CN210686944U - Stable reverse gear lock structure - Google Patents
Stable reverse gear lock structure Download PDFInfo
- Publication number
- CN210686944U CN210686944U CN201921599006.XU CN201921599006U CN210686944U CN 210686944 U CN210686944 U CN 210686944U CN 201921599006 U CN201921599006 U CN 201921599006U CN 210686944 U CN210686944 U CN 210686944U
- Authority
- CN
- China
- Prior art keywords
- gear
- axle
- connecting cylinder
- reverse gear
- casing
- 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.)
- Active
Links
Images
Landscapes
- Gear-Shifting Mechanisms (AREA)
Abstract
The utility model relates to a derailleur technical field discloses a stable form reverse gear lock structure, which comprises a housin, keep off the position axle, the axle sleeve, keep off the position axle and transversely fix on the casing, axle sleeve and fender position axle sliding connection, the upper end side of axle sleeve is fixed with the control rod, the top surface of casing is equipped with the fender position groove, the bottom of casing is equipped with keeps off the position shift fork, the lower extreme of axle sleeve is fixed with the selection that corresponds with keeping off the position shift fork and keeps off the shift fork, the right side of casing is fixed with the connecting cylinder, the left end of connecting cylinder is equipped with the sliding sleeve, the right-hand member of sliding sleeve is sealed, the left end is equipped with the end cover, the center of sliding sleeve is equipped with the gag lever post, be equipped with the pressure spring between the right-hand member of right-hand member and the connecting cylinder, the left end face of gag. The utility model discloses have and effectively prevent to keep off the mistake that will go forward and hang into the beneficial effect that the car was kept off in the reverse gear, improved driving safety.
Description
Technical Field
The utility model relates to a derailleur technical field especially relates to a stable form reverse gear lock structure.
Background
The speed of the manual transmission automobile needs to be kept to be adaptive to the gear, frequent gear shifting is needed in the driving process, the gear in the advancing process of the automobile needs to be engaged with an advancing gear, the gear in the reversing process needs to be engaged with a reverse gear, and on the existing automobiles with a plurality of manual transmissions, 5 gears and the reverse gear are displaced from two ends of the same straight line, for example, some gear grooves are distributed in a shape like the Chinese character 'wang', wherein five end parts correspond to 1-5 gears (advancing gears), the sixth end part corresponds to the reverse gear, the middle part is a neutral gear, the reverse gear and the five gears are usually positioned on the same straight line, when the five gears are engaged into other advancing gears in the driving process, the reverse gear is easily mistakenly engaged, gear beating of a gear box is easily caused, the gear box is directly damaged, and driving accidents are also caused.
Although many manual vehicles are currently provided with a reverse gear lock between the fifth gear and the reverse gear, for example, chinese patent application No. 2015107529932, application date 2015/11/4, discloses a reverse gear lock structure, which comprises a guide head, a reverse gear lock torsion spring, a reverse gear lock plate, a shift seat, a reverse gear lock bolt, a reverse gear lock spring and a cylindrical pin; the guide head, the reverse gear lock torsion spring and the reverse gear lock plate penetrate through the gear shifting shaft; one end of the reverse gear lock torsion spring is hooked on the guide head. This kind of lock of reversing gear carries on spacingly through the locking plate of reversing gear, prevents to miss and puts into gear, then along with long-term use, the locking plate of reversing gear can wear and tear to make five keep off and reverse the car and keep off between can directly hang into poor stability.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the above-mentioned problem that the back-off lock among the prior art exists, provide a stable form back-off lock structure, this kind of back-off lock can effectively prevent to keep off the mistake with advancing and hang into the back-off, improves driving safety, and overall stability is good.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a stable form reverse gear lock structure, includes casing, fender position axle, axle sleeve, it transversely fixes on the casing to keep off the position axle, axle sleeve and fender position axle sliding connection, the upper end side of axle sleeve is fixed with the control rod, the top surface of casing is equipped with the fender position groove, and the bottom of casing is equipped with the fender position shift fork, the lower extreme of axle sleeve is fixed with the selection that corresponds with keeping off the position shift fork and keeps off the position shift fork, the right side of casing is fixed with the connecting cylinder, and the axis of connecting cylinder is parallel with the axis of keeping off the position axle, the left end of connecting cylinder is equipped with the sliding sleeve, and the right-hand member of sliding sleeve seals, and the left end is equipped with the end cover, the center of sliding sleeve is equipped with the gag lever post, is equipped with the pressure spring between the right-hand member of sliding sleeve and the right-hand member of connecting cylinder, and lies in between. The gear shifting forks are respectively a first gear, a second gear, a third gear, a fourth gear, a fifth gear and a reverse gear, wherein the fifth gear and the reverse gear are positioned on the same straight line, and the limiting rod is positioned between the fifth gear and the reverse gear; when the gear needs to be engaged into the fifth gear, the operating rod moves rightwards, the gear selecting shifting fork pushes the limiting rod to move rightwards (the pressure spring is compressed), the limiting rod is moved backwards to the fifth gear, the gear selecting shifting fork enters the fifth gear forwards, the gear selecting shifting fork is separated from the limiting rod at the moment, the limiting rod returns to the position between the fifth gear and the reverse gear again after being reset under the action of the pressure spring, therefore, the fifth gear cannot be directly engaged into the reverse gear, only the fifth gear is returned to the neutral gear first, and then the reverse gear is engaged after being moved rightwards to the position of the reverse gear, so that the reverse gear is effectively prevented from being mistakenly engaged when other gears are engaged into the fifth gear, and the driving safety effect is achieved.
Preferably, the right-hand member of gag lever post is equipped with the round pin axle, the both ends of round pin axle and the lateral wall fixed connection of sliding sleeve, the round pin axle passes the gag lever post perpendicularly and is connected with the gag lever post rotation, the center of end cover is equipped with the through-hole, the left end of gag lever post is close to the rigidity of end cover and is had the gag lever post, the both ends of round pin axle all overlap and are equipped with the torsional spring, and two pins of torsional spring pass the through-hole and arrange the both sides of gag. After a fifth gear or a reverse gear is engaged, when other gears need to be selected, the operating rod moves to the middle position, and the gear selecting shifting fork pushes the limiting rod to rotate by an angle along the pin shaft to avoid the gear selecting shifting fork (although the limiting rod does not rotate by an angle, the gear selecting shifting fork can also enter a neutral gear from the fifth gear or the reverse gear, and the gear selecting shifting fork is easy to block due to excessive force applied in the gear shifting process), so that the gear shifting is smoother, and the rigid collision between the gear selecting shifting fork and the limiting rod caused by excessive force applied in the gear shifting process is prevented; after the gear selecting shifting fork enters a neutral gear, the limiting rod resets to a central position under the action of the torsion spring so as to be convenient for next gear engaging.
Preferably, a position corresponding to the torsion spring on the hole wall of the through hole is provided with a limiting lug, and the limiting lug is positioned between the two pins of the torsion spring. The limiting lugs limit the pins of the torsion spring.
Preferably, the right end of the connecting cylinder is provided with a countersunk head bolt, and the countersunk head bolt is in threaded connection with the connecting cylinder. The pressure of the pressure spring can be adjusted through the countersunk head bolt so as to adjust the optimal state when the operating lever is in gear.
Therefore, the utility model discloses have and effectively prevent to keep off the mistake with advancing and hang into the beneficial effect that the driving safety was improved in the reverse gear.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of fig. 1 with the housing removed.
Fig. 3 is a schematic view of the connection between the sliding sleeve and the stop rod.
Fig. 4 is a left side view of fig. 3.
Fig. 5 is a schematic connection diagram of the limiting rod, the pin shaft and the torsion spring.
Fig. 6 is a bottom view of fig. 1.
In the figure: the gear shifting mechanism comprises a shell 1, a gear shaft 2, a shaft sleeve 3, an operating rod 4, a gear groove 5, a gear shifting fork 6, a gear selecting shifting fork 7, a connecting cylinder 8, a sliding sleeve 9, a countersunk bolt 10, an end cover 11, a through hole 12, a limiting lug 120, a limiting rod 13, a pressure spring 14, a pin shaft 15, a limiting pin 16 and a torsion spring 17.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments:
as shown in fig. 1, 2 and 6, the stable reverse gear lock structure includes a housing 1, a shift shaft 2, a shaft sleeve 3, the shift shaft 2 is transversely fixed on the housing, the shaft sleeve is slidably connected with the shift shaft, an operating lever 4 is fixed on the upper side of the shaft sleeve 3, a shift slot 5 is arranged on the top surface of the housing 1, a shift fork 6 is arranged at the bottom of the housing, the shift forks are respectively a first shift, a second shift, a third shift, a fourth shift, a fifth shift and a reverse shift, the middle is a neutral shift, a shift selecting fork 7 corresponding to the shift fork 6 is fixed at the lower end of the shaft sleeve 3, a connecting cylinder 8 is fixed on the right side of the housing 1, the axis of the connecting cylinder is parallel to the axis of the shift shaft, a sliding sleeve 9 is arranged at the left end of the connecting cylinder 8, a countersunk head bolt 10 is arranged at the right end of the connecting cylinder 8, and the countersunk head bolt; as shown in fig. 3, 4 and 5, the right end of the sliding sleeve 9 is closed, the left end is provided with an end cover 11, the center of the end cover is provided with a through hole 12, the center of the sliding sleeve 9 is provided with a limiting rod 13, a pressure spring 14 is arranged between the right end of the sliding sleeve 9 and a countersunk bolt 10 at the right end of the connecting cylinder 8, the left end of the limiting rod 13 passes through the through hole and then is positioned between a five-gear and a reverse gear of the gear shifting fork 6, the end face of the left end of the limiting rod faces towards the gear selecting shifting fork, the right end of the limiting rod 13 is provided with a pin shaft 15, the two ends of the pin shaft 15 are fixedly connected with the side wall of the sliding sleeve, the pin shaft 15 vertically passes through the limiting rod and is rotatably connected with the limiting rod, a limiting pin 16 is fixed at the position, close to the end cover, the two ends of the pin shaft 15 are both sleeved with a torsion spring 17, two pins of the torsion spring pass through the.
With the attached drawings, the principle of the utility model is as follows: the gear shifting forks are respectively a first gear, a second gear, a third gear, a fourth gear, a fifth gear and a reverse gear, wherein the fifth gear and the reverse gear are positioned on the same straight line, and the limiting rod is positioned between the fifth gear and the reverse gear; when the gear needs to be shifted into a fifth gear, the operating rod moves rightwards, the gear selecting shifting fork pushes the limiting rod to move rightwards (the pressure spring is compressed), the limiting rod moves backwards to the position where the five-gear operating rod pulls backwards, the gear selecting shifting fork enters the fifth gear forwards, the gear selecting shifting fork is separated from the limiting rod at the moment, the limiting rod returns to the position between the fifth gear and the reverse gear after being reset under the action of the pressure spring, therefore, the fifth gear cannot be directly shifted into the reverse gear, the reverse gear can be shifted only after the fifth gear returns to the neutral gear, and therefore, the fifth gear is effectively prevented from being shifted into the reverse gear by mistake when other gears are shifted, and the driving safety effect is achieved; when the fifth gear returns to the neutral gear, the gear selecting shifting fork moves to the middle position from the interior of the fifth gear and pushes the limiting rod to rotate for an angle around the pin shaft, the limiting rod is inclined to rotate at the moment, the gear selecting shifting fork smoothly enters the neutral gear, the gear selecting shifting fork cannot interfere with the limiting rod, clamping stagnation cannot occur, and stability is good.
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications made on the basis of the present invention to solve the same technical problems and achieve the same technical effects are all covered by the protection scope of the present invention.
Claims (4)
1. The utility model provides a stable form reverse gear lock structure, includes casing, fender position axle, axle sleeve, it transversely fixes on the casing to keep off the position axle, axle sleeve and fender position axle sliding connection, the upper end side of axle sleeve is fixed with the control rod, the top surface of casing is equipped with the fender position groove, and the bottom of casing is equipped with the fender position shift fork, the lower extreme of axle sleeve is fixed with the selection that corresponds with keeping off the position shift fork and keeps off the position shift fork, characterized by, the right side of casing is fixed with the connecting cylinder, and the axis of connecting cylinder is parallel with the axis of keeping off the position axle, the left end of connecting cylinder is equipped with the sliding sleeve, and the right-hand member of sliding sleeve is sealed, the left end is equipped with the end cover, the center of sliding sleeve is equipped with the gag lever post, be equipped with the pressure spring between the right-hand member of sliding sleeve right-hand member and the right-hand member of connecting cylinder.
2. The stable reverse gear lock structure as claimed in claim 1, wherein a pin is provided at a right end of the limiting rod, two ends of the pin are fixedly connected to the side walls of the sliding sleeve, the pin vertically passes through the limiting rod to be rotatably connected to the limiting rod, a through hole is provided at a center of the end cover, a limiting pin is fixed at a position of a left end of the limiting rod close to the end cover, two ends of the pin are sleeved with torsion springs, and two pins of the torsion springs are disposed at two sides of the limiting pin through the through holes.
3. The stable reverse gear lock structure of claim 2, wherein the through hole has a limiting lug on the wall corresponding to the torsion spring, and the limiting lug is located between two pins of the torsion spring.
4. The stable reverse gear lock structure as claimed in claim 1 or 2, wherein said connecting cylinder has a countersunk bolt at its right end, and said countersunk bolt is threadedly engaged with said connecting cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921599006.XU CN210686944U (en) | 2019-09-24 | 2019-09-24 | Stable reverse gear lock structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921599006.XU CN210686944U (en) | 2019-09-24 | 2019-09-24 | Stable reverse gear lock structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210686944U true CN210686944U (en) | 2020-06-05 |
Family
ID=70891396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921599006.XU Active CN210686944U (en) | 2019-09-24 | 2019-09-24 | Stable reverse gear lock structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210686944U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113217625A (en) * | 2021-05-31 | 2021-08-06 | 东风商用车有限公司 | Shifting fork structural part, mechanical gear locking structure and gearbox |
-
2019
- 2019-09-24 CN CN201921599006.XU patent/CN210686944U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113217625A (en) * | 2021-05-31 | 2021-08-06 | 东风商用车有限公司 | Shifting fork structural part, mechanical gear locking structure and gearbox |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9057436B1 (en) | Shift device for transmission | |
| CN210686944U (en) | Stable reverse gear lock structure | |
| CN201496522U (en) | Variable speed control manipulator used for heavy truck | |
| US2861465A (en) | Change speed gear operating system | |
| CN202144863U (en) | Parking gear shifting transmission system | |
| NO791454L (en) | TRACTOR. | |
| US5086895A (en) | Brake-actuating mechanism for vehicle parking brakes | |
| CN203857026U (en) | Double-slide-rail reverse gear locking mechanism | |
| CN201246464Y (en) | Tractor shift steering mechanism | |
| CN202029834U (en) | Automobile parking brake controlling device | |
| CN210770174U (en) | Use pin-type selector of mechanical locking | |
| CN202790495U (en) | Reverse gear self-locking device of automobile | |
| CN208119361U (en) | motorcycle gear shifting pedal adjustable mounting structure | |
| CN102359582A (en) | Front-and-rear-driving steering wheel type tractor gear-shifting operation system | |
| CN216610869U (en) | Multi-gear transmission mechanism of four-wheel drive tractor | |
| CN215673558U (en) | Top cover assembly for seven-gear manual transmission of commercial vehicle | |
| CN218894939U (en) | Low-speed gear anti-disengagement gear lock for four-wheel drive agricultural vehicle | |
| US2894410A (en) | Vehicle transmission control | |
| CN204942511U (en) | A kind of car speed change gear control mechanism | |
| CN216519539U (en) | Operating mechanism of tractor shuttle-shaped gear | |
| CN212717931U (en) | Flexible shaft gear shifting control system | |
| CN212338135U (en) | Double-thimble automatic gear shifter assembly and vehicle | |
| CN115992880A (en) | Compact gearbox controller | |
| CN218207763U (en) | Prevent guide block tilting mechanism and derailleur of shifting | |
| CN210265812U (en) | Gear shifting mechanism of mini-tiller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |