CN209799705U - Automobile tail door driving structure - Google Patents
Automobile tail door driving structure Download PDFInfo
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- CN209799705U CN209799705U CN201821795945.7U CN201821795945U CN209799705U CN 209799705 U CN209799705 U CN 209799705U CN 201821795945 U CN201821795945 U CN 201821795945U CN 209799705 U CN209799705 U CN 209799705U
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Abstract
The utility model provides an automobile tail-gate drive structure, its characterized in that includes the automobile tail-gate and locates the homoenergetic concertina main drive pole and the auxiliary drive pole at automobile tail-gate both ends respectively, the main drive pole has electric drive mechanism, the auxiliary drive pole is driven in the main drive pole. The utility model discloses based on the air spring structure, adopt the driven mode of main drive pole drive, auxiliary drive pole, make car tail-gate lift running noise lower, manufacturing cost reduces, and both ends synchronism is better, and is out of shape to the tail-gate and influences for a short time.
Description
Technical Field
The utility model relates to a field is opened and close to car tail-gate, concretely relates to car tail-gate drive structure.
background
Traditional car tail-gate is opened and close mainly through the reciprocating motion realization of air spring, but this kind of mode needs the people to apply external force, especially when meetting bad weather such as sleet, perhaps when user's strength is less, and the tail-gate is opened extremely inconveniently. Therefore, the application of the gas spring in the field of opening the automobile tail gate is limited.
Along with the continuous development of the automobile industry, the manual driving mode of the gas spring is gradually replaced by automatic driving, the automatic lifting of the automobile tail door is mainly realized through the driving motor, and the operation is convenient and fast.
Chinese patent application No. 201510433203.4 discloses "car back door electric gas spring vaulting pole" (application publication No. CN105275301A), and this application realizes car back door electric lift with the assembly of gas spring structure and motor drive compact structure in same barrel. However, the lifting driving mechanisms arranged at the two ends of the tail gate of the automobile have poor synchronism, the tail gate is easy to deform after being used for a long time, and the driving noises of the motors at the two ends of the tail gate are large; the electric gas spring support rod has a complex structure, high requirements on production and processing processes and high cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to foretell technical current situation and provide a with low costs, synchronism is good and warp the little car tail-gate actuating mechanism of influence to the tail-gate.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides an automobile tail-gate drive structure, its characterized in that includes the automobile tail-gate and locates the homoenergetic concertina main drive pole and the auxiliary drive pole at automobile tail-gate both ends respectively, the main drive pole has electric drive mechanism, the auxiliary drive pole is driven in the main drive pole.
In a further improvement, the main driving rod further comprises a first sleeve, a second sleeve, a screw rod, a piston rod and a positioning sleeve, wherein the second sleeve is sleeved outside the first sleeve and can move back and forth relative to the first sleeve; the electric driving mechanism and the screw rod are fixedly arranged in the first sleeve; one end of the screw rod is connected with the power output end of the electric driving mechanism through a bearing, and the other end of the screw rod is embedded in the hollow piston rod; a screw sleeve matched with the screw rod is formed on the inner wall of the piston rod; a piston is formed at one end, sleeved outside the screw rod, of the piston rod, the rod body of the piston rod penetrates through the first sleeve and enters the second sleeve, and the other end of the piston rod is fixedly connected to one end, far away from the first sleeve, of the second sleeve; the positioning sleeve is arranged on the inner end wall of the first sleeve and can limit the piston to be separated from the first sleeve. Liquid nitrogen or compressed gas is filled into the first sleeve, and the electric driving mechanism, the lead screw and the screw sleeve form an electric push rod to push the second sleeve and the piston rod to move linearly.
In order to improve the sealing performance, a rotary oil seal is arranged on the bearing.
Similarly, an oil seal is arranged on the positioning sleeve.
In a further design, the piston is provided with a vent hole which penetrates along the length direction of the piston rod. The air vents enable air chambers at the front end and the rear end of the piston to be communicated, so that compressed air can flow in the air vents when a large pressure difference is generated during movement of the piston rod, balance is guaranteed, and the piston is kept basically stable under the action force of the compressed air.
In a further design, the auxiliary driving rod comprises a gas spring, and a third sleeve and a fourth sleeve which are arranged outside the gas spring, two ends of the gas spring are respectively and fixedly connected with the third sleeve and the fourth sleeve, and the fourth sleeve can move back and forth relative to the third sleeve. The gas spring is not limited to the present invention, and any structure capable of supporting the weight of the tailgate may be used.
In a further design, the electric driving mechanism comprises a direct current motor and a speed reducer, the power output end of the direct current motor is connected with the input end of the speed reducer, and the direct current motor is provided with a sensor and an external power supply line.
In order to ensure the electric input of the electric driving mechanism, one end of the main driving rod is provided with a sealing cover, and the sealing cover is provided with a hole through which the external power line passes.
In order to facilitate the connection of the main driving rod with the automobile tail door and the automobile body, a first ball socket and a second ball socket are arranged at two ends of the main driving rod.
Similarly, in order to facilitate the connection of the auxiliary driving rod with the automobile tail door and the automobile body, a third ball socket and a fourth ball socket are arranged at two ends of the auxiliary driving rod.
Compared with the prior art, the utility model has the advantages of: the single electric driving mechanism is arranged to drive the screw rod, so that the screw sleeve is driven to realize the telescopic motion of the piston rod, and the automobile tail gate driving structure and the supporting structure are arranged inside and outside, so that the lifting operation noise of the automobile tail gate is lower, the original automobile tail gate double-side driving is reduced to single-side driving, and the manufacturing cost is reduced; based on the gas spring structure, adopt the driven mode of main drive pole drive, auxiliary drive pole, both ends synchronism is better, and is little to the deformation influence of tail-gate.
Drawings
FIG. 1 is an installation view of a tailgate drive structure for an automobile;
FIG. 2 is a cross-sectional view of the main drive rod of FIG. 1;
FIG. 3 is a schematic view of the electric drive mechanism of FIG. 2;
FIG. 4 is an enlarged view at C of FIG. 2;
fig. 5 is a schematic structural view of the auxiliary driving rod in fig. 1.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
As shown in fig. 1, the automobile tailgate driving mechanism includes an automobile tailgate 3, and a main driving rod 1 and an auxiliary driving rod 2 which are respectively arranged at two ends of the automobile tailgate 3 and can be extended and retracted, wherein one end of the main driving rod 1 is provided with a first ball socket 161 connected with a tailgate hinge 4, and the other end is provided with a second ball socket 162 connected with an automobile body hinge 5; similarly, one end of the auxiliary driving rod 2 is provided with a third ball socket 221 connected with the tail door hinge 4, and the other end is provided with a fourth ball socket 222 connected with the vehicle body hinge 5; the main driving rod 1 is driven by an electric driving mechanism 11, and the auxiliary driving rod 2 is driven by the main driving rod 1.
As shown in fig. 2 to 4, the main driving rod 1 includes an electric driving mechanism 11 and a screw rod 12 which are internally provided in a first sleeve 101, and a second sleeve 102 which is sleeved outside the first sleeve 101 and can move back and forth relative to the first sleeve 101. The electric driving mechanism 11 includes a dc motor 111 and a speed reducer 112, the dc motor 111 is provided with a sensor 113 and an external power line 114, and an output end of the dc motor 111 is connected to an input end of the speed reducer 112. The end of the first sleeve 101 remote from the second sleeve 102 is provided with a cover 15, and the external power line 16 of the electric driving mechanism 11 can pass through a hole on the cover 15. The power output end of the electric driving mechanism 11 is connected with the screw rod 12 through a bearing 14, and the other end of the screw rod 12 is embedded into a hollow piston rod 13. A thread sleeve 132 matched with the screw rod 12 is formed on the inner wall of the piston rod 13, and the screw rod 12 drives the piston rod 13 to move back and forth relative to the screw rod 12 through the thread sleeve 132. A piston 131 is formed at one end of the piston rod 13 connected with the screw rod 12, a rod body of the piston rod 13 penetrates through the first sleeve 101 and enters the second sleeve 102, and the other end of the piston rod 13 is fixedly connected with one end of the second sleeve 102 far away from the first sleeve 101. The end wall of the first sleeve 101, which is connected to the second sleeve 102, is provided with a positioning sleeve 18 for limiting the piston rod 13 from being separated from the first sleeve 101. Liquid nitrogen or compressed gas is filled in the sealed first sleeve 101, air chambers a and b are formed at both ends of the piston 131, and a vent hole 133 penetrating in the length direction of the piston rod 13 is further provided on the piston 13. Further, a rotary oil seal 171 is provided on the bearing 14, and an oil seal 172 is provided on the positioning sleeve 18.
As shown in fig. 5, the secondary driving rod 2 includes a gas spring 20, and a third sleeve 211 and a fourth sleeve 212 disposed outside the gas spring 20, one end of the gas spring 20 is fixedly connected to the third sleeve 211, and the other end is fixedly connected to the fourth sleeve 212, and the fourth sleeve 212 can move back and forth relative to the third sleeve 211. The gas spring 20 is not limited to this embodiment and any other structure capable of supporting the weight of the tailgate may be used.
As shown in fig. 1 to 5, the operation principle of the driving structure of the automobile tail gate of the embodiment is as follows: the electric driving mechanism 11 in the main driving rod 1 drives the screw rod 12, the screw rod 12 in the main driving rod 1 drives the piston rod 13 to move back and forth through the screw sleeve 132, and the second sleeve 102 is fixedly connected with the piston rod 13, so that the screw sleeve 132 drives the piston rod 13 and the second sleeve 102 to move back and forth integrally; meanwhile, the auxiliary driving rod 2 is responded, and the gas spring 20 in the auxiliary driving rod 2 synchronously moves, so that the integral lifting of the automobile tail gate 3 is realized.
Claims (9)
1. The automobile tail door driving structure is characterized by comprising an automobile tail door (3), and a main driving rod (1) and an auxiliary driving rod (2) which are respectively arranged at two ends of the automobile tail door (3) and can be extended and retracted, wherein the main driving rod (1) is provided with an electric driving mechanism (11), and the auxiliary driving rod (2) is driven by the main driving rod (1);
The main driving rod (1) further comprises a first sleeve (101), a second sleeve (102), a screw rod (12), a piston rod (13) and a positioning sleeve (18), wherein the second sleeve (102) is sleeved outside the first sleeve (101) and can move back and forth relative to the first sleeve (101); the electric driving mechanism (11) and the screw rod (12) are fixedly arranged in the first sleeve (101); one end of the screw rod (12) is connected with the power output end of the electric driving mechanism (11) through a bearing (14), and the other end of the screw rod is embedded in the hollow piston rod (13); a screw sleeve (132) matched with the screw rod (12) is formed on the inner wall of the piston rod (13); a piston (131) is formed at one end, sleeved outside the screw rod (12), of the piston rod (13), a rod body of the piston rod (13) penetrates through the first sleeve (101) and enters the second sleeve (102), and the other end of the piston rod (13) is fixedly connected to one end, far away from the first sleeve (101), of the second sleeve (102); the positioning sleeve (18) is arranged on the inner end wall of the first sleeve (101) and can limit the piston (131) from being separated from the first sleeve (101).
2. the automobile tailgate drive structure according to claim 1, characterized in that a rotary oil seal (171) is provided on the bearing (14).
3. The automobile tailgate drive structure according to claim 1, characterized in that an oil seal (172) is provided on the positioning sleeve (18).
4. The automobile tailgate drive structure according to claim 1, characterized in that a vent hole (133) is provided in the piston (131) to penetrate along a length direction of the piston rod (13).
5. the automobile tailgate drive structure according to claim 1, characterized in that the secondary drive rod (2) comprises a gas spring (20) and a third sleeve (211) and a fourth sleeve (212) arranged outside the gas spring (20), both ends of the gas spring (20) are fixedly connected with the third sleeve (211) and the fourth sleeve (212), respectively, and the fourth sleeve (212) is movable back and forth relative to the third sleeve (211).
6. The automobile tailgate driving structure according to claim 1, characterized in that the electric driving mechanism (11) comprises a direct current motor (111) and a speed reducer (112), a power output end of the direct current motor (111) is connected with an input end of the speed reducer (112), and the direct current motor (111) is provided with a sensor (113) and an external power line (114).
7. The automobile tail gate driving structure as claimed in claim 6, wherein a cover (15) is provided at one end of the main driving rod (1), and a hole for the external power line (114) to pass through is formed on the cover (15).
8. The automobile tailgate drive structure according to claim 1, characterized in that the main drive lever (1) is provided at both ends with a first ball socket (161) and a second ball socket (162).
9. The automobile tailgate drive structure according to claim 1, characterized in that the secondary drive lever (2) is provided at both ends with a third ball socket (221) and a fourth ball socket (222).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821795945.7U CN209799705U (en) | 2018-11-01 | 2018-11-01 | Automobile tail door driving structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821795945.7U CN209799705U (en) | 2018-11-01 | 2018-11-01 | Automobile tail door driving structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209799705U true CN209799705U (en) | 2019-12-17 |
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ID=68816341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821795945.7U Active CN209799705U (en) | 2018-11-01 | 2018-11-01 | Automobile tail door driving structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209799705U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114893089A (en) * | 2022-05-07 | 2022-08-12 | 浙江铁印汽车部件有限公司 | Be applied to automobile parts's electronic vaulting pole |
-
2018
- 2018-11-01 CN CN201821795945.7U patent/CN209799705U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114893089A (en) * | 2022-05-07 | 2022-08-12 | 浙江铁印汽车部件有限公司 | Be applied to automobile parts's electronic vaulting pole |
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