CN211344004U

CN211344004U - Parking system

Info

Publication number: CN211344004U
Application number: CN201922361422.2U
Authority: CN
Inventors: 王骏宇
Original assignee: 王骏宇
Current assignee: Zhejiang Qianjian Electronic Control Technology Co.,Ltd.
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-08-25
Anticipated expiration: 2029-12-25

Abstract

The utility model discloses a parking system, including spacing portion, advancing mechanism, execution pole portion, ratchet and pawl, the ratchet is perhaps kept away from through swing and ratchet meshing to the pawl, execution pole portion by the centre gripping in between spacing portion and the pawl, just the length direction of pawl is the same with the length direction of execution pole portion, the pawl is hugged closely all the time with the side of execution pole portion through the piece that resets, the side of execution pole portion is the execution conical surface at least in part, advancing mechanism drive execution pole portion is along length direction reciprocating motion to make the pawl swing under the effect of the execution conical surface. The utility model discloses a parking system compact structure.

Description

Parking system

Technical Field

The utility model relates to a car parking technical field especially relates to a parking system.

Background

The parking mechanism in the prior art is roughly divided into manual and automatic parking mechanisms, and the automatic parking mechanism can be divided into hydraulic drive and motor drive. The manual parking system is mainly used for an early traditional transmission and a low-end electric driving system; the hydraulic parking mechanism is mainly used in high-power occasions due to complex structure, high technical difficulty and high cost; due to the advantages of high reliability, high efficiency, easy control and the like, the electric parking mechanism is widely applied to automatic transmissions and electric drive systems under the current trend of automobile electromotion and intellectualization.

The parking mechanism in the prior art generally has the problem of large structure, occupies a large space in the transmission, brings difficulty for installation, and provides higher requirements for reliability when the number of parts is large. The applicability of the system is not considered from the perspective of integrated design, so that great changes and redesign are often needed when different application occasions need to be met. For example, chinese utility model patent publication No. CN208535144U discloses an electronic parking mechanism for a longitudinal automatic transmission, which can realize the pushing of a pawl through a screw pair structure and a connecting rod structure with a complex structure, but the screw pair structure and the connecting rod structure need occupy more positions and are inconvenient to install. In addition, the prior art discloses a parking system, it drives the pawl swing through the propulsion cover of circular cone to make the claw tooth of pawl mesh the ratchet or keep away from the ratchet, but this structure sets up the length direction of propulsion cover as the length direction vertical with the pawl generally, drives the pawl motion through the conical surface when the propulsion cover moves along its length direction, and at this moment, the parking system needs to satisfy the length direction of pawl (the length direction of parking system) and the length direction of propulsion cover (the thickness direction of parking system), and the length that the parking system occupies and thickness are all bigger, and then lead to whole volume great, and compact structure is not high, also brings inconvenience for the overall arrangement of car transmission system.

Disclosure of Invention

The utility model aims to solve the technical problem that a parking system is provided, the compactedness of system is improved.

The utility model aims to solve the technical problem still in that, a parking system is provided, more does benefit to car transmission system's overall arrangement.

In order to solve the technical problem, the utility model provides a parking system, including spacing portion, advancing mechanism, execution pole portion, ratchet and pawl, the pawl is through swing and ratchet meshing or keep away from the ratchet, form the space that is used for centre gripping execution pole portion between spacing portion and the pawl, just the length direction of pawl is the same with the length direction who executes pole portion, the pawl is hugged closely all the time with the side of execution pole portion through the piece that resets, the side of execution pole portion is the execution conical surface at least partly, advancing mechanism drive execution pole portion is along length direction reciprocating motion to make the pawl swing under the effect of the execution conical surface.

As an improvement of the above scheme, the hydraulic cylinder further comprises a spring, the execution rod part comprises a guide rod and an execution sleeve movably sleeved outside the guide rod, the execution conical surface is located on the execution sleeve, one end of the guide rod is connected with the propelling mechanism, the other end of the guide rod is provided with an anti-disengaging structure for preventing the execution sleeve from disengaging, and the spring is sleeved outside the guide rod and located on one side of the execution sleeve, which is far away from the anti-disengaging structure.

As an improvement of the scheme, the actuating sleeve comprises a conical surface section and a small-diameter section, the small-diameter section is connected with the small end of the conical surface section, and the pawl is always attached to the actuating sleeve.

As an improvement of the scheme, the surface of the limiting part, which is contacted with the execution rod part, is an arc-shaped clamping surface.

As an improvement of the scheme, the propelling mechanism comprises a swing arm and a power mechanism for driving the swing arm to swing, and the swing end of the swing arm is movably connected with the execution rod part.

As an improvement of the above scheme, the swing arm device further comprises a limiting piece which is arranged on one side of the swing arm far away from the execution rod part and used for limiting the safe swing range of the swing arm.

As an improvement of the scheme, the automobile swing arm fixing device further comprises a fixing frame, the swing arm is installed on the fixing frame, and the limiting piece is an installation bolt used for fixing the fixing frame in an automobile transmission system.

As an improvement of the scheme, the improved ratchet wheel fixing device further comprises a fixing frame, wherein the limiting portion, the pushing mechanism, the executing rod portion and the pawl are integrally installed on the fixing frame, and the limiting portion, the executing rod portion, the pawl and the ratchet wheel are sequentially arranged from top to bottom and are located on the same side of the fixing frame.

As an improvement of the proposal, the surface of the pawl close to the actuating rod part is provided with an abutting bulge which is tightly attached to the actuating rod part.

As the improvement of above-mentioned scheme, the piece that resets is the torsional spring, and the one end of torsional spring is fixed, and the other end colludes and holds the pawl to make the pawl receive the pretightning force to execute pole portion direction all the time.

Implement the utility model discloses an embodiment has following beneficial effect:

the utility model discloses a parking system cooperatees through pawl and spacing portion and will carry out the pole portion centre gripping between the two, the pawl can be laminated with the side of carrying out pole portion all the time under the effort drive that resets, and the side of carrying out pole portion is provided with the execution conical surface, the pawl can be promoted by the execution conical surface with the in-process of carrying out conical surface contact, it is specific, change to parking state by non-parking state when needs, advancing mechanism drive carries out pole portion and follows the big head end of carrying out the conical surface and to little head end direction motion, so that the pawl is outwards promoted by the execution conical surface at the in-process with carrying out the conical surface laminating, until pawl and ratchet meshing, on the contrary, change to non-parking state by parking state when needs, advancing mechanism drive carries out pole portion and follows opposite direction motion, at this moment, the ratchet is kept away from under the effect that resets gradually to the pawl. The utility model discloses a parking function can be realized to the parking system adoption less spare part, its simple structure, and the simplicity of the execution conical surface so that the reliability of parking is high.

The utility model discloses parking system sets up the length direction of pawl and the length direction of execution pole portion to the same direction, for example length direction between them all is left right direction, and at this moment, parking system has mainly occupied the space of left right direction, and relative prior art sets up pawl and execution pole portion perpendicularly, the utility model discloses a parking system can improve the compactedness of structure, and occupation space is little, and the overall arrangement of the transmission system of the car of being convenient for.

Drawings

Fig. 1 is a schematic structural diagram of a parking system of the present invention;

FIG. 2 is a schematic view of the present FIG. 1 with the ratchet and pawl removed;

FIG. 3 is a schematic view of the structure of FIG. 2 with the torsion spring removed;

FIG. 4 is a cross-sectional view of a spring and actuator stem;

fig. 5 is a schematic structural diagram of the parking system of the present invention after being configured with a motor;

fig. 6 is a schematic structural view of the parking system of the present invention in a parking state.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings. Only this statement, the utility model discloses the upper and lower, left and right, preceding, back, inside and outside etc. position words that appear or will appear in the text only use the utility model discloses an attached drawing is the benchmark, and it is not right the utility model discloses a concrete restriction.

Referring to fig. 1 to 6, the present invention discloses a parking system, which comprises a limiting portion 11, a propelling mechanism 2, an actuating rod portion 3, a ratchet 4 and a pawl 5. The ratchet wheel 4 is matched with the pawl 5 to form a ratchet wheel and pawl structure, and the pawl 5 is meshed with the ratchet wheel 4 or separated from the ratchet wheel 4 through swinging. The actuating rod part 3 is clamped between the limiting part 11 and the pawl 5, the length direction of the pawl 5 is the same as the length direction of the actuating rod part 3, the same length direction refers to the left and right direction shown in the drawings, or the front and back or up and down direction of other embodiments, the length direction of the pawl 5 and the actuating rod part 3 can be parallel or slightly offset, for example, the up and down direction is slightly offset shown in the drawings. The pawl 5 is always in contact with the side of the actuating lever 3 via the reset element 6.

The side surface of the actuating rod part 3 is at least partially provided with an actuating conical surface 30, and the pushing mechanism 2 drives the actuating rod part 3 to reciprocate along the length direction of the actuating rod part so that the pawl 5 swings under the driving of the actuating conical surface 30. The longitudinal direction is an approximate direction of the length, and may be along the axial center direction of the actuating lever portion 3, or along a direction deviating by a small angle from the actuating lever portion 3, or the actuating lever portion 3 may have a certain swing along the longitudinal direction.

In order to improve the installation integration of parking system, the utility model discloses a parking system still includes mount 1. The limiting part 11, the pushing mechanism 2, the executing rod part 3 and the pawl 5 are integrally installed on the fixing frame 1, the limiting part 11 can be a part of the fixing frame 1 which is integrally formed, can also be an independent structure, and is fixedly installed on the fixing frame 1 through a fastener or other processes. The limiting part 11, the actuating rod part 3, the pawl 5 and the ratchet wheel 4 are sequentially arranged from top to bottom and are positioned on the same side of the fixing frame 1. The utility model discloses a parking system is preferred to be integrated into a whole through mount 1 with spacing portion 11, advancing mechanism 2, execution pole portion 3 and pawl 5, during the installation, only need install these parts earlier on mount 1, then with the mount install the transmission system of car in can, for direct with these parts install more portably in transmission system. In addition, the limiting part 11, the actuating rod part 3, the pawl 5 and the ratchet wheel 4 are positioned on the same side of the fixed frame 1, which is vertically arranged, of the fixed frame 1, so that the whole parking system is relatively flat, and the parking system is convenient to install in a transmission system of an automobile.

In addition, in order to facilitate the contact between the actuating lever portion 3 and the pawl 5, the surface of the pawl 5 adjacent to the actuating lever portion 3 is provided with an abutment projection 53 in close contact with the actuating lever portion 3. The pawl 5 is in contact with the actuating lever 3 through the abutment projection 53, and the problem of interference can be prevented by the small area of the abutment projection 53 being in contact with the actuating lever 3 as opposed to the large area. Moreover, the surface of the abutting protrusion 53 attached to the actuating conical surface 30 may be an inclined surface, which facilitates the engagement with the actuating conical surface 30.

As a preferable scheme of the reset element 6, the reset element 6 is a torsion spring, one end 61 of the torsion spring is fixed, for example, fixed on the fixing frame 1, or on the reduction gearbox or the gearbox, and the other end hooks the pawl 5, so that the pawl 5 always receives a pre-tightening force in the direction of the actuating rod part 3. Specifically, the torsion spring may be sleeved outside the swing shaft 51 of the pawl 5, the torsion spring is clamped in the clamping groove of the fixing frame 1, the swing shaft 51 of the pawl 5 may be integrated with the pawl 5, or may be an independent swing shaft 51, and when the independent swing shaft 51 is adopted, the swing shaft 51 is fixedly installed on the fixing frame 1. The utility model discloses a piece 6 that resets adopts the torsional spring structure, its simple structure, and it is convenient to install, and the pretightning force reliability of torsional spring is high.

The utility model discloses a parking system installs 5 swings of pawl on mount 1, and wherein 5 the both ends of pawl are stiff end 5a and free end 5b respectively, and stiff end 5a is the swing axle center, and free end 5b is the claw 52 with ratchet 4 engaged with. The pawl 5 is matched with the limiting part 11 on the fixed frame 1 to clamp the actuating rod part 3 between the pawl 5 and the limiting part, the pawl 5 is always attached to the side surface of the actuating rod part 3 under the driving of the acting force of the reset piece 6, the side surface of the actuating rod part 3 is provided with an actuating conical surface 30, the pawl 5 is pushed by the actuating conical surface 30 in the process of contacting with the actuating conical surface 30, specifically, when the non-parking state is required to be changed to the parking state, the pushing mechanism 2 drives the actuating rod part 3 to move towards the small end along the large end of the actuating conical surface 30, so that the part, contacting with the actuating rod part 3, of the pawl 5 is gradually close to the large end of the actuating conical surface 30, the pawl 5 is pushed outwards by the actuating conical surface 30 in the process of attaching with the actuating conical surface 30 until the pawl 5 is engaged with the ratchet 4, and conversely, when the parking state is required to be changed to the non-parking state, the pushing, at this time, the pawl 5 is gradually separated from the ratchet 4 by the reset piece 6 until the pawl is separated from the ratchet 4.

It should be noted that the actuating rod portion 3 of the present invention preferably employs a movably sleeved guide rod 31 and an actuating sleeve 32. Specifically, the utility model discloses an execution pole portion 3 still includes spring 7, execution pole portion 3 includes that guide arm 31 and movable sleeve locate the outer execution cover 32 of guide arm 31, the execution conical surface 30 is located execution cover 32, the one end and the advancing mechanism 2 of guide arm 31 are connected, and the other end is equipped with the anti-disengaging structure 33 that prevents execution cover 32 and deviate from, spring 7 cover is located guide arm 31 and is located the one side that anti-disengaging structure 33 was kept away from to the execution cover. The anti-slip structure 33 may be a fastener screwed to one end of the guide bar, the head of the fastener is used for preventing the execution sleeve 32 from being separated, and the fastener may also be an annular protrusion provided at the end of the guide bar 31.

When the vehicle is resident, the pushing mechanism 2 drives the guide rod 31 to move towards one end of the anti-disengaging structure 33, at the moment, the spring 7 deforms and pushes the executing sleeve 32 to move towards the anti-disengaging structure 33 on the guide rod 31, the pawl 5 slowly approaches the ratchet 4 under the action of the tapered surface 30 of the executing sleeve 32 until the pawl 5 is meshed with the ratchet 4, and the spring 7 stores certain elastic potential energy in the process of executing the sleeve 32 to move, and the elastic potential energy ensures the reliability of the executing sleeve 32 driving the pawl 5 to park. If the ratchet wheel 4 has a large rotating speed in the parking process, the pawl 5 is impacted under the rotating action of the ratchet wheel 4 and cannot be smoothly meshed with the ratchet wheel 4, meanwhile, the elastic potential energy of the spring 7 still pushes the executing sleeve 32 to drive the pawl 5 to a meshing position, and in the meshing process of the pawl 5 and the ratchet wheel 4, the pawl 4 can be meshed and popped up repeatedly for a plurality of times until the rotating speed of the ratchet wheel 4 is reduced to a certain degree, the pawl teeth 52 are completely meshed with the ratchet wheel 4, and the parking state is achieved. When it is desired to change from the parking position to the non-parking position, the guide rod 31 is pulled back into the non-parking position by the advancing mechanism 2, so that the pawl 5 is not pressed by the actuating cone 30 and is moved away from the ratchet 4 by the restoring element 6.

The utility model discloses an execution pole portion 3 is preferred to set execution conical surface 30 to mobilizable structure, and when ratchet 4 and pawl 5 mesh, the spring force that can also pass through spring 7 plays the effect that further compresses tightly, and its parking stability is high, and the elastic potential energy that spring 7 stored can also form elastic meshing process to ratchet and pawl, the stability of the parking of being convenient for, and protection architecture does not receive the damage, improves the life of system. The utility model discloses an execute pole portion 3 and also can set up advancing mechanism 2 into pulling guide arm 31 and realize the parking state.

Further, the actuating sleeve 32 comprises a conical surface section 321 and a small diameter section 322, the small diameter section 322 is connected with the small end of the conical surface section 321, and the pawl 5 is always tightly attached to the actuating sleeve 32. When the pawl 5 contacts the small diameter section 322, the pawl tooth 52 of the pawl 5 is far away from the ratchet wheel 4, and the parking system is in the non-parking state, and when the contact point of the pawl 5 gradually moves from the small diameter section 322 to the large end of the conical section 321, the pawl 5 is gradually pushed towards the ratchet wheel 4 until the pawl is meshed with the ratchet wheel 4. The conical surface section 321 may be a conical surface with a constant taper, or may be composed of a plurality of conical surfaces with different tapers, and two sections of conical surfaces are shown in the drawings. The actuating sleeve 32 of the present invention can also be provided with a large diameter section at the large head end of the conical section 321.

As shown in fig. 2 and fig. 3, the propulsion mechanism 2 includes a swing arm 22 and a power mechanism for driving the swing arm to swing. The power mechanism comprises a power source and a driving shaft 21 which are in driving connection, the driving shaft 21 is driven to rotate through the power source, the driving shaft 21 is rotatably mounted on the fixed frame 1, one end of the swing arm 22 is fixedly connected with the driving shaft 21, and the other end of the swing arm is movably connected with the execution rod part 3. The utility model discloses a power supply can be motor 100, is rotary motion through motor drive driving shaft 21, also can be rotary motion through manual drive mechanism drive driving shaft. When the motor is adopted for driving, the motor is positioned at the other side of the fixed frame 1, namely the motor and the pawl 5 are respectively positioned at two sides of the fixed frame 1, so that the space utilization rate is maximized. The utility model discloses a parking system drives through swing arm 22 and carries out 3 reciprocating motion in pole portion, its simple structure, and the overall arrangement of the entire system of being convenient for.

In order to improve swing arm 22 wobbling security, the utility model discloses a parking system still includes locating part 8, swing arm 22 is located to the locating part and is kept away from one side of carrying out pole portion 3 to a safe swing scope of restriction swing arm. The utility model discloses a parking system prevents through locating part 8 that drive driving shaft 21 rotatory power supply (for example motor) when the problem appears, and the rotatory angle of swing arm 22 is too big to lead to carrying out that pole portion 3 deviates from normal position, regards as limiting swing arm 22 wobbling safety range through locating part 8 promptly.

Further, when the swing arm needs to be installed on the fixed frame 1, the limiting member 8 is an installation bolt for fixing the fixed frame 1 in the transmission system of the automobile. It should be noted that the utility model discloses a mount 1 generally selects to install the casing inner chamber at derailleur or reduction gear the utility model discloses in, the mounting bolt that will be used for installing mount 1 can reduce the part as limiting part 8 of restriction swing arm 22 safety swing range, can also be convenient for entire system's overall arrangement.

Furthermore, the utility model discloses a swing arm 22 is connected swing arm 22 and execution pole portion 3 through guide bar round pin 9, and is concrete, the utility model discloses a parking system still includes guide bar round pin 9, the both ends of guide bar round pin 9 are connected with swing arm 22 and execution pole portion 3 respectively. Further, the guide rod pin 9 is riveted on the swing arm 22, or the guide rod pin 9 and the swing arm 22 are connected through a screw, and the actuating rod part 3 is sleeved on the guide rod pin 9.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.

Claims

1. The parking system is characterized by comprising a limiting part, a propelling mechanism, an executing rod part, a ratchet wheel and a pawl, wherein the pawl is meshed with the ratchet wheel or is far away from the ratchet wheel through swinging, the executing rod part is clamped between the limiting part and the pawl, the length direction of the pawl is the same as that of the executing rod part, the pawl is always attached to the side surface of the executing rod part through a resetting piece, at least part of the side surface of the executing rod part is an executing conical surface, and the propelling mechanism drives the executing rod part to reciprocate along the length direction so that the pawl swings under the action of the executing conical surface.

2. The parking system according to claim 1, further comprising a spring, wherein the actuating rod portion comprises a guide rod and an actuating sleeve movably sleeved outside the guide rod, the actuating conical surface is located on the actuating sleeve, one end of the guide rod is connected with the propelling mechanism, the other end of the guide rod is provided with an anti-falling structure for preventing the actuating sleeve from falling off, and the spring is sleeved outside the guide rod and located on one side of the actuating sleeve away from the anti-falling structure.

3. The park system according to claim 2, wherein the actuating sleeve includes a tapered section and a reduced diameter section, the reduced diameter section being connected to a small end of the tapered section, the pawl always abutting the actuating sleeve.

4. The parking system according to any one of claims 1 to 3, wherein a surface of the stopper portion contacting the actuating rod portion is an arc-shaped clamping surface.

5. The parking system according to claim 1, wherein the propulsion mechanism comprises a swing arm and a power mechanism for driving the swing arm to swing, and a swing end of the swing arm is movably connected with the execution rod.

6. The parking system of claim 5, further comprising a limiting member disposed at a side of the swing arm away from the actuating lever portion and configured to limit a safe swing range of the swing arm.

7. The parking system according to claim 6, further comprising a fixing frame, wherein the swing arm is mounted on the fixing frame, and the limiting member is a mounting bolt for fixing the fixing frame in the transmission system of the automobile.

8. The parking system according to any one of claims 1 to 3 and 5 to 7, further comprising a fixing frame, wherein the limiting portion, the propelling mechanism, the actuating rod portion and the pawl are integrally mounted on the fixing frame, and the limiting portion, the actuating rod portion, the pawl and the ratchet wheel are sequentially arranged from top to bottom and are located on the same side of the fixing frame.

9. The park system according to claim 8, wherein a surface of the pawl adjacent to the actuating lever portion is provided with an abutment projection abutting against the actuating lever portion.

10. The parking system according to any one of claims 1 to 3 and 5 to 7, wherein the reset member is a torsion spring, one end of the torsion spring is fixed, and the other end of the torsion spring hooks the pawl, so that the pawl is always subjected to pre-tightening force towards the direction of the actuating rod.