CN209874837U

CN209874837U - Automobile tail door balance stay bar with door opening power assisting device

Info

Publication number: CN209874837U
Application number: CN201920262422.4U
Authority: CN
Inventors: 柏森; 尹艳华
Original assignee: Magna Automotive Systems (suzhou) Co Ltd
Current assignee: Magna Automotive Systems (suzhou) Co Ltd
Priority date: 2019-03-01
Filing date: 2019-03-01
Publication date: 2019-12-31
Anticipated expiration: 2029-03-01

Abstract

The utility model discloses a car tail-gate balance stay of helping hand device opens door in area, this balance stay is fixedly connected with helping hand spring on the first ball cover connecting rod that links firmly with first ball cover, the bell pipe has been linked firmly on the second ball cover connecting rod that links firmly with the second ball cover, and coaxial linking firmly the terminal sleeve pipe on the bell pipe, the free end of helping hand spring supports tightly on terminal sleeve pipe's top terminal surface, the terminal sleeve pipe presses on helping hand spring when car tail-gate is closed completely, helping hand spring can provide certain back-opening force for opening of car tail-gate when the tail-gate is opened, the structure of this balance stay can alleviate the load pressure that the electrodynamic balance stay that the opposite side used changes the motor, thereby can make its motor that the use moment of torsion is littleer, the poor of the balanced stay of car tail-gate both sides also can be adjusted simultaneously.

Description

Automobile tail door balance stay bar with door opening power assisting device

Technical Field

The utility model relates to an improvement structure of car tail-gate balancing stay bar especially relates to a car tail-gate balancing stay bar of booster unit opens door in area, belongs to car tail-gate stay bar technical field.

Background

The automobile tail gate balance stay bar that uses in the existing market mainly has two kinds, electrodynamic type balance stay bar and mechanical spring formula balance stay bar, and the most one side of the most economical and applicable type vehicle of many in practice adopts electrodynamic type balance stay bar and the opposite side adopts mechanical spring formula balance stay bar. The electric balance support rod generally comprises a rotating motor arranged inside the support rod, a screw rod connected with the rotating motor in a positioning mode and an ejector rod connected to the screw rod in a threaded mode and capable of moving axially along the screw rod, the screw rod is driven to rotate through rotation of the rotating motor in the circumferential direction, and the rotating motion of the screw rod is converted into linear motion of the ejector rod through threaded connection between the screw rod and the ejector rod, so that the balance support rod is stretched and retracted. The mechanical spring type balance stay bar generally comprises a telescopic outer tube mainly composed of an upper sleeve and a lower sleeve, a mechanical spring is arranged in the telescopic outer tube, one end of the mechanical spring is fixedly connected with the upper sleeve, the other end of the mechanical spring is fixedly connected with the lower sleeve, in the process of continuing to open the automobile tail gate after the automobile tail gate is pushed open, the tail gate is continuously opened by utilizing the driving force of a rotary motor in the electric balance stay bar at the other side, and the mechanical spring type balance stay bar enables the tail gate at the side and the tail gate at the other side to be balanced by utilizing the elastic release of the mechanical spring compressed in the mechanical spring type balance stay bar.

When the automobile tail gate jointly using the electric balance stay bar and the mechanical spring type balance stay bar is opened, the tail gate lock catch is loosened in a manual or electric control mode, a rotating motor is required to provide a large torque in a short time to drive the screw rod to rotate, so that the ejector rod is driven to upwards jack the tail gate at the side, and further the mechanical spring in the mechanical spring type balance stay bar at the other side is driven to release the elastic force; meanwhile, the two sides of the tail gate are relatively poor when the tail gate is opened, so that the tail gate can be damaged due to uneven stress after long-term use.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a car tail-gate balance stay bar of booster unit opens door in area, its simple structure can provide certain helping hand when the tail-gate is opened, alleviates the load pressure who uses the rotation motor of electronic stay bar one side, makes electronic stay bar can use the rotation motor that the moment of torsion is littleer, can also adjust the poor of tail-gate both sides balance stay bar.

The technical scheme of the utility model is that:

the automobile tail door balance brace rod with the door opening power assisting device comprises a first ball sleeve, a second ball sleeve, an outer sleeve, an inner sleeve and a mechanical long spring, wherein the first ball sleeve is fixedly connected to the top end of the outer sleeve, the second ball sleeve is fixedly connected to the bottom end of the inner sleeve, the lower end of the outer sleeve is coaxially sleeved on the outer wall of the upper end of the inner sleeve to form an outer tube capable of axially stretching, the top end of the mechanical long spring is fixedly connected to the inner side of the first ball sleeve, the bottom end of the mechanical long spring is fixedly connected to the inner side of the second ball sleeve, a first ball sleeve connecting rod coaxial with the outer sleeve is fixedly connected to one side of the first ball sleeve facing the inner part of the outer sleeve, and the first ball sleeve connecting rod is coaxially positioned and connected with the; the second ball sleeve is fixedly connected with a second ball sleeve connecting rod coaxial with the inner sleeve towards one side inside the inner sleeve, the second ball sleeve connecting rod is fixedly connected with the bottom end of a conical tube coaxially, the top end of the conical tube is fixedly connected with the lower end of a terminal sleeve coaxially, and the free end of the power-assisted spring can be abutted to the end face of the top end of the terminal sleeve.

The further technical scheme is as follows:

the outer wall of the first ball sleeve connecting rod is fixedly connected with a connecting rod sleeve, the connecting rod sleeve is located between the inner side of the outer pipe and the outer side of the conical pipe, the rear half section of the inner peripheral side wall of the connecting rod sleeve is fixedly connected with a plurality of blade springs along the circumferential direction, and the blade springs are clamped between the outer side wall of the conical pipe and the inner side wall of the connecting rod sleeve.

And the rear half section of the inner peripheral side wall of the connecting rod sleeve is fixedly provided with a positioner which is of a columnar structure matched with the inner diameter of the connecting rod sleeve, and the blade springs are fixedly connected to two ends of the positioner.

A circle of convex ring protruding inwards in the radial direction is formed on the inner peripheral side wall of the connecting rod sleeve corresponding to the positioner along the circumferential direction, a groove sinking inwards in the radial direction is formed on the outer peripheral side wall of the positioner corresponding to the convex ring, and the convex ring is fixedly connected in the groove to fixedly connect the positioner to the inner peripheral side wall of the connecting rod sleeve.

The outer peripheral side wall at the two ends of the positioner is provided with a plurality of positioning bosses protruding outwards along the radial direction, the end parts of the blade springs are provided with positioning grooves corresponding to the positioning bosses, and the positioning bosses are clamped in the positioning grooves to fix the blade springs on the positioner.

The mechanical long spring is sleeved on the peripheral side wall of the spring supporting sleeve.

The outer peripheral side wall of the top end of the terminal sleeve is tightly attached to the inner peripheral side wall of the connecting rod sleeve.

The outer thread is formed on the bottom end outer peripheral wall of the first ball sleeve connecting rod, and the assisting spring is in threaded fixed connection with the outer thread of the first ball sleeve connecting rod.

The taper pipe is by the thick pipe portion that is located first section and the tubule portion integrated into one piece that is located second section, and thick pipe portion bottom is the transition connection of gradual contracting formula with tubule portion top.

The utility model has the beneficial technical effects that: the power-assisted spring is fixedly connected to the first ball sleeve connecting rod fixedly connected with the first ball sleeve, the conical tube is fixedly connected to the second ball sleeve connecting rod fixedly connected with the second ball sleeve, the terminal sleeve is coaxially and fixedly connected to the conical tube, the free end of the power-assisted spring abuts against the top end face of the terminal sleeve, the terminal sleeve presses the power-assisted spring when the automobile tail door is completely closed, the power-assisted spring can provide certain jacking force for opening the automobile tail door when the tail door is opened, the structure of the balance stay bar can reduce the load pressure of an electric balance stay bar used by the other side to reach a motor, and therefore the motor can be enabled to use a motor with smaller torque, and meanwhile, the force difference of the balance stay bars on the two sides of the automobile tail door can be adjusted.

Drawings

FIG. 1 is a schematic structural view of a fully open position of a balance brace according to the present application;

FIG. 2 is a schematic structural view taken along section A-A in FIG. 1;

FIG. 3 is a schematic structural view of the fully closed state of the balance brace of the present application;

FIG. 4 is a schematic structural view of section B-B in FIG. 3;

FIG. 5 is an enlarged view of a portion of section C of FIG. 4;

FIG. 6 is an enlarged view of a portion of section D of FIG. 4;

FIG. 7 is a schematic view of an exploded view of a booster of the present application;

FIG. 8 is an enlarged view of a section of the brace of the present application including a locator;

wherein:

1-a first ball sleeve; 2-a second ball sleeve; 3-outer sleeve; 4-inner sleeve; 5-mechanical long spring; 6-outer tube; 7-a first ball sleeve connecting rod; 8-a power-assisted spring; 9-a second ball sleeve connecting rod; 10-a conical tube; 11-terminal bushing; 12-connecting rod sleeve; 13-leaf springs; 14-a locator; 15-spring support sleeve; 16-external threads; 17-convex ring; 18-grooves.

Detailed Description

In order to make the technical means of the present invention clearer and to implement the present invention according to the content of the specification, the following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples, which are used for illustrating the present invention and are not intended to limit the scope of the present invention.

The balance brace of the automobile tail gate with the door opening assisting device comprises a first ball sleeve 1, a second ball sleeve 2, an outer sleeve 3, an inner sleeve 4 and a mechanical long spring 5, and in the following description, the direction of the first ball sleeve 1 is taken as the top direction, and the direction of the second ball sleeve 2 is taken as the bottom direction.

First ball cover 1 fixed connection is on the top of outer tube 3, the bottom of interior sleeve pipe 4 is located to 2 fixed connection of second ball cover, form on the upper end outer wall of interior sleeve pipe 4 is located to the coaxial cover of lower extreme of outer tube 3 and can follow the flexible outer tube 6 of axial, the top fixed connection of machinery long spring 5 is in 2 inboards of second ball cover in 1 inboard just this mechanical long spring 5's bottom fixed connection of first ball cover, when the first ball cover of pulling or pulling second ball cover like this, interior sleeve pipe relative interior sleeve pipe slip can be followed to the outer tube, and owing to receive the effect of machinery long spring at the slip in-process, can not take place to break away from between outer tube and the interior sleeve pipe.

A first ball sleeve connecting rod 7 which is coaxial with the outer sleeve is fixedly connected to one side of the first ball sleeve 1 facing the inner side of the outer sleeve, a power spring 8 is coaxially positioned and connected to the first ball sleeve connecting rod, the power spring is fixedly connected to the first ball sleeve connecting rod, in the embodiment, an external thread 16 is formed on the outer peripheral wall of the bottom end of the first ball sleeve connecting rod 7, and the power spring 8 is fixedly connected to the external thread in a threaded manner. The second ball cover 2 towards interior sleeve pipe inside one side fixedly connected with one with interior sleeve pipe coaxial second ball cover connecting rod 9, this second ball cover connecting rod and the coaxial fixed connection in bottom of a conical duct 10, this conical duct 10 by be located the thick pipe portion of first section and be located the thin pipe portion integrated into one piece of second section, thick pipe portion bottom is the formula transitional coupling that gradually contracts with thin pipe portion top. The top end of the conical tube is coaxially and fixedly connected with the lower end of a terminal sleeve 11, and the connection mode of the terminal sleeve and the conical tube is a conventional fixed connection mode, such as riveting and the like. The free end of the boosting spring 8 can be abutted against the end face of the top end of the terminal sleeve 11, when the automobile tail door is in a fully closed state, the terminal sleeve is pressed on the boosting spring to enable the boosting spring to be in a fully compressed state, when the automobile tail door is opened, the mechanical long spring releases the elastic force, the boosting spring can be instantly converted into a relaxed state from the fully compressed state, and larger elastic force can be released, the elastic force can provide certain ejecting force when the automobile tail door is opened, the physical force is determined according to the selected large elastic force of the boosting spring, usually about 150N, the structure can reduce the load pressure of an electric balance brace rotating motor used on the other side, so that the motor with smaller torque can be used, and meanwhile, the force difference of balance braces on two sides of the automobile tail door can be adjusted.

A connecting rod sleeve 12 is fixedly connected to the outer peripheral wall of the first ball sleeve connecting rod 7, and is located between the inner side of the outer tube 6 and the outer side of the conical tube 10. A spring support sleeve 15 for supporting the mechanical long spring is fixedly connected to the outer peripheral side wall of the connecting rod sleeve 12, and the mechanical long spring 5 is sleeved on the outer peripheral side wall of the spring support sleeve. The rear half section of the inner peripheral side wall of the connecting rod sleeve is fixedly connected with a plurality of blade springs 13 along the circumferential direction, the blade springs are clamped between the outer side wall of the conical pipe and the inner side wall of the connecting rod sleeve, and four blade springs are arranged in the embodiment. A positioner 14 is fixedly arranged on the rear half section of the inner peripheral side wall of the connecting rod sleeve 12, the positioner is in a columnar structure matched with the inner diameter of the connecting rod sleeve, four blade springs 13 in the embodiment are divided into two groups and fixedly connected to two ends of the positioner, namely two blade springs 13 are fixedly connected to one end of the positioner, and the other two blade springs 13 are fixedly connected to the other end of the positioner. In the above structure, the fixing and connecting mode between the positioner 14 and the connecting rod sleeve is as follows: a circle of convex ring 17 which protrudes inwards in the radial direction is formed on the inner peripheral side wall of the connecting rod sleeve 12 corresponding to the locator 14 along the circumferential direction, a groove 18 which is recessed inwards in the radial direction is formed on the outer peripheral side wall of the locator 14 corresponding to the convex ring, the convex ring is fixedly connected in the groove to fixedly connect the locator on the inner peripheral side wall of the connecting rod sleeve, and the fixed connection mode is a conventional fixed connection mode, such as riveting and the like. In the above structure, the fixed connection mode between the leaf spring 13 and the positioner 14 is as follows: a plurality of (four in this embodiment) positioning bosses protruding outward in the radial direction are formed on the outer peripheral side walls of both ends of the positioner 14, and a positioning groove is formed at a position corresponding to the positioning bosses at the end of each leaf spring 13, so that the positioning bosses are positioned and clamped in the positioning grooves to fix the leaf springs on the positioner. When the supporting rod is used, when the conical tube moves axially, the locator is fixedly connected to the connecting rod sleeve, and the blade spring is fixed by the locating boss on the locator, so that the connecting rod sleeve, the locator and the blade spring cannot move axially. Furthermore, the distal end outer circumferential wall of the terminal sleeve 11 rests against the inner circumferential wall of the connecting rod sleeve 12. In-process that the car tail-gate was opened, the relative outer tube of taper pipe that the second ball cover drove rather than the interior sleeve pipe that links firmly and link firmly with the second ball cover connecting rod slides to the bottom direction, at the slip in-process, when the taper pipe moved to the bottom along with the second ball cover, the thin pipe portion of its lower half section moved to the bottom along with the second ball cover connecting rod earlier, the thick pipe portion of taper pipe moved to the rear end afterwards, because the diameter grow, when the thick pipe portion of taper pipe moved to being provided with blade spring department, the taper pipe outer wall that becomes thick struts blade spring, blade spring's elasticity acts on taper pipe periphery lateral wall, make the resistance increase of the taper pipe in the moving, the electrodynamic balance vaulting pole on cooperation tail-gate right side realizes this application vaulting pole hover.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a balanced vaulting pole of car tail-gate of booster unit opens door in area, includes first ball cover (1), second ball cover (2), outer tube (3), interior sleeve pipe (4) and mechanical long spring (5), first ball cover fixed connection is on the top of outer tube, second ball cover fixed connection is in interior sheathed tube bottom, the coaxial cover of lower extreme of outer tube forms on locating interior sheathed tube upper end outer wall and can follow axially flexible outer tube (6), the top fixed connection of mechanical long spring is inboard in first ball cover and the bottom fixed connection of this mechanical long spring is inboard in second ball cover, its characterized in that: a first ball sleeve connecting rod (7) which is coaxial with the outer sleeve is fixedly connected to one side of the first ball sleeve (1) facing the inner side of the outer sleeve, and a power-assisted spring (8) is coaxially positioned and connected to the first ball sleeve connecting rod; the second ball sleeve (2) is towards interior sleeve pipe inside one side fixedly connected with one with interior coaxial second ball sleeve connecting rod (9) of sleeve pipe, this second ball sleeve connecting rod and the coaxial fixed connection in bottom of a conical tube (10), the top of this conical tube and the coaxial fixed connection of lower extreme of a terminal sleeve pipe (11), the free end of helping hand spring (8) can support tightly in on the top terminal surface of terminal sleeve pipe (11).

2. The automobile tail gate balance stay bar with the door opening assisting device according to claim 1, characterized in that: the ball cover is characterized in that a connecting rod sleeve (12) is fixedly connected to the peripheral wall of the first ball cover connecting rod (7), the connecting rod sleeve is located between the inner side of the outer pipe and the outer side of the conical pipe, a plurality of leaf springs (13) are fixedly connected to the rear half section of the inner peripheral side wall of the connecting rod sleeve along the circumferential direction, and the leaf springs are clamped between the outer side wall of the conical pipe and the inner side wall of the connecting rod sleeve.

3. The automobile tail gate balance stay bar with the door opening assisting device according to claim 2, characterized in that: and a positioner (14) is fixedly arranged on the rear half section of the inner peripheral side wall of the connecting rod sleeve (12), the positioner is of a cylindrical structure matched with the inner diameter of the connecting rod sleeve, and a plurality of blade springs (13) are fixedly connected to two ends of the positioner.

4. The automobile tail gate balance stay bar with the door opening assisting device according to claim 3, characterized in that: a circle of convex ring (17) protruding inwards in the radial direction is formed on the inner peripheral side wall of the connecting rod sleeve (12) corresponding to the positioner (14) along the circumferential direction, a groove (18) sinking inwards in the radial direction is formed on the outer peripheral side wall of the positioner (14) corresponding to the convex ring, and the convex ring is fixedly connected in the groove to fixedly connect the positioner to the inner peripheral side wall of the connecting rod sleeve.

5. The automobile tail gate balance stay bar with the door opening assisting device according to claim 3, characterized in that: the outer peripheral side wall at both ends of the positioner (14) is provided with a plurality of positioning bosses protruding outwards along the radial direction, the end parts of the blade springs (13) are provided with positioning grooves corresponding to the positioning bosses, and the positioning bosses are clamped in the positioning grooves to fix the blade springs on the positioner.

6. The automobile tail gate balance stay bar with the door opening assisting device according to claim 2, characterized in that: the spring support sleeve (15) is fixedly connected to the peripheral side wall of the connecting rod sleeve (12), and the mechanical long spring (5) is sleeved on the peripheral side wall of the spring support sleeve.

7. The automobile tail gate balance stay bar with the door opening assisting device according to claim 2, characterized in that: the outer peripheral side wall of the top end of the terminal sleeve (11) is tightly attached to the inner peripheral side wall of the connecting rod sleeve (12).

8. The automobile tail gate balance stay bar with the door opening assisting device according to claim 1, characterized in that: an external thread (16) is formed on the outer peripheral wall of the bottom end of the first ball sleeve connecting rod (7), and the power-assisted spring (8) is fixedly connected to the external thread of the first ball sleeve connecting rod in a threaded mode.

9. The automobile tail gate balance stay bar with the door opening assisting device according to claim 1, characterized in that: the taper pipe (10) is formed by integrally forming a thick pipe part positioned at the upper half section and a thin pipe part positioned at the lower half section, and the bottom end of the thick pipe part is in gradual-shrinkage transitional connection with the top end of the thin pipe part.