CN114013412B - Wheel disc type parking braking wire drawing length automatic regulating structure - Google Patents
Wheel disc type parking braking wire drawing length automatic regulating structure Download PDFInfo
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- CN114013412B CN114013412B CN202111381315.1A CN202111381315A CN114013412B CN 114013412 B CN114013412 B CN 114013412B CN 202111381315 A CN202111381315 A CN 202111381315A CN 114013412 B CN114013412 B CN 114013412B
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- wheel disc
- wire drawing
- outer sheath
- limiting
- wiredrawing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
- B60T11/04—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting mechanically
- B60T11/046—Using cables
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Abstract
The invention relates to a wheel disc type parking braking wire drawing length automatic adjusting structure which comprises a front wire drawing assembly, a shell, a front wheel disc, a rear wheel disc, a limiting wheel disc, a wheel shaft, a first spring, a second spring, a return torsion spring, a first lock tongue, a second lock tongue, a bottom cover, a limiting screw and a rear wire drawing assembly. The front wheel disc and the limiting wheel disc are enabled to rotate in one direction by the aid of the two sets of spring bolts, the distance from a rear wire drawing rear connector on the rear wire drawing assembly to the rear end of the outer sheath is adjusted by the limiting wheel disc, automatic adjustment of wire drawing length is achieved, the free stroke of the parking braking swing arm is reduced, requirements of a vehicle on parking braking capacity are met, the problem that the braking wire drawing needs to be adjusted frequently manually is solved, and safety of the vehicle is improved.
Description
Technical Field
The invention belongs to the technical field of automobile parking braking, and particularly relates to a wheel disc type parking braking wire drawing length automatic adjusting structure.
Background
The conventional parking brake is a wire drawing structure for controlling a rear wheel drum type parking brake, and comprises a front pull rod 01 as shown in fig. 1; a parking brake wire drawing fixing bracket 02; an adjusting sleeve 03; a right wiredrawing outer sheath 04 and a wiredrawing right joint 05; a left drawn outer sheath 06; and drawing a left joint 07. The front pull rod 01 drives the wire drawing right connector 05 and the wire drawing left connector 07 to move forwards, and drives the parking braking swing arm to move to generate braking.
Along with the abrasion of a drum brake friction plate, the free stroke of the parking brake swing arm is increased, the total stroke transmitted to the parking brake handle is correspondingly increased and gradually exceeds the working stroke of the parking brake handle, so that the force acting on a brake shoe is correspondingly reduced, the parking brake capability is reduced, the requirement of a vehicle on the parking brake capability cannot be met, the length of the right wiredrawing outer sheath 04 is increased by frequently manually adjusting an adjusting sleeve 03 on the right wiredrawing outer sheath 04, the length between a wiredrawing end and the outer sheath is reduced, and the free stroke of the parking brake swing arm is reduced, so that the requirement of the vehicle on the parking brake capability is met.
Disclosure of Invention
The invention aims to provide a wheel disc type parking brake wire drawing length automatic adjusting structure, which aims to solve the problem that the existing parking brake wire drawing needs to be adjusted manually frequently.
In order to achieve the purpose, the application is realized by the following technical scheme:
a wheel disc type parking braking wire drawing length automatic adjusting structure comprises a front wire drawing assembly, a shell, a front wheel disc, a rear wheel disc, a limiting wheel disc, a wheel shaft, a first spring, a second spring, a return torsion spring, a first lock tongue, a second lock tongue, a bottom cover, a limiting screw and a rear wire drawing assembly;
the front wire drawing assembly penetrates through the shell and then is connected with the front wheel disc, and the rear wire drawing assembly penetrates through the shell and then is connected with the rear wheel disc;
the rear wheel disc is arranged in the shell, the rear end face of the rear wheel disc is attached to the inner surface of the shell, and the rear end of the wheel shaft penetrates through the central hole of the rear wheel disc and then is connected with the shell;
the front wheel disc is sleeved on the rear wheel disc, the first spring is sleeved on the first lock tongue and then arranged in the first lock tongue mounting hole of the rear wheel disc, and the outer end of the first lock tongue is matched with the inner tooth socket of the inner ring of the front wheel disc;
the second spring is sleeved on the second lock tongue and then arranged in a second lock tongue mounting hole on the wheel shaft, the limiting wheel disc is sleeved on the wheel shaft, the rear end face of the limiting wheel disc is attached to the front end face of the rear wheel disc, and the outer end of the second lock tongue is matched with an inner tooth socket of an inner ring of the limiting wheel disc;
the return torsion spring is arranged between the front wheel disc and the limit wheel disc, the bottom end of the limit screw is fixed on the rear wheel disc, and the front end of the limit screw is arranged in the annular groove of the limit wheel disc;
the bottom cover is connected with the shell, and the front end of the wheel shaft is connected with the bottom cover.
Furthermore, the front wire drawing assembly comprises a front wire drawing and a front wire drawing outer sheath, the front wire drawing penetrates through the front wire drawing outer sheath, a front wire drawing front connector is arranged at the front end of the front wire drawing, a front wire drawing rear connector is arranged at the rear end of the front wire drawing, and an outer sheath rear end is arranged on the front wire drawing outer sheath.
The further back wire drawing assembly comprises an inner back wire drawing and a back wire drawing outer sheath, the back wire drawing passes through the back wire drawing outer sheath, a back wire drawing front joint is arranged at the front end of the back wire drawing, a back wire drawing back joint is arranged at the back end of the back wire drawing, and a front end head of the outer sheath is arranged on the back wire drawing outer sheath.
Furthermore, the shell comprises a shell body, wherein a rear wiredrawing outer sheath fixing hole and a front wiredrawing outer sheath fixing hole are respectively formed in the side wall of the shell body, a convex part is arranged at the center of the bottom surface of the shell body, and a flat hole is formed in the convex part;
after the front wire drawing rear connector penetrates through the front wire drawing outer sheath fixing hole, the rear end of the outer sheath is fixed in the front wire drawing outer sheath fixing hole; and after the rear wire drawing front connector penetrates through the rear wire drawing outer sheath fixing hole, the front end of the outer sheath is fixed in the rear wire drawing outer sheath fixing hole.
Furthermore, a central hole is formed in the rear wheel disc, a circle of first ring groove is formed in the side edge of the rear wheel disc, and a rear wire drawing joint fixing hole communicated with the first ring groove is formed in the side wall of the first ring groove;
the front end face of the rear wheel disc is provided with a second annular groove, the rear wheel disc on the inner side of the second annular groove forms a boss, the boss is provided with two limiting screw mounting holes, and the side wall of the boss is provided with two first lock tongue mounting holes penetrating through the central hole.
Furthermore, the front wheel disc is annular, an inner tooth groove is formed in the inner ring of the front wheel disc, a circle of third ring groove is formed in the outer side wall of the front wheel disc, a front wire drawing end fixing hole communicated with the third ring groove is formed in the front wheel disc, and a torsion return spring mounting hole is formed in the side wall of the front wheel disc.
Furthermore, the internal tooth grooves are composed of internal tooth vertical surfaces and internal tooth inclined surfaces.
Furthermore, the limiting wheel disc is of a circular ring structure and comprises a limiting wheel disc body and an annular convex part extending along the inner ring of the limiting wheel disc body in the direction perpendicular to the limiting wheel disc body, an inner tooth groove is formed in the inner ring of the limiting wheel disc, two fourth ring grooves are formed in the limiting wheel disc body, the fourth limiting ring grooves are matched with limiting screw mounting holes in the rear wheel disc, and the upper ends of limiting screws are arranged in the fourth ring grooves; and a torsional return spring mounting hole is formed in the side wall of the annular protruding part.
Furthermore, the outer diameter of the limiting wheel disc is matched with the outer diameter of the boss of the rear wheel disc.
Furthermore, the wheel shaft is composed of a first cylinder, a second cylinder, a third cylinder and a flat head end in sequence, and a second lock tongue mounting hole which is radially communicated is formed in the side wall of the second cylinder.
The invention has the beneficial effects that:
the front wheel disc and the limiting wheel disc are enabled to rotate in a single direction by utilizing the two sets of spring bolt springs, the limiting wheel disc is enabled to adjust the distance from a rear wire drawing rear connector on the rear wire drawing assembly to the rear end of the outer sheath, the automatic adjustment of the wire drawing length is achieved, the free stroke of the parking braking swing arm is reduced, the requirement of a vehicle on parking braking capacity is met, the problem that the braking wire drawing needs to be adjusted manually frequently is solved, and the safety of the vehicle is improved.
Drawings
FIG. 1 is a schematic drawing of a wire drawing structure for controlling a rear wheel drum parking brake;
FIG. 2 is a schematic view of a structure for automatically adjusting the length of a wheel disc type parking brake pull wire according to the invention;
FIG. 3 isbase:Sub>A cross-sectional view A-A of FIG. 2;
FIG. 4 is a cross-sectional view taken along line B-B of FIG. 3;
FIG. 5 is an enlarged view of a portion of FIG. 3 at G;
FIG. 6 is a cross-sectional view taken along line D-D of FIG. 5;
FIG. 7 is a cross-sectional view E-E of FIG. 5;
FIG. 8 is a cross-sectional view F-F of FIG. 5;
FIG. 9 is a schematic structural view of a front drawing assembly of the present invention;
FIG. 10 is a schematic view of the bulk structure of the present invention;
FIG. 11 is a schematic front wheel construction of the present invention;
FIG. 12 is a schematic structural view of the rear wheel disc of the present invention;
FIG. 13 is a schematic structural view of a limiting wheel disc of the present invention;
FIG. 14 is a schematic view of the construction of the axle of the present invention;
FIG. 15 is a schematic view of the torsional return spring of the present invention;
FIG. 16 is a schematic structural view of a rear wire drawing assembly of the present invention.
Description of the reference numerals
01. The front pull rod, 02, a parking brake wire drawing fixing support, 03, an adjusting sleeve, 04, a right wire drawing outer sheath, 05, a wire drawing right joint, 06, a left wire drawing outer sheath, 07, a wire drawing left joint, 1, a front wire drawing assembly, 2, a shell, 3, a front wheel disc, 4, a rear wheel disc, 5, a limiting wheel disc, 6, a wheel shaft, 7, a second spring, 8, an adjusting pad, 9, a second bolt, 10, a return torsion spring, 11, a first spring, 12, a first bolt, 13, a bottom cover, 14, a limiting screw, 15, a rear wire drawing assembly, 111, a front wire drawing front joint, 112, a front wire drawing outer sheath, 113, a wire drawing outer sheath rear end, 114, a front wire drawing outer sheath, 115, a front wire drawing rear joint, 21, a rear wire drawing outer sheath fixing hole, 22, a bulge, 23, a flat hole, 24, a front wire drawing outer sheath fixing hole, 31 and a front wire drawing end fixing hole, 32, a third ring groove, 33, a torsional return spring mounting hole, 34, an internal tooth vertical surface, 35, an internal tooth inclined surface, 36, a cylindrical surface, 41, a first lock tongue mounting hole, 42, an internal cylindrical surface, 43, an inner side surface, 44, a central hole, 45, a limit screw fixing hole, 46, a first ring groove, 47, a rear wire drawing joint fixing hole, 48, a rear end surface, 49, a second ring groove, 51, a fourth ring groove, 52, an internal tooth vertical surface, 53, an internal tooth inclined surface, 54, a torsional return spring mounting hole, 55, a rear end surface, 61, a first cylinder, 62, a second cylinder, 63, a second lock tongue mounting hole, 64, a third cylinder, 65, a flat head end, 101, an outer end, 102, an inner end, 151, a rear wire drawing, 152, an outer sheath front end, 153, a rear wire drawing outer sheath, 154, a rear wire drawing front joint, 155 and a rear wire drawing rear joint.
Detailed Description
The technical solutions of the present application are described in detail below by examples, and the following examples are only exemplary and can be used only for explaining and explaining the technical solutions of the present application, but not construed as limiting the technical solutions of the present application.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, only for convenience of describing technical solutions of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be constructed in specific orientations, and be operated, and thus are not to be construed as limitations of the present application, and furthermore, the terms "first", "second", and "third" are used only for descriptive purposes and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, or may be connected through two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
The technical solution of the present application is further described in detail by the following specific embodiments in conjunction with the accompanying drawings.
The invention provides a parking brake wire drawing length automatic adjusting structure, which comprises a front wire drawing assembly 1; a housing 2; a front wheel disc 3; a rear wheel disc 4; a limit wheel disc 5; a wheel shaft 6; a second spring 7; an adjustment pad 8; a second lock tongue 9; a return torsion spring 10; a first spring 11; a first lock tongue 12; a bottom cover 13; a limit screw 14; and a rear wire drawing assembly 15.
The application provides a wheel disc parking braking wire drawing length automatically regulated structure, at first wear the inside of casing 2 from the back wire drawing oversheath fixed orifices 21 on the casing 2 with the back wire drawing front connector 154 on the back wire drawing assembly 15, then make the oversheath front end 152 on the back wire drawing assembly 15 fix on the back wire drawing oversheath fixed orifices 21 on the casing 2, again with the back wire drawing front connector 154 on the back wire drawing assembly 15 fix in the back wire drawing connector fixed orifices on the back rim plate 4, make back wire drawing 151 wind in the first annular on the back rim plate 4. The rear wheel disc 4 is placed in the shell 2, the rear end face 47 of the rear wheel disc 4 is aligned with the boss 22 of the shell 2, the center hole 44 of the rear wheel disc 4 is aligned with the center of the flat hole 23 of the shell 2, and the flat head end 65 of the wheel shaft 6 penetrates through the center hole 44 of the rear wheel disc 4 and is pressed into the flat hole 23 of the shell 2.
After being sleeved on the two first lock tongues 12 respectively, the two first springs 11 are placed in the two first lock tongue mounting holes 41 on the rear wheel disc 4 respectively, the front wire drawing rear connector 115 on the front wire drawing assembly 1 penetrates into the shell 2 from the front wire drawing outer sheath fixing hole 24 on the shell 2, then the outer sheath rear end 113 on the front wire drawing assembly 1 is fixed on the front wire drawing outer sheath fixing hole 24 on the shell 2, the front wire drawing rear connector 115 on the front wire drawing assembly 1 is fixed in the front wire drawing end fixing hole 31 on the front wheel disc 3, and the front wire drawing 114 is wound in the third ring groove 32 on the front wheel disc 3. Then, the cylindrical surface 36 on the front wheel disc 3 is pressed into the second annular groove 49 on the rear wheel disc 4, so that the two first lock tongues 12 are abutted to the inner tooth grooves on the front wheel disc 3 under the action of the first springs 11, the vertical surfaces on the first lock tongues 12 are contacted with the inner tooth vertical surfaces 34 on the front wheel disc 3, the inclined surfaces on the first lock tongues 12 are contacted with the inner tooth inclined surfaces 35 on the front wheel disc 3, the first lock tongues 12 can compress the first springs 11 under the action of the inclined surfaces, and the front wheel disc 3 can rotate in one direction relative to the rear wheel disc 4.
The second spring 7 is placed in a second bolt mounting hole 63 in the wheel shaft 6, the second bolt 9 is inserted into two ends of the second bolt mounting hole 63 in the wheel shaft 6 respectively, the limiting wheel disc 5 is sleeved on the wheel shaft 6, the rear end face 55 on the limiting wheel disc 5 is attached to the protruding portion of the rear wheel disc, the two second bolts 9 are abutted to the inner tooth grooves in the limiting wheel disc 5 under the action of the second spring 7, the vertical face on the second bolt 9 is in contact with the inner tooth vertical face 52 on the limiting wheel disc 5, the inclined face on the second bolt 9 is in contact with the inner tooth inclined face 53 on the limiting wheel disc 5, the second bolt 9 can compress the second spring 7 under the action of the inclined face, and the limiting wheel disc 5 can rotate in the single direction relative to the wheel shaft 6.
The limiting wheel disc 5 is fixed to the rear wheel disc 4 by two limiting screws 14, so that the rear wheel disc 4 can rotate relative to the limiting wheel disc 5 within the range of the fourth ring groove 51 on the limiting wheel disc 5. The inner end 102 of the return torsion spring 10 is inserted into the torsion return spring mounting hole 54 of the limiting wheel disc 5, the outer end 101 of the return torsion spring 10 is inserted into the torsion return spring mounting hole 33 of the front wheel disc 3, the adjusting pad 8 is sleeved on the first cylinder 61 of the wheel axle 6, then the bottom cover 13 is aligned with the shell 2, and the circular hole of the bottom cover 13 is pressed on the first cylinder 61 of the wheel axle 6, so that the assembly is completed.
When the front wire drawing front joint 111 on the front wire drawing assembly 1 is pulled forwards, the front wire drawing 114 drives the front wheel disc 3 to rotate anticlockwise through the front wire drawing rear joint 115, the internal tooth vertical surface 34 on the front wheel disc 3 drives the first lock tongue 12 to enable the rear wheel disc 4 and the limit screw 14 thereon to rotate anticlockwise together, and the rear wheel disc 4 drives the rear wire drawing rear joint 155 to move forwards through the rear wire drawing front joint 154 on the rear wire drawing assembly 15 to drive the parking braking swing arm to swing so as to generate braking.
When the total stroke of the parking braking swing arm is greater than the length R S of the fourth annular groove 51 on the limiting wheel disc 5, the limiting screw 14 reaches the other end of the fourth annular groove 51 on the limiting wheel disc 5, the limiting screw 14 drives the limiting wheel disc 5 to rotate along with the following free stroke of the parking braking swing arm, the internal tooth inclined surface 53 on the limiting wheel disc 5 presses the second lock tongue 9 to compress the second spring 7 inwards, the second lock tongue 9 retreats into the second lock tongue mounting hole 63 on the wheel shaft 6, the limiting wheel disc 5 rotates relative to the wheel shaft 6, after the limiting wheel disc 5 rotates relative to the wheel shaft 6 by an angle S1, the internal tooth inclined surface 53 on the second lock tongue 9 loses pressure, the second lock tongue 9 enters the second lock tongue mounting hole 63 on the wheel shaft 6, the limiting wheel disc 5 rotates relative to the wheel shaft 6, when the limiting wheel disc 5 rotates relative to the wheel shaft 6 by an angle S1, the distance from the front end R1 on the outer sheath R1 on the limiting wheel shaft 6 to the front outer sheath S1 on the wheel shaft 6 is changed into a wire drawing wire assembly R-rear end R1 on the outer sheath S-wheel shaft 6, and an L2-rear outer sheath S1 on the wire drawing wire assembly, and an L-wire drawing wire assembly S-rear end on the wire drawing wire assembly S1 on the wheel shaft 6, and an L-rear wire drawing wire assembly S2.
When the parking brake is released, the rear wire drawing rear joint 155 on the rear wire drawing assembly 15 moves backwards under the action of the return force of the parking brake swing arm, the rear wheel disc 4 and the front wheel disc 3 are driven to rotate clockwise by the rear wire drawing front joint 154 and the limit screw 14 on the rear wire drawing front joint, the front wheel disc 3 drives the front wire drawing front joint 111 to move backwards by the front wire drawing rear joint 115 on the front wire drawing assembly 1, the front wire drawing 114 freely moves in the fourth ring groove 51 on the limit wheel disc 5 by the limit screw 14, the limit wheel disc 5 does not rotate with the rear wheel disc 4, when the wire drawing stroke is greater than the length R & ltS & gt of the fourth ring groove 51 on the limit wheel disc 5, because the vertical plane 52 of the internal teeth on the limit wheel disc 5 is attached to the vertical plane of the second lock tongue 9, the second lock tongue 9 cannot be forced to compress the second spring 7 inwards, so that the limit wheel disc 5 cannot rotate clockwise relative to the wheel shaft 6, so that the limit screw 14 and the rear wheel disc 4 can not rotate clockwise continuously, at this time, the distance L2 from the rear wire drawing connector 155 on the rear wire drawing assembly 15 to the rear end of the outer sheath is changed into L2-R S1, the front wheel disc 3 continues to rotate clockwise under the action of the torsional return spring mounting hole 54, at this time, the internal tooth inclined surface 35 on the front wheel disc 3 presses the first lock tongue 12 to compress the first spring 11 inwards, so that the first lock tongue 12 retreats into the first lock tongue mounting hole 41 on the rear wheel disc 4, the front wheel disc 3 can rotate clockwise relative to the rear wheel disc 4 and returns to the initial position, at this time, the distance L1 from the front wire drawing connector 111 on the front wire drawing assembly 1 to the front end of the outer sheath is changed back into L1, and thus the distance L2 from the front wire drawing connector 111 on the front wire drawing assembly 1 to the front end of the outer sheath + from the rear wire drawing connector 155 on the rear wire drawing assembly 15 to the rear end of the outer sheath is changed into L1+ L2-R S1, after the brake shoe is worn, the increased distance R S1 of the free stroke of the parking brake swing arm is shortened, adjustment is completed, automatic adjustment of the wire drawing length is achieved, the free stroke of the parking brake swing arm is reduced, the requirement of a vehicle on parking brake capacity is met, the problem that the brake wire drawing needs to be adjusted frequently manually is solved, and the safety of the vehicle is improved.
Although embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the application, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A wheel disc type parking braking wire drawing length automatic adjusting structure is characterized by comprising a front wire drawing assembly, a shell, a front wheel disc, a rear wheel disc, a limiting wheel disc, a wheel shaft, a first spring, a second spring, a return torsion spring, a first lock tongue, a second lock tongue, a bottom cover, a limiting screw and a rear wire drawing assembly;
the front wire drawing assembly penetrates through the shell and is connected with the front wheel disc, and the rear wire drawing assembly penetrates through the shell and is connected with the rear wheel disc;
the rear wheel disc is arranged in the shell, the rear end face of the rear wheel disc is attached to the inner surface of the shell, and the rear end of the wheel shaft penetrates through the central hole of the rear wheel disc and then is connected with the shell;
the front wheel disc is sleeved on the rear wheel disc, the first spring is sleeved on the first lock tongue and then arranged in the first lock tongue mounting hole of the rear wheel disc, and the outer end of the first lock tongue is matched with the inner tooth socket of the inner ring of the front wheel disc;
the second spring is sleeved on the second lock tongue and then arranged in a second lock tongue mounting hole on the wheel shaft, the limiting wheel disc is sleeved on the wheel shaft, the rear end face of the limiting wheel disc is attached to the front end face of the rear wheel disc, and the outer end of the second lock tongue is matched with an inner tooth socket of an inner ring of the limiting wheel disc;
the return torsion spring is arranged between the front wheel disc and the limiting wheel disc, the bottom end of the limiting screw is fixed on the rear wheel disc, and the front end of the limiting screw is arranged in the annular groove of the limiting wheel disc;
the bottom cover is connected with the shell, and the front end of the wheel shaft is connected with the bottom cover.
2. The automatic wheel disc type parking brake wire drawing length adjusting structure according to claim 1, wherein the front wire drawing assembly comprises a front wire drawing and a front wire drawing outer sheath, the front wire drawing penetrates through the front wire drawing outer sheath, a front wire drawing front joint is arranged at the front end of the front wire drawing, a front wire drawing rear joint is arranged at the rear end of the front wire drawing, and an outer sheath rear end is arranged on the front wire drawing outer sheath.
3. The automatic wheel disc type parking brake wiredrawing length adjusting structure as claimed in claim 2, wherein the rear wiredrawing assembly comprises an inner rear wiredrawing and a rear wiredrawing outer sheath, the rear wiredrawing passes through the rear wiredrawing outer sheath, a rear wiredrawing front joint is arranged at the front end of the rear wiredrawing, a rear wiredrawing rear joint is arranged at the rear end of the rear wiredrawing, and an outer sheath front end is arranged on the rear wiredrawing outer sheath.
4. The automatic wheel disc type parking brake wire drawing length adjusting structure according to claim 3, wherein the housing comprises a housing body, a rear wire drawing outer sheath fixing hole and a front wire drawing outer sheath fixing hole are respectively formed in the side wall of the housing body, a protruding portion is arranged at the center of the bottom surface of the housing body, and a flat hole is formed in the protruding portion;
after the front wire drawing rear connector penetrates through the front wire drawing outer sheath fixing hole, the rear end of the outer sheath is fixed in the front wire drawing outer sheath fixing hole; and after the rear wire drawing front connector penetrates through the rear wire drawing outer sheath fixing hole, the front end of the outer sheath is fixed in the rear wire drawing outer sheath fixing hole.
5. The automatic wheel disc type parking brake wire drawing length adjusting structure according to claim 1, wherein a center hole is formed in the rear wheel disc, a circle of first ring groove is formed in the side edge of the rear wheel disc, and a rear wire drawing connector fixing hole communicated with the first ring groove is formed in the side wall of the first ring groove;
the front end face of the rear wheel disc is provided with a second annular groove, the rear wheel disc on the inner side of the second annular groove forms a boss, the boss is provided with two limiting screw mounting holes, and the side wall of the boss is provided with two first lock tongue mounting holes penetrating through the central hole.
6. The automatic wheel disc type parking brake wiredrawing length adjusting structure according to claim 1, wherein the front wheel disc is circular, an inner tooth groove is formed in an inner ring of the front wheel disc, a circle of third ring groove is formed in an outer side wall of the front wheel disc, a front wiredrawing end fixing hole communicated with the third ring groove is formed in the front wheel disc, and a torsion return spring mounting hole is formed in a side wall of the front wheel disc.
7. The automatic wheel disc parking brake wire drawing length adjusting structure according to claim 6, wherein the internal tooth grooves are composed of internal tooth vertical surfaces and internal tooth inclined surfaces.
8. The automatic wheel disc parking brake wiredrawing length adjusting structure according to claim 5, wherein the limiting wheel disc is of an annular structure and comprises a limiting wheel disc body and an annular protruding portion extending along the inner ring of the limiting wheel disc body in a direction perpendicular to the limiting wheel disc body, an inner tooth socket is arranged on the inner ring of the limiting wheel disc, two fourth ring grooves are arranged on the limiting wheel disc body, the fourth ring grooves are matched with limiting screw mounting holes on the rear wheel disc, and the upper ends of limiting screws are arranged in the fourth ring grooves; and a torsional return spring mounting hole is formed in the side wall of the annular protruding part.
9. The automatic wheel disc parking brake wire drawing length adjusting structure according to claim 8, wherein the outer diameter of the limiting wheel disc is matched with the outer diameter of a boss of the rear wheel disc.
10. The automatic wheel disc type parking brake wire drawing length adjusting structure as claimed in claim 1, wherein the wheel shaft is sequentially composed of a first cylinder, a second cylinder, a third cylinder and a flat head end, and a second lock tongue mounting hole which penetrates through in the radial direction is formed in the side wall of the second cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111381315.1A CN114013412B (en) | 2021-11-21 | 2021-11-21 | Wheel disc type parking braking wire drawing length automatic regulating structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111381315.1A CN114013412B (en) | 2021-11-21 | 2021-11-21 | Wheel disc type parking braking wire drawing length automatic regulating structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114013412A CN114013412A (en) | 2022-02-08 |
| CN114013412B true CN114013412B (en) | 2022-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111381315.1A Active CN114013412B (en) | 2021-11-21 | 2021-11-21 | Wheel disc type parking braking wire drawing length automatic regulating structure |
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| FR2923197A1 (en) * | 2007-11-06 | 2009-05-08 | Bosch Gmbh Robert | Automatic parking brake control system for motor vehicle, has traction lever rotating around axle, and cables including respective ends coupled with lever at fixation points that are separated from one another |
| CN203237235U (en) * | 2013-05-13 | 2013-10-16 | 重庆海德世拉索系统（集团）有限公司 | Regulating mechanism of brake cable before parking |
| CN204383443U (en) * | 2015-01-15 | 2015-06-10 | 安徽江淮汽车股份有限公司 | A kind of parking wire drawing assembly |
| CN109080602A (en) * | 2018-06-23 | 2018-12-25 | 河南速达电动汽车科技有限公司 | A kind of vehicle and its parking brake |
| CN110155011A (en) * | 2019-06-28 | 2019-08-23 | 安徽江淮汽车集团股份有限公司 | A kind of pure electric automobile parking wire drawing intermediate transmission mechanism |
| CN210971024U (en) * | 2019-08-08 | 2020-07-10 | 广州汽车集团股份有限公司 | Parking braking operating mechanism assembly and automobile |
| CN111976679A (en) * | 2020-08-31 | 2020-11-24 | 安徽江淮汽车集团股份有限公司 | Parking braking wire drawing mechanism |
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|---|---|
| CN114013412A (en) | 2022-02-08 |
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