the shape and number of the guide groove 51. The transmission tooth 62 is slidably arranged in the guide groove 51 of the driving member 5 so that when the driving member 5 rotates around the shaft body 2, the transmission tooth 62 will be guided to slide downward from the guide groove 51, so that the entire transmission member 6 moves along the axial direction of the shaft body 2, that is, Figure 3 More specifically, the connection between the transmission tooth 62 and the guide groove 51 is also provided with a chamfer, so as to further reduce the direct friction with the guide groove 51, which is beneficial to further improve the stability of the working process of the brake device.

[0071] In this embodiment, the number of guide grooves 51 and the number of transmission teeth 62 are both four. Of course, those skilled in the art should understand that the number of guide grooves 51 and the number of transmission teeth 62 can also be other numbers, and the guide grooves 51 and the transmission teeth 62 are not limited to the above shapes, for example, they can also be arc-shaped grooves and arc-shaped teeth, etc.

[0072] like Figure 5 As shown, the actuator 7 is a set of mechanisms for transmitting the action of the transmission member 6 to the brake pin 9. The actuator 7 includes a first actuator 71 and a second actuator 72.

[0073] The first actuator 71 is slidably arranged on the axle seat 3, and one end of the first actuator 71 is arranged in a semicircular arc shape and is in sliding contact with the transmission member 6. When the wheel 1 rotates, the first actuator 71 will also slide on the transmission member 6 at the same time, thereby ensuring that when the wheel 1 rotates, the transmission member 6 and the first actuator 71 always maintain contact, and then the first actuator 71 can always receive the movement of the transmission member 6, and can always maintain synchronous movement with the transmission member 6.

[0074] In this embodiment, a sliding limit groove is provided on the shaft seat 3, and the first actuator 71 is arranged in the sliding limit groove. More specifically, a limit opening is provided at one end of the sliding limit groove close to the transmission member 6. One semicircular end of the first actuator 71 passes through the limit opening to maintain sliding contact with the transmission member 6, and the other end of the first actuator 71 is configured to be unable to pass through the limit opening, thereby preventing the first actuator 71 from producing unnecessary excessive displacement.

[0075] The other end of the first actuator 71 is arranged in a crescent shape, and the second actuator 72 is slidably arranged on the inner side of the wheel bracket 4. A brake pin 9 is arranged at one end of the second actuator 72, and the other end, i.e., the end close to the first actuator 71, is arranged in a semicircular arc shape and is in sliding contact with the crescent-shaped end of the first actuator 71. The above-mentioned structural form increases the sliding contact area, which is conducive to movement toward the second actuator 72.

[0076] The brake transmission system of this embodiment includes two sets of actuators 7, which are symmetrically arranged on both sides of the wheel 1, so as to ensure the stability of the brake device and ensure that the brake device can still work normally when the actuator 7 on one side is damaged. Of course, in other embodiments, only one set of actuators 7 can also be used.

[0077] like Figure 2 As shown, the elastic member 10 is arranged between the transmission member 6 and the shaft seat, so that the transmission member 6 can be rebounded to its original position, which is convenient for the use of the brake device and improves efficiency. In this embodiment, the elastic member 10 is a spring, and in other embodiments, it can also be rubber, etc.

[0078] like Figure 1 , Figure 5 and Figure 6 As shown, the brake device in this embodiment includes not only the above-mentioned transmission system, but also a brake tooth 8 and a brake pin 9.

[0079] The brake tooth 8 is fixed on the wheel 1 through the axle of the wheel 1 and rotates synchronously with the wheel 1. The brake tooth 8 is in the shape of a disk, and a plurality of evenly distributed pin grooves 81 are formed on the edge of the disk.

[0080] like Figure 5 As shown, the brake pin 9 is arranged at one end of the second actuator 72 close to the brake tooth 8. Specifically, an elastic connector 73 is arranged between the brake pin 9 and the second actuator. The second actuator is provided with a mounting groove, and the elastic connector 73 is arranged in the mounting groove. The brake pin 9 and the second actuator 72 are connected by the elastic connector 73, so that the brake pin 9 and the brake tooth 8 can be prevented from being stuck to each other, and the second actuator 72 can be reset after the action is completed. The brake pin 9 is inserted into or pulled out of the brake tooth 8 as the actuator 7 moves, thereby braking or releasing the wheel 1.

[0081] Specifically, in the present embodiment, a protrusion 91 is provided on one side of the brake pin 9 close to the brake tooth 8. The shape of the protrusion 91 matches the tooth groove, and the protrusion 91 can be inserted into the tooth groove, thereby braking or releasing the wheel 1. The above-mentioned structural form can not only improve the strength of the brake pin 9 and thus increase its service life, but also provide additional space for setting the actuator 7, thereby reducing the impact of setting the actuator 7 on the movement of the wheel 1.

[0082] The brake device further includes a guiding mechanism and a connecting member. The guiding mechanism is disposed on the wheel bracket 4 and connected to the driving member 5 . The connecting member connects the guiding mechanism and the driving member 5 . The guiding mechanism drives the driving member 5 to rotate around the shaft 2 .

[0083] Specifically, one end of the connecting member is connected to the guide mechanism, and the other end is coiled in the annular groove 52 of the driving member 5, so that the guiding mechanism can drive the driving member 5 to rotate when pulling the connecting member. In this embodiment, the connecting member is a steel rope, and in other embodiments, the connecting member can also be a nylon rope or the like.

[0084] like Figure 1 As shown, the brake device also includes an inner lining 11, which is fixedly disposed on the shaft body 2 and disposed between the driving member 5 and the transmission member 6. A slide groove is provided on the inner lining 11, and the transmission tooth 62 is slidably disposed in the slide groove.

[0085] In this embodiment, the above-mentioned structural form can prevent the transmission tooth 62 from rotating, ensure that the transmission tooth 62 slides along a predetermined trajectory, and improve the braking efficiency.

[0086] like Figure 8 As shown, this embodiment also provides a braking method, wherein the braking device mentioned above, the braking method comprises the following steps:

[0087] Step 1: Start the driving member 5 to drive the transmission member 6 to move along a preset direction;

[0088] Step 2: The transmission member 6 drives the actuator 7 to move synchronously;

[0089] Step 3: Reset the transmission member 6 using the elastic member 10 .

[0090] like Figure 7 As shown, this embodiment provides a baby stroller, which is used as shown in FIG. Figure 1 Braking device shown.

[0091] In this embodiment, the baby stroller includes a front wheel group 12 and a rear wheel group 13 . The front wheel group 12 includes a first wheel assembly 121 and a second wheel assembly 122 . The rear wheel group 13 includes a third wheel assembly 131 and a fourth wheel assembly 132 .

[0092] The brake device includes a first brake device, a second brake device, a third brake device, a fourth brake device, a front pedal 14 and a rear pedal 15, wherein the front pedal 14 and the rear pedal 15 are equivalent to the above-mentioned guide device.

[0093] The first brake device is arranged on the first wheel assembly 121, the second brake device is arranged on the second wheel assembly 122, and the front pedal 14 is arranged on the front wheel group 12. The front pedal 14 is connected to the driving member 5 of the first brake device and the driving member 5 of the second brake device. The front pedal 14 controls the first brake device and the second brake device to brake or release synchronously, that is, the front wheel group 12 can be braked with one step through the front pedal 14.

[0094] The third brake device is arranged on the third wheel assembly 131, the fourth brake device is arranged on the fourth wheel assembly 132, and the rear pedal 15 is arranged on the rear wheel group 13. The rear pedal 15 is connected to the driving member 5 of the third brake device and the driving member 5 of the fourth brake device. The rear pedal 15 controls the third brake device and the fourth brake device to brake or release synchronously, that is, the rear wheel group 13 can be braked with one step through the rear pedal 15.

[0095] In this embodiment, the above-mentioned structural form is adopted to realize double brakes by stepping on one foot, which is convenient for the use of the baby stroller and improves the reliability of braking.

[0096] Since the structures and functions of pet strollers and baby strollers are very similar, the specific structure of the baby stroller in the above embodiment can be applied to pet strollers, and the same is true for strollers for transporting goods.

[0097] It should be noted that in the claims and description of this patent, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one" do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. A brake transmission system for a baby stroller, characterized in that: include: Driving parts; A transmission member, wherein the transmission member is slidably connected to the driving member, and the driving member drives the transmission member to move along a preset direction; An actuator, wherein the actuator is slidably connected to the transmission member, and the actuator and the transmission member move synchronously; an elastic member, the elastic member being connected to the transmission member and being used to reset the transmission member; A brake transmission system for a baby stroller is provided on a wheel assembly of the baby stroller, wherein the wheel assembly comprises an axle body and an axle seat; The driving member is arranged on the shaft body; The transmission member is arranged on the shaft body, and the driving member drives the transmission member to move along the axial direction of the shaft body; One end of the elastic member is connected to the transmission member, and the other end is connected to the shaft seat; The driving member is sleeved on the shaft and can rotate around the shaft; A plurality of guide grooves are provided on the side wall of the driving member, and the guide grooves are used to guide the movement of the transmission member. The guide grooves are evenly distributed along the circumference of the driving member. The transmission member is annular and sleeved on the shaft body. The transmission member is also provided with transmission teeth, and the transmission teeth are arranged on the side of the transmission member close to the driving member. The positions of the transmission teeth and the guide grooves correspond, and the shape and number of the transmission teeth match the shape and number of the guide grooves. The transmission teeth are slidably arranged in the guide grooves of the driving member so that when the driving member rotates around the shaft body, the transmission teeth will be guided to slide downward from the guide grooves, so that the entire transmission member moves along the axial direction of the shaft body.

2. The brake transmission system for a baby stroller according to claim 1, characterized in that: The transmission member is annular and is sleeved on the shaft. When the driving member drives the transmission member to move along the axial direction of the shaft, when the wheel rotates to any position, the transmission member maintains contact with the driving member, so that the braking action is transmitted downward.

3. The brake transmission system for a baby stroller according to claim 1, characterized in that: The elastic member is a spring.

4. The brake transmission system for a baby stroller according to claim 1, characterized in that: It is also used in pet strollers.

5. A brake device, characterized in that: It uses the brake transmission system for a baby stroller as described in any one of claims 1-4.

6. A braking method, characterized in that: The braking method comprises the following steps: The first step (S1) is to start the driving member to drive the transmission member to move along a preset direction; In the second step (S2), the transmission member drives the actuator to move synchronously; The third step (S3) is to use the elastic member to reset the transmission member.

7. A baby stroller, characterized in that: It uses the brake device as claimed in claim 5.

8. A pet stroller, characterized in that: It uses the brake device as claimed in claim 5.

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