Folding mechanism assembly

Abstract

The utility model provides a folding mechanism assembly which comprises a folding box connected with a frame of an electric bicycle, a sliding button with one end extending into the folding box, a rotating shaft arranged at the end of the folding box, a folding arm rotationally connected to the rotating shaft and a positioning clamping block connected to the folding arm. The part, extending into the folding box, of the sliding button is fixedly connected with the limiting block, a plurality of positioning openings are formed in the positioning clamping block, and the positioning openings are clamped into the limiting block to position the folding arm. The folding mechanism assembly serves as an accessory of the electric bicycle and is installed on the electric bicycle, and multi-angle folding is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of electric bicycle accessories, specifically relating to a folding mechanism assembly. Background Technology

[0002] Electric bicycles are a type of transportation that uses electricity as its power source. They boast high energy conversion efficiency, making them more energy-efficient than motorcycles. Charging costs for electric bicycles are significantly lower than those for gasoline, and maintenance costs are also lower, making them practical and economical. Electric bicycles do not emit exhaust fumes, contributing to air pollution and improving urban air quality. Whether for urban commuting or short trips, electric bicycles can meet various needs. In congested urban traffic, their small size facilitates maneuvering and effectively reduces travel time. Modern electric bicycles are often equipped with intelligent systems such as smart locks, navigation, and self-diagnostic features, enhancing their convenience and safety. As a green mode of transportation, electric bicycles are becoming increasingly popular in modern society.

[0003] With the increasing popularity of electric bicycles, their functional requirements are becoming more diversified. For example, to meet the needs of family users, more and more electric bicycles are beginning to be equipped with additional devices, such as baby seats and backrests. However, in existing designs, many of these additional devices lack folding functionality, cannot be adjusted in angle, and have poor compatibility, failing to meet the needs of various usage scenarios. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model provides a folding mechanism assembly, which is used as an accessory for electric bicycles and installed on electric bicycles to achieve multi-angle folding.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A folding mechanism assembly includes a folding box connected to the frame of an electric bicycle, a sliding button with one end extending into the folding box, a pivot shaft disposed at the end of the folding box, a folding arm rotatably connected to the pivot shaft, and a positioning block connected to the folding arm. The portion of the sliding button extending into the folding box is fixedly connected to a limiting block. The positioning block has multiple positioning openings, which engage with the limiting block to position the folding arm.

[0007] Furthermore, the cross-section of the folding box is U-shaped. The folding box includes two parallel side plates and a bottom plate for connecting the two side plates. Each of the two side plates has a first through hole near the end of the folding arm. The positions of the two first through holes are corresponding. One side plate has a second through hole for the sliding button to pass through and enter the folding box. The second through hole is, for example, located below the first through hole. The side plates on both sides of the second through hole have slots. The other side plate has a protrusion protruding into the folding box. The protrusion is, for example, cylindrical and faces the second through hole. The bottom plate has a support plate. The support plate is, for example, perpendicularly connected to the bottom plate. The support plate has a third through hole, which is coaxial with the second through hole.

[0008] Furthermore, the folding arm includes a sleeve rotatably connected to a pivot and an arm rod perpendicularly connected to the sleeve, the arm rod having a threaded through hole.

[0009] Furthermore, a spacer is provided on the pivot between the two side plates. There are two spacers arranged opposite each other. A fourth through hole is opened in the center of the spacer. The spacer includes an insertion part that inserts into the sleeve and a blocking part integrally connected to one end of the insertion part. The insertion part is a cylinder with a central hole, and the blocking part is an annular disc. The outer diameter of the blocking part is larger than the outer diameter of the insertion part. The outer wall of the insertion part is close to the inner wall of the sleeve, and the inner wall of the insertion part is close to the outer wall of the pivot. The two sides of the sleeve abut against the two blocking parts respectively. The spacer can be made of rubber, for example. When the rider rotates the folding arm, the folding arm and the spacer drive the pivot to rotate in the first through hole.

[0010] Furthermore, the positioning block is an arc-shaped plate with a certain thickness. The diameter of the circle containing the inner arc edge of the positioning block is equal to the outer diameter of the sleeve. The arc-shaped inner wall of the positioning block is fixedly connected to the outer wall of the sleeve.

[0011] Furthermore, multiple positioning openings are sequentially arranged along the arc-shaped outer wall of the positioning block.

[0012] Furthermore, the rotating shaft is mounted in two first through holes. The rotating shaft is rod-shaped and has first enlarged portions at both ends. The first enlarged portions are located outside the side plate and are used to prevent the rotating shaft from slipping off the side plate.

[0013] Furthermore, the sliding button includes a straight rod portion and a second enlarged portion integrally connected to the straight rod portion. The end of the straight rod portion away from the second enlarged portion is provided with a positioning hole, and a positioning rod is inserted into the positioning hole. The straight rod portion passes through the second through hole, the third through hole and the limiting block in sequence. The second enlarged portion is located outside the folding box.

[0014] Furthermore, a compression spring is provided between the protrusion and the support plate. One end of the spring is looped around the protrusion, preferably one end of the spring is fixedly connected to the protrusion, and the other end of the spring is sleeved on one end of the straight rod and abuts against the positioning rod. Preferably, the other end of the spring is fixedly connected to the straight rod.

[0015] Furthermore, the limiting block can be, for example, a rectangular plate, with its bottom surface abutting against the base plate, and the limiting block abutting against the support plate under the elastic force of the spring, and the positioning opening engaging one of the top corners of the limiting block.

[0016] Furthermore, the portion of the sliding button located outside the side panel is enclosed by a protective sleeve, which has locking feet that engage with the slots to prevent accidental activation of the sliding button.

[0017] The beneficial effects of this utility model are:

[0018] This utility model discloses a folding mechanism assembly. By including a folding box, a rotating shaft, and a folding arm rotatably connected to the shaft, the angle of the folding arm can be adjusted by rotating the folding arm, thus accommodating passengers of different sizes and improving riding comfort. Positioning blocks and openings on the folding arm allow for positioning at different angles. Limit blocks support the folding arm. Springs and sliding buttons ensure smooth rotation of the folding arm and simultaneously engage it after rotation. This folding mechanism assembly is compact, easy to use, and eliminates the need for tools to adjust the folding arm angle, making it economical and practical. Attached Figure Description

[0019] Figure 1 This is a first-view structural schematic diagram of a folding mechanism assembly according to the present invention.

[0020] Figure 2 This is a second-view structural schematic diagram of a folding mechanism assembly according to the present invention.

[0021] Figure 3 This is a third-view structural schematic diagram of a folding mechanism assembly according to the present invention.

[0022] Figure 4 This is a fourth-view structural schematic diagram of a folding mechanism assembly according to the present invention.

[0023] Figure 5 This is an exploded view of a folding mechanism assembly according to the present invention.

[0024] Figure label:

[0025] 1-Folding box, 101-Side plate, 102-Bottom plate, 103-First through hole, 104-Second through hole, 105-Bayonet, 106-Protrusion, 107-Support plate, 108-Third through hole, 2-Sliding button, 201-Straight rod, 202-Second enlarged part, 203-Positioning hole, 3-Rotating shaft, 301-First enlarged part, 4-Folding arm, 401-Sleeve, 402-Arm rod, 5-Positioning block, 6-Limiting block, 7-Positioning opening, 8-Spacer, 801-Insertion part, 802-Blocking part, 9-Positioning rod, 10-Spring, 11-Protective sleeve, 1101-Clamping foot. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0027] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of 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.

[0029] The present invention will be further described below with reference to the accompanying drawings.

[0030] like Figure 1-5As shown, the present invention discloses a folding mechanism assembly, which includes a folding box 1 connected to the frame of an electric bicycle, a sliding button 2 with one end extending into the folding box 1, a rotating shaft 3 disposed at the end of the folding box 1, a folding arm 4 rotatably connected to the rotating shaft 3, and a positioning block 5 connected to the folding arm 4. The part of the sliding button 2 extending into the folding box 1 is fixedly connected to a limiting block 6. The positioning block 5 has multiple positioning openings 7, which are engaged with the limiting block 6 to position the folding arm 4.

[0031] The folding box 1 has a U-shaped cross-section. The folding box 1 includes two parallel side plates 101 and a bottom plate 102 for connecting the two side plates 101. Each of the two side plates 101 has a first through hole 103 near the end of the folding arm 4. The two first through holes 103 are positioned correspondingly. One side plate 101 has a second through hole 104 for the sliding button 2 to pass through and enter the folding box 1. The second through hole 104 is located, for example, below the first through hole 103. The side plates 101 on both sides of the second through hole 104 have latches 105. The other side plate 101 has a protrusion 106 protruding into the folding box 1. The protrusion 106 is, for example, cylindrical and faces the second through hole 104. The bottom plate 102 has a support plate 107, which is, for example, perpendicularly connected to the bottom plate 102. The support plate 107 has a third through hole 108, which is coaxial with the second through hole 104.

[0032] The folding arm 4 includes a sleeve 401 rotatably connected to the pivot 3 and an arm 402 perpendicularly connected to the sleeve 401. The arm 402 is provided with a threaded through hole, and the arm 402 can be connected to the backrest of the electric bicycle seat, for example.

[0033] Spacers 8 are provided on the pivot 3 between the two side plates 101. There are two spacers 8 arranged opposite each other. A fourth through hole is opened in the center of each spacer 8. Each spacer 8 includes an insertion part 801 that inserts into the sleeve 401 and a blocking part 802 integrally connected to one end of the insertion part 801. The insertion part 801 is a cylinder with a central hole. The blocking part is an annular disc. The outer diameter of the blocking part is larger than the outer diameter of the insertion part 801. The outer wall of the insertion part 801 is in close contact with the inner wall of the sleeve 401. The inner wall of the insertion part 801 is in close contact with the outer wall of the pivot 3. The two sides of the sleeve 401 abut against the two blocking parts respectively. The spacers 8 can be made of rubber, for example. When the rider rotates the folding arm 4, the folding arm 4 and the spacers 8 drive the pivot 3 to rotate in the first through hole 103.

[0034] The positioning block 5 is an arc-shaped plate with a certain thickness. The diameter of the circle containing the inner arc edge of the positioning block 5 is equal to the outer diameter of the sleeve 401. The arc-shaped inner wall of the positioning block 5 is fixedly connected to the outer wall of the sleeve 401.

[0035] Multiple positioning openings 7 are sequentially arranged along the arc-shaped outer wall of the positioning block 5.

[0036] The rotating shaft 3 is mounted in two first through holes 103. The rotating shaft 3 is rod-shaped and has first enlarged portions 301 at both ends. The first enlarged portions 301 are located outside the side plate 101 and are used to prevent the rotating shaft 3 from slipping off the side plate 101.

[0037] The sliding button 2 includes a straight rod portion 201 and a second enlarged portion 202 integrally connected to the straight rod portion 201. The end of the straight rod portion 201 away from the second enlarged portion 202 is provided with a positioning hole 203. A positioning rod 9 is inserted into the positioning hole 203. The straight rod portion 201 passes through the second through hole 104, the third through hole 108 and the limiting block 6 in sequence. The second enlarged portion 202 is located outside the folding box 1.

[0038] A compression spring 10 is provided between the protrusion 106 and the support plate 107. One end of the spring 10 is looped around the protrusion 106, and preferably one end of the spring 10 is fixedly connected to the protrusion 106. The other end of the spring 10 is sleeved on one end of the straight rod 201 and abuts against the positioning rod 9, and preferably the other end of the spring 10 is fixedly connected to the straight rod 201.

[0039] The limiting block 6 can be a rectangular plate, for example. The bottom surface of the limiting block 6 abuts against the base plate 102. Under the elastic force of the spring 10, the limiting block 6 abuts against the support plate 107. The positioning opening 7 is engaged with one of the top corners of the limiting block 6.

[0040] The portion of the sliding button 2 located outside the side panel 101 is surrounded by a protective sleeve 11. The protective sleeve 11 has a locking foot 1101 that engages with the locking slot 105. The protective sleeve 11 is used to prevent the sliding button 2 from being accidentally activated.

[0041] A method of using the folding mechanism assembly of this utility model:

[0042] With attachment Figure 2 Using the placement position as a reference, the angle between the folding arm 4 and the folding box 1 is 180 degrees. When the angle of the folding arm 4 needs to be adjusted, the rider holds the arm lever 402 of the folding arm 4 with one hand and pushes the sliding button 2 towards the inside of the folding box 1 with the finger of the other hand, so that the top corner of the limiting block 6 disengages from the positioning opening 7. Then, rotate the arm lever 402 counterclockwise until the next positioning opening 7 can be engaged with the top corner of the limiting block 6. Release the sliding button 2, and the limiting block 6 returns to the initial position under the elastic force of the spring 10. At this time, the top corner of the limiting block 6 is engaged with the second positioning opening 7, positioning the folding arm 4 and adjusting the angle of the folding arm 4.

[0043] The preferred embodiments of this utility model have been described above; however, the above description is not intended to be limiting. Those skilled in the art can make many changes or modifications to this utility model without departing from its spirit and scope. Such changes or modifications should be included within the scope of the appended claims.

Claims

1. A folding mechanism assembly, characterized in that, It includes a folding box (1) connected to the frame of an electric bicycle, a sliding button (2) with one end extending into the folding box (1), a pivot (3) located at the end of the folding box (1), a folding arm (4) rotatably connected to the pivot (3), and a positioning block (5) connected to the folding arm (4). The part of the sliding button (2) extending into the folding box (1) is fixedly connected to the limiting block (6). The positioning block (5) has multiple positioning openings (7), which are engaged with the limiting block (6) to position the folding arm (4).

2. The folding mechanism assembly according to claim 1, characterized in that, The folding box (1) has a U-shaped cross-section. The folding box (1) includes two parallel side plates (101) and a bottom plate (102) for connecting the two side plates (101). Each of the two side plates (101) has a first through hole (103) near the end of the folding arm (4). The two first through holes (103) are in corresponding positions. One of the side plates (101) has a second through hole (104) for the sliding button (2) to pass through and enter the folding box (1). Located below the first through hole (103), the side plates (101) on both sides of the second through hole (104) have slots (105), and the other side plate (101) has a protrusion (106) protruding into the folding box (1), the protrusion (106) is directly opposite the second through hole (104), the bottom plate (102) has a support plate (107), the support plate (107) has a third through hole (108), the third through hole (108) is coaxial with the second through hole (104).

3. The folding mechanism assembly according to claim 2, characterized in that, The folding arm (4) includes a sleeve (401) rotatably connected to a pivot (3) and an arm (402) perpendicularly connected to the sleeve (401).

4. The folding mechanism assembly according to claim 3, characterized in that, A spacer (8) is provided on the pivot (3) between the two side plates (101). There are two spacers (8) arranged opposite to each other. A fourth through hole is opened in the center of the spacer (8). The spacer (8) includes an insertion part (801) for inserting into the sleeve (401) and a blocking part (802) integrally connected to one end of the insertion part (801). The outer wall of the insertion part (801) is close to the inner wall of the sleeve (401). The inner wall of the insertion part (801) is close to the outer wall of the pivot (3). The two sides of the sleeve (401) abut against the two blocking parts respectively.

5. The folding mechanism assembly according to claim 3, characterized in that, The positioning block (5) is an arc-shaped plate. The diameter of the circle containing the inner arc edge of the positioning block (5) is equal to the outer diameter of the sleeve (401). The arc-shaped inner wall of the positioning block (5) is fixedly connected to the outer wall of the sleeve (401).

6. The folding mechanism assembly according to claim 1 or 5, characterized in that, Multiple positioning openings (7) are sequentially arranged along the arc-shaped outer wall of the positioning block (5).

7. The folding mechanism assembly according to claim 2, characterized in that, The rotating shaft (3) is mounted in two first through holes (103). The rotating shaft (3) is rod-shaped and has first enlarged parts (301) at both ends. The first enlarged parts (301) are located outside the side plate (101).

8. The folding mechanism assembly according to claim 2, characterized in that, The sliding button (2) includes a straight rod (201) and a second enlarged part (202) integrally connected to the straight rod (201). The end of the straight rod (201) away from the second enlarged part (202) is provided with a positioning hole (203). A positioning rod (9) is inserted into the positioning hole (203). The straight rod (201) passes through the second through hole (104), the third through hole (108) and the limiting block (6) in sequence. The second enlarged part (202) is located outside the folding box (1).

9. The folding mechanism assembly according to claim 2, characterized in that, A compression spring (10) is provided between the protrusion (106) and the support plate (107). One end of the spring (10) is looped around the protrusion (106), and the other end of the spring (10) is sleeved on one end of the straight rod (201) and abuts against the positioning rod (9).

10. The folding mechanism assembly according to claim 9, characterized in that, The limiting block (6) is a rectangular plate. The bottom surface of the limiting block (6) abuts against the base plate (102). Under the elastic force of the spring (10), the limiting block (6) abuts against the support plate (107). The positioning opening (7) is inserted into one of the top corners of the limiting block (6).

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