Air pressure front fork capable of automatically adjusting damping

Abstract

The utility model relates to the technical field of air pressure front forks, in particular to an air pressure front fork capable of automatically adjusting damping, which comprises a sleeve, one side of the surface of the sleeve is connected with a fork bridge, and one side of the surface of the sleeve is provided with an adjusting mechanism. According to the air pressure front fork capable of automatically adjusting the damping, through the arrangement of the adjusting mechanism, when the damping of the air pressure front fork is automatically adjusted, firstly, a sensor for detecting the motion state of a bicycle is electrically connected with an electric push rod, then the sensor processes a detected signal, and the electric push rod is controlled to be started by judging the current riding condition; then one end of the electric push rod extends out and drives a first piston to move along the interior of a sleeve, at the moment, the first piston compresses air, then the compressed air enters the interior of the sleeve through a bent pipe, at the moment, the internal air pressure of the sleeve is increased, then when the bicycle goes down a slope, the resistance is increased when a front fork is pressed down, and the bicycle body cannot be suddenly pressed down; and a rider is effectively prevented from falling down.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic forks, in particular to a pneumatic fork with automatic damping adjustment. Background Technique

[0002] The existing fork components are composed of a fork crown, a shock absorber spring, a shock absorber rod, a piston slider, a shock absorber cylinder, etc. By filling gas into the shock absorber cylinder and the dual action of the shock absorber spring, the purpose of shock absorption is achieved. However, due to the influence of ambient temperature, professional cyclists will adjust the air pressure in the shock absorber cylinder according to the ambient temperature and the load. Therefore, there is a particular need for a pneumatic fork with automatic damping adjustment.

[0003] However, the existing pneumatic forks cannot automatically adjust the damping of the forks. When going downhill, etc., the rider may have too small damping of the fork, resulting in the front of the vehicle pressing down quickly and overly severely, so that the rider is prone to not react in time and an accident occurs. Content of the Utility Model

[0004] The purpose of the utility model is to provide a pneumatic fork with automatic damping adjustment to solve the problem in the above background technique that the existing pneumatic forks cannot automatically adjust the damping of the forks. When going downhill, etc., the rider may have too small damping of the fork, resulting in the front of the vehicle pressing down quickly and overly severely, so that the rider is prone to not react in time and an accident occurs.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A pneumatic fork with automatic damping adjustment, including a sleeve, one side of the surface of the sleeve is connected with a fork bridge, an adjustment mechanism is arranged on one side of the surface of the sleeve, and a buffer shock absorption mechanism is arranged on the surface of the sleeve;

[0006] The adjustment mechanism includes a sleeve, a bent pipe, an electric push rod, a first piston, a first annular groove and a first sealing ring. One side of the surface of the sleeve is connected with a sleeve, one end of the sleeve is hermetically connected with a bent pipe, an electric push rod is installed on the surface of the sleeve, a first piston is fitted inside the sleeve, a first annular groove is opened on the surface of the first piston, and a first sealing ring is sleeved on the surface of the first piston.

[0007] Preferably, the first sealing ring is sleeved inside the first annular groove, and two groups of first sealing rings are provided.

[0008] Preferably, one side of the surface of the first sealing ring is in contact with the inner wall of the sleeve, and two groups of first annular grooves are provided.

[0009] Preferably, one end of the electric push rod is connected with the first piston, and one end of the bent pipe is hermetically connected with the sleeve.

[0010] Preferably, the buffer and shock absorption mechanism includes a second piston, a second annular groove, a second sealing ring, a connecting rod, a spring and a shoulder fork. The second piston is fitted inside the sleeve. A second annular groove is formed on one side of the surface of the second piston. A second sealing ring is sleeved on one side of the surface of the second piston. A connecting rod is connected to one side of the surface of the second piston. One end of the connecting rod is connected with a spring through penetration. One end of the connecting rod is connected with a shoulder fork.

[0011] Preferably, the second sealing ring is fitted inside the second annular groove, and two groups of second sealing rings are provided.

[0012] Preferably, the second sealing ring is in contact with the inner wall of the sleeve, and two groups of springs are provided.

[0013] Compared with the prior art, the beneficial effect of the present utility model is as follows: for this pneumatic front fork with automatic damping adjustment, by electrically connecting the sensor for detecting the motion state of the bicycle to the electric push rod, then the sensor processes the detected signal and controls the start of the electric push rod by judging the current riding condition. At this time, one end of the electric push rod extends or contracts to increase or decrease the air pressure inside the front fork, so as to achieve the purpose of automatically increasing or decreasing the damping, and further enable the vehicle to cope with the buffering of different terrains, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic side view structure diagram of the present utility model;

[0015] Figure 2 It is a schematic exploded sectional view structure diagram of the adjustment mechanism of the present utility model;

[0016] Figure 3 It is a schematic exploded sectional view structure diagram of the buffer and shock absorption mechanism of the present utility model;

[0017] Figure 4 For the present utility model Figure 2 The enlarged structure diagram at position A;

[0018] Figure 5 For the present utility model Figure 3 The enlarged structure diagram at position B.

[0019] In the figure: 1. Sleeve; 2. Fork bridge; 3. Adjustment mechanism; 301. Sleeve pipe; 302. Bend pipe; 303. Electric push rod; 304. First piston; 305. First annular groove; 306. First sealing ring; 4. Buffer and shock absorption mechanism; 401. Second piston; 402. Second annular groove; 403. Second sealing ring; 404. Connecting rod; 405. Spring; 406. Shoulder fork. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1-5 , the present invention provides a technical solution: a pneumatic front fork with automatically adjustable damping, including a sleeve 1, a fork bridge 2 is connected to one side of the surface of the sleeve 1, an adjusting mechanism 3 is arranged on one side of the surface of the sleeve 1, and a buffer shock absorption mechanism 4 is arranged on the surface of the sleeve 1;

[0022] The adjusting mechanism 3 includes a sleeve 301, a bent pipe 302, an electric push rod 303, a first piston 304, a first annular groove 305 and a first sealing ring 306. A sleeve 301 is connected to one side of the surface of the sleeve 1. One end of the sleeve 301 is hermetically connected to a bent pipe 302. An electric push rod 303 is installed on the surface of the sleeve 301. A first piston 304 is fitted inside the sleeve 301. A first annular groove 305 is formed on the surface of the first piston 304. A first sealing ring 306 is sleeved on the surface of the first piston 304. When automatically adjusting the damping of the pneumatic front fork, first, a sensor for detecting the movement state of the bicycle is electrically connected to the electric push rod 303. Then, the sensor processes the detected signal and controls the start of the electric push rod 303 by judging the current riding condition. Subsequently, one end of the electric push rod 303 extends and drives the first piston 304 to move along the inside of the sleeve 301. At this time, the first piston 304 compresses the air. Subsequently, the compressed air enters the inside of the sleeve 1 through the bent pipe 302. At this time, the air pressure inside the sleeve 1 increases. During this process, the first sealing ring 306 in the first annular groove 305 is used to increase the seal between the first piston 304 and the sleeve 301 and prevent high-pressure gas from leaking. After that, when the bicycle is going downhill and the front fork is pressed down, the resistance increases and the vehicle body will not suddenly be pressed down, effectively preventing the rider from falling. When encountering bumps, one end of the electric push rod 303 drives the first piston 304 to reset. At this time, the internal resistance of the front fork decreases, and the bumps can be buffered quickly.

[0023] Furthermore, the first sealing ring 306 is sleeved inside the first annular groove 305, and there are two groups of the first sealing rings 306. Through the setting of the first sealing ring 306, during use, the first sealing ring 306 closely fits between the first piston 304 and the sleeve 301 to prevent high-pressure gas from leaking and ensure the accuracy and stability of air pressure adjustment.

[0024] Further, one side of the surface of the first sealing ring 306 is fitted to the inner wall of the sleeve 301. There are two sets of first annular grooves 305. Through the setting of the sleeve 301, during use, the sleeve 301 can provide an installation and accommodation space for the first piston 304, the electric push rod 303, etc.

[0025] Further, one end of the electric push rod 303 is connected to the first piston 304, and one end of the elbow pipe 302 is hermetically connected to the sleeve 1. Through the setting of the electric push rod 303, during use, the electric push rod 303 can control its telescopic movement according to the sensor signal, provide power for the movement of the first piston 304, thereby adjusting the air pressure in the sleeve 1 to change the damping of the front fork.

[0026] Further, the buffer shock absorption mechanism 4 includes a second piston 401, a second annular groove 402, a second sealing ring 403, a connecting rod 404, a spring 405 and a shoulder fork 406. The second piston 401 is fitted inside the sleeve 1. One side of the surface of the second piston 401 is provided with a second annular groove 402. One side of the surface of the second piston 401 is sleeved with a second sealing ring 403. One side of the surface of the second piston 401 is connected with a connecting rod 404. One end of the connecting rod 404 is connected with a spring 405 through penetration, and one end of the connecting rod 404 is connected with a shoulder fork 406. Through the setting of the second piston 401, the second annular groove 402, the second sealing ring 403, the connecting rod 404, the spring 405 and the shoulder fork 406, during use, when encountering bumps, first, the force generated by the bumps acts on the shoulder fork 406, and then the shoulder fork 406 drives the connecting rod 404 to move downward and continuously compress the spring 405. The spring 405 is compressed by the force, thereby absorbing a certain amount of force through the compression of the spring 405. At the same time, one end of the connecting rod 404 drives the second piston 401 to compress the high-pressure gas inside the sleeve 1, thereby achieving buffering of the bumps. The second sealing ring 403 inside the second annular groove 402 is used for sealing between the second piston 401 and the sleeve 1 to prevent leakage of high-pressure gas.

[0027] Further, the second sealing ring 403 is fitted inside the second annular groove 402, and there are two sets of second sealing rings 403. Through the setting of the second sealing ring 403, during use, the second sealing ring 403 is closely fitted between the second piston 401 and the sleeve 1, effectively preventing the leakage of high-pressure gas in the sleeve 1 and maintaining the stable shock absorption performance of the pneumatic fork.

[0028] Further, the second sealing ring 403 is fitted to the inner wall of the sleeve 1, and there are two sets of springs 405. Through the setting of the springs 405, during use, the springs 405 can be compressed when the shoulder fork 406 is subjected to bumping force, absorb a part of the energy, and play an auxiliary shock absorption role. When the bumping force weakens, the rebounding force of the springs 405 helps the shoulder fork 406 to return to its original position.

[0029] Working principle: First, when encountering bumps, the force generated during the bumps acts on the shoulder fork 406. Then, the shoulder fork 406 drives the connecting rod 404 to move downward under the force and continuously compresses the spring 405. The spring 405 is compressed under the force, so as to absorb a certain amount of force through the compression of the spring 405. At the same time, one end of the connecting rod 404 drives the second piston 401 to compress the high-pressure gas inside the sleeve 1, so as to achieve buffering for the bumps. The second sealing ring 403 inside the second annular groove 402 is used for sealing between the second piston 401 and the sleeve 1 to prevent the leakage of high-pressure gas. After that, when automatically adjusting the damping of the pneumatic fork, first, a sensor for detecting the movement state of the bicycle is electrically connected to the electric push rod 303. Then, the sensor processes the detected signal and controls the start of the electric push rod 303 by judging the current riding condition. Subsequently, one end of the electric push rod 303 extends and drives the first piston 304 to move inside the sleeve 301. At this time, the first piston 304 compresses the air, and then the compressed air enters the inside of the sleeve 1 through the elbow pipe 302. At this time, the air pressure inside the sleeve 1 increases. During this process, the first sealing ring 306 in the first annular groove 305 is used to increase the seal between the first piston 304 and the sleeve 301 to prevent the leakage of high-pressure gas. After that, when the bicycle is going downhill, the resistance increases when the front fork is pressed down, and the vehicle body will not suddenly press down, effectively preventing the cyclist from falling. When encountering bumps, one end of the electric push rod 303 drives the first piston 304 to reset. At this time, the internal resistance of the front fork decreases, and the buffering for the bumps can be quickly realized.

[0030] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air fork with automatically adjustable damping, comprising a sleeve (1), characterized in that: One side of the surface of the sleeve (1) is connected with a fork bridge (2), one side of the surface of the sleeve (1) is provided with an adjusting mechanism (3), and a buffer shock-absorbing mechanism (4) is arranged on the surface of the sleeve (1); The adjusting mechanism (3) includes a sleeve (301), a bent pipe (302), an electric push rod (303), a first piston (304), a first annular groove (305) and a first sealing ring (306). One side of the surface of the sleeve (1) is connected with the sleeve (301). One end of the sleeve (301) is hermetically connected with the bent pipe (302). The electric push rod (303) is installed on the surface of the sleeve (301). The first piston (304) is fitted inside the sleeve (301). The first annular groove (305) is formed on the surface of the first piston (304), and the first sealing ring (306) is sleeved on the surface of the first piston (304).

2. The pneumatic front fork capable of automatically adjusting damping according to claim 1, wherein: The first sealing ring (306) is sleeved inside the first annular groove (305), and there are two groups of the first sealing rings (306).

3. The pneumatic front fork capable of automatically adjusting damping according to claim 1, wherein: One side of the surface of the first sealing ring (306) is in fit with the inner wall of the sleeve (301), and there are two groups of the first annular grooves (305).

4. The pneumatic front fork with automatically adjustable damping according to claim 1, wherein: One end of the electric push rod (303) is connected with the first piston (304), and one end of the bent pipe (302) is hermetically connected with the sleeve (1).

5. The pneumatic front fork capable of automatically adjusting damping according to claim 1, characterized in that: The buffer shock-absorbing mechanism (4) includes a second piston (401), a second annular groove (402), a second sealing ring (403), a connecting rod (404), a spring (405) and a shoulder fork (406). The second piston (401) is fitted inside the sleeve (1). One side of the surface of the second piston (401) is provided with the second annular groove (402). One side of the surface of the second piston (401) is sleeved with the second sealing ring (403). One side of the surface of the second piston (401) is connected with the connecting rod (404). One end of the connecting rod (404) is connected with the spring (405) in a penetrating manner, and one end of the connecting rod (404) is connected with the shoulder fork (406).

6. The pneumatic front fork capable of automatically adjusting damping according to claim 5, characterized in that: The second sealing ring (403) is fitted inside the second annular groove (402), and there are two groups of the second sealing rings (403).

7. The pneumatic front fork with automatically adjustable damping according to claim 5, characterized in that: The second sealing ring (403) is in fit with the inner wall of the sleeve (1), and there are two groups of the springs (405).

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