CN215889736U - Electric stay bar mechanism of automobile tail door - Google Patents
Electric stay bar mechanism of automobile tail door Download PDFInfo
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- CN215889736U CN215889736U CN202122081770.1U CN202122081770U CN215889736U CN 215889736 U CN215889736 U CN 215889736U CN 202122081770 U CN202122081770 U CN 202122081770U CN 215889736 U CN215889736 U CN 215889736U
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- sleeve
- guide sleeve
- outer sleeve
- screw
- motor
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- 230000001681 protective effect Effects 0.000 claims abstract description 23
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 9
- 239000003638 chemical reducing agent Substances 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
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Abstract
An electric stay bar mechanism of a tail door of an automobile comprises an outer sleeve, a guide sleeve, a sliding sleeve, a screw and nut mechanism, a telescopic rod, a motor and a speed reducer, wherein the guide sleeve is positioned and installed in the outer sleeve, the screw and nut mechanism is arranged in the guide sleeve, the sliding sleeve is positioned between the outer sleeve and the guide sleeve and is in sliding fit with the outer sleeve, the sliding sleeve is fixedly connected with one end of the telescopic rod through a first joint, the other end of the telescopic rod is fixedly connected with a nut of the screw and nut mechanism, a screw of the screw and nut mechanism is connected with the motor through the speed reducer, the motor and the speed reducer are installed in a motor protective shell, the motor protective shell is positioned in the outer sleeve and is formed by oppositely folding two semicircular shells, one ends of the two semicircular shells are provided with bearing positioning grooves, bearings for supporting the screw are installed in the bearing positioning grooves, and the other ends of the two semicircular shells are provided with stopping grooves, a second joint is in rotatable shaft positioning fit with the stopping groove through a stopping flange.
Description
Technical Field
The utility model relates to the technical field of automobile parts, in particular to an electric stay bar mechanism of an automobile tail door.
Background
A stay bar is arranged between the tail door and the automobile body of the automobile and used for supporting the tail door of the automobile. The sleeve of the stay bar is connected with the bulb of the automobile body bracket of the automobile through the second joint combination, and the piston rod of the stay bar is connected with the bulb of the tail door bracket of the automobile through the first joint combination. Because a certain relative angle exists between the axial leads of the car body bracket ball head and the tail gate bracket ball head when the arrangement is designed, the ball sockets at the two ends of the strut mechanism also have to keep corresponding angles to ensure the smooth installation, and thus, a certain relative angle needs to be ensured between the axial leads of the ball sockets of the second joint combination and the first joint combination. In order to ensure a certain relative angle, the second joint combination is fixedly connected with the motor protection shell in the sleeve, an anti-rotation boss is arranged on the motor protection shell, an anti-rotation groove is arranged at a corresponding position on the second joint combination, the anti-rotation boss is matched with the anti-rotation groove to achieve the purpose of mutual anti-rotation of the second joint combination and the motor protection shell, the first joint combination is fixedly connected with the piston rod in a riveting mode, so that a certain relative angle can be ensured between the axial lines of the ball socket of the second joint combination and the first joint combination, but the design needs to ensure that the angle tolerance is within +/-5 degrees, the production process is difficult to ensure, the assembly process and the manufacturing process of the strut mechanism are difficult, if the angle deviation exceeds 5 degrees, the vehicle body support ball head and the tail door support ball head have the risk of falling from the corresponding ball socket to influence the user safety, the consequences are severe.
Disclosure of Invention
In order to solve the problems in the prior art, the utility model provides an electric stay bar mechanism for an automobile tail door, which can reduce the production process difficulty and improve the product percent of pass without controlling the relative angle between two joints, and the technical scheme of the utility model is as follows:
an electric stay bar mechanism of an automobile tail door comprises an outer sleeve, a guide sleeve, a sliding sleeve, a screw nut mechanism, a telescopic rod, a motor and a speed reducing device, wherein the guide sleeve is installed in the outer sleeve in a positioning mode, the screw nut mechanism is arranged in the guide sleeve, the sliding sleeve is positioned between the outer sleeve and the guide sleeve and is in sliding fit with the outer sleeve, the sliding sleeve is fixedly connected with one end of the telescopic rod through a first joint, the other end of the telescopic rod is fixedly connected with a nut of the screw nut mechanism, a screw of the screw nut mechanism is connected with the motor through the speed reducing device, the motor and the speed reducing device are installed in a motor protective shell, the motor protective shell is positioned in the outer sleeve, the motor protective shell is formed by oppositely folding two semicircular shells, one ends of the two semicircular shells are provided with bearing positioning grooves for supporting the bearing of the screw rod to be installed in the bearing positioning grooves, the other ends of the two semicircular shells are provided with retaining grooves, and a second connector is in rotatable shaft positioning fit with the retaining grooves through retaining flanges.
The motor protective housing and the guide sleeve are adjacently arranged in the outer sleeve, a limiting boss is arranged at one end, adjacent to the motor protective housing, of the guide sleeve, a partition plate is arranged in an inner hole of the outer sleeve, a through hole is formed in the partition plate, and the guide sleeve penetrates through the through hole and is limited by the partition plate.
The guide sleeve is sleeved with a compression spring, and the extension end of the compression spring is positioned between the telescopic rod and the sliding sleeve.
The second joint is sealed with the inner hole orifice of the outer sleeve through a sealing ring, and an annular groove is formed in the second joint and used for installing the sealing ring.
The inner wall of the guide sleeve is provided with a plurality of guide grooves extending axially, and the periphery of a nut of the screw-nut mechanism is correspondingly provided with a plurality of bulges which form sliding fit with the guide grooves.
And the second joint is provided with an electric wire through hole for a lead to pass through.
An annular groove is arranged on a screw rod of the screw rod nut mechanism, and an oil seal is arranged between the annular groove and the inner wall of the guide sleeve.
Adopt above-mentioned technical scheme: the motor protection shell is positioned in the outer sleeve and consists of two semicircular shells which are oppositely folded, one end of each semicircular shell is provided with a bearing positioning groove for supporting the screw rod, a bearing used for supporting the screw rod is arranged in the bearing positioning groove, and the other end of each semicircular shell is provided with a stopping groove, a second joint is in rotatable shaft positioning fit with the stopping groove through a stopping flange. According to the electric stay bar mechanism for the automobile tail door, the second joint can freely rotate in the motor protective shell, so that the relative angle between the ball socket axial lead of the second joint and the ball socket axial lead of the first joint can freely adapt to the angle required by loading, the difficulty of the assembling process and the manufacturing process of the stay bar mechanism is reduced, and the product percent of pass is improved.
The guide sleeve is sleeved with a compression spring, the extending end of the compression spring is positioned between the telescopic rod and the sliding sleeve, the compression spring is used for providing a force value, providing assistance when the tail gate is opened, and providing resistance when the tail gate is closed.
The second joint is sealed with the inner hole orifice of the outer sleeve through a sealing ring, and an annular groove used for installing the sealing ring is formed in the second joint to prevent water from entering the motor protective shell.
And the second joint is provided with an electric wire through hole for a lead to pass through, and the lead extends into the motor protective shell and is electrically connected with the motor and the speed reducer.
The utility model is further described with reference to the drawings and the specific embodiments in the following description.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is an enlarged view of FIG. 1 at B;
FIG. 4 is a schematic view of the second joint assembled with a semicircular housing of the motor containment vessel;
fig. 5 is a schematic diagram of the disassembled structure of fig. 4.
Detailed Description
The utility model discloses an embodiment of an electric stay bar mechanism of an automobile tail door, which comprises the following steps:
referring to fig. 1 to 5, an electric stay bar mechanism for a tail door of an automobile comprises an outer sleeve 5, a guide sleeve 10, a sliding sleeve 2, a screw and nut mechanism, an expansion link 3, a motor 7 and a speed reduction device 6, wherein the guide sleeve 10 is axially positioned and mounted in the outer sleeve 5, the screw and nut mechanism is arranged in the guide sleeve 10, the sliding sleeve 2 is positioned between the outer sleeve 5 and the guide sleeve 10 and is in sliding fit with the outer sleeve 5, the sliding sleeve 2 is fixedly connected with one end of the expansion link 3 through a first joint 1, and in the embodiment, the expansion link 3 is connected with the first joint 1 through riveting. The other end of the telescopic rod 3 is fixedly connected with a nut 11 of the screw-nut mechanism, a screw 12 of the screw-nut mechanism is connected with a motor 7 through a speed reducer 6, a plurality of axially extending guide grooves 20 are formed in the inner wall of the guide sleeve 10, and a plurality of protrusions are correspondingly arranged on the periphery of the nut 11 of the screw-nut mechanism and form sliding fit with the guide grooves 20. Motor 7 and decelerator 6 are installed in motor protective housing 8, motor protective housing 8 is located outer sleeve 5, and motor protective housing 8 sets up with guide sleeve 10 is adjacent in outer sleeve 5, and guide sleeve 10 is equipped with spacing boss 18 with the one end that motor protective housing 8 is adjacent, be equipped with a baffle 17 in the outer sleeve 5 hole, be equipped with a through-hole on the baffle 17, guide sleeve 10 passes from this through-hole to spacing boss 18 is spacing by baffle 17. The motor protective housing 8 is formed by folding two semicircular shells in opposite directions, and in the embodiment, the two semicircular shells are fixed through buckles and clamping grooves in a clamping mode. One end of each of the two semicircular shells is provided with a bearing positioning groove 14, a bearing 13 for supporting the screw 12 is arranged in the bearing positioning groove 14, the other end of each of the two semicircular shells is provided with a retaining groove 15, and a second joint 9 forms rotatable shaft positioning fit with the retaining groove 15 through a retaining flange 16. The second connector 9 is sealed with the inner hole orifice of the outer sleeve 5 through a sealing ring 19, an annular groove is formed in the second connector 9 and used for installing the sealing ring 19, the periphery of the sealing ring 19 is in interference fit with the inner wall of the outer sleeve 5, and water is prevented from entering the motor protective shell 8. And the second connector 9 is provided with an electric wire through hole 21 for a lead to pass through, and the lead extends into the motor protective shell 8 and is electrically connected with the motor 7 and the speed reducer 6. The guide sleeve 10 is sleeved with a compression spring 4, the extending end of the compression spring 4 is positioned between the telescopic rod 3 and the sliding sleeve 2, and the compression spring 4 is used for providing a force value, providing assistance when the tail gate is opened and providing resistance when the tail gate is closed. The screw 12 of the screw-nut mechanism is provided with an annular groove, an oil seal 22 is arranged between the annular groove and the inner wall of the guide sleeve 10, and lubricating oil can be added into the guide sleeve 10 to lubricate the screw. According to the electric stay bar mechanism for the automobile tail door, the second joint 9 can freely rotate in the motor protective shell 8, so that the relative angle between the ball socket axial lead of the second joint 9 and the ball socket axial lead of the first joint 1 can freely adapt to the angle required by loading, the difficulty of the assembling process and the manufacturing process of the stay bar mechanism is reduced, and the product percent of pass is improved.
When the telescopic rod supporting device works, the motor 7 drives the screw rod 12 to rotate, so that the nut 11 moves along the guide groove 20 in the guide sleeve 10, the telescopic rod 3 is driven to move, and the length of the whole supporting rod is extended and contracted.
Claims (7)
1. The utility model provides an electronic vaulting pole mechanism of car tail-gate, includes outer sleeve (5), guide sleeve (10), sliding sleeve (2), screw nut mechanism, telescopic link (3), motor (7) and decelerator (6), guide sleeve (10) axle location is installed in outer sleeve (5), screw nut mechanism locates in guide sleeve (10), sliding sleeve (2) are located between outer sleeve (5) and guide sleeve (10), with outer sleeve (5) sliding fit, sliding sleeve (2) and telescopic link (3) one end are through first joint (1) fixed connection, telescopic link (3) other end and screw nut mechanism's nut (11) fixed connection, and motor (7), its characterized in that are connected through decelerator (6) in screw rod (12) of screw nut mechanism: motor (7) and decelerator (6) are installed in motor protective housing (8), motor protective housing (8) are located outer sleeve (5), and this motor protective housing (8) is folded in opposite directions by two semicircle casings and is constituted, and the one end of two semicircle casings is equipped with bearing positioning groove (14), and bearing (13) for supporting screw rod (12) are installed in bearing positioning groove (14), and the other end of two semicircle casings is equipped with stopping recess (15), and a second connects (9) and forms rotatable axle location cooperation through stopping flange (16) that is equipped with and stopping recess (15).
2. The electric stay bar mechanism for the automobile tailgate according to claim 1, wherein: motor protective housing (8) and guide sleeve (10) are adjacent in outer sleeve (5) and set up, and guide sleeve (10) and the adjacent one end of motor protective housing (8) are equipped with spacing boss (18), be equipped with in outer sleeve (5) hole a baffle (17), be equipped with a through-hole on baffle (17), guide sleeve (10) pass in this through-hole to spacing boss (18) are spacing by baffle (17).
3. The electric stay bar mechanism for the automobile tailgate according to claim 1, wherein: the guide sleeve (10) is sleeved with a compression spring (4), and the extending end of the compression spring (4) is positioned between the telescopic rod (3) and the sliding sleeve (2).
4. The electric stay bar mechanism for the automobile tailgate according to claim 1, wherein: the second joint (9) and the inner hole orifice of the outer sleeve (5) are sealed through a sealing ring (19), and an annular groove for installing the sealing ring (19) is formed in the second joint (9).
5. The electric stay bar mechanism for the automobile tailgate according to claim 1, wherein: the inner wall of the guide sleeve (10) is provided with a plurality of guide grooves (20) extending axially, and the periphery of a nut (11) of the screw-nut mechanism is correspondingly provided with a plurality of bulges which are in sliding fit with the guide grooves (20).
6. The electric stay bar mechanism for the automobile tailgate according to claim 1, wherein: and the second connector (9) is provided with a wire through hole (21) for a wire to pass through.
7. The electric stay bar mechanism for the automobile tailgate according to claim 1, wherein: an annular groove is arranged on a screw rod (12) of the screw rod nut mechanism, and an oil seal (22) is arranged between the annular groove and the inner wall of the guide sleeve (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122081770.1U CN215889736U (en) | 2021-08-31 | 2021-08-31 | Electric stay bar mechanism of automobile tail door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122081770.1U CN215889736U (en) | 2021-08-31 | 2021-08-31 | Electric stay bar mechanism of automobile tail door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215889736U true CN215889736U (en) | 2022-02-22 |
Family
ID=80503106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122081770.1U Active CN215889736U (en) | 2021-08-31 | 2021-08-31 | Electric stay bar mechanism of automobile tail door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215889736U (en) |
-
2021
- 2021-08-31 CN CN202122081770.1U patent/CN215889736U/en active Active
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