CN217107680U - Sealing device of hydraulic cylinder - Google Patents
Sealing device of hydraulic cylinder Download PDFInfo
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- CN217107680U CN217107680U CN202122766817.8U CN202122766817U CN217107680U CN 217107680 U CN217107680 U CN 217107680U CN 202122766817 U CN202122766817 U CN 202122766817U CN 217107680 U CN217107680 U CN 217107680U
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Abstract
The utility model discloses a sealing device of pneumatic cylinder, comprising a cylinder body, the cylinder body tip is connected with sealed lid through the mounting, sealed lid bottom fixedly connected with sealing ring is located the sealing ring bottom the seal groove with the sealing ring adaptation is seted up to the cylinder body inner wall, is equipped with sealing mechanism in the seal groove, is located sealed lid bottom be equipped with the cylinder cap in the cylinder body, sealed lid bottom fixedly connected with fixed block, the fixed slot with the fixed block adaptation is seted up at the cylinder cap top, the fixed slot bottom is connected with the sliding block through support piece. The utility model discloses a sealing mechanism who sets up, when first rubber gas ring received the extrusion of sealing ring, its inside gas can enter into the second rubber gas ring through the rubber trachea in to fill the gap between closing plate and the cylinder body, alright avoid the inside liquid oil of cylinder body problem of leaking to appear, guarantee the normal use of pneumatic cylinder.
Description
Technical Field
The utility model relates to a hydraulic stem sealing device technical field especially relates to a sealing device of pneumatic cylinder.
Background
The hydraulic cylinder is a hydraulic actuating element which converts hydraulic energy into mechanical energy and does linear reciprocating motion (or swinging motion), has simple structure and reliable work, can omit a speed reducer when realizing reciprocating motion, has no transmission clearance, and moves stably, thereby being widely applied to hydraulic systems of various machines.
The problem that the leakage of the internal liquid oil is easily caused in the process of sealing the hydraulic cylinder by the conventional hydraulic cylinder sealing device, and the hydraulic cylinder cannot be normally used is further caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects in the prior art and providing a sealing device of a hydraulic cylinder.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a sealing device of pneumatic cylinder, includes the cylinder body, the cylinder body tip is connected with sealed lid through the mounting, sealed lid bottom fixedly connected with sealing ring is located the sealing ring bottom the seal groove with the sealing ring adaptation is seted up to the cylinder body inner wall, is equipped with sealing mechanism in the seal groove, is located sealed lid bottom be equipped with the cylinder cap in the cylinder body, sealed lid bottom fixedly connected with fixed block, the fixed slot with the fixed block adaptation is seted up at the cylinder cap top, the fixed slot bottom is connected with the sliding block through support piece, the sliding block is connected with the slip semi-ring through linkage mechanism.
Preferably, the fixing member includes a fixing threaded rod threadedly coupled to the ends of the plurality of cylinder bodies, each of the fixing threaded rods penetrating the sealing cap and threadedly coupled thereto.
Preferably, sealing mechanism is including locating the first rubber gas ring in the seal groove, first rubber gas ring lateral wall runs through be equipped with the rubber trachea and rather than fixed connection, rubber trachea other end fixedly connected with second rubber gas ring.
Preferably, the supporting member comprises a plurality of supporting springs, one ends of the supporting springs are fixedly connected with the bottom of the fixing groove, and the other ends of the supporting springs are fixedly connected with the bottom of the sliding block.
Preferably, the link gear includes two fixed rotating shafts fixedly connected with the side wall of the sliding block, each fixed rotating shaft is connected with a connecting rod in a rotating manner, the other end of the connecting rod is connected with a sliding rotating shaft in a rotating manner, and the sliding rotating shaft is fixedly connected with the sliding half ring.
Compared with the prior art, the beneficial effects of the utility model are that:
through the sealing mechanism who sets up, when first rubber gas ring received the extrusion of sealing ring, its inside gas can enter into the second rubber gas ring through the rubber trachea to fill the gap between closing plate and the cylinder body, alright avoid the inside liquid oil of cylinder body problem of leaking to appear, guarantee the normal use of pneumatic cylinder.
Drawings
Fig. 1 is a cross-sectional view of a sealing device of a hydraulic cylinder according to the present invention;
fig. 2 is a perspective view of a linkage mechanism in the sealing device of a hydraulic cylinder according to the present invention;
fig. 3 is an enlarged view of a point a in fig. 1.
In the figure: the device comprises a sealing cover 1, a cylinder body 2, a sliding rotating shaft 3, a fixed threaded rod 4, a sealing ring 5, a first rubber air ring 6, a rubber air pipe 7, a second rubber air ring 8, a fixed block 9, a sliding block 10, a sliding half ring 11, a supporting spring 12, a fixed rotating shaft 13, a connecting rod 14 and a cylinder cover 15.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.
Referring to fig. 1-3, a sealing device of a hydraulic cylinder comprises a cylinder body 2, the end of the cylinder body 2 is connected with a sealing cover 1 through a fixing piece, further, the fixing piece comprises a plurality of fixed threaded rods 4 in threaded connection with the end of the cylinder body 2, each fixed threaded rod 4 penetrates through the sealing cover 1 and is in threaded connection with the sealing cover, and by arranging the plurality of fixed threaded rods 4, the stability of connection between the sealing cover 1 and the cylinder body 1 can be ensured, and the sealing is prevented from being loosened and affecting sealing;
the bottom of the sealing cover 1 is fixedly connected with a sealing ring 5, the inner wall of the cylinder body 2 positioned at the bottom of the sealing ring 5 is provided with a sealing groove matched with the sealing ring 5, a sealing mechanism is arranged in the sealing groove, further, the sealing mechanism comprises a first rubber gas ring 6 arranged in the sealing groove, the outer side wall of the first rubber gas ring 6 is provided with a rubber gas pipe 7 in a penetrating manner and is fixedly connected with the rubber gas pipe, the other end of the rubber gas pipe 7 is fixedly connected with a second rubber gas ring 8, and by arranging the sealing mechanism, a gap between the sealing cover 1 and the cylinder body 2 can be filled under the action of the second rubber gas ring 2, so that liquid oil in the cylinder body 1 is effectively prevented from leaking;
the cylinder cover 15 is arranged in the cylinder body 2 at the bottom of the sealing cover 1, the bottom of the sealing cover 1 is fixedly connected with the fixed block 9, the top of the cylinder cover 15 is provided with a fixed groove matched with the fixed block 9, the bottom of the fixed groove is connected with the sliding block 10 through a supporting piece, further, the supporting piece comprises a plurality of supporting springs 12, one ends of the supporting springs are fixedly connected with the bottom of the fixed groove, the other ends of the supporting springs 12 are fixedly connected with the bottom of the sliding block 10, and the supporting springs 12 are arranged, so that when the interior of the cylinder body 1 needs to be maintained, after the sealing cover 1 is disassembled, the sliding block 10 can rebound under the action of the supporting springs 12, the sliding half ring 11 can be retracted into the cylinder cover 15, and the quick disassembly of the cylinder cover 15 is realized;
the sliding block 10 is connected with a sliding half ring 11 through a linkage mechanism, further, the linkage mechanism comprises two fixed rotating shafts 13 fixedly connected with the side wall of the sliding block 10, each fixed rotating shaft 13 is rotatably connected with a connecting rod 14, the other end of each connecting rod 14 is rotatably connected with a sliding rotating shaft 3, each sliding rotating shaft 3 is fixedly connected with the sliding half ring 11, through the arrangement of the linkage mechanism, when the sealing cover 1 is installed on the cylinder body 1, the fixed block 9 can abut against the sliding block 10, and the sliding half ring 11 can be pushed out of the cylinder cover 15 through the linkage mechanism, so that multiple sealing of the cylinder body 2 is realized, and the sealing performance of the cylinder body 1 is improved.
The utility model discloses when installing, at first put sealed lid 1 with cylinder cap 15 in, later install sealed lid 1 to cylinder body 2 through rotating fixed threaded rod 4, later fixed block 9 can produce to sliding block 10 and support the pressure, let sliding block 10 slide, when sliding block 10 slides, just can drive two fixed rotating shaft 13 and slide, fixed rotating shaft 13 just can drive connecting rod 14 and slide, later connecting rod 14 just can promote slip semi-ring 11 through slip pivot 3 and slide, meanwhile, sealing ring 5 can produce the extrusion to first rubber gas ring 6, make inside gas of first rubber gas ring 6 transmit in second rubber gas ring 8 through rubber trachea 7, make second rubber gas ring 8 fill the gap between sealed lid 1 and cylinder body 2, alright guarantee to the sealed stability of cylinder body 2.
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 (5)
1. The utility model provides a sealing device of pneumatic cylinder, includes cylinder body (2), its characterized in that, cylinder body (2) tip is connected with sealed lid (1) through the mounting, sealed lid (1) bottom fixedly connected with sealing ring (5), be located sealing ring (5) bottom the seal groove with sealing ring (5) adaptation is seted up to cylinder body (2) inner wall, is equipped with sealing mechanism in the seal groove, is located sealed lid (1) bottom be equipped with cylinder cap (15) in cylinder body (2), sealed lid (1) bottom fixedly connected with fixed block (9), the fixed slot with fixed block (9) adaptation is seted up at cylinder cap (15) top, the fixed slot bottom is connected with sliding block (10) through support piece, sliding block (10) are connected with slip semi-ring (11) through link gear.
2. A sealing arrangement for hydraulic cylinders according to claim 1, characterised in that the fixing means comprise a fixed threaded rod (4) screwed to the ends of the cylinder bodies (2), each fixed threaded rod (4) extending through the sealing cover (1) and being screwed thereto.
3. The sealing device of the hydraulic cylinder according to claim 1, wherein the sealing mechanism comprises a first rubber air ring (6) arranged in the sealing groove, the outer side wall of the first rubber air ring (6) is provided with a rubber air pipe (7) in a penetrating manner and fixedly connected with the first rubber air ring, and the other end of the rubber air pipe (7) is fixedly connected with a second rubber air ring (8).
4. Sealing arrangement for a hydraulic cylinder according to claim 1, characterized in that said support element comprises a plurality of support springs (12) having one end fixedly connected to the bottom of the fixed groove, and the other end of said support springs (12) is fixedly connected to the bottom of the sliding block (10).
5. The sealing device of a hydraulic cylinder according to claim 1, characterized in that the linkage mechanism comprises two fixed rotating shafts (13) fixedly connected with the side walls of the sliding block (10), each fixed rotating shaft (13) is rotatably connected with a connecting rod (14), the other end of each connecting rod (14) is rotatably connected with a sliding rotating shaft (3), and the sliding rotating shaft (3) is fixedly connected with the sliding half ring (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122766817.8U CN217107680U (en) | 2021-11-12 | 2021-11-12 | Sealing device of hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122766817.8U CN217107680U (en) | 2021-11-12 | 2021-11-12 | Sealing device of hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217107680U true CN217107680U (en) | 2022-08-02 |
Family
ID=82587813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122766817.8U Active CN217107680U (en) | 2021-11-12 | 2021-11-12 | Sealing device of hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217107680U (en) |
-
2021
- 2021-11-12 CN CN202122766817.8U patent/CN217107680U/en active Active
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