CN2103016U - Anti-reverse device for hand-starting cranking bar of automobile - Google Patents
Anti-reverse device for hand-starting cranking bar of automobile Download PDFInfo
- Publication number
- CN2103016U CN2103016U CN 91219473 CN91219473U CN2103016U CN 2103016 U CN2103016 U CN 2103016U CN 91219473 CN91219473 CN 91219473 CN 91219473 U CN91219473 U CN 91219473U CN 2103016 U CN2103016 U CN 2103016U
- Authority
- CN
- China
- Prior art keywords
- ratchet
- crank
- back seat
- main shaft
- fixed base
- 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
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 5
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Transmission Devices (AREA)
Abstract
The utility model discloses a device that is used for when hand cranking automobile engine, prevents that the crank from reversing suddenly and injuring the operator. The torque transmission mechanism is composed of inner and outer conical teeth which are tightly meshed with each other, and a wedge surface and a spigot of an outer ring of the inner conical tooth are matched with an outer ring of a ratchet wheel in the one-way clutch to form a reverse disengagement mechanism; the fixed seat of the one-way clutch is provided with a guide post which can be inserted into two half-circle holes of the automobile bumper to limit the rotation of the automobile bumper. When the crankshaft is reversed by not more than 5 degrees due to failure to start the engine, the device can immediately stop the rotation of the crank held by the operator.
Description
The utility model is the automobile hand primer crank anti kickback attachment that is used for need hand starting occasions such as motor car engine.
In technology in the past, the crank that motor car engine etc. are used for hand primer all is to be formed by a certain garden steel bending of diameter, at its front end bayonet lock is arranged, and can insert in the engine crankshaft, when shaking after crank makes engine start, the crank bayonet lock then automatically withdraws from crankshaft hole; But when using hand primer usually, motor might not once can start, just can achieve the goal and often need repeatedly shake motor, this is with regard to existing when shaking that certain cylinder that crank makes motor reaches the whole stroke of compression and when failing to light inflammable mixture in the cylinder this moment, engine crankshaft tends to suddenly reverse certain angle, and make also bounce-back suddenly thereupon of crank, if the operator does not note slightly at this moment, will be wounded by crank.
The purpose of model utility is: overcome the shortcoming of known crank, install an automobile hand primer crank anti kickback attachment at the middle part of former crank additional.It is when piloting engine, and the straight torsion bar that inserts engine crankshaft partly partly rotates with holding crank synchronously by this device, thereby plays and the identical effect of smooth bar folding-tortuous type crank; But fail starting and bent axle when reversing suddenly at motor, the releasing mechanism of this device promptly forces crank to separate with straight torsion bar, though at this moment straight torsion bar is still along with the bent axle counter-rotating, the crank of holding partly can stop operating immediately, to reach the purpose of avoiding injuring the operator.
Automobile hand primer crank anti kickback attachment is divided into former and later two partly by the identical intermeshing torque transmission mechanism of inside and outside awl tooth of a pair of number of teeth with crank: the front portion is a main shaft (21) that outer cone tooth (14) are arranged, it can with fastening connection of straight torsion bar (3); The rear portion is the back seat (17) of inner cone tooth (16).It can with hold fastening connection of crank (18).Also has at least one sphenoid surface (26) and seam (27) vertically in the outer ring of back seat (17), it cooperates with sphenoid surface (24) and seam (25) on the ratchet (10) in another overrunning clutch, constitutes the reverse releasing mechanism that back seat can be moved vertically.Overrunning clutch is made of ratchet (10), fixed base (9) and at least one ratchet (23) and torsion spring (22).There is at least one can insert guide pillar (7) in last two semicircle orifices of bumper (4) (5) at the front end of fixed base (9) with the rotational freedom of restriction fixed base (9).When shaking crank (18).Back seat (17) is forward rotation thereupon, seam (27) drives seam (25) rotates ratchet, this moment, overrunning clutch was inoperative, and the inner cone tooth (16) on the back seat (17) fully meshes with the outer cone tooth (14) that is positioned on the main shaft (21) under spring (19) effect, thereby the torsion that crank (18) rotation is produced can directly be passed to straight torsion bar (3), and drives engine revolution.When motor reverses suddenly, its torsion direction of transfer becomes to be passed to inner cone tooth (16) by straight torsion bar (3) through outer cone tooth (14) and does counterrotating, and the sphenoid surface (24) that the sphenoid surface (26) on the back seat (17) also will drive on the ratchet (10) rotates together, but this moment, overrunning clutch then began to work, torsion spring (22) makes the ratchet (11) on the ratchet (10) be blocked by ratchet (23) and join together and can not rotate with fixed base (9), and still make sphenoid surface generation effect at the back seat (17) that rotates, and it is in axial direction mobile backward to promote back seat (17), when crank (18) turns over very little angle, promptly force inner cone tooth (16) to move backward and break away from outer cone tooth (14).Thereby cut off by straight torsion bar (3) and pass the torsion of coming, realized the purpose of the anti-reversing of crank (18).
Other structure of model utility is: torque transmission mechanism can be contrate gear or axial splines tooth; Overrunning clutch also can be a roller-type overrunning clutch.
Model utility is compared with known crank, can not injure operator's advantage when having with the hand starting motor, eliminates its nervous psychology; Can also the extend length of the crank arm of force is to alleviate operator's labor intensity; When being used for the mounting or dismounting automobile spare tire, this device is not because the rotary freedom of fixed base (9) is restricted and inoperative, and its effect is just the same with common crank.In addition, its structure is small and exquisite, also can make full use of the straight torsion bar on original crank simultaneously and hold crank to save material.
Figure one, figure two are the structure and the embodiment of model utility:
Device is based on main shaft (21) and be enclosed within on the main shaft and can be along its back seat (17) in axial sliding, in the rear end of main shaft (21) end cap (20) is arranged, spring (19) makes the inner cone tooth (16) on the back seat (17) withstand outer cone tooth (14) on the main shaft (21), constitutes torque transmission mechanism; Sphenoid surface (24) and seam (25) on sphenoid surface (26) on the back seat (17) and seam (27) and the ratchet (10) constitute reverse releasing mechanism; Ratchet (11) on the ratchet (10), ratchet (23), torsion spring (22) and fixed base (9) constitute overrunning clutch; Positioning ring (8), block (12) and back-up ring (15) play restriction fixed base (9) and ratchet (10) axial displacement; Front end at main shaft (21) has tapped hole (13), straight torsion bar (3) can screw in wherein, and can be on the double-screw bolt of straight torsion bar (3) shimming to adjust its length, in the rear end of back seat (17) crank (18) is arranged, in the time will piloting engine, the straight torsion bar (3) that has pin (2) is inserted in the bent axle (1) by hole (6) on the bumper (4) and semicircle orifice (5), two guide pillars (7) that are arranged in fixed base (9) front end simultaneously also snap in semicircle orifice (5), have limited the rotation of fixed base (9).When the operator holds crank and pilots engine, because clutch is inoperative when just changeing.Therefore inner cone tooth (16) is at spring (19) effect lower compression outer cone tooth (14), make it to drive straight torsion bar (3) and drive bent axle (1) rotation, at this moment ratchet (10) dallies around fixed base (9), when because of failing to pilot engine bent axle (1) when reversing suddenly, then back seat (17) will drive and then reversing of ratchet (10), this moment, overrunning clutch then began to work, ratchet (23) blocks ratchet (10) and does not allow its counter-rotating, meanwhile sphenoid surface (26) will slide along sphenoid surface (24), and it is mobile backward vertically to promote back seat (17), when its displacement amount equals outer cone tooth (14) with axial tooth depth that inner cone tooth (16) contacts, crank (18) promptly stops reversing, straight torsion bar is then still dallying, thereby has avoided the injured possibility of operator.
Claims (3)
1, a kind of automobile hand primer crank anti kickback attachment has main shaft (21), back seat (17), ratchet (10) and fixed base (9), it is characterized in that: have outer cone tooth (14) on the main shaft (21), with inner cone tooth (16) the formation torque transmission mechanism on the back seat (17); One sphenoid surface (26) is arranged on the back seat (17), constitute reverse releasing mechanism with sphenoid surface (24) on the ratchet (10); Have ratchet (11) and ratchet (23) and fixed base (9) on the ratchet (10), constituted the overrunning clutch that only when crank (18) reverses, just works; On the front end of main shaft (21) and main shaft, also be provided with positioning ring (8), link stopper (12), back-up ring (15), with the axial displacement of restriction fixed base (9) and ratchet (10) along main shaft (21); Have at least a guide pillar (7) can insert in the semicircle orifice (5) on the automobile front beam (4) on the fixed base (9), with the rotation of restriction fixed base (9).
2, device as claimed in claim 1, it is characterized in that: back seat (17) is enclosed within main shaft (21) and goes up and can move along its axis, between end cap that is fixed in main shaft (21) one ends (20) and back seat (17), spring (19) is arranged, make identical outer cone tooth (14) of the number of teeth and inner cone tooth (16) tight engagement.
3, device as claimed in claim 1, it is characterized in that: the outer ring of back seat (21) has a sphenoid surface (26) and seam (27) at least, the outer ring of ratchet (10) also has sphenoid surface (24) and seam (25) to cooperate with it, when crank (18) when just changeing, seam (27) drives seam (25) and rotates; When crank (18) reversed, sphenoid surface (26) slided along sphenoid surface (24), and made back seat (17) produce axial displacement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91219473 CN2103016U (en) | 1991-08-01 | 1991-08-01 | Anti-reverse device for hand-starting cranking bar of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91219473 CN2103016U (en) | 1991-08-01 | 1991-08-01 | Anti-reverse device for hand-starting cranking bar of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2103016U true CN2103016U (en) | 1992-04-29 |
Family
ID=4926733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91219473 Pending CN2103016U (en) | 1991-08-01 | 1991-08-01 | Anti-reverse device for hand-starting cranking bar of automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2103016U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100350151C (en) * | 2005-06-11 | 2007-11-21 | 牛刚学 | Combined pawl in a pressure relief arrangement of a single cylinder internal combustion engine |
| CN109924683A (en) * | 2019-04-17 | 2019-06-25 | 吉林化工学院 | A kind of industrial design plotting unit |
-
1991
- 1991-08-01 CN CN 91219473 patent/CN2103016U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100350151C (en) * | 2005-06-11 | 2007-11-21 | 牛刚学 | Combined pawl in a pressure relief arrangement of a single cylinder internal combustion engine |
| CN109924683A (en) * | 2019-04-17 | 2019-06-25 | 吉林化工学院 | A kind of industrial design plotting unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |