CN219911370U - Sealing element for multistage hydraulic cylinder - Google Patents
Sealing element for multistage hydraulic cylinder Download PDFInfo
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- CN219911370U CN219911370U CN202321175296.1U CN202321175296U CN219911370U CN 219911370 U CN219911370 U CN 219911370U CN 202321175296 U CN202321175296 U CN 202321175296U CN 219911370 U CN219911370 U CN 219911370U
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- hydraulic cylinder
- cylinder head
- head
- cover
- internal thread
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- 238000007789 sealing Methods 0.000 title claims abstract description 43
- 210000005056 cell body Anatomy 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a sealing element for a multistage hydraulic cylinder, which comprises a hydraulic cylinder head, wherein a hydraulic cylinder barrel is arranged on one side of the hydraulic cylinder head, a hydraulic cylinder cover is arranged on the other side of the hydraulic cylinder head, a first internal thread is formed on the inner side of a wall plate of one end, far away from the hydraulic cylinder barrel, of the hydraulic cylinder head, a first external thread matched with the first internal thread is formed on the hydraulic cylinder cover, the hydraulic cylinder cover is connected to the hydraulic cylinder head through the first external thread, and a piston rod is fixedly connected to one side wall, close to the hydraulic cylinder head, of the hydraulic cylinder cover. According to the utility model, the internal thread is arranged on the cylinder head, the external thread matched with the internal thread of the cylinder head is arranged on the cylinder cover, and the cylinder cover and the cylinder head are connected through the matching of the internal thread and the external thread, so that the connection of the cylinder head and the cylinder cover can be realized, meanwhile, the cylinder head and the cylinder cover are ensured to have good tightness, the cylinder cover is convenient to disassemble and assemble, and the sealing sleeve is convenient to replace.
Description
Technical Field
The utility model belongs to the technical field of hydraulic cylinders, and particularly relates to a sealing element for a multi-stage hydraulic cylinder.
Background
The hydraulic cylinder is a hydraulic actuator which converts hydraulic energy into mechanical energy and performs linear reciprocating motion. Is widely applied to hydraulic systems of various machines. The hydraulic cylinder basically consists of a cylinder barrel, a cylinder cover, a piston rod, a sealing device, a buffer device and an exhaust device.
The utility model provides a sealing member for multistage hydraulic cylinder to patent number CN202222220468.4 discloses, includes the cylinder head, the left end fixed mounting of cylinder head has the cylinder, square groove has been seted up in the left side of cylinder head, slidable mounting has the cylinder cap in the square groove, round groove has been seted up in the left side of square groove, the left side fixed mounting of cylinder cap has the piston rod, the piston rod runs through round groove and extends to in the cylinder, vertical groove has all been seted up to cylinder cap top and bottom, and all slidable mounting has the cardboard in two vertical grooves, the draw-in groove has all been seted up on the top inner wall and the bottom inner wall of square groove, two cardboard respectively with the draw-in groove movable clamping that corresponds, transverse groove has all been seted up on the right side of two wedge cardboard, and equal slidable mounting has the bayonet lock in two transverse grooves, the right side fixed mounting of bayonet lock has the pull rod, the right-hand member fixed mounting of pull rod has the pull ring. The cylinder head fixing device is reasonable in structural design, and the fixing of the cylinder head is relieved through the cooperation of the pull rod and the clamping plate, so that the sealing sleeve in the cylinder head is conveniently taken out and replaced, continuous use is facilitated, and the reliability is high.
When the cylinder cover is used, the cylinder cover can be removed only by the cooperation of the components, so that the sealing sleeve can be replaced, and the cylinder cover is troublesome to detach due to the fact that the cylinder cover is detached and assembled under the cooperation of the components.
Accordingly, in view of the above-described technical problems, it is necessary to provide a seal for a multistage hydraulic cylinder.
Disclosure of Invention
The object of the present utility model is to provide a seal for a multistage hydraulic cylinder to solve the above-mentioned problems.
In order to achieve the above object, an embodiment of the present utility model provides the following technical solution:
a sealing member for multistage hydraulic cylinder, including the pneumatic cylinder head, the pneumatic cylinder is installed to one side of pneumatic cylinder head, the cylinder cap is installed to the opposite side of pneumatic cylinder head, first internal thread has been seted up to the wallboard inboard of the one end that the pneumatic cylinder was kept away from to the pneumatic cylinder head, set up on the cylinder cap with first internal thread assorted first external screw thread, the cylinder cap passes through first external screw thread threaded connection on the pneumatic cylinder head, fixedly connected with piston rod on the cylinder cap is close to a lateral wall of pneumatic cylinder head, the one end that the cylinder cap was kept away from to the piston rod runs through in the pneumatic cylinder, be formed with first cell body between pneumatic cylinder head and the piston rod, install the seal cover in the first cell body.
Further, a first sealing gasket is arranged between one side, close to the hydraulic cylinder head, of the hydraulic cylinder cover and the hydraulic cylinder head, and the first sealing gasket is used for improving the tightness between the hydraulic cylinder head and the hydraulic cylinder cover.
Further, a second groove body is arranged on one side, close to the hydraulic cylinder barrel, of the hydraulic cylinder head, and the hydraulic cylinder barrel is installed in the second groove body.
Further, the second internal thread is arranged on the inner side of the wall plate, close to one end of the hydraulic cylinder barrel, the second external thread matched with the second internal thread is arranged on the hydraulic cylinder barrel, and the hydraulic cylinder barrel is connected to the hydraulic cylinder barrel through the second external thread.
Further, install the second sealed pad between cylinder head and the hydraulic cylinder, the second sealed pad is used for increasing the leakproofness between cylinder head and the hydraulic cylinder.
Further, a connecting rod is fixedly connected to the outer side wall of the hydraulic cylinder cover.
Compared with the prior art, the utility model has the following advantages:
according to the utility model, the internal thread is arranged on the cylinder head, the external thread matched with the internal thread of the cylinder head is arranged on the cylinder cover, and the cylinder cover and the cylinder head are connected through the matching of the internal thread and the external thread, so that the connection of the cylinder head and the cylinder cover can be realized, meanwhile, the cylinder head and the cylinder cover are ensured to have good tightness, the cylinder cover is convenient to disassemble and assemble, and the sealing sleeve is convenient to replace.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.
FIG. 1 is a front view of a seal for a multi-stage hydraulic ram in accordance with one embodiment of the utility model;
FIG. 2 is a perspective view of a seal for a multi-stage hydraulic ram in accordance with one embodiment of the present utility model;
FIG. 3 is an exploded view of a seal for a multi-stage hydraulic ram in accordance with one embodiment of the present utility model;
fig. 4 is a cross-sectional view of a seal for a multi-stage hydraulic ram in accordance with one embodiment of the utility model.
In the figure: 1. the hydraulic cylinder head comprises a hydraulic cylinder head body, a hydraulic cylinder barrel, a piston rod, a first groove body, a sealing sleeve, a hydraulic cylinder cover, a first external thread, a first internal thread, a first sealing gasket, a second groove body, a second external thread, a second internal thread, a second sealing gasket and a connecting rod.
Detailed Description
The present utility model will be described in detail below with reference to the embodiments shown in the drawings. The embodiments are not intended to limit the utility model, but structural, methodological or functional modifications from the embodiments are within the scope of the utility model.
The utility model discloses a sealing element for a multistage hydraulic cylinder, wherein the sealing element is required to be replaced frequently in the hydraulic cylinder, when a sealing sleeve is required to be replaced due to the traditional integral cylinder head design, the whole cylinder head is required to be detached, and then the sealing element is taken out, so that the sealing element is troublesome to replace, and the sealing element for the multistage hydraulic cylinder is convenient to replace.
Referring to fig. 1-4, the hydraulic cylinder head comprises a hydraulic cylinder head 1, a hydraulic cylinder barrel 2 is arranged on one side of the hydraulic cylinder head 1, a hydraulic cylinder cover 6 is arranged on the other side of the hydraulic cylinder head 1, a piston rod 3 is fixedly connected to one side wall, close to the hydraulic cylinder head 1, of the hydraulic cylinder cover 6, and one end, far away from the hydraulic cylinder cover 6, of the piston rod 3 penetrates through the hydraulic cylinder barrel 2. The hydraulic cylinder head 1, the hydraulic cylinder barrel 2 and the hydraulic cylinder cover 6 are basic components of the hydraulic cylinder and are main components of the hydraulic cylinder.
Referring to fig. 3 and 4, a first internal thread 8 is formed on the inner side of a wall plate of one end, far away from the hydraulic cylinder barrel 2, of the hydraulic cylinder head 1, a first external thread 7 matched with the first internal thread 8 is formed on the hydraulic cylinder cover 6, and the hydraulic cylinder cover 6 is in threaded connection with the hydraulic cylinder head 1 through the first external thread 7. In order to be convenient for install the cylinder cap 6, through having seted up first external screw thread 7 on cylinder cap 6, seted up first internal screw thread 8 with first external screw thread 7 assorted in the lateral wall inboard of cylinder cap 1, can be with cylinder cap 6 threaded connection on cylinder cap 1 through first external screw thread 7. Because the hydraulic cylinder cover 6 is in threaded connection with the hydraulic cylinder head 1, the hydraulic cylinder cover 6 can be disassembled and assembled from the hydraulic cylinder head 1 through rotation, so that the hydraulic cylinder cover 6 is convenient to disassemble and assemble.
Referring to fig. 4, a first sealing gasket 9 is arranged between one side of the hydraulic cylinder head 6, which is close to the hydraulic cylinder head 1, and the hydraulic cylinder head 1, the first sealing gasket 9 is used for increasing the tightness between the hydraulic cylinder head 1 and the hydraulic cylinder head 6, and a connecting rod 14 is fixedly connected to the outer side wall of the hydraulic cylinder head 6. Because the hydraulic cylinder head 1 and the hydraulic cylinder cover 6 are connected through threads, in order to enable good sealing performance to be achieved between the hydraulic cylinder head 1 and the hydraulic cylinder cover 6 after being connected, the sealing performance between the hydraulic cylinder head 1 and the hydraulic cylinder cover 6 is improved through the first sealing gasket 9 by installing the first sealing gasket 9 between the hydraulic cylinder head 1 and the hydraulic cylinder cover 6. Because the hydraulic cylinder cover 6 needs to be fastened when being mounted on the hydraulic cylinder head 1, in order to be convenient for fastening the hydraulic cylinder cover 6, the hydraulic cylinder cover 6 can be conveniently fastened through the connecting rod 14 by fixedly connecting the connecting rod 14 on the outer side wall of the hydraulic cylinder cover 6.
Referring to fig. 3 and 4, a first groove body 4 is formed between the hydraulic cylinder head 1 and the piston rod 3, and a sealing sleeve 5 is installed in the first groove body 4. When the hydraulic cylinder is in use, the sealing performance needs to be ensured, and therefore, the sealing member is installed inside, and the first groove body 4 is the sealing member of the hydraulic cylinder, and the sealing sleeve 5 acts on the piston rod 3, so that the piston rod 3 is worn. The seal sleeve 5 is easy to damage under the abrasion of the piston rod 3, so that the seal sleeve 5 needs to be replaced regularly, the hydraulic cylinder cover 6 needs to be opened when the seal sleeve 5 is replaced, and the seal sleeve 5 is convenient to replace due to the convenience in dismounting of the hydraulic cylinder cover 6.
Referring to fig. 3 and 4, a second groove body 10 is provided on one side of the hydraulic cylinder head 1 near the hydraulic cylinder 2, and the hydraulic cylinder 2 is installed in the second groove body 10. The inner side of the wall plate, which is close to one end of the hydraulic cylinder barrel 2, of the hydraulic cylinder barrel 1 is provided with a second internal thread 12, the hydraulic cylinder barrel 2 is provided with a second external thread 11 matched with the second internal thread 12, and the hydraulic cylinder barrel 2 is in threaded connection with the hydraulic cylinder barrel 1 through the second external thread 11. In order to facilitate the installation of the hydraulic cylinder barrel 2, the hydraulic cylinder barrel 2 is provided with the second external thread 11, the inner side wall of the hydraulic cylinder head 1 is provided with the second internal thread 12 matched with the second external thread 11, and the hydraulic cylinder barrel 2 can be installed on the hydraulic cylinder head 1 through the second external thread 11.
Further, a second gasket 13 is installed between the hydraulic cylinder head 1 and the hydraulic cylinder 2, and the second gasket 13 is used for increasing the tightness between the hydraulic cylinder head 1 and the hydraulic cylinder 2. Meanwhile, in order to ensure the tightness between the hydraulic cylinder head 1 and the hydraulic cylinder 2 when the hydraulic cylinder 2 is mounted on the hydraulic cylinder head 1, a second sealing gasket 13 is mounted between the hydraulic cylinder head 1 and the hydraulic cylinder 2, and the tightness between the hydraulic cylinder head 1 and the hydraulic cylinder 2 is increased through the second sealing gasket 13.
When the multistage hydraulic cylinder is in use, when the sealing sleeve 5 in the multistage hydraulic cylinder is damaged and needs to be replaced, the hydraulic cylinder cover 6 is driven to rotate through the connecting rod 14 so as to detach the hydraulic cylinder cover 6 from the hydraulic cylinder head 1, and then the sealing sleeve 5 is pulled out of the first groove body 4 through tools such as tweezers so as to replace the sealing sleeve 5; after the sealing sleeve 5 is replaced, the hydraulic cylinder cover 6 is installed in the hydraulic cylinder head 1, and the hydraulic cylinder cover 6 is fastened on the hydraulic cylinder head 1 through the connecting rod 14.
The technical scheme shows that the utility model has the following beneficial effects:
according to the utility model, the internal thread is arranged on the cylinder head, the external thread matched with the internal thread of the cylinder head is arranged on the cylinder cover, and the cylinder cover and the cylinder head are connected through the matching of the internal thread and the external thread, so that the connection of the cylinder head and the cylinder cover can be realized, meanwhile, the cylinder head and the cylinder cover are ensured to have good tightness, the cylinder cover is convenient to disassemble and assemble, and the sealing sleeve is convenient to replace.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment contains only one independent technical solution, and that such description is provided for clarity only, and that the technical solutions of the embodiments may be appropriately combined to form other embodiments that will be understood by those skilled in the art.
Claims (6)
1. A sealing member for multistage hydraulic cylinder, includes hydraulic cylinder head (1), its characterized in that, hydraulic cylinder (2) are installed to one side of hydraulic cylinder head (1), cylinder cap (6) are installed to the opposite side of hydraulic cylinder head (1), first internal thread (8) have been seted up to the wallboard inboard of the one end that hydraulic cylinder (2) was kept away from to hydraulic cylinder head (1), set up first external screw thread (7) with first internal screw thread (8) assorted on cylinder cap (6), cylinder cap (6) are through first external screw thread (7) threaded connection on hydraulic cylinder head (1), fixedly connected with piston rod (3) on one lateral wall that hydraulic cylinder cap (6) are close to hydraulic cylinder head (1), the one end that hydraulic cylinder cap (6) were kept away from to piston rod (3) runs through in hydraulic cylinder (2), install seal cover (5) in first cell body (4).
2. The seal for a multistage hydraulic cylinder according to claim 1, characterized in that a first gasket (9) is provided between the side of the hydraulic cylinder head (6) close to the hydraulic cylinder head (1) and the hydraulic cylinder head (1), the first gasket (9) being used for increasing the tightness between the hydraulic cylinder head (1) and the hydraulic cylinder head (6).
3. The sealing element for the multistage hydraulic cylinder according to claim 1, characterized in that a second groove body (10) is arranged on one side of the hydraulic cylinder head (1) close to the hydraulic cylinder barrel (2), and the hydraulic cylinder barrel (2) is installed in the second groove body (10).
4. A sealing element for a multistage hydraulic cylinder according to claim 3, characterized in that the inner side of the wall plate of the hydraulic cylinder head (1) close to one end of the hydraulic cylinder (2) is provided with a second internal thread (12), the hydraulic cylinder (2) is provided with a second external thread (11) matched with the second internal thread (12), and the hydraulic cylinder (2) is connected to the hydraulic cylinder head (1) through the second external thread (11) in a threaded manner.
5. The seal for a multistage hydraulic cylinder according to claim 4, characterized in that a second gasket (13) is mounted between the hydraulic cylinder head (1) and the hydraulic cylinder tube (2), the second gasket (13) being used to increase the tightness between the hydraulic cylinder head (1) and the hydraulic cylinder tube (2).
6. The seal for a multistage hydraulic cylinder according to claim 1, characterized in that a connecting rod (14) is fixedly connected to the outer side wall of the hydraulic cylinder head (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321175296.1U CN219911370U (en) | 2023-05-16 | 2023-05-16 | Sealing element for multistage hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321175296.1U CN219911370U (en) | 2023-05-16 | 2023-05-16 | Sealing element for multistage hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219911370U true CN219911370U (en) | 2023-10-27 |
Family
ID=88463850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321175296.1U Active CN219911370U (en) | 2023-05-16 | 2023-05-16 | Sealing element for multistage hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219911370U (en) |
-
2023
- 2023-05-16 CN CN202321175296.1U patent/CN219911370U/en active Active
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