CN110130752B - Automobile tail door lock with emergency release lever - Google Patents
Automobile tail door lock with emergency release lever Download PDFInfo
- Publication number
- CN110130752B CN110130752B CN201910546867.XA CN201910546867A CN110130752B CN 110130752 B CN110130752 B CN 110130752B CN 201910546867 A CN201910546867 A CN 201910546867A CN 110130752 B CN110130752 B CN 110130752B
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- China
- Prior art keywords
- cylinder
- emergency release
- elastic strip
- release rod
- point
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- 238000000034 method Methods 0.000 claims description 5
- 238000013507 mapping Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B83/00—Vehicle locks specially adapted for particular types of wing or vehicle
- E05B83/16—Locks for luggage compartments, car boot lids or car bonnets
- E05B83/18—Locks for luggage compartments, car boot lids or car bonnets for car boot lids or rear luggage compartments
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
- E05B85/20—Bolts or detents
- E05B85/24—Bolts rotating about an axis
Landscapes
- Lock And Its Accessories (AREA)
Abstract
The invention discloses an automobile tail door lock with an emergency release rod, which comprises the emergency release rod hinged on a cover through a shaft and a first cylinder arranged on the cover and propped against an elastic strip of the emergency release rod, wherein the elastic strip of the emergency release rod is arc-shaped; the free end of the elastic strip is bent towards the emergency release rod body; the end face of the elastic strip from the root starting point to the free end continuously extends from thick to thin; the emergency release rod further comprises a second cylinder which is arranged on the cover cap and is used for propping against the elastic strip of the emergency release rod, the center of the second cylinder is positioned in the side line of the emergency release rod body, which is close to the center of the first cylinder, and when the emergency release rod is in an assembled state, a gap is reserved between the outer circumferential surface of the second cylinder and the elastic strip. The automobile tail door lock has good mechanical property, reduces deformation under the same movement stroke, and avoids the phenomenon that an elastic strip is crushed; the second cylinder defines the deformation profile of the elastic strip, thereby substantially ensuring a smooth return of the emergency release lever.
Description
Technical Field
The invention relates to the technical field of automobile accessories, in particular to an automobile tail door lock with an emergency release rod.
Background
The automobile tail door lock in the prior art is a very mature technology, for example, a motor arranged in an electric appliance base is electrified and then drives a release plate to dial leftwards or rightwards through a worm and a worm wheel to drive a release rod and a pawl which are arranged in the base and are coaxial to rotate so as to release the constraint on a ratchet wheel, thereby opening the tail door lock.
However, the tail gate lock of the prior art still has the following disadvantages: 1. the emergency release rod body hinged to the electric appliance base and the elastic strip of the emergency release rod are made of plastic materials in general and extend in a direction away from the emergency release rod body in a straight line except for a connecting part in consideration of cost saving, so that in practical application, deformation is large, and especially under a low-temperature condition, the phenomenon that the elastic strip is crushed frequently occurs also affects the functions and the safety reliability of the tail door lock. 2. After the elastic strip of the emergency release rod is pressed, the elastic strip is not smoothly reset or even can not be automatically reset. 3. The worm wheel shaft is only arranged in the electric appliance base, and the positioning effect of the worm wheel is not ideal in actual use.
Disclosure of Invention
The invention aims to solve the technical problem of providing the automobile tail door lock with the emergency release rod, which has the advantages of reduced deformation and reduced breakage of an elastic strip.
The technical scheme is that the automobile tail door lock with the emergency release rod comprises an emergency release rod body hinged on a cover through a shaft and a first cylinder arranged on the cover and propped against an elastic strip of the emergency release rod, wherein the elastic strip of the emergency release rod is in a circular arc shape, the circle center position of the first cylinder is not lower than the position of the free end face of the elastic strip which is in a natural state and is downward to 1/3 of the length of the elastic strip, and the distance from the tangent point of the first cylinder and the elastic strip to the rightmost edge of the emergency release rod body is smaller than the distance from the tangent point of the first cylinder and the elastic strip to the rightmost edge of the emergency release rod body when the elastic strip is in the natural state when the emergency release rod is in an assembled state.
After the structure is adopted, the elastic strip is changed from straight line to arc shape, the mechanical property is good, the deformation is reduced under the same movement stroke, and the phenomenon that the elastic strip is crushed is reduced.
Further, the free end of the elastic strip is bent towards the emergency release rod body. After the structure is adopted, the mechanical property of the elastic strip is better, the deformation is smaller under the same movement stroke, and the phenomenon that the elastic strip is crushed is basically avoided.
Further, the elastic strip extends continuously from the root to the end face of the free end from the thickness to the thinness. After the structure is adopted, the thickness of the original easily broken part of the elastic strip is reinforced, and the gradually thinned part can ensure that the deformation is in the elastic deformation range, so that the phenomenon that the elastic strip is broken by pressure is completely avoided.
Further, the automobile door lock with the emergency release rod further comprises a second cylinder which is arranged on the cover cap and is used for propping against the elastic strip of the emergency release rod, the circle center of the second cylinder is in a side line of the emergency release rod body, which is close to the plumb line of the circle center of the first cylinder, and when the automobile door lock is in an assembling state, a gap is reserved between the outer circumferential surface of the second cylinder and the elastic strip. After the structure is adopted, the second cylinder limits the deformation outline of the elastic strip, so that the smooth reset of the emergency release rod is basically ensured, and the emergency opening function and the safety and reliability of the automobile tail door lock are further ensured.
Further, the exact position of the second cylinder is determined as a mapping method:
① . A connecting line A of the shaft and the center of the first cylinder is used as a connecting line A;
② . The circle center of the first cylinder is taken as an axis to rotate clockwise to 11.3-16.7 degrees with the angle A of the clamp to obtain a line B, the included angle is represented by an angle theta in the drawing, and the line B and the first cylinder intersect at the point A;
③ . C line is connected from the point C of the lower starting point of the elastic strip to the point A;
④ . A vertical bisector of the C line is made;
⑤ . Finding out an intersection point B of the perpendicular bisector and the B line;
⑥ . Taking the point B as a circle center, and taking the points B to C or the points B to A as radiuses to draw a circular arc;
⑦ . The second cylinder is arranged on any tangent point between the second cylinder and the arc line between the point A and the point C.
After the method is adopted, the accurate position of the second cylinder on the cover cap can be determined, so that the smooth and rapid resetting of the emergency release rod is ensured, namely, the automobile door lock with the emergency release rod can enable the deformation of the elastic strip to be smaller, completely avoid the phenomenon that the elastic strip is broken by pressing, ensure the smooth and rapid resetting of the emergency release rod, and further ensure the emergency opening function of the automobile tail door lock and the safety and reliability of the automobile tail door lock.
Further, the second cylinder is arranged on the intersection point of the perpendicular bisector and the circular arc line or on the outer side of the circular arc line within 20mm on two sides of the perpendicular bisector, and any point on the section of circular arc line can be used as the tangent point of the second cylinder and the circular arc line. After the structure is adopted, the technical effect of smoothly and rapidly resetting the emergency release rod is better.
Further, the worm wheel shaft is also used as a rivet or a screw, and two ends of the worm wheel shaft are fixed with the connecting plates of the worm wheel and the base. After the structure is adopted, the positioning effect is ideal in actual use, so that the safety and reliability of the automobile tail door lock are further ensured. Meanwhile, the gear shaft is also used as a rivet or a screw, so that the material cost of one rivet or screw is saved.
Further, one end of the worm wheel shaft is provided with a radial convex ring, the radial convex ring is tightly pressed on the end face of the end of the worm wheel, and the other end of the worm wheel shaft penetrates through the worm wheel, the backboard of the electric appliance base and the connecting plate and then is riveted on the outer side of the connecting plate. After the structure is adopted, the worm wheel shaft is also used as a rivet, the assembly is convenient, the positioning effect of the worm wheel is better, and the safety and the reliability of the automobile tail door lock are further ensured.
Drawings
Fig. 1 is a schematic view showing the structure of the emergency release lever in the automobile tail gate lock according to the present invention when the elastic strip is assembled.
Fig. 2 is a schematic structural view showing a state in which an elastic strip of an emergency release lever in an automobile tail door lock of the present invention is pressed.
Fig. 3 is a schematic view of a rear end connection structure when a gear shaft in the automobile tail door lock of the invention is also used as a rivet.
Fig. 4 is a schematic view of a method for determining the exact position of a second cylinder in an automobile door lock according to the present invention.
Fig. 5 is a schematic sectional view of the rear door lock of the present invention in which the gear shaft also serves as a rivet.
Fig. 6 is a schematic diagram of an exploded structure of the rear door lock of the present invention when the gear shaft is used as a rivet.
Fig. 7 is a schematic diagram of an explosion structure when the gear shaft in the automobile tail door lock of the invention is used as a rivet.
1, A lower starting point, 2, a shaft, 3, an emergency release lever body, 4, an elastic strip, 5, a cover, 6, a first cylinder, 7, an electric appliance base, 8, a base, 9, a second cylinder, 10, a connecting plate, 11, a worm wheel shaft, 12, a worm wheel, 13 and a radial convex ring.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings. It should be noted that the description of these embodiments is for aiding in understanding the present invention, but is not to be construed as limiting the invention. In addition, the technical features described in the following embodiments of the present invention may be combined with each other as long as they do not collide with each other.
The automobile tail door lock with the emergency release rod is characterized in that a motor arranged in an electric appliance base is electrified and then drives a release plate to dial leftwards or rightwards through a worm and a worm wheel to drive the release rod and a pawl which are arranged in the base and are coaxial to rotate, so that the restraint on a ratchet wheel is relieved, and the tail door lock is opened. The above structure is the same as the prior art, and therefore, the description is omitted.
The invention has the following points:
As shown in fig. 1 and 2
The invention relates to a car tail door lock with an emergency release rod, which comprises an emergency release rod body 3 of the emergency release rod hinged on a cover 5 through a shaft 2 and a first cylinder 6 which is arranged on the cover 5 and abuts against an elastic strip 4 of the emergency release rod. The elastic strip 4 is arc-shaped, the center position of the first cylinder 6 is not lower than 1/3 of the length of the elastic strip 4 from the end face of the free end downwards when the elastic strip 4 is in a natural state, and the distance from the tangent point of the first cylinder 6 and the elastic strip 4 to the rightmost edge of the emergency release rod body 3 is smaller than the distance from the tangent point to the rightmost edge of the emergency release rod body 3 when the elastic strip 4 is in a natural state when the elastic strip 4 is in an assembled state. In other words, the position of the first cylinder 6 on the cover 5 generally holds two principles: the elastic strip 4 moves to the maximum travel position without being separated from the first cylinder; when the elastic strip is in an assembled state, the first cylinder 6 applies pressure to the elastic strip 4, namely initial pressure is applied, and the main function is that the elastic strip 4 does not shake and is noiseless, and a certain elastic restoring force is applied.
The free end of the elastic strip 4 is bent towards the emergency release rod body 3. The elastic strip 4 extends continuously from the root to the end face of the free end from the thickness to the thinness.
The automobile door lock with the emergency release rod further comprises a second cylinder 9 which is arranged on the cover 5 and is used for propping against the elastic strip 4, the center of the second cylinder 9 is positioned in a side line of the emergency release rod body 3, which is close to the center of the plumb line of the center of the first cylinder 6, and when the automobile door lock is in an assembled state, a gap is reserved between the outer circumferential surface of the second cylinder 9 and the elastic strip 4.
As shown in fig. 4
The exact position of the second cylinder 9 on the cover 5 can be determined by the following mapping method:
① . A connecting line A of the center of the shaft 2 and the first cylinder 6 is used as a connecting line;
② . Taking the center of the first cylinder 6 as an axis, rotating clockwise to 11.3-16.7 degrees with the angle of the A wire clamp to obtain a B wire, and intersecting the B wire with the first cylinder 6 at the point A;
③ . A connecting line C line from the point C of the lower starting point of the elastic strip 4 to the point A is made;
④ . A vertical bisector of the C line is made;
⑤ . Finding out an intersection point B of the perpendicular bisector and the B line;
⑥ . Taking the point B as a circle center, and taking the points B to C or the points B to A as radiuses to draw a circular arc;
⑦ . The second cylinder 9 can be arranged outside the arc line between the point A and the point C, and any point on the arc line can be used as the tangent point between the second cylinder 9 and the arc line.
The lower starting point C is also referred to as lower starting point 1, i.e. also denoted 1 in the figure.
The second cylinder 9 is preferably arranged on the intersection of the perpendicular bisector and the circular arc or outside the circular arc within 20mm on both sides of the perpendicular bisector, and any point on the circular arc can be used as the tangent point of the second cylinder 9 and the circular arc. In other words, the second cylinder 9 is preferably disposed outside the arc line within 20mm of each side of the perpendicular bisector, and any point on the arc line may be the tangent point between the second cylinder 9 and the arc line. The second cylinder 9 is preferably located near the intersection of the perpendicular bisector and the circular arc.
As shown in fig. 3, 5, 6 and 7
The worm wheel shaft 11 may also function as a rivet or screw (not shown in the structure of the screw). Both ends of the worm wheel shaft 11 are fixed with the worm wheel 12 and the connecting plate 10 of the base 8. That is, one end of the worm wheel shaft 11 has a radial convex ring 13, the radial convex ring 13 is pressed against the end face of the end of the worm wheel 12, and the other end of the worm wheel shaft 11 is riveted outside the connecting plate 10 after passing through the back plate of the worm wheel 12 and the electric appliance base 7 and the connecting plate 10. The connection plate 10 may also be referred to as a riser of the base 8. It will be appreciated that the electrical base 7 is typically secured to the cover 5 by a male-female snap or screw-fit. The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a car tail door lock with emergency release pole, includes emergency release pole body (3) that warp beam (2) articulated on shroud (5) and establishes on shroud (5) first cylinder (6) that offset with emergency release pole's elastic strip (4), its characterized in that: the elastic strip (4) is arc-shaped, the center position of the first cylinder (6) is not lower than 1/3 of the length of the elastic strip (4) from the end face of the free end downwards when the elastic strip (4) is in a natural state, and the distance from the tangent point of the first cylinder (6) and the elastic strip (4) to the rightmost edge of the emergency release rod body (3) is smaller than the distance from the tangent point to the rightmost edge of the emergency release rod body (3) when the elastic strip (4) is in a natural state when the elastic strip is in an assembled state;
the free end of the elastic strip (4) is bent towards the emergency release rod body (3);
The emergency release rod also comprises a second cylinder (9) which is arranged on the cover cap (5) and is used for propping against the elastic strip (4), the center of the second cylinder (9) is positioned in a side line of the emergency release rod body (3) near the plumb line of the center of the first cylinder (6), and when the emergency release rod body is in an assembling state, a gap is reserved between the outer circumferential surface of the second cylinder (9) and the elastic strip (4);
The exact position of the second cylinder (9) on the cover (5) is determined by the following mapping method:
① . A connecting line A of the center of the shaft (2) and the first cylinder (6) is used as a connecting line;
② . Taking the center of the first cylinder (6) as an axis, rotating clockwise to 11.3-16.7 degrees with the angle of the A wire to obtain a B wire, and intersecting the B wire with the first cylinder (6) at the point A;
③ . A connecting line C line from the lower starting point C point to the point A of the elastic strip (4);
④ . A vertical bisector of the C line is made;
⑤ . Finding out an intersection point B of the perpendicular bisector and the B line;
⑥ . Taking the point B as a circle center, and taking the points B to C or the points B to A as radiuses to draw a circular arc line;
⑦ . A second cylinder (9) can be arranged on the outer side of the circular arc line between the point A and the point C, and any point on the circular arc line can be used as a tangent point between the second cylinder (9) and the circular arc line;
the second cylinder (9) is arranged on the intersection point of the perpendicular bisector and the circular arc line or outside the circular arc line within 20mm on two sides of the perpendicular bisector.
2. The vehicle tail gate lock with emergency release lever of claim 1, wherein: the elastic strip (4) extends continuously from the root to the end face of the free end from the thickness to the thinness.
3. The vehicle tail gate lock with emergency release lever of claim 1, wherein: the worm wheel shaft (11) is also used as a rivet or a screw, and two ends of the worm wheel shaft are fixed with the worm wheel (12) and the connecting plate (10) of the base (8).
4. A vehicle tail gate lock with emergency release lever as set forth in claim 3, wherein: one end of the worm wheel shaft (11) is provided with a radial convex ring (13), the radial convex ring (13) is tightly pressed on the end face of the end of the worm wheel (12), and the other end of the worm wheel shaft (11) penetrates through the back plate of the worm wheel (12) and the electric appliance base (7) and the connecting plate (10) and then is riveted on the outer side of the connecting plate (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910546867.XA CN110130752B (en) | 2019-06-24 | 2019-06-24 | Automobile tail door lock with emergency release lever |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910546867.XA CN110130752B (en) | 2019-06-24 | 2019-06-24 | Automobile tail door lock with emergency release lever |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110130752A CN110130752A (en) | 2019-08-16 |
| CN110130752B true CN110130752B (en) | 2024-06-25 |
Family
ID=67579078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910546867.XA Active CN110130752B (en) | 2019-06-24 | 2019-06-24 | Automobile tail door lock with emergency release lever |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110130752B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101583149B1 (en) * | 2014-08-11 | 2016-01-07 | 평화정공 주식회사 | Emergency lever apparatus of tailgate latch for vehicles |
| CN210422231U (en) * | 2019-06-24 | 2020-04-28 | 宁波市勇博车业有限公司 | Automobile tail door lock with emergency release lever |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100594700B1 (en) * | 2004-11-08 | 2006-06-30 | 평화정공 주식회사 | Emergency exit handle of automobile trunk |
| CN108678575B (en) * | 2018-06-04 | 2023-07-21 | 伟速达（中国）汽车安全系统有限公司 | Electric attraction lock with emergency unlocking device |
| CN208650682U (en) * | 2018-07-20 | 2019-03-26 | 上汽通用五菱汽车股份有限公司 | Tail-gate locks emergency opening structure and vehicle |
-
2019
- 2019-06-24 CN CN201910546867.XA patent/CN110130752B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101583149B1 (en) * | 2014-08-11 | 2016-01-07 | 평화정공 주식회사 | Emergency lever apparatus of tailgate latch for vehicles |
| CN210422231U (en) * | 2019-06-24 | 2020-04-28 | 宁波市勇博车业有限公司 | Automobile tail door lock with emergency release lever |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110130752A (en) | 2019-08-16 |
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