Electric power-assisted bicycle frame and electric power-assisted bicycle

Abstract

The utility model belongs to the technical field of bicycle frames, and particularly relates to an electric power-assisted bicycle frame and an electric power-assisted bicycle, the electric power-assisted bicycle frame comprises a main frame, the main frame comprises a sleeve, the sleeve is in a hollow cylindrical shape, a vertical rod is arranged in an inner cavity of the sleeve in a lifting sliding mode, the upper end of the vertical rod is located above the sleeve and used for installing a cushion, and the lower end of the vertical rod is located above the sleeve and used for installing the cushion. And inserting holes are formed in a rod body of the vertical rod at intervals from top to bottom in a surrounding manner by taking the central axis of the rod body as the center. A user stirs the rotating ring to rotate through the shifting piece, so that the middle of the ejecting block extrudes the side edge of the pulling plate, the pulling plate drives the sliding rod, the inserting block is pulled out of the current inserting hole, the height of the vertical rod can be freely adjusted at the moment, and when the height is adjusted almost, the rotating ring is stitched through the shifting piece to enable the ejecting block to reset. And the springs push the insertion blocks to be inserted into the current insertion holes, so that the multiple insertion blocks are inserted into the multiple insertion holes at the same height at the same time, and the stability of the vertical rods after height adjustment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycle frames, in particular to an electric power-assisted bicycle frame and an electric power-assisted bicycle. Background Art

[0002] An electric-assisted bicycle is a new type of two-wheeled vehicle, a type of bicycle. It uses batteries as an auxiliary power source, is equipped with an electric motor, and features a power-assist system, enabling both human-powered riding and motor-assisted propulsion. Publication (announcement) No. CN218021943U discloses a shock-absorbing electric-assisted bicycle frame, comprising a main frame and a shock-absorbing mechanism.

[0003] Although the above-mentioned patent can change the height of the seat by adjusting the height of the vertical rod, it only uses simple fastening bolts to support the surface of the vertical rod and relies on friction to lock the vertical rod. The top of the vertical rod is used to install the seat. Therefore, when a heavier user sits on the seat, it is easy to cause the vertical rod to fall. Therefore, the stability of the vertical rod is weak. Therefore, it is necessary to develop an electric power-assisted bicycle frame. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0006] An electric-assisted bicycle frame includes a main frame, the main frame including a sleeve, the sleeve being hollow cylindrical and having an inner cavity provided with a vertical rod that is movable up and down, the upper end of the vertical rod being located above the sleeve and used for mounting a seat cushion, the shaft of the vertical rod being provided with sockets spaced from top to bottom in a surrounding manner around its own central axis;

[0007] An annular fixing ring is fixedly provided on the outer wall of the sleeve, and at least four sliding rods are provided on the inner and outer walls of the fixing ring so as to slide around the center of the fixing ring. An insert block for inserting into the jack is fixedly provided on one end of the sliding rod located on the inner side of the fixing ring, and the outer diameter of the insert block is larger than the outer diameter of the sliding rod. A spring is fixedly provided between the side of the insert block close to the sliding rod and the inner wall of the fixing ring, and the shaft of the sliding rod passes through the coil of the spring.

[0008] A vertical pull plate is fixedly provided at one end of the slide rod away from the insert block, and an annular swivel is rotatably provided on the outer wall of the fixed ring. A top block for squeezing the inner side of the pull plate is provided on the outer wall of the swivel with its own ring center as the center, and the top block is in the shape of a "peak";

[0009] When the middle portion of the top block presses the pull plate close to one side of the rotating ring, the pull plate drives the sliding rod to pull the inserting block out of the hole of the inserting hole.

[0010] As a preferred solution of the electric-assisted bicycle frame described in the utility model, a paddle is provided on the outer side wall of the swivel away from the top block, and the outer side wall of the paddle is provided with anti-slip grooves.

[0011] As a preferred solution of the electric-assisted bicycle frame described in the utility model, the outer side wall of the fixed ring is located below the rotating ring and is fixedly provided with an annular lower limit ring, and the outer side wall of the fixed ring is located above the rotating ring and is fixedly provided with an annular upper limit ring, the upper limit ring is provided with a notch for the sliding rod to move, and the upper and lower edges of the rotating ring are respectively in contact with the upper limit ring and the lower limit ring.

[0012] As a preferred solution of the electric-assisted bicycle frame described in the utility model, the vertical rod is fixed with multiple vertical positioning slides around its own central axis, the positioning slides are staggered with the sockets, and the inner side wall of the sleeve is provided with a positioning slide groove for the positioning slides to slide vertically.

[0013] As a preferred solution of the electric-assisted bicycle frame described in the utility model, the inner side wall of the fixing ring is spaced apart from the outer side wall of the sleeve, and the outer side wall of the sleeve is provided with a fixing block protruding around its own central axis, and the other end of the fixing block is fixed to the inner side wall of the fixing ring.

[0014] As a preferred solution of the electric-assisted bicycle frame described in the utility model, the inner and outer side walls of the sleeve are provided with through holes for the insertion blocks to pass through.

[0015] As a preferred solution of the electric-assisted bicycle frame described in the utility model, the edge and surface of one side of the pull plate close to the swivel are smooth, and the edge and surface of one side of the top block used for squeezing the pull plate are smooth.

[0016] As a preferred solution of the electric-assisted bicycle described in the present invention, it includes the electric-assisted bicycle frame described above.

[0017] The beneficial effect of the present invention is that when the height of the seat cushion needs to be adjusted, the user turns the rotating ring through the paddle, so that the middle part of the top block squeezes the side of the pull plate, and the pull plate drives the sliding rod to pull the plug block out of the hole of the current socket. At this time, the vertical rod can be freely adjusted in height. When the height adjustment is almost done, the rotating ring is turned through the paddle to reset the top block. If the pull plate does not move at this time, the vertical rod is appropriately raised or lowered to align the plug block with the nearest socket. At this time, the spring pushes the plug block to be inserted into the hole of the current socket, so that multiple plug blocks can be inserted into the holes of multiple sockets at the same height at the same time, thereby improving the stability of the vertical rod after height adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive labor. Among them:

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2 It is a structural diagram of some components of the utility model;

[0021] Figure 3 For this utility model Figure 2 Exploded image;

[0022] Figure 4 This is a schematic structural diagram of the fixing ring and its mounting components of the utility model;

[0023] Figure 5 For this utility model Figure 4 Exploded image;

[0024] Figure 6 This is a cross-sectional view of the vertical rod of the utility model.

[0025] In the figure: main frame 100, sleeve 101, vertical rod 102, socket 103, fixing ring 104, slide rod 105, insert block 106, spring 107, pull plate 108, swivel 109, top block 110, paddle 111, lower limit ring 112, upper limit ring 113, notch 114, positioning slide 115, positioning slot 116, fixing block 117, through hole 118. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing the embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0029] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0030] See also Figures 1-6 , which shows a schematic structural diagram of an electric power-assisted bicycle frame embodiment of the present invention, please refer to Figures 1-6 , a detailed introduction to an electric assisted bicycle frame is given.

[0031] An electric-assisted bicycle frame includes a main frame 100, the main frame 100 including a sleeve 101. The sleeve 101 is hollow and cylindrical, and a vertical rod 102 is provided in its inner cavity for lifting and sliding. The upper end of the vertical rod 102 is located above the sleeve 101 and is used to mount a seat cushion. The shaft of the vertical rod 102 is centered around its own central axis and has sockets 103 spaced from top to bottom.

[0032] An annular fixing ring 104 is fixedly provided on the outer wall of the sleeve 101. At least four sliding rods 105 are slidably provided on the inner and outer walls of the fixing ring 104 in a circumferential manner with the center of the ring as the center. An insert block 106 for inserting into the socket 103 is fixedly provided on one end of the sliding rod 105 located on the inner side of the fixing ring 104. A through hole 118 for the insert block 106 to pass through is opened on the inner and outer walls of the sleeve 101. The outer diameter of the insert block 106 is larger than the outer diameter of the sliding rod 105. A spring 107 is fixedly provided between the side of the insert block 106 close to the sliding rod 105 and the inner wall of the fixing ring 104. The shaft of the sliding rod 105 passes through the loop of the spring 107.

[0033] A vertical pull plate 108 is fixedly provided at one end of the slide bar 105 away from the insert block 106. An annular swivel 109 is rotatably provided on the outer wall of the fixed ring 104. A top block 110 for squeezing the inner side of the pull plate 108 is protruded from the outer wall of the swivel 109 around its own ring center. The top block 110 is in the shape of a "peak".

[0034] When the middle portion of the top block 110 presses the pull plate 108 close to the side of the rotating ring 109, the pull plate 108 drives the slide bar 105 to pull the insert block 106 out of the hole 103;

[0035] Wherein: the outer wall of the rotating ring 109 is protruded with a paddle 111 away from the top block 110, and the outer wall of the paddle 111 is provided with anti-slip grooves, which facilitates the rotation of the rotating ring 109 by paddle 111;

[0036] Among them: the outer wall of the fixed ring 104 is located below the rotating ring 109 and is fixedly provided with an annular lower limit ring 112, and the outer wall of the fixed ring 104 is located above the rotating ring 109 and is fixedly provided with an annular upper limit ring 113, and the upper limit ring 113 is provided with a notch 114 for the movement of the slide bar 105, and the upper and lower edges of the rotating ring 109 are respectively fitted with the upper limit ring 113 and the lower limit ring 112, and the rotating ring 109 is limited up and down by the lower limit ring 112 and the upper limit ring 113, so as to prevent the rotating ring 109 from falling off the fixed ring 104;

[0037] The vertical rod 102 is fixed with a plurality of vertical positioning slides 115 around its central axis. The positioning slides 115 are staggered with the insertion holes 103. The inner wall of the sleeve 101 is provided with positioning grooves 116 for the positioning slides 115 to slide vertically. The positioning slides 115 and the positioning grooves 116 ensure that the vertical rod 102 can only be raised and lowered in the sleeve 101, but cannot rotate, thereby preventing the insertion holes 103 from staggering with the insertion block 106.

[0038] The inner side wall of the fixing ring 104 is spaced apart from the outer side wall of the sleeve 101, and a fixing block 117 is provided on the outer side wall of the sleeve 101 in a surrounding manner with its central axis as the center. The other end of the fixing block 117 is fixed to the inner side wall of the fixing ring 104, and the spring 107 is located in the gap between the fixing ring 104 and the sleeve 101.

[0039] The edge and surface of one side of the pulling plate 108 close to the rotating ring 109 are smooth, and the edge and surface of one side of the pulling plate 108 used for squeezing the top block 110 are smooth, so that the top block 110 can more easily squeeze the side of the pulling plate 108 .

[0040] When the height of the seat needs to be adjusted, the user turns the rotating ring 109 through the paddle 111, so that the middle part of the top block 110 squeezes the side of the pull plate 108, and the pull plate 108 drives the slide bar 105 to pull the plug 106 out of the hole of the current socket 103. At this time, the vertical rod 102 can be freely adjusted in height. When the height adjustment is almost done, the rotating ring 109 is turned through the paddle 111 to reset the top block 110. If the pull plate 108 does not move at this time, the vertical rod 102 is appropriately raised or lowered so that the plug 106 is aligned with the nearest socket 103. At this time, the spring 107 pushes the plug 106 to be inserted into the hole of the current socket 103, thereby realizing that multiple plugs 106 are inserted into the holes of multiple sockets 103 at the same height at the same time, thereby improving the stability of the vertical rod 102 after the height is adjusted.

[0041] While the present invention has been described above with reference to specific embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as no structural conflicts exist, the various features of the embodiments disclosed herein may be combined with one another in any manner, and the omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. An electric power-assisted bicycle frame, characterized in that: The main frame (100) includes a sleeve (101), the sleeve (101) is in the shape of a hollow cylinder and has an inner cavity provided with a vertical vertical rod (102) that can be lifted and slid. The upper end of the vertical rod (102) is located above the sleeve (101) and is used to install a seat cushion. The shaft of the vertical rod (102) is centered around its own central axis and is provided with jacks (103) at intervals from top to bottom. An annular fixing ring (104) is fixedly provided on the outer wall of the sleeve (101), and at least four slide rods (105) are provided on the inner and outer walls of the fixing ring (104) so ​​as to slide around the center of the ring. An insert block (106) for inserting into the socket (103) is fixedly provided on one end of the slide rod (105) located on the inner side of the fixing ring (104), and the outer diameter of the insert block (106) is larger than the outer diameter of the slide rod (105), and a spring (107) is fixedly provided between the side of the insert block (106) close to the slide rod (105) and the inner wall of the fixing ring (104), and the shaft gap of the slide rod (105) passes through the circle of the spring (107); A vertical pull plate (108) is fixedly provided at one end of the slide rod (105) away from the insert block (106), and an annular rotating ring (109) is rotatably provided on the outer wall of the fixed ring (104). The outer wall of the rotating ring (109) is provided with a top block (110) for squeezing the inner side of the pull plate (108) in a circumferential protrusion with its own ring center as the center, and the top block (110) is in the shape of a "peak". When the middle of the top block (110) squeezes the pull plate (108) close to one side of the rotating ring (109), the pull plate (108) drives the slide bar (105) to pull the insert block (106) out of the hole of the insertion hole (103).

2. The electric-assisted bicycle frame according to claim 1, characterized in that: A paddle (111) is protruding from the outer side wall of the rotating ring (109) away from the top block (110), and the outer side wall of the paddle (111) is provided with anti-slip grooves.

3. The electric-assisted bicycle frame according to claim 1, characterized in that: The outer wall of the fixed ring (104) is located below the rotating ring (109) and is fixedly provided with an annular lower limit ring (112). The outer wall of the fixed ring (104) is located above the rotating ring (109) and is fixedly provided with an annular upper limit ring (113). The upper limit ring (113) is provided with a notch (114) for the sliding rod (105) to move. The upper and lower edges of the rotating ring (109) are respectively fitted with the upper limit ring (113) and the lower limit ring (112).

4. The electric-assisted bicycle frame according to claim 1, characterized in that: The shaft of the vertical rod (102) is fixedly provided with a plurality of vertical positioning slides (115) around its own central axis. The positioning slides (115) are arranged in an interlaced manner with the sockets (103). The inner side wall of the sleeve (101) is provided with positioning slots (116) for the positioning slides (115) to slide vertically.

5. The electric-assisted bicycle frame according to claim 1, characterized in that: The inner side wall of the fixing ring (104) is spaced apart from the outer side wall of the sleeve (101), and the outer side wall of the sleeve (101) is provided with a fixing block (117) protruding around its own central axis, and the other end of the fixing block (117) is fixed to the inner side wall of the fixing ring (104).

6. The electric-assisted bicycle frame according to claim 1, characterized in that: The inner and outer side walls of the sleeve (101) are provided with through holes (118) for the insert block (106) to pass through.

7. The electric-assisted bicycle frame according to claim 1, characterized in that: The edge and surface of one side of the pull plate (108) close to the rotating ring (109) are smooth, and the top block (110) is used to squeeze the edge and surface of one side of the pull plate (108) to be smooth.

8. An electric power-assisted bicycle, characterized in that: The electric-assisted bicycle frame comprises the frame described in any one of claims 1 to 7.

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