CN213974350U - Speed changer of electric bicycle - Google Patents
Speed changer of electric bicycle Download PDFInfo
- Publication number
- CN213974350U CN213974350U CN202022353555.8U CN202022353555U CN213974350U CN 213974350 U CN213974350 U CN 213974350U CN 202022353555 U CN202022353555 U CN 202022353555U CN 213974350 U CN213974350 U CN 213974350U
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- China
- Prior art keywords
- gear
- main body
- shell
- main part
- piston
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 16
- 239000010959 steel Substances 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 230000001050 lubricating effect Effects 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 26
- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract 2
- 239000010687 lubricating oil Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
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Abstract
The utility model discloses an electric bicycle derailleur, including main part, installation foot, first gear and second gear, the even fixedly connected with installation foot in the outside of main part, the one end of main part is provided with seal structure, one side on the inside top of main part is provided with lubricating structure, lubricating structure is including piston, bleeder vent, slide bar, reset spring, dead lever and casing, one side on the inside top of casing fixed connection in main part, the top of casing evenly is provided with the bleeder vent, the bottom swing joint of casing has the slide bar, and the top fixedly connected with piston of slide bar. The utility model discloses an even swing joint in the inside of first spout and second spout has the steel ball, and the steel ball can rotate often at first gear revolve to reduce the coefficient of friction of first gear, make first gear revolve more smoothly, avoid appearing the dead condition of card, the transmission that carries on that simultaneously can be better.
Description
Technical Field
The utility model relates to an electric bicycle technical field specifically is an electric bicycle derailleur.
Background
The speed changer is also called a gearbox, is a device for changing the rotating speed and the torque of an engine, is arranged on various machines provided with engines, can change the transmission ratio of an output shaft and an input shaft, generally adopts gears for internal transmission, and also adopts a planetary gear transmission:
traditional electric bicycle derailleur, because the lubricating oil of being not convenient for add, if need be to the inside lubricating oil that adds of lubricating oil, just need open the derailleur, it is very troublesome to operate, unable better use derailleur.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an electric bicycle derailleur to provide the problem of the interpolation lubricating oil of being not convenient for in solving above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: an electric bicycle speed changer comprises a main body, a mounting foot, a first gear and a second gear, wherein the mounting foot is uniformly and fixedly connected to the outer side of the main body, a sealing structure is arranged at one end of the main body, a lubricating structure is arranged at one side of the top end in the main body, the lubricating structure comprises a piston, air holes, a sliding rod, a reset spring, a fixed rod and a shell, the shell is fixedly connected to one side of the top end in the main body, the air holes are uniformly formed in the top end of the shell, the bottom end of the shell is movably connected with the sliding rod, the top end of the sliding rod is fixedly connected with the piston, the bottom end of the sliding rod is movably hinged with the fixed rod, one side of the top end of the fixed rod is fixedly connected with the reset spring, the top end of the reset spring is fixedly connected with the bottom end of the shell, the fixed rod is movably hinged with the main body, and one side of the inner part of the main body is movably connected with the first gear, the inside swing joint of first gear has the axle sleeve, the outside of axle sleeve is provided with the second spout, the inside of first gear is provided with first spout, even swing joint has the steel ball between first spout and the second spout, the inside opposite side swing joint of main part has the second gear.
Preferably, the outer diameter of the piston is smaller than the inner diameter of the shell, and the piston and the shell form a sliding connection.
Preferably, the hinge position of the fixed rod is one third, and a rotating structure is formed between the fixed rod and the main body.
Preferably, the sealing structure comprises a clamping groove, a sealing ring, a cavity and an air bag, the clamping groove is arranged at one end of the main body, the sealing ring is movably connected inside the clamping groove, the air bag is arranged inside the sealing ring, and the cavity is uniformly and fixedly connected inside the air bag.
Preferably, the cavities are arranged in a diamond shape, and the cavities are arranged in the air bag at equal intervals.
Preferably, a sliding structure is formed among the steel balls, the first sliding groove and the second sliding groove, and the steel balls are arranged in the first sliding groove and the second sliding groove at equal intervals.
Compared with the prior art, the beneficial effects of the utility model are that: this kind of electric bicycle derailleur is rational in infrastructure, has following advantage:
(1) the bottom end of the sliding rod is movably hinged with the fixed rod, one end of the fixed rod can be compressed upwards in the rotation process of the second gear to drive the piston to slide downwards, so that lubricating oil is extruded out, after one gear rotates, the reset spring resets to drive the fixed rod to rotate, so that the piston can be driven by the sliding rod to recover the original position, when the next gear touches the fixed rod, the previous operation can be repeated, and the lubricating oil is automatically added into the transmission;
(2) the sealing ring is fixed inside the clamping groove by arranging the clamping groove at one end of the main body, and the main body is assembled by the mounting feet, so that the sealing ring has certain elasticity under the action of the cavity and the air bag, can be fully contacted with the main body, improves the sealing property of the main body and prevents lubricating oil from leaking;
(3) the steel balls are evenly and movably connected in the first sliding groove and the second sliding groove, and the steel balls can rotate when the first gear rotates, so that the friction coefficient of the first gear is reduced, the first gear rotates more smoothly, the phenomenon of blocking is avoided, and transmission can be better performed.
Drawings
Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;
fig. 2 is a schematic view of a front sectional structure of a first gear according to the present invention;
FIG. 3 is a schematic view of a partial front sectional structure of the main body of the present invention;
fig. 4 is a schematic view of the structure of the local section of the sealing structure of the present invention.
In the figure: 1. a lubrication structure; 101. a piston; 102. air holes are formed; 103. a slide bar; 104. a return spring; 105. fixing the rod; 106. a housing; 2. a main body; 3. mounting a foot; 4. a sealing structure; 401. a card slot; 402. a seal ring; 403. a cavity; 404. an air bag; 5. a first gear; 6. a second gear; 7. a first chute; 8. a steel ball; 9. a second chute; 10. and a shaft sleeve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides an embodiment: a speed changer of an electric bicycle comprises a main body 2, mounting feet 3, a first gear 5 and a second gear 6, wherein the mounting feet 3 are uniformly and fixedly connected to the outer side of the main body 2, a sealing structure 4 is arranged at one end of the main body 2, the sealing structure 4 comprises a clamping groove 401, a sealing ring 402, a cavity 403 and an air bag 404, the clamping groove 401 is arranged at one end of the main body 2, the sealing ring 402 is movably connected to the inner part of the clamping groove 401, the air bag 404 is arranged in the sealing ring 402, and the cavity 403 is uniformly and fixedly connected to the inner part of the air bag 404;
the cavities 403 are arranged in a diamond shape, the cavities 403 are arranged in the air bag 404 at equal intervals, so that contraction is more uniform, the sealing ring 402 is fixed in the clamping groove 401, the main body 2 is assembled through the mounting feet 3, and the sealing ring 402 has certain elasticity under the action of the cavities 403 and the air bag 404, can be fully contacted with the main body 2, and improves the sealing performance of the main body 2;
a lubricating structure 1 is arranged on one side of the top end inside the main body 2, the lubricating structure 1 comprises a piston 101, air holes 102, a sliding rod 103, a reset spring 104, a fixed rod 105 and a shell 106, the shell 106 is fixedly connected to one side of the top end inside the main body 2, the top end of the shell 106 is uniformly provided with the air holes 102, the bottom end of the shell 106 is movably connected with the sliding rod 103, the top end of the sliding rod 103 is fixedly connected with the piston 101, the bottom end of the sliding rod 103 is movably hinged with the fixed rod 105, one side of the top end of the fixed rod 105 is fixedly connected with the reset spring 104, the top end of the reset spring 104 is fixedly connected with the bottom;
the outer diameter of the piston 101 is smaller than the inner diameter of the shell 106, and the piston 101 and the shell 106 form sliding connection, so that lubricating oil can be extruded conveniently;
the hinge position of the fixed rod 105 is one third, a rotating structure is formed between the fixed rod 105 and the main body 2, so that the control is convenient, one end of the fixed rod 105 can be compressed upwards in the rotating process of the second gear 6 to drive the piston 101 to slide downwards, so that lubricating oil is extruded out, after one gear is rotated, the reset spring 104 is reset to drive the fixed rod 105 to rotate, so that the piston 101 can be driven by the slide rod 103 to restore the original position, and when the next gear touches the fixed rod 105, the previous operation can be repeated;
a first gear 5 is movably connected to one side inside the main body 2, a shaft sleeve 10 is movably connected inside the first gear 5, a second chute 9 is arranged outside the shaft sleeve 10, a first chute 7 is arranged inside the first gear 5, steel balls 8 are uniformly and movably connected between the first chute 7 and the second chute 9, and a second gear 6 is movably connected to the other side inside the main body 2;
constitute sliding structure between steel ball 8 and first spout 7, the second spout 9, steel ball 8 is equidistant setting in the inside of first spout 7 and second spout 9, makes to slide more stable, and in the course of the work, first gear 5 and second gear 6 can constantly rotate, and steel ball 8 can rotate often at first gear 5 rotation to reduce first gear 5's coefficient of friction, make first gear 5 rotate more smoothly, avoid appearing the dead condition of derailleur card.
The working principle is as follows: when the sealing device is used, firstly, the sealing ring 402 is fixed in the clamping groove 401, the main body 2 is assembled through the mounting leg 3, and the sealing ring 402 has certain elasticity due to the action of the cavity 403 and the air bag 404, can be fully contacted with the main body 2, and improves the sealing performance of the main body 2;
then, in the working process, the first gear 5 and the second gear 6 can rotate continuously, and the steel ball 8 can rotate when the first gear 5 rotates, so that the friction coefficient of the first gear 5 is reduced, the first gear 5 rotates more smoothly, and the condition that a transmission is blocked is avoided;
finally, one end of the fixing rod 105 is compressed upwards in the rotation process of the second gear 6 to drive the piston 101 to slide downwards, so that the lubricating oil is extruded out, after one gear rotates, the return spring 104 is reset to drive the fixing rod 105 to rotate, so that the piston 101 can be driven to return to the original position through the sliding rod 103, and when the next gear touches the fixing rod 105, the previous operation can be repeated.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. An electric bicycle derailleur, comprising a main body (2), a mounting foot (3), a first gear (5) and a second gear (6), characterized in that: the outer side of the main body (2) is uniformly and fixedly connected with a mounting foot (3), one end of the main body (2) is provided with a sealing structure (4), one side of the top end in the main body (2) is provided with a lubricating structure (1), the lubricating structure (1) comprises a piston (101), air holes (102), a sliding rod (103), a reset spring (104), a fixed rod (105) and a shell (106), the shell (106) is fixedly connected to one side of the top end in the main body (2), the top end of the shell (106) is uniformly provided with the air holes (102), the bottom end of the shell (106) is movably connected with the sliding rod (103), the top end of the sliding rod (103) is fixedly connected with the piston (101), the bottom end of the sliding rod (103) is movably hinged with the fixed rod (105), one side of the top end of the, and the top of reset spring (104) and the bottom fixed connection of casing (106), it is articulated to constitute the activity between dead lever (105) and main part (2), the inside one side swing joint of main part (2) has first gear (5), the inside swing joint of first gear (5) has axle sleeve (10), the outside of axle sleeve (10) is provided with second spout (9), the inside of first gear (5) is provided with first spout (7), even swing joint has steel ball (8) between first spout (7) and second spout (9), the inside opposite side swing joint of main part (2) has second gear (6).
2. An electrically variable bicycle transmission as claimed in claim 1, wherein: the outer diameter of the piston (101) is smaller than the inner diameter of the shell (106), and the piston (101) and the shell (106) form sliding connection.
3. An electrically variable bicycle transmission as claimed in claim 1, wherein: the hinge position of the fixed rod (105) is one third, and a rotating structure is formed between the fixed rod (105) and the main body (2).
4. An electrically variable bicycle transmission as claimed in claim 1, wherein: seal structure (4) is including draw-in groove (401), sealing washer (402), cavity (403) and gasbag (404), draw-in groove (401) sets up the one end in main part (2), the inside swing joint of draw-in groove (401) has sealing washer (402), the inside of sealing washer (402) is provided with gasbag (404), and the even fixedly connected with cavity (403) in inside of gasbag (404).
5. An electrically variable bicycle transmission as claimed in claim 4, wherein: the cavities (403) are arranged in a diamond shape, and the cavities (403) are arranged in the air bag (404) at equal intervals.
6. An electrically variable bicycle transmission as claimed in claim 1, wherein: and a sliding structure is formed among the steel balls (8), the first sliding chute (7) and the second sliding chute (9), and the steel balls (8) are arranged in the first sliding chute (7) and the second sliding chute (9) at equal intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022353555.8U CN213974350U (en) | 2020-10-21 | 2020-10-21 | Speed changer of electric bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022353555.8U CN213974350U (en) | 2020-10-21 | 2020-10-21 | Speed changer of electric bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213974350U true CN213974350U (en) | 2021-08-17 |
Family
ID=77257848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022353555.8U Expired - Fee Related CN213974350U (en) | 2020-10-21 | 2020-10-21 | Speed changer of electric bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213974350U (en) |
-
2020
- 2020-10-21 CN CN202022353555.8U patent/CN213974350U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210817 |