Bicycle folding locking mechanism

Abstract

The present invention provides a bicycle folding locking mechanism, which belongs to the field of non-motor vehicles, and includes an upper vertical tube and a lower vertical tube that are coaxially arranged and can slide up and down; a tie assembly is provided on the upper vertical tube, and the tie assembly includes a quick-release guide rail seat and a slider column, and the quick-release guide rail seat switches between open and locked states, so that the upper vertical tube can slide up and down relative to the lower vertical tube or be locked and fixed relative to the lower vertical tube; the slider column slides up and down relative to the quick-release guide rail seat and the two can be detachably fixed; a limit wrench is provided on the slider column, and a positioning protrusion is provided on the limit wrench, and a positioning groove is provided on the quick-release guide rail seat, and the positioning protrusion and the positioning groove are correspondingly arranged to form a tenon structure, so that the upper vertical tube and the lower vertical tube are assembled and fixed in place. The present invention is combined with the design of a quick-release tie assembly, and no effort is required during the folding process, and children can also use it easily. When combined, there is a fool-proof limit buckle design to avoid the situation where the installation is not in place.

Description

Technical Field

[0001] The invention belongs to the field of non-motor vehicle accessories, relates to bicycle accessories, and in particular to a bicycle folding locking mechanism. Background Art

[0002] Faced with the raging global epidemic, many commuters at home and abroad have switched from public transportation to personal travel in order to stay away from crowds and avoid infection. Bicycles have become a popular choice. Folding bicycles are loved by commuters for their quick folding and unfolding features. They can travel quickly in crowded cities and avoid traffic jams. They do not take up space in cities where every inch of land is valuable.

[0003] With the popularity of folding bicycles, there are fixed folding mechanisms on the market today, which are inconvenient to operate during the folding process. The practical operation is time-consuming and labor-intensive, and the folding is not fast enough, which limits the choices of consumers and cannot meet the needs of consumers of different age groups. Summary of the invention

[0004] The problem to be solved by the present invention is to provide a bicycle folding locking mechanism, which is combined with a quick-release tie design, so that no effort is required during the folding process, and children can also use it easily. When combined with an anti-fool limit buckle design, the situation of incomplete installation is avoided.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a bicycle folding locking mechanism comprises an upper vertical tube and a lower vertical tube which are coaxially arranged and can slide up and down;

[0006] The upper vertical tube is provided with a tie assembly, which includes a quick-release guide rail seat and a slider column. The quick-release guide rail seat can be switched between open and locked states. The upper vertical tube can be opened to slide up and down relative to the lower vertical tube, and the upper vertical tube can be locked and fixed relative to the lower vertical tube.

[0007] The slider column is arranged at one end away from the adjustment opening of the quick-release guide rail seat, the lower end of the slider column is fixed to the lower part of the lower vertical tube, the slider column slides up and down relative to the quick-release guide rail seat, and the two are detachably fixed;

[0008] The slider column slides to the upper limit position of the quick-release guide rail seat, and the quick-release guide rail seat flips relative to the slider column, so that the upper vertical tube flips outward and separates from the lower vertical tube;

[0009] A limit wrench is provided on the slider column, a positioning protrusion is provided on the limit wrench, a positioning groove is provided on the quick-release guide rail seat, and the positioning protrusion and the positioning groove are correspondingly arranged to form a tenon structure, so that the upper vertical pipe and the lower vertical pipe are assembled and fixed in place.

[0010] Furthermore, the lower vertical tube is arranged inside the upper vertical tube, the upper vertical tube is arranged inside the quick-release guide rail seat, and the upper vertical tube, the lower vertical tube and the quick-release guide rail seat are coaxially arranged.

[0011] Furthermore, the upper part of the limit spanner is hinged on the slider column through a fixing pin, and a positioning hole is provided at the upper end of the slider column. A reset spring is provided in the positioning hole so that the limit spanner can be reset without being affected by external force.

[0012] Furthermore, a fixing groove is provided on the slider column, the limit spanner is arranged in the fixing groove, the limit spanner is arranged flush with the end surface of the slider column, and a reset spring is arranged between the slider column and the limit spanner to have a pre-stressing effect on the limit spanner.

[0013] Furthermore, the lower end of the limit spanner protrudes downward from the slider column, and the protruding portion extends to a side away from the slider column, and an operating through hole is provided at the lower end of the limit spanner.

[0014] Furthermore, the positioning protrusion is arranged in the middle of the limit wrench, extending toward one side of the quick-release guide rail seat and downward at the same time. The positioning protrusion passes through the avoidance hole on the slider column and cooperates with the positioning groove on the quick-release guide rail seat to form a tenon structure.

[0015] Furthermore, a countersunk hole is provided at the lower end of the slider column, and a fixing screw is provided in the countersunk hole to fix the slider column and the lower vertical pipe, and the fixing screw does not interfere with the limit wrench.

[0016] Furthermore, a U-shaped groove is provided at a position corresponding to the quick-release guide rail seat and the slider column, the slider column is arranged in the U-shaped groove, and both sides of the U-shaped groove are provided with sliding grooves arranged vertically up and down. The slider column is detachably fixed relative to the quick-release guide rail seat by guide screws arranged on both sides of the upper end, so that the slider column can slide up and down relative to the quick-release guide rail seat.

[0017] Furthermore, the quick-release guide rail seat is a single-sided opening structure, and the tie assembly also includes a tie screw, which passes through the open end of the quick-release guide rail seat and is connected to the central axis. An eccentrically arranged quick-release wrench is provided on the central axis. The quick-release guide rail seat is opened or tightened by opening and closing the quick-release wrench, so that the upper vertical tube can be switched between an open state and a locked state.

[0018] Furthermore, the bundle assembly also includes an iron ingot gasket and a plastic ingot gasket, which are arranged between the quick release wrench and the quick release guide rail seat to prevent the quick release wrench from loosening under the closed turntable.

[0019] Compared with the prior art, the present invention has the following technical effects.

[0020] 1. In the present application, when the limit wrench is opened and engaged during the folding process of the folding slide rail mechanism, no other parts are connected to bear force, and the force applied is small, so that people of all ages can use this design. In addition, the upper and lower vertical tubes of this structure can be flipped and separated, which greatly reduces the volume of the bicycle folding mechanism, thereby reducing the weight of the product, which is beneficial to the weight reduction project of the product;

[0021] 2. In the present application, the latch mechanism is combined with the folding slide rail mechanism. When folding is completed, the upper vertical tube and the lower vertical tube can be clearly assembled together through the latch mechanism, which plays a limiting effect and avoids improper installation, which may cause technical problems during riding. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 is a cross-sectional view of the folding locking mechanism of the bicycle of the present invention;

[0024] Figure 2 The present invention Figure 1 Detailed drawing of Part A;

[0025] Figure 3 The present invention Figure 1 Detail of Part B;

[0026] Figure 4 is a top view of the folding locking mechanism of the bicycle of the present invention;

[0027] Figure 5 It is a rear view of the folding locking mechanism of the bicycle of the present invention;

[0028] Figure 6 It is a structural schematic diagram of the folding locking mechanism of the bicycle of the present invention in the assembled state;

[0029] Figure 7 It is a structural schematic diagram of the folding locking mechanism of the bicycle of the present invention in an open state.

[0030] Reference numerals:

[0031] 1. Upper vertical tube; 2. Quick-release guide rail seat; 21. Positioning slot; 3. Fixing screw; 4. Quick-release wrench; 5. Center axis; 6. Iron ingot gasket; 7. Plastic ingot gasket; 8. Clamp screw; 9. Slider column; 10. Fixing screw; 11. Guide rail screw; 12. Limit wrench; 121. Positioning protrusion; 122. Operation through hole; 13. Fixing pin; 14. Reset spring; 15. Lower vertical tube; 16. Sliding slot. DETAILED DESCRIPTION

[0032] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0035] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0036] like Figure 1 to Figure 7 As shown, the bicycle folding locking mechanism comprises an upper vertical tube 1 and a lower vertical tube 15 which are coaxially arranged and can slide up and down;

[0037] The upper vertical tube 1 is provided with a tie assembly, which includes a quick-release guide rail seat 2 and a slider column 9. The quick-release guide rail seat 2 can be switched between open and locked states. The upper vertical tube 1 can be opened to slide up and down relative to the lower vertical tube 15, and can be locked to lock the upper vertical tube 1 relative to the lower vertical tube 15. The tie assembly can be replaced with screw fastening, screw combined with nut fastening, and other extended fastening mechanisms, and any structure that can be used to achieve quick loosening and tightening fixation is available.

[0038] The slider column 9 is arranged at one end away from the adjustment port of the quick release guide rail seat 2, and the lower end of the slider column 9 is fixed to the lower part of the lower vertical tube 15. The slider column 9 slides up and down relative to the quick release guide rail seat 2 and the two are detachably fixed;

[0039] The slider column 9 slides to the upper limit position of the quick-release guide rail seat 2, and the quick-release guide rail seat 2 flips relative to the slider column 9, so that the upper vertical tube 1 flips outward and separates from the lower vertical tube 15;

[0040] A limit wrench 12 is provided on the slider column 9, a positioning protrusion 121 is provided on the limit wrench 12, a positioning groove 21 is provided on the quick-release guide rail seat 2, and the positioning protrusion 121 and the positioning groove 21 are correspondingly arranged to form a tenon structure so that the upper vertical tube 1 and the lower vertical tube 15 are assembled and fixed in place.

[0041] Preferably, the lower vertical tube 15 is arranged inside the upper vertical tube 1, and the upper vertical tube 1 is arranged inside the quick-release guide rail seat 2, and the upper vertical tube 1, the lower vertical tube 15 and the quick-release guide rail seat 2 are coaxially arranged.

[0042] Preferably, the upper part of the limit wrench 12 is hinged on the slider column 9 by a fixing pin 13, and a positioning hole is provided at the upper end of the slider column 9, and a reset spring 14 is provided in the positioning hole to ensure that the position of the positioning spring remains unchanged and there will be no problem of slipping and falling, so that the limit wrench 12 can be reset without being affected by external force; further, a fixing groove is provided on the slider column 9, and the limit wrench 12 is arranged in the fixing groove. The limit wrench 12 is arranged flush with the end surface of the slider column 9, so that the structure is more beautiful and reduces the protruding part. During operation, it is not easy to injure the operator, and the safety is higher. The reset spring 14 is arranged between the slider column 9 and the limit wrench 12, which has a pre-stressing effect on the limit wrench 12.

[0043] Preferably, the lower end of the limit wrench 12 protrudes downward from the slider column 9, and the protruding portion extends to a side away from the slider column 9. An operating through hole 122 is provided at the lower end of the limit wrench 12 to facilitate the operator to hold it.

[0044] Preferably, the positioning protrusion 121 is arranged in the middle of the limit wrench 12, extending toward one side of the quick-release guide rail seat 2 and downward at the same time, and the positioning protrusion 121 passes through the avoidance hole on the slider column 9 and cooperates with the positioning groove 21 on the quick-release guide rail seat 2 to form a tenon structure.

[0045] Preferably, a countersunk hole is provided at the lower end of the slider column 9, and a fixing screw 103 is provided in the countersunk hole to fix the slider column 9 and the lower vertical tube 15. The fixing screw 103 does not interfere with the limit wrench 12, ensuring that the entire structure is more compact and occupies less space, and does not affect the design and spatial changes of the overall structure of the bicycle.

[0046] Preferably, a U-shaped groove is provided at a position corresponding to the quick-release guide rail seat 2 and the slider column 9, and the slider column 9 is arranged in the U-shaped groove. Both sides of the U-shaped groove are provided with sliding grooves 16 vertically arranged up and down. The slider column 9 is detachably fixed relative to the quick-release guide rail seat 2 by guide rail screws 11 arranged on both sides of the upper end, so that the slider column 9 can slide up and down relative to the quick-release guide rail seat 2. The slide rail design can be replaced with a mechanism design based on the same principle, and any equivalent structure that can achieve relative up and down movement is acceptable.

[0047] Preferably, the quick-release guide rail seat 2 is a single-sided opening structure, and the tie assembly also includes a tie screw 8, which passes through the open end of the quick-release guide rail seat 2 and is connected to the central axis 5. An eccentrically arranged quick-release wrench 4 is provided on the central axis 5. The quick-release guide rail seat 2 is opened or tightened by opening and closing the quick-release wrench 4, so that the upper vertical tube 1 can be switched between an open state and a locked state; the tie assembly also includes an iron ingot gasket 6 and a plastic ingot gasket 7, which are arranged between the quick-release wrench 4 and the quick-release guide rail seat 2 to prevent the quick-release wrench 4 from loosening under the closed turntable, thereby ensuring the stability of the operation. More preferably, the height of one side of the open end of the quick-release guide rail seat 2 is less than the height of the other end, and the quick-release guide rail seat 2 is connected and fixed to the upper vertical tube 1 by a fixing screw 103.

[0048] During actual use, the quick-release guide rail seat 2 can be moved up and down and flipped by manually pulling the limit wrench 12, which is convenient for disassembly and folding. During reassembly, after the limit wrench 12 is loosened, the reset spring 14 will reset the limit wrench 12, and the positioning protrusion 121 on the limit wrench 12 and the positioning groove 21 on the quick-release guide rail seat 2 form an L-shaped tenon mechanism. After the installation is completed, the L-shaped tenon mechanism will enter the rectangular groove of the quick-release guide rail seat 2. In order to prevent the wrench from moving, a ring, magnetic suction or other extended fixing mechanism can be added to ensure the stability of the structure.

[0049] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A bicycle folding locking mechanism, characterized in that: It includes an upper vertical pipe and a lower vertical pipe which are coaxially arranged and can slide up and down; The upper vertical tube is provided with a tie assembly, which includes a quick-release guide rail seat and a slider column. The quick-release guide rail seat can be switched between open and locked states. The upper vertical tube can be opened to slide up and down relative to the lower vertical tube, and the upper vertical tube can be locked and fixed relative to the lower vertical tube. The slider column is arranged at one end away from the adjustment opening of the quick-release guide rail seat, the lower end of the slider column is fixed to the lower part of the lower vertical tube, the slider column slides up and down relative to the quick-release guide rail seat, and the two are detachably fixed; The slider column slides to the lower limit position of the quick-release guide rail seat, and the quick-release guide rail seat flips relative to the slider column, so that the upper vertical tube flips outward and separates from the lower vertical tube; A limit wrench is provided on the slider column, a positioning protrusion is provided on the limit wrench, a positioning groove is provided on the quick-release guide rail seat, and the positioning protrusion and the positioning groove are correspondingly arranged to form a tenon structure, so that the upper vertical pipe and the lower vertical pipe are assembled and fixed in place; The quick-release guide rail seat is a single-sided opening structure, and the clamp assembly also includes a clamp screw, which passes through the open end of the quick-release guide rail seat and is connected to the central axis. An eccentrically arranged quick-release wrench is provided on the central axis. The quick-release guide rail seat is opened or tightened by opening and closing the quick-release wrench, so that the upper vertical tube can be switched between the open and locked states.

2. The bicycle folding locking mechanism according to claim 1, characterized in that: The lower vertical tube is arranged inside the upper vertical tube, the upper vertical tube is arranged inside the quick-release guide rail seat, and the upper vertical tube, the lower vertical tube and the quick-release guide rail seat are coaxially arranged.

3. The bicycle folding locking mechanism according to claim 1, characterized in that: The upper part of the limit spanner is hinged on the slider column through a fixing pin. The upper end of the slider column is provided with a positioning hole. A reset spring is arranged in the positioning hole so that the limit spanner can be reset without being acted upon by external force.

4. The bicycle folding locking mechanism according to claim 3, characterized in that: The slider column is provided with a fixing groove, the limit spanner is arranged in the fixing groove, the limit spanner is arranged flush with the end surface of the slider column, and the reset spring is arranged between the slider column and the limit spanner to have a pre-compression effect on the limit spanner.

5. The bicycle folding locking mechanism according to claim 3, characterized in that: The lower end of the limit spanner protrudes downward from the slider column, and the protruding part extends to a side away from the slider column. The lower end of the limit spanner is provided with an operating through hole.

6. The bicycle folding locking mechanism according to claim 3, characterized in that: The positioning protrusion is arranged in the middle of the limit wrench, extending toward one side of the quick-release guide rail seat and downward at the same time. The positioning protrusion passes through the avoidance hole on the slider column and cooperates with the positioning groove on the quick-release guide rail seat to form a tenon structure.

7. The bicycle folding locking mechanism according to claim 1, characterized in that: A countersunk hole is arranged at the lower end of the slider column, and a fixing screw is arranged in the countersunk hole to fix the slider column and the lower vertical pipe, and the fixing screw does not interfere with the limit wrench.

8. The bicycle folding locking mechanism according to claim 1, characterized in that: A U-shaped groove is provided at a position corresponding to the quick-release guide rail seat and the slider column, the slider column is arranged in the U-shaped groove, and sliding grooves arranged vertically up and down are provided on both sides of the U-shaped groove. The slider column is detachably fixed relative to the quick-release guide rail seat by guide screws arranged on both sides of the upper end, so that the slider column can slide up and down relative to the quick-release guide rail seat.

9. The bicycle folding locking mechanism according to claim 1, characterized in that: The bundle assembly also includes an iron ingot gasket and a plastic ingot gasket, which are arranged between the quick release wrench and the quick release guide rail seat to prevent the quick release wrench from loosening in a closed state.

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