CN202371067U - Anti-loosening locking device for manual brake adjusting arm - Google Patents
Anti-loosening locking device for manual brake adjusting arm Download PDFInfo
- Publication number
- CN202371067U CN202371067U CN2011205431072U CN201120543107U CN202371067U CN 202371067 U CN202371067 U CN 202371067U CN 2011205431072 U CN2011205431072 U CN 2011205431072U CN 201120543107 U CN201120543107 U CN 201120543107U CN 202371067 U CN202371067 U CN 202371067U
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- worm screw
- steel ball
- worm
- locking
- hole
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Abstract
An anti-loosening locking device for a manual brake adjusting arm comprises a casing, a worm, a worm adjusting shaft, a quincuncial sleeve, a spring, a big steel ball and small steel balls, and also comprises a locking bolt with a conical end socket, wherein the spring, the big steel ball and the small steel balls are arranged in a worm adjusting shaft hole; the locking bolt is used for locking the worm adjusting shaft; the locking bolt can be manually matched in a central blind hole above the small steel balls along the axial direction of the worm adjusting shaft in an up-and-down adjusting manner; and the small steel balls are fixedly pressed and maintained in a vertical groove of the quincuncial sleeve by the conical end socket of the locking bolt locked in position. The anti-loosening locking bolt is additionally arranged on an adjusting arm in the prior art to form the manual adjusting arm provided by the utility model, the conical surface at the lower end socket of the locking bolt squeezes small steel balls at the two sides to enable the small steel balls to be firmly clamped in the groove of the quincuncial sleeve, so that the worm pair transmission mechanism of the whole adjusting arm is fastened, the looseness probability of the worm pair transmission mechanism is avoided, the effects of safety and insurance are realized, when the locking bolt is loosened, the adjusting arm can recover the normal gap adjustment of the automobile brake, and further, the anti-loosening locking device for the manual brake adjusting arm is concise in structure, convenient in use and low in manufacturing cost.
Description
Technical field
The utility model relates to a kind of hand regulation arm, is meant a kind of locking locking device of manual brake adjustment arm specifically.
Background technique
The raising of Along with people's quality of life; Automobile is more and more universal, and automobile can vibrate unavoidably under steam and jolt, and often causes loosening perhaps its position of adjustment arm thus and circles round; Thereby influence the braking effect of automobile, the driver has to often the adjustment arm adjusted.
At present, existing hand regulation arm all is employed in to be loaded onto spring, steel ball and carries out braking gap adjustment location in the worm shaft, but this method generally do not possess can locking locking function.Publication number is that the Chinese patent of 201705843U discloses a kind of durability hand regulation arm; Comprise adjustment arm housing, worm screw, worm screw pin and plum-blossom sleeve, six square nut ends of worm screw pin are drilled with blind hole and the through hole vertical with blind hole, and pressure spring, big steel ball, little steel ball and chock plug are housed in the blind hole successively; Big steel ball withstands two interior little steel balls of groove that symmetry is installed in through hole and plum-blossom sleeve; Make location in its groove that snaps in plum-blossom sleeve respectively, though this structure can make the worm shaft location, the elastic force of spring is limited after all; Only lean on spring also not enough so that two little steel ball extrapolation lockings; The vibration that automobile produces when walking possibly make the steel ball resilience of spring force location, and change the modulated arm angle braking effect of adjusting well.
Also occurred the adjustment arm of some locking lockings on the market, its method is: open a locking hole in existing adjustment arm side, and interior placement latch, and with clamping piece latch is compressed, this structural adjustment inconvenience and its manufacture cost are higher.What a kind of adjustment with low cost, convenient was provided at present can locking locking hand regulation arm.
Summary of the invention
The utility model provides a kind of locking locking device of manual brake adjustment arm, has problems such as above-mentioned deficiency to solve existing hand regulation arm.
The utility model adopts following technological scheme:
A kind of locking locking device of manual brake adjustment arm comprises housing, is equiped with worm screw in the housing, the corresponding mounting hole that connects with inner bore of worm that offers on the housing; The lower end of worm screw adjustment axle passes that mounting hole cooperates with worm screw, the upper end is located in the mounting hole; Worm screw adjustment axle end face middle part offers central blind hole; The sidewall middle part of central blind hole offers radial direction through hole, is equipped with little steel ball in the radial direction through hole, and the mounting hole upper end-hole becomes the expansion section; This expansion section internal fixation is arranged with the plum-blossom sleeve that cooperates with little steel ball, and plum-blossom sleeve is provided with a plurality of vertical grooves; Be equiped with spring and big steel ball in the central blind hole of little steel ball below; This adjustment arm also comprises the lock bolt of the band cone-shaped end that is used to lock worm screw adjustment axle; This lock bolt enable manual along worm screw adjustment axle axially up and down adjustment ground be engaged in the central blind hole of said little steel ball top, the cone-shaped end of the lock bolt after putting in place that locks with said little steel ball fixedly pressure holding in the vertical groove of plum-blossom sleeve.
Above-mentioned vertical groove is even number and is at least 8 that vertical groove is evenly arranged on the said plum-blossom sleeve.
The lower end of above-mentioned worm screw adjustment axle is provided with an annular groove, and above-mentioned inner bore of worm sidewall is provided with the stopping pin-and-hole that cooperates with annular groove.
As a kind of preferred version, two drift angles of above-mentioned lock bolt cone-shaped end are 1.5 * 45 ° of chamfering settings, and the conical surface of cone-shaped end was tangent with said little steel ball respectively after locking put in place.
Further, attack thread section on the upper end portion madial wall of above-mentioned worm screw adjustment axle, between this thread section and the radial direction through hole spacing is arranged, the corresponding site of said lock bolt is provided with the screw thread that cooperates with this thread section.
Above-mentioned lock bolt comprises an outer-hexagonal headpin, is provided with a seal ring between this headpin lower end surface and the worm screw adjustment axle upper-end surface.
Again further, said worm screw adjustment axle comprises a hexagonal headpin, is provided with an elastic caoutchouc dust ring between this hexagonal headpin lower end surface and the plum-blossom sleeve.
Can be known by above-mentioned description to the utility model structure, compare with existing technology, the utlity model has following advantage: this structure has been utilized the adjustment orientation type of the existing spring of former hand regulation arm, big steel ball, little steel ball, plum-blossom sleeve combination; Install locking lock bolt additional and form locking locking device, big steel ball promotes little steel ball to both sides under the spring force effect, let little steel ball card go in the groove of plum-blossom sleeve; Thereby to the adjustment location of worm screw adjustment axle, manually tighten locking nut immediately, the conical surface of this screw lower end and two little steel balls are tangent; Push little steel ball to both sides; Make in its groove that firmly snaps in plum-blossom sleeve, reached the purpose of locking locking, improved the safety reliability of hand regulation arm greatly; And structure is simplified, and is cheap.
Description of drawings
Fig. 1 is the structural representation of the utility model adjustment arm;
Fig. 2 is the amplification view of A portion among Fig. 1;
Fig. 3 is the schematic representation after the lock bolt among Fig. 2 unscrews;
Fig. 4 is the utility model mounting hole cross sectional representation.
Embodiment
The embodiment of the utility model is described with reference to the accompanying drawings.
A kind of hand regulation arm that can locking locking with reference to Fig. 1, comprises housing 1, is equiped with worm screw 11 in the housing 1, the corresponding mounting hole 12 that connects with worm screw 11 endoporus that offers on the housing 1; The lower end of worm screw adjustment axle 13 passes that mounting hole 12 cooperates with worm screw 11, the upper end is located in the mounting hole 12, and this worm screw is adjusted a lower end of spools 13 and is provided with an annular groove 131, and worm screw 11 endoporus sidewalls are provided with the stopping pin-and-hole 132 that cooperates with annular groove 131; With reference to Fig. 2 or Fig. 3; Worm screw adjustment axle 13 end faces middle part offers central blind hole 14; The sidewall middle part of central blind hole 14 offers radial direction through hole 141; Be equipped with two little steel balls 15 in the radial direction through hole 141, the upper end-hole of mounting hole 12 becomes the expansion section, and this expansion section internal fixation is arranged with the plum-blossom sleeve 121 that cooperates with little steel ball 15; With reference to Fig. 4, plum-blossom sleeve 121 is provided with at least 8 vertical grooves 122, and vertical groove 122 is even number and is evenly arranged on the plum-blossom sleeve 121.
Continuation is with reference to Fig. 2 or Fig. 3; Be equiped with spring 16 and big steel ball 17 in the central blind hole 14 of little steel ball 15 belows; This hand regulation arm also comprises the lock bolt 18 of the band cone-shaped end 181 that is used to lock worm screw adjustment axle 13; Lock bolt 18 enable manual axially are engaged in the central blind hole 14 of said little steel ball 15 tops to adjustment up and down along worm screw adjustment axle 13; The cone-shaped end 181 of the lock bolt 18 of locking after putting in place is with the fixedly pressure holding in the vertical groove 122 of plum-blossom sleeve 121 (like Fig. 2, shown in Figure 4) respectively of said little steel ball 15, and cone-shaped end 181 hardness of local high-frequency processing after modified is 58～63 °, and its hardness is suitable with little steel ball 15; Improve the working life of product, guaranteed quality of product; As a kind of preferable scheme, two drift angles of the cone-shaped end 181 of said lock bolt 18 are 1.5 * 45 ° of chamfering settings, and put in place the conical surface of back cone-shaped end 181 of locking is tangent with said little steel ball 15 respectively.
With reference to Fig. 2, worm screw adjustment axle 13 comprises a hexagonal headpin, and the adopt international standards quenching and tempering hardness of M12 of hexagonal headpin is 28～32 °, is provided with an elastic caoutchouc dust ring 133 between this hexagonal headpin lower end surface and the plum-blossom sleeve 121; Attack thread section on the upper end portion madial wall of worm screw adjustment axle 13, between this thread section and the radial direction through hole 141 spacing is arranged, the corresponding site of lock bolt 18 is provided with the screw thread that cooperates with this thread section; Lock bolt 18 comprises the outer-hexagonal headpin 182 of a model international standard M10, is provided with a seal ring 183 between these headpin 182 lower end surfaces and worm screw adjustment axle 13 upper-end surfaces.
The working principle of this hand regulation arm is: manually rotary worm adjustment axle 13 carries out the adjustment in automobile brake system gap, and adjustment finishes, and worm screw adjustment axle 13 is therein under heart blind hole 14 inner springs 16 thrust; Promote big steel ball 17, big steel ball 17 promotes little steel ball 15 to both sides, and little steel ball 15 is snapped in the vertical groove 122 of plum-blossom sleeve 121; Thereby carried out the location of worm screw adjustment axle 13, manually tightened the lock bolt 18 of worm screw adjustment axle 13 upper ends immediately, the conical surface of the cone-shaped end 181 of this bolt 18 and two little steel balls 15 are tangent; Pushing little steel ball 15 to both sides makes in its groove that firmly snaps in plum-blossom sleeve 121 122; Thereby the fastening worm gear pairs driving mechanism of whole adjustment arm, automobile vibration when walking is much arbitrarily, and little steel ball can not become flexible; Reach the purpose of locking locking, played the security insurance effect.As long as unscrew the lock bolt 18 of worm screw adjustment axle 13 upper ends, just can carry out the adjustment in normal braking automobile gap.
The hand regulation arm of the utility model simple in structure, cheap, easy to use, functional eliminated automobile brake system in the hidden danger of hand regulation arm aspect safe in utilization.
The above-mentioned embodiment that is merely the utility model, but the design concept of the utility model is not limited thereto allly utilizes this design that the utility model is carried out the change of unsubstantiality, all should belong to the behavior of invading the utility model protection domain.
Claims (7)
1. the locking locking device of a manual brake adjustment arm comprises housing, is equiped with worm screw in the housing, the corresponding mounting hole that connects with inner bore of worm that offers on the housing; The lower end of worm screw adjustment axle passes that mounting hole cooperates with worm screw, the upper end is located in the mounting hole; Worm screw adjustment axle end face middle part offers central blind hole; The sidewall middle part of central blind hole offers radial direction through hole, is equipped with little steel ball in the radial direction through hole, and the mounting hole upper end-hole becomes the expansion section; This expansion section internal fixation is arranged with the plum-blossom sleeve that cooperates with little steel ball, and plum-blossom sleeve is provided with a plurality of vertical grooves; Be equiped with spring and big steel ball in the central blind hole of little steel ball below; It is characterized in that: also comprise being used to lock the lock bolt that worm screw is adjusted the band cone-shaped end of axle; This lock bolt enable manual along worm screw adjustment axle axially up and down adjustment ground be engaged in the central blind hole of said little steel ball top, the cone-shaped end of the lock bolt after putting in place that locks with said little steel ball fixedly pressure holding in the vertical groove of plum-blossom sleeve.
2. the locking locking device of a kind of manual brake adjustment arm according to claim 1 is characterized in that: said vertical groove is even number and is at least 8 that vertical groove is evenly arranged on the said plum-blossom sleeve.
3. the locking locking device of a kind of manual brake adjustment arm according to claim 1 is characterized in that: the lower end of said worm screw adjustment axle is provided with an annular groove, and said inner bore of worm sidewall is provided with the stopping pin-and-hole that cooperates with annular groove.
4. the locking locking device of a kind of manual brake adjustment arm according to claim 1; It is characterized in that: two drift angles of said lock bolt cone-shaped end are 1.5 * 45 ° of chamfering settings, and the conical surface of cone-shaped end was tangent with said little steel ball respectively after locking put in place.
5. the locking locking device of a kind of manual brake adjustment arm according to claim 1; It is characterized in that: attack thread section on the upper end portion madial wall of said worm screw adjustment axle; Between this thread section and the radial direction through hole spacing is arranged, the corresponding site of said lock bolt is provided with the screw thread that cooperates with this thread section.
6. the locking locking device of a kind of manual brake adjustment arm according to claim 1, it is characterized in that: said lock bolt comprises an outer-hexagonal headpin, is provided with a seal ring between this headpin lower end surface and the worm screw adjustment axle upper-end surface.
7. the locking locking device of a kind of manual brake adjustment arm according to claim 1 is characterized in that: said worm screw adjustment axle comprises a hexagonal headpin, is provided with an elastic caoutchouc dust ring between this hexagonal headpin lower end surface and the plum-blossom sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205431072U CN202371067U (en) | 2011-12-22 | 2011-12-22 | Anti-loosening locking device for manual brake adjusting arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205431072U CN202371067U (en) | 2011-12-22 | 2011-12-22 | Anti-loosening locking device for manual brake adjusting arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202371067U true CN202371067U (en) | 2012-08-08 |
Family
ID=46594771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205431072U Expired - Fee Related CN202371067U (en) | 2011-12-22 | 2011-12-22 | Anti-loosening locking device for manual brake adjusting arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202371067U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537153A (en) * | 2011-12-22 | 2012-07-04 | 晋江市万宏汽车部件有限公司 | Manual braking adjusting arm looseness-preventing and locking device |
| CN103644226A (en) * | 2013-12-25 | 2014-03-19 | 李文平 | Structurally improved manual adjustment arm capable of automatically locating deadlock |
| CN106984843A (en) * | 2017-05-25 | 2017-07-28 | 中信戴卡股份有限公司 | A kind of device for being used to position |
-
2011
- 2011-12-22 CN CN2011205431072U patent/CN202371067U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537153A (en) * | 2011-12-22 | 2012-07-04 | 晋江市万宏汽车部件有限公司 | Manual braking adjusting arm looseness-preventing and locking device |
| CN103644226A (en) * | 2013-12-25 | 2014-03-19 | 李文平 | Structurally improved manual adjustment arm capable of automatically locating deadlock |
| CN103644226B (en) * | 2013-12-25 | 2015-12-09 | 李文平 | A kind of architecture advances can the dead hand regulation arm of automatic positioning lock |
| CN106984843A (en) * | 2017-05-25 | 2017-07-28 | 中信戴卡股份有限公司 | A kind of device for being used to position |
| CN106984843B (en) * | 2017-05-25 | 2019-09-27 | 中信戴卡股份有限公司 | A kind of device used for positioning |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120808 Termination date: 20141222 |
|
| EXPY | Termination of patent right or utility model |