CN213870509U - Hydraulic cylinder top cap with leak protection - Google Patents
Hydraulic cylinder top cap with leak protection Download PDFInfo
- Publication number
- CN213870509U CN213870509U CN202022505615.3U CN202022505615U CN213870509U CN 213870509 U CN213870509 U CN 213870509U CN 202022505615 U CN202022505615 U CN 202022505615U CN 213870509 U CN213870509 U CN 213870509U
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- China
- Prior art keywords
- buffer
- cylinder
- buffer board
- pad
- cylinder body
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000002184 metal Substances 0.000 claims abstract description 18
- 229920001971 elastomer Polymers 0.000 claims abstract description 15
- 239000010720 hydraulic oil Substances 0.000 claims description 9
- 229920006306 polyurethane fiber Polymers 0.000 claims description 3
- 238000012856 packing Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
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Abstract
The utility model discloses a hydraulic cylinder top cap with leak protection nature, the power distribution cylinder comprises a cylinder body, threaded connection has the cylinder cap on the surface of cylinder body, the internal surface sliding connection of cylinder cap has the piston rod, the side of cylinder cap is through a plurality of bolts and cylinder body fixed connection, and is a plurality of the surface of bolt all is equipped with metal gasket, spring washer, the gasket groove has been seted up to the lower extreme internal surface of cylinder cap, the inside in gasket groove is equipped with the rubber packing ring, the first buffer board of last fixed surface of cylinder cap is connected with, the upper surface of first buffer board is equipped with first blotter, the top of first buffer board is equipped with the second buffer board, through a plurality of buffer spring swing joint between first buffer board and the second buffer board. The utility model discloses a hydraulic cylinder top cap is more firm with being connected of cylinder body, has avoided not hard up of threaded connection, and through the protection cylinder cap, has avoided the cylinder cap to be connected with the cylinder body that results in by the striking deformation not hard up.
Description
Technical Field
The utility model relates to a hydraulic cylinder technical field especially relates to a hydraulic cylinder top cap with leak protection nature.
Background
The hydraulic cylinder forces a cylinder rod to move upwards by enabling hydraulic oil to enter the hydraulic cylinder through a one-way valve (the hydraulic oil entering the hydraulic cylinder cannot back due to the reason of a single valve), then a worker continuously enables the hydraulic oil to continuously enter the hydraulic cylinder, the hydraulic cylinder continuously rises, the hydraulic valve is opened when the hydraulic cylinder is about to fall, and the hydraulic oil returns to the oil tank.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a hydraulic oil cylinder top cover with leak resistance.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a hydraulic cylinder top cap with leak protection nature, includes the cylinder body, threaded connection has the cylinder cap on the surface of cylinder body, the internal surface sliding connection of cylinder cap has the piston rod, a plurality of through a plurality of bolts and cylinder body fixed connection the side of cylinder cap the surface of bolt all is equipped with metal gasket, spring washer, the gasket groove has been seted up to the lower extreme internal surface of cylinder cap, the inside in gasket groove is equipped with the rubber packing ring, the last fixed surface of cylinder cap is connected with first buffer board, the upper surface of first buffer board is equipped with first blotter, the top of first buffer board is equipped with the second buffer board, through a plurality of buffer spring swing joint between first buffer board and the second buffer board, the lower surface of second buffer board is equipped with the second blotter, the upper surface of second buffer board is equipped with the third blotter.
Preferably, the metal gasket is located between the cylinder head and the bolt, and the spring washer is located between the bolt and the metal gasket.
Preferably, the thickness of the rubber gasket is two to three millimeters greater than the gasket groove.
Preferably, the inner surface of the first buffer pad and the position of the second buffer pad close to the buffer spring are both provided with spring holes.
Preferably, the shape of first buffer board, second buffer board, first blotter, second blotter, third blotter is the ring shape structure, first blotter, second blotter, third blotter all adopt the rubber material.
Preferably, the upper surface of the third buffer pad is provided with a wear pad, and the wear pad is made of polyurethane fiber.
Compared with the prior art, the beneficial effects of the utility model are that:
1. in the utility model, the looseness of the cylinder cover and the cylinder body which are connected by the screw thread is avoided by arranging the bolt, the metal gasket and the spring gasket, and the sealing performance of the joint of the cylinder body and the cylinder cover is ensured by the gasket groove and the rubber gasket;
2. in the utility model, the cylinder cover is protected from being deformed by impact by arranging the first buffer plate, the second buffer plate and the object connected with the buffer spring piston rod to directly collide with the cylinder cover, so that the loose connection between the cylinder cover and the cylinder body is avoided, the first buffer pad and the second buffer pad avoid the damage of the first buffer plate and the second buffer plate caused by collision, the third buffer pad is not damaged by the impact of the object connected with the piston rod, and the third buffer pad is protected by the wear-resistant pad;
to sum up, the utility model discloses a hydraulic cylinder top cap is more firm with being connected of cylinder body, has avoided not hard up of threaded connection, and through the protection cylinder cap, has avoided the cylinder cap to be connected with the cylinder body that the striking warp leads to and is not hard up.
Drawings
Fig. 1 is a schematic view of the installation of a cylinder cover of a hydraulic cylinder top cover with leak-proof performance provided by the utility model;
fig. 2 is a schematic structural view of a hydraulic cylinder top cover with leak-proof performance provided by the present invention;
fig. 3 is a schematic view illustrating the installation of the first buffer plate and the cylinder cover of the hydraulic cylinder top cap with leak-proof performance according to the present invention;
FIG. 4 is a front view of a first buffer plate of a hydraulic cylinder top cap with leak-proof performance according to the present invention;
fig. 5 is a schematic view illustrating the installation of a wear pad in the second embodiment of the hydraulic cylinder top cap with leak-proof performance according to the present invention.
In the figure: the cylinder comprises a cylinder body 1, a cylinder cover 2, a piston rod 3, a bolt 4, a metal gasket 5, a spring washer 6, a washer groove 7, a rubber washer 8, a first buffer plate 9, a first buffer pad 10, a second buffer plate 11, a buffer spring 12, a second buffer pad 13, a spring hole 14, a third buffer pad 15 and a wear-resistant pad 16.
Detailed Description
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.
The first embodiment is as follows:
referring to fig. 1-4, a hydraulic cylinder top cover with leak-proof performance comprises a cylinder body 1, a cylinder cover 2 is in threaded connection with the upper end of the outer surface of the cylinder body 1, a piston rod 3 is in sliding connection with the inner surface of the cylinder cover 2, the side surface of the cylinder cover 2 is fixedly connected with the cylinder body 1 through a plurality of bolts 4, the threaded connection between the cylinder cover 2 and the cylinder body 1 is prevented from loosening, the outer surfaces of the bolts 4 are respectively provided with a metal gasket 5 and a spring gasket 6, the connection between the bolts 4 is prevented from loosening, the inner surface of the lower end of the cylinder cover 2 is provided with a gasket groove 7, the gasket groove 7 is internally provided with a rubber gasket 8, the sealing performance between the cylinder body 1 and the cylinder cover 2 is ensured, the upper surface of the cylinder cover 2 is fixedly connected with a first buffer plate 9, the upper surface of the first buffer plate 9 is provided with a first buffer pad 10, a second buffer plate 11 is arranged above the first buffer plate 9, and the direct collision between an object connected with the piston rod 3 and the cylinder cover 2 is avoided, protected cylinder cap 2 not by collision damage, and then guaranteed the stability that cylinder cap 2 and cylinder body 1 are connected, through a plurality of buffer spring 12 swing joint between first buffer board 9 and the second buffer board 11, the lower surface of second buffer board 11 is equipped with second blotter 13, the two damage that first buffer board 9 and 11 direct impact of second buffer board lead to has been avoided, the upper surface of second buffer board 11 is equipped with third blotter 15, the object direct impact damage that second buffer board 11 is not connected by piston rod 3 has been protected.
Wherein the metal gasket 5 is positioned between the cylinder head 2 and the bolt 4, and the spring washer 6 is positioned between the bolt 4 and the metal gasket 5.
Wherein, the thickness of the rubber gasket 8 is two to three millimeters greater than the gasket groove 7.
The inner surface of the first buffer pad 10 is provided with spring holes 14 at positions close to the buffer springs 12 and the inner surface of the second buffer pad 13 is provided with spring holes 14 at positions close to the buffer springs 12.
Wherein, the shape of first buffer board 9, second buffer board 11, first blotter 10, second blotter 13, third blotter 15 is the ring shape structure, and first blotter 10, second blotter 13, third blotter 15 all adopt rubber material.
Example two:
referring to fig. 1-5, a hydraulic cylinder top cover with leak-proof performance comprises a cylinder body 1, a cylinder cover 2 is in threaded connection with the upper end of the outer surface of the cylinder body 1, a piston rod 3 is in sliding connection with the inner surface of the cylinder cover 2, the side surface of the cylinder cover 2 is fixedly connected with the cylinder body 1 through a plurality of bolts 4, the threaded connection between the cylinder cover 2 and the cylinder body 1 is prevented from loosening, the outer surfaces of the bolts 4 are respectively provided with a metal gasket 5 and a spring gasket 6, the connection between the bolts 4 is prevented from loosening, the inner surface of the lower end of the cylinder cover 2 is provided with a gasket groove 7, the gasket groove 7 is internally provided with a rubber gasket 8, the sealing performance between the cylinder body 1 and the cylinder cover 2 is ensured, the upper surface of the cylinder cover 2 is fixedly connected with a first buffer plate 9, the upper surface of the first buffer plate 9 is provided with a first buffer pad 10, a second buffer plate 11 is arranged above the first buffer plate 9, and the direct collision between an object connected with the piston rod 3 and the cylinder cover 2 is avoided, protected cylinder cap 2 not by collision damage, and then guaranteed the stability that cylinder cap 2 and cylinder body 1 are connected, through a plurality of buffer spring 12 swing joint between first buffer board 9 and the second buffer board 11, the lower surface of second buffer board 11 is equipped with second blotter 13, the two damage that first buffer board 9 and 11 direct impact of second buffer board lead to has been avoided, the upper surface of second buffer board 11 is equipped with third blotter 15, the object direct impact damage that second buffer board 11 is not connected by piston rod 3 has been protected.
Wherein the metal gasket 5 is positioned between the cylinder head 2 and the bolt 4, and the spring washer 6 is positioned between the bolt 4 and the metal gasket 5.
Wherein, the thickness of the rubber gasket 8 is two to three millimeters greater than the gasket groove 7.
The inner surface of the first buffer pad 10 is provided with spring holes 14 at positions close to the buffer springs 12 and the inner surface of the second buffer pad 13 is provided with spring holes 14 at positions close to the buffer springs 12.
Wherein, the shape of first buffer board 9, second buffer board 11, first blotter 10, second blotter 13, third blotter 15 is the ring shape structure, and first blotter 10, second blotter 13, third blotter 15 all adopt rubber material.
Wherein, the upper surface of the third buffer 15 is provided with a wear pad 16, and the wear pad 16 is made of polyurethane fiber, so as to protect the third buffer 15.
The working principle is as follows: when in use, the cylinder cover 2 is fixedly connected with the cylinder body 1 through threads, the cylinder cover 2 and the cylinder body 1 are reinforced again by the bolt 4, the threaded connection between the cylinder cover 2 and the cylinder body 1 is prevented from loosening, when the bolt 4 is screwed down, two tips of the spring washer 6 respectively penetrate into the bolt 4 and the metal gasket 5, the bolt 4 and the metal gasket 5 are interlocked, the loosening of the connection of the bolt 4 is prevented, the metal gasket 5 prevents the tips of the spring washer 6 from penetrating into the cylinder body 1, the damage of the spring washer 6 to the cylinder body 1 is avoided, when the piston rod 3 returns, an object connected on the piston rod 3 extrudes the second buffer plate 11, the impact force of the object on the cylinder cover 2 is reduced by utilizing the buffer spring 12, the connection loosening of the cylinder cover 2 and the cylinder body 1 caused by the impact damage of the object on the cylinder cover 2 is avoided, the first buffer plate 10 and the second buffer plate 13 avoid the collision damage of the first buffer plate 9 and the second buffer plate 11, third blotter 15 has protected second buffer board 11 not to be destroyed by the object collision that piston rod 3 is connected, adopts the fibrous wear pad 16 of polyurethane to have high elasticity and wearability, has protected third blotter 11, the utility model discloses a hydraulic cylinder top cap is more firm with being connected of cylinder body 1, has avoided threaded connection not hard up, and through protection cylinder cap 2, has avoided cylinder cap 2 to be connected with the cylinder body that the striking warp leads to and is not hard up.
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 (6)
1. The hydraulic oil cylinder top cover with leak resistance comprises a cylinder body (1) and is characterized in that a cylinder cover (2) is in threaded connection with the upper end of the outer surface of the cylinder body (1), a piston rod (3) is in sliding connection with the inner surface of the cylinder cover (2), the side face of the cylinder cover (2) is fixedly connected with the cylinder body (1) through a plurality of bolts (4), a metal gasket (5) and a spring washer (6) are arranged on the outer surface of each bolt (4), a gasket groove (7) is formed in the inner surface of the lower end of the cylinder cover (2), a rubber washer (8) is arranged inside the gasket groove (7), a first buffer plate (9) is fixedly connected with the upper surface of the cylinder cover (2), a first buffer pad (10) is arranged on the upper surface of the first buffer plate (9), a second buffer plate (11) is arranged above the first buffer plate (9), first buffer board (9) and second buffer board (11) are through a plurality of buffer spring (12) swing joint between, the lower surface of second buffer board (11) is equipped with second blotter (13), the upper surface of second buffer board (11) is equipped with third blotter (15).
2. A leak-proof hydraulic ram head cover according to claim 1, characterised in that the metal gasket (5) is located between the cylinder head (2) and the bolt (4), and the spring washer (6) is located between the bolt (4) and the metal gasket (5).
3. A leak-proof hydraulic ram head cover according to claim 1, characterised in that the rubber gasket (8) has a thickness two to three millimetres greater than the gasket groove (7).
4. The hydraulic oil cylinder top cover with leak tightness according to claim 1, characterized in that the inner surface of the first buffer cushion (10) is provided with spring holes (14) at the position close to the buffer spring (12) and the inner surface of the second buffer cushion (13) is provided with spring holes (14) at the position close to the buffer spring (12).
5. The hydraulic oil cylinder top cover with leak tightness according to claim 1, wherein the first buffer plate (9), the second buffer plate (11), the first buffer pad (10), the second buffer pad (13) and the third buffer pad (15) are all in a circular ring structure, and the first buffer pad (10), the second buffer pad (13) and the third buffer pad (15) are all made of rubber.
6. The hydraulic oil cylinder top cover with leak tightness according to claim 1, characterized in that the upper surface of the third buffer pad (15) is provided with a wear pad (16), and the wear pad (16) is made of polyurethane fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022505615.3U CN213870509U (en) | 2020-11-03 | 2020-11-03 | Hydraulic cylinder top cap with leak protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022505615.3U CN213870509U (en) | 2020-11-03 | 2020-11-03 | Hydraulic cylinder top cap with leak protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213870509U true CN213870509U (en) | 2021-08-03 |
Family
ID=77052084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022505615.3U Expired - Fee Related CN213870509U (en) | 2020-11-03 | 2020-11-03 | Hydraulic cylinder top cap with leak protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213870509U (en) |
-
2020
- 2020-11-03 CN CN202022505615.3U patent/CN213870509U/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: 20210803 |