Brake assembly of carrier and carrier

Abstract

The utility model discloses a brake assembly of a carrier and the carrier. The brake assembly comprises a brake disc arranged on the wheel and a magnet capable of getting close to or away from the brake disc in the first direction, and the wheel is rotationally arranged on the wheel connector. A limiting groove extending in the first direction is formed in the wheel connector, or a limiting groove extending in the first direction is formed in the wheel, the magnet is movably arranged in the limiting groove, and an included angle larger than 0 is formed between the first direction and the moving direction of the carrier. The brake assembly has a brake state and a brake releasing state, in the brake state, a first distance is formed between the magnet and the brake disc, in the brake releasing state, a second distance is formed between the magnet and the brake disc, and the first distance is smaller than the second distance. According to the utility model, the limiting groove extending along the first direction is arranged on the wheel joint or the wheel, and the magnet is movably arranged in the limiting groove, so that the moving direction and the moving path of the magnet are limited, the movement of the magnet is controllable, and the replacement process of the magnet is convenient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of traffic tools, concretely relates to a brake assembly of a carrier and the carrier. BACKGROUND

[0002] The carrier is a commonly used traffic tool, in order to guarantee the safety in the process of carrier driving, most carriers are provided with brake mechanism. The brake mechanism of the existing part of carrier generally includes brake lever and brake slot arranged on brake disc, and the brake is realized by controlling brake lever to insert brake slot, but the brake lever is easy to be stuck in brake slot in the unlocking process of this kind of carrier, and the unlocking operation is inconvenient. Another part of carrier realizes brake and unbrake by respectively arranging magnet and metal piece for adsorbing magnet on wheel or wheel seat, however, since magnet and carrier are fixedly connected, if the carrier is used for a long time, it is very inconvenient to operate when magnet needs to be replaced. SUMMARY

[0003] In view of the above technical problems, the utility model provides an improved brake assembly of a carrier and the carrier.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A brake assembly of a carrier, including brake disc arranged on wheel and magnet capable of approaching or moving away from the brake disc along the first direction, the wheel is rotatably arranged on wheel joint;

[0006] The wheel joint is provided with limiting slot extending along the first direction, or the wheel is provided with limiting slot extending along the first direction, the magnet is movably arranged in the limiting slot, and the first direction and the moving direction of the carrier have an included angle greater than 0;

[0007] The brake assembly has brake state and unbrake state, when the brake assembly is in brake state, the magnet and the brake disc have first interval, when the brake assembly is in unbrake state, the magnet and the brake disc have second interval, and the first interval is less than the second interval.

[0008] Preferably, the first interval is 0, when the brake assembly is in brake state, the magnet and the brake disc abut and contact, and when the brake assembly is in unbrake state, the magnet and the brake disc are separated.

[0009] Preferably, the wheel joint is provided with a hollow limiting piece, the limiting slot is the hollow part in the limiting piece, and the side close to the brake disc of the limiting piece is open and communicated with the limiting slot;The first direction is horizontal and perpendicular to the moving direction of the carrier.

[0010] Further, a first protrusion is arranged on a side surface of the magnet close to the brake disc, and a groove is arranged on the brake disc for cooperating with the first protrusion; when the brake assembly is in the braking state, the first protrusion is located in the groove, and when the brake assembly is in the unbraking state, the first protrusion is separated from the groove.

[0011] Further, a spring is arranged between the magnet and the limiting groove, one end of the spring is connected with the magnet, and the other end of the spring is connected with the limiting groove.

[0012] Further, a second protrusion is arranged on the magnet, and a sliding groove is arranged on the limiting member for cooperating with the second protrusion, and the sliding groove is communicated with the limiting groove.

[0013] Further, the second protrusion is arranged on the upper end of the magnet, the sliding groove extends along the first direction, and the sliding groove is located above the limiting groove.

[0014] Further, the width of the sliding groove along the moving direction of the carrier is smaller than the width of the limiting groove along the moving direction of the carrier, the sliding groove has a limiting surface which is perpendicular to the horizontal surface and faces the limiting cover, and a gap is arranged between the second protrusion and the limiting surface.

[0015] Further, the limiting member is arranged on the outer surface of the wheel joint, the limiting groove penetrates through the limiting member, and the wheel joint further comprises a limiting cover which is mounted on the limiting member away from the brake disc to cover the limiting groove.

[0016] Preferably, the limiting groove is arranged on the hub of the wheel, and the limiting groove is open at one end close to the brake disc; the first direction is horizontal and perpendicular to the moving direction of the carrier.

[0017] The limiting groove penetrates through the hub, and the brake assembly further comprises a limiting cover which is mounted on the hub away from the brake disc to cover the limiting groove.

[0018] Further, the brake assembly further comprises a driving mechanism.

[0019] The magnet is an electromagnet, and the driving mechanism comprises a power supply for electrically connecting with the magnet; or, the magnet is a permanent magnet, at least part of the brake disc comprises a permanent magnet, and the driving mechanism comprises any one or a combination of the following: a mechanism for changing the polarity of the magnet on the brake disc, a barrier arranged between the magnet and the brake disc, and a traction member for pulling the magnet close to or away from the brake disc.

[0020] A carrier, the carrier comprising the above brake assembly.

[0021] The utility model discloses the above scheme, compared with prior art has the following advantages:

[0022] The utility model discloses a brake assembly and carrier, by setting the limiting slot extending along the first direction on the wheel joint or wheel, the magnet is movably arranged in the limiting slot, therefore the moving direction and moving path of magnet are limited, and the movement of magnet is controllable. Because the magnet is movably arranged in the limiting slot, if the carrier needs to replace the magnet when the service time is longer, the replacement process is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme of the utility model, the following will be to the embodiment description needed to use the drawing briefly introduced, obviously, the following description in the drawing is only some embodiments of the utility model, for the person skilled in the art, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.

[0024] Figure 1 It is the three-dimensional structure schematic diagram of the brake assembly in the utility model embodiment one;

[0025] Figure 2 It is the three-dimensional exploded schematic diagram of the brake assembly in the utility model embodiment one;

[0026] Figure 3 It is Figure 2 The local enlarged schematic diagram of place A in the utility model embodiment;

[0027] Figure 4 It is the side view of the brake assembly in the utility model embodiment one;

[0028] Figure 5 It is Figure 4 The sectional view along A-A direction in the utility model embodiment;

[0029] Figure 6 It is Figure 5 The local enlarged schematic diagram of place B in the utility model embodiment;

[0030] Figure 7 It is another three-dimensional exploded schematic diagram of the brake assembly in the utility model embodiment one;

[0031] Figure 8 It is another side view of the brake assembly in the utility model embodiment;

[0032] Figure 9 It is Figure 8 The sectional view along B-B direction in the utility model embodiment;

[0033] Figure 10 It is Figure 9 The local enlarged schematic diagram of place C in the utility model embodiment;

[0034] Figure 11 It is a three-dimensional exploded schematic view of the brake assembly in the second embodiment of the present application;

[0035] 1, wheel; 2, brake disc; 21, groove; 3, magnet; 31, first protrusion; 32, second protrusion; 4, wheel joint; 5, limiting groove; 6, limiting piece; 7, elastic piece; 8, limiting cover; 9, sliding groove; 91, limiting surface. DETAILED DESCRIPTION

[0036] The present application will be further described below in conjunction with the embodiments. However, the present application is not limited to the following embodiments. The implementation conditions used in the embodiments can be further adjusted according to different requirements of specific use, and the implementation conditions not mentioned are the conventional conditions in the industry. The technical features involved in each embodiment of the present application can be combined with each other as long as there is no conflict between them.

[0037] In the following, only certain example embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the embodiments of the present application. Therefore, the drawings and the description are considered to be essentially exemplary rather than limiting.

[0038] In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0039] In the embodiments of the present application, unless otherwise specifically specified and limited, the "upper" or "lower" of the first feature in relation to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "above", "upper" and "upper surface" of the first feature in relation to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "under" and "under surface" of the first feature in relation to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0040] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0041] Example 1

[0042] In this embodiment, the vehicle can be a stroller, specifically a children's stroller. For example... Figures 1 to 10 As shown, the braking assembly of the vehicle in this embodiment includes a brake disc 2 mounted on a wheel 1 and a magnet 3 that can move closer to or further away from the brake disc 2. The wheel is rotatably mounted on a wheel joint 4. The braking assembly has a braking state and a de-braking state. When the braking assembly is in the braking state, the magnet 3 and the brake disc 2 have a first distance; when the braking assembly is in the de-braking state, the magnet 3 and the brake disc 2 have a second distance, and the first distance is smaller than the second distance. Specifically, in this embodiment, the first distance is 0. When the braking assembly is in the braking state, the magnet 3 and the brake disc 2 are in close contact; when the braking assembly is in the de-braking state, the magnet 3 and the brake disc 2 are disengaged.

[0043] In this embodiment, the magnet 3 can be an electromagnet, and the brake disc 2 contains iron to achieve attraction with the magnet 3. When the magnet 3 is energized, an attractive force is generated between it and the brake disc 2, causing the magnet 3 to move closer to the brake disc 2 and eventually engage. Friction is generated between the magnet 3 and the brake disc 2 to prevent the wheel from rotating or to slow down its rotation speed. Furthermore, the deceleration rate can be controlled by adjusting the current flowing through the magnet 3. When the magnet 3 is de-energized, the attractive force disappears, the magnet 3 moves away from the brake disc 2, and the wheel 1 resumes rotation. The brake assembly also includes a drive mechanism for driving the movement of the magnet 3, specifically including a power supply. In this embodiment, the power supply and the related cables connecting the power supply and the magnet 3 are all located on the wheel connector 4, facilitating circuit layout, preventing cable tangling during wheel 1 rotation, and effectively reducing the weight of the wheel 1.

[0044] Further, the magnet 3 can also be a permanent magnet, and at least part of the brake disc 2 also comprises a permanent magnet. When the brake assembly is in the braking state, the polarity of the permanent magnet on the brake disc 2 is opposite to the polarity of the magnet 3, so as to generate an attractive force; when the brake assembly is in the unbraking state, the polarity of the permanent magnet on the brake disc 2 is the same as the polarity of the magnet 3. The driving mechanism can be any one or a combination of a mechanism for changing the polarity of the magnet on the brake disc 2, a barrier arranged between the magnet 3 and the brake disc 2, and a traction member for pulling the magnet 3 close to or away from the brake disc 2. For example, by arranging the barrier, when braking is needed, the barrier is moved away from the magnet 3 and the brake disc 2 to generate an attractive force therebetween, and when unbraking is needed, the barrier is moved between the magnet 3 and the brake disc 2. The specific structure and position of the driving structure are not limited in the embodiment, as long as the movement of the magnet 3 can be realized.

[0045] As shown in Figure 6 , the wheel joint 4 is provided with a limiting groove 5 extending in a first direction, and the magnet 3 is movably arranged in the limiting groove 5. The first direction has an included angle greater than 0 with the moving direction of the carrier. In the embodiment, the first direction is preferably horizontal and perpendicular to the moving direction of the carrier, so as to increase the attractive force between the magnet 3 and the brake disc 2. Specifically, the wheel joint 4 comprises a hollow limiting member 6, the limiting groove 5 is a hollow part in the limiting member 6, and the side of the limiting member 6 close to the brake disc 2 is open and communicates with the limiting groove 5. The position of the limiting member 6 on the wheel joint 4 is not limited, and in the embodiment, the limiting member 6 is preferably arranged on the outer surface of the wheel joint 4, so that the distance from the center of the wheel shaft is far, the force arm is larger, the torque generated is larger, and the attractive force required is smaller. In other embodiments, the limiting member 6 can also be arranged inside the wheel joint 4, for example, the center of the magnet 3 and the center of the wheel shaft are concentrically arranged, as long as the magnet 3 can slide in the limiting groove 5 and can be close to or away from the brake disc 2 through the opening. The length of the limiting groove 5 in the first direction can be limited according to the actual situation, that is, the distance between the magnet 3 and the brake disc 2 in the unbraking state should not be too close to cause false braking, and the distance between the magnet 3 and the brake disc 2 should not be too far to prevent the magnet 3 from being close to the brake disc 2 when the carrier needs to be converted from the unbraking state to the braking state.

[0046] Further, as shown in Figure 10As shown in the figure, the magnet 3 is provided with a first protrusion 31 on the side surface close to the brake disc 2, and the brake disc 2 is provided with a groove 21 for cooperating with the first protrusion 31. When the brake assembly is in the braking state, the first protrusion 31 is located in the groove 21, and when the brake assembly is in the unbraking state, the first protrusion 31 is separated from the groove 21. By providing the first protrusion 31 on the magnet 3, in addition to the attraction force between the magnet 3 and the brake disc 2 to achieve deceleration or braking, the brake can also be achieved by the clamping cooperation of the first protrusion 31 and the groove 21, so as to prevent the magnet from being magnetized and causing poor braking effect, thereby improving the safety of the carrier. Figure 7 and Figure 10 As shown in the figure, the magnet 3 and the limiting groove 5 are further provided with an elastic member 7, one end of the elastic member 7 is connected with the magnet 3, and the other end of the elastic member 7 is connected with the limiting groove 5. The elastic member 7 can be a return spring, which facilitates the disengagement of the magnet 3 and the brake disc 2.

[0047] In this embodiment, the limiting groove 5 penetrates the limiting member 6, that is, the two ends of the limiting member 6 are open. The wheel joint 4 further comprises a limiting cover 8 installed on the limiting member 6 away from the brake disc 2 to cover the limiting groove 5. In this embodiment, by providing the limiting cover 8, when the magnet 3 is degraded in performance after being used for a long time, the limiting cover 8 can be directly opened or removed to replace the magnet, and the replacement process is convenient. Specifically, the limiting cover 8 can be completely detached from the limiting member 8, or can be movably connected with the limiting member 8 (that is, at least a part of the limiting cover 8 is fixedly connected with the limiting member 8, and the other part can be separated from the limiting member 8). Figure 2 and Figure 6 As shown in the figure, the magnet 3 is further provided with a second protrusion 32, and the limiting member 6 is provided with a sliding groove 9 for cooperating with the second protrusion 32. In this embodiment, considering the gravity of the magnet 3 itself, in order to prevent the friction force generated between the second protrusion 32 and the inner wall of the limiting member 6 from being too large, the second protrusion 32 is preferably arranged at the upper end of the magnet 3. The sliding groove 9 extends in the first direction, the sliding groove 9 is located above the limiting groove 5, and the sliding groove 9 and the limiting groove 5 are communicated. In this embodiment, the shape of the magnet 3 is preferably cylindrical, and correspondingly, the inner wall of the limiting groove 5 is also arranged in an arc shape matching the outer surface of the magnet 3, so as to prevent the magnet 3 from being stuck in the limiting groove 5 during movement. The gap between the outer surface of the magnet 3 and the limiting groove 5 also needs to be greater than 0 and less than 0.3 mm, so as to prevent the generation of friction force in the first direction or the generation of too large friction force during the movement of the magnet 3. By providing the second protrusion 32 on the magnet 3, when the magnet 3 moves in the first direction, the second protrusion 32 also moves in the sliding groove 9, which can prevent the magnet 3 from rotating and thus affecting the braking or unbraking effect.

[0048] The width of the sliding groove 9 in the moving direction of the carrier is less than the width of the limiting groove 5 in the moving direction of the carrier. Figure 3 and Figure 6As shown, the slide groove 9 has a limiting surface 91 perpendicular to the horizontal plane and facing the limiting cover 8. Regardless of the magnet 3's position, there is always a gap between the second protrusion 32 and the limiting surface 91 to prevent the second protrusion 32 from contacting the limiting surface 91 before the magnet 3 contacts the brake disc 2. Furthermore, when the brake assembly is in the released state, the second protrusion 32 and the limiting cover 8 can contact each other, or the magnet 3 itself can contact the limiting cover 8, or both the second protrusion 32 and the magnet 3 can contact the limiting cover 8 simultaneously, to control the distance between the magnet 3 and the brake disc 2 from becoming too far.

[0049] This embodiment also includes a vehicle that incorporates the aforementioned braking assembly, the details of which will not be repeated here. Furthermore, the vehicle's frame or other components may also be equipped with operating devices for controlling braking and de-braking, such as a switch button or foot brake. These operating devices and the drive unit can be connected via a traction device, an electrical cable, or a wireless signal. When the user triggers the operating device, the drive assembly drives the magnet 3 to move, thereby achieving braking and de-braking.

[0050] Example 2

[0051] This second embodiment is basically the same as the first embodiment, except that: Figure 11 As shown, the wheel 1 has a limiting groove 5 on its hub, with an opening at one end near the brake disc 2. Furthermore, the limiting groove 5 can also extend through the wheel hub, and a limiting cover can be provided at the end of the limiting groove 5 away from the brake disc 2. A first protrusion 31 and a second protrusion 32 can also be provided on the magnet 3; details will not be elaborated here. In this embodiment, a sliding groove for engaging with the second protrusion 32 is provided on the wheel hub.

[0052] In summary, the braking assembly and vehicle in this embodiment have at least the following advantages:

[0053] 1. By setting a limiting groove extending in the first direction on the wheel joint or wheel, the magnet can be movably set in the limiting groove, thus limiting the moving direction and moving path of the magnet, making the movement of the magnet controllable.

[0054] 2. Since the magnet is movably installed in the limiting groove, the replacement process is convenient if the magnet needs to be replaced after a long period of use of the vehicle;

[0055] 3. By setting a first protrusion on the magnet and a groove on the brake disc that mates with the first protrusion, secondary braking is achieved to prevent magnetization of the magnet from causing poor braking performance and to improve the safety of the vehicle.

[0056] 4. By setting a second protrusion on the magnet, the magnet can be effectively prevented from rotating, thus affecting the braking or releasing effect.

[0057] As shown in the specification and claims, the terms "comprise" and "include" merely indicate the inclusion of the recited elements, and the method or device can also include other steps or elements. The term "and / or" used herein includes any combination of one or more related items.

[0058] It should be noted that, unless otherwise specified, when a certain feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or indirectly fixed or connected to the other feature. In addition, the up, down, left, right and other descriptions used in the utility model are only relative to the mutual position relationship of the components of the utility model in the drawings.

[0059] The above embodiments are only for illustrating the technical concept and characteristics of the utility model, and are a preferred embodiment, the purpose of which is to enable those skilled in the art to understand the content of the utility model and implement it, and it cannot limit the protection scope of the utility model. Any equivalent transformation or modification made according to the principle of the utility model should be covered within the protection scope of the utility model.

Claims

1. A brake assembly for a vehicle, comprising: The brake assembly comprises a brake disc arranged on a wheel and a magnet capable of moving towards or away from the brake disc in a first direction, the wheel is rotatably arranged on a wheel joint; The wheel joint is provided with a limiting groove extending in the first direction, or the wheel is provided with a limiting groove extending in the first direction, the magnet is movably arranged in the limiting groove, and the first direction has an included angle greater than 0 with the moving direction of the carrier; The brake assembly has a braking state and a non-braking state, when the brake assembly is in the braking state, the magnet and the brake disc have a first distance, when the brake assembly is in the non-braking state, the magnet and the brake disc have a second distance, and the first distance is smaller than the second distance.

2. The brake assembly of claim 1, wherein, The first distance is 0, when the brake assembly is in the braking state, the magnet and the brake disc are in close contact, and when the brake assembly is in the non-braking state, the magnet and the brake disc are separated.

3. The brake assembly of claim 1, wherein, The wheel joint comprises a hollow limiting member, the limiting groove is a hollow part in the limiting member, and the limiting member is open on the side close to the brake disc and communicates with the limiting groove; the first direction is horizontal and perpendicular to the moving direction of the carrier.

4. The brake assembly of claim 3, wherein, A first protrusion is arranged on the side surface of the magnet close to the brake disc, and a groove is arranged on the brake disc for cooperating with the first protrusion; when the brake assembly is in the braking state, the first protrusion is located in the groove, and when the brake assembly is in the non-braking state, the first protrusion is separated from the groove; And / or, a resilient member is further arranged between the magnet and the limiting groove, one end of the resilient member is connected with the magnet, and the other end of the resilient member is connected with the limiting groove; And / or, a second protrusion is further arranged on the magnet, a sliding groove is arranged on the limiting member for cooperating with the second protrusion, and the sliding groove communicates with the limiting groove.

5. The brake assembly of claim 4, wherein, The second protrusion is arranged on the upper end of the magnet, the sliding groove extends in the first direction, and the sliding groove is located above the limiting groove.

6. The brake assembly of claim 4, wherein, The limiting member is arranged on the outer surface of the wheel joint; the limiting groove penetrates through the limiting member, the wheel joint further comprises a limiting cover, the limiting cover is mounted on the end of the limiting member away from the brake disc to cover the limiting groove; the width of the sliding groove in the moving direction of the carrier is smaller than the width of the limiting groove in the moving direction of the carrier, the sliding groove has a limiting surface perpendicular to the horizontal plane and facing the limiting cover, and the second protrusion and the limiting surface have a gap.

7. The brake assembly of claim 3, wherein, The limiting member is arranged on the outer surface of the wheel joint; the limiting groove penetrates through the limiting member, the wheel joint further comprises a limiting cover, the limiting cover is mounted on the end of the limiting member away from the brake disc to cover the limiting groove.

8. The brake assembly of claim 1, wherein, The limiting groove is arranged on the hub of the wheel, and the end of the limiting groove close to the brake disc is open; the first direction is horizontal and perpendicular to the moving direction of the carrier; The limiting groove penetrates through the hub, and the brake assembly further comprises a limiting cover, the limiting cover is mounted on the end of the hub away from the brake disc to cover the limiting groove.

9. The brake assembly of a vehicle as claimed in claim 3 or 8 wherein, The brake assembly further comprises a driving mechanism; The magnet is an electromagnet, the driving mechanism comprises a power source electrically connected with the magnet; or, the magnet is a permanent magnet, at least part of the brake disc comprises a permanent magnet, the driving mechanism comprises any one or a combination of the following: a mechanism for changing the polarity of the magnet on the brake disc, a barrier arranged between the magnet and the brake disc, a traction member for pulling the magnet close to or away from the brake disc.

10. A carrier, characterized by The vehicle comprises the brake assembly of any one of claims 1-9.

Images