Directional quick-release kit for stem

Abstract

The invention belongs to the technical field of stem quick-release structures, and particularly relates to a stem directional quick-release suite which comprises a stem sleeve and a butt joint module which are buckled up and down, a guide clamping groove contracting inwards from bottom to top is formed in the bottom of the stem sleeve, and a guide top block is arranged at the position, corresponding to the guide clamping groove, of the upper end of the butt joint module. The guide clamping groove and the guide top block are each provided with a front half part and a rear half part which are different in shape, a vertical connecting rod is rotationally buckled to the center of the stem sleeve, quick-release external threads are arranged on the lower side of the butt joint position of the vertical connecting rod and the stem sleeve, and an internal thread groove is formed in the center of the butt joint module and corresponds to the vertical connecting rod. The handlebar stem quick-dismounting mechanism provided by the invention is labor-saving and quick in mounting and dismounting, simple in structure, light in weight and capable of automatically orienting, a user does not need to operate and align during butt joint, after locking, the handlebar stem sleeve and the butt joint module can be tightly matched and are not easy to loosen, the mounting and dismounting speed of a bicycle handlebar stem can be remarkably improved, and stable connection is ensured.

Description

Technical Field

[0001] This invention relates to the field of stem quick-release structure technology, and more specifically, to stem directional quick-release kits. Background Technology

[0002] The stem is one of the important components of two-wheeled vehicles such as bicycles, electric bikes, and scooters. It is installed between the handlebar assembly and the front fork assembly, and transmits the steering force applied by the rider to the front fork assembly and front wheel through the handlebars. It is the bridge between the handlebar assembly and the front fork assembly.

[0003] Currently, common stem structures on the market, such as the patent document with application number CN202110568148.5 entitled "Internal Cable Type Bicycle Stem", include a stem body, a clamp block installed at the front of the stem body, and a top cover installed at the top of the stem body. The stem body includes a stem body with a horizontally arranged front groove at the front and a vertically arranged fork rod hole at the rear. A stem cable groove is located in the middle of the front of the stem body, and a first support and a second support are formed on both sides of the stem cable groove. The clamp block includes a clamp block body with a rear groove at the rear. The upper rear edge of the clamp block body is fixedly connected to the first and second supports, and the lower rear edge of the clamp block body is fixedly connected to the lower front edge of the stem body. The top cover includes a top plate with outer side plates on both sides, a tongue plate at the front, and a rear side plate below the rear of the outer side plates. The tongue plate falls into the stem cable groove.

[0004] The aforementioned stem is bolted to the steerer tube via the fork stem hole, making it impossible to disassemble at will. Furthermore, each disassembly requires time-consuming and laborious adjustments to align the handlebars with the front wheel to prevent misalignment. Therefore, although the transverse handlebars occupy a significant amount of space on both sides, users generally do not remove the stem during transport.

[0005] In addition, although there are folding two-wheeled vehicles on the market with bendable and foldable stems, they are often more difficult to operate.

[0006] In view of this, it is necessary to develop a stem quick-release structure that is easy to install and remove and can automatically align with the front wheel orientation. Summary of the Invention

[0007] To enable quick and easy disassembly and directional installation of two-wheeled vehicle stems, facilitating user transportation and improving the storage flexibility of two-wheeled vehicle handlebars, a stem directional quick-release kit is provided.

[0008] The handlebar stem quick-release kit includes a handlebar stem sleeve and a docking module that snap together at the top and bottom. The bottom of the handlebar stem sleeve has a guide groove that tapers inward from bottom to top. The upper end of the docking module has a guide block corresponding to the guide groove. Both the guide groove and the guide block have front and rear halves with different shapes. A vertical connecting rod is rotatably connected to the center of the handlebar stem sleeve. The lower side of the joint between the vertical connecting rod and the handlebar stem sleeve has a quick-release external thread. The center of the docking module has an internal thread groove corresponding to the vertical connecting rod.

[0009] Furthermore, the guide slot protrudes upward from the guide top block.

[0010] Furthermore, the front and rear halves of the guide block are both conical surfaces that curve inward, and the centers of the two conical surfaces of the front and rear halves do not coincide.

[0011] Furthermore, a limiting cavity is provided on the inner side of the stand sleeve above the guide groove, and a tightening cylinder is lifted and sleeved in the limiting cavity, with the vertical connecting rod rotatably fastened to the center of the tightening cylinder.

[0012] Furthermore, the bottom of the tightening cylinder is provided with an inverted conical pressure head, the bottom of the limiting cavity is provided with an inverted conical pressing groove corresponding to the pressure head, and the top of the limiting cavity is provided with an anti-drop baffle with a central opening.

[0013] Furthermore, a concave annular groove is provided above the quick-release external thread of the vertical connecting rod, and the concave annular groove is rotatably engaged with the C-shaped retaining spring provided in the center of the handle sleeve.

[0014] Furthermore, a quick-release knob is installed on one end of the vertical connecting rod that protrudes upward from the handlebar sleeve. A protective gasket is provided between the handlebar sleeve and the quick-release knob, and a sealing gasket is also wrapped around the bottom of the quick-release knob.

[0015] Furthermore, the docking module includes a rudder tube base, which is fixedly sleeved on the outer side of the upper end of the rudder tube that is connected to the bottom wheel. A guide block is disposed on the top of the rudder tube base, and an internal thread groove is disposed at the top center of the rudder tube.

[0016] Furthermore, the docking module also includes a storage base, the top of which is integrally formed with a guide block and an internal threaded groove.

[0017] Furthermore, the front end of the stem sleeve is connected to a handlebar connecting rod, and the handlebar connecting rod and the stem sleeve are integrally formed.

[0018] The advantages of this invention are: 1. The threaded connection locking mechanism with guide blocks and other limiting mechanisms makes operation labor-saving and easy to install and disassemble, effectively improving the ease of installation and disassembly of the stem.

[0019] 2. The quick-release mechanism has a simple structure and is lightweight.

[0020] 3. The clamping cylinder pressed down by the linkage vertical connecting rod will press the vertical sleeve onto the docking module, resulting in a high degree of connection stability and preventing loosening.

[0021] 4. It has strong weather resistance and reliability, and the quick-release mechanism has a low chance of corrosion and jamming. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. 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 creative effort.

[0023] Figure 1 A side view of the structure when the vertical sleeve is connected to the rudder tube base; Figure 2 This is a vertical cross-sectional view of the vertical sleeve when it is connected to the rudder tube base; Figure 3 The bottom view of the upright sleeve structure; Figure 4 This is a structural diagram of the vertical sleeve and the rudder tube base; Figure 5 This is a structural diagram of the stand sleeve and the storage base; Figure 6 A schematic diagram of the structure for installing the vertical orientation quick-release kit on a vehicle.

[0024] Attached image labels: 1. Stem sleeve; 101. Guide groove; 102. Limiting cavity; 103. Pressing groove; 104. Anti-drop baffle; 105. Handlebar connecting rod; 201. Steerable base; 202. Steerable; 203. Storage base; 3. Guide top block; 4. Vertical connecting rod; 401. Quick-release external thread; 402. Internal concave annular groove; 5. Internal thread groove; 6. Tightening cylinder; 601. Pressure head; 7. C-shaped retaining ring; 8. Quick-release knob; 9. Protective gasket; 10. Sealing gasket. Detailed Implementation

[0025] To enable quick and easy disassembly and directional installation of two-wheeled vehicle stems, facilitating user transportation and improving the storage flexibility of two-wheeled vehicle handlebars, a stem directional quick-release kit is provided.

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] It should be noted that the terms such as “inner,” “middle,” and “one” used in this specification are merely for clarity of description and are not intended to limit the scope of the invention. Any changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as part of the scope of the invention, and this is hereby stated.

[0028] In the description of this invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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. Therefore, they should not be construed as limitations on the invention. 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 invention, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" 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 direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention through specific circumstances.

[0029] like Figures 1 to 6 As shown, this embodiment provides a quick-release stem orientation kit, including a stem sleeve 1 that is snapped together from top to bottom and a docking module. The bottom of the stem sleeve 1 is provided with a guide groove 101 that shrinks inward from bottom to top. The upper end of the docking module is provided with a guide top block 3 corresponding to the guide groove. The guide groove 101 and the guide top block 3 each have a front half and a rear half with different shapes. A vertical connecting rod 4 is rotatably snapped to the center of the stem sleeve 1. The lower side of the vertical connecting rod 4 where it docks with the stem sleeve 1 is provided with a quick-release external thread 401. The center of the docking module is provided with an internal thread groove 5 corresponding to the vertical connecting rod 4.

[0030] When using the equipment, users can quickly connect and disconnect the stem sleeve 1 and the docking module by rotating the vertical connecting rod 4, which is labor-saving and convenient. Moreover, because the guide slots 101 and the front and rear halves of the guide top block 3 have different shapes, the stem sleeve 1 and the docking module can only be connected in a fixed orientation, thus achieving automatic orientation and alignment of the stem while quickly connecting and disconnecting.

[0031] The guide slot 101 protrudes upward from the guide top block 3, so most of the docking module is wrapped in the handle sleeve 1, which provides strong connection stability and can prevent rainwater and other foreign objects from entering the internal structure of the equipment.

[0032] The front and rear halves of the guide block 3 are both inwardly curved conical surfaces, with their centers not coinciding. Because the front and rear sides of the guide block 3 have unequal shapes, the stem sleeve 1 can only be installed on the docking module in a fixed orientation, thus achieving more accurate automatic orientation during stem docking. The inwardly curved conical design of the guide block 3 allows for smoother docking of the stem sleeve 1 with the docking module, reducing collision wear. It also helps prevent the guide block 3 from being crushed if the stem sleeve 1 is installed in the wrong orientation and forcibly docked, resulting in stronger impact resistance and improved structural reliability. Furthermore, the conical design of the guide block 3 facilitates the servo tube base 201's enclosure and fixation of the centrally located servo tube 202.

[0033] A limiting cavity 102 is provided on the inner side of the handlebar sleeve 1 above the guide groove 101. A tightening cylinder 6 is fitted into the limiting cavity 102, and the vertical connecting rod 4 is rotatably fastened to the center of the tightening cylinder 6. In addition to pressing the handlebar sleeve 1 down in the internal thread groove 5 through the quick-release external thread 401, the tightening cylinder 6 is also provided to press down on the limiting cavity 102 in conjunction, so that the force is more even when the handlebar sleeve 1 is pressed and fixed on the docking module.

[0034] The bottom of the tightening cylinder 6 is provided with an inverted conical pressure head 601, and the bottom of the limiting cavity 102 is provided with an inverted conical pressing groove 103 corresponding to the pressure head 601. The top of the limiting cavity 102 is provided with a centrally located anti-drop plate 104. The design of the pressure head 601 and the pressing groove 103 allows the stem sleeve 1 to be gradually pressed as the quick-release external thread 401 gradually penetrates into the internal thread groove 5, improving the smoothness of assembly and disassembly. The anti-drop plate 104 can prevent the tightening cylinder 6 from coming off the stem sleeve 1 when the stem is disassembled.

[0035] The vertical connecting rod 4 has a concave annular groove 402 above its quick-release external thread 401. The concave annular groove 402 is rotatably engaged with a C-shaped retaining spring 7 located at the center of the stem sleeve 1. The design of the C-shaped retaining spring 7 in conjunction with the concave annular groove 402 allows the vertical connecting rod 4 to rotate smoothly without falling out of the stem sleeve 1, thereby improving structural reliability and preventing the vertical connecting rod 4 from being lost during stem disassembly.

[0036] The vertical connecting rod 4 protrudes upward from one end of the stem sleeve 1 and is fitted with a quick-release knob 8. A protective gasket 9 is provided between the stem sleeve 1 and the quick-release knob 8, and a sealing washer 10 is wrapped around the bottom of the quick-release knob 8. The design of the quick-release knob 8 allows users to quickly install and remove the stem by rotating the vertical connecting rod 4. The protective gasket 9, together with the sealing washer 10, reduces the impact and wear between the quick-release knob 8 and the stem sleeve 1, and prevents rainwater and other foreign objects from entering the equipment through the connection gap between the vertical connecting rod 4 and the stem sleeve 1, causing structural rust and corrosion, thus improving the weather resistance of the quick-release mechanism.

[0037] The docking module includes a steerer base 201, which is fixedly sleeved on the outer upper end of the steerer tube 202, which is connected to the wheel at the bottom. A guide block 3 is disposed on the top of the steerer base 201, and an internal threaded groove 5 is disposed at the center of the top of the steerer tube 202. The design of the internal threaded groove 5 being directly disposed on the steerer tube 202 simplifies the connection structure between the stem and the steerer tube. The top of the steerer tube 202 does not require a separate docking module, nor does it require consideration of whether the docking module and the steerer tube 202 are accurately aligned. This results in more reliable components and a lighter weight.

[0038] The docking module also includes a storage base 203, the top of which is integrally formed with a guide block 3 and an internal threaded groove 5. The storage base 203 is used to fix the stem when it is separated from the front wheel, facilitating storage, carrying, and maintenance. It is also worth mentioning that the storage base 203 can be installed on the side of the frame, allowing the stem to be folded and stored on the side of the frame after disassembly. Furthermore, the vehicle can be secured and transported by installing multiple stem sleeves 1 on the side of the transport bracket and then installing a corresponding number and position of storage bases 203 on the side of the frame.

[0039] The front end of the stem sleeve 1 is connected to a handlebar coupling rod 105, which is integrally formed with the stem sleeve 1. The integrally formed handlebar coupling rod 105 has high structural strength and facilitates lifting the entire stem when disassembling it. In addition, when assembling the vehicle, the riding geometry of the vehicle can be changed by using handlebar coupling rods 105 of different lengths and tilt angles, thereby adapting to the riding needs of different riders and providing high flexibility.

[0040] The above description is a further detailed explanation of the present invention in conjunction with specific preferred embodiments. It should not be construed that the specific implementation of the present invention is limited to these descriptions. All equivalent changes and modifications made within the scope of this application should still fall within the scope of the present invention.

Claims

1. A quick-release assembly for upright orientation, characterized in that, It includes a handlebar sleeve and a docking module that are connected at the top and bottom. The bottom of the handlebar sleeve is provided with a guide groove that shrinks inward from bottom to top. The upper end of the docking module is provided with a guide block corresponding to the guide groove. The guide groove and the guide block are both provided with front and rear halves of different shapes. A vertical connecting rod is rotatably connected to the center of the handlebar sleeve. The lower side of the vertical connecting rod and the handlebar sleeve docking point is provided with a quick-release external thread. The center of the docking module is provided with an internal thread groove corresponding to the vertical connecting rod.

2. The quick-release assembly for handlebar orientation according to claim 2, characterized in that, The guide slot protrudes upward from the guide top block.

3. The quick-release assembly for stem orientation according to claim 1, characterized in that, The front and rear halves of the guide block are both conical surfaces that curve inward, and the centers of the two conical surfaces in the front and rear halves do not coincide.

4. The quick-release assembly for handlebar orientation according to claim 1, characterized in that, The inner side of the stand sleeve is provided with a limiting cavity above the guide groove. A tightening cylinder is lifted and sleeved in the limiting cavity, and the vertical connecting rod is rotated and fastened to the center of the tightening cylinder.

5. The quick-release assembly for stem orientation according to claim 4, characterized in that, The bottom of the tightening cylinder is provided with an inverted conical pressure head, the bottom of the limiting cavity is provided with an inverted conical pressing groove corresponding to the pressure head, and the top of the limiting cavity is provided with an anti-drop baffle with a central opening.

6. The quick-release assembly for stem orientation according to claim 1, characterized in that, The vertical connecting rod has a concave annular groove above its quick-release external thread, which is rotatably engaged with a C-shaped retaining spring located at the center of the handle sleeve.

7. The quick-release assembly for stem orientation according to claim 1, characterized in that, The vertical connecting rod protrudes upward from one end of the handlebar sleeve and is equipped with a quick-release knob. A protective gasket is provided between the handlebar sleeve and the quick-release knob, and a sealing gasket is also wrapped around the bottom of the quick-release knob.

8. The quick-release assembly for stem orientation according to claim 1, characterized in that, The docking module includes a rudder tube base, which is fixedly sleeved on the outer side of the upper end of the rudder tube that is connected to the bottom wheel. A guide block is set on the top of the rudder tube base, and an internal thread groove is set at the center of the top of the rudder tube.

9. The quick-release assembly for stem orientation according to claim 8, characterized in that, The docking module also includes a storage base, the top of which is integrally formed with a guide block and an internal threaded groove.

10. The quick-release assembly for stem orientation according to claim 1, characterized in that, The front end of the stem sleeve is connected to a handlebar connecting rod, and the handlebar connecting rod and the stem sleeve are integrally formed.

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