CN210686892U - Sealing structure of electric stay bar - Google Patents
Sealing structure of electric stay bar Download PDFInfo
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- CN210686892U CN210686892U CN201921525959.1U CN201921525959U CN210686892U CN 210686892 U CN210686892 U CN 210686892U CN 201921525959 U CN201921525959 U CN 201921525959U CN 210686892 U CN210686892 U CN 210686892U
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- bearing
- ring part
- sealing structure
- screw rod
- electric stay
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Abstract
The utility model discloses a sealing structure of an electric stay bar, which comprises an outer sleeve, a sealing ring and a screw rod; the screw rod is arranged in the outer sleeve and is coaxial with the outer sleeve, and a circle of raised first bearing baffle wall is arranged on the screw rod; a second bearing baffle wall corresponding to the first bearing baffle wall is arranged in the outer sleeve, and a circle of groove is arranged on the inner side of the second bearing baffle wall; the sealing ring comprises an inner ring part, an outer ring part and a connecting part, the connecting part is arranged between the inner ring part and the outer ring part, and the inner ring part is tightly sleeved on the screw rod and is positioned on one side of the first bearing retaining wall, which is far away from the bearing; the outer ring part is embedded into the groove and is tightly attached to the groove. The utility model discloses a sealing washer has directly realized the sealed between lead screw and the outer tube, and its structure is simpler for prior art, and the assembly is simpler, and the distance between lead screw and the outer tube is great relatively simultaneously, and its required precision to sealed spare part is lower.
Description
Technical Field
The utility model belongs to the automobile spare and accessory part field, concretely relates to seal structure of electronic vaulting pole.
Background
With the arrival of the intelligent electric era, the functions of the automobile are more and more prone to the development of electromotion, and the traditional automobile tail gate requires a manually operated gas spring support rod to gradually develop towards the trend of an electric support rod.
The vaulting pole realizes that it needs to be driven by the motor electronically, and the motor meets water and easily makes its short circuit lead to burning out the motor, causes the electric drive function to become invalid.
In order to prevent water, a waterproof sealing structure is required to be arranged between the screw rod and the outer sleeve, a sealing ring is usually arranged on the screw rod to seal the screw rod and the coupler in the prior art, and a sealing ring is arranged between the coupler and the outer sleeve to seal the coupler and the outer sleeve. The structure of the mode is complex, in order to achieve a good sealing effect, the sealing ring is matched with the outer sleeve, the requirements on the product roundness and the product consistency of the outer sleeve are high, and the assembly process is also complex.
Therefore, a new technology is needed to solve the problems of complex sealing structure, high precision requirement on parts and complex assembly process in the prior art.
SUMMERY OF THE UTILITY MODEL
For solving the above-mentioned problem among the prior art, the utility model provides a seal structure of electronic vaulting pole, its simple structure, lower, the assembly process is comparatively simple to the requirement of spare part.
The utility model adopts the following technical scheme:
a sealing structure of an electric stay bar comprises an outer sleeve, a sealing ring and a screw rod; the screw rod is arranged in the outer sleeve and is coaxial with the outer sleeve, and a circle of raised first bearing baffle wall is arranged on the screw rod; a second bearing retaining wall corresponding to the first bearing retaining wall is arranged in the outer sleeve, and a circle of groove is formed in the inner side of the second bearing retaining wall; the sealing ring comprises an inner ring part, an outer ring part and a connecting part, the connecting part is arranged between the inner ring part and the outer ring part, and the inner ring part is tightly sleeved on the screw rod and is positioned on one side of the first bearing blocking wall, which is far away from the bearing; the outer ring part is embedded into the groove and tightly attached to the groove.
As the utility model discloses technical scheme's further improvement, the protruding interior muscle that is equipped with a plurality of annular of inner circle portion, each interior muscle with the lead screw closely laminates.
As a further improvement of the technical scheme of the utility model, adjacent two interval between the interior convex rib equals.
As a further improvement of the technical proposal of the utility model, the inner convex rib is provided with three.
As a further improvement, one side of the outer ring part is provided with at least one circle of outer convex rib, the outer convex rib and the side wall of the groove are tightly attached.
As the utility model discloses technical scheme's further improvement, the recess sets up be close to one side of bearing on the second bearing fender wall, the terminal surface of recess is the notch cuttype, is equipped with the bearing gasket between bearing and the second bearing fender wall, the bearing gasket is equipped with the confession the via hole that the lead screw passed, the outer lane portion is close to the one side of bearing gasket with the bearing gasket closely laminates.
As the utility model discloses technical scheme's further improvement, outer lane portion is close to one side of bearing pad piece is equipped with the round bulge loop, the bulge loop inserts in the via hole.
As a further improvement of the technical proposal of the utility model, the connecting part is trumpet-shaped.
As the technical scheme of the utility model further improve, sealing washer integrated into one piece.
As a further improvement, the utility model discloses technical scheme, the lead screw corresponds the inner circle portion is equipped with the spacing circular slot of round, the inner circle portion is located in the spacing circular slot, the inner circle portion closely laminates with global of spacing circular slot.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a sealing washer has directly realized the sealed between lead screw and the outer tube, and its structure is simpler for prior art, and the assembly is simpler, and the distance between lead screw and the outer tube is great relatively simultaneously, and its required precision to sealed spare part is lower.
Drawings
The technology of the present invention will be further described in detail with reference to the accompanying drawings and detailed description:
FIG. 1 is an assembled cross-sectional view of the present invention;
FIG. 2 is an enlarged view at A in FIG. 1;
fig. 3 is a structural view of the seal ring of the present invention.
1-outer sleeve; 11-a second bearing stop wall; 12-a groove;
2-sealing ring; 21-an inner ring portion; 211-inner convex rib; 22-an outer collar portion; 221-external convex ribs; 222-a convex ring; 23-a connecting part;
3-a screw rod; 31-a first bearing stop wall; 32-limit circular groove;
4-bearing shim; 41-via holes;
5-motor reducer box;
6-a coupler;
7-bearing.
Detailed Description
The conception, specific structure and technical effects of the present invention will be described clearly and completely with reference to the accompanying drawings and embodiments, so as to fully understand the objects, aspects and effects of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The same reference numbers will be used throughout the drawings to refer to the same or like parts.
It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature or indirectly fixed or connected to the other feature. Furthermore, the description of the upper, lower, left, right, etc. used in the present invention is only relative to the mutual positional relationship of the components of the present invention in the drawings.
Referring to fig. 1 to 3, a sealing structure of an electric stay includes an outer sleeve 1, a sealing ring 2, and a screw rod 3.
Wherein, when assembling, install motor reducer case 5, shaft coupling 6, lead screw 3 and bearing 7 in the outer tube 1. The screw rod 3 is arranged in the outer sleeve 1 and is arranged coaxially with the outer sleeve 1, and the screw rod 3 is connected with an output shaft of a motor reducer box 5 through a coupler 6.
A circle of convex first bearing baffle walls 31 are arranged on the screw rod 3; a second bearing stop wall 11 is provided in the outer sleeve 1 corresponding to the first bearing stop wall 31. The bearing 7 is embedded in the coupler 6 and sleeved on the screw rod 3, and the end surface of the outer ring of the bearing 7 on the same side abuts against the second bearing baffle wall 11 through the bearing gasket 4; the end face of the inner race of the bearing 7 abuts on the first bearing-stop wall 31. The first bearing stop wall 31 and the second bearing stop wall 11 function to fix the axial positions of the coupling 6 and the bearing 7.
The seal ring 2 includes an inner ring portion 21, an outer ring portion 22, and a connecting portion 23, the connecting portion 23 is provided between the inner ring portion 21 and the outer ring portion 22, and the connecting portion 23 is formed in a horn shape. The whole sealing ring 2 is integrally formed.
The inner ring part 21 is tightly sleeved on the screw rod 3 and is positioned on one side of the first bearing baffle wall 31 far away from the bearing 7; the screw rod 3 is provided with a circle of limiting circular groove 32 corresponding to the inner ring part 21, the inner ring part 21 is positioned in the limiting circular groove 32, and the inner ring part 21 is tightly attached to the peripheral surface of the limiting circular groove 32.
Through this spacing circular slot 32, the axial position of restriction sealing washer 2 on lead screw 3 prevents that sealing washer 2 from taking place the skew at the rotation in-process of lead screw 3, and the global of inner circle portion 21 and spacing circular slot 32 closely laminates, realizes the sealed between sealing washer 2 and the lead screw 3.
Preferably, the inner ring portion 21 is convexly provided with a plurality of annular inner ribs 211, each inner rib 211 is tightly attached to the screw rod 3, and the distance between two adjacent inner ribs 211 is equal. A plurality of interior ribs 211 all closely laminate with lead screw 3, realize the multi-level sealed between sealing washer 2 and the lead screw 3, effectively improve sealed stability and sealed effect between sealing washer 2 and the lead screw 3.
The number of the inner ribs 211 may be two, three, four, five or even more, and preferably, the inner ribs 211 are provided with three.
Wherein, the inner side of the second bearing baffle wall 11 is provided with a circle of grooves 12; the outer ring portion 22 is embedded in the groove 12 and tightly attached to the groove 12. Through embedding outer lane portion 22 in this recess 12, restriction sealing washer 2 is for the axial position of outer tube 1, prevents that sealing washer 2 from taking place the skew relative to outer tube 1 in the rotation process of lead screw 3, and outer lane portion 22 closely laminates with recess 12, realizes the sealed between sealing washer 2 and the outer tube 1.
Preferably, at least one circle of external ribs 221 is disposed on one side of the outer ring portion 22, and the external ribs 221 are closely attached to the side wall of the groove 12. The rib is closely attached to the side wall of the groove 12, and the sealing effect is better compared with the way that the side surface of the outer ring part 22 is attached to the side wall of the groove 12.
Specifically, the groove 12 is disposed on one side of the second bearing blocking wall 11 close to the bearing 7, and an end surface of the groove 12 is stepped, i.e., a stepped circular groove. A bearing gasket 4 is arranged between the bearing 7 and the second bearing baffle wall 11, the bearing gasket 4 is provided with a through hole 41 for the screw rod 3 to pass through, and one surface of the outer ring part 22 close to the bearing gasket 4 is tightly attached to the bearing gasket 4. The sealing ring 2 is tightly attached to the bearing gasket 4, a sealing point is additionally arranged, the sealing effect is further enhanced, and meanwhile, the bearing gasket 4 also internally limits the position of the sealing ring 2 on the axis to prevent the sealing ring 2 from deviating.
Preferably, a ring of convex rings 222 is arranged on one side of the outer ring part 22 close to the bearing gasket 4, and the convex rings 222 are inserted into the through holes 41. Due to the arrangement of the convex ring 222, one side of the outer ring part 22 close to the bearing 7 is a stepped surface, the stepped surface is matched with the bearing gasket 4, the radial non-movement of the bearing gasket 4 is further limited, and the stepped surface can play a role in guiding and limiting during the assembly of the bearing gasket 4.
The utility model discloses an interior protruding muscle 211, the outer protruding muscle 221 that set up on the sealing washer 2 have strengthened the sealed effect between sealing washer 2 and lead screw 3, the outer tube 1, only need a sealing washer 2 just can realize good sealed. The utility model discloses a sealed between lead screw 3 and the outer tube 1 has directly been realized to a sealing washer 2, and is simpler for its structure of prior art, assembles simplyr, and the distance between lead screw 3 and the outer tube 1 is great relatively simultaneously, and its required precision to sealed spare part is lower.
Other contents of the sealing structure of the electric stay bar refer to the prior art and are not repeated herein.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, so that any modification, equivalent change and modification made by the technical spirit of the present invention to the above embodiments do not depart from the technical solution of the present invention, and still fall within the scope of the technical solution of the present invention.
Claims (10)
1. The utility model provides a seal structure of electronic vaulting pole which characterized in that: comprises an outer sleeve, a sealing ring and a screw rod;
the screw rod is arranged in the outer sleeve and is coaxial with the outer sleeve, and a circle of raised first bearing baffle wall is arranged on the screw rod;
a second bearing retaining wall corresponding to the first bearing retaining wall is arranged in the outer sleeve, and a circle of groove is formed in the inner side of the second bearing retaining wall;
the sealing ring comprises an inner ring part, an outer ring part and a connecting part, the connecting part is arranged between the inner ring part and the outer ring part, and the inner ring part is tightly sleeved on the screw rod and is positioned on one side of the first bearing blocking wall, which is far away from the bearing; the outer ring part is embedded into the groove and tightly attached to the groove.
2. The sealing structure of an electric stay according to claim 1, wherein: the inner ring part is convexly provided with a plurality of annular inner convex ribs, and each inner convex rib is tightly attached to the screw rod.
3. The sealing structure of an electric stay according to claim 2, wherein: the distance between two adjacent inner convex ribs is equal.
4. The sealing structure of an electric stay according to claim 2, wherein: the number of the inner convex ribs is three.
5. The sealing structure of an electric stay according to claim 1, wherein: one side of the outer ring part is provided with at least one circle of outer convex rib, and the outer convex rib is tightly attached to the side wall of the groove.
6. The sealing structure of an electric stay according to any one of claims 1 to 5, wherein: the recess sets up be close to one side of bearing on the second bearing keeps off the wall, and the terminal surface of recess is the notch cuttype, and bearing and second bearing keep off and be equipped with the bearing gasket between the wall, the bearing gasket is equipped with the confession the via hole that the lead screw passed, the outer lane portion is close to the one side of bearing gasket with the bearing gasket closely laminates.
7. The sealing structure of an electric stay according to claim 6, wherein: one side of the outer ring part, which is close to the bearing gasket, is provided with a circle of convex ring, and the convex ring is inserted into the through hole.
8. The sealing structure of an electric stay according to claim 1, wherein: the connecting part is horn-shaped.
9. The sealing structure of an electric stay according to claim 1, wherein: the seal ring is integrally formed.
10. The sealing structure of an electric stay according to claim 1, wherein: the lead screw corresponds the inner circle portion is equipped with the spacing circular slot of round, the inner circle portion is arranged in the spacing circular slot, and the inner circle portion closely laminates with the global of spacing circular slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921525959.1U CN210686892U (en) | 2019-09-12 | 2019-09-12 | Sealing structure of electric stay bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921525959.1U CN210686892U (en) | 2019-09-12 | 2019-09-12 | Sealing structure of electric stay bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210686892U true CN210686892U (en) | 2020-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921525959.1U Active CN210686892U (en) | 2019-09-12 | 2019-09-12 | Sealing structure of electric stay bar |
Country Status (1)
| Country | Link |
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| CN (1) | CN210686892U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486434A (en) * | 2019-09-12 | 2019-11-22 | 广州弘泽汽车科技有限公司 | A kind of sealing structure of electronic strut |
| WO2022183973A1 (en) * | 2021-03-05 | 2022-09-09 | 中国科学院宁波材料技术与工程研究所 | Electric push rod |
-
2019
- 2019-09-12 CN CN201921525959.1U patent/CN210686892U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486434A (en) * | 2019-09-12 | 2019-11-22 | 广州弘泽汽车科技有限公司 | A kind of sealing structure of electronic strut |
| WO2022183973A1 (en) * | 2021-03-05 | 2022-09-09 | 中国科学院宁波材料技术与工程研究所 | Electric push rod |
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