Folding handlebar

Abstract

The invention discloses a folding handlebar and aims to solve the problems that an existing bicycle is tedious in folding step and inconvenient to store. The device structurally comprises a taper handle, a gear box, a guide pipe and a front fork frame, each component comprises a plurality of sub-components, for example, the handle comprises a handle spring, a sector gear and the like, the gear box is provided with a rack block, the taper handle and the like, the guide pipe comprises a guide rod, a spring and the like, and the front fork frame is provided with a limiting block and a pin shaft; the core design lies in meshing linkage of the sector gear and the rack block and matching of the taper hole and the taper handle. During use, the handle is lifted to release the compression spring, and the guide rod is inserted into the groove of the front fork limiting block through gear transmission to finish limiting; during folding, the handle is stretched left and right to relieve taper fit, the gear rotates to lift the rack block to drive the guide rod to break away from the limiting groove, and the guide pipe and the front fork frame rotate downwards around the pin shaft to achieve folding. The design simplifies operation steps, tools are not needed, the linkage structure improves the folding efficiency, the storage space is reduced, and the folding mechanism is particularly suitable for baby carriage scenes.

Description

Technical Field

[0001] The present invention relates to the technical field of handlebars, in particular to a folding handlebar. Background Art

[0002] As a common means of transportation for children, the ease of folding a stroller has become a key concern for users. However, the folding process of existing strollers is often cumbersome, requiring multiple, coordinated movements and relying on auxiliary tools and detailed tutorials, causing significant inconvenience for users.

[0003] Especially for parents, the complicated folding process is not only time-consuming and laborious, but can also affect the user experience due to improper operation. At the same time, existing folding structures often still occupy a large space after folding, making it difficult to store and carry.

[0004] In the existing technology, the limit and folding mechanism design of traditional children's bicycles is relatively complex and lacks an efficient linkage mechanism, which means that the folding and limit functions need to be implemented in steps, which makes it difficult to meet users' needs for convenience and efficiency. The market needs a handlebar folding technology that is simplified in operation and easy to store. Summary of the Invention

[0005] The object of the present invention is to provide a foldable handlebar.

[0006] In order to achieve the above object, the present invention provides the following technical solutions: A folding handlebar, comprising a handle, a gear box, a guide tube, and a front fork frame; the handle comprises a handle spring, a nylon guide sleeve, a handle nut, a tapered hole, a handle rod, and a sector gear; the gear box comprises a rack block, a rack block box nut, a gear rod pin, and a tapered handle; the guide tube comprises a guide rod, a guide rod spring, and a guide rod spring stopper; the front fork frame comprises a front fork limit block and a front fork pin; The sector gear and the handlebar are integrally formed and are rotatably connected to the gear box via a gearbar pin. The handle is mounted on the outside of the handlebar, with a tapered hole formed at one end of the handlebar, and a corresponding tapered handle is provided on the gear box. The handle nut is mounted on one end of the handlebar for fixing a nylon guide sleeve. The handle spring is located between the handlebar and the handlebar, and is hinged to the nylon guide sleeve and a protrusion inside the handlebar. The rack block is meshed with the left and right sector gears; a tapered handle is provided on the outside of the gear box for fixing the handle, and a hole is provided in the middle of the gear box; a gear box nut is used to fix the guide rod on the rack block; the guide tube is fixedly connected to the gear box, a guide rod is provided in the guide tube, the guide rod spring is provided on the outside of the guide rod, the guide rod spring is hinged on the guide rod, and a guide rod spring stopper is provided at the lower part of the guide rod spring; The front fork frame and the front fork frame limit block are fixedly connected, and the front fork frame limit block is provided with a groove; the lower part of the guide tube is provided with a baffle corresponding to the front fork frame, and the baffle is provided with a groove, and the front fork pin shaft is rotatably connected with the groove on the guide tube baffle through the front fork pin shaft.

[0007] Preferably, the taper of the tapered hole and the tapered handle is 5°. Beneficial effects

[0008] This invention is extremely easy to operate, requiring no tools. Simply stretching or pressing the handlebars allows for both release and folding, significantly simplifying the multi-step process of folding a conventional bicycle. The 5° tapered hole and tapered handlebars, combined with the spring's elastic potential, ensure stability during riding and quick release during folding. The linkage structure integrates the folding and limit functions, significantly reducing space consumption when folded, improving storage and portability, and effectively resolving the cumbersome and bulky folding requirements of existing bicycles.

[0009] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a diagram showing the handle's position limiting state of the present invention; Figure 2 This is a diagram showing the state of lifting the body according to the present invention; Figure 3 This is an enlarged view of area A of the present invention; Figure 4 This is an enlarged view of area B of the present invention; Figure 5 This is a diagram of the handle of the present invention in a stretched state; Figure 6 This is a diagram showing the handle of the present invention in a folded state; Figure 7 This is an enlarged view of region C of the present invention; Figure 8 This is an enlarged view of region D of the present invention; Figure 9 It is a side view of the structure of the present invention; Figure 10 This is a diagram of the folding body of the structure of the present invention; Figure 11 This is an enlarged view of region E of the present invention; Figure 12 This is an enlarged view of region F of the present invention; In the figure: handle 1; handle spring 101; nylon guide sleeve 102; handle nut 103; tapered hole 104; handle rod 105; sector gear 106; gear box 2; rack block 201; gear box nut 202; gear rod pin 203; tapered handle 204; guide tube 3; guide rod 301; guide rod spring 302; guide rod spring stop 303; front fork frame 4; front fork limit block 401; front fork pin 402. DETAILED DESCRIPTION

[0011] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0012] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0013] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0014] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0015] like Figures 1-12As shown, a folding handlebar includes a handle 1, a gear box 2, a guide tube 3 and a front fork frame 4; the handle 1 includes a handle spring 101, a nylon guide sleeve 102, a handle nut 103, a tapered hole 104, a handle rod 105 and a sector gear 106; the gear box 2 includes a rack block 201, a gear box nut 202, a gear rod pin 203 and a tapered handle 204; the guide tube 3 includes a guide rod 301, a guide rod spring 302, and a guide rod spring stopper 303; the front fork frame 4 includes a front fork limit block 401 and a front fork pin 402.

[0016] The sector gear 106 and the handle rod 105 are integrally formed and are rotatably connected to the gear box 2 through the gear rod pin 203. The handle 1 is sleeved on the outside of the handle rod 105. A tapered hole 104 is opened at one end of the handle. The gear box 2 is provided with a corresponding tapered handle 204. The handle nut 103 is sleeved on one end of the handle rod 105 for fixing the nylon guide sleeve 102. The handle spring 101 is arranged between the handle 1 and the handle rod 105 and is hinged to the nylon guide sleeve 102 and the protrusion inside the handle 1; the rack block 201 is meshed with the sector gear 106. A tapered handle 204 is provided on the outside of the gear box 2 for fixing the handle 1. There is a hole in the middle of the gear box 2. The wheel box nut 202 is used to fix the guide rod 301 on the gear box 2; the conduit 3 and the gear box 2 are fixedly connected, a guide rod 301 is provided in the conduit 3, a guide rod spring 302 is provided outside the guide rod 301, the guide rod spring 302 is hinged to the guide rod 301, and a guide rod spring stopper 303 is provided at the lower part of the guide rod spring 302; a baffle corresponding to the front fork frame 4 is provided at the lower part of the conduit 3, a groove is provided on the baffle, and the front fork frame 4 and the front fork frame limit block 401 are fixedly connected; a groove is provided on the front fork frame limit block 401, so that the guide rod 301 can be inserted into its groove to achieve a limiting effect, and the front fork pin shaft 402 is rotatably connected to the groove on the baffle of the conduit 3 through the front fork pin shaft 402.

[0017] Preferably, the taper of the tapered hole 104 and the tapered handle 204 is 5°.

[0018] When using: When preparing to ride, Figures 1 to 4 Lift your body (such as Figure 2 ), at an angle of 70° to the vehicle body, lift the handle 1 and compress the handle spring 101 outward, so that the handle spring 101 enters a compressed state. At the same time, the handle 1 drives the handle rod 105 and the sector gear 106 to rotate. When the sector gear 106 rotates, it drives the rack block 201 to descend. Since the guide rod spring 302 and the guide rod 301 are hinged, the guide rod spring 302 will pull it down, aligning the tapered hole 104 of the handle 1 with the tapered handle 204. Release the handle 1. At this time, the handle spring 101 will use elastic potential energy to put the handle 1 on the tapered handle 204. The handle spring 101 will ensure that the handle 1 will not detach from the tapered handle 204 of the gear box 2 when riding.

[0019] The guide rod spring 302 uses elastic potential energy to pull the guide rod 301 downward, and cooperates with the handlebar to adjust the angle, and finally the guide rod 301 is inserted into the groove of the front fork frame limit block 401, so that it reaches a limit state.

[0020] When ready to fold, Figures 4 to 11 , stretch the handle 1 outward to compress the handle spring 101, making it enter a compressed state. At this time, the tapered hole 104 leaves the tapered handle 204, and the handle 1 is folded downward, driving the handle rod 105 and the sector gear 106 to rotate. The sector gear 106 drives the rack block 201 to rise. Since the gear box nut 202 fixes the guide rod 301 to the rack block 201, when the rack block 201 rises, the guide rod 301 rises with the rack block 201. When the guide rod 301 rises, the guide rod 301 leaves the groove of the front fork limit block 401 as shown Figure 8 and Figure 9 , release the limit state, then you can fold the handle and reach the folded state (such as Figure 6 ).

[0021] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0022] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A folding handlebar, characterized in that: It includes a handle, a gear box, a guide tube and a front fork frame; the handle includes a handle spring, a nylon guide sleeve, a handle nut, a tapered hole, a handle rod and a sector gear; the gear box includes a rack block, a rack block nut, a gear rod pin and a tapered handle; the guide tube includes a guide rod, a guide rod spring and a guide rod spring block; the front fork frame includes a front fork limit block and a front fork pin; The gear rod is formed by integrating a sector gear and a round steel rod, and is rotatably connected to the gear box via a pin on the sector gear hole; the tapered handle is provided on the outside of the gear box, and a tapered hole is formed on one end of the handle, and a tapered boss corresponding to the hole is provided on the gear box; the handle nut is sleeved on one end of the handle rod for fixing the nylon guide sleeve; the handle spring is provided between the handle and the handle rod, and is hinged to the nylon guide sleeve and the protrusion inside the handle; The rack block meshes with the left and right sector gears; the gearbox is provided with tapered bosses on the left and right sides to mate with the left and right tapered handles, with a hole in the middle of the gearbox; the gear rod nut is used to secure the nylon guide sleeve and preload the spring to store force; the guide tube is fixedly connected to the gearbox, and a guide rod is provided within the guide tube. The guide rod spring is hingedly mounted on the outside of the guide rod, and a guide rod spring stopper is provided at the bottom of the guide rod spring. The front fork frame and the front fork frame limit block are fixedly connected, and the front fork frame limit block is provided with a groove; the lower part of the guide tube is provided with a baffle corresponding to the front fork frame, and the baffle is provided with a groove, and the front fork pin shaft is rotatably connected with the groove on the guide tube baffle through the front fork pin shaft.

2. A folding handlebar as claimed in claim 1, characterized in that: The taper of the tapered hole and the tapered handle is 5°.

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