Quick locking type bicycle folder

Abstract

The utility model provides a quick locking type bicycle folder, and belongs to the technical field of folders. Comprising a connecting piece and fixing pieces, the two fixing pieces are rotationally connected to the two ends of the connecting piece respectively, the connecting piece comprises a connecting base and connecting blocks located on the two sides of the connecting base, and two limiting insertion holes are formed in the side wall of each connecting block; the limiting part comprises an insertion rod and a guide plate movably connected with the insertion rod, the guide plate is fixedly connected to the fixing part, and the insertion rod is arranged to be in matched socket connection with one of the limiting insertion holes when the folder is folded or unfolded. According to the folding device, the two fixing pieces are arranged to be matched with the connecting piece to be rotationally connected, 180-degree turnover folding of the two ends of the folding device is achieved, the connecting piece and the fixing pieces which are rotationally folded or unfolded are limited and fixed through the limiting pieces, rapid locking of the folding device is achieved, the structure is simple, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of folders, in particular to a quick-locking bicycle folder. Background Art

[0002] As people's living standards are getting higher and higher, people's utilization of living space is very high. In order to save the occupied space of bicycles and facilitate storage, integrated bicycles are gradually replaced by folding bicycles, and folding bicycles mainly use bicycle folders to fold or unfold the bicycles.

[0003] However, in the folding device locking device currently used on foldable bicycles, after the locking handle is turned to open, it is necessary to manually pull the locking buckle out of the folding body, which is very inconvenient to operate. Therefore, the present application provides a quick-locking bicycle folding device to meet the needs. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a quick-locking bicycle folder to solve the problem that in the existing folder locking device used on the folding bicycle, when the locking handle is rotated to open, the locking buckle needs to be manually pulled to separate from the folding body, which is very inconvenient to operate.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A quick-locking bicycle folding device, comprising:

[0007] A connecting member and a fixing member, wherein two fixing members are provided and are rotatably connected to the two ends of the connecting member respectively, and the connecting member comprises a connecting seat and connecting blocks located on both sides of the connecting seat, and a limiting plug hole is provided on the side wall of the connecting block, and two limiting plug holes are provided;

[0008] The limiting member comprises an insert rod and a guide plate movably connected to the insert rod, wherein the guide plate is fixedly connected to the fixing member, and the insert rod is configured to be connected with one of the limiting sockets in a socket-jointed manner when the folder is folded or unfolded.

[0009] Preferably, the connecting block is fan-shaped and perpendicular to the side wall of the connecting seat, a connecting hole is provided at the center of the connecting block, and the two limiting sockets are provided with a certain interval and are at the same horizontal height.

[0010] Preferably, the connecting member further comprises support plates arranged on both sides of the ends of the connecting seat, the support plates are disc-shaped structures, and the connecting seat and the ends of the support plates are provided with reinforcing ribs, and two reinforcing ribs are provided and distributed parallel to each other.

[0011] Preferably, the fixing member includes a connecting rod and a mounting plate fixedly connected to one end of the connecting rod, the connecting rod has a connecting groove horizontally formed at one end away from the mounting plate, and rotating holes are formed on both side walls of the connecting groove, and the rotating holes are fixedly connected to pins.

[0012] Preferably, support seats are provided on both side walls of the connecting groove, the support seats are in an arc-shaped structure, and an arc-shaped groove is opened near the rotating hole, the outer wall of the support seat is slidably connected with the inner wall of the support plate, and the side position of the connecting seat is provided with a groove that cooperates with the rotation connection of the support seat.

[0013] Preferably, a bushing is fixedly connected to the inner wall of the connecting hole, the bushing has a cylindrical structure, and the inner wall of the bushing is rotatably connected with a pin, annular grooves are provided at both ends of the bushing, and balls are rollingly connected inside the annular grooves. A plurality of balls are provided and are closely distributed in an annular array inside the annular groove, and the balls are rollingly connected with the side wall inside the connecting groove close to the rotating hole.

[0014] Preferably, two guide plates are provided and are distributed parallel to each other on the connecting rod near a side of the connecting block where a limited position insertion hole is provided, and a through hole is provided on the guide plate to cooperate with the insertion rod for sliding connection.

[0015] Preferably, a sliding rod is vertically fixedly connected to the middle of the rod body, and limited shifting blocks are fixedly connected to both ends of the connecting groove.

[0016] Preferably, a guide rail is provided on the connecting rod on the same side as the guide plate to cooperate with the sliding rod for sliding connection.

[0017] Preferably, a return spring is sleeved on one side of the insertion rod away from the connecting piece, and two ends of the return spring are respectively in tight contact with the slide rod and one of the two guide plates away from the connecting piece.

[0018] Compared with the prior art, the utility model has at least the following beneficial effects:

[0019] In the above scheme, by providing two fixing parts and cooperating with the connecting parts for rotational connection, the two ends of the folder can be flipped and folded 180 degrees, and the connecting parts and fixing parts for rotational folding or unfolding can be limited and fixed by the limiting parts, so as to realize the quick locking of the folder, and the structure is simple and easy to operate; by providing a support seat, when the folder is in the unfolded state, the supporting plate and the support seat are slidably connected, and at the same time, the reinforcing ribs are cooperated to realize the function of supporting the components at both ends of the folder; by providing a reset spring, the driving rod is automatically driven to slide toward the end close to the connecting block, so that when the limiting block is released, the rod automatically slides toward the connecting block under the guidance of the guide plate, and cooperates with one of the limiting sockets for socket connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 for Figure 1 Exploded view of the middle part structure;

[0023] Figure 3 for Figure 2 A magnified image of the middle A area;

[0024] Figure 4 This is a schematic diagram of the structure of the connector of the utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the fixing member of the utility model;

[0026] Figure 6 This is a schematic diagram of the bushing and pin connection structure of the utility model.

[0027] In the figure: 1. Connecting piece; 11. Connecting seat; 12. Support plate; 13. Reinforcing rib; 14. Connecting block; 15. Connecting hole; 16. Limiting plug hole; 17. Groove; 2. Fixing piece; 21. Connecting rod; 22. Mounting plate; 23. Support seat; 24. Connecting groove; 25. Arc groove; 26. Rotating hole; 3. Limiting piece; 31. Guide rail; 32. Guide plate; 33. Insert rod; 34. Slide rod; 35. Limiting block; 36. Reset spring; 4. Bushing; 41. Ring groove; 42. Ball bearing; 5. Pin.

[0028] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the attached claims. DETAILED DESCRIPTION

[0029] The following is a detailed description of a quick-lock bicycle folding device provided by the utility model in combination with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some known technologies, those skilled in the art may also adopt other alternative methods to implement them; and the accompanying drawings are only for more specific description of the embodiments, and are not intended to specifically limit the utility model.

[0030] like Figure 1 - Figure 6 As shown, an embodiment of the utility model provides a quick-locking bicycle folder, including a connecting member 1 and a fixing member 2, wherein two fixing members 2 are provided and are rotatably connected to the two ends of the connecting member 1 respectively, the connecting member 1 includes a connecting seat 11, and connecting blocks 14 located on both sides of the connecting seat 11, and a limiting socket 16 is provided on the side wall of the connecting block 14, and two limiting sockets 16 are provided; the limiting member 3 includes an insertion rod 33, and a guide plate 32 movably connected to the insertion rod 33, the guide plate 32 is fixedly connected to the fixing member 2, and the insertion rod 33 is configured to be connected with one of the limiting sockets 16 in a socket connection when the folder is folded or unfolded.

[0031] By providing two fixing members 2 for rotational connection with the connecting member 1, the two ends of the folder can be flipped and folded 180 degrees, and the connecting member 1 and the fixing member 2 that are rotated, folded or unfolded can be limited and fixed by the limiting member 3, so that the folder can be quickly locked. The structure is simple and the operation is convenient.

[0032] like Figure 4 As shown, the connecting block 14 is fan-shaped and perpendicular to the side wall of the connecting seat 11. A connecting hole 15 is provided at the center of the connecting block 14. Two limit sockets 16 are provided with a certain interval and are at the same horizontal height. An inclined chamfer is provided at the opening position of the limit socket 16 to facilitate automatic alignment and calibration of the plug rod 33 and the limit socket 16.

[0033] Two limiting sockets 16 are provided, which are respectively used for unfolding and folding locking of the folder, wherein the limiting socket 16 is arranged so that when it is rotated to be close to the connecting rod 21, the overall axial direction is parallel to the side wall of the connecting rod 21.

[0034] like Figure 4 As shown, the connecting member 1 also includes support plates 12 arranged on both sides of the ends of the connecting seat 11. There are four support plates 12 and they are disc-shaped. The connecting seat 11 and the ends of the support plates 12 are provided with reinforcing ribs 13. There are two reinforcing ribs 13 and they are distributed parallel to each other, wherein the reinforcing ribs 13 are fixedly connected to the connecting seat 11 and the support plates 12.

[0035] The reinforcing ribs 13 are provided to support and fix the connecting seat 11 and the support plate 12 , thereby improving the structural strength of the support plate 12 and preventing the support plate 12 from being deformed by force.

[0036] like Figure 5 As shown, the fixing member 2 includes a connecting rod 21 and a mounting plate 22 fixedly connected to one end of the connecting rod 21. A connecting groove 24 is horizontally provided at one end of the connecting rod 21 away from the mounting plate 22. Rotating holes 26 are provided on both side walls of the connecting groove 24, and the rotating holes 26 are fixedly connected to the pins 5.

[0037] The installation plate 22 is provided to facilitate the two fixing members 2 to be fixedly installed on the two components of the bicycle for folding.

[0038] like Figure 5 As shown, support seats 23 are provided on both side walls of the connecting groove 24. The support seats 23 are in an arc-shaped structure, and arc-shaped grooves 25 are provided near the rotating hole 26 to facilitate the assembly of the pin 5. The outer wall of the support seat 23 is slidably connected with the inner wall of the support plate 12. A groove 17 for rotating connection with the support seat 23 is provided on the side of the connecting seat 11. When the folder is folded, the support seat 23 is slidably inserted to prevent the edge of the connecting seat 11 from blocking the rotation of the support seat 23.

[0039] By providing the support seat 23, when the folder is in the unfolded state, the supporting plate 12 is slidably connected to the support seat 23 and the reinforcing ribs 13 are used to support the components at both ends of the folder.

[0040] like Figure 2 and Figure 6 As shown, a bushing 4 is fixedly connected to the inner wall of the connecting hole 15. The bushing 4 is a cylindrical structure, and the inner wall of the bushing 4 is rotatably connected with the pin 5. Annular grooves 41 are provided at both ends of the bushing 4. Balls 42 are rollingly connected inside the annular groove 41. There are a plurality of balls 42, which are closely distributed in an annular array inside the annular groove 41. The balls 42 are rollingly connected with the side wall of the connecting groove 24 near the rotating hole 26.

[0041] The connecting member 1 and the fixing member 2 are rotatably connected by a bushing 4, and rolling balls 42 are provided at both ends of the bushing 4 to reduce the rotational friction and play a certain supporting role.

[0042] like Figure 3 As shown, two guide plates 32 are provided and are parallel to each other and are arranged on the connecting rod 21 near one side of the limiting insertion hole 16 provided on the connecting block 14 . A through hole is provided on the guide plate 32 for sliding connection with the insertion rod 33 .

[0043] By providing two mutually parallel guide plates 32 to slidably connect the insertion rod 33, it is convenient to realize the linear sliding of the insertion rod 33 along the side wall direction of the connecting rod 21.

[0044] like Figure 3 As shown, the middle position of the rod body of the insertion rod 33 is vertically fixedly connected to a slide rod 34, and the two ends of the connecting groove 24 are fixedly connected to limit shift blocks 35; the connecting rod 21 is provided with a guide rail 31 on the same side of the guide plate 32 to cooperate with the slide rod 34 for sliding connection.

[0045] By providing a slide bar 34 fixedly connected to the insertion rod 33 , the linear sliding of the insertion rod 33 is further ensured, and slide bars 34 are provided at both ends of the slide bar 34 , so as to facilitate the manual movement of the limit block 35 to realize the sliding of the insertion rod 33 .

[0046] like Figure 3 As shown, a return spring 36 is sleeved on the side of the insertion rod 33 away from the connecting member 1, and both ends of the return spring 36 are respectively in close contact with the slide rod 34 and one of the two guide plates 32 away from the connecting member 1.

[0047] By providing a return spring 36, the driving rod 33 automatically slides toward one end close to the connecting block 14, so that when the limiting block 35 is released, the rod 33 automatically slides toward the connecting block 14 under the guidance of the guide plate 32, and is connected with one of the limiting sockets 16 by a socket connection.

[0048] The technical solution provided by the utility model is that in actual application, the two ends of the folder are fixedly connected to the two folding components of the bicycle through the mounting plate 22. When unfolding, the bicycle is unfolded in a straight line, and the connecting member 1 and the fixing members 2 at both ends thereof are distributed in a straight line. At this time, the plug rod 33 cooperates with the limiting socket 16 on the connecting block 14 away from the connecting seat 11 to ensure the straight-line unfolding of the folder. At this time, when the bicycle is in use, the two ends are connected and supported by the sliding connection cooperated by the support plate 12 and the support seat 23 to ensure the normal use of the bicycle. When folded, the plug rod 33 cooperates with the limiting socket 16 on the connecting block 14 close to the connecting seat 11 to connect with the socket, and the folder is unfolded in a straight line. The two fixing members 2 are arranged parallel to each other, so that the two ends of the folder can be folded 180 degrees. When folding and unfolding, the connecting rods 21 on both sides are held with both hands, and the limit blocks 35 are moved with the fingers to resist the elastic force of the return spring 36, so as to drive the insertion rod 33 out of the limit socket 16, and rotate the fixing members 2 at both ends of the folder to switch the folder state. At the same time, the fingers are released, so that the insertion rod 33 approaches the connecting block 14 under the elastic force of the return spring 36. At this time, the end of the insertion rod 33 continues to slide with the side wall of the connecting block 14 until it is rotated to a certain angle, and the insertion rod 33 is aligned with the limit socket 16 and automatically inserted to complete the locking of the folder.

[0049] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the above preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0050] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A quick-locking bicycle folding device, characterized in that: include: A connecting member (1) and a fixing member (2), wherein two fixing members (2) are provided and are rotatably connected to two ends of the connecting member (1), respectively; the connecting member (1) comprises a connecting seat (11) and connecting blocks (14) located on both sides of the connecting seat (11); a limiting plug hole (16) is provided on a side wall of the connecting block (14); and two limiting plug holes (16) are provided; The limiting member (3) comprises an insert rod (33) and a guide plate (32) movably connected to the insert rod (33), wherein the guide plate (32) is fixedly connected to the fixing member (2), and the insert rod (33) is configured to be connected in a socket-type manner with one of the limiting insertion holes (16) when the folder is folded or unfolded.

2. The quick-locking bicycle folding device according to claim 1, characterized in that: The connecting block (14) is in a fan-shaped structure and is perpendicular to the side wall of the connecting seat (11). A connecting hole (15) is provided at the center of the connecting block (14). The two limiting insertion holes (16) are arranged at a certain distance and are at the same horizontal height.

3. The quick-locking bicycle folding device according to claim 2, characterized in that: The connecting member (1) further comprises support plates (12) arranged on both sides of the ends of the connecting seat (11); the support plates (12) are in the form of a disc; the ends of the connecting seat (11) and the support plates (12) are provided with reinforcing ribs (13); two reinforcing ribs (13) are provided and are distributed parallel to each other.

4. The quick-locking bicycle folding device according to claim 3, characterized in that: The fixing member (2) comprises a connecting rod (21) and a mounting plate (22) fixedly connected to one end of the connecting rod (21); a connecting groove (24) is horizontally provided at one end of the connecting rod (21) away from the mounting plate (22); rotating holes (26) are provided on both side walls of the connecting groove (24); and a pin (5) is fixedly connected to the rotating hole (26).

5. The quick-locking bicycle folding device according to claim 4, characterized in that: A support seat (23) is provided on both side walls of the connection groove (24); the support seat (23) is an arc-shaped structure, and an arc-shaped groove (25) is provided near the rotation hole (26); the outer side wall of the support seat (23) is slidably connected with the inner side wall of the support plate (12); and a groove (17) is provided on the side edge of the connection seat (11) for rotationally connecting with the support seat (23).

6. The quick-locking bicycle folding device according to claim 5, characterized in that: A bushing (4) is fixedly connected to the inner wall of the connecting hole (15). The bushing (4) is of a cylindrical structure, and the inner wall of the bushing (4) is rotatably connected with the pin (5). Annular grooves (41) are provided at both ends of the bushing (4). Balls (42) are rollingly connected inside the annular groove (41). A plurality of balls (42) are provided and are closely distributed in an annular array inside the annular groove (41). The balls (42) are rollingly connected with the side wall of the connecting groove (24) near the rotating hole (26).

7. The quick-locking bicycle folding device according to claim 1, characterized in that: The guide plates (32) are provided with two and are distributed parallel to each other on the connecting rod (21) near a side of the connecting block (14) where a limited insertion hole (16) is provided. The guide plates (32) are provided with through holes for sliding connection with the insertion rod (33).

8. The quick-locking bicycle folding device according to claim 4, characterized in that: A slide rod (34) is vertically fixedly connected to the middle of the rod body of the insertion rod (33), and limited shifting blocks (35) are fixedly connected to the two ends of the connection groove (24).

9. The quick-locking bicycle folding device according to claim 8, characterized in that: The connecting rod (21) is provided with a guide rail (31) on the same side of the guide plate (32) and is slidably connected to the sliding rod (34).

10. The quick-locking bicycle folding device according to claim 9, characterized in that: A return spring (36) is sleeved on the side of the insertion rod (33) away from the connecting piece (1), and two ends of the return spring (36) are respectively in close contact with the slide rod (34) and one of the two guide plates (32) away from the connecting piece (1).

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