A brake structure

Abstract

The utility model relates to a trolley brake technology field especially, relate to a brake structure. First elastic member is configured as always having the tendency of driving brake handle to move to the unlocking position, and the first limiting block and second limiting block are convex in the gyre groove, and the gyre part is concave with first recess and second recess, and first recess and second recess are arranged oppositely, and the brake handle of this brake structure is rotated from the unlocking position to the brake position under the action of external force, and the first limiting block is inserted into first recess or second recess, and the brake handle is rebounded to the locking position under the action of first elastic member, and at this time, the second limiting block is inserted into second recess or first recess, and the brake handle is rotated from the locking position to the brake position under the action of external force, and at this time, the first limiting block and second limiting block do not act on the gyre part, and the brake handle is rebounded to the unlocking position under the action of first elastic member, and realize that only the external force of one direction can complete the brake-locking-unlocking process, and it is convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of trolley braking technology, and in particular to a braking structure. Background Technology

[0002] Currently, equipping strollers with braking devices allows them to stop and park. Existing braking devices typically involve pressing a foot pedal to engage a locking mechanism in the wheel's groove, thus braking. To release the brake, the user hooks their foot upwards, disengaging the locking mechanism. However, the force required to hook the foot upwards is difficult to control, easily causing the stroller to become unbalanced, and it is also inconvenient for users wearing slippers.

[0003] Therefore, there is an urgent need for a braking structure to solve the above-mentioned technical problems. Utility Model Content

[0004] The purpose of this invention is to propose a braking structure that can prevent the cart from becoming unbalanced and improve its convenience.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A braking structure includes: a socket, a brake lever, a rotary column, a rotary member, and a first elastic member. The brake lever is rotatably disposed in the socket such that it has an unlocked position, a locked position, and a brake position. The unlocked position and the brake position are respectively located on both sides of the locked position. The first elastic member is configured to always have a tendency to drive the brake lever toward the unlocked position. The rotary member is fixed to the socket and has a rotary groove. The rotary column includes a rotating part and a rotary part connected to each other. The rotating part is rotatably disposed in the socket, and the rotary part is inserted into the rotary groove and can move along the rotary groove. A first limiting block and a second limiting block protrude from the rotary groove. The rotating part is recessed with a first groove and a second groove, which are arranged opposite to each other. When the brake lever moves from the unlock position to the brake position, the first limiting block is inserted into the first groove or the second groove. When the brake lever rebounds under the action of the first elastic member and moves from the brake position to the locking position, the first limiting block separates from the first groove or the second groove, and the second limiting block is correspondingly inserted into the second groove or the first groove. When the brake lever moves from the locking position to the brake position, the second groove or the first groove separates from the second limiting block, and the first elastic member drives the brake lever to move to the unlock position.

[0007] As a preferred embodiment of the above-mentioned braking structure, the cross-sectional shape of the swivel part is I-shaped, and the cross-sectional shape of the rotating part is circular.

[0008] As a preferred embodiment of the aforementioned braking structure, the braking structure further includes a connecting pipe, a slider, a push rod, and a wheel assembly. The connecting pipe is fixed to the socket, the slider is slidably disposed on the connecting pipe, the brake lever is provided with a driving inclined surface, one end of the slider abuts against the driving inclined surface, and the slider can move along the driving inclined surface. The other end of the slider is connected to one end of the push rod, the wheel assembly is rotatably connected to the socket, the wheel assembly is provided with a plurality of brake teeth spaced apart, and the other end of the push rod can be inserted into the gap between any two adjacent brake teeth.

[0009] As a preferred embodiment of the above-mentioned braking structure, the braking structure further includes a second elastic element, which is configured to always have a tendency to drive the push rod to move away from the brake tooth.

[0010] As a preferred embodiment of the above-mentioned braking structure, the braking structure further includes a pressure block, which is provided with a working inclined surface. The connecting pipe is horizontally arranged, and the push rod is vertically arranged. The pressure block is fixed to the other end of the slider, and one end of the push rod abuts against the working inclined surface, and one end of the push rod can move along the working inclined surface.

[0011] As a preferred embodiment of the aforementioned braking structure, the braking structure further includes a front fork, a fork seat assembly, a connecting pin, a pin seat, and a brake pin. The fork seat assembly is inserted into the socket, the front fork is rotatably connected to the fork seat assembly, the wheel assembly is rotatably connected to the front fork, the pin seat is slidably disposed on the front fork, the connecting pin is connected between the push rod and the pin seat, and the brake pin is disposed on the pin seat. The brake pin can be inserted into the gap between any two adjacent brake teeth.

[0012] As a preferred embodiment of the above-mentioned braking structure, the braking structure further includes a third elastic element, which is configured to always have a tendency to drive the brake pin to move away from the brake tooth.

[0013] As a preferred embodiment of the above-mentioned braking structure, the braking structure further includes a fourth elastic element, which is configured to always have a tendency to drive the pin seat to move away from the brake tooth.

[0014] As a preferred embodiment of the aforementioned braking structure, the braking structure further includes a disassembly button, a locking plate, and a fifth elastic element. The locking plate is slidably disposed within the socket and can be fixedly inserted into the fork assembly within the socket. The disassembly button and the fifth elastic element are located at opposite ends of the locking plate. The disassembly button is slidably disposed within the socket, with a portion of the disassembly button exposed outside the socket. The fifth elastic element is disposed within the socket and is a compression spring.

[0015] As a preferred embodiment of the aforementioned braking structure, the first elastic element is a torsion spring.

[0016] The beneficial effects of this utility model are:

[0017] This utility model provides a brake structure. The brake structure includes: a socket, a brake lever, a rotary column, a rotary member, and a first elastic member. The brake lever is rotatably mounted in the socket, so that the brake lever has an unlocked position, a locked position, and a brake position. The unlocked position and the brake position are located on both sides of the locked position, respectively. The first elastic member is configured to always have a tendency to drive the brake lever to move towards the unlocked position. The rotary member is fixed to the socket and is provided with a rotary groove. The rotary column includes a rotating part and a rotary part connected to each other. The rotating part is rotatably mounted in the socket, and the rotary part is inserted into the rotary groove and can move along the rotary groove. A first limiting block and a... The second limiting block has a first groove and a second groove recessed in its rotating part. The first groove and the second groove are arranged opposite to each other. When the brake lever moves from the unlocked position to the brake position, the first limiting block is inserted into the first groove or the second groove. When the brake lever rebounds under the action of the first elastic member and moves from the brake position to the locked position, the first limiting block separates from the first groove or the second groove, and the second limiting block is inserted into the second groove or the first groove accordingly. When the brake lever moves from the locked position to the brake position, the second groove or the first groove separates from the second limiting block, and the first elastic member drives the brake lever to move to the unlocked position. Compared to existing technologies, this brake structure allows the brake lever to rotate from the unlocked position to the brake position under external force. The first limiting block inserts into the first or second groove. When the external force is removed, the brake lever springs back to the locked position under the action of the first elastic element. At this time, the second limiting block inserts into the second or first groove. The brake lever continues to rotate from the locked position to the brake position under external force. At this time, neither the first nor the second limiting block acts on the rotating part. When the external force is removed, the brake lever springs back to the unlocked position under the action of the first elastic element. This allows the braking-locking-unlocking process to be completed with external force in only one direction, preventing the cart from becoming unbalanced and improving convenience. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0019] Figure 1 This is a first structural schematic diagram of the brake structure provided in this embodiment of the utility model;

[0020] Figure 2 This is a second structural schematic diagram of the brake structure provided in this embodiment of the present utility model;

[0021] Figure 3 This is a cross-sectional view of the brake structure provided in this embodiment of the utility model;

[0022] Figure 4 This is a third structural schematic diagram of the brake structure provided in this embodiment of the utility model;

[0023] Figure 5 This is a schematic diagram of the first structure of the brake lever provided in this embodiment of the utility model;

[0024] Figure 6 This is a schematic diagram of the second structure of the brake lever provided in an embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of the third structure of the brake lever provided in this embodiment of the utility model;

[0026] Figure 8 This is a first exploded view of the brake structure provided in this embodiment of the present invention;

[0027] Figure 9 This is an exploded view of the second structure of the brake structure provided in this embodiment of the present invention;

[0028] Figure 10 This is a third exploded view of the brake structure provided in this embodiment of the present invention;

[0029] Figure 11 This is a side view of the brake structure provided in an embodiment of the present invention;

[0030] Figure 12 This is a schematic diagram of the braking-locking-unlocking process of the brake structure provided in this embodiment of the utility model.

[0031] In the picture:

[0032] 1. Socket; 2. Brake lever; 2a. Drive ramp; 2b. Mounting hole; 2c. Low working position; 2d. High working position; 3. Rotating column; 31. First groove; 32. Second groove; 4. Rotating component; 41. Rotating groove; 42. First limiting block; 43. Second limiting block; 5. First elastic component; 6. Connecting pipe; 7. Slider; 8. Push rod; 9. Wheel assembly; 91. Brake tooth; 10. Second elastic component; 11. 11. Pressure block; 12. Front fork; 13. Fork mount assembly; 14. Connecting pin; 15. Pin seat; 16. Brake pin; 17. Third elastic element; 18. Fourth elastic element; 19. Release button; 20. Locking plate; 21. Fifth elastic element; 22. Top cover; 23. Bottom cover; 24. First rivet; 25. Second rivet; 26. First screw; 27. Second screw; 28. Connecting pin; 29. ​​Protective cover; 30. Drive pin. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0034] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0037] like Figures 1 to 12 As shown, this utility model provides a brake structure. The brake structure includes: a socket 1, a brake lever 2, a rotary column 3, a rotary member 4, and a first elastic member 5.

[0038] Specifically, the brake lever 2 is rotatably mounted on the socket 1 so that the brake lever 2 has an unlock position, a locking position, and a braking position. The unlock position and the braking position are located on both sides of the locking position. The first elastic member 5 is configured to always have a tendency to drive the brake lever 2 to move towards the unlock position. The rotating member 4 is fixed to the socket 1 and is provided with a rotating groove 41. The rotating column 3 includes a rotating part and a rotating part connected to each other. The rotating part is rotatably mounted on the socket 1, and the rotating part is inserted into the rotating groove 41 and can move along the rotating groove 41. A first limiting block 42 and a second limiting block 43 protrude from the rotating groove 41, and a first groove 31 and a second limiting block 43 are recessed in the rotating part. Two grooves 32, the first groove 31 and the second groove 32 are arranged opposite to each other. When the brake lever 2 moves from the unlock position to the brake position, the first limiting block 42 is inserted into the first groove 31 or the second groove 32. When the brake lever 2 rebounds under the action of the first elastic member 5 and moves from the brake position to the locked position, the first limiting block 42 separates from the first groove 31 or the second groove 32, and the second limiting block 43 is inserted into the second groove 32 or the first groove 31. When the brake lever 2 moves from the locked position to the brake position, the second groove 32 or the first groove 31 separates from the second limiting block 43, and the first elastic member 5 drives the brake lever 2 to move to the unlock position. Compared to existing technologies, this braking structure allows the brake lever 2 to rotate from the unlocked position to the brake position under external force. The first limiting block 42 inserts into the first groove 31 or the second groove 32. Upon removal of the external force, the brake lever 2 rebounds to the locked position under the action of the first elastic element 5. At this point, the second limiting block 43 correspondingly inserts into the second groove 32 or the first groove 31. The brake lever 2 then continues to rotate from the locked position to the brake position under external force. At this time, neither the first limiting block 42 nor the second limiting block 43 acts on the rotating part. Upon removal of the external force, the brake lever 2 rebounds to the unlocked position under the action of the first elastic element 5. This allows the braking-locking-unlocking process to be completed with external force in only one direction, preventing cart imbalance and improving convenience. Furthermore, the first elastic element 5 is a torsion spring.

[0039] Optionally, the brake structure also includes an upper cover 22 and a lower cover 23. The upper cover 22 is fixedly installed on the top of the socket 1, and the lower cover 23 is fixedly installed on the bottom of the socket 1 to provide protection.

[0040] Optionally, the cross-sectional shape of the swirling part is I-shaped, and the cross-sectional shape of the rotating part is circular.

[0041] Optionally, the brake structure also includes a connecting pipe 6, a slider 7, a push rod 8, and a wheel assembly 9. The connecting pipe 6 is fixed to the socket 1, the slider 7 is slidably disposed on the connecting pipe 6, the brake lever 2 is provided with a driving inclined surface 2a, one end of the slider 7 abuts against the driving inclined surface 2a, and the slider 7 can move along the driving inclined surface 2a, the other end of the slider 7 is connected to one end of the push rod 8, the wheel assembly 9 is rotatably connected to the socket 1, the wheel assembly 9 is provided with a plurality of brake teeth 91 spaced apart, and the other end of the push rod 8 can be inserted into the gap between any two adjacent brake teeth 91. Specifically, the connecting pipe 6 is fixedly installed on the socket 1 with a first rivet 24, the rotary member 4 is installed on the connecting pipe 6 by a second rivet 25, the first screw 26 passes through the connecting pipe 6 and the brake lever 2 and is installed on the upper cover 22, and the brake lever 2 is rotatably disposed on the connecting pipe 6.

[0042] Optionally, the brake structure further includes a second elastic element 10, which is configured to always tend to move the drive rod 8 away from the brake tooth 91. Specifically, the second elastic element 10 is disposed between the slider 7 and the first rivet 24. Further, the second elastic element 10 is a compression spring.

[0043] Optionally, the brake structure also includes a pressure block 11, which has a working inclined surface. The connecting pipe 6 is horizontally positioned, and the push rod 8 is vertically positioned. The pressure block 11 is fixed to the other end of the slider 7, and one end of the push rod 8 abuts against the working inclined surface and can move along the working inclined surface. Specifically, the pressure block 11 is fixed to the slider 7 by a second screw 27. The slider 7 drives the pressure block 11 to move, so that the working inclined surface presses against the push rod 8, and the push rod 8 moves along the working inclined surface and then moves downward.

[0044] Optionally, the brake structure also includes a drive pin 30, which is fixedly mounted on the slider 7 and can slide along the drive ramp 2a. Specifically, in this embodiment, the trolley has a two-wheel structure, and both ends of the brake handle 2 control the brake system. Both ends of the brake handle 2 are provided with a drive ramp 2a and a mounting hole 2b. The rotary column 3 is rotatably mounted in the mounting hole 2b. The drive ramp 2a includes a working low position 2c and a working high position 2d. The drive pin 30 moves between the working low position 2c and the working high position 2d to realize the translation of the drive pin 30.

[0045] Optionally, the brake structure also includes a front fork 12, a fork assembly 13, a connecting pin 14, a pin seat 15, and a brake pin 16. The fork assembly 13 is inserted into the socket 1, the front fork 12 is rotatably connected to the fork assembly 13, the wheel assembly 9 is rotatably connected to the front fork 12, the pin seat 15 is slidably disposed on the front fork 12, the connecting pin 14 is connected between the push rod 8 and the pin seat 15, and the brake pin 16 is disposed on the pin seat 15. The brake pin 16 can be inserted into the gap between any two adjacent brake teeth 91. Specifically, the fork assembly 13 and the front fork 12 are rotatably connected by the connecting pin 14, the push rod 8 is slidably disposed within the fork assembly 13, and the connecting pin 14 is fixedly disposed on the push rod 8. Further, the brake structure also includes a protective cover 29, which is fixedly disposed on the front fork 12 for protection.

[0046] Optionally, the brake structure also includes a third elastic element 17, which is configured to always tend to drive the brake pin 16 away from the brake teeth 91. Specifically, the third elastic element 17 is disposed between the pin seat 15 and the brake pin 16. The third elastic element 17 is a compression spring with a buffering effect, which allows the brake pin 16 to smoothly insert into the gap between any two adjacent brake teeth 91.

[0047] Optionally, the brake structure also includes a fourth elastic element 18, which is configured to always tend to move the drive pin 15 away from the brake tooth 91. Specifically, the fourth elastic element 18 is disposed between the fork 12 and the pin 15, and is a compression spring used to drive the pin 15 to unlock.

[0048] Optionally, the brake structure also includes a release button 19, a locking plate 20, and a fifth elastic element 21. The locking plate 20 is slidably disposed within the socket 1 and can fix the fork assembly 13 inserted into the socket 1. The release button 19 and the fifth elastic element 21 are located at opposite ends of the locking plate 20. The release button 19 is slidably disposed within the socket 1, with a portion of the release button 19 exposed outside the socket 1. The fifth elastic element 21 is disposed within the socket 1 and is a compression spring. Specifically, the release button 19 is fixed to the locking plate 20, and the fifth elastic element 21 is disposed between the inner wall of the socket 1 and the locking plate 20. The wheel assembly 9 is locked within the socket 1 by the locking plate 20, facilitating the replacement of the wheel assembly 9; furthermore, the wheel assembly 9 can rotate within the socket 1 to achieve steering.

[0049] Furthermore, the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A braking structure, characterized in that, include: The device comprises a socket (1), a brake lever (2), a rotary column (3), a rotary member (4), and a first elastic member (5). The brake lever (2) is rotatably disposed in the socket (1) so that the brake lever (2) has an unlock position, a locking position, and a braking position. The unlock position and the braking position are located on both sides of the locking position. The first elastic member (5) is configured to always have a tendency to drive the brake lever (2) to move toward the unlock position. The rotary member (4) is fixed to the socket (1) and is provided with a rotary groove (41). The rotary column (3) includes a rotating part and a rotary part connected to each other. The rotating part is rotatably disposed in the socket (1). The rotary part is inserted into the rotary groove (41) and can move along the rotary groove (41). A first limiting block (42) and a second limiting block (43) are protruding in the rotary groove (41). The rotary part is recessed with a first groove (42). 31) and the second groove (32), the first groove (31) and the second groove (32) are arranged opposite to each other. When the brake lever (2) moves from the unlock position to the brake position, the first limiting block (42) is inserted into the first groove (31) or the second groove (32). When the brake lever (2) rebounds under the action of the first elastic member (5) and moves from the brake position to the locking position, the first limiting block (42) separates from the first groove (31) or the second groove (32), and the second limiting block (43) is inserted into the second groove (32) or the first groove (31). When the brake lever (2) moves from the locking position to the brake position, the second groove (32) or the first groove (31) separates from the second limiting block (43), and the first elastic member (5) drives the brake lever (2) to move to the unlock position.

2. The brake structure according to claim 1, characterized in that, The cross-sectional shape of the swirling part is I-shaped, and the cross-sectional shape of the rotating part is circular.

3. A braking structure according to claim 2, characterized in that, The brake structure also includes a connecting pipe (6), a slider (7), a push rod (8), and a wheel assembly (9). The connecting pipe (6) is fixed to the socket (1). The slider (7) is slidably disposed on the connecting pipe (6). The brake lever (2) is provided with a driving inclined surface (2a). One end of the slider (7) abuts against the driving inclined surface (2a) and the slider (7) can move along the driving inclined surface (2a). The other end of the slider (7) is connected to one end of the push rod (8). The wheel assembly (9) is rotatably connected to the socket (1). The wheel assembly (9) is provided with a plurality of brake teeth (91) spaced apart. The other end of the push rod (8) can be inserted into the gap between any two adjacent brake teeth (91).

4. A brake structure according to claim 3, characterized in that, The brake structure further includes a second elastic element (10) configured to always have a tendency to drive the push rod (8) to move away from the brake tooth (91).

5. A braking structure according to claim 3, characterized in that, The brake structure also includes a pressure block (11), which has a working inclined surface. The connecting pipe (6) is horizontally arranged, and the push rod (8) is vertically arranged. The pressure block (11) is fixed to the other end of the slider (7). One end of the push rod (8) abuts against the working inclined surface, and one end of the push rod (8) can move along the working inclined surface.

6. A braking structure according to claim 3, characterized in that, The braking structure also includes a front fork (12), a fork assembly (13), a connecting pin (14), a pin seat (15), and a brake pin (16). The fork assembly (13) is inserted into the socket (1). The front fork (12) is rotatably connected to the fork assembly (13). The wheel assembly (9) is rotatably connected to the front fork (12). The pin seat (15) is slidably disposed on the front fork (12). The connecting pin (14) is connected between the push rod (8) and the pin seat (15). The brake pin (16) is disposed on the pin seat (15). The brake pin (16) can be inserted into the gap between any two adjacent brake teeth (91).

7. A brake structure according to claim 6, characterized in that, The brake structure further includes a third elastic element (17) configured to always have a tendency to drive the brake pin (16) to move away from the brake tooth (91).

8. A braking structure according to claim 6, characterized in that, The brake structure further includes a fourth elastic element (18) configured to always have a tendency to drive the pin seat (15) to move away from the brake tooth (91).

9. A braking structure according to claim 6, characterized in that, The brake structure also includes a disassembly button (19), a locking plate (20), and a fifth elastic element (21). The locking plate (20) is slidably disposed in the socket (1), and the locking plate (20) can be fixedly inserted into the fork assembly (13) in the socket (1). The disassembly button (19) and the fifth elastic element (21) are respectively located at both ends of the locking plate (20). The disassembly button (19) is slidably disposed in the socket (1), and part of the disassembly button (19) is exposed outside the socket (1). The fifth elastic element (21) is disposed in the socket (1) and is a compression spring.

10. A braking structure according to any one of claims 1-9, characterized in that, The first elastic element (5) is a torsion spring.

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