CN215172174U - Oil cylinder guide sleeve structure - Google Patents
Oil cylinder guide sleeve structure Download PDFInfo
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- CN215172174U CN215172174U CN202121290476.5U CN202121290476U CN215172174U CN 215172174 U CN215172174 U CN 215172174U CN 202121290476 U CN202121290476 U CN 202121290476U CN 215172174 U CN215172174 U CN 215172174U
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Abstract
The utility model relates to the technical field of hydraulic cylinder, especially, relate to a hydro-cylinder uide bushing structure, including the uide bushing body, uide bushing body fixed mounting is at the front end of cylinder, this internal dust ring that has set gradually in the past backward of uide bushing, the sealing washer is used to first pole, two-way sealing washer, the sealing washer is used to the second pole, guide ring and buffer ring, the dust ring adopts thick lip dust ring, be provided with first ring channel and second ring channel on the interior circumference of uide bushing, be provided with the oilhole that is used for the draining between two-way sealing washer and the sealing washer is used to the second pole, sealing washer is lip seal ring for first pole and the sealing washer is for the second pole, the lip of sealing washer is towards the outside of cylinder for first pole, the lip of sealing washer is towards the inboard of cylinder for the second pole. The utility model provides a hydro-cylinder uide bushing structure can play the two way seal effect to the hydro-cylinder, prevents that the hydro-cylinder from leaking outward and can prevent that media such as outside oil from entering into inside the hydro-cylinder.
Description
Technical Field
The utility model relates to a pneumatic cylinder technical field especially relates to a hydro-cylinder uide bushing structure.
Background
At present, for a conventional hydraulic oil cylinder, the sealing structure on the side of the guide sleeve is a dust ring, a rod sealing ring, a buffer ring and a guide ring, so that the sealing between the guide sleeve and the piston rod is realized.
For the oil cylinder applied to the medium such as the oil, the oil medium is corrosive to the sealing element, the oil has certain pressure to the sealing element, the oil cylinder needs to bear bidirectional pressure, namely, not only the pressure of the internal oil needs to be sealed, but also the pressure of the external oil needs to be sealed, the viscosity of the oil is higher, and for the oil cylinder applied to the medium such as the oil, the conventional sealing structure is continued, so that the leakage of the oil cylinder is caused, or the medium such as the external oil enters the oil cylinder, so that the use of the oil cylinder is influenced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: in order to solve the uide bushing among the prior art and lead to the hydro-cylinder to reveal outward easily in the higher environment of density such as petroleum, perhaps in media such as outside petroleum enter into the hydro-cylinder, influence the technical problem of the use of hydro-cylinder, the utility model provides a hydro-cylinder uide bushing structure can play the two way seal effect to the hydro-cylinder, prevents that the hydro-cylinder from leaking outward and can prevent that media such as outside petroleum from entering into inside the hydro-cylinder.
The utility model provides a technical scheme that its technical problem adopted is: a guide sleeve structure of an oil cylinder comprises a guide sleeve body, wherein the guide sleeve body is fixedly arranged at the front end of a cylinder barrel, a dustproof ring, a first rod sealing ring, a two-way sealing ring, a second rod sealing ring, a guide ring and a buffer ring are sequentially arranged in the guide sleeve body from front to back, the dustproof ring, the first rod sealing ring, the two-way sealing ring, the second rod sealing ring, the guide ring and the buffer ring are all sleeved on a piston rod, a first annular groove used for installing the first rod sealing ring and a second annular groove used for installing the second rod sealing ring are arranged on the inner circumference of the guide sleeve, an oil hole is formed between the two-way sealing ring and the second rod sealing ring, one end of the oil hole is communicated with the inner part of the guide sleeve, the other end of the oil hole is communicated with the outer part of the guide sleeve, and the first rod sealing ring and the second rod sealing ring are lip-shaped sealing rings, the seal ring for the first rod and the seal ring for the second rod are axially arranged along the cylinder barrel, the lip of the seal ring for the first rod faces the outer side of the cylinder barrel, and the lip of the seal ring for the second rod faces the inner side of the cylinder barrel.
The utility model discloses a cylinder uide bushing structure sets gradually dust ring, sealing washer for the first pole, two-way sealing washer, sealing washer for the second pole, guide ring and buffer ring in the uide bushing from the front to back, can play the sealed effect to the hydro-cylinder, and the dust ring adopts thick lip can resist outside oil pressure, avoids oil to get into the hydro-cylinder inside, plays the sealed effect of first way between hydro-cylinder and outside oil medium;
the lip of the sealing ring for the first rod faces the outer side of the cylinder barrel, so that media such as petroleum outside the oil cylinder can be prevented from entering the oil cylinder, and the lip of the sealing ring for the second rod faces the inner side of the cylinder barrel, so that hydraulic oil in the oil cylinder can be prevented from leaking;
the oil drainage groove can collect oil leaked due to failure of the sealing ring for the second rod in the long-time working process of the oil cylinder, and the oil flows to the oil tank through the oil hole, so that the oil is prevented from flowing out of the front end of the oil cylinder to cause external leakage;
because of error reasons such as frame, lead to piston rod and cylinder body disalignment, make the piston rod eccentric to one side, the guide ring can play the guide effect to the motion of piston rod to reduce the piston rod after eccentric with the wearing and tearing between dust ring, the sealing washer for first pole, two-way sealing washer and the sealing washer for the second pole, increase the life of dust ring, the sealing washer for first pole, two-way sealing washer and the sealing washer for the second pole, thereby improve the sealing performance of hydro-cylinder.
Further, the width of the first annular groove is larger than that of the first rod sealing ring, and the width of the second annular groove is larger than that of the second rod sealing ring. The width of first ring channel and second ring channel is greater than the width of first sealing washer for the pole and second sealing washer for the pole respectively, and after medium such as the outside oil of hydro-cylinder entered into first ring channel, can enter into the lip of first sealing washer for the pole to make the seal lip pressurized of first sealing washer for the pole hug closely with the excircle of piston rod and the inboard of uide bushing, thereby make the sealing performance between piston rod and the uide bushing better.
Further, a first check ring is arranged in the first annular groove, a second check ring is arranged in the second annular groove, the first check ring and the second check ring are sleeved on the piston rod, the first check ring is located on one side, close to the bidirectional sealing ring, of the first rod sealing ring, and the second check ring is located on one side, far away from the guide ring, of the second rod sealing ring. The first retaining ring and the second retaining ring can respectively play a role in resisting and limiting the sealing ring for the first rod and the sealing ring for the second rod, and can bear the axial force of hydraulic oil on the sealing ring for the first rod and the sealing ring for the second rod along the piston rod.
Further, specifically, the first rod sealing ring and the second rod sealing ring are both U-shaped sealing rings in the lip-shaped sealing ring.
Furthermore, a sliding sleeve is fixedly arranged on the inner circumference of the guide sleeve, the sliding sleeve is sleeved on the piston rod, and the sliding sleeve is positioned on one side, away from the guide ring, of the second buffer ring. The sliding sleeve further plays a guiding role in the movement of the piston rod, and when the piston rod is eccentric, the sliding sleeve can reduce the abrasion between the buffer ring and the piston rod, so that the service life of the buffer ring is prolonged.
Further, still be provided with the steel wire retaining ring that is used for fixed sliding sleeve in the uide bushing, the front end of steel wire retaining ring is inconsistent with the rear end face of sliding sleeve. The steel wire is used as the circle and plays spacing and fixed action to the sliding sleeve, also makes things convenient for the installation of sliding sleeve.
Furthermore, the front end of the guide sleeve is detachably and fixedly connected with a flange, and the flange is sleeved on the guide sleeve. The flange is convenient for connect between hydro-cylinder and the exterior structure, and fixed connection can be dismantled to flange and uide bushing, is convenient for change the flange of different specifications according to the user demand of difference.
Further, be provided with the step face on the outer circumference of uide bushing, the step face sets up with the central axis of piston rod is perpendicular, the step face is located the front end of uide bushing, the flange is inconsistent with the step face in order to fix a position the flange. When the flange is installed, the flange is sleeved on the guide sleeve, the rear end of the flange is abutted to the step surface, the step surface plays a positioning role in the installation of the flange, the connection stability of the flange and the guide sleeve can be enhanced, and when the flange is subjected to force along the axial direction of the piston rod, the step surface can play a certain supporting role in the flange, so that the stability of the flange is enhanced.
Further, an oil port seat is arranged on the outer circumference of the guide sleeve, an oil outlet is arranged on the oil port seat, and the oil outlet is communicated with the oil hole. The oil port seat is convenient for communicating an external oil path with the oil hole and facilitating oil in the oil hole to flow into the oil tank.
Further, an oil plug is arranged on the oil outlet in a plugged mode, and the oil plug is in threaded connection with the oil port base so as to facilitate installation and disassembly of the oil plug. When the oilhole was not used, the oil plug played the sealed effect to the hydraulic fluid port seat, prevented that medium such as oil and dust in the external environment from entering into in the oilhole.
The utility model has the advantages that the utility model discloses a hydro-cylinder guide sleeve structure sets gradually dust ring, sealing washer for the first pole, two-way sealing washer, sealing washer for the second pole, guide ring and cushion collar from the front to back in the uide bushing, can play the sealed effect to the hydro-cylinder, and the dust ring adopts thick lip can resist outside oil pressure, avoids oil to get into inside the hydro-cylinder, plays the effect of first sealing between hydro-cylinder and outside oil medium;
the lip of the sealing ring for the first rod faces the outer side of the cylinder barrel, so that media such as petroleum outside the oil cylinder can be prevented from entering the oil cylinder, and the lip of the sealing ring for the second rod faces the inner side of the cylinder barrel, so that hydraulic oil in the oil cylinder can be prevented from leaking;
the oil drainage groove can collect oil leaked due to failure of the sealing ring for the second rod in the long-time working process of the oil cylinder, and the oil flows to the oil tank through the oil hole, so that the oil is prevented from flowing out of the front end of the oil cylinder to cause external leakage;
due to errors of a rack and the like, the piston rod and the cylinder body are not coaxial, the piston rod is eccentric to one side, and the guide ring can play a role in guiding the movement of the piston rod, so that the abrasion between the eccentric piston rod and the dust ring, the first rod sealing ring, the two-way sealing ring and the second rod sealing ring is reduced, the service lives of the dust ring, the first rod sealing ring, the two-way sealing ring and the second rod sealing ring are prolonged, and the sealing performance of the oil cylinder is improved;
the sliding sleeve further plays a guiding role in the movement of the piston rod, and when the piston rod is eccentric, the sliding sleeve can reduce the abrasion between the buffer ring and the piston rod, so that the service life of the buffer ring is prolonged.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of the cylinder guide sleeve structure according to the preferred embodiment of the present invention.
Fig. 2 is an enlarged view at a in fig. 1.
In the figure: 1. a guide sleeve body; 2. a cylinder barrel; 3. a dust ring; 4. a seal ring for the first rod; 5. a bidirectional sealing ring; 6. a seal ring for the second rod; 7. a guide ring; 8. a buffer ring; 9. a piston rod; 10. an oil hole; 11. a first retainer ring; 12. a second retainer ring; 13. a sliding sleeve; 14. a steel wire retainer ring; 15. a flange; 16. a step surface; 17. an oil port seat; 18. an oil outlet; 19. an oil plug; 20. and (5) tightening the screw.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element 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. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 and 2, which are the most preferred embodiments of the present invention, a cylinder guide sleeve structure comprises a guide sleeve body 1, the guide sleeve body 1 is fixedly installed at the front end of a cylinder barrel 2, a dust ring 3, a first rod seal ring 4, a two-way seal ring 5, a second rod seal ring 6, a guide ring 7 and a buffer ring 8 are sequentially arranged in the guide sleeve body 1 from front to back, the dust ring 3, the first rod seal ring 4, the two-way seal ring 5, the second rod seal ring 6, the guide ring 7 and the buffer ring 8 are all sleeved on a piston rod 9, a first annular groove for installing the first rod seal ring 4 is arranged on the inner circumference of the guide sleeve, a second annular groove for installing the second rod seal ring 6 is further arranged, an oil hole 10 is arranged between the two-way seal ring 5 and the second rod seal ring 6, one end of the oil hole 10 is communicated with the inner part of the guide sleeve, and the other end is communicated with the outer part of the guide sleeve, the first rod sealing ring 4 and the second rod sealing ring 6 are lip-shaped sealing rings, and specifically, the first rod sealing ring 4 and the second rod sealing ring 6 are both U-shaped sealing rings in the lip-shaped sealing rings; the lips of the first rod sealing ring 4 and the second rod sealing ring 6 are arranged along the axial direction of the cylinder barrel 2, the lip of the first rod sealing ring 4 faces the outer side of the cylinder barrel 2, and the lip of the second rod sealing ring 6 faces the inner side of the cylinder barrel 2;
the utility model discloses an oil cylinder guide sleeve structure, set gradually dust ring 3, first pole with sealing washer 4, two-way sealing washer 5, second pole with sealing washer 6, guide ring 7 and cushion collar 8 from the front to back in the uide bushing, can play the sealed effect to the oil cylinder, dust ring 3 adopts thick lip can resist outside oil pressure, avoids oil to get into the oil cylinder inside, plays the effect of first sealing between oil cylinder and outside oil medium;
the lip of the first rod sealing ring 4 faces the outer side of the cylinder barrel 2, so that media such as petroleum outside the cylinder can be prevented from entering the cylinder, and the lip of the second rod sealing ring 6 faces the inner side of the cylinder barrel 2, so that hydraulic oil in the cylinder can be prevented from leaking;
the oil drainage groove can collect oil leaked due to failure of the sealing ring 6 for the second rod in the long-time working process of the oil cylinder, and the oil flows to the oil tank through the oil hole 10 to prevent the oil from flowing out of the front end of the oil cylinder to cause external leakage;
due to errors of a rack and the like, the piston rod 9 and the cylinder body are not coaxial, the piston rod 9 is eccentric to one side, and the guide ring 7 can guide the movement of the piston rod 9, so that the abrasion between the eccentric piston rod 9 and the dust ring 3, the first rod sealing ring 4, the two-way sealing ring 5 and the second rod sealing ring 6 is reduced, the service lives of the dust ring 3, the first rod sealing ring 4, the two-way sealing ring 5 and the second rod sealing ring 6 are prolonged, and the sealing performance of the oil cylinder is improved;
further, the width of the first annular groove is larger than the width of the first rod packing 4, and the width of the second annular groove is larger than the width of the second rod packing 6. The width of first ring channel and second ring channel is greater than the width of first for the pole sealing washer 4 and second for the pole sealing washer 6 respectively, and after medium such as the outside oil of hydro-cylinder entered into first ring channel, can enter into the lip of first for the pole sealing washer 4 to make the seal lip pressurized of first for the pole sealing washer 4 hug closely with the excircle of piston rod 9 and the inboard of uide bushing, thereby make the sealing performance between piston rod 9 and the uide bushing better.
Furthermore, a first retainer ring 11 is arranged in the first annular groove, a second retainer ring 12 is arranged in the second annular groove, the first retainer ring 11 and the second retainer ring 12 are both sleeved on the piston rod 9, the first retainer ring 11 is positioned on one side of the first rod sealing ring 4 close to the two-way sealing ring 5, and the second retainer ring 12 is positioned on one side of the second rod sealing ring 6 far away from the guide ring 7. The first retainer ring 11 and the second retainer ring 12 can respectively play a role in stopping and limiting the first rod sealing ring 4 and the second rod sealing ring 6, and can bear the axial force of the hydraulic oil on the first rod sealing ring 4 and the second rod sealing ring 6 along the piston rod 9.
Furthermore, a sliding sleeve 13 is fixedly arranged on the inner circumference of the guide sleeve, the sliding sleeve 13 is sleeved on the piston rod 9, and the sliding sleeve 13 is positioned on one side, far away from the guide ring 7, of the second buffer ring 8. The sliding sleeve 13 further plays a guiding role in the movement of the piston rod 9, when the piston rod 9 is eccentric, the sliding sleeve 13 can reduce the abrasion between the buffer ring 8 and the piston rod 9, so that the service life of the buffer ring 8 is prolonged, a steel wire check ring 14 for fixing the sliding sleeve 13 is further arranged in the guide sleeve, and the front end of the steel wire check ring 14 is abutted to the rear end face of the sliding sleeve 13. The steel wire is used as a circle to play spacing and fixed action to sliding sleeve 13, also makes things convenient for the installation of sliding sleeve 13.
Furthermore, fixedly connected with flange 15 can be dismantled to the front end of uide bushing, flange 15 suit is on the uide bushing, be provided with the external screw thread on the outer circumference of uide bushing, be provided with the internal thread on the inboard circumference of flange 15, adopt threaded connection's mode to be connected between flange 15 and the uide bushing to make things convenient for flange 15's installation and dismantlement, flange 15 and the front end of uide bushing set up holding screw 20, holding screw 20 sets up along piston rod 9 axial, holding screw 20 at least partly and flange 15 threaded connection, holding screw 20 has another part and uide bushing threaded connection at least. The flange 15 is convenient for connect between hydro-cylinder and the exterior structure, and fixed connection can be dismantled to flange 15 and uide bushing, is convenient for change the flange 15 of different specifications according to the user demand of difference. A step surface 16 is arranged on the outer circumference of the guide sleeve, the step surface 16 is perpendicular to the central axis of the piston rod 9, the step surface 16 is positioned at the front end of the guide sleeve, and the flange 15 is abutted against the step surface 16 to position the flange 15. When the flange 15 is installed, the flange 15 is sleeved on the guide sleeve, the rear end of the flange 15 is abutted to the step surface 16, the step surface 16 plays a positioning role in installation of the flange 15, the connection stability of the flange 15 and the guide sleeve can be enhanced, and when the flange 15 is subjected to force along the axial direction of the piston rod 9, the step surface 16 can play a certain supporting role in the flange 15, so that the stability of the flange 15 is enhanced.
Further, an oil port seat 17 is arranged on the outer circumference of the guide sleeve, an oil outlet 18 is arranged on the oil port seat 17, and the oil outlet 18 is communicated with the oil hole 10. The oil port seat 17 is convenient for communicating an external oil path with the oil hole 10 and facilitating the oil in the oil hole 10 to flow into the oil tank; an oil plug 19 is arranged on the oil outlet 18 in a plugged mode, and the oil plug 19 is in threaded connection with the oil outlet seat 17 so as to facilitate the installation and the disassembly of the oil plug 19. When the oil hole 10 is not used, the oil plug 19 seals the oil hole seat 17, and prevents medium such as petroleum and dust in the external environment from entering the oil hole 10.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the contents of the specification, and must be determined by the scope of the claims.
Claims (10)
1. The utility model provides an hydro-cylinder uide bushing structure, includes uide bushing body (1), uide bushing body (1) fixed mounting is at the front end of cylinder (2), its characterized in that: the guide sleeve is characterized in that a dust ring (3), a first rod sealing ring (4), a two-way sealing ring (5), a second rod sealing ring (6), a guide ring (7) and a buffer ring (8) are sequentially arranged in the guide sleeve body (1) from front to back, the dust ring (3), the first rod sealing ring (4), the two-way sealing ring (5), the second rod sealing ring (6), the guide ring (7) and the buffer ring (8) are all sleeved on a piston rod (9), the dust ring (3) adopts a thick-lip dust ring (3), a first annular groove used for mounting the first rod sealing ring (4) is formed in the inner circumference of the guide sleeve, a second annular groove used for mounting the second rod sealing ring (6) is further formed, an oil hole (10) is formed between the two-way sealing ring (5) and the second rod sealing ring (6), and one end of the oil hole (10) is communicated with the inner part of the guide sleeve, the other end is linked together with the uide bushing outside, sealing washer (4) for the first pole with sealing washer (6) for the second pole are lip seal, sealing washer (4) for the first pole with the lip of sealing washer (6) is along the axial setting of cylinder (2) for the second pole, the lip of sealing washer (4) for the first pole is towards the outside of cylinder (2), the lip of sealing washer (6) is towards the inboard of cylinder (2) for the second pole.
2. The cylinder guide sleeve structure according to claim 1, characterized in that: the width of the first annular groove is larger than that of the first rod sealing ring (4), and the width of the second annular groove is larger than that of the second rod sealing ring (6).
3. The cylinder guide sleeve structure according to claim 1 or 2, characterized in that: the piston rod sealing structure is characterized in that a first check ring (11) is arranged in the first annular groove, a second check ring (12) is arranged in the second annular groove, the first check ring (11) and the second check ring (12) are sleeved on the piston rod (9), the first check ring (11) is located on one side, close to the two-way sealing ring (5), of the first rod sealing ring (4), and the second check ring (12) is located on one side, far away from the guide ring (7), of the second rod sealing ring (6).
4. The cylinder guide sleeve structure according to claim 1, characterized in that: and the first rod sealing ring (4) and the second rod sealing ring (6) are both U-shaped sealing rings in lip-shaped sealing rings.
5. The cylinder guide sleeve structure according to claim 1, characterized in that: the inner circumference of the guide sleeve is fixedly provided with a sliding sleeve (13), the sliding sleeve (13) is sleeved on the piston rod (9), and the sliding sleeve (13) is positioned on one side, away from the guide ring (7), of the second buffer ring (8).
6. The cylinder guide sleeve structure according to claim 5, wherein: and a steel wire check ring (14) for fixing the sliding sleeve (13) is further arranged in the guide sleeve, and the front end of the steel wire check ring (14) is abutted against the rear end face of the sliding sleeve (13).
7. The cylinder guide sleeve structure according to claim 1, characterized in that: fixedly connected with flange (15) can be dismantled to the front end of uide bushing, flange (15) suit is on the uide bushing.
8. The cylinder guide sleeve structure according to claim 7, wherein: the outer circumference of the guide sleeve is provided with a step surface (16), the step surface (16) is perpendicular to the central axis of the piston rod (9), the step surface (16) is located at the front end of the guide sleeve, and the flange (15) is abutted to the step surface (16) so as to position the flange (15).
9. The cylinder guide sleeve structure according to claim 1, characterized in that: an oil port seat (17) is arranged on the outer circumference of the guide sleeve, an oil outlet (18) is arranged on the oil port seat (17), and the oil outlet (18) is communicated with the oil hole (10).
10. The cylinder guide sleeve structure according to claim 9, wherein: an oil plug (19) is arranged on the oil outlet (18) in a plugged mode, and the oil plug (19) is in threaded connection with the oil port base (17) so that the oil plug (19) can be mounted and dismounted conveniently.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121290476.5U CN215172174U (en) | 2021-06-10 | 2021-06-10 | Oil cylinder guide sleeve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121290476.5U CN215172174U (en) | 2021-06-10 | 2021-06-10 | Oil cylinder guide sleeve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215172174U true CN215172174U (en) | 2021-12-14 |
Family
ID=79388544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121290476.5U Active CN215172174U (en) | 2021-06-10 | 2021-06-10 | Oil cylinder guide sleeve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215172174U (en) |
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2021
- 2021-06-10 CN CN202121290476.5U patent/CN215172174U/en active Active
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