CN113389899B - Suspension type double-expansion-ring sealing mechanism - Google Patents
Suspension type double-expansion-ring sealing mechanism Download PDFInfo
- Publication number
- CN113389899B CN113389899B CN202110676966.7A CN202110676966A CN113389899B CN 113389899 B CN113389899 B CN 113389899B CN 202110676966 A CN202110676966 A CN 202110676966A CN 113389899 B CN113389899 B CN 113389899B
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- sealing sleeve
- sealing
- hanging
- gland
- ring
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- 238000007789 sealing Methods 0.000 title claims abstract description 113
- 239000000725 suspension Substances 0.000 title claims abstract description 43
- 230000007246 mechanism Effects 0.000 title claims abstract description 32
- 210000004907 gland Anatomy 0.000 claims abstract description 51
- 230000000694 effects Effects 0.000 description 10
- 238000009434 installation Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/068—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces the packing swelling under working conditions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/002—Sealings comprising at least two sealings in succession
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
Abstract
The invention provides a suspension type double-expansion-ring sealing mechanism, and belongs to the technical field of workpiece sealing. This two ring sealing mechanism that rise of suspension type includes work piece body, seal assembly and suspension assembly, when using, the device passes through middle seal cover, go up the gland, lower gland, first sealing washer, the second sealing washer, stop screw and clamping bolt's design, make the device easy to assemble, the rethread hangs the connecting rod and is connected to the suspension rod, hang this seal mechanism to the work piece originally internally through the suspension rod, hang the back through rotating clamping bolt, make clamping bolt drive last gland and lower gland and remove to middle seal cover, and then make last gland and lower gland cooperation middle seal cover extrude first sealing washer and second sealing washer, make first sealing washer and second sealing washer extrude outside, seal between two rings, only need reverse rotation clamping bolt can when dismantling, sealing mechanism's result of use has been improved.
Description
Technical Field
The invention relates to the technical field of workpiece sealing, in particular to a suspension type double-expansion-ring sealing mechanism.
Background
Part of the workpiece in the diesel engine is an annular hollow structure casting, two annular surfaces are required to be blocked, and the annular groove is inspected.
When checking this work piece annular groove, the sealed effect of part sealing mechanism is not ideal when using, and when installing again, inconvenient installing and dismantling sealing mechanism influences sealing mechanism's result of use.
Disclosure of Invention
In order to make up for the defects, the invention provides a suspended double-expansion-ring sealing mechanism, which aims to solve the problems that the sealing effect is not ideal when a part of sealing mechanisms are used, and the sealing mechanisms are inconvenient to install and detach and the using effect of the sealing mechanisms is affected when the sealing mechanisms are installed.
The invention is realized in the following way:
the invention provides a hanging type double-expansion-ring sealing mechanism which comprises a workpiece body, a sealing assembly and a hanging assembly.
The utility model provides a work piece body, this internal fixedly connected with ring of work piece, the ring is equipped with two, seal assembly includes middle seal cover, goes up gland, lower gland, first sealing washer, second sealing washer, stop screw and clamping bolt, middle seal cover set up in inside the work piece body, middle seal cover outside both ends laminate respectively in two the ring, go up the gland set up in middle seal cover top, lower gland set up in middle seal cover bottom, first sealing washer set up in go up the gland with between the middle seal cover, the second sealing washer set up in lower gland with between the middle seal cover, first sealing washer with the second sealing washer is located two respectively circular ring department, stop screw one end fixed connection in middle seal cover bottom, the stop screw other end slip run through in lower gland, clamping bolt one end threaded connection in lower gland, the clamping bolt other end slip run through go up the gland, the clamping bolt keep away from lower one end outer wall fixed connection has protruding, the protruding one side of hanging the connecting rod is kept away from down in middle seal cover top, hanging one side hanging rod top and hanging rod top fixed connection in connecting rod top one end hanging rod top.
In one embodiment of the present invention, a setting groove is provided between the middle sealing sleeve and the upper gland, and the first sealing ring is disposed in the setting groove.
In one embodiment of the present invention, a setting groove is also provided between the middle sealing sleeve and the lower gland, and the second sealing ring is disposed in the setting groove.
In one embodiment of the invention, the limit screw is fixedly connected with one end of the middle sealing sleeve and is in threaded connection with a first nut.
In one embodiment of the invention, the limit screw is connected with a first screw through one end of the lower gland in a sliding way.
In one embodiment of the invention, one end of the clamping bolt is provided with a thread seat, the lower gland is internally provided with a thread groove, and the thread seat is in threaded connection with the thread groove.
In one embodiment of the invention, an adjusting nut is fixedly connected to one end of the clamping bolt, which is far away from the lower gland.
In one embodiment of the invention, the suspension connecting rod is fixedly connected with one end of the middle sealing sleeve and is connected with a second nut in a threaded manner.
In one embodiment of the invention, the hanging connecting rod is fixedly connected with one end of the hanging rod in a threaded manner, a second screw is connected with one end of the hanging rod in a threaded manner, a through hole is formed in the hanging rod, and the second screw is located in the through hole.
In one embodiment of the invention, two suspension rods are provided, and the two suspension rods are symmetrically arranged at two sides of the clamping bolt.
The beneficial effects of the invention are as follows: according to the suspended double-expansion-ring sealing mechanism, when the suspended double-expansion-ring sealing mechanism is used, the suspended double-expansion-ring sealing mechanism is convenient to install through the design of the middle sealing sleeve, the upper pressing cover, the lower pressing cover, the first sealing ring, the second sealing ring, the limiting screw and the clamping bolt, then the suspended double-expansion-ring sealing mechanism is connected to the suspending rod through the suspending rod, the sealing mechanism is suspended in the workpiece body through the suspending rod, the clamping bolt is rotated after the suspending, the upper pressing cover and the lower pressing cover are driven to move towards the middle sealing sleeve by the clamping bolt, the upper pressing cover and the lower pressing cover are matched with the middle sealing sleeve to extrude the first sealing ring and the second sealing ring outwards, sealing is carried out between the two circular rings, and when the suspended double-expansion-ring sealing mechanism is disassembled, the clamping bolt is only required to be rotated reversely, so that the using effect of the sealing mechanism is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a first view angle structure of a suspended double-expansion-ring sealing mechanism according to an embodiment of the present invention;
FIG. 2 is an exploded view of a hanging dual expansion ring seal mechanism according to an embodiment of the present invention;
FIG. 3 is a second perspective structural cross-sectional view of a positioning assembly and a bearing housing body provided in an embodiment of the present invention;
fig. 4 is an enlarged view of a in fig. 3 according to an embodiment of the present invention.
In the figure: 100-a workpiece body; 110-a circular ring; 200-a seal assembly; 210-an intermediate gland; 211-a placement groove; 220-capping; 230-lower gland; 231-thread groove; 240-a first sealing ring; 250-a second sealing ring; 260-limit screws; 261-first nut; 262-a first screw; 270-clamping the bolt; 271-limit protrusions; 272-a screw seat; 273-adjusting nut; 300-a suspension assembly; 310-hanging a connecting rod; 311-a second nut; 312-second screw; 320-hanging bar; 321-through holes.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should 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", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
Examples
Referring to fig. 1, the present invention provides a technical solution: the utility model provides a two ring sealing mechanism that rise of suspension type includes work piece body 100, seal assembly 200 and suspension assembly 300, and when specifically setting up, seal assembly 200 plays the effect of sealing in the work piece body 100, and suspension assembly 300 plays the effect of installation and dismantlement seal assembly 200, makes things convenient for operating personnel to operate seal assembly 200.
Referring to fig. 1 and 2, a ring 110 is fixedly connected to the workpiece body 100, and two rings 110 are provided.
Referring to fig. 2, 3 and 4, the seal assembly 200 includes a middle seal sleeve 210, an upper seal sleeve 220, a lower seal sleeve 230, a first seal ring 240, a second seal ring 250, a limit screw 260 and a clamping bolt 270, wherein the middle seal sleeve 210 is disposed inside the workpiece body 100, two ends of the outer side of the middle seal sleeve 210 are respectively attached to two circular rings 110, the upper seal sleeve 220 is disposed at the top of the middle seal sleeve 210, the lower seal sleeve 230 is disposed at the bottom of the middle seal sleeve 210, a disposition groove 211 is disposed between the middle seal sleeve 210 and the upper seal sleeve 220, the first seal ring 240 is disposed in the disposition groove 211, a disposition groove 211 is also disposed between the middle seal sleeve 210 and the lower seal sleeve 230, the second seal ring 250 is disposed in the disposition groove 211, the first seal ring 240 and the second seal ring 250 are respectively disposed at the two circular rings 110, and when in particular disposition, the first seal ring 240 and the second seal ring 250 play a role of sealing between the two circular rings 110, one end of a limit screw 260 is fixedly connected to the bottom of the middle sealing sleeve 210, the limit screw 260 is fixedly connected to one end of the middle sealing sleeve 210 in a threaded manner, a first nut 261 is connected to one end of the middle sealing sleeve 210 in a threaded manner, the other end of the limit screw 260 is slidably penetrated through the lower pressing cover 230, one end of the limit screw 260 is slidably penetrated through the lower pressing cover 230 in a threaded manner, a first screw 262 is convenient for an operator to install and detach the limit screw 260 when the limit screw 260 is specifically arranged, the first screw 262 plays a role in limiting the lower pressing cover 230, the lower pressing cover 230 is prevented from falling off when being reinstalled and used, one end of a clamping bolt 270 is provided with a threaded seat 272, a threaded groove 231 is formed in the lower pressing cover 230, the threaded seat 272 is in threaded connection with the threaded groove 231, the other end of the clamping bolt 270 is slidably penetrated through the upper pressing cover 220, the clamping bolt 270 is far away from the outer wall of one end of the lower pressing cover 230 in a fixedly connected with a limit protrusion 271, the spacing protruding 271 one side laminating is in last gland 220 top, clamping bolt 270 keeps away from gland 230 one end fixedly connected with adjusting nut 273 down, when specifically setting, adjusting nut 273 makes things convenient for operating personnel to rotate clamping bolt 270, when clamping bolt 270 takes place to rotate, through the threaded connection between clamping bolt 270 one end and gland 230 down and the spacing protruding 271 design of clamping bolt 270 other end, can make gland 220 and gland 230 down remove to middle seal cover 210 respectively, stop screw 260 can prevent gland 230 and take place to rotate when removing again, influence gland 230 removal effect, gland 220 and gland 230 down are when removing, cooperation middle seal cover 210 extrudees first sealing washer 240 and second sealing washer 250 outside, make first sealing washer 240 and second sealing washer 250 extrude outward, seal between two rings 110.
Referring to fig. 2 and 3, the suspension assembly 300 includes a suspension connecting rod 310 and a suspension rod 320, one end of the suspension connecting rod 310 is fixedly connected to the top of the middle sealing sleeve 210, the suspension connecting rod 310 is fixedly connected to a second nut 311 which is screwed to one end of the middle sealing sleeve 210, when the suspension connecting rod is specifically set, the second nut 311 facilitates the installation and disassembly of the suspension connecting rod 310, the other end of the suspension connecting rod 310 slides through the upper gland 220, when the suspension connecting rod is specifically set, the other end of the suspension connecting rod 310 slides through the upper gland 220, the effect of limiting the upper gland 220 is achieved, the upper gland 220 is prevented from rotating when the upper gland 220 moves, the moving effect of the upper gland 220 is affected, the bottom of the suspension rod 320 is fixedly connected to one end of the suspension connecting rod 310 far away from the middle sealing sleeve 210, the suspension connecting rod 310 is fixedly connected to one end of the suspension rod 320 through a second screw 312, a through hole 321 is formed in the suspension rod 320, the second screw 312 is located in the through hole 321, when the suspension rod 320 is specifically set, the second screw 312 facilitates the installation and disassembly of the suspension rod 320 by the operator, the design of the through hole 321 facilitates the hiding of the second screw 312, the two ends of the second screw, the attractive effect is achieved, the bottom of the suspension rod 320 is attached to the top of the workpiece body 100, and the two suspension rods are symmetrically arranged on two sides of the suspension rod 320, and two sides of the suspension rod 320 are symmetrically arranged.
Specifically, the working principle of the suspension type double-expansion-ring sealing mechanism is as follows: during the use, fix limit screw 260 in middle seal cover 210 bottom through first nut 261, then fix suspension connecting rod 310 in middle seal cover 210 top through second nut 311, set up upper gland 220 in middle seal cover 210 top through suspension connecting rod 310 after the fixation is accomplished, set up lower gland 230 in middle seal cover 210 bottom through limit screw 260, tighten up first screw 262 again, insert clamping bolt 270 in upper gland 220, make clamping bolt 270 one end threaded connection in lower gland 230, again with suspension rod 320 through second screw 312 fixed connection in suspension connecting rod 310 keep away from middle seal cover 210 one end, lay first sealing washer 240 and second sealing washer 250 respectively in the mounting groove 211 after the installation is accomplished, put the device into work piece body 100 after the completion, overlap joint work piece body 100 top with suspension rod 320 both ends bottom, rotate adjusting nut 273, adjusting nut 273 drives clamping bolt 270 and rotates, when clamping bolt 270 takes place the rotation, through the threaded connection between clamping bolt 270 one end and the lower gland 230 and the spacing 271 of clamping bolt 270 other end, make upper gland 220 and lower gland 230 respectively move to middle gland 210, when the second sealing washer 250 is carried out to the second sealing washer 240 and the second sealing washer 250, make two seal covers between two seal covers 250 and the middle seal cover 250 are extruded to the first sealing washer 240 and the second sealing washer 250.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A suspension type double-expansion ring sealing mechanism is characterized by comprising
The workpiece comprises a workpiece body (100), wherein a circular ring (110) is fixedly connected in the workpiece body (100), and two circular rings (110) are arranged;
the sealing assembly (200), the sealing assembly (200) comprises an intermediate sealing sleeve (210), an upper sealing sleeve (220), a lower sealing sleeve (230), a first sealing sleeve (240), a second sealing sleeve (250), limit screws (260) and clamping bolts (270), the intermediate sealing sleeve (210) is arranged inside the workpiece body (100), two outer ends of the intermediate sealing sleeve (210) are respectively attached to two circular rings (110), the upper sealing sleeve (220) is arranged at the top of the intermediate sealing sleeve (210), the lower sealing sleeve (230) is arranged at the bottom of the intermediate sealing sleeve (210), the first sealing sleeve (240) is arranged between the upper sealing sleeve (220) and the intermediate sealing sleeve (210), the second sealing sleeve (250) is arranged between the lower sealing sleeve (230) and the intermediate sealing sleeve (210), the first sealing sleeve (240) and the second sealing sleeve (250) are respectively arranged at the two circular rings (110), one end of the limit screws (260) is fixedly connected to the bottom of the intermediate sealing sleeve (210), the other end of the limit screws (260) is connected to the lower sealing sleeve (230) through the other end of the lower sealing sleeve (230) through the sliding bolts (270), the outer wall of one end, far away from the lower gland (230), of the clamping bolt (270) is fixedly connected with a limiting protrusion (271), and one side of the limiting protrusion (271) is attached to the top of the upper gland (220);
the hanging assembly (300), the hanging assembly (300) comprises a hanging connecting rod (310) and a hanging rod (320), one end of the hanging connecting rod (310) is fixedly connected to the top of the middle sealing sleeve (210), the other end of the hanging connecting rod (310) penetrates through the upper pressing cover (220) in a sliding mode, the bottom of the hanging rod (320) is fixedly connected to one end, far away from the middle sealing sleeve (210), of the hanging connecting rod (310), and the bottoms of the two ends of the hanging rod (320) are attached to the top of the workpiece body (100);
wherein a placement groove (211) is arranged between the middle sealing sleeve (210) and the upper gland (220), and the first sealing ring (240) is arranged in the placement groove (211);
a placement groove (211) is also formed between the middle sealing sleeve (210) and the lower pressing cover (230), and the second sealing ring (250) is arranged in the placement groove (211);
the limiting screw (260) is fixedly connected with one end of the middle sealing sleeve (210) and is in threaded connection with a first nut (261);
the limit screw (260) penetrates through one end of the lower gland (230) in a sliding manner and is connected with a first screw (262) in a threaded manner;
one end of the clamping bolt (270) is provided with a thread seat (272), a thread groove (231) is formed in the lower gland (230), and the thread seat (272) is in threaded connection with the thread groove (231).
2. The hanging double-expansion ring sealing mechanism according to claim 1, wherein an adjusting nut (273) is fixedly connected to one end of the clamping bolt (270) away from the lower gland (230).
3. A hanging double expansion ring sealing mechanism according to claim 1, characterized in that the hanging connecting rod (310) is fixedly connected with one end of the middle sealing sleeve (210) and is connected with a second nut (311) in a threaded manner.
4. The hanging double-expansion-ring sealing mechanism according to claim 1, wherein the hanging connecting rod (310) is fixedly connected with a second screw (312) in threaded connection with one end of the hanging rod (320), a through hole (321) is formed in the hanging rod (320), and the second screw (312) is located in the through hole (321).
5. The hanging double-expansion-ring sealing mechanism according to claim 1, wherein two hanging rods (320) are provided, and the two hanging rods (320) are symmetrically arranged at two sides of the clamping bolt (270).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110676966.7A CN113389899B (en) | 2021-06-18 | 2021-06-18 | Suspension type double-expansion-ring sealing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110676966.7A CN113389899B (en) | 2021-06-18 | 2021-06-18 | Suspension type double-expansion-ring sealing mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113389899A CN113389899A (en) | 2021-09-14 |
| CN113389899B true CN113389899B (en) | 2024-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110676966.7A Active CN113389899B (en) | 2021-06-18 | 2021-06-18 | Suspension type double-expansion-ring sealing mechanism |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5350017A (en) * | 1993-04-09 | 1994-09-27 | Abb Vetco Gray Inc. | Elastomeric seal with reinforcing ring |
| CN101109446A (en) * | 2007-08-16 | 2008-01-23 | 广州广重企业集团有限公司 | Sealing device of disk shaped knife |
| CN102761197A (en) * | 2012-07-11 | 2012-10-31 | 成都欧迅海洋工程装备科技有限公司 | Balancer and dynamic seal integrated structure |
| CN106678477A (en) * | 2017-02-20 | 2017-05-17 | 江苏丰禾机械制造股份有限公司 | Self-pressing dynamic seal compensator |
| CN108071797A (en) * | 2016-11-10 | 2018-05-25 | 常州星宇车灯股份有限公司 | A kind of adaptive dibit fastening sealing device |
| CN215172199U (en) * | 2021-06-18 | 2021-12-14 | 广西玉柴机器股份有限公司 | Suspension type double-expansion-ring sealing mechanism |
-
2021
- 2021-06-18 CN CN202110676966.7A patent/CN113389899B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5350017A (en) * | 1993-04-09 | 1994-09-27 | Abb Vetco Gray Inc. | Elastomeric seal with reinforcing ring |
| CN101109446A (en) * | 2007-08-16 | 2008-01-23 | 广州广重企业集团有限公司 | Sealing device of disk shaped knife |
| CN102761197A (en) * | 2012-07-11 | 2012-10-31 | 成都欧迅海洋工程装备科技有限公司 | Balancer and dynamic seal integrated structure |
| CN108071797A (en) * | 2016-11-10 | 2018-05-25 | 常州星宇车灯股份有限公司 | A kind of adaptive dibit fastening sealing device |
| CN106678477A (en) * | 2017-02-20 | 2017-05-17 | 江苏丰禾机械制造股份有限公司 | Self-pressing dynamic seal compensator |
| CN215172199U (en) * | 2021-06-18 | 2021-12-14 | 广西玉柴机器股份有限公司 | Suspension type double-expansion-ring sealing mechanism |
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| CN113389899A (en) | 2021-09-14 |
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