CN104627284A - Bicycle chain guard assembly - Google Patents
Bicycle chain guard assembly Download PDFInfo
- Publication number
- CN104627284A CN104627284A CN201510037202.8A CN201510037202A CN104627284A CN 104627284 A CN104627284 A CN 104627284A CN 201510037202 A CN201510037202 A CN 201510037202A CN 104627284 A CN104627284 A CN 104627284A
- Authority
- CN
- China
- Prior art keywords
- installation portion
- pinning
- locking
- lockhole
- chain
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J13/00—Guards for chain, chain drive or equivalent drive, e.g. belt drive
- B62J13/04—Guards for chain, chain drive or equivalent drive, e.g. belt drive completely enclosing the chain drive or the like
Abstract
The invention provides a bicycle chain guard assembly. The bicycle chain guard assembly comprises a guard body, a front installation portion and a rear installation portion, wherein the front installation portion and the rear installation portion are fixedly connected to a bicycle frame on the inner side of a chain; multiple locking lugs are arranged on the inner side face of the guard body; locking grooves allowing the locking lugs to be inserted are formed in the outer side faces of the front installation portion and the rear installation portion; the front installation portion and the rear installation portion are provided with locking holes; the locking holes perpendicularly penetrate through the locking grooves; locking pins are installed in the locking holes and sleeved with springs. When the bicycle chain guard assembly is in a mounted state, the locking lugs are inserted into the locking grooves, and the springs provide pressure to fasten the locking lugs between the locking pins and the groove walls of the locking grooves; when the bicycle chain guard assembly is in a dismounted state, the locking pins are pulled out by overcoming the resistance of the springs, and the locking lugs disengage from the locking grooves. Through cooperation of the locking lugs, the locking grooves and the locking pins, positioning and mounting of the guard body are achieved, an existing screw screwing fixation mode is replaced, the same fastening effect with screw fastening is achieved through multi-point fixation, dismounting is convenient, and a large enough operation space is provided for maintenance of the chain.
Description
Technical field
The invention belongs to bicycle accessories field, especially relate to a kind of bicycle chain.
Background technology
The chain guard of bicycle is used for preventing foreign material from entering in chain, and can isolate the clothing of bicyclist and chain thus avoid the stained clothing of the lubricating oil on chain.Existing bicycle chain is divided into closed and open type, closedly all be closed in chain guard by chain, comprise the chain at hind axle place, in this, the advantage of structure is that chain can run in closed safe environment, and shortcoming is inconvenient to dismantle, the complicated operation of maintenance chain; The chain guard of open type is the front area only blocking chain, and advantage is light and beautiful, and shortcoming is that installation is insecure, when driving easy loose or dislocation.
Summary of the invention
The problem to be solved in the present invention is to provide a kind of bicycle chain shade assembly, both can realize installation securely, can realize again conveniently dismantling, for the replacing of chain and maintenance provide enough spaces.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of bicycle chain shade assembly, comprise cover body, front installation portion and rear installation portion, front installation portion and rear installation portion are all fixed on the vehicle frame inside chain, the medial surface of cover body is provided with multiple lock ear, the lateral surface of front installation portion and rear installation portion is provided with the locked groove inserted for lock ear;
Front installation portion and rear installation portion also offer lockhole, and lockhole vertically runs through locked groove, is provided with pinning in lockhole, spring is arranged with outside pinning, one end and the pinning of spring are affixed, and the inwall of the other end and lockhole is affixed, and spring provides pinning to hold out against the power of locked groove cell wall;
Installing condition: lock ear inserts in locked groove, spring provides pressure to be anchored between pinning and the cell wall of locked groove by lock ear; Disassembly status: pull out pinning outside against the force of the spring, lock ear is deviate from from locked groove.
Wherein, the surface of lock ear is provided with draw-in groove, and the groove footpath of draw-in groove is greater than the diameter of pinning termination, and after lock ear inserts locked groove, pinning clamping stagnation is in draw-in groove.
Further, draw-in groove is set to and the circle of the termination nested arrangements of pinning, equilateral polygon or strip.
Wherein, rear installation portion comprises mount pad and movable lock, and mount pad is fixed in vehicle frame, is provided with jointed shaft between movable lock and mount pad, the plane orthogonal at jointed shaft and chain place, and locked groove, lockhole and pinning are all arranged on movable lock.
Wherein, the tip diameter of pinning is greater than the diameter and both transition position formation chuck of following closely body, the aperture of lockhole is greater than the diameter of termination, the diameter in the outer aperture of lockhole is less than the diameter of termination and is greater than the diameter following closely body, and the two ends of spring hold out against the chuck in the outer aperture of lockhole and termination and nail body transition position respectively.
Further, the medial surface of cover body is provided with and blocks eaves, blocks eaves and blocks periphery in chain, and lock ear is arranged at and blocks on the medial surface of eaves.
The advantage that the present invention has and good effect are:
1, coordinate by lock ear and locked groove and pinning the location and installation realizing cover body, replace existing screw tightening fixed form, the fastening effect identical with fastened by screw is fixedly reached by multiple spot, and convenient disassembly, the maintenance for chain provides enough operational spaces.
2, draw-in groove lock ear set up and pinning form clamping stagnation state, and the flutter failure in driving conditions can be avoided to lock the fastening effect of ear and pinning.
3, the movable lock on rear installation portion then can realize, when not exclusively dismantling cover body, obtained the operational space of chain maintenance maintenance, and the installation that can be cover body providing positioning datum, shorten the location and installation time by the mode overturning cover body.
4, tip diameter is greater than the design of nail body diameter, then ensure that spring holds out against effect to pinning, and ensure that outer it can not deviate from from lockhole when pulling out pinning.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention
Fig. 2 is the structural representation of one embodiment of the present of invention
Fig. 3 is the view that pinning holds out against locked groove cell wall
Fig. 4 is the view of pulling out outside pinning
In figure: 1-cover body, 11-blocks eaves, installation portion before 2-, installation portion after 3-, 31-mount pad, 32-movable lock, and 4-locks ear, 5-locked groove, 6-lockhole, and the outer aperture of 61-, 7-pinning, 71-termination, 72-follows closely body, 73-chuck, 8-spring, 9-draw-in groove
Detailed description of the invention
Below in conjunction with accompanying drawing, specific embodiments of the invention are elaborated.
As shown in Figure 1, a kind of bicycle chain shade assembly, comprise cover body 1, front installation portion 2 and rear installation portion 3, front installation portion 2 and rear installation portion 3 are all fixed on the vehicle frame inside chain, the medial surface of cover body 1 is provided with multiple lock ear 4, the lateral surface of front installation portion 2 and rear installation portion 3 is provided with the locked groove 5 inserted for lock ear 3;
Front installation portion 2 and rear installation portion 3 also offer lockhole 6, and lockhole 6 vertically runs through locked groove 5, is provided with pinning 7 in lockhole 6, spring 8 is arranged with outside pinning 7, one end and the pinning 7 of spring 8 are affixed, and the inwall of the other end and lockhole 6 is affixed, and spring 8 provides pinning 7 to hold out against the power of locked groove 5 cell wall;
Installing condition: lock ear 4 inserts in locked groove 5, spring 8 provides pressure to be anchored between the cell wall of pinning 7 and locked groove 5 by lock ear 4; Disassembly status: overcome outside spring 8 resistance and pull out pinning 7, lock ear 4 is deviate from from locked groove 5.
Cover body 1 can adopt existing open type chain cover structure, for chain provides protection, shape and the chain of cover body 1 adapt, front installation portion 2 is connected with the front and rear of cover body 1 respectively with rear installation portion 3, during installation, aimed at locked groove 5 by lock ear 4 and push in locked groove 5, lock ear 4 can be located fastening by pinning 7 under the effect of spring 8, completes installation; And when dismantling, only need will pull out outside pinning 7, lock ear 4 just can be extracted from locked groove 5.Although the fastening effect that the fastening effect that spring 8 provides obtains not as the direct mode of screwing down is good, but cover body 1 is provided with multiple lock ear 4, form multiple fastening point of cover body 1, cover body 1 and forward and backward installation portion (2 can be ensured, 3) firm connection, and multiple lock ear 4 can synchronously insert locked groove 5, also separated regions inserts locked groove 5 according to the order of sequence, installs and dismantles more common fastened by screw more convenient and quicker.
In order to avoid the vibration in driving conditions causes lock ear 4 to deviate from from locked groove 5, in one embodiment of the present of invention, the surface of lock ear 4 is provided with draw-in groove 9, and the groove footpath of draw-in groove 9 is greater than the diameter of the termination 71 of pinning 7, after lock ear 4 inserts locked groove 5, pinning 7 clamping stagnation is in draw-in groove 9.Like this, even if produce lasting vibration in driving, also the clamping stagnation state of pinning 7 and draw-in groove 9 can not be destroyed, therefore, can ensure that lock ear 4 can not be deviate from when driving in locked groove 5, pull out outside pinning 7 unless applied external force, otherwise, cover body 1 and forward and backward installation portion (2,3) can not be caused to be separated.
In the present embodiment, draw-in groove 9 can be set to and the circle of termination 71 nested arrangements of pinning 7, equilateral polygon or strip.The termination 71 of pinning 7 can be limited in minimum zone by the draw-in groove 9 of this several shape, can avoid the slip of pinning 7 in draw-in groove 9, thus can play the fastening effect optimizing lock ear 4 and locked groove 5 and pinning 7 further.Draw-in groove 9 shape provided in the present embodiment is just preferably selected, and the draw-in groove 9 of other shape also can realize, to the clamping stagnation effect of pinning 7, all belonging to protection scope of the present invention.
After cover body 1 is dismantled, when again installing, all lock ears 4 need be reorientated, the time of simultaneously locating needed for multiple lock ear 4 is longer, and in one embodiment of the present of invention, rear installation portion 3 comprises mount pad 31 and movable lock 32, mount pad 31 is fixed in vehicle frame, be provided with jointed shaft between movable lock 32 and mount pad 31, the plane orthogonal at jointed shaft and chain place, locked groove 5, lockhole 6 and pinning 7 are all arranged on movable lock 32.Like this, when dismantling cover body 1, can only dismantle the lock ear 4 be connected with front installation portion 2, do not dismantle the lock ear 4 be connected with rear installation portion 3, but on jointed shaft, turn over cover body 1 to obtain the operational space around chain, thus while facilitating chain maintenance to maintain, can without the need to cover body 1 be all pulled down, the lock ear 4 at later installation portion 3 place conveniently can locate other lock ear 4 as positioning datum, shortens the time for positioning of lock ear 4.
As shown in Figure 3 and Figure 4, in one embodiment of the present of invention, termination 71 diameter of pinning 7 is greater than the diameter and both transition position formation chuck 73 of following closely body 72, the aperture of lockhole 6 is greater than the diameter of termination 71, the diameter in the outer aperture 61 of lockhole 6 is less than the diameter of termination 71 and is greater than the diameter following closely body 72, and the two ends of spring 8 hold out against the chuck 73 in the outer aperture 61 of lockhole 6 and termination 71 and nail body 72 transition position respectively.Like this, spring 8 is limited between chuck 73 and the outer aperture 61 of lockhole 6 all the time, even if spring 8 is destroyed with the built-in structure of pinning 7 and lockhole 6, it can not be affected to the application force of pinning 7, and the diameter in outer aperture 61 is less than the diameter of the termination 71 of pinning 7, therefore, pulling out pinning 7 outward also can not cause pinning 7 to deviate from from lockhole 6, improve the fitness of each parts, extend service life.
In order to protect chain from the shower of rainwater, and the foreign material such as rubble are avoided to enter in the gap of chain, in one embodiment of the present of invention; as shown in Figure 2; the medial surface of cover body 1 is provided with and blocks eaves 11, blocks eaves 11 and blocks periphery in chain, lock ear 4 be arranged at block eaves 11 medial surface on.Rainwater shower chain can be avoided when raining like this, and block eaves 11 foreign material also can be avoided disorderly to enter.
Above one embodiment of the present of invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the present patent application scope change and improve, and all should still belong within patent covering scope of the present invention.
Claims (6)
1. a bicycle chain shade assembly, it is characterized in that: comprise cover body (1), front installation portion (2) and rear installation portion (3), front installation portion (2) and rear installation portion (3) are all fixed on the vehicle frame inside chain, the medial surface of cover body (1) is provided with multiple lock ear (4), the lateral surface of front installation portion (2) and rear installation portion (3) is provided with the locked groove (5) inserted for lock ear (4);
Front installation portion (2) and rear installation portion (3) also offer lockhole (6), lockhole (6) vertically runs through locked groove (5), pinning (7) is installed in lockhole (6), spring (8) is arranged with outside pinning (7), one end and the pinning (7) of spring (8) are affixed, the inwall of the other end and lockhole (6) is affixed, and spring (8) provides pinning (7) to hold out against the power of locked groove (5) cell wall;
Installing condition: lock ear (4) inserts in locked groove (5), spring (8) provides pressure will lock ear (4) to be anchored between the cell wall of pinning (7) and locked groove (5); Disassembly status: overcome outside spring (8) resistance and pull out pinning (7), lock ear (4) is deviate from from locked groove (5).
2. bicycle chain shade assembly according to claim 1, it is characterized in that: the surface of lock ear (4) is provided with draw-in groove (9), the groove footpath of draw-in groove (9) is greater than the diameter of the termination (71) of pinning (7), after lock ear (4) inserts locked groove (9), pinning (7) clamping stagnation is in draw-in groove (7).
3. bicycle chain shade assembly according to claim 2, is characterized in that: draw-in groove (9) is set to and the circle of the termination of pinning (7) (71) nested arrangements, equilateral polygon or strip.
4. bicycle chain shade assembly according to claim 1, it is characterized in that: rear installation portion (3) comprises mount pad (31) and movable lock (32), mount pad (31) is fixed in vehicle frame, jointed shaft is provided with between movable lock (32) and mount pad (31), the plane orthogonal at jointed shaft and chain place, locked groove (5), lockhole (6) and pinning (7) are all arranged on movable lock (32).
5. bicycle chain shade assembly according to claim 1, it is characterized in that: termination (71) diameter of pinning (7) is greater than the diameter and both transition positions formation chuck (73) of following closely body (72), the aperture of lockhole (6) is greater than the diameter of termination (71), the diameter in the outer aperture (61) of lockhole (6) is less than the diameter of termination (71) and is greater than the diameter following closely body (72), the two ends of spring (8) hold out against respectively in the outer aperture (61) of lockhole (6) and termination (71) and the chuck (73) of following closely body (72) transition position.
6. bicycle chain shade assembly according to claim 1, it is characterized in that: the medial surface of cover body (1) is provided with and blocks eaves (11), block eaves (11) and block periphery in chain, lock ear (4) be arranged at block eaves (11) medial surface on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510037202.8A CN104627284A (en) | 2015-01-23 | 2015-01-23 | Bicycle chain guard assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510037202.8A CN104627284A (en) | 2015-01-23 | 2015-01-23 | Bicycle chain guard assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104627284A true CN104627284A (en) | 2015-05-20 |
Family
ID=53206642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510037202.8A Pending CN104627284A (en) | 2015-01-23 | 2015-01-23 | Bicycle chain guard assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104627284A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108798224A (en) * | 2018-06-05 | 2018-11-13 | 温州市中强建设工程有限公司 | Building construction protective fence |
| WO2019233167A1 (en) * | 2018-06-03 | 2019-12-12 | Huang Yuebo | Chain cover |
-
2015
- 2015-01-23 CN CN201510037202.8A patent/CN104627284A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019233167A1 (en) * | 2018-06-03 | 2019-12-12 | Huang Yuebo | Chain cover |
| CN108798224A (en) * | 2018-06-05 | 2018-11-13 | 温州市中强建设工程有限公司 | Building construction protective fence |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150520 |
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| WD01 | Invention patent application deemed withdrawn after publication |