CN211009485U - Automobile hand brake disc adjusting screw with pre-tightening function - Google Patents
Automobile hand brake disc adjusting screw with pre-tightening function Download PDFInfo
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- CN211009485U CN211009485U CN201920841939.9U CN201920841939U CN211009485U CN 211009485 U CN211009485 U CN 211009485U CN 201920841939 U CN201920841939 U CN 201920841939U CN 211009485 U CN211009485 U CN 211009485U
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- screw head
- brake disc
- hand brake
- adjusting screw
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Abstract
The utility model provides an automobile hand brake disc adjusting screw with pre-tightening function, which comprises a threaded rod, wherein an oil duct coaxial with the threaded rod is arranged inside the threaded rod, a plurality of oil outlets communicated with the oil duct are arranged on the outer side wall of the threaded rod, a screw head is arranged at one end of the threaded rod, an outer thread section is arranged on the outer side wall of the screw head, a limiting nut is screwed on the outer thread section, an inner thread section matched with the outer thread section is arranged on the inner circumference of the limiting nut, a plurality of anti-skid corrugated ribs arranged in an annular shape are arranged on the end surface of one end of the screw head, a first concave platform is arranged at the other end of the screw head, a second concave platform is arranged at the bottom of the first concave platform, both side walls of the second concave platform are trapezoidal surfaces, an installation groove is arranged at the bottom of the second concave platform, a cross groove for pre-tightening the threaded rod is arranged at the, the utility model has the characteristics of can carry out the pretension, fastening reliability is high, installation and subsequent dismantlement are convenient, and the safety in utilization is high, long service life.
Description
Technical Field
The utility model belongs to the technical field of the car technique and specifically relates to a car manual brake dish adjusting screw with pretension function is related to.
Background
At present, with the development of economy, automobiles become an essential part in daily life of people, an automobile hand brake disc is an auxiliary brake system of a vehicle brake system, mainly used for preventing the vehicles from automatically sliding when parking, and the principle of the automobile hand brake disc is that the automobile hand brake disc is connected to a rear brake shoe through a parking steel wire pull wire to brake the rear wheels of the automobiles. Wherein in order to enable the hand brake disc to realize the braking effect, the hand brake disc needs to be reliably fixed on the rear wheel of the automobile through the adjusting screw rod.
However, the conventional adjusting screw mainly has the following problems: firstly, after the screw is used for a long time, the adjusting screw and the threaded hole are easy to rust, so that the adjusting screw cannot be smoothly screwed out; and secondly, the adjusting screw rod is easy to move when the special spanner is rotated in the screwing or unscrewing process, and the adjusting screw rod cannot be screwed or unscrewed at one time.
Therefore, an adjusting screw with a pre-tightening function for a hand brake disc of an automobile is needed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides an automobile manual brake dish adjusting screw with pretension function has and to carry out the pretension, and the fastening reliability is high, and installation and subsequent dismantlement are convenient, and the safety in utilization is high, long service life's characteristics.
The technical scheme of the utility model is realized like this:
the automobile hand brake disc adjusting screw with the pre-tightening function comprises a threaded rod, wherein an oil duct coaxial with the threaded rod is arranged inside the threaded rod, a plurality of oil outlet holes communicated with the oil duct are formed in the outer side wall of the threaded rod, a screw head is arranged at one end of the threaded rod, an outer thread section is arranged on the outer side wall of the screw head, a limiting nut is screwed on the outer thread section, an inner thread section matched with the outer thread section is arranged on the inner circumference of the limiting nut, a plurality of anti-skidding convex corrugated ribs which are annularly arranged are arranged on the end face, close to one end of the threaded rod, of the screw head, a first concave platform is arranged at the other end of the screw head, a second concave platform is arranged at the bottom of the first concave platform, two side walls of the second concave platform are trapezoidal surfaces, the two trapezoidal surfaces are oppositely arranged, a mounting groove is arranged at the bottom of the second concave platform, and a cross-shaped groove for pre-, and an oil inlet hole communicated with the oil duct is formed in the middle of the cross-shaped groove.
As a preferred technical scheme, the screw head is a conical table, and the other end of the screw head is an arc convex surface or a plane.
As a preferable technical scheme, two side walls of the first concave station are inclined planes or arc-shaped surfaces which are obliquely arranged.
As a preferable technical scheme, two sides of each trapezoidal surface are respectively provided with a beveled cambered surface.
By adopting the technical scheme, the beneficial effects of the utility model are that:
because the adjusting screw rod of the automobile hand brake disc with the pre-tightening function comprises a threaded rod, a screw head and a limit nut, when in use, firstly, the cross groove at the bottom of the second concave station is screwed by a tool to drive the threaded rod to pre-tighten the hand brake disc and the automobile rear wheel, then the special spanner is inserted into the second concave station, the limit nut is screwed into the screw head, the special spanner is rotated to continuously screw the threaded rod, the adjustment screw rod is used for completely fastening the hand brake disc and the automobile rear wheel, the installation operation is simple and convenient, the relative movement between the hand brake disc and the automobile rear wheel hub caused by insufficient screwing of the adjustment screw rod at one time is avoided, the fastening reliability of the utility model is improved, simultaneously, when the hand brake disc is tightened for the second time, the special spanner is limited by the limiting nut, so that the rotating stability of the special spanner in the tightening process is ensured, and the fastening reliability of the hand brake disc is improved; be equipped with the oil outlet that oil duct and a plurality of and oil duct are linked together on the threaded rod, adjusting bolt is after being used for the fixed of manual brake dish and car rear wheel for a long time, and the threaded rod rusts easily and causes and can not twist out, when twisting out, lets in lubricating oil in the oil duct, and lubricating oil lubricates through the external screw thread of oil outlet to the threaded rod and the internal thread of screw hole for the threaded rod is conveniently twisted out, avoids causing the damage of adversary brake dish because can't twist out after using for a long time, has improved the utility model discloses the convenience of dismantlement and the security of use, thereby have prolonged the utility model discloses a life.
Because the end face of the screw close to one end of the threaded rod is provided with a plurality of anti-skidding ribs which are annularly arranged, the anti-skidding ribs are in contact with the surfaces of the automobile rear wheel hub and the automobile rear wheel hub, the friction coefficient between the screw end face and the surfaces of the hand brake disc and the automobile rear wheel hub is improved, and the phenomenon that the hand brake disc is unqualified to fasten and is dangerous due to relative rotation caused by sliding among the adjusting screw, the hand brake disc and the automobile rear wheel hub in the use process is avoided, so that the safety of the utility model in use is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a right side view of FIG. 1;
FIG. 3 is a left side view of FIG. 1;
FIG. 4 is a schematic structural view of another embodiment at A in FIG. 1;
fig. 5 is a schematic structural view of the middle threaded rod of the present invention;
fig. 6 is a schematic structural view of another embodiment at B in fig. 5.
Wherein: 1. a threaded rod; 2. an oil passage; 3. an oil outlet hole; 4. a screw head; 5. an external threaded section; 6. a limit nut; 7. an internal thread section; 8. slipperiness and corrugated resistance; 9. a first recessed land; 10. a second recessed land; 11. a trapezoidal surface; 12. installing a groove; 13. a cross-shaped groove; 14. an oil inlet hole; 15. a circular arc convex surface; 16. a plane; 17. a bevel; 18. an arc-shaped surface; 19. and chamfering an arc surface.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1-4, the adjusting screw for automobile handbrake with pre-tightening function comprises a threaded rod 1, an oil passage 2 coaxial with the threaded rod 1 is arranged inside the threaded rod 1, a plurality of oil outlets 3 communicated with the oil passage 2 are arranged on the outer side wall of the threaded rod 1, a screw head 4 is arranged at one end of the threaded rod 1, an external thread section 5 is arranged on the outer side wall of the screw head 4, a stop nut 6 is screwed on the external thread section 5, an internal thread section 7 matched with the external thread section 5 is arranged on the inner circumference of the stop nut 6, a plurality of anti-skid corrugated ribs 8 arranged in a ring shape are arranged on the end surface of the screw head 4 close to one end of the threaded rod 1, the anti-skid corrugated ribs 8 are in contact with the surface of the handbrake or the surface of the hub of the automobile rear wheel, the friction coefficient between the end surface of the screw head 4 and the surfaces of the automobile rear wheel and the handbrake is improved, and the relative rotation caused by sliding between the adjusting screw and, cause the manual brake dish fastening unqualifiedly and take place danger, thereby improved the utility model discloses the security that uses, the other end of spiral shell head 4 is equipped with first concave station 9, the bottom of first concave station 9 is equipped with second concave station 10, the both sides wall of second concave station 10 is trapezoidal face 11, two trapezoidal faces 11 set up relatively, the bottom of second concave station 10 is equipped with mounting groove 12, the bottom of mounting groove 12 is equipped with the cross recess 13 that is used for pretension threaded rod 1, the middle part of cross recess 13 is equipped with the inlet port 14 that is linked together with oil duct 2.
Wherein, the screw head 4 is a conical table, and the other end of the screw head 4 is an arc convex surface 15 or a plane 16.
As shown in fig. 5 and 6, two side walls of the first concave platform 9 are inclined surfaces 17 or arc surfaces 18 which are obliquely arranged.
In addition, a chamfered arc surface 19 is respectively arranged on both sides of each trapezoidal surface 11.
When the hand brake disc tightening device is used, firstly, the cross-shaped groove 13 at the bottom of the second concave table 10 is screwed by a tool, the threaded rod 1 is driven to pre-tighten the hand brake disc and the rear wheel of the automobile, then the special spanner is inserted into the second concave table 10, the limiting nut 6 is screwed into the screw head 4, the threaded rod 1 is continuously screwed by rotating the special spanner, the hand brake disc and the rear wheel of the automobile are completely tightened by the adjusting screw rod, the mounting operation is simple and convenient, the relative movement between the hand brake disc and the hub of the rear wheel of the automobile caused by insufficient tightening of the adjusting screw rod at one time is avoided, and therefore, the tightening reliability of the utility model is improved; be equipped with oil duct 2 and the oil outlet 3 that a plurality of and oil duct 2 are linked together on the threaded rod 4, adjusting bolt is after being used for the fixed of manual brake dish and car rear wheel for a long time, threaded rod 1 rusts easily and causes and can not twist out, when twisting out, lets in lubricating oil in the oil duct 2, and lubricating oil lubricates the external screw thread of threaded rod 1 and the internal thread of screw hole through oil outlet 3 for threaded rod 1 conveniently twists out, avoids causing the damage of adversary brake dish because can't twist out after using for a long time, has improved the utility model discloses the convenience of dismantlement and the security of use, thereby has prolonged the utility model discloses a life.
To sum up, the utility model provides an automobile hand brake dish adjusting screw with pretension function has and to carry out the pretension, and the fastening reliability is high, and installation and subsequent dismantlement are convenient, and the safety in utilization is high, long service life's characteristics.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, 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 automobile hand brake disc adjusting screw with the pre-tightening function is characterized by comprising a threaded rod, an oil duct coaxial with the threaded rod is arranged inside the threaded rod, a plurality of oil outlets communicated with the oil duct are formed in the outer side wall of the threaded rod, a screw head is arranged at one end of the threaded rod, an outer threaded section is arranged on the outer side wall of the screw head, a limiting nut is screwed on the outer threaded section, an inner threaded section matched with the outer threaded section is arranged on the inner periphery of the limiting nut, a plurality of anti-skidding convex ribs which are annularly arranged are arranged on the end face, close to one end of the threaded rod, of the screw head, a first concave table is arranged at the other end of the screw head, a second concave table is arranged at the bottom of the first concave table, two side walls of the second concave table are trapezoidal faces, the two trapezoidal faces are oppositely arranged, and an installation groove is formed at the bottom of the second concave, the bottom of the mounting groove is provided with a cross groove used for pre-tightening the threaded rod, and the middle of the cross groove is provided with an oil inlet communicated with the oil duct.
2. The automobile hand brake disc adjusting screw with the pre-tightening function according to claim 1, wherein the screw head is a conical table, and the other end of the screw head is an arc convex surface or a plane.
3. The automobile hand brake disc adjusting screw rod with the pre-tightening function according to claim 2, wherein two side walls of the first concave platform are inclined surfaces or arc-shaped surfaces which are obliquely arranged.
4. The automobile hand brake disc adjusting screw rod with the pre-tightening function according to claim 3, wherein a beveled arc surface is respectively arranged on two sides of each trapezoidal surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920841939.9U CN211009485U (en) | 2019-06-05 | 2019-06-05 | Automobile hand brake disc adjusting screw with pre-tightening function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920841939.9U CN211009485U (en) | 2019-06-05 | 2019-06-05 | Automobile hand brake disc adjusting screw with pre-tightening function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211009485U true CN211009485U (en) | 2020-07-14 |
Family
ID=71475526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920841939.9U Active CN211009485U (en) | 2019-06-05 | 2019-06-05 | Automobile hand brake disc adjusting screw with pre-tightening function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211009485U (en) |
-
2019
- 2019-06-05 CN CN201920841939.9U patent/CN211009485U/en active Active
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