Inverted shock absorber with protective structure for motorcycle

Abstract

The inverted shock absorber comprises a hydraulic push rod, a shock absorption spring, a sealing cover and an outer side pipe, the shock absorption spring is arranged above the outer portion of the hydraulic push rod, and the outer side wall of the hydraulic push rod is wrapped with the sealing cover. And a protection buffer structure is fixedly connected to the middle position of the outer side wall of the hydraulic push rod. Hydraulic oil is filtered by arranging the filtering structure, when the hydraulic push rod downwards extrudes the hydraulic oil through the sealing push block, the hydraulic oil penetrates through the filtering net to enable turbid parts in the hydraulic oil to be filtered, and pure hydraulic oil is damped through the compression valve. The connecting ring shakes along with hydraulic oil due to extrusion of the sealing push block, the connecting ring cannot turn over or shake violently due to the fact that the top end of the connecting ring is fixedly provided with the multiple sets of blocking pieces, and therefore the situation that the damping effect is poor due to the fact that the compression valve is blocked after the hydraulic oil is turbid is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of shock absorbers, in particular to an inverted shock absorber for motorcycles with a protective structure. Background Art

[0002] Motorcycles are a common means of transportation. They are fast and suitable for driving in most places. Therefore, they are loved by teenagers. In order to make the motorcycles have a good response to ground bumps during driving, corresponding devices that can alleviate vibrations will be installed on the motorcycles, so special inverted shock absorbers will be used.

[0003] However, when the inverted shock absorbers currently available on the market are used, since motorcycles are very prone to bumps during driving, the shock absorbers are used more frequently, and the hydraulic oil inside the shock absorbers will become turbid after long-term use, which greatly reduces the shock absorption effect. Therefore, an inverted shock absorber for motorcycles with a protective structure is developed to solve the above problem. Utility Model Content

[0004] The utility model aims to provide an inverted shock absorber for motorcycles with a protective structure to solve the problem in the background art that hydraulic oil may become turbid during long-term use, resulting in a decrease in shock absorption effect.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an inverted shock absorber for motorcycle with a protective structure, comprising a hydraulic push rod, a shock absorbing spring, a sealing cover and an outer tube, wherein a shock absorbing spring is arranged above the outer side of the hydraulic push rod, the outer side wall of the hydraulic push rod is wrapped with a sealing cover, the bottom end of the sealing cover is threadedly connected to the outer tube, the inner side of the outer tube is fixedly connected to the inner side oil pipe, the bottom end of the hydraulic push rod is fixedly connected to a sealing push block, the bottom end of the inner side oil pipe is fixedly installed with a compression valve, and the bottom end of the outer tube is fixedly connected to the inner side oil pipe. A connecting head is fixedly connected, a filtering structure is fixedly connected to the lower part of the inner wall of the inner oil pipe, the filtering structure includes a protective ring, a connecting ring, a filter screen and a baffle, the outer wall of the protective ring is fixedly connected to the lower part of the inner wall of the inner oil pipe, a connecting ring is provided below the protective ring, the inner wall of the connecting ring is fixedly connected to the filter screen, the top of the connecting ring is fixedly connected to the baffle, the bottom end of the outer side wall of the hydraulic push rod is fixedly connected to a sealing reinforcement structure, and a protective buffer structure is fixedly connected to the middle position of the outer side wall of the hydraulic push rod.

[0006] Preferably, the cross-sectional area of ​​the outer diameter of the connecting ring is smaller than the cross-sectional area of ​​the inner diameter of the inner oil pipe, and the baffles are distributed at equal intervals on the top of the connecting ring.

[0007] Preferably, the sealing reinforcement structure includes a first thread groove, a first thread sleeve, a sealing ring and a sealing sleeve, the inner wall of the first thread groove is fixedly connected to the middle position of the outer wall of the hydraulic push rod, the outer wall of the first thread groove is threadedly connected to the first thread sleeve, the outer wall of the first thread sleeve is fixedly connected to the sealing ring, and the sealing sleeve is installed on the top of the first thread sleeve.

[0008] Preferably, a threaded structure is formed between the first thread groove and the interior of the first threaded sleeve, and the sealing rings are symmetrically distributed about a horizontal center line of the first threaded sleeve.

[0009] Preferably, the protective buffer structure includes a second thread groove, a second thread sleeve, a buffer pad and a retaining ring, the inner wall of the second thread groove is fixedly connected to the upper part of the outer wall of the hydraulic push rod, the outer wall of the second thread groove is threadedly connected to the second thread sleeve, the top of the second thread sleeve is fixedly connected to the buffer pad, and a retaining ring is arranged below the second thread sleeve.

[0010] Preferably, the buffer pad and the second threaded sleeve are in the same vertical plane, and the retaining ring and the hydraulic push rod are perpendicular to each other.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the inverted shock absorber for motorcycles with a protective structure not only realizes the filtration of hydraulic oil, preventing the hydraulic oil from being turbid and causing the compression valve to be blocked, thereby resulting in poor shock absorption effect, but also realizes the enhancement of the sealing of the hydraulic oil, preventing the long-term wear of the sealing push block from causing the shock absorption failure of the shock absorber, and protecting the shock absorber, preventing the hydraulic push rod from being damaged due to excessive extension and contraction;

[0012] (1) The filtering structure is provided to filter the hydraulic oil. When the hydraulic push rod squeezes the hydraulic oil downward through the sealing push block, the hydraulic oil passes through the filter screen to filter out the turbid part of the hydraulic oil, while the pure hydraulic oil is damped by the compression valve. The squeezing of the sealing push block causes the connecting ring to shake with the hydraulic oil. Since multiple sets of baffles are fixed on the top of the connecting ring, the connecting ring cannot flip or shake violently, thereby preventing the turbid hydraulic oil from clogging the compression valve and causing poor shock absorption effect.

[0013] (2) The sealing performance of the hydraulic oil is enhanced by providing a sealing reinforcement structure. Since a sealing ring is installed on the outer wall of the first threaded sleeve, the gap between the outer wall of the first threaded sleeve and the inner wall of the inner oil pipe is blocked, and a sealing sleeve is installed on the top of the first threaded sleeve to block the gap between the inner wall of the first threaded sleeve and the hydraulic push rod to prevent leakage of the hydraulic oil, thereby preventing the sealing push block from being worn for a long time and causing the shock absorber to fail to function properly;

[0014] (3) The protection of the shock absorber is achieved by providing a protective buffer structure. A second threaded sleeve is installed on the outer wall of the hydraulic push rod, and a buffer pad is fixed above the second threaded sleeve. When the rebound force is too large, the buffer pad will collide with the sealing cover. Since the buffer pad itself is relatively soft and elastic, the impact force is reduced, thereby preventing the hydraulic push rod from being damaged due to excessive extension and contraction. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model when viewed from above;

[0017] Figure 3 This is a schematic diagram of the front cross-sectional structure of the filtering structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the front cross-sectional structure of the sealing reinforcement structure of the utility model;

[0019] Figure 5 It is a schematic diagram of the front cross-sectional structure of the protective structure of the utility model.

[0020] In the figure: 1. hydraulic push rod; 2. shock-absorbing spring; 3. sealing cover; 4. outer tube; 5. inner oil pipe; 6. sealing push block; 7. compression valve; 8. connector; 9. filtering structure; 901. protective ring; 902. connecting ring; 903. filter screen; 904. baffle; 10. sealing reinforcement structure; 1001. first thread groove; 1002. first thread sleeve; 1003. sealing ring; 1004. sealing sleeve; 11. protective buffer structure; 1101. second thread groove; 1102. second thread sleeve; 1103. buffer pad; 1104. baffle ring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4The utility model provides an embodiment: an inverted shock absorber for motorcycle with a protective structure, comprising a hydraulic push rod 1, a shock absorbing spring 2, a sealing cover 3 and an outer tube 4, a shock absorbing spring 2 is arranged above the outside of the hydraulic push rod 1, the outer wall of the hydraulic push rod 1 is wrapped with a sealing cover 3, the bottom end of the sealing cover 3 is threadedly connected with the outer tube 4, the inner part of the outer tube 4 is fixedly connected with an inner oil pipe 5, the bottom end of the hydraulic push rod 1 is fixedly connected with a sealing push block 6, the bottom end of the inner oil pipe 5 is fixedly installed with a compression valve 7, the bottom end of the outer tube 4 is fixedly connected with a connector 8, the lower part of the inner wall of the inner oil pipe 5 is fixedly connected with a filtering structure 9, the bottom end of the outer wall of the hydraulic push rod 1 is fixedly connected with a sealing reinforcement structure 10, and the middle position of the outer wall of the hydraulic push rod 1 is fixedly connected with a protective buffer structure 11;

[0023] A filter structure 9 is fixedly connected to the lower part of the inner wall of the inner oil pipe 5. The filter structure 9 includes a protective ring 901, a connecting ring 902, a filter screen 903 and a baffle 904. The outer wall of the protective ring 901 is fixedly connected to the lower part of the inner wall of the inner oil pipe 5. A connecting ring 902 is arranged below the protective ring 901. The inner wall of the connecting ring 902 is fixedly connected to the filter screen 903. The top of the connecting ring 902 is fixedly connected to the baffle 904. The cross-sectional area of ​​the outer diameter of the connecting ring 902 is smaller than the cross-sectional area of ​​the inner diameter of the inner oil pipe 5. The baffles 904 are evenly spaced and distributed at the top of the connecting ring 902.

[0024] Specifically, Figure 1 , Figure 2 and Figure 3 As shown, when the mechanism is used, first, a connecting ring 902 is provided below the protective ring 901, and a filter screen 903 is fixedly connected to the inner wall of the connecting ring 902. When the hydraulic push rod 1 squeezes the hydraulic oil downward through the sealing push block 6, the hydraulic oil passes through the filter screen 903 so that the turbid part of the hydraulic oil is filtered, and the pure hydraulic oil is damped through the compression valve 7. Due to the squeezing of the sealing push block 6, the connecting ring 902 shakes with the hydraulic oil. Since multiple groups of baffles 904 are fixed on the top of the connecting ring 902, the connecting ring 902 cannot flip or shake violently, thereby preventing the compression valve 7 from being blocked after the hydraulic oil becomes turbid, thereby causing poor shock absorption effect;

[0025] The bottom end of the outer wall of the hydraulic push rod 1 is fixedly connected with a sealing reinforcement structure 10, and the sealing reinforcement structure 10 includes a first thread groove 1001, a first thread sleeve 1002, a sealing ring 1003 and a sealing sleeve 1004. The inner wall of the first thread groove 1001 is fixedly connected to the middle position of the outer wall of the hydraulic push rod 1, the outer wall of the first thread groove 1001 is threadedly connected with the first thread sleeve 1002, the outer wall of the first thread sleeve 1002 is fixedly connected with the sealing ring 1003, and the top of the first thread sleeve 1002 is installed with the sealing sleeve 1004. The first thread groove 1001 and the inside of the first thread sleeve 1002 are threaded structures, and the sealing rings 1003 are symmetrically distributed about the horizontal center line of the first thread sleeve 1002.

[0026] Specifically, Figure 1 and Figure 4 As shown, when the mechanism is used, first, the outer wall of the first threaded sleeve 1002 is fixedly connected with a sealing ring 1003, and the top of the first threaded sleeve 1002 is installed with a sealing sleeve 1004. Since the sealing ring 1003 is installed on the outer wall of the first threaded sleeve 1002, the gap between the outer wall of the first threaded sleeve 1002 and the inner wall of the inner oil pipe 5 is blocked, and the sealing sleeve 1004 is installed on the top of the first threaded sleeve 1002, so that the gap between the inner wall of the first threaded sleeve 1002 and the hydraulic push rod 1 is blocked to prevent the leakage of hydraulic oil, thereby preventing the long-term wear of the sealing push block 6 from causing the shock absorber to fail to absorb shock;

[0027] A protective buffer structure 11 is fixedly connected at the middle position of the outer wall of the hydraulic push rod 1. The protective buffer structure 11 includes a second thread groove 1101, a second thread sleeve 1102, a buffer pad 1103 and a retaining ring 1104. The inner wall of the second thread groove 1101 is fixedly connected to the upper part of the outer wall of the hydraulic push rod 1. The outer wall of the second thread groove 1101 is threadedly connected with the second thread sleeve 1102. The top of the second thread sleeve 1102 is fixedly connected with the buffer pad 1103. A retaining ring 1104 is arranged below the second thread sleeve 1102. The buffer pad 1103 and the second thread sleeve 1102 are in the same vertical plane. The retaining ring 1104 and the hydraulic push rod 1 are perpendicular to each other.

[0028] Specifically, Figure 1 and Figure 5 As shown, when the mechanism is used, first, the inner wall of the second threaded groove 1101 is fixedly connected to the upper part of the outer wall of the hydraulic push rod 1, the second threaded sleeve 1102 is installed on the outer wall of the hydraulic push rod 1, and the buffer pad 1103 is fixed on the upper part of the second threaded sleeve 1102. When the rebound force is too large, the buffer pad 1103 will collide with the sealing cover 3. Since the buffer pad 1103 itself is relatively soft and elastic, the impact force is reduced, thereby preventing the hydraulic push rod 1 from being damaged due to excessive extension and contraction.

[0029] Working principle: When the utility model is in use, first, when the shock absorber is in normal use, external vibration causes the hydraulic push rod 1 to push the sealing push block 6 downward, so that the hydraulic oil flows to the outer tube 4 through the compression valve 7, thereby achieving vibration damping. Then, the hydraulic push rod 1 is affected by the internal pressure of the outer tube 4 and rebounds, so that the hydraulic push rod 1 rises. In this process, if the rebound force is too large, the sealing push block 6 will rise too much, and there is a risk of hitting the sealing cover 3. Therefore, a second threaded sleeve 1102 is installed on the outer wall of the hydraulic push rod 1, and a buffer pad 1103 is fixed above the second threaded sleeve 1102. When the rebound force is too large, the buffer pad 1103 will collide with the sealing cover 3. Since the buffer pad 1103 itself is relatively soft and elastic, the impact force is reduced;

[0030] Secondly, when the shock absorber is used for a long time, the sealing push block 6 will be worn due to the squeezing of hydraulic oil. When the sealing push block 6 is damaged due to long-term use, the shock absorption effect may fail. Therefore, the first threaded sleeve 1002 is installed at a position below the outer wall of the hydraulic push rod 1 near the top of the sealing push block 6, and the sealing ring 1003 is symmetrically installed on the outer wall of the first threaded sleeve 1002 to block the gap between the outer wall of the first threaded sleeve 1002 and the inner wall of the inner oil pipe 5, and the sealing sleeve 1004 is installed on the top of the first threaded sleeve 1002 to block the gap between the inner wall of the first threaded sleeve 1002 and the hydraulic push rod 1 to prevent hydraulic oil leakage. When the sealing push block 6 is worn, the hydraulic oil flows into the top of the sealing push block 6, and is blocked by the sealing reinforcement structure 10 at this time, so that the bottom of the inner oil pipe 5 is still sealed, and the sealing reinforcement structure 10 can temporarily serve as the sealing push block 6 when the hydraulic push rod 1 is pushed downward;

[0031] Finally, when the shock absorber is used for a long time, the hydraulic oil inside the inner oil pipe 5 will become turbid, making it impossible for the hydraulic oil to pass through the compression valve 7 normally, resulting in a decrease in the shock absorption effect. Therefore, a filtering structure 9 is installed at the lower part of the inner oil pipe 5. When the hydraulic push rod 1 squeezes the hydraulic oil downward through the sealing push block 6, the hydraulic oil passes through the filter screen 903 so that the turbid part of the hydraulic oil is filtered, while the pure hydraulic oil passes through the compression valve 7 for damping. Due to the squeezing of the sealing push block 6, the connecting ring 902 shakes with the hydraulic oil. Since multiple sets of baffles 904 are fixed on the top of the connecting ring 902, the connecting ring 902 cannot flip over or shake violently, and finally the motorcycle shock absorption work of the inverted shock absorber for motorcycles with a protective structure is completed.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An inverted shock absorber for motorcycle with a protective structure, comprising a hydraulic push rod (1), a shock absorbing spring (2), a sealing cover (3) and an outer tube (4), characterized in that: A damping spring (2) is arranged above the outside of the hydraulic push rod (1); the outer wall of the hydraulic push rod (1) is wrapped with a sealing cover (3); the bottom end of the sealing cover (3) is threadedly connected to an outer tube (4); the inside of the outer tube (4) is fixedly connected to an inner oil tube (5); the bottom end of the hydraulic push rod (1) is fixedly connected to a sealing push block (6); the bottom end of the inner oil tube (5) is fixedly installed with a compression valve (7); the bottom end of the outer tube (4) is fixedly connected to a connector (8); the bottom of the inner wall of the inner oil tube (5) is fixedly connected to a filtering structure (9); the filtering structure (9) includes a protective ring (901), a connecting ring (902), a filter screen (903) and a baffle (904), the outer wall of the protective ring (901) is fixedly connected to the lower part of the inner wall of the inner oil pipe (5), a connecting ring (902) is arranged below the protective ring (901), the inner wall of the connecting ring (902) is fixedly connected to the filter screen (903), the top of the connecting ring (902) is fixedly connected to the baffle (904), the bottom end of the outer wall of the hydraulic push rod (1) is fixedly connected to the sealing reinforcement structure (10), and the middle position of the outer wall of the hydraulic push rod (1) is fixedly connected to the protective buffer structure (11).

2. The inverted shock absorber for motorcycle with a protective structure according to claim 1, characterized in that: The cross-sectional area of ​​the outer diameter of the connecting ring (902) is smaller than the cross-sectional area of ​​the inner diameter of the inner oil pipe (5), and the baffles (904) are distributed at equal intervals on the top of the connecting ring (902).

3. The inverted shock absorber for motorcycle with a protective structure according to claim 1, characterized in that: The sealing reinforcement structure (10) comprises a first thread groove (1001), a first thread sleeve (1002), a sealing ring (1003) and a sealing sleeve (1004); the inner side wall of the first thread groove (1001) is fixedly connected to the middle position of the outer side wall of the hydraulic push rod (1); the outer side wall of the first thread groove (1001) is threadedly connected to the first thread sleeve (1002); the outer side wall of the first thread sleeve (1002) is fixedly connected to the sealing ring (1003); and the sealing sleeve (1004) is installed at the top end of the first thread sleeve (1002).

4. The inverted shock absorber for motorcycle with a protective structure according to claim 3, characterized in that: A threaded structure is formed between the first thread groove (1001) and the interior of the first thread sleeve (1002), and the sealing rings (1003) are symmetrically distributed about the horizontal center line of the first thread sleeve (1002).

5. The inverted shock absorber for motorcycle with a protective structure according to claim 1, characterized in that: The protective buffer structure (11) comprises a second thread groove (1101), a second thread sleeve (1102), a buffer pad (1103) and a retaining ring (1104); the inner wall of the second thread groove (1101) is fixedly connected to the upper part of the outer wall of the hydraulic push rod (1); the outer wall of the second thread groove (1101) is threadedly connected to the second thread sleeve (1102); the top end of the second thread sleeve (1102) is fixedly connected to the buffer pad (1103); and a retaining ring (1104) is arranged below the second thread sleeve (1102).

6. The inverted shock absorber for motorcycle with a protective structure according to claim 5, characterized in that: The buffer pad (1103) and the second threaded sleeve (1102) are located in the same vertical plane, and the retaining ring (1104) and the hydraulic push rod (1) are perpendicular to each other.

Images