CN102019906B - Steering shaft lock - Google Patents
Steering shaft lock Download PDFInfo
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- CN102019906B CN102019906B CN200910190314A CN200910190314A CN102019906B CN 102019906 B CN102019906 B CN 102019906B CN 200910190314 A CN200910190314 A CN 200910190314A CN 200910190314 A CN200910190314 A CN 200910190314A CN 102019906 B CN102019906 B CN 102019906B
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Abstract
A steering shaft lock comprises a lock body, an end cover, a drive source, a worm and a gear assembly, wherein one end of the lock body is provided with an opening and the end cover covers the opening of the lock body; the drive source is installed on the end cover; the worm is installed on a drive shaft of the drive source and can rotate along the drive shaft; and the gear assembly is supported on the end cover in a rotatable manner and is meshed with the worm. The steering shaft lock also comprises a lock rod and a transfer mechanism, wherein the transfer mechanism transfers the power of the drive source to the lock rod; the lock body is provided with a locking hole; the lock rod is limited in the locking hole and can reciprocate in a straight line between the position of locking and the position of unlocking; the transfer mechanism comprises a threaded rod; one end of the threaded rod is provided with an external thread or an internal thread and the other end thereof is provided with a pin roll; the threaded rod is connected with the lock rod by the pin roll; the gear assembly comprises a gear and a gear rotating shaft supporting the gear; the gear rotating shaft is provided with an internal thread or an external thread which is installed by being matched with the external thread or the internal thread of the threaded rod to drive the threaded rod; and the threaded rod is limited by the lock rod to reciprocate in a straight line along own axis.
Description
Technical field
The invention belongs to a kind of annex of vehicle, relate more specifically to a kind of steering shaft lock.
Background technology
On automobile, steering shaft lock is used for the locking steering shaft.Steering shaft by locking after, automobile can not turn to, even there is the people illegally to start automobile into the car, but since automobile can not turn to, can not automobile be driven away, so steering shaft lock has played theft-proof effect.
Present steering shaft lock generally all is electrically operated, promptly by the motor-driven transmission device, locking bar on the steering shaft lock is stretched out and hang with steering shaft and close, and realizes the locking of steering shaft; Perhaps, realize the release of steering shaft from the steering shaft withdrawal.Like a kind of steering shaft lock in the prior art; Comprise lock body, drive division (motor), S. A., lock dog, locking bar and axle sleeve; Said S. A. utilizes the rotary driving force of above-mentioned drive division to be rotated through gear mechanism, and said lock dog is through combining with above-mentioned S. A. screw thread and rotate, and on axial direction, moves; Said locking bar moves through lock dog; And between the lockset position of coupler of latched position that steering shaft is locked and releasing locking, move, said axle sleeve has supporting part, installation portion claw and bearing claw, and this supporting part is by at least one axial load of bearing above-mentioned S. A. of bringing in of above-mentioned S. A.; Claw is installed through being mounted in the chimeric hole portion that is inserted into above-mentioned lock body, the outer diameter part of this bearing claw and above-mentioned S. A. is rotatable chimeric slidably and bear radial weight.Above-mentioned steering shaft lock can be realized the locking of steering shaft and the operation of releasing locking by failure-free; But its two ends at S. A. need be provided with the baroque axle sleeve that is used for supporting rotating shaft; Need also that for this reason corresponding structure is set and be used to install described axle sleeve on the locking closure of lock body; So cause whole steering shaft lock parts to increase, complex structure, process and assemble is difficulty comparatively.
Summary of the invention
The present invention is for solving the complex structure that above-mentioned steering shaft lock exists, and process and assemble is the problem of difficulty comparatively, and a kind of steering shaft lock simple in structure, that process and assemble is more or less freely is provided.
A kind of steering shaft lock provided by the invention comprises: lock body, end cap, drive source, worm screw and gear assembly, said lock body have the lock chamber of an end opening, and said end cap covers the opening of described lock body; Said drive source is arranged on the said end cap, and said worm screw is installed on the drive source drives axle and can be with drive shaft turns, said gear assembly be supported in rotationally end cap and and worm mesh; Said drive source, worm screw and gear assembly all are contained in the said lock chamber; Said steering shaft lock also comprises and combining with steering shaft and to steering shaft locking or the locking bar and the transmission mechanism that unlock, said transmission mechanism combine with the gear assembly screw thread and with the transmission of power of above-mentioned drive source to locking bar; Also be provided with a locking hole on the said lock body, said locking bar can be made linear reciprocation and be limited in movably in the said locking hole between the position of locking and releasing locking; Wherein, said transmission mechanism comprises thread rod, and said thread rod one end is provided with outside thread or negative thread, and the other end is provided with a bearing pin, and said thread rod is connected with locking bar through this bearing pin; Said gear assembly comprises a gear and the rotary gear shaft that supports said gear; This rotary gear shaft has negative thread or outside thread; And install to drive said thread rod with the outside thread of above-mentioned thread rod or screw-internal thread fit, said thread rod moves as linear reciprocation on its axis direction of the restriction lower edge of locking bar.
The invention has the beneficial effects as follows: because gear assembly directly combines with the thread rod screw thread; And thread rod is through the restriction of the locking bar that can only in locking hole, move as linear reciprocation; Directly move the rotatablely moving conversion between gear assembly and the thread rod for the answer along on its axis direction of thread rod; And then drive locking bar the moving back and forth of locking hole, realize the locking of steering shaft lock and remove the operation of locking.It is thus clear that steering shaft lock of the present invention has been realized the minimizing of parts, so that integral structure is simple, and it is more simple easy that process and assemble becomes.
Description of drawings
Fig. 1 is the exploded perspective view of a kind of embodiment of a kind of steering shaft lock of the present invention;
Fig. 2 is the structural representation of lock body of a kind of embodiment of a kind of steering shaft lock of the present invention;
Fig. 3 is the structural representation of lock body of a kind of embodiment of a kind of steering shaft lock of the present invention;
Fig. 4 is the structural representation of end cap of a kind of embodiment of a kind of steering shaft lock of the present invention;
Fig. 5 is the part-structure scheme drawing of a kind of embodiment of a kind of steering shaft lock of the present invention;
Fig. 6 is the structural representation of locking bar of a kind of embodiment of a kind of steering shaft lock of the present invention;
Fig. 7 be a kind of steering shaft lock of the present invention a kind of embodiment the structural representation of thread rod;
Fig. 8 is the cross-sectional schematic of a kind of embodiment of a kind of steering shaft lock of the present invention.
The specific embodiment
Clearer for technical matters, technical scheme and beneficial effect that the present invention is solved, below in conjunction with accompanying drawing and embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
In addition, need to prove, employed term and only be description of the invention for ease in description of the invention about the noun of position relation, and can not be interpreted as limitation of the present invention.
As one embodiment of the present invention, like Fig. 1, Fig. 4, Fig. 7 and shown in Figure 8, a kind of steering shaft lock comprises: lock body 1, end cap 2, drive source 3, worm screw 4, gear assembly; Said lock body 1 comprises the lock chamber 101 of an end opening, is formed with first installation portion 201 and second installation portion 202 on the surface of said end cap 2, and this surface is towards said lock chamber 101 and cover the opening of described lock body 1; Said drive source 3 is installed on first installation portion 201, and said worm screw 4 is installed on the axle drive shaft of drive source 3 and can rotates synchronously with axle drive shaft, said gear assembly be supported on rotationally on second installation portion 202 and with worm screw 4 engagements; Said drive source 3, worm screw 4 and gear assembly all are contained in the said lock chamber 101; Said steering shaft lock also comprises and combining with steering shaft and to steering shaft locking or the locking bar 5 and the transmission mechanism that unlock, said transmission mechanism combine with the gear assembly screw thread and with the transmission of power of above-mentioned drive source 3 to locking bar 5; Also be provided with a locking hole 102 on the said lock body 1, said locking bar 5 can be made linear reciprocation and be limited in movably in the said locking hole 102 between latched position and the position that unlocks, the effect that described locking hole 102 plays guiding and supports with locking bar 5; Wherein, said transmission mechanism comprises thread rod 6, and said thread rod 6 one ends are provided with outside thread or negative thread, and the other end is provided with a bearing pin 7, and said thread rod 6 is connected with locking bar 5 through this bearing pin 7; Said gear assembly comprises a gear 8 and the rotary gear shaft 9 that supports said gear 8; This rotary gear shaft 9 has negative thread or outside thread; And install to drive said thread rod 8 with the outside thread of above-mentioned thread rod 8 or screw-internal thread fit, said thread rod 8 moves back and forth on its axis direction of the restriction lower edge of locking bar 5.Embodiment of the present invention, said thread rod 6 adopts outside thread, and said rotary gear shaft 9 is set to negative thread; Described drive source 3 is a motor.Because gear assembly directly combines with thread rod 6 screw threads; And thread rod 6 is through the restriction of the locking bar 5 that can only in locking hole, move as linear reciprocation; Directly transform moving to rotatablely moving between gear assembly and the thread rod 6 for thread rod 6 along the answer of the straight line on its axis direction; And then drive locking bar 5 the moving back and forth of locking hole 102, and realize the locking of steering shaft lock and remove the operation of locking, realized the minimizing of parts; So that integral structure is simple, and it is more simple easy that process and assemble becomes.
Please consult Fig. 5 and Fig. 6 in the lump; As a kind of preferred implementation; Said transmission mechanism also comprises pilot bar 10; An end that is provided with bearing pin 7 of said thread rod 6 is captiveed joint with pilot bar 10, and said bearing pin 7 laterally runs through said pilot bar 10 and said pilot bar 10 is stretched out at its two ends, and is connected with said locking bar 5.Said locking bar 5 one ends have two wall extensions 502 that extend out from locking bar body 501 two sides; All have the waist shaped hole 503 that is provided with along said locking bar 5 sense of motions on said two wall extensions 502, said pilot bar 10 cooperates between the wall extension 502 that is connected in locking bar 5 movably with waist shaped hole 503 through bearing pin 7.
Said transmission mechanism also comprises first spring 14, and said locking bar body 501 rear ends that are positioned at are provided with a spring eye 504, and said first spring, 14 1 ends are replaced on said thread rod 6, and the other end inserts and replaces in above-mentioned spring eye 504.14 pairs of locking bars 5 of said first spring apply one all the time and push locking bar 5 to away from said thread rod 6 directions application force.
Please consult Fig. 2 and Fig. 3 in the lump; As a kind of preferred implementation; Said lock body 1 can also have supporting construction 13; The framed structure that said supporting construction 13 extends to form to said opening direction for locking hole 102 peripheries on said lock body 1; Said locking bar 5 is supported in the said supporting construction 13 with the sense of motion of pilot bar 10 along locking bar 5, and the end away from said locking hole 102 of said supporting construction 13 extends to the gear 8 that closes on said gear assembly, can play the position-limiting action along its axial direction to gear 8.Said supporting construction 13 comprises four sidewalls, can be defined as upper wall 137, diapire 138 and two vertical walls 139 respectively.Offer first passage 131 on one sidewall of said supporting construction 13 (being diapire 138); To the end that extends to this diapire 138 away from locking hole 102 directions, an end of said pilot bar 10 passes above-mentioned first passage 131 to said first passage 131 from said locking hole 102.
Said steering shaft lock also includes and is installed in the said lock chamber 101 and the said circuit board box 11 that offers the diapire 138 corresponding settings of first passage 131; On the said circuit board box 11 circuit card 12 is installed; And have first guide groove 111 with said first passage 131 corresponding settings on the said circuit board box 11, the end of an end that passes said first passage 131 of said pilot bar 10 is stretched in said first guide groove 111 movably.Described drive source 3 is electrically connected with the circuit card 12 of circuit board box 11.An end that cooperates with first guide groove 111 of said pilot bar 10 is equipped with the magnet that is used to detect pilot bar 10 positions.The setting of above-mentioned first passage 131 is to abdicate a space for an end of being equipped with magnet for said pilot bar 10; It can be stretched in first guide groove 111 of described circuit board box 11 through this first passage 131, be used to detect the current location of pilot bar 10.
The inboard and end that be positioned at away from said first passage 131 with the adjacent two vertical walls 139 of the said diapire of offering first passage 131 138 in said supporting construction 13 is respectively arranged with corresponding protruding 132.Be formed with the second channel 133 that supplies locking bar 5 to pass between two convexities 132 of said supporting construction 13 and the said first passage 131, said second channel 133 and said locking hole 102 over against and be communicated with.Form the stage portion 134 that supports said locking bar 5 between the second channel 133 of said supporting construction 13 and the first passage 131.Said protruding 132 are arranged at the leading portion part 1300 near said locking hole 102 of supporting construction 13 with stage portion 134.Except that described locking hole 102, the effect that described stage portion 134 can play guiding and support locking bar 5 more effectively is set.The top position that is positioned at second channel 133 of said supporting construction 13 (promptly deviating from a side that is provided with second guide channel) forms second guide groove 135, said second guide groove 135 extend to said locking hole 102 and be positioned at locking hole 102 directly over.Said second guide groove 135 is connected with first passage 131 and second channel 133, and said pilot bar 10 can be contained in wherein movably.
As shown in Figure 5, the other end that cooperates with first guide groove 11 of said pilot bar 10 is provided with guide wall 100, and said guide wall 100 is mounted slidably in said second guide groove 135.Being provided with of said second guide groove 135 can be carried out spacing and guiding to guide wall 100 on vertical direction and horizontal direction; Make said guide wall 100 that reciprocal moving can only take place on the sense of motion of said locking bar 5; And then make said pilot bar 10 that reciprocal moving can only be taken place on the sense of motion of said locking bar 5, and then make the locking bar 5 can only moving linearly.
As a kind of preferred implementation, said rotary gear shaft 9 one ends are supported in the gear rotation axis hole 2023 of said second installation portion 202, and the other end is provided with negative thread.Said gear 8 is preferably helical wheel.Equally, said gear 8 can be integrated with rotary gear shaft 9, also can be through combine and assemble together, and in this preferred implementation, gear 8 and rotary gear shaft 9 are in the same place through combine and assemble.
As a kind of preferred implementation; As shown in Figure 1; Said steering shaft lock also comprises and holding down assembly, and said holding down assembly comprise and be used to limit said gear 8 axially movable location lid 16 and second springs 17, and said second installation portion, 202 peripheries have at interval or the card platform 2020 of two protrusions of setting uniformly-spaced at least; Said location lid 16 is provided with the draw-in groove 160 that matches with said card platform 2020, and lid 16 engagings of said location are installed on said second installation portion 202.Said location lid 16 faces and is connected to said supporting construction 13 and between said gear 8 and said supporting construction 13.Said location lid 16 has a through hole 161, this through hole 161 that said rotary gear shaft 9 passes.
End with negative thread of said rotary gear shaft 9, thread rod 6 and second spring 17 can be contained in the back segment part 1301 away from said locking hole 102 of said supporting construction 13.Said second spring 17 is set on said rotary gear shaft 9 and the thread rod 6; Said second spring, 17 1 ends are replaced said location lid 16, and the other end is replaced between said leading portion part 1300 and the back segment part 1301 of said supporting construction 13 and is formed with second step portion 1302.17 pairs of said location of said second spring lid 16 applies an application force towards said second installation portion, 202 directions.Described holding down assembly can be carried out spacing to said gear assembly more effectively.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (15)
1. steering shaft lock, comprising: lock body, end cap, drive source, worm screw and gear assembly, said lock body have the lock chamber of an end opening, and said end cap covers the opening of described lock body; Said drive source is arranged on the said end cap, and said worm screw is installed on the drive source drives axle and can be with drive shaft turns, said gear assembly be supported in rotationally end cap and and worm mesh; Said drive source, worm screw and gear assembly all are contained in the said lock chamber;
Said steering shaft lock also comprises and combining with steering shaft and to steering shaft locking or the locking bar and the transmission mechanism that unlock, said transmission mechanism combine with the gear assembly screw thread and with the transmission of power of above-mentioned drive source to locking bar; Also be provided with a locking hole on the said lock body, said locking bar can be made linear reciprocation and be limited in movably in the said locking hole between the position of locking and releasing locking;
It is characterized in that: said transmission mechanism comprises thread rod, and said thread rod one end is provided with outside thread or negative thread, and the other end is provided with a bearing pin, and said thread rod is connected with locking bar through this bearing pin;
Said gear assembly comprises a gear and the rotary gear shaft that supports said gear; This rotary gear shaft has negative thread or outside thread; And install to drive said thread rod with the outside thread of above-mentioned thread rod or screw-internal thread fit, said thread rod moves as linear reciprocation on its axis direction of the restriction lower edge of locking bar;
Said lock body also has supporting construction; Offer first passage on one sidewall of said supporting construction, be respectively arranged with corresponding convexity at the inboard and end that be positioned at away from said first passage with the adjacent two side of the said sidewall of offering first passage of said supporting construction.
2. steering shaft lock as claimed in claim 1 is characterized in that: the framed structure that said supporting construction extends to form to said opening direction for the locking hole periphery on said lock body.
3. steering shaft lock as claimed in claim 2 is characterized in that said transmission mechanism also comprises pilot bar, and an end that is provided with bearing pin of said thread rod is captiveed joint with pilot bar, and said bearing pin laterally runs through said pilot bar and is connected with said locking bar; Said locking bar and pilot bar are supported in the said supporting construction along the sense of motion of locking bar movably.
4. steering shaft lock as claimed in claim 2 is characterized in that: the end away from said locking hole of said supporting construction extends to the gear that closes on said gear assembly.
5. steering shaft lock as claimed in claim 3 is characterized in that, to the end that extends to this sidewall away from the locking hole direction, an end of said pilot bar passes above-mentioned first passage to said first passage from said locking hole.
6. steering shaft lock as claimed in claim 5; It is characterized in that; Said steering shaft lock also includes and is installed in the said lock chamber and the said circuit board box that offers the corresponding setting of sidewall of first passage; First guide groove that has corresponding setting with said first passage on the said circuit board box, the end of an end that passes said first passage of said pilot bar is stretched in said first guide groove movably.
7. steering shaft lock as claimed in claim 3; It is characterized in that: said locking bar one end has two wall extensions that extend out from locking bar body two side; All have the waist shaped hole that is provided with along said locking bar sense of motion on said two wall extensions, said pilot bar cooperates between the wall extension that is connected in locking bar movably with waist shaped hole through bearing pin.
8. steering shaft lock as claimed in claim 3; It is characterized in that: said transmission mechanism also comprises first spring; Be positioned at said locking bar body rear end and be provided with a spring eye, said first spring, one end is replaced on said thread rod, and the other end inserts and replaces in above-mentioned spring eye.
9. steering shaft lock as claimed in claim 6 is characterized in that: be formed with the second channel that supplies locking bar to pass between the convexity of said supporting construction and the said first passage, said second channel and said locking hole over against and be communicated with; Form the stage portion that supports said locking bar between the second channel of said supporting construction and the first passage.
10. steering shaft lock as claimed in claim 9; It is characterized in that: the top position that is positioned at second channel of said supporting construction forms second guide groove; The other end that cooperates with first guide groove of said pilot bar is provided with guide wall, and said guide wall is mounted slidably in said second guide groove; Said second guide groove, first passage and second channel are connected.
11. steering shaft lock as claimed in claim 1 is characterized in that: said end cap is provided with first installation portion and second installation portion towards a side in lock chamber, and said drive source is installed on first installation portion; Said gear assembly is installed on second installation portion, and said rotary gear shaft one end is supported in the gear rotation axis hole of said second installation portion, and the other end is provided with the said negative thread or the outside thread of said rotary gear shaft.
12. steering shaft lock as claimed in claim 1 is characterized in that: said gear is a helical wheel.
13. steering shaft lock as claimed in claim 11; It is characterized in that: said steering shaft lock also comprises and holding down assembly; Said holding down assembly comprises that being used to limit the axially movable location of said gear covers and second spring, and said location lid is installed on said second installation portion and faces and is connected to said supporting construction, and said second spring housing is located on said rotary gear shaft and the thread rod; And the one of which end is replaced said location lid, and the other end is replaced said supporting construction.
14. steering shaft lock as claimed in claim 13 is characterized in that: said location lid have one supply said rotary gear shaft and thread rod to pass through hole.
15. steering shaft lock as claimed in claim 13 is characterized in that: the said second installation portion periphery has the Ka Tai of at least two protrusions that are provided with at interval, and said location covers and is provided with the draw-in groove that matches with said Ka Tai.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910190314A CN102019906B (en) | 2009-09-16 | 2009-09-16 | Steering shaft lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910190314A CN102019906B (en) | 2009-09-16 | 2009-09-16 | Steering shaft lock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102019906A CN102019906A (en) | 2011-04-20 |
| CN102019906B true CN102019906B (en) | 2012-09-26 |
Family
ID=43861802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910190314A Active CN102019906B (en) | 2009-09-16 | 2009-09-16 | Steering shaft lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102019906B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102632862A (en) * | 2012-05-08 | 2012-08-15 | 天合汽车零部件（苏州）有限公司 | Auxiliary mechanism for unlocking electronic steering column lock |
| CN109532473B (en) * | 2018-12-29 | 2024-02-13 | 重庆海德世拉索系统（集团）有限公司 | Door actuator of vehicle body energy source port |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0764566A1 (en) * | 1995-09-21 | 1997-03-26 | Valeo Securite Habitacle | Electrically driven vehicle steering lock |
| CN1727229A (en) * | 2004-07-29 | 2006-02-01 | 株式会社东海理化电机制作所 | Steering lock |
| CN101130358A (en) * | 2006-08-25 | 2008-02-27 | 株式会社东海理化电机制作所 | Magnet-holding structure for magnetic position detector and steering lock apparatus |
-
2009
- 2009-09-16 CN CN200910190314A patent/CN102019906B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0764566A1 (en) * | 1995-09-21 | 1997-03-26 | Valeo Securite Habitacle | Electrically driven vehicle steering lock |
| CN1727229A (en) * | 2004-07-29 | 2006-02-01 | 株式会社东海理化电机制作所 | Steering lock |
| CN101130358A (en) * | 2006-08-25 | 2008-02-27 | 株式会社东海理化电机制作所 | Magnet-holding structure for magnetic position detector and steering lock apparatus |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2002-283964A 2002.10.03 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102019906A (en) | 2011-04-20 |
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