Brake structure

Abstract

The brake structure comprises a wheel body and a rotating pedal, the wheel body is connected with a limiting clamping ring in the rotating axis direction of the wheel body, a plurality of limiting grooves are formed in the side face of the limiting clamping ring, a limiting piece is arranged on the upper side of the limiting clamping ring, and the lower end of the limiting piece is provided with limiting inserting blocks corresponding to the limiting grooves. A connecting column is arranged on the upper portion of the limiting piece, the rotating pedal is connected with a rotating piece, the connecting column is located in a groove in the outer end of the rotating piece, and the rotating piece is used for driving the limiting piece to move up and down in the vertical direction, so that the limiting inserting block at the lower end of the limiting piece faces or is away from the limiting clamping ring; therefore, the wheel body is clamped, and the braking function is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a trundle technical field, concretely relates to a brake structure. BACKGROUND

[0002] With the continuous development of science and technology, equipment is more and more functional and high utilization rate, and trundle components are widely applied to various equipment. The trundle generally has a brake structure, when the brake structure is not forced on the trundle, the trundle can rotate with the applied force to realize movement, and when the brake structure is pressed on the trundle, the trundle cannot rotate, thereby achieving the effect of braking. In the prior art, such as patent announcement No. CN219769978U, a trolley brake structure and a trolley are disclosed, wherein the brake lever is pulled to control the brake or unlocking of the brake-by-wire trundle by stepping on the pedal, and the pedal structure is simple and effective. However, each trundle corresponds to one pedal, and the trolley generally has multiple trundles, so multiple pedals need to be stepped on to control the brake or unlocking of multiple trundles, which is not conducive to further improving the operation speed. SUMMARY

[0003] The utility model aims at overcoming the above-mentioned defects or problems in the background art, and provides a brake structure.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A brake structure comprises a wheel body and a rotating pedal, the wheel body is connected with a limiting ring along the direction of its rotating axis, the side surface of the limiting ring is provided with a plurality of limiting grooves, the upper side of the limiting ring is provided with a limiting piece, the lower end of the limiting piece is provided with a limiting plug corresponding to the limiting groove, and the upper part of the limiting piece is provided with a connecting column.

[0006] In some embodiments of the utility model, the limiting piece comprises a left limiting shell and a right limiting shell connected thereto, the left limiting shell and the right limiting shell are correspondingly provided with accommodating cavities for accommodating the outer end of the rotating piece, and the connecting column is arranged in the accommodating cavity.

[0007] In some embodiments of the utility model, the interval angles between the adjacent limiting grooves on the limiting ring are the same, the wheel body is provided with a columnar connecting part along the direction of its rotating axis, the columnar connecting part and the limiting ring are both penetrated by a connecting through hole, and the connecting through hole is used for mounting a fastener.

[0008] In some embodiments of the utility model, a limiting spring is transversely mounted on the limiting piece, and limiting end portions are arranged at both ends of the limiting spring.

[0009] In some embodiments of the utility model, the limiting member is provided with spring mounting holes for mounting limiting springs.

[0010] In some embodiments of the utility model, the end face edge of the limiting end portion is provided with a chamfered portion.

[0011] In some embodiments of the utility model, the rotating pedal comprises a front pedal shell and a rear pedal shell, and mounting half grooves are arranged between the front pedal shell and the rear pedal shell, and two mounting half grooves are arranged opposite to each other and used for accommodating the rotating member.

[0012] In some embodiments of the utility model, the rotating member, the limiting member and the limiting ring are located in the bracket shell of the front part of the bracket main body, the bracket shell comprises an upper shell and a lower shell, the limiting ring is located in the lower shell, the upper part of the limiting member and the rotating member are located in the upper shell, and an internal cavity for facilitating rotation of the rotating member is formed in the upper shell.

[0013] In some embodiments of the utility model, the lower shell is detachably connected to the lower end of the upper shell.

[0014] In some embodiments of the utility model, the upper shell is located on both sides of the rotating pedal, the rotating pedal is rotatably connected between the two upper shells, the number of the wheel bodies is two and they are arranged on both sides of the front part of the bracket main body, and the outer end of the rotating member is arranged towards the rear.

[0015] From the above description of the utility model, compared with the prior art, the utility model has the following advantages

[0016] Beneficial effects:

[0017] 1. The user can rotate the rotating pedal by pedaling, the rotating pedal is rotated to drive the limiting members on both sides to move towards or away from the corresponding limiting rings through the rotating member, the limiting plug at the lower end of the limiting member is inserted into the limiting groove of the limiting ring, so that the wheel body is clamped, the brake function is realized, one pedal rotation of the rotating pedal can realize the braking or unlocking of the two wheel bodies, the number of braking or unlocking operations required by the stroller is small, and the operation speed is improved.

[0018] 2. The limiting member is provided with a limiting end portion through a limiting spring, the limiting end portion is provided with a chamfered portion, the bracket shell is provided with two limiting recesses correspondingly, so as to realize the limiting effect of the limiting member, and when the rotating pedal is rotated, the limiting end portion with the chamfered portion is convenient to be taken out from the limiting recess, so as to facilitate the up-down movement of the limiting member. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings described in the following are some embodiments of the present application, and should not be regarded as excluding other embodiments for the ordinary skilled in the art without creative effort.

[0020] Figure 1 The structure schematic view of the present application is shown in the figure.

[0021] Figure 2 The structure schematic view of the present application is shown in the figure. Figure 1 The A enlarged view of the present application is shown in the figure.

[0022] Figure 3 The overall schematic view of the present application is shown in the figure.

[0023] Figure 4 The arrangement schematic view of the limiting part of the present application is shown in the figure.

[0024] Figure 5 The B enlarged view of the present application is shown in the figure. Figure 4 The arrangement schematic view of the limiting end of the present application is shown in the figure.

[0025] Figure 6 The arrangement schematic view of the limiting end of the present application is shown in the figure.

[0026] Main figure mark explanation:

[0027] 1, support main body, 10, upper shell, 11, lower shell, 12, internal cavity, 13, end cover, 14, limiting recess, 15, rear wheel, 2, wheel body, 20, columnar connecting part, 3, rotating pedal, 4, limiting ring, 40, limiting groove, 5, limiting part, 50, limiting plug, 51, connecting column, 52, left limiting shell, 53, right limiting shell, 54, containing cavity, 55, limiting spring, 56, limiting end, 57, chamfer part, 6, rotating part, 60, groove. Specific implementation

[0028] The technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are preferred embodiments of the present application, and should not be regarded as excluding other embodiments. Based on the embodiments of the present application, all other embodiments obtained by the ordinary skilled in the art without creative effort belong to the scope of protection of the present application.

[0029] In the claim, description and above drawings of the present application, unless otherwise explicitly limited, the terms such as "first", "second" or "third" are used to distinguish different objects, and are not used to describe a specific order.

[0030] In the claims, the specification, and the drawings of the instant utility model, unless otherwise expressly specified, all of the words in which the terms such as “central”, “transverse”, “longitudinal”, “horizontal”, “vertical”, “top”, “bottom”, “inner”, “outer”, “upper”, “lower”, “front”, “back”, “left”, “right”, “clockwise”, “counterclockwise” and the like are used to indicate the orientation or positional relationship based on the orientation and position relationship shown in the drawings, and are only for the convenience of describing the instant utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation or be constructed and operated in a particular orientation, so it cannot be understood as limiting the specific protection scope of the instant utility model.

[0031] In the claims, the specification, and the drawings of the instant utility model, unless otherwise expressly specified, the term “fixedly connected” or “fixedly connected” should be understood broadly, that is, any connection mode without displacement relationship and relative rotation relationship between the two, that is, it includes non-detachable fixed connection, detachable fixed connection, integration and fixed connection through other devices or elements.

[0032] In the claims, the specification, and the drawings of the instant utility model, unless otherwise expressly specified, the terms “including”, “having” and their variants are intended to mean “including but not limited to”.

[0033] Embodiment, see Figures 1-6 :

[0034] A brake structure, including support body 1, rotating pedal 3, two wheel bodies 2, the number of wheel bodies 2 is two and is arranged at two sides of the front of support body 1 respectively;

[0035] The wheel body 2 is connected with a limiting ring 4 along the direction of its rotation axis, the side surface of the limiting ring 4 is provided with a plurality of limiting grooves 40, the upper side of the limiting ring 4 is provided with a limiting piece 5, the lower end of the limiting piece 5 is provided with a limiting plug 50 corresponding to the limiting grooves 40, the upper part of the limiting piece 5 is provided with a connecting column 51, the rotating pedal 3 is connected with a rotating piece 6, the connecting column 51 is located in the groove 60 at the outer end of the rotating piece 6, the rotating piece 6 is used to drive the limiting piece 5 to move vertically up and down, so that the limiting plug 50 at the lower end of the limiting piece 5 is towards or away from the limiting ring 4. It can be understood that the rotation of the rotating pedal 3 drives the limiting pieces 5 on both sides to be towards or away from the corresponding limiting ring 4 through the rotating piece 6, when the limiting plug 50 at the lower end of the limiting piece 5 is inserted into any limiting groove 40 of the limiting ring 4, thereby clamping the two wheel bodies 2, avoiding the wheel body 2 to continue to rotate, realizing the brake function, when the rotating pedal 3 resets, the limiting piece 5 moves up and away from the limiting ring 4, the limiting plug 50 moves out of the limiting groove 40, releasing the rotation limiting of the wheel body 2, so that one foot pedal of the rotating pedal 3 can realize the brake or unlocking of the two wheel bodies 2, which is beneficial to improve the operation convenience of use.

[0036] As an embodiment, the limiting piece 5 comprises a left limiting shell 52 and a right limiting shell 53 connected thereto, the left limiting shell 52 and the right limiting shell 53 are correspondingly provided with accommodating cavities 54 for accommodating the outer end of the rotating piece 6, and the connecting column 51 is arranged in the accommodating cavity 54;

[0037] As an embodiment, the rotating pedal 3 comprises a front pedal shell and a rear pedal shell connected thereto, the front pedal shell and the rear pedal shell are correspondingly arranged with mounting half grooves, and the two mounting half grooves are oppositely arranged and used to accommodate the rotating piece 6; preferably, the outer end of the rotating piece 6 is arranged towards the back, when the rotating pedal 3 rotates towards the back, the connecting column 51 accommodated in the groove 60 drives the limiting piece 5 to press down with the rotation of the rotating piece 6, so that the limiting plug 50 at the lower end of the limiting piece 5 is towards and inserted into the limiting groove 40 of the limiting ring 4, thereby clamping the wheel body 2 to avoid its rotation, when the rotating pedal 3 rotates towards the front, the connecting column 51 accommodated in the groove 60 drives the limiting piece 5 to move up with the rotation of the rotating piece 6, so that the limiting plug 50 at the lower end of the limiting piece 5 is away from and separated from the limiting groove 40 of the limiting ring 4.

[0038] As an embodiment, the interval angle between the adjacent limiting grooves 40 on the limiting ring 4 is the same, the wheel body 2 is provided with a columnar connecting part 20 along the direction of its rotation axis, the columnar connecting part 20 and the limiting ring 4 are both penetrated by a connecting through hole, the connecting through hole is used to mount a fastener, and the limiting ring 4 and the wheel body 2 are connected through the fastener. Preferably, the number of the limiting grooves 40 is 3-4. Preferably, the fastener is a cylindrical threaded fastener and a nut matched therewith.

[0039] The rotating member 6, the limiting member 5 and the limiting ring 4 are located in the bracket shell at the front of the bracket body 1, and the wheel body 2 is two in number and is arranged on both sides of the front of the bracket body 1.

[0040] As an implementation form, the bracket shell comprises an upper shell 10, and the lower end of the upper shell 10 is connected with a lower shell 11; the upper part of the limiting member 5 and the rotating member 6 are located in the upper shell 10, and the limiting ring 4 is located in the lower shell 11.

[0041] The upper shell 10 is located on both sides of the rotating pedal 3, the rotating pedal 3 is rotatably connected between the two upper shells 10, and an internal cavity 12 is formed in the upper shell 10 to facilitate the rotation of the rotating member 6.

[0042] As an implementation form, the lower shell 11 is detachably connected to the lower end of the upper shell 10. Preferably, the cross section of the limiting plug 50 is circular or rectangular.

[0043] As an implementation form, the end cover 13 is buckled to the bottom of the lower shell 11.

[0044] As an implementation form, the limiting member 5 is transversely provided with a limiting spring 55, both ends of the limiting spring 55 are provided with limiting end portions 56, the bracket shell is provided with limiting recesses 14 corresponding to the limiting end portions 56, the limiting recesses 14 are two in number and are arranged in the vertical direction, and the end face edge of the limiting end portion 56 is provided with a chamfer portion 57; when the rotating pedal 3 rotates, the limiting end portion 56 with the chamfer portion 57 is facilitated to be separated from the limiting recess 14, and the limiting member 5 is facilitated to move; it can be understood that when the rotating pedal 3 is reset, the limiting end portion 56 is embedded in the upper limiting recess 14, and when the limiting plug 50 is inserted into the limiting groove 40 to realize the brake function, the limiting end portion 56 is embedded in the lower limiting recess 14. Preferably, the limiting recess 14 is located in the lower shell 11, and the limiting recess 14 penetrates the lower shell 11.

[0045] As an implementation form, the limiting member 5 is transversely provided with a spring mounting hole to facilitate the installation of the limiting spring 55.

[0046] As an implementation form, the bracket body 1 is provided with two wheel bodies 2 at the front, and two rear wheels 15 are correspondingly arranged at the rear of the bracket body 1. Preferably, the bracket body 1 is the bottom bracket of a baby stroller, and the brake or unlocking of the two wheel bodies 2 is realized by the way of foot stepping, which is beneficial to improve the operation convenience of use and facilitate the quick completion of the brake or unlocking of the baby stroller.

[0047] The description of the above specification and the embodiments are used to explain the protection scope of the present application, but do not constitute the limitation of the protection scope of the present application. Through the inspiration of the present application or the above embodiments, the ordinary skilled in the art combines the common knowledge, the ordinary technical knowledge in the art and / or the prior art, and obtains the modification, equivalent replacement or other improvement of the present application embodiment or one part of the technical features through logical analysis, reasoning or limited test, which should be included in the protection scope of the present application.

Claims

1. A brake structure characterized by: The utility model provides a kind of wheel body (2) including wheel, rotating pedal (3), the wheel body (2) is connected to limit ring (4) along its rotation axis direction, the side of limit ring (4) is provided with several limit slot (40), limit ring (4) upper side is provided with limiting piece (5), limiting piece (5) lower end is provided with limiting plug (50) corresponding limit slot (40), connecting column (51) is provided on the upper part of limiting piece (5), rotating pedal (3) is connected with rotating piece (6), connecting column (51) is located in the groove (60) of the outer end of rotating piece (6), and rotating piece (6) is used to drive limiting piece (5) to move along vertical up and down.

2. A brake structure according to claim 1, wherein: The limiting piece (5) includes left limiting shell (52) and its connected right limiting shell (53), and the left limiting shell (52) and the right limiting shell (53) are correspondingly provided with accommodating cavities (54) for accommodating the outer end of the rotating piece (6).

3. The brake structure of claim 1, wherein: The limit ring (4) is provided with connecting through holes penetrating the limit ring (4) and the columnar connecting part (20), and the connecting through holes are used for mounting fasteners.

4. The brake structure of claim 1, wherein: The limiting piece (5) is provided with a limiting spring (55) mounted transversely thereon, and the limiting spring (55) is provided with limiting end portions (56) arranged at both ends thereof.

5. A brake structure according to claim 4, wherein: The limiting piece (5) is provided with spring mounting holes for mounting the limiting spring (55) transversely.

6. A brake structure according to claim 4, wherein: The end surface edge of the limiting end portion (56) is provided with a chamfer portion (57).

7. The brake structure of claim 1, wherein: The rotating pedal (3) includes a front pedal shell and a rear pedal shell, and the front pedal shell and the rear pedal shell are correspondingly provided with mounting half grooves arranged opposite to each other and used for accommodating the rotating piece (6).

8. A brake structure according to any one of claims 1 to 7, wherein: The rotating piece (6), the limiting piece (5), and the limit ring (4) are located in a bracket shell at the front of the bracket main body (1), the bracket shell includes an upper shell (10), and the lower end of the upper shell (10) is connected to a lower shell (11), the limit ring (4) is located in the lower shell (11), the upper part of the limiting piece (5) and the rotating piece (6) are located in the upper shell (10), and the upper shell (10) is formed with an internal cavity (12) for facilitating rotation of the rotating piece.

9. A brake structure according to claim 8, wherein: The lower shell (11) is detachably connected to the lower end of the upper shell (10).

10. A brake structure according to claim 9, wherein: The upper shell (10) is located on both sides of the rotating pedal (3), the rotating pedal (3) is rotatably connected between the two upper shells (10), and the number of the wheel bodies (2) is two and arranged on both sides of the front of the bracket main body.

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