CN209743585U - Electric push rod sealing unit and electric push rod - Google Patents
Electric push rod sealing unit and electric push rod Download PDFInfo
- Publication number
- CN209743585U CN209743585U CN201920446418.3U CN201920446418U CN209743585U CN 209743585 U CN209743585 U CN 209743585U CN 201920446418 U CN201920446418 U CN 201920446418U CN 209743585 U CN209743585 U CN 209743585U
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- CN
- China
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- sealing
- electric putter
- inner tube
- end cover
- sealing member
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Abstract
The utility model discloses an electric putter seals unit and electric putter belongs to electric putter technical field, including the outer tube and the inner tube that cup joint each other, the one end of outer tube is provided with the end cover, the inner tube runs through the end cover, be provided with the sealing member between end cover and the inner tube, sealing member and inner tube interference fit still including the adjustment mechanism who is used for adjusting the interference degree between sealing member and the inner tube. The utility model provides a wearing and tearing appear in the sealing member inner circle, accessible adjustment mechanism extrudees the sealing member to the regulating part for the magnitude of interference between sealing member and the inner tube increases to some extent, thereby prevents that the magnitude of interference between sealing member and the inner tube from reducing, prevents that leakproofness descends between sealing member, the inner tube, thereby has prolonged electric putter's life.
Description
Technical Field
The utility model relates to an electric putter technical field especially relates to an electric putter seals unit.
Background
When electric putter is at the during operation, the inner tube needs carry out axial slip along the outer tube, in order to guarantee electric putter's normal operating, prevents that dust impurity from entering into electric putter's inside, needs to seal electric putter. In order to guarantee the sealing performance between the end cover and the outer pipe, the end cover can be fixedly connected to one end of the outer pipe in a threaded connection mode, the threads are sealed in a mode of filling thread sealing glue, and the processing mode can guarantee good sealing performance.
In order to ensure the sealing performance between the inner pipe and the end cover, a sealing element is required to be arranged between the inner pipe and the end cover for sealing, the inner ring of the sealing element is in interference fit with the outer ring of the inner pipe, the outer ring of the sealing element is in interference fit with the inner wall of the end cover, the inner pipe and the end cover can be sealed, the interference magnitude between the sealing element and the inner pipe is the tightness between the sealing element and the end cover, the sealing degree of the electric push rod is reflected, and the sealing performance of the electric push rod is directly influenced.
however, after the electric push rod is used for a long time, the inner tube needs to be stretched and retracted repeatedly, friction is generated between the outer wall of the inner tube and the inner ring of the sealing element, the inner ring of the sealing element generates large friction loss, interference between the sealing element and the inner tube is reduced, when the interference between the sealing element and the inner tube is reduced or even disappears, the sealing performance between the sealing element and the inner tube is reduced, and even leakage occurs, so that normal use of the electric push rod is affected. Especially in outdoor harsh environments, it is necessary to cope with the intrusion of impurities such as rain water, dust, etc., for example: the application of the solar photovoltaic industry has longer requirement on the service life of the electric push rod and stricter requirement on the electric push rod.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem in the background art, and the electric putter sealing unit and the electric putter who provide sealed effectual, long service life.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
The utility model provides an electric putter seals unit, is provided with the end cover including the outer tube and the inner tube that cup joint each other, the one end of outer tube, the inner tube runs through the end cover, be provided with the sealing member between end cover and the inner tube, sealing member and inner tube interference fit still include the adjustment mechanism who is used for adjusting the interference degree between sealing member and the inner tube.
Preferably, the method comprises the following steps: the end cover comprises a sealing groove used for accommodating the sealing element, and the sealing groove comprises a limiting wall used for limiting the expansion of the sealing element towards the radial direction of the inner pipe and a positioning plane used for limiting the movement of the sealing element towards the outer pipe.
Preferably, the method comprises the following steps: the adjusting mechanism comprises an adjusting piece used for pressing the sealing piece towards the outer tube direction.
Preferably, the method comprises the following steps: the adjusting piece comprises an extrusion plane and a connecting structure, wherein the extrusion plane is used for extruding the sealing piece towards the outer pipe direction, and the connecting structure is used for driving the adjusting piece to move towards the outer pipe direction.
Preferably, the method comprises the following steps: the connecting structure is a threaded connecting structure, and the adjusting piece is movably connected to the end cover through the threaded connecting structure.
Preferably, the method comprises the following steps: the threaded connection structure comprises an external thread arranged on the end cover and an internal thread arranged on the adjusting piece, and the external thread is matched with the internal thread.
Preferably, the method comprises the following steps: the depth of the sealing groove is smaller than the thickness of the sealing element.
Preferably, the method comprises the following steps: the seal comprises at least one sealing ring.
Preferably, the method comprises the following steps: the sealing element is a sealing ring sleeved on the end cover.
An electric push rod comprises at least one electric push rod sealing unit.
Compared with the prior art, the utility model has the advantages of:
Through adopting above-mentioned technical scheme, when electric putter is using, the inner tube need carry out reciprocal flexible many times, can produce friction between the outer wall of inner tube and the inner circle of sealing member, and the inner circle of sealing member can produce great friction loss, leads to the magnitude of interference between sealing member and the inner tube to reduce. After the electric push rod is used for a period of time, one side of the sealing element in interference fit with the inner pipe is abraded, the sealing element can be extruded to the adjusting element through the adjusting mechanism, interference between the sealing element and the inner pipe is increased, interference between the sealing element and the inner pipe is prevented from being reduced, and sealing performance between the sealing element and the inner pipe is prevented from being reduced.
By arranging the sealing unit on the electric push rod, the sealing performance between the inner pipe and the end cover of the electric push rod can be kept for a long time, so that the service life of the electric push rod is prolonged.
Drawings
Fig. 1 is a schematic structural view of an electric putter of the present invention.
Fig. 2 is a first cross-sectional view of the electric putter sealing unit of the present invention.
Fig. 3 is a second cross-sectional view of the electric putter sealing unit of the present invention.
Fig. 4 is an enlarged view of the electric putter sealing unit according to the present invention.
Fig. 5 is a schematic view of an exploded structure of the electric putter sealing unit of the present invention.
In the figure: 1. an outer tube; 2. an end cap; 3. an inner tube; 4. a seal member; 5. an adjustment member; 6. an external thread; 7. an internal thread; 8. extruding a plane; 9. a sealing groove; 10. a limiting wall; 11. and positioning a plane.
Detailed Description
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-5, an electric putter sealing unit, including outer tube 1 and the inner tube 3 that cup joints each other, the one end of outer tube 1 is provided with end cover 2, inner tube 3 runs through end cover 2, be provided with sealing member 4 between end cover 2 and the inner tube 3, sealing member 4 and 3 interference fit of inner tube still include the adjustment mechanism who is used for adjusting the interference between sealing member 4 and the inner tube 3.
Through adopting above-mentioned technical scheme, when electric putter is using, inner tube 3 need carry out reciprocal flexible many times, can produce friction between the outer wall of inner tube 3 and the inner circle of sealing member 4, and the inner circle of sealing member 4 can produce great friction loss, leads to the magnitude of interference between sealing member 4 and the inner tube 3 to reduce. After the electric push rod is used for a period of time, one side of the sealing element 4 in interference fit with the inner pipe 3 is abraded, the sealing element 4 can be extruded to the adjusting element 5 through the adjusting mechanism, interference between the sealing element 4 and the inner pipe 3 is increased, interference between the sealing element 4 and the inner pipe 3 is prevented from being reduced, and sealing performance between the sealing element 4 and the inner pipe 3 is prevented from being reduced.
In another embodiment, the end cap 2 includes a sealing groove 9 for accommodating the sealing element 4, and the sealing groove 9 includes a limiting wall 10 for limiting the expansion of the sealing element 4 in the radial direction of the inner tube 3 and a positioning plane 11 for limiting the movement of the sealing element 4 in the direction of the outer tube 1.
By adopting the technical scheme, the sealing groove 9 is arranged on the end cover 2, and the position of the sealing element 4 can be limited by the sealing groove 9, so that the sealing groove 9 can be kept at a relatively stable position, and the sealing performance of the electric push rod is prevented from being influenced by the deviation of the sealing element 4 in the movement process of the electric push rod; by providing the positioning flat surface 11 in the seal groove 9, the positioning flat surface 11 can restrict the movement of the seal 4 in the axial direction of the inner tube 3.
Through set up spacing wall 10 on seal groove 9, spacing wall 10 and sealing member 4's outer lane interference fit can restrict the size of sealing member 4's circumference, prevents that the axial expansion from appearing in the process of adjusting the structure and adjusting the interference between sealing member 4 and inner tube 3 in the extrusion, and leads to the regulating effect to descend, ensures regulating mechanism's regulation effect.
in another embodiment, the adjusting mechanism comprises an adjusting member 5 for pressing the sealing member 4 towards the outer tube 1.
By adopting the technical scheme, through setting up regulating part 5, regulating part 5 can promote sealing member 4 to the direction of outer tube 1, produce the extrusion to the terminal surface of sealing member 4, make the both ends face of sealing member 4 extrude respectively between regulating part 5 and locating plane 11, form stable structure, and produce certain extrusion force, make sealing member 4 can produce certain elastic deformation, because spacing wall 10 on seal groove 9 can restrict the outer lane of sealing member 4, elastic expansion of outer lane can not produce to sealing member 4, the inner circle of sealing member 4 can produce the trend to inner circle deformation this moment, make the magnitude of interference between the inner circle of sealing member 4 and inner tube 3 increase, produce certain deformation trend, thereby make the leakproofness between sealing member 4 and the inner tube 3 strengthen, in order to eliminate the problem that the inner circle wearing and tearing appear and produce of sealing member 4.
In another embodiment, the adjusting member 5 includes a pressing plane 8 for pressing the sealing member 4 toward the outer tube 1 and a connecting structure for moving the adjusting member 5 toward the outer tube 1.
Through adopting above-mentioned technical scheme, through set up extrusion plane 8 on regulating part 5, extrusion plane 8 has good planarization, can closely laminate each other with the terminal surface on the sealing member 4, can improve the stability of extrusion plane 8 to the 4 extrusion in-process of sealing member, make extrusion plane 8, sealing member 4 and locating plane 11 produce stable clamping structure, make sealing member 4 can receive the extrusion of two axial directions simultaneously, and then produce to radial elastic deformation trend, thereby keep having good leakproofness between inner tube 3 and the end cover 2.
The connecting structure on the adjusting part 5 can drive the adjusting part 5 to move towards the outer pipe 1, so that the distance between the extrusion plane 8 and the positioning plane 11 is further reduced, the sealing element 4 generates further elastic deformation, the tightness between the inner ring of the sealing element 4 and the inner pipe 3 is increased, and a part of abrasion generated by the inner ring of the sealing element 4 is supplemented.
In another embodiment, the connection structure is a threaded connection structure, and the adjusting member 5 is movably connected to the end cap 2 through the threaded connection structure.
Through adopting above-mentioned technical scheme, adjust the interval of regulating part 5 and end cover 2 through threaded connection structure, threaded connection structure can turn into axial removal with axial rotation, and the mode of screw thread can conveniently be adjusted the position of regulating part 5, only need rotate regulating part 5 when the interference degree between sealing member 4 and inner tube 3 is adjusted to needs can.
In another embodiment, the threaded connection comprises an external thread 6 provided on the end cap 2 and an internal thread 7 provided on the adjusting member 5, the external thread 6 and the internal thread 7 cooperating with each other.
Through adopting above-mentioned technical scheme, carry out screw-thread fit through external screw thread 6 on the end cover 2 and internal thread 7 on the regulating part 5, can be with 5 threaded connection of regulating part on end cover 2 to seal the seal groove 9 on the end cover 2, prevent that the direct large-area of the inside sealing member 4 of seal groove 9 from exposing in the middle of the external environment, prevent that quick ageing from appearing in sealing member 4.
Meanwhile, the sealing element 4 can generate certain extrusion force on the positioning plane 11 and the extrusion plane 8, so that certain pressure can be always kept between the external thread 6 and the internal thread 7, a certain self-locking effect is achieved between the threads, and the connection stability between the adjusting element 5 and the end cover 2 is kept.
In another embodiment, the depth of the sealing groove 9 is less than the thickness of the sealing element 4.
By adopting the technical scheme, because the depth of the sealing groove 9 is smaller than the height of the sealing element 4, after the sealing element 4 is placed in the sealing groove 9, one end of the sealing element 4 protrudes out of the sealing groove 9, so that the extrusion plane 8 can extrude a part of the exposed sealing element 4, the part of the sealing element 4 can generate larger extrusion deformation, and the part of the sealing element 4 in the sealing groove 9 can keep a more stable state, thereby keeping the stability of the sealing element 4; and the position of the adjusting piece 5 can be defined by adjusting the height difference between the sealing piece 4 and the sealing groove 9, so that the interference between the sealing piece 4 and the inner pipe 3 can be adjusted.
In another embodiment, the sealing element 4 comprises at least one sealing ring.
By adopting the technical scheme, the sealing element 4 comprises at least one sealing ring, specifically one, two or three sealing rings can be selected respectively, and when one sealing ring is adopted, the installation and the matching among a plurality of sealing rings are not required to be considered, so that the installation is convenient; when sealing member 4 adopted a plurality of sealing washers, a plurality of sealing washers were mutually supported, and the sealing washer of different grade type can be selected for use to the sealing washer, guarantees electric putter's leakproofness under specific conditions, for example, wherein can select for use high temperature resistant sealing washer, can guarantee electric putter's leakproofness under high temperature environment.
In another embodiment, the sealing element 4 is a sealing ring fitted over the end cap 2.
Through adopting above-mentioned technical scheme, sealing member 4 is the sealing washer, and the sealing washer only needs to install in the middle of end cover 2 at the in-process of installation, through location structure such as shoulder hole on the end cover 2 advance line location can, make things convenient for the installation of sealing member 4.
An electric push rod comprises at least one electric push rod sealing unit. By arranging the sealing unit on the electric push rod, the sealing performance between the inner pipe 3 and the end cover 2 of the electric push rod can be kept for a long time, so that the service life of the electric push rod is prolonged.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (10)
1. The utility model provides an electric putter seals unit, includes outer tube (1) and inner tube (3) that cup joint each other, and the one end of outer tube (1) is provided with end cover (2), end cover (2) are run through in inner tube (3), be provided with sealing member (4) between end cover (2) and inner tube (3), sealing member (4) and inner tube (3) interference fit, its characterized in that: the sealing device also comprises an adjusting mechanism for adjusting the interference degree between the sealing element (4) and the inner pipe (3).
2. The electric putter seal unit of claim 1 wherein: the end cover (2) comprises a sealing groove (9) used for accommodating the sealing element (4), and the sealing groove (9) comprises a limiting wall (10) used for limiting the sealing element (4) to expand towards the radial direction of the inner pipe (3) and a positioning plane (11) used for limiting the sealing element (4) to move towards the outer pipe (1).
3. The electric putter seal unit of claim 2 wherein: the adjusting mechanism comprises an adjusting piece (5) used for pressing the sealing piece (4) towards the outer pipe (1).
4. The electric putter seal unit of claim 3 wherein: the adjusting piece (5) comprises an extrusion plane (8) used for extruding the sealing piece (4) towards the outer pipe (1) and a connecting structure used for driving the adjusting piece (5) to move towards the outer pipe (1).
5. The electric putter seal unit of claim 4 wherein: the connecting structure is a threaded connecting structure, and the adjusting piece (5) is movably connected to the end cover (2) through the threaded connecting structure.
6. The electric putter seal unit of claim 5 wherein: the threaded connection structure comprises an external thread (6) arranged on the end cover (2) and an internal thread (7) arranged on the adjusting piece (5), and the external thread (6) is matched with the internal thread (7) mutually.
7. The electric putter seal unit of claim 2 wherein: the depth of the sealing groove (9) is smaller than the thickness of the sealing element (4).
8. An electric putter seal unit according to any one of claims 1-7 wherein: the seal (4) comprises at least one sealing ring.
9. An electric putter seal unit according to any one of claims 1-7 wherein: the sealing element (4) is a sealing ring sleeved on the end cover (2).
10. An electric putter which characterized in that: comprising at least one electric tappet seal unit according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920446418.3U CN209743585U (en) | 2019-04-03 | 2019-04-03 | Electric push rod sealing unit and electric push rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920446418.3U CN209743585U (en) | 2019-04-03 | 2019-04-03 | Electric push rod sealing unit and electric push rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209743585U true CN209743585U (en) | 2019-12-06 |
Family
ID=68719586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920446418.3U Expired - Fee Related CN209743585U (en) | 2019-04-03 | 2019-04-03 | Electric push rod sealing unit and electric push rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209743585U (en) |
-
2019
- 2019-04-03 CN CN201920446418.3U patent/CN209743585U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191206 |