Damping stem

Abstract

In the actual use process, the first component is installed on a front fork tube of a bicycle, then a handlebar tube of the bicycle is installed on the second component, and installation of the damping handlebar stem can be completed. In the bicycle riding process, rigid connection between a front fork pipe and a handlebar pipe of a traditional bicycle can be converted into flexible connection through a double-crank mechanism composed of the two connecting pieces, the first component and the second component, so that the fork pipe and the handlebar pipe can be adjusted in a staggered mode; shock generated during rebounding and impact from the road surface are relieved by moving the handlebar pipe in the height direction, and in the operation process of the double-crank mechanism, the two ends of the damping mechanism can move along with the handlebar pipe and achieve the damping effect at the same time, so that the buffering force is further improved, operation of the double-crank mechanism is prevented from being hindered, and the service life of the double-crank mechanism is prolonged. The shock absorption process is too rigid and unnatural; in general, by means of the damping handlebar stem, the damping process between the front fork pipe and the handlebar pipe can be smoother and more natural.

Description

TECHNICAL FIELD

[0001] The utility model relates to traffic tool accessory technical field, concretely is a shock absorbing handlebar. BACKGROUND

[0002] Handlebar, usually as the part of bicycle or electric vehicle uses, commonly known as bicycle stem, is used for connecting the front fork pipe and handlebar pipe of bicycle, directly controls the driving direction of bicycle, in addition, the height and length of handlebar also directly affect the flexibility of bicycle control.

[0003] Most handlebars on the market usually only have the effect of connecting the front fork pipe and handlebar pipe, and the connection is rigid connection, but in the actual riding process, since the effect of the shock absorber, such as front fork spring shock absorber, oil shock absorber, gas shock absorber and multi-link shock absorber, is limited, therefore, the impact generated when the road is bumpy cannot be completely absorbed, which is easy to cause the user's arm to vibrate, leading to the arm to easily numb, the control force of handlebar and the comfort of riding are poor, in order to further reduce the shock, the handlebar that can reduce the shock appears on the market.

[0004] The Chinese patent with patent No. CN202321597334.2 provides a bicycle shock absorbing handlebar structure and bicycle, the bicycle shock absorbing handlebar structure is converted into flexible connection by forming double crank mechanism, so that the rigid connection before handlebar pipe and front fork pipe can be adjusted, the shock and impact from the road when moving in the height direction of handlebar pipe is reduced, at the same time, the shock absorbing mechanism is installed between the connecting piece and the first component, which can further weaken and absorb the vibration generated when the impact from the road, improve the buffering force;However, the shock absorbing mechanism in the above-mentioned patent is directly installed between the connecting piece and the first component, which leads to the double crank structure in the running process, the shock absorbing mechanism cannot move simultaneously, so that the shock absorbing process is not smooth enough. UTILITY MODEL CONTENTS

[0005] (I) technical problem solved

[0006] In order to solve the above problems, the utility model provides a shock absorbing handlebar, which can make the shock absorbing process between the front fork pipe and the handlebar pipe more smooth and natural.

[0007] (II) technical scheme

[0008] In order to achieve the above purpose, the utility model provides the following technical scheme:

[0009] A shock absorbing handlebar is used for connecting the front fork pipe and the handlebar pipe, comprising:

[0010] The first component is detachably installed on the front fork pipe;

[0011] a second member for connecting the handle tube;

[0012] two connecting members, each end of the connecting members being rotatably connected with the first member and the second member respectively, the two connecting members, the first member and the second member together forming a double crank mechanism;

[0013] a damping mechanism, one end of the damping mechanism being movably connected with the first member, and the opposite end being rotatably connected with the second member.

[0014] Preferably, the first member is provided with an extension, the extension is provided with a first threaded hole, a screw cap is engaged in the first threaded hole, the second member is rotatably connected with an adapter, one end of the damping mechanism is detachably connected with the adapter, and the opposite end abuts against the screw cap, the size of the first threaded hole is larger than the size of the corresponding section of the damping mechanism, so that the damping mechanism can be taken out through the first threaded hole.

[0015] Preferably, the adapter is provided with a second threaded hole, the damping mechanism is provided with a head with external threads corresponding to the second threaded hole, and the head of the damping mechanism engages the second threaded hole.

[0016] Preferably, the extension is located outside the two connecting members, the connecting member close to the extension is provided with a through slot, and the damping mechanism passes through the through slot to abut against the screw cap, so as to increase the stroke range of the damping mechanism.

[0017] Preferably, the side of the screw cap facing the damping mechanism is provided with a buffer pad.

[0018] Preferably, the damping mechanism is selected from a gas pressure rod.

[0019] Preferably, the stroke range of the damping mechanism is between 10-30mm.

[0020] Preferably, the load capacity of the damping mechanism is between 100-200N.

[0021] Preferably, both ends of the connecting member are provided with two connecting ears, the first member and the second member are respectively provided with two connecting rods, and both ends of any connecting rod are rotatably connected with two connecting ears on the same end of the connecting member.

[0022] Preferably, the materials of the first member, the second member, the connecting member, the connecting ear and the connecting rod are selected from at least one of titanium alloy, aluminum alloy, stainless steel and brass.

[0023] (Three) beneficial effects

[0024] Compared with the prior art, the beneficial effects of this utility model are:

[0025] In practical use, the first component is installed on the bicycle's fork tube, and the handlebar tube is then installed on the second component to complete the installation of the shock-absorbing stem. During cycling, the double-crank mechanism, consisting of the two connecting parts, the first component, and the second component, transforms the rigid connection between the traditional bicycle fork tube and handlebar tube into a flexible connection. This allows the fork tube and handlebar tube to be adjusted in a staggered manner, reducing the oscillation during rebound and the impact from the road surface by moving the handlebar tube in the height direction. During the operation of the double-crank mechanism, the two ends of the shock-absorbing mechanism can also move accordingly and simultaneously play a shock-absorbing role, further weakening and absorbing the vibration generated by the impact from the road surface, improving the buffering force, and enhancing the stability of the shock-absorbing stem structure. This is beneficial for steering control, improves the user's riding comfort, and avoids hindering the operation of the double-crank mechanism, which would cause the shock absorption process to be too stiff and unnatural. In summary, by using this shock-absorbing stem, the shock absorption process between the fork tube and handlebar tube becomes smoother and more natural. Attached Figure Description

[0026] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0027] Figure 1 A perspective view of the shock-absorbing handlebar of this utility model is shown;

[0028] Figure 2 It shows Figure 1 A three-dimensional view of the shock absorber stand from another angle;

[0029] Figure 3 It shows Figure 1 Front view of the shock absorber handlebar;

[0030] Figure 4 It shows Figure 1 A schematic diagram of the exploded structure of the shock absorber stand;

[0031] Figure 5 It shows Figure 1 A schematic diagram illustrating the shape changes of the shock absorber during the shock absorption process;

[0032] Figure 6 It shows Figure 1 A 3D view of the middle shock absorber stem after connecting the fork tube and handlebar tube;

[0033] Figure 7 It shows Figure 1Figure 6 is a perspective view of the first member in the middle;

[0034] Figure 8 Figure 7 is a perspective view of the second member in the middle; Figure 1

[0035] Figure 9 Figure 8 is a perspective view of the rotating cap in the middle; Figure 1

[0036] Figure 10 Figure 9 is a perspective view of the lower connecting piece in the middle; Figure 1

[0037] Figure 11 Figure 10 is a perspective view of the upper connecting piece in the middle; Figure 1

[0038] Figure 12 Figure 11 is a perspective view of the shock-absorbing mechanism in the middle; Figure 1

[0039] Figure 13 Figure 12 is a perspective view of the adapter in the middle. Figure 1

[0040] Figure 1 is a front fork tube; Figure 2 is a handlebar tube; Figure 3 is a first member; Figure 31 is a connecting ring structure; Figure 32 is a fourth threaded hole; Figure 33 is a first cup screw; Figure 34 is an extension; Figure 35 is a first threaded hole; Figure 36 is a rotating cap; Figure 37 is a buffer pad; Figure 4 is a second member; Figure 41 is a half-open ring structure; Figure 42 is a second cup screw; Figure 5 is a connecting piece; Figure 5a is an upper connecting piece; Figure 5b is a lower connecting piece; Figure 51 is a through slot; Figure 52 is a connecting lug; Figure 6 is a shock-absorbing mechanism; Figure 61 is a head; Figure 7 is an adapter; Figure 71 is a second threaded hole; Figure 8 is a connecting rod; Figure 9 is a first through hole; Figure 10 is a second through hole; Figure 11 is a third threaded hole; Figure 12 is a screw; and Figure 13 is a copper sleeve. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0042] Reference is made to the accompanying drawings of Figure 1 , the accompanying drawings of Figure 2 , and the accompanying drawings of Figure 6 ​​​​​​This utility model discloses a shock-absorbing stem for connecting the fork tube 1 and the handlebar tube 2. It includes a first component 3, a second component 4, two connecting parts 5, and a shock-absorbing mechanism 6. The first component 3 is detachably installed on the fork tube 1. The second component 4 is used to connect the handlebar tube 2. The two ends of the connecting parts 5 are rotatably connected to the first component 3 and the second component 4, respectively. The two connecting parts 5, the first component 3, and the second component 4 together form a double crank mechanism. One end of the shock-absorbing mechanism 6 is movably connected to the first component 3, and the other end is rotatably connected to the second component 4.

[0043] In practical use, the first component 3 is installed on the bicycle's fork tube 1, and the bicycle's handlebar tube 2 is installed on the second component 4 to complete the installation of the shock-absorbing stem. During bicycle riding, the double crank mechanism composed of the two connecting parts 5, the first component 3, and the second component 4 can transform the rigid connection between the traditional bicycle fork tube 1 and handlebar tube 2 into a flexible connection, allowing the fork tube 1 and handlebar tube 2 to be adjusted in a staggered manner. By allowing the handlebar tube 2 to move in the height direction, the oscillation during rebound and the impact from the road surface are reduced. During the operation of the double crank mechanism composed of the two connecting parts 5, the first component 3, and the second component 4, the two ends of the shock-absorbing mechanism 6 can also move accordingly and simultaneously play a shock-absorbing role, further weakening and absorbing the vibration generated by the impact from the road surface, improving the buffering force, and improving the stability of the shock-absorbing stem structure. This is beneficial for steering control, improves the user's riding comfort, and avoids hindering the operation of the double crank mechanism, which would cause the shock absorption process to be too stiff and unnatural. In summary, by using this shock-absorbing stem, the shock absorption process between the fork tube 1 and the handlebar tube 2 can be made smoother and more natural.

[0044] Furthermore, because this application employs a shock-absorbing stem with a double crank mechanism, its strength is more guaranteed compared to other types of stems. Conventional steering suspension systems experience stem angle changes during use, affecting the rider's control of the handlebars. In contrast, the shock-absorbing stem with a double crank mechanism in this application provides a shock-absorbing effect similar to an "isolation system" during use. (See attached document.) Figure 3 and attached Figure 5 Through the rotational movement of the four-bar linkage in the double crank mechanism, the handlebar tube 2 is in a near-translational state relative to the ground. This structure allows the rider's hand and grip posture and angle to remain essentially unchanged during riding, ensuring that the rider's control and steering of the handlebar tube 2 are not affected. It greatly reduces the high-frequency vibrations felt through the handlebar tube 2 due to uneven terrain, and does not change the rider's riding posture during emergency braking, making it safer. In addition, the change in the position of the handlebar tube 2 relative to the ground in the forward and backward and vertical directions is also very small, thus making the shock absorption effect of the shock-absorbing stem better and basically not affecting the rider's control of the handlebar tube 2.

[0045] Referring to the drawings Figure 4 and the drawings Figure 8 It should also be noted that the first member 3 is provided with an open-loop connecting ring structure 31 to facilitate the installation of the first member 3 on the front fork tube 1, and the connecting ring structure 31 is provided with two fourth threaded holes 32 in opposite directions at the open loop to facilitate the screwing of two first cup head screws 33 from opposite directions, thereby tightly holding the first member 3 on the front fork tube 1; Referring to the drawings Figure 4 and the drawings Figure 10 The second member 4 includes two half-open-loop structures 41 designed separately, which are threadedly connected and composed of a circular holding structure by providing four second cup head screws 42, and the handlebar tube 2 is placed between the two half-open-loop structures 41, and the handlebar tube 2 can be tightly held on the second member 4 by the second cup head screws 42.

[0046] Referring to the drawings Figure 4 , the drawings Figure 7 and the drawings Figure 8 The rotating connection and the movable connection have various modes and structures, and in order to facilitate the description, one of the design modes is introduced in the embodiment, specifically, the first member 3 is provided with an extension 34, the extension 34 is provided with a first threaded hole 35, a screw cap 36 is engaged in the first threaded hole 35, the second member 4 is rotatably connected with an adapter 7, one end of a damping mechanism 6 is detachably connected with the adapter 7, and the opposite end abuts against the screw cap 36, and the size of the first threaded hole 35 is greater than the size of the corresponding section of the damping mechanism 6.

[0047] Through the design of the above structure, in the operation process of the double-crank mechanism composed of the two connecting members 5, the first member 3 and the second member 4, one end of the damping mechanism 6 can rotate under the action of the adapter 7, and the opposite end can also move because it only abuts against the screw cap 36, so it will not affect the smooth operation of each rotating part of the above-mentioned double-crank mechanism. Since the damping mechanism 6 and the adapter 7 are detachably connected, the screw cap 36 is threadedly connected with the first threaded hole 35, and the size of the first threaded hole 35 is greater than the size of the corresponding section of the damping mechanism 6, so after the screw cap 36 is unscrewed from the first threaded hole 35, the damping mechanism 6 is detached from the adapter 7, and the damping mechanism 6 can be taken out from the first threaded hole 35, so that the damping mechanism 6 can be conveniently cleaned, maintained or replaced.

[0048] Referring to the drawings Figure 7 , the drawings Figure 12 and the drawings Figure 13 The detachable connection has various modes and structures, and one of them is introduced in the embodiment, specifically, the adapter 7 is provided with a second threaded hole 71, the damping mechanism 6 is provided with a head 61 with external threads corresponding to the second threaded hole 71, and the head 61 of the damping mechanism 6 engages the second threaded hole 71.

[0049] Through the design of the above structure, after the screw cap 36 is unscrewed from the first threaded hole 35, the damping mechanism 6 can also be unscrewed from the second threaded hole 71, and the disassembly mode is the same, which is convenient for disassembly; in addition, the threaded connection mode also has the advantages of simple structure, reliable connection, convenient disassembly, etc., and the damping direction and the threaded direction are basically perpendicular, so that the screw cap 36 and the damping mechanism 6 are not easy to loosen.

[0050] Referring to the accompanying drawings Figure 3 and the accompanying drawings Figure 11 The space between the two connecting pieces 5 is limited, and if the damping mechanism 6 is arranged between the two connecting pieces 5, the stroke range of the damping mechanism 6 is obviously smaller. In order to solve the above problem, the following design is made in the embodiment. Specifically, the extension part 34 is located outside the two connecting pieces 5, a through slot 51 is arranged on the connecting piece 5 close to the extension part 34, and the damping mechanism 6 passes through the through slot 51 and abuts against the screw cap 36, so as to increase the stroke range of the damping mechanism 6.

[0051] Through the design of the above structure, the length and stroke range of the damping mechanism 6 are not limited to the space between the two connecting pieces 5, and the length and stroke range of the damping mechanism 6 can be set according to actual needs; further, in order to facilitate the description, after the first member 3 is connected to the substantially vertical front fork tube 1 and the second member 4 is connected to the substantially horizontal handlebar tube 2, the two connecting pieces 5 can be divided into an upper connecting piece 5a located above and a lower connecting piece 5b located below, and the through slot 51 is arranged on the lower connecting piece 5b, so that the upper connecting piece 5a can shield the damping mechanism 6 from above, so as to protect the damping mechanism 6 to a certain extent, and make the whole damping stand look more simple and regular.

[0052] Referring to the accompanying drawings Figure 7 - the accompanying drawings Figure 9 In order to avoid hard contact between the damping mechanism 6 and the screw cap 36, which may cause parts to be damaged by knocking, the following design is made in the embodiment. Specifically, the side of the screw cap 36 facing the damping mechanism 6 is provided with a buffer pad 37.

[0053] Through the design of the above structure, not only can the hard contact between the damping mechanism 6 and the screw cap 36 be avoided, but also the buffering capacity of the damping stand can be further improved, and the damping stand can also play a role in sound reduction; it should be noted that the shape, material and other parameters of the buffer pad 37 are not limited in the present application, and can be flexibly selected according to actual needs, such as rubber or silicone.

[0054] The common shock-absorbing structure on the market usually uses a spring structure, but the spring shock absorber has weak resistance to environmental pollution and low-temperature changes, has a short service life, and uses the deformation mode of elongation or shortening for shock absorption, and the shock absorption process is not smooth enough. In order to solve the above problems, the following design is made in the embodiment, specifically, the shock-absorbing mechanism 6 selects a gas pressure rod.

[0055] Through the design of the above structure, the shock-absorbing effect of the shock-absorbing vertical rod is relatively smooth compared with the traditional spring shock-absorbing vertical rod. Specifically, the gas pressure rod is also called gas spring, gas support, angle adjuster, damper, etc. The gas pressure rod uses pressure difference to absorb vibration. When external vibration acts on the gas pressure rod, the piston in the gas pressure rod moves in the gas cylinder, thereby compressing or releasing the gas therein. This process generates damping force, thereby reducing the transmission of vibration. Due to the compressibility of gas, the gas pressure shock absorption has better elasticity and stability compared with the spring shock absorption mode, and the shock absorption is more smooth and natural, which is suitable for frequent ups and downs on the road.

[0056] Based on the above scheme, since the shock-absorbing mechanism 6 is detachable and replaceable, and the shock-absorbing mechanism 6 selects a gas pressure rod, a plurality of types of gas pressure rods can be prepared, and different types of gas pressure rods are distinguished in terms of material, load column diameter, piston rod diameter, effective working stroke, rated carrying capacity, operating pressure, temperature resistance and other parameters, so that the rider can flexibly select the shock-absorbing mechanism 6 for installation and use according to the influence of environmental temperature, surrounding terrain, vehicle type, body weight and other factors.

[0057] In order to avoid the situation that the shock-absorbing mechanism 6 has a too small stroke range and poor shock-absorbing effect, or a too large stroke range and the shock-absorbing mechanism 6 cannot be effectively utilized, the following design is made in the embodiment, specifically, the stroke range of the shock-absorbing mechanism 6 is between 10-30mm; further, the stroke range of the shock-absorbing mechanism 6 is preferably 20mm, at this time, the inclination angle of the shock-absorbing mechanism 6 relative to the vertical direction in the natural state is 7°, which is more comfortable to operate.

[0058] Further, the following design is made in the embodiment, specifically, the load capacity of the shock-absorbing mechanism 6 is between 100-200N.

[0059] Based on the above scheme, when the load capacity of the shock-absorbing mechanism 6 is 160N, the recommended weight range of the rider is 45-75KG; when the load capacity of the shock-absorbing mechanism 6 is 190N, the recommended weight range of the rider is 75-110KG.

[0060] Further, the 22-50 tube body-160N air pressure rod is selected and dynamic detection is carried out under the conditions that the deformation test speed is 200 mm / min and the starting force F0 is 184.8 N, and the minimum stretching force F1 of the air pressure rod is 150.2 N, the maximum stretching force F2 is 158.8 N, the minimum compression force F3 is 177.8 N, the maximum compression force F4 is 182.8 N, the nominal force Fa is 164 N, the friction force Ft is 13.8 N, and the elastic force ratio is 1.041%; the 22-50 tube body-190N air pressure rod is selected and dynamic detection is carried out under the conditions that the deformation test speed is 200 mm / min and the starting force F0 is 184.8 N, and the minimum stretching force F1 of the air pressure rod is 169.4 N, the maximum stretching force F2 is 177.4 N, the minimum compression force F3 is 197.6 N, the maximum compression force F4 is 206.8 N, the nominal force Fa is 183.5 N, the friction force Ft is 14.1 N, and the elastic force ratio is 1.047%; based on the above detection data, after the air pressure rod is sampled and fatigue test is carried out for 10,000 times in view of the force performance and the durability performance, the following detection conclusions are obtained: 1. The minimum stretching force F1 and the nominal force Fa of the air pressure rod are higher than those before the test, which is mainly caused by the decrease of the dynamic friction force of the air pressure rod after the durability test, and there may also be a small amount of influence caused by the test temperature deviation; 2. A small amount of liquid seeps out during the detection process, but the force performance test result shows that the sealing of the product is not obviously abnormal; in general, the product after the test is not obviously abnormal and can be normally used.

[0061] Referring to the accompanying drawings Figure 1 , the accompanying drawings Figure 4 , and the accompanying drawings Figure 11In order to make the overall shock handle more compact and stable, the following design is made in the embodiment. Specifically, the two ends of the connecting piece 5 are provided with two connecting ears 52, the first member 3 and the second member 4 are respectively provided with two connecting rods 8, and the two ends of any connecting rod 8 are rotatably connected with the two connecting ears 52 at the same end of the same connecting piece 5. Specifically, the two ends of the upper connecting piece 5a and the lower connecting piece 5b are provided with two connecting ears 52, the connecting ears 52 on the upper connecting piece 5a are arranged on the side of the upper connecting piece 5a facing the lower connecting piece 5b, and the connecting ears 5 on the lower connecting piece 5b are arranged on the side of the lower connecting piece 5b facing the upper connecting piece 5a, so that the overall shock handle is more compact. The connecting ear 52 is provided with a first through hole 9, the first member 3, the second member 4 and the adapter 7 are respectively provided with a second through hole 10 corresponding to the first through hole 9, and the connecting rod 8 passes through the corresponding first through hole 9 and the second through hole 10, so that the connecting piece 5 and the first member 3 or the second member 4 or the adapter 7 are rotatably connected. The first member 3, the second member 4 and the adapter 7 are respectively provided with a third threaded hole 11 corresponding to the connecting rod 8, and the connecting rod 8 is abutted and clamped by the added screw 12, so as to prevent the connecting rod 8 from being separated from the corresponding first through hole 9 and the second through hole 10. Further, the connecting part of the connecting rod 8 and the first through hole 9 is also provided with a copper sleeve 13 with a substantially T-shaped cross section, so as to avoid direct contact between the connecting piece 5 and the first member 3, the connecting piece 5 and the second member 4, and the connecting piece 5 and the connecting rod 8, thereby improving the service life.

[0062] It should be noted that the material of each component is not limited in the present application, and can be flexibly selected according to actual needs. Therefore, the following design is made in the embodiment. Specifically, the materials of the first member 3, the second member 4, the connecting piece 5, the connecting ear 52 and the connecting rod 8 are selected from at least one of titanium alloy, aluminum alloy, stainless steel and brass.

[0063] Based on the above scheme, in the embodiment, the first member 3, the second member 4, the rotating cap 36, the connecting piece 5 and the adapter 7 are made of 6061 aluminum alloy material, which has excellent processing performance, good corrosion resistance, high toughness, no deformation after processing, easy coloring film, excellent oxidation effect and other excellent characteristics. The first cup head screw 33, the second cup head screw 42 and the screw 12 are made of 304 stainless steel material, which has good corrosion resistance, good processing performance, good strength and wear resistance. The connecting rod 8 is made of titanium alloy material, which has the advantages of high strength, good corrosion resistance, excellent biocompatibility and high heat resistance. The copper sleeve 13 is made of brass material, which has the advantages of strong corrosion resistance, good electrical conductivity, high toughness, good processability and beautiful color.

[0064] It is to be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments consistent with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components and / or combinations thereof, but do not preclude the presence or addition of one or more other features, steps, operations, devices, components and / or combinations thereof.

[0065] In addition, it should be pointed out that the use of the terms "first", "second" and the like in connection with various elements is merely intended for convenience of distinguishing between the respective elements, and does not in any way limit the scope of protection of the present application, unless otherwise explicitly stated.

[0066] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A shock-absorbing stem for connecting the fork tube and the handlebar tube, characterized in that, include: A first component, which is detachably mounted on the fork tube; A second component, the second component being used to connect the handlebar tube; Two connecting members, the two ends of which are rotatably connected to the first component and the second component respectively, together forming a double crank mechanism; A shock-absorbing mechanism, one end of which is movably connected to the first component, and the other end of which is rotatably connected to the second component.

2. The shock-absorbing stem according to claim 1, characterized in that, The first component has an extension portion, and the extension portion has a first threaded hole. A screw cap engages in the first threaded hole. An adapter is rotatably connected to the second component. One end of the shock-absorbing mechanism is detachably connected to the adapter, and the other end abuts against the screw cap. The size of the first threaded hole is larger than the size of the corresponding cross section of the shock-absorbing mechanism, so that the shock-absorbing mechanism can be removed through the first threaded hole.

3. A shock-absorbing stem according to claim 2, characterized in that, The adapter is provided with a second threaded hole, and the shock-absorbing mechanism is provided with a head having an external thread corresponding to the second threaded hole, the head of the shock-absorbing mechanism engaging with the second threaded hole.

4. A shock-absorbing stem according to claim 2, characterized in that, The extension is located outside the two connectors. A through groove is provided on the connector near the extension. The shock-absorbing mechanism passes through the through groove and abuts against the screw cap to increase the travel range of the shock-absorbing mechanism.

5. A shock-absorbing stem according to claim 2, characterized in that, The screw cap has a cushioning pad on the side facing the shock absorption mechanism.

6. A shock-absorbing stem according to claim 1, characterized in that, The shock absorption mechanism uses a pneumatic rod.

7. A shock-absorbing stem according to claim 6, characterized in that, The stroke range of the shock absorption mechanism is between 10-30mm.

8. A shock-absorbing stem according to claim 6, characterized in that, The load capacity of the shock absorption mechanism is between 100-200N.

9. A shock-absorbing stem according to any one of claims 1-8, characterized in that, The connector has two connecting lugs at both ends, and two connecting rods are respectively installed on the first component and the second component. The two ends of any one of the connecting rods are rotatably connected to the two connecting lugs at the same end of the same connector.

10. A shock-absorbing stem according to claim 9, characterized in that, The first component, the second component, the connector, the connecting lug, and the connecting rod are all made of at least one of titanium alloy, aluminum alloy, stainless steel, and brass.

Images