Motorcycle damping mechanism

Abstract

The utility model belongs to the technical field of shock absorbers, and particularly relates to a motorcycle shock absorption mechanism which comprises an oil cylinder body, a main oil cavity is formed in the oil cylinder body, and the two ends of the oil cylinder body are provided with a lower installation base and a screw plug assembly which are used for sealing the main oil cavity. The air cylinder body is inserted from one end, with the screw plug assembly, of the oil cylinder body and is in sliding fit with the screw plug assembly, an air pressure cavity is formed in the air cylinder body, and a piston cover and an upper mounting seat for sealing the air pressure cavity are arranged at the two ends of the air cylinder body; the outer floating piston is arranged in the air cylinder body, and an auxiliary oil cavity is formed inwards by the outer floating piston; the piston cover is arranged at the end, inserted into the oil cylinder body, of the air cylinder body, the outer floating piston is located in the end, close to the piston cover, of the air cylinder body, and the auxiliary oil cavity faces the piston cover. And a floating hole communicated with the auxiliary oil cavity is formed in the piston cover.

Description

Technical Field

[0001] The utility model belongs to the technical field of shock absorbers, and in particular relates to a shock absorbing mechanism for a motorcycle. Background Art

[0002] The existing shock absorbers used for aircraft landing gear, automobiles, motorcycles, electric vehicles, ATV beach cars, and bicycle shock absorbers use a mechanical spring structure with linear spring characteristics that are not conducive to comfort and a large weight, which is not conducive to improving passenger comfort and reducing vehicle energy consumption; and the overall shock absorption effect of the existing shock absorbers is not ideal. Utility Model Content

[0003] The purpose of the utility model is to provide a motorcycle shock absorbing mechanism with a simple structure, ideal shock absorbing effect and easy maintenance in view of the above-mentioned technical problems.

[0004] In view of this, the utility model provides a motorcycle shock absorbing mechanism, comprising:

[0005] The oil cylinder body has a main oil chamber formed therein, and lower mounting seats and screw plug assemblies for closing the main oil chamber are arranged at both ends of the oil cylinder body;

[0006] The cylinder body is inserted from one end of the oil cylinder body with the screw plug assembly and slidably cooperates with the screw plug assembly, and a gas pressure cavity is formed in the cylinder body, and a piston cover and an upper mounting seat for closing the gas pressure cavity are arranged at both ends of the cylinder body;

[0007] An external floating piston is arranged in the cylinder body and has an auxiliary oil chamber formed inwardly of the external floating piston;

[0008] The piston cover is arranged on one end of the cylinder body inserted into the oil cylinder body, the outer floating piston is located in the cylinder body and in one end close to the piston cover, the auxiliary oil chamber is arranged toward the piston cover; and a floating hole connected with the auxiliary oil chamber is arranged on the piston cover.

[0009] In the above technical solution, further, the outer floating piston is slidably matched with the inner wall of the cylinder body, and a plurality of sealing rings are arranged on the side wall of the outer floating piston.

[0010] In the above technical solution, further, it also includes:

[0011] An inner floating assembly, which is arranged on the piston cover;

[0012] The internal floating components include:

[0013] The inner floating core is arranged on the piston cover and can slide relative to the auxiliary oil chamber.

[0014] In the above technical solution, further, the inner floating core comprises:

[0015] A floating rod, which is inserted on the piston cover and is slidably connected relative to the piston cover;

[0016] An inner floating plug is located in the auxiliary oil chamber and is connected to one end of the floating rod and is in close contact and sliding cooperation with the inner wall of the auxiliary oil chamber;

[0017] An end limit block, which is located at the end of the floating rod away from the piston cover;

[0018] The outer retaining spring is sleeved on the floating rod and the two ends of the outer retaining spring are respectively against the piston cover and the end limit block.

[0019] In the above technical solution, further, the floating core also includes:

[0020] The inner retaining spring is located in the auxiliary oil chamber and the two ends of the inner retaining spring are respectively against the inner floating plug and the bottom of the auxiliary oil chamber.

[0021] In the above technical solution, further, it also includes:

[0022] A positioning cover having a plurality of through holes is arranged in the air pressure cavity and on one side close to the upper mounting seat;

[0023] Positioning springs, which are arranged at both ends of the air pressure chamber and respectively abut against the outer floating piston and the positioning cover;

[0024] Buffer holes, a plurality of buffer holes are evenly distributed on the end surface of the outer floating piston away from the auxiliary oil chamber, and the buffer holes are communicated with the auxiliary oil chamber.

[0025] In the above technical solution, further, the floating core also includes:

[0026] A sealing groove, the sealing groove is arranged on the outer wall of the inner floating plug;

[0027] A sealing member is arranged in the sealing groove and is sealed with the inner wall of the auxiliary oil cavity.

[0028] In the above technical solution, further, the sealing element includes:

[0029] A sealing sheet, the sealing sheet is annular, and a plurality of sealing sheets are coaxially arranged and stacked inside and outside;

[0030] Sealing connection parts, wherein a plurality of sealing connection parts are connected to connect adjacent sealing sheets end to end;

[0031] The cross-sections of several sealing sheets in the sealing sheet have increasing widths from the inside to the outside and are stacked to form an isosceles trapezoidal shape, and the sealing groove is in an isosceles trapezoidal shape.

[0032] The beneficial effects of the utility model are:

[0033] 1. The setting of the external floating piston can ensure the overall shock absorption and buffering effect of the shock absorption mechanism;

[0034] 2. The setting of the internal floating plug can further improve the overall shock absorbing performance of the shock absorbing mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a structural schematic diagram of the utility model;

[0036] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0037] Figure 3 yes Figure 2 A partial enlarged view of point Ⅰ in the middle;

[0038] The markings in the figure are as follows: 1-cylinder body, 2-main oil chamber, 3-lower mounting seat, 4-screw plug assembly, 5-cylinder body, 6-air pressure chamber, 7-piston cover, 8-upper mounting seat, 9-external floating piston, 10-auxiliary oil chamber, 11-floating hole, 12-floating rod, 13-inner floating plug, 14-end limit block, 15-external retaining spring, 16-inner retaining spring, 17-positioning cover, 18-positioning spring, 19-buffer hole, 20-sealing sheet, 21-sealing connection. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0040] Embodiment 1:

[0041] This embodiment provides a motorcycle shock absorbing mechanism, comprising:

[0042] A cylinder body 1, wherein a main oil chamber 2 is formed in the cylinder body 1, and a lower mounting seat 3 and a screw plug assembly 4 for closing the main oil chamber 2 are arranged at both ends of the cylinder body 1;

[0043] The cylinder body 5 is inserted from one end of the oil cylinder body 1 with the screw plug assembly 4 and slidably cooperates with the screw plug assembly 4, and a gas pressure chamber 6 is formed in the cylinder body 5, and a piston cover 7 and an upper mounting seat 8 for closing the gas pressure chamber 6 are arranged at both ends of the cylinder body 5;

[0044] An external floating piston 9, which is disposed in the cylinder body 5 and has an auxiliary oil chamber 10 formed inwardly of the external floating piston 9;

[0045] The piston cover 7 is arranged on one end of the cylinder body 5 inserted into the oil cylinder body 1, the outer floating piston 9 is located in the cylinder body 5 and in one end close to the piston cover 7, the auxiliary oil chamber 10 is arranged toward the piston cover 7; and a floating hole 11 connected to the auxiliary oil chamber 10 is arranged on the piston cover 7.

[0046] In this embodiment, the main oil chamber 2 in the oil cylinder body 1 is filled with buffer oil, and an oil hole is provided on the lower mounting seat 3 to communicate with the main oil chamber 2, and a plug is provided on the oil hole; the cylinder body 5 is inserted on the cylinder body and slidably connected with the cylinder body. When the shock absorbing mechanism is subjected to pressure, the cylinder body 5 will move into the oil cylinder body 1, and under the action of the buffer oil in the oil cylinder body 1, a good buffering and shock absorbing effect is achieved; and nitrogen or air with a certain pressure is filled in the air pressure chamber 6 of the cylinder body 5, and through the setting of the outer floating piston 9, when the cylinder body 5 moves into the cylinder body to squeeze the buffer oil, a part of the buffer oil will enter the auxiliary oil chamber 10 of the outer floating piston 9 through the floating hole 11, thereby providing a certain storage space for the buffer oil; in order to ensure the stability of the air pressure in the cylinder body 5, a valve is provided on the upper mounting seat 8, so as to facilitate the maintenance of the air pressure in the cylinder body 5.

[0047] Embodiment 2:

[0048] This embodiment provides a shock absorbing mechanism for a motorcycle, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0049] The outer floating piston 9 is slidably matched with the inner wall of the cylinder body 5 , and a plurality of sealing rings are arranged on the side wall of the outer floating piston 9 .

[0050] In this embodiment, the outer floating piston 9 is slidably matched with the inner wall of the cylinder body 5 and the sealing ring is used to ensure that the outer floating piston 9 always remains sealed during the sliding process on the inner wall of the cylinder body 5, thereby preventing the buffer oil from entering the air pressure chamber 6.

[0051] Embodiment 3:

[0052] This embodiment provides a shock absorbing mechanism for a motorcycle, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0053] Also includes:

[0054] An inner floating assembly, which is arranged on the piston cover 7;

[0055] The internal floating components include:

[0056] The inner floating core is arranged on the piston cover 7 and can slide relative to the auxiliary oil chamber 10.

[0057] In this embodiment, when the cylinder body 5 moves into the oil cylinder body 1 to squeeze the buffer oil, the buffer oil will pass through the floating hole 11 and squeeze the inner floating core, so that the inner floating core moves into the auxiliary oil chamber 10, thereby achieving a better buffering and shock absorbing effect.

[0058] Embodiment 4:

[0059] This embodiment provides a shock absorbing mechanism for a motorcycle, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0060] The inner floating core includes:

[0061] A floating rod 12, the floating rod 12 is inserted on the piston cover 7 and is slidably connected relative to the piston cover 7;

[0062] An inner floating plug 13, which is located in the auxiliary oil chamber 10 and is connected to one end of the floating rod 12 and is in close contact and sliding cooperation with the inner wall of the auxiliary oil chamber 10;

[0063] An end stopper 14, which is located at one end of the floating rod 12 away from the piston cover 7;

[0064] The outer retaining spring 15 is sleeved on the floating rod 12 and the two ends of the outer retaining spring 15 are respectively against the piston cover 7 and the end limit block 14.

[0065] In this embodiment, a rod hole is formed in the middle of the piston cover 7, and the floating rod 12 is slidably set on the rod hole, and the inner floating plug 13 is used to cooperate with the inner wall of the auxiliary oil chamber 10, so as to ensure that the buffer oil does not enter the other side of the auxiliary oil chamber 10; and the setting of the end limit block 14 can limit the maximum position of the movement of the floating rod 12, which is more conducive to the movement of the floating rod 12.

[0066] Embodiment 5:

[0067] This embodiment provides a shock absorbing mechanism for a motorcycle, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0068] The floating core also includes:

[0069] The inner retaining spring 16 is located in the auxiliary oil chamber 10 and its two ends are respectively against the inner floating plug 13 and the bottom of the auxiliary oil chamber 10 .

[0070] In this embodiment, the provision of the inner retaining spring 16 enables the inner floating plug 13 to be better reset after entering the auxiliary oil chamber 10 .

[0071] Embodiment 6:

[0072] This embodiment provides a shock absorbing mechanism for a motorcycle, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0073] Also includes:

[0074] A positioning cover 17 having a plurality of through holes is provided in the air pressure chamber 6 and on one side of the upper mounting seat 8;

[0075] Positioning spring 18, the positioning spring 18 is arranged at both ends of the air pressure chamber 6 and respectively abuts against the outer floating piston 9 and the positioning cover 17;

[0076] Buffer holes 19 , a plurality of buffer holes 19 are evenly distributed on the end surface of the outer floating piston 9 away from the auxiliary oil chamber 10 , and the buffer holes 19 are communicated with the auxiliary oil chamber 10 .

[0077] In this embodiment, the setting of the positioning cover 17 and the positioning spring 18 can provide good elastic support for the outer floating piston 9 and facilitate the resetting of the outer floating piston 9; and the setting of the buffer hole 19 enables the air pressure in the air pressure chamber 6 to better resist the inner floating piston when the inner floating plug 13 moves to the bottom of the auxiliary oil chamber 10, thereby better ensuring the shock absorption and buffering effects.

[0078] Embodiment 7:

[0079] This embodiment provides a shock absorbing mechanism for a motorcycle, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0080] The floating core also includes:

[0081] A sealing groove, which is arranged on the outer wall of the inner floating plug 13;

[0082] The sealing member is arranged in the sealing groove and is sealed with the inner wall of the auxiliary oil chamber 10 .

[0083] In this embodiment, the provision of the sealing member can improve the sealing effect of the contact between the inner floating plug 13 and the auxiliary oil chamber 10, thereby better improving the shock absorbing effect of the shock absorbing mechanism.

[0084] Embodiment 8:

[0085] This embodiment provides a shock absorbing mechanism for a motorcycle, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0086] Seals include:

[0087] The sealing sheet 20 is annular, and a plurality of sealing sheets 20 are coaxially arranged and stacked inside and outside;

[0088] Sealing connection parts 21, a plurality of sealing connection parts 21 are connected to connect adjacent sealing sheets 20 end to end;

[0089] The cross-sections of several sealing sheets 20 in the sealing sheets 20 have increasing widths from the inside to the outside and are stacked to form an isosceles trapezoidal shape, and the sealing groove is in an isosceles trapezoidal shape.

[0090] In this embodiment, a plurality of sealing sheets 20 are arranged in sequence so as to ensure that the seal has a good sealing effect, and the sealing connection portion 21 can connect the sealing sheets 20 into a whole, thereby ensuring the connection stability and sealing effect between adjacent sealing sheets 20; and the seal as a whole is in the shape of an isosceles trapezoid, thereby ensuring both the stability of the seal structure and the overall sealing effect of the seal.

[0091] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A motorcycle shock absorbing mechanism, characterized in that: include: An oil cylinder body (1), wherein a main oil chamber (2) is formed in the oil cylinder body (1), and a lower mounting seat (3) and a screw plug assembly (4) for closing the main oil chamber (2) are provided at both ends of the oil cylinder body (1); A cylinder body (5), wherein the cylinder body (5) is inserted from one end of the oil cylinder body (1) with the screw plug assembly (4) and slidably cooperates with the screw plug assembly (4), and a gas pressure chamber (6) is formed in the cylinder body (5), and a piston cover (7) and an upper mounting seat (8) for closing the gas pressure chamber (6) are arranged at both ends of the cylinder body (5); An external floating piston (9), wherein the external floating piston (9) is arranged in the cylinder body (5), and a secondary oil chamber (10) is formed inwardly of the external floating piston (9); The piston cover (7) is arranged on one end of the cylinder body (5) inserted into the oil cylinder body (1), the outer floating piston (9) is located in the cylinder body (5) and in one end close to the piston cover (7), and the auxiliary oil chamber (10) is arranged toward the piston cover (7); and a floating hole (11) connected to the auxiliary oil chamber (10) is arranged on the piston cover (7).

2. A motorcycle shock absorbing mechanism according to claim 1, characterized in that: The outer floating piston (9) is in sliding cooperation with the inner wall of the cylinder body (5).

3. A motorcycle shock absorbing mechanism according to claim 2, characterized in that: Also includes: An internal floating assembly, wherein the internal floating assembly is arranged on the piston cover (7); The inner floating assembly includes: An inner floating core is arranged on the piston cover (7) and can slide relative to the auxiliary oil chamber (10).

4. A motorcycle shock absorbing mechanism according to claim 3, characterized in that: The inner floating core comprises: A floating rod (12), wherein the floating rod (12) is inserted into the piston cover (7) and is slidably connected relative to the piston cover (7); An inner floating plug (13), the inner floating plug (13) is located in the auxiliary oil chamber (10), connected to one end of the floating rod (12) and in close contact and sliding cooperation with the inner wall of the auxiliary oil chamber (10); An end stop block (14), wherein the end stop block (14) is located at an end of the floating rod (12) away from the piston cover (7); An external retaining spring (15) is sleeved on the floating rod (12) and has two ends respectively abutting against the piston cover (7) and the end limit block (14).

5. A motorcycle shock absorbing mechanism according to claim 4, characterized in that: The floating core also includes: An inner retaining spring (16) is located in the auxiliary oil chamber (10) and has two ends respectively abutting against the inner floating plug (13) and the bottom of the auxiliary oil chamber (10).

6. A motorcycle shock absorbing mechanism according to claim 5, characterized in that: Also includes: A positioning cover (17) having a plurality of through holes is arranged in the air pressure chamber (6) and on one side close to the upper mounting seat (8); A positioning spring (18), wherein the positioning spring (18) is arranged in the air pressure chamber (6) at two ends thereof and respectively abuts against the outer floating piston (9) and the positioning cover (17); Buffer holes (19), a plurality of the buffer holes (19) are evenly distributed on the end surface of the outer floating piston (9) away from the auxiliary oil chamber (10), and the buffer holes (19) are connected to the auxiliary oil chamber (10).

7. A shock absorbing mechanism for motorcycle according to claim 5, characterized in that: The floating core also includes: A sealing groove, wherein the sealing groove is arranged on the outer wall of the inner floating plug (13); A sealing member is arranged in the sealing groove and is sealingly matched with the inner wall of the auxiliary oil chamber (10).

8. A motorcycle shock absorbing mechanism according to claim 7, characterized in that: The sealing element comprises: A sealing sheet (20), wherein the sealing sheet (20) is annular, and a plurality of sealing sheets (20) are coaxially arranged and stacked inside and outside; A sealing connection part (21), wherein a plurality of sealing connection parts (21) are connected to connect adjacent sealing sheets (20) end to end; The cross-sections of several sealing sheets (20) in the sealing sheets (20) increase in width from the inside to the outside and are stacked to form an isosceles trapezoidal shape, and the sealing groove is in the shape of an isosceles trapezoidal shape.

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